DTE ENERGY CO (Form: 10-Q, Received: 10/24/2018 12:03:25)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period ended September 30, 2018



Commission File Number	Registrants, State of Incorporation, Address, and Telephone Number	I.R.S. Employer Identification No.
1-11607	DTE Energy Company (a Michigan corporation) One Energy Plaza Detroit, Michigan 48226-1279 313-235-4000	38-3217752

1-2198	DTE Electric Company (a Michigan corporation) One Energy Plaza Detroit, Michigan 48226-1279 313-235-4000	38-0478650

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.



DTE Energy Company (DTE Energy)	Yes x No o	DTE Electric Company (DTE Electric)	Yes x No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).



DTE Energy	Yes x No o	DTE Electric	Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.



DTE Energy	Large accelerated filer x	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o	Emerging growth company o

DTE Electric	Large accelerated filer o	Accelerated filer o	Non-accelerated filer x	Smaller reporting company o	Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).



DTE Energy	Yes o No x	DTE Electric	Yes o No x

Number of shares of Common Stock outstanding at September 30, 2018 :



Registrant	Description	Shares
DTE Energy	Common Stock, without par value	181,925,024

DTE Electric	Common Stock, $10 par value, directly owned by DTE Energy	138,632,324

This combined Form 10-Q is filed separately by two registrants: DTE Energy and DTE Electric. Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. DTE Electric makes no representation as to information relating exclusively to DTE Energy.

DTE Electric, a wholly-owned subsidiary of DTE Energy, meets the conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q and is therefore filing this form with the reduced disclosure format specified in General Instructions H(2) of Form 10-Q.

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TABLE OF CONTENTS



		Page
	Definitions	1
	Filing Format	3
	Forward-Looking Statements	3
PART I - FINANCIAL INFORMATION
Item 1.	Financial Statements
	DTE Energy Consolidated Financial Statements (Unaudited)	5
	DTE Electric Consolidated Financial Statements (Unaudited)	11
	Combined Notes to Consolidated Financial Statements (Unaudited)	17
	Note 1 — Organization and Basis of Presentation	17
	Note 2 — Significant Accounting Policies	20
	Note 3 — New Accounting Pronouncements	22
	Note 4 — Revenue	24
	Note 5 — Regulatory Matters	28
	Note 6 — Earnings Per Share	30
	Note 7 — Fair Value	31
	Note 8 — Financial and Other Derivative Instruments	38
	Note 9 — Long-Term Debt	43
	Note 10 — Short-Term Credit Arrangements and Borrowings	43
	Note 11 — Commitments and Contingencies	44
	Note 12 — Retirement Benefits and Trusteed Assets	49
	Note 13 — Segment and Related Information	50
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	52
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	69
Item 4.	Controls and Procedures	72
PART II - OTHER INFORMATION
Item 1.	Legal Proceedings	73
Item 1A.	Risk Factors	73
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	73
Item 6.	Exhibits	74
	Signatures	75

DEFINITIONS



AFUDC	Allowance for Funds Used During Construction

AGS	Appalachia Gathering System is a midstream natural gas asset located in Pennsylvania and West Virginia. DTE Energy purchased 100% of AGS in October 2016, and this asset is part of DTE Energy's Gas Storage and Pipelines segment.

AMT	Alternative Minimum Tax

ANPR	Advanced Notice of Proposed Rulemaking

ASU	Accounting Standards Update issued by the FASB

CCR	Coal Combustion Residuals

CFTC	U.S. Commodity Futures Trading Commission

CON	Certificate of Necessity

DTE Electric	DTE Electric Company (a direct wholly-owned subsidiary of DTE Energy) and subsidiary companies

DTE Energy	DTE Energy Company, directly or indirectly the parent of DTE Electric, DTE Gas, and numerous non-utility subsidiaries

DTE Gas	DTE Gas Company (an indirect wholly-owned subsidiary of DTE Energy) and subsidiary companies

EGU	Electric Generating Unit

ELG	Effluent Limitations Guidelines

EPA	U.S. Environmental Protection Agency

Equity units	DTE Energy's 2016 Equity Units issued in October 2016, which were used to finance the October 1, 2016 Gas Storage and Pipelines acquisition

FASB	Financial Accounting Standards Board

FERC	Federal Energy Regulatory Commission

FOV	Finding of Violation

FTRs	Financial Transmission Rights are financial instruments that entitle the holder to receive payments related to costs incurred for congestion on the transmission grid.

GCR	A Gas Cost Recovery mechanism authorized by the MPSC that allows DTE Gas to recover through rates its natural gas costs.

GHGs	Greenhouse gases

Green Bonds	A financing option to fund projects that have a positive environmental impact based upon a specified set of criteria. The proceeds are required to be used for eligible green expenditures.

MDEQ	Michigan Department of Environmental Quality

MGP	Manufactured Gas Plant

MPSC	Michigan Public Service Commission

MTM	Mark-to-market

NAV	Net Asset Value

NEXUS	NEXUS Gas Transmission, LLC, a joint venture in which DTE Energy own a 50% partnership interest.

Non-utility	An entity that is not a public utility. Its conditions of service, prices of goods and services, and other operating related matters are not directly regulated by the MPSC.

NOV	Notice of Violation

DEFINITIONS



NO _X	Nitrogen Oxides

NRC	U.S. Nuclear Regulatory Commission

Production tax credits	Tax credits as authorized under Sections 45K and 45 of the Internal Revenue Code that are designed to stimulate investment in and development of alternate fuel sources. The amount of a production tax credit can vary each year as determined by the Internal Revenue Service.

PSCR	A Power Supply Cost Recovery mechanism authorized by the MPSC that allows DTE Electric to recover through rates its fuel, fuel-related, and purchased power costs.

REC	Renewable Energy Credit

REF	Reduced Emissions Fuel

Registrants	DTE Energy and DTE Electric

Retail access	Michigan legislation provided customers the option of access to alternative suppliers for electricity and natural gas.

SEC	Securities and Exchange Commission

SGG	Stonewall Gas Gathering is a midstream natural gas asset located in West Virginia. DTE Energy purchased 55% of SGG in October 2016, and this asset is part of DTE Energy's Gas Storage and Pipelines segment.

SO ₂	Sulfur Dioxide

TCJA	Tax Cuts and Jobs Act of 2017

TCJA rate reduction reserve	Beginning January 1, 2018, as a result of the change in the corporate tax rate, DTE Electric and DTE Gas have reduced revenue and recorded an offsetting regulatory liability

Topic 606	FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, as amended

TRM	A Transitional Reconciliation Mechanism authorized by the MPSC that allows DTE Electric to recover through rates the deferred net incremental revenue requirement associated with the transition of City of Detroit's Public Lighting Department customers to DTE Electric's distribution system.

VIE	Variable Interest Entity



Units of Measurement

BTU	Heat value (energy content) of fuel

MMBtu	One million BTU

MWh	Megawatthour of electricity

FILING FORMAT

This combined Form 10-Q is separately filed by DTE Energy and DTE Electric. Information in this combined Form 10-Q relating to each individual Registrant is filed by such Registrant on its own behalf. DTE Electric makes no representation regarding information relating to any other companies affiliated with DTE Energy other than its own subsidiaries. Neither DTE Energy, nor any of DTE Energy’s other subsidiaries (other than DTE Electric), has any obligation in respect of DTE Electric's debt securities, and holders of such debt securities should not consider the financial resources or results of operations of DTE Energy nor any of DTE Energy’s other subsidiaries (other than DTE Electric and its own subsidiaries (in relevant circumstances)) in making a decision with respect to DTE Electric's debt securities. Similarly, none of DTE Electric nor any other subsidiary of DTE Energy has any obligation in respect to debt securities of DTE Energy. This combined Form 10-Q should be read in its entirety. No one section of this combined Form 10-Q deals with all aspects of the subject matter of this combined Form 10-Q. This combined Form 10-Q should be read in conjunction with the Consolidated Financial Statements and Combined Notes to Consolidated Financial Statements and with Management's Discussion and Analysis included in the combined DTE Energy and DTE Electric 2017 Annual Report on Form 10-K.

FORWARD-LOOKING STATEMENTS

Certain information presented herein includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 with respect to the financial condition, results of operations, and businesses of the Registrants. Words such as “anticipate,” “believe,” “expect,” “may,” “could,” “projected,” “aspiration,” “plans,” and “goals” signify forward-looking statements. Forward-looking statements are not guarantees of future results and conditions, but rather are subject to numerous assumptions, risks, and uncertainties that may cause actual future results to be materially different from those contemplated, projected, estimated, or budgeted. Many factors may impact forward-looking statements of the Registrants including, but not limited to, the following:


•	impact of regulation by the EPA, the FERC, the MPSC, the NRC, and for DTE Energy, the CFTC, as well as other applicable governmental proceedings and regulations, including any associated impact on rate structures;


•	the amount and timing of cost recovery allowed as a result of regulatory proceedings, related appeals, or new legislation, including legislative amendments and retail access programs;


•	economic conditions and population changes in the Registrants' geographic area resulting in changes in demand, customer conservation, and thefts of electricity and, for DTE Energy, natural gas;


•	environmental issues, laws, regulations, and the increasing costs of remediation and compliance, including actual and potential new federal and state requirements;


•	the cost of protecting assets against, or damage due to, cyber crime and terrorism;


•	health, safety, financial, environmental, and regulatory risks associated with ownership and operation of nuclear facilities;


•	volatility in the short-term natural gas storage markets impacting third-party storage revenues related to DTE Energy;


•	impact of volatility of prices in the oil and gas markets on DTE Energy's gas storage and pipelines operations;


•	impact of volatility in prices in the international steel markets on DTE Energy's power and industrial projects operations;


•	volatility in commodity markets, deviations in weather, and related risks impacting the results of DTE Energy's energy trading operations;


•	changes in the cost and availability of coal and other raw materials, purchased power, and natural gas;


•	advances in technology that produce power or reduce power consumption;


•	changes in the financial condition of significant customers and strategic partners;


•	the potential for losses on investments, including nuclear decommissioning and benefit plan assets and the related increases in future expense and contributions;


•	access to capital markets and the results of other financing efforts which can be affected by credit agency ratings;


•	instability in capital markets which could impact availability of short and long-term financing;


•	the timing and extent of changes in interest rates;


•	the level of borrowings;


•	the potential for increased costs or delays in completion of significant capital projects;


•	changes in, and application of, federal, state, and local tax laws and their interpretations, including the Internal Revenue Code, regulations, rulings, court proceedings, and audits;


•	the effects of weather and other natural phenomena on operations and sales to customers, and purchases from suppliers;


•	unplanned outages;


•	employee relations and the impact of collective bargaining agreements;


•	the risk of a major safety incident;


•	the availability, cost, coverage, and terms of insurance and stability of insurance providers;


•	cost reduction efforts and the maximization of plant and distribution system performance;


•	the effects of competition;


•	changes in and application of accounting standards and financial reporting regulations;


•	changes in federal or state laws and their interpretation with respect to regulation, energy policy, and other business issues;


•	contract disputes, binding arbitration, litigation, and related appeals; and


•	the risks discussed in the Registrants' public filings with the Securities and Exchange Commission.

New factors emerge from time to time. The Registrants cannot predict what factors may arise or how such factors may cause results to differ materially from those contained in any forward-looking statement. Any forward-looking statements speak only as of the date on which such statements are made. The Registrants undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made or to reflect the occurrence of unanticipated events.

Part I — Financial Information

Item 1. Financial Statements

DTE Energy Company

Consolidated Statements of Operations (Unaudited)



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions, except per share amounts)
Operating Revenues
Utility operations	$	1,669		$	1,573		$	4,923		$	4,714
Non-utility operations	1,881			1,672			5,539			4,622
	3,550			3,245			10,462			9,336

Operating Expenses
Fuel, purchased power, and gas — utility	453			437			1,440			1,362
Fuel, purchased power, and gas — non-utility	1,682			1,469			4,898			3,897
Operation and maintenance	604			550			1,721			1,676
Depreciation and amortization	273			258			826			756
Taxes other than income	99			91			307			297
Asset (gains) losses and impairments, net	10			6			8			9
	3,121			2,811			9,200			7,997
Operating Income	429			434			1,262			1,339

Other (Income) and Deductions
Interest expense	142			146			412			404
Interest income	(3		)	(4		)	(9		)	(9		)
Non-operating retirement benefits, net	9			16			27			49
Other income	(99		)	(74		)	(262		)	(204		)
Other expenses	11			13			51			26
	60			97			219			266
Income Before Income Taxes	369			337			1,043			1,073

Income Tax Expense	34			74			121			241

Net Income	335			263			922			832

Less: Net Income (Loss) Attributable to Noncontrolling Interests	1			(7		)	(7		)	(15		)

Net Income Attributable to DTE Energy Company	$	334		$	270		$	929		$	847

Basic Earnings per Common Share
Net Income Attributable to DTE Energy Company	$	1.84		$	1.51		$	5.13		$	4.72

Diluted Earnings per Common Share
Net Income Attributable to DTE Energy Company	$	1.84		$	1.51		$	5.13		$	4.72

Weighted Average Common Shares Outstanding
Basic	182			179			181			179
Diluted	182			179			181			179
Dividends Declared per Common Share	$	—		$	—		$	2.65		$	2.48

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company

Consolidated Statements of Comprehensive Income (Unaudited)



	Three Months Ended September 30,					Nine Months Ended September 30,
	2018		2017			2018			2017
	(In millions)
Net Income	$	335	$	263		$	922		$	832

Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $—, $2, $2, and $6, respectively	2		3			7			10
Net unrealized gains on investments during the period, net of taxes of $1 for the nine months ended September 30, 2017	—		—			—			1
Net unrealized gains on derivatives during the period, net of taxes of $—, respectively	1		—			1			—
Foreign currency translation	—		2			(1		)	2
Other comprehensive income	3		5			7			13

Comprehensive income	338		268			929			845
Less: Comprehensive income (loss) attributable to noncontrolling interests	1		(7		)	(7		)	(15		)
Comprehensive Income Attributable to DTE Energy Company	$	337	$	275		$	936		$	860

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company

Consolidated Statements of Financial Position (Unaudited)



	September 30,			December 31,
	2018			2017
	(In millions)
ASSETS
Current Assets
Cash and cash equivalents	$	84		$	66
Restricted cash	20			23
Accounts receivable (less allowance for doubtful accounts of $75 and $49, respectively)
Customer	1,690			1,758
Other	83			98
Inventories
Fuel and gas	390			399
Materials and supplies	377			380
Derivative assets	97			103
Regulatory assets	90			55
Other	272			199
	3,103			3,081
Investments
Nuclear decommissioning trust funds	1,525			1,492
Investments in equity method investees	1,670			1,073
Other	241			232
	3,436			2,797
Property
Property, plant, and equipment	32,600			31,424
Accumulated depreciation and amortization	(10,988		)	(10,703		)
	21,612			20,721
Other Assets
Goodwill	2,293			2,293
Regulatory assets	3,689			3,723
Intangible assets	864			867
Notes receivable	67			73
Derivative assets	31			51
Prepaid postretirement costs	45			—
Other	152			161
	7,141			7,168
Total Assets	$	35,292		$	33,767

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company

Consolidated Statements of Financial Position (Unaudited) — (Continued)



	September 30,			December 31,
	2018			2017
	(In millions, except shares)
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable	$	1,160		$	1,171
Accrued interest	143			111
Dividends payable	161			158
Short-term borrowings	77			621
Current portion long-term debt, including capital leases	1			109
Derivative liabilities	79			99
Regulatory liabilities	34			18
Other	462			525
	2,117			2,812
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	12,475			11,039
Junior subordinated debentures	1,145			1,145
Capital lease obligations	—			1
	13,620			12,185
Other Liabilities
Deferred income taxes	1,974			1,888
Regulatory liabilities	3,029			2,875
Asset retirement obligations	2,428			2,320
Unamortized investment tax credit	140			122
Derivative liabilities	66			47
Accrued pension liability	719			924
Accrued postretirement liability	—			61
Nuclear decommissioning	224			220
Other	285			323
	8,865			8,780
Commitments and Contingencies (Notes 5 and 11)

Equity
Common stock (No par value, 400,000,000 shares authorized, and 181,925,024 and 179,386,967 shares issued and outstanding at September 30, 2 018 and December 31, 2017, respectively)	4,232			3,989
Retained earnings	6,093			5,643
Accumulated other comprehensive loss	(118		)	(120		)
Total DTE Energy Company Equity	10,207			9,512
Noncontrolling interests	483			478
Total Equity	10,690			9,990
Total Liabilities and Equity	$	35,292		$	33,767

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company

Consolidated Statements of Cash Flows (Unaudited)



	Nine Months Ended September 30,
	2018			2017
	(In millions)
Operating Activities
Net Income	$	922		$	832
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	826			756
Nuclear fuel amortization	39			39
Allowance for equity funds used during construction	(20		)	(17		)
Deferred income taxes	118			261
Equity earnings of equity method investees	(99		)	(77		)
Dividends from equity method investees	48			55
Asset (gains) losses and impairments, net	11			5
Changes in assets and liabilities:
Accounts receivable, net	85			43
Inventories	11			(41		)
Prepaid postretirement benefit costs	(45		)	—
Accounts payable	9			25
Accrued pension liability	(205		)	(230		)
Accrued postretirement liability	(61		)	(30		)
Derivative assets and liabilities	24			(133		)
Regulatory assets and liabilities	283			260
Other current and noncurrent assets and liabilities	101			(198		)
Net cash from operating activities	2,047			1,550
Investing Activities
Plant and equipment expenditures — utility	(1,562		)	(1,439		)
Plant and equipment expenditures — non-utility	(217		)	(133		)
Proceeds from sale of nuclear decommissioning trust fund assets	810			951
Investment in nuclear decommissioning trust funds	(810		)	(936		)
Distributions from equity method investees	8			10
Contributions to equity method investees	(545		)	(194		)
Other	(20		)	(61		)
Net cash used for investing activities	(2,336		)	(1,802		)
Financing Activities
Issuance of long-term debt, net of issuance costs	1,433			1,010
Redemption of long-term debt	(105		)	(385		)
Short-term borrowings, net	(544		)	160
Issuance of common stock	7			—
Repurchase of common stock	—			(51		)
Dividends on common stock	(459		)	(444		)
REF contributions from noncontrolling interests	43			34
Distributions to noncontrolling interests	(31		)	(29		)
Other	(40		)	(70		)
Net cash from financing activities	304			225
Net Increase (Decrease) in Cash, Cash Equ ivalents, and Restricted Cash	15			(27		)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	89			113
Cash, Cash Equivalents, and Restricted Cash at End of Period	$	104		$	86

Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$	275		$	222

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company

Consolidated Statements of Changes in Equity (Unaudited)



				Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interests
	Common Stock
	Shares	Amount											Total
	(Dollars in millions, shares in thousands)
Balance, December 31, 2017	179,387	$	3,989	$	5,643		$	(120	)	$	478		$	9,990
Implementation of ASU 2016-01	—	—		5			(5		)	—			—
Net Income (Loss)	—	—		929			—			(7		)	922
Dividends declared on common stock	—	—		(481		)	—			—			(481		)
Issuance of common stock	255	26		—			—			—			26
Contribution of common stock to pension plan	1,751	175		—			—			—			175
Benefit obligations, net of tax	—	—		—			7			—			7
Net unrealized gains on derivatives, net of tax	—	—		—			1			—			1
Foreign currency translation	—	—		—			(1		)	—			(1		)
Stock-based compensation, net contributions from noncontrolling interests, and other	532	42		(3		)	—			12			51
Balance, September 30, 2018	181,925	$	4,232	$	6,093		$	(118	)	$	483		$	10,690

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Operations (Unaudited)



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Operating Revenues — Utility operations	$	1,521		$	1,434		$	4,002		$	3,827

Operating Expenses
Fuel and purchased power — utility	438			428			1,163			1,097
Operation and maintenance	360			349			1,025			1,068
Depreciation and amortization	202			188			616			549
Taxes other than income	77			74			232			229
	1,077			1,039			3,036			2,943
Operating Income	444			395			966			884

Other (Income) and Deductions
Interest expense	73			68			210			206
Non-operating retirement benefits, net	(1		)	—			(1		)	—
Other income	(23		)	(21		)	(72		)	(57		)
Other expenses	9			11			49			23
	58			58			186			172
Income Before Income Taxes	386			337			780			712

Income Tax Expense	81			118			172			249

Net Income	$	305		$	219		$	608		$	463

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Comprehensive Income (Unaudited)



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions)
Net Income	$	305	$	219	$	608	$	463
Other comprehensive income	—		—		—		—
Comprehensive Income	$	305	$	219	$	608	$	463

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Financial Position (Unaudited)



	September 30,			December 31,
	2018			2017
	(In millions)
ASSETS
Current Assets
Cash and cash equivalents	$	12		$	15
Accounts receivable (less allowance for doubtful accounts of $43 and $31, respectively)
Customer	894			791
Affiliates	4			20
Other	40			37
Inventories
Fuel	145			190
Materials and supplies	277			275
Regulatory assets	89			50
Prepaid property tax	111			48
Other	15			20
	1,587			1,446
Investments
Nuclear decommissioning trust funds	1,525			1,492
Other	40			36
	1,565			1,528
Property
Property, plant, and equipment	23,683			22,972
Accumulated depreciation and amortization	(8,156		)	(7,984		)
	15,527			14,988
Other Assets
Regulatory assets	3,003			3,005
Intangible assets	29			25
Prepaid postretirement costs — affiliates	113			113
Other	117			123
	3,262			3,266
Total Assets	$	21,941		$	21,228

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Financial Position (Unaudited) — (Continued)



	September 30,		December 31,
	2018		2017
	(In millions, except shares)
LIABILITIES AND SHAREHOLDER’S EQUITY
Current Liabilities
Accounts payable
Affiliates	$	56	$	52
Other	391		416
Accrued interest	78		72
Current portion long-term debt, including capital leases	1		5
Regulatory liabilities	13		17
Short-term borrowings
Affiliates	143		116
Other	51		238
Other	143		145
	876		1,061
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	6,537		6,017
Capital lease obligations	—		1
	6,537		6,018
Other Liabilities
Deferred income taxes	2,210		2,088
Regulatory liabilities	2,259		2,137
Asset retirement obligations	2,228		2,125
Unamortized investment tax credit	138		120
Nuclear decommissioning	224		220
Accrued pension liability — affiliates	626		811
Accrued postretirement liability — affiliates	240		311
Other	76		72
	8,001		7,884
Commitments and Contingencies (Notes 5 and 11)

Shareholder’s Equity
Common stock ($10 par value, 400,000,000 shares authorized, and 138,632,324 shares issued and outstanding for both pe riods)	4,306		4,306
Retained earnings	2,221		1,956
Accumulated other comprehensive income	—		3
Total Shareholder’s Equity	6,527		6,265
Total Liabilities and Shareholder’s Equity	$	21,941	$	21,228

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Cash Flows (Unaudited)



	Nine Months Ended September 30,
	2018			2017
	(In millions)
Operating Activities
Net Income	$	608		$	463
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	616			549
Nuclear fuel amortization	39			39
Allowance for equity funds used during construction	(14		)	(14		)
Deferred income taxes	156			248
Changes in assets and liabilities:
Accounts receivable, net	(89		)	(104		)
Inventories	43			32
Accounts payable	18			32
Accrued pension liability — affiliates	(185		)	(182		)
Accrued postretirement liability — affiliates	(71		)	(17		)
Regulatory assets and liabilities	195			223
Other current and noncurrent assets and liabilities	(71		)	(174		)
Net cash from operating activities	1,245			1,095
Investing Activities
Plant and equipment expenditures	(1,248		)	(1,103		)
Proceeds from sale of nuclear decommissioning trust fund assets	810			951
Investment in nuclear decommissioning trust funds	(810		)	(936		)
Other	(7		)	—
Net cash used for investing activities	(1,255		)	(1,088		)
Financing Activities
Issuance of long-term debt, net of issuance costs	520			435
Redemption of long-term debt	—			(300		)
Short-term borrowings, net — affiliate	27			(51		)
Short-term borrowings, net — other	(187		)	249
Dividends on common stock	(346		)	(324		)
Other	(7		)	(17		)
Net cash from (used for) financing act ivities	7			(8		)
Net Decrease in Cash and Cash Equivalents	(3		)	(1		)
Cash and Cash Equivalents at Beginning of Period	15			13
Cash and Cash Equivalents at End of Period	$	12		$	12

Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$	152		$	112

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Electric Company

Consolidated Statements of Changes in Shareholder's Equity (Unaudited)



				Additional Paid-in Capital		Retained Earnings			Accumulated Other Comprehensive Income
	Common Stock
	Shares	Amount										Total
	(Dollars in millions, shares in thousands)
Balance, December 31, 2017	138,632	$	1,386	$	2,920	$	1,956		$	3		$	6,265
Implementation of ASU 2016-01	—	—		—		3			(3		)	—
Net Income	—	—		—		608			—			608
Dividends declared on common stock	—	—		—		(346		)	—			(346		)
Balance, September 30, 2018	138,632	$	1,386	$	2,920	$	2,221		$	—		$	6,527

See Combined Notes to Consolidated Financial Statements (Unaudited)

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited)

Index of Combined Notes to Consolidated Financial Statements (Unaudited)

The Combined Notes to Consolidated Financial Statements (Unaudited) are a combined presentation for DTE Energy and DTE Electric. The following list indicates the Registrant(s) to which each note applies:



Note 1	Organization and Basis of Presentation	DTE Energy and DTE Electric
Note 2	Significant Accounting Policies	DTE Energy and DTE Electric
Note 3	New Accounting Pronouncements	DTE Energy and DTE Electric
Note 4	Revenue	DTE Energy and DTE Electric
Note 5	Regulatory Matters	DTE Energy and DTE Electric
Note 6	Earnings per Share	DTE Energy
Note 7	Fair Value	DTE Energy and DTE Electric
Note 8	Financial and Other Derivative Instruments	DTE Energy and DTE Electric
Note 9	Long-Term Debt	DTE Energy and DTE Electric
Note 10	Short-Term Credit Arrangements and Borrowings	DTE Energy and DTE Electric
Note 11	Commitments and Contingencies	DTE Energy and DTE Electric
Note 12	Retirement Benefits and Trusteed Assets	DTE Energy and DTE Electric
Note 13	Segment and Related Information	DTE Energy

NOTE 1 — ORGANIZATION AND BASIS OF PRESENTATION

Corporate Structure

DTE Energy owns the following businesses:


•	DTE Electric is a public utility engaged in the generation, purchase, distribution, and sale of electricity to approximately 2.2 million customers in southeastern Michigan;


•	DTE Gas is a public utility engaged in the purchase, storage, transportation, distribution, and sale of natural gas to approximately 1.3 million customers throughout Michigan and the sale of storage and transportation capacity; and


•	Other businesses involved in 1) services related to the gathering, transportation, and storage of natural gas; 2) power and industrial projects; and 3) energy marketing and trading operations.

DTE Electric and DTE Gas are regulated by the MPSC. Certain activities of DTE Electric and DTE Gas, as well as various other aspects of businesses under DTE Energy, are regulated by the FERC. In addition, the Registrants are regulated by other federal and state regulatory agencies including the NRC, the EPA, the MDEQ, and for DTE Energy, the CFTC.

Basis of Presentation

The Consolidated Financial Statements should be read in conjunction with the Combined Notes to Consolidated Financial Statements included in the combined DTE Energy and DTE Electric 2017 Annual Report on Form 10-K.

The accompanying Consolidated Financial Statements of the Registrants are prepared using accounting principles generally accepted in the United States of America. These accounting principles require management to use estimates and assumptions that impact reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. Actual results may differ from the Registrants' estimates.

The Consolidated Financial Statements are unaudited but, in the Registrants' opinions include all adjustments necessary to present a fair statement of the results for the interim periods. All adjustments are of a normal recurring nature, except as otherwise disclosed in these Consolidated Financial Statements and Combined Notes to Consolidated Financial Statements. Financial results for this interim period are not necessarily indicative of results that may be expected for any other interim period or for the fiscal year ending December 31, 2018 .

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The information in these combined notes relates to each of the Registrants as noted in the Index of Combined Notes to Consolidated Financial Statements. However, DTE Electric does not make any representation as to information related solely to DTE Energy or the subsidiaries of DTE Energy other than itself.

Certain prior year balances for DTE Energy were reclassified to match the current year's Consolidated Financial Statements presentation.

Due to the implementation of ASU 2017-07, amounts previously included in Operation and maintenance were reclassified to Non-operating retirement benefits, net on the Consolidated Statements of Operations. See Note 3 to the Consolidated Financial Statements, " New Accounting Pronouncements ."

The Dividends Declared per Common Share for the three months ended September 30, 2017 on DTE Energy’s Consolidated Statements of Operations was revised to reflect zero dividend declarations in the third quarter of 2017, or $0.00 for the three-month period. The financial statements previously reflected one dividend declaration of $0.83 for the three-month period ended September 30, 2017. This revision was not material to DTE Energy's Consolidated Financial Statements.

Principles of Consolidation

The Registrants consolidate all majority-owned subsidiaries and investments in entities in which they have controlling influence. Non-majority owned investments are accounted for using the equity method when the Registrants are able to significantly influence the operating policies of the investee. When the Registrants do not influence the operating policies of an investee, the cost method is used. These Consolidated Financial Statements also reflect the Registrants' proportionate interests in certain jointly-owned utility plants. The Registrants eliminate all intercompany balances and transactions.

The Registrants evaluate whether an entity is a VIE whenever reconsideration events occur. The Registrants consolidate VIEs for which they are the primary beneficiary. If a Registrant is not the primary beneficiary and an ownership interest is held, the VIE is accounted for under the equity method of accounting. When assessing the determination of the primary beneficiary, a Registrant considers all relevant facts and circumstances, including: the power, through voting or similar rights, to direct the activities of the VIE that most significantly impact the VIE's economic performance and the obligation to absorb the expected losses and/or the right to receive the expected returns of the VIE. The Registrants perform ongoing reassessments of all VIEs to determine if the primary beneficiary status has changed.

Legal entities within DTE Energy's Power and Industrial Projects segment enter into long-term contractual arrangements with customers to supply energy-related products or services. The entities are generally designed to pass-through the commodity risk associated with these contracts to the customers, with DTE Energy retaining operational and customer default risk. These entities generally are VIEs and consolidated when DTE Energy is the primary beneficiary. In addition, DTE Energy has interests in certain VIEs through which control of all significant activities is shared with partners, and therefore are accounted for under the equity method.

DTE Energy owns a 55% interest in SGG, which owns and operates midstream natural gas assets. SGG has contracts through which certain construction risk is designed to pass-through to the customers, with DTE Energy retaining operational and customer default risk. SGG is a VIE with DTE Energy as the primary beneficiary.

The Registrants have variable interests in NEXUS, which include DTE Energy's 50% ownership interest and DTE Electric's transportation services contract. NEXUS is a joint venture which owns a 256-mile pipeline to transport Utica and Marcellus shale gas to Ohio, Michigan, and Ontario market centers. NEXUS is a VIE as it has insufficient equity at risk to finance its activities. The Registrants are not the primary beneficiaries, as the power to direct significant activities is shared between the owners of the equity interests. DTE Energy accounts for its ownership interest in NEXUS under the equity method.

The Registrants hold ownership interests in certain limited partnerships. The limited partnerships include investment funds which support regional development and economic growth, as well as an operational business providing energy-related products. These entities are generally VIEs as a result of certain characteristics of the limited partnership voting rights. The ownership interests are accounted for under the equity method as the Registrants are not the primary beneficiaries.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

DTE Energy has variable interests in VIEs through certain of its long-term purchase and sale contracts. DTE Electric has variable interests in VIEs through certain of its long-term purchase contracts. As of September 30, 2018 , the carrying amount of assets and liabilities in DTE Energy's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase and sale contracts are predominantly related to working capital accounts and generally represent the amounts owed by or to DTE Energy for the deliveries associated with the current billing cycle under the contracts. As of September 30, 2018 , the carrying amount of assets and liabilities in DTE Electric's Consolidated Statements of Financial Position that relate to its variable interests under long-term purchase contracts are predominantly related to working capital accounts and generally represent the amounts owed by DTE Electric for the deliveries associated with the current billing cycle under the contracts. The Registrants have not provided any significant form of financial support associated with these long-term contracts. There is no significant potential exposure to loss as a result of DTE Energy's variable interests through these long-term purchase and sale contracts. In addition, there is no significant potential exposure to loss as a result of DTE Electric's variable interests through these long-term purchase contracts.

The maximum risk exposure for consolidated VIEs is reflected on the Registrants' Consolidated Statements of Financial Position and, for DTE Energy, in Note 11 to the Consolidated Financial Statements, " Commitments and Contingencies ," related to the REF guarantees and indemnities. For non-consolidated VIEs, the maximum risk exposure of the Registrants is generally limited to their investment, notes receivable, future funding commitments, and amounts which DTE Energy has guaranteed. See Note 11 to the Consolidated Financial Statements, " Commitments and Contingencies ," for further discussion of the NEXUS guarantee arrangements.

The following table summarizes the major Consolidated Statements of Financial Position items for consolidated VIEs as of September 30, 2018 and December 31, 2017 . All assets and liabilities of a consolidated VIE are presented where it has been determined that a consolidated VIE has either (1) assets that can be used only to settle obligations of the VIE or (2) liabilities for which creditors do not have recourse to the general credit of the primary beneficiary. VIEs, in which DTE Energy holds a majority voting interest and is the primary beneficiary, that meet the definition of a business and whose assets can be used for purposes other than the settlement of the VIE's obligations have been excluded from the table below.

Amounts for DTE Energy's consolidated VIEs are as follows:



	September 30, 2018						December 31, 2017
	SGG ^(a)		Other		Total		SGG ^(a)		Other		Total
	(In millions)
ASSETS
Cash and cash equivalents	$	23	$	15	$	38	$	23	$	14	$	37
Restricted cash	—		4		4		—		8		8
Accounts receivable	9		32		41		11		42		53
Inventories	3		62		65		3		114		117
Property, plant, and equipment, net	392		50		442		400		75		475
Goodwill	25		—		25		25		—		25
Intangible assets	561		—		561		572		—		572
Other current and long-term assets	1		—		1		4		—		4
	$	1,014	$	163	$	1,177	$	1,038	$	253	$	1,291

LIABILITIES
Accounts payable and accrued current liabilities	$	2	$	30	$	32	$	26	$	47	$	73
Current portion long-term debt, including capital leases	—		—		—		—		4		4
Mortgage bonds, notes, and other	—		—		—		—		1		1
Other current and long-term liabilities	7		6		13		1		16		17
	$	9	$	36	$	45	$	27	$	68	$	95

_____________________________________

(a) Amounts shown are 100% of SGG's assets and liabilities, of which DTE Energy owns 55% .

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Amounts for DTE Energy's non-consolidated VIEs are as follows:



	September 30, 2018		December 31, 2017
	(In millions)
Investments in equity method investees	$	1,342	$	811
Notes receivable	$	18	$	17
Future funding commitments	$	135	$	598

NOTE 2 — SIGNIFICANT ACCOUNTING POLICIES

Other Income

The following is a summary of DTE Energy's Other income:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions)
Equity earnings of equity method investees	$	46	$	26	$	99	$	77
Income from REF entities	27		20		75		60
Contract services	11		9		43		17
Allowance for equity funds used during construction	7		5		20		17
Gains from equity securities	5		6		6		19
Other	3		8		19		14
	$	99	$	74	$	262	$	204

The following is a summary of DTE Electric's Other income:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions)
Contract services	$	11	$	9	$	44	$	18
Allowance for equity funds used during construction	5		4		14		14
Gains from equity securities allocated from DTE Energy	5		6		6		19
Other	2		2		8		6
	$	23	$	21	$	72	$	57

Changes in Accumulated Other Comprehensive Income (Loss)

For the three and nine months ended September 30, 2018 and 2017 , reclassifications out of Accumulated other comprehensive income (loss) for the Registrants were not material. Changes in Accumulated other comprehensive income (loss) are presented in DTE Energy's Consolidated Statements of Changes in Equity and DTE Electric's Consolidated Statements of Changes in Shareholder's Equity. For further discussion regarding changes in Accumulated other comprehensive income (loss), see Note 3 to the Consolidated Financial Statements, " New Accounting Pronouncements ."

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Income Taxes

The 2018 estimated annual effective tax rates for DTE Energy and DTE Electric are 12% and 22% , respectively. These tax rates are affected by estimated annual permanent items, including AFUDC equity, production tax credits, and other flow-through items, as well as discrete items that may occur in any given period, but are not consistent from period to period.

The interim effective tax rate of the Registrants are as follows:



	Effective Tax Rate
	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
DTE Energy	9	%	22	%	12	%	22	%
DTE Electric	21	%	35	%	22	%	35	%

The 13% decrease and the 10% decrease in DTE Energy's effective tax rate for the three and nine months ended September 30, 2018 and 2017 , respectively, was primarily due to the reduction of the corporate tax rate from 35% to 21%, which became effective in 2018.

The decrease in the effective tax rate for the three months ended September 30, 2018 was also impacted by an increase in annual production tax credits, offset by a $20 million valuation allowance for the AMT credit carryover. The decrease in the effective tax rate for the nine months ended September 30, 2018 was also impacted by an increase in annual production tax credits, partially offset by true-up adjustments to the remeasurement of deferred taxes in 2018 of $21 million , $20 million valuation allowance for the AMT credit carryover, a reduction of excess tax benefits on stock-based compensation and other adjustments. For further discussion regarding the true-up adjustments, and the valuation allowance, see Note 3 to the Consolidated Financial Statements, " New Accounting Pronouncements ."

The 14% decrease and the 13% decrease in DTE Electric's effective tax rate for the three and nine months ended September 30, 2018 and 2017 , respectively, was primarily due to the reduction of the corporate tax rate from 35% to 21%, which became effective in 2018. The decrease in the effective tax rate for the nine months ended September 30, 2018 was partially offset by true-up adjustments to the remeasurement of deferred taxes in 2018 of $7 million .

DTE Energy's total amount of unrecognized tax benefits as of September 30, 2018 was $8 million , which if recognized, would favorably impact its effective tax rate. DTE Electric's total amount of unrecognized tax benefits as of September 30, 2018 was $10 million , which if recognized, would favorably impact its effective tax rate. The Registrants do not anticipate any material changes to the unrecognized tax benefits in the next twelve months.

DTE Electric had income tax payables of $4 million with DTE Energy at September 30, 2018 and income tax receivables with DTE Energy of $12 million at December 31, 2017 .

Unrecognized Compensation Costs

As of September 30, 2018 , DTE Energy had $86 million of total unrecognized compensation cost related to non-vested stock incentive plan arrangements. That cost is expected to be recognized over a weighted-average period of 1.29 years .

Allocated Stock-Based Compensation

DTE Electric received an allocation of costs from DTE Energy associated with stock-based compensation of $11 million and $10 million for the three months ended September 30, 2018 and 2017, respectively , while such allocation was $27 million and $28 million for the nine months ended September 30, 2018 and 2017, respectively .

Cash, Cash Equivalents, and Restricted Cash

Cash and cash equivalents include cash on hand, cash in banks, and temporary investments purchased with remaining maturities of three months or less. Restricted cash consists of funds held to satisfy requirements of certain debt and DTE Energy partnership operating agreements. Restricted cash designated for interest and principal payments within one year is classified as a Current Asset.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following is a table that provides a reconciliation of DTE Energy's Cash and cash equivalents as well as Restricted cash reported within the Consolidated Statements of Financial Position that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows:



	September 30,		December 31,
	2018		2017
	(In millions)
Cash and cash equivalents	$	84	$	66
Restricted cash	20		23
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows	$	104	$	89

NOTE 3 — NEW ACCOUNTING PRONOUNCEMENTS

Recently Adopted Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), as amended . The objectives of this ASU are to improve upon revenue recognition requirements by providing a single comprehensive model to determine the measurement of revenue and timing of recognition. The core principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. This ASU also required expanded qualitative and quantitative disclosures regarding the nature, amount, timing, and uncertainty of revenues and cash flows arising from contracts with customers. The standard is to be applied retrospectively. The Registrants adopted the standard effective January 1, 2018, using the modified retrospective approach. Under the modified retrospective approach, the information for periods prior to the adoption date has not been restated and continues to be reported under the accounting standards in effect for those periods. As permitted under the standard, the Registrants have elected to apply the guidance only to those contracts that were not completed at January 1, 2018, and have elected not to restate the impacts of any contract modifications made prior to the earliest period presented.

The adoption of the ASU did not have a significant impact on the Registrants' financial position or results of operations, but required additional disclosures for revenue. See Note 4 to the Consolidated Financial Statements, " Revenue ."

In March 2017, the FASB issued ASU No. 2017-07, Compensation — Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The amendments in this update required that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside of income from operations. The amendments in this update also allow only the service cost component to be eligible for capitalization when applicable. The Registrants adopted the standard effective January 1, 2018. The standard has been applied retrospectively for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit cost in the income statement and prospectively for the capitalization of the service cost component of net periodic pension cost and net periodic postretirement benefit in assets. As permitted by the standard, the Registrants have used benefit cost amounts disclosed for prior periods as the basis for retrospective application in the income statement. As a result of regulatory mechanisms, the impact to the Consolidated Financial Statements was not material for the three and nine months ended September 30, 2018 .

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments — Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , as amended. The new guidance is intended to improve the recognition and measurement of financial instruments. The guidance primarily impacts accounting for equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) and financial liabilities under the fair value option. The guidance requires equity investments to be generally measured at fair value, with subsequent changes in fair value recognized in net income. The guidance requires entities to make a cumulative-effect adjustment to the Statements of Financial Position as of the beginning of the first reporting period in which the guidance is effective. The Registrants adopted the standard effective January 1, 2018. Upon adoption, DTE Energy and DTE Electric recorded a cumulative-effect adjustment to reclassify $5 million and $3 million of unrealized gains from Accumulated other comprehensive income (loss) to Retained earnings, respectively.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740): Amendments to SEC paragraphs pursuant to SEC Staff Accounting Bulletin No. 118 . The Amendments in this update add various SEC paragraphs pursuant to the issuance of SEC Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (SAB 118) . SAB 118 directs taxpayers to consider the implications of the TCJA as provisional when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. As described in Note 10 to the Consolidated Financial Statements, "Income Taxes," within the combined DTE Energy and DTE Electric 2017 Annual Report on Form 10-K and in accordance with SAB 118, the Registrants recorded amounts that were considered provisional. During the nine months ended September 30, 2018 , DTE Energy and DTE Electric recorded true-up adjustments to the remeasurement of deferred taxes of $21 million and $7 million , respectively. The impact of the true-up adjustments was an increase in Income Tax Expense, of which $16 million was attributable to the regulated utilities and offset to Regulatory liabilities. The true-up adjustments were a result of further analysis for items subject to further consideration at December 31, 2017, under SAB 118 and primarily related to timing differences not recoverable from DTE Electric and DTE Gas customers. Additionally, during the three and nine months ended September 30, 2018 , DTE Energy recorded a valuation allowance of $20 million against AMT credits that are expected to be subject to sequestration when refunded in accordance with TCJA. This adjustment increased Income Tax Expense and reduced the deferred tax asset related to AMT credits determined to be unrealizable. The valuation allowance adjustment was the result of further analysis for items subject to further consideration at December 31, 2017 under SAB 118. The Registrants will continue to analyze the amounts throughout 2018, which may result in additional changes.

Recently Issued Pronouncements

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), as amended. This guidance requires a lessee to account for leases as finance or operating leases, and disclose key information about leasing arrangements. Both types of leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability on its balance sheet, with differing methodology for income statement recognition, depending on the lease classification. The Registrants will adopt the standard on January 1, 2019. The standard allows lessees and lessors to apply either, 1) a modified retrospective approach for leases existing or entered into after the beginning of the earliest comparative period in the Consolidated Financial Statements, or 2) a prospective transition approach for leases existing as of January 1, 2019 with a cumulative effect adjustment to be recorded to retained earnings. The Registrants plan to apply the standard on a prospective basis. The Registrants expect to elect the package of practical expedients allowing entities to not reassess whether an agreement is a lease, to carryforward the existing lease classification, and to not reassess initial direct costs associated with existing leases. The Registrants also plan to elect to exclude leases from the balance sheet that are for a period of one year or less, as well as, the practical expedient allowing entities to not evaluate land easements under the new guidance at adoption if they were not previously accounted for as leases.

A third-party software tool is being implemented that will assist with the initial adoption and ongoing compliance of the standard. Preliminary system configuration has been completed and testing is in progress. The Registrants are continuing procedures to ensure all leases are captured, as well as, evaluating and implementing, new business processes, internal controls, and accounting policies. In addition, the Registrants are monitoring utility industry implementation issues for purchase power agreements, pipeline laterals, and other industry specific arrangements. While the Registrants expect an increase in assets and liabilities, as well as additional disclosures, they are still assessing the impact of this ASU on their Consolidated Financial Statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The amendments in this update replace the incurred loss impairment methodology in current generally accepted accounting principles with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Entities will apply the new guidance as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The ASU is effective for the Registrants beginning after December 15, 2019, and interim periods therein. Early adoption is permitted. The Registrants are currently assessing the impact of this standard on their Consolidated Financial Statements.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

In February 2018, the FASB issued ASU No. 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the TCJA. The amendments in this update also require entities to disclose their accounting policy for releasing income tax effects from accumulated other comprehensive income. The ASU is effective for the Registrants for fiscal years beginning after December 15, 2018, and interim periods therein. Early adoption is permitted. The Registrants are currently assessing the impact of this standard on their Consolidated Financial Statements.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement . The amendments in this update modify the disclosure requirements on fair value measurements in Topic 820. The ASU is effective for the Registrants for fiscal years beginning after December 15, 2019, and interim periods therein. Early adoption is permitted. The Registrants are currently assessing the impact of this standard on their Consolidated Financial Statements.

In August 2018, the FASB issued ASU No. 2018-14, Compensation — Retirement Benefits — Defined Benefit Plans (Subtopic 715-20): Disclosure Framework — Changes to the Disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans . The amendments in this update modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The ASU is effective for the Registrants for fiscal years ending after December 15, 2020. Early adoption is permitted. The Registrants are currently assessing the impact of this standard on their Consolidated Financial Statements.

In August 2018, the FASB issued ASU No. 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract . The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The ASU is effective for the Registrants for fiscal years beginning after December 15, 2019, and interim periods therein. Early adoption is permitted. The Registrants are currently assessing the impact of this standard on their Consolidated Financial Statements.

NOTE 4 — REVENUE

Significant Accounting Policy

Upon the adoption of Topic 606, revenue is measured based upon the consideration specified in a contract with a customer at the time when performance obligations are satisfied. Under Topic 606, a performance obligation is a promise in a contract to transfer a distinct good or service or a series of distinct goods or services to the customer. The Registrants recognize revenue when performance obligations are satisfied by transferring control over a product or service to a customer. The Registrants have determined control to be transferred when the product is delivered or the service is provided to the customer. For the three and nine months ended September 30, 2018 , recognition of revenue for the Registrants subsequent to the adoption of Topic 606 is substantially similar in amount and approach to that prior to adoption.

Rates for DTE Electric and DTE Gas include provisions to adjust billings for fluctuations in fuel and purchased power costs, cost of natural gas, and certain other costs. Revenues are adjusted for differences between actual costs subject to reconciliation and the amounts billed in current rates. Under or over recovered revenues related to these cost recovery mechanisms are included in Regulatory assets or liabilities on the Registrants' Consolidated Statements of Financial Position and are recovered or returned to customers through adjustments to the billing factors.

For discussion of derivative contracts, see Note 8 to the Consolidated Financial Statements, " Financial and Other Derivative Instruments ."

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Disaggregation of Revenue

The following is a summary of revenues disaggregated by segment for DTE Energy:



	Three Months Ended September 30,		Nine Months Ended September 30,
	2018		2018
	(In millions)
Electric ^(a)
Residential	$	773	$	1,943
Commercial	495		1,370
Industrial	173		527
Other	80		162
Total Electric operating revenues ^(b)	$	1,521	$	4,002

Gas
Gas sales	$	89	$	726
End User Transportation	34		168
Intermediate Transportation	9		38
Other	32		37
Total Gas operating revenues ^(c)	$	164	$	969

Other segment operating revenues
Gas Storage and Pipelines	$	122	$	363
Power and Industrial Projects ^(d)	$	612	$	1,717
Energy Trading ^(e)	$	1,332	$	3,994

_______________________________________


(a)	Revenues under the Electric segment generally represent those of DTE Electric.


(b)	Includes $6 million and $15 million of other revenues which are outside the scope of Topic 606 for the three and nine months ended September 30, 2018 , respectively.


(c)	Includes a reduction of $4 million under Alternative Revenue Programs for the nine months ended September 30, 2018 , and $2 million and $6 million of other revenues, which are both outside the scope of Topic 606 for the three and nine months ended September 30, 2018 , respectively.

(d)

Includes revenues outside the scope of Topic 606 primarily related to $37 million and $93 million of contracts accounted for as leases for the three and nine months ended September 30, 2018 , respectively. During the third quarter 2018, DTE Energy revised the classification of certain amounts totaling $788 million previously disclosed as lease revenues for the six months ended June 30, 2018 to be within the scope of Topic 606. This change had no impact to the Consolidated Statements of Operations, Financial Position, or Cash Flows.


(e)	Includes revenues outside the scope of Topic 606 primarily related to $1.1 billion and $3.2 billion of derivatives for the three and nine months ended September 30, 2018 , respectively.

Nature of Goods and Services

The following is a description of principal activities, separated by reportable segments, from which DTE Energy generates revenue. For more detailed information about reportable segments, see Note 13 to the Consolidated Financial Statements, “ Segment and Related Information .”

The Registrants have contracts with customers which may contain more than one performance obligation. When more than one performance obligation exists in a contract, the consideration under the contract is allocated to the performance obligations based on the relative standalone selling price. DTE Energy generally determines standalone selling prices based on the prices charged to customers or the use of the adjusted market assessment approach. The adjusted market assessment approach involves the evaluation of the market in which DTE Energy sells goods or services and estimating the price that a customer in that market would be willing to pay.

Under Topic 606, when a customer simultaneously receives and consumes the product or service provided, revenue is considered to be recognized over time. Alternatively, if it is determined that the criteria for recognition of revenue over time is not met, the revenue is considered to be recognized at a point in time.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Electric

Electric consists principally of DTE Electric. Electric revenues are primarily comprised of the supply and delivery of electricity, and related capacity. Revenues are primarily associated with cancelable contracts, with the exception of certain long-term contracts with commercial and industrial customers. Revenues, including estimated unbilled amounts, are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. The Registrants have determined that the above methods represent a faithful depiction of the transfer of control to the customer. Unbilled revenues are typically determined utilizing approved tariff rates and estimated meter volumes. Estimated unbilled amounts recognized in revenue are subject to adjustment in the following reporting period as actual volumes by customer class are known. Revenues are typically subject to tariff rates based upon customer class and type of service, and are billed and received monthly. Tariff rates are determined by the MPSC on a per unit or monthly basis.

Gas

Gas consists principally of DTE Gas. Gas revenues are primarily comprised of the supply and delivery of natural gas, and other services including storage, transportation, and appliance maintenance. Revenues are primarily associated with cancelable contracts with the exception of certain long-term contracts with commercial and industrial customers. Revenues, including estimated unbilled amounts, are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Unbilled revenues are typically determined using both estimated meter volumes and estimated usage based upon the number of unbilled days and historical temperatures. Estimated unbilled amounts recognized in revenue are subject to adjustment in the following reporting period as actual volumes by customer class and service type are known. Revenues are typically subject to tariff rates or other rates subject to regulatory oversight and are billed and received monthly. Tariff rates are determined by the MPSC on a per unit or monthly basis.

Gas Storage and Pipelines

Gas Storage and Pipelines revenues generally consist of services related to the gathering, transportation, and storage of natural gas. Contracts are primarily long-term in nature. Revenues, including estimated unbilled amounts, are generally recognized over time based upon services provided or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Revenues are typically billed and received monthly. Pricing for such revenues may consist of demand rates, commodity rates, transportation rates, and other associated fees. Consideration may consist of both fixed and variable components. Generally, uncertainties in the variable consideration components are resolved and revenues are known at the time of recognition.

Power and Industrial Projects

Power and Industrial Projects revenues include contracts accounted for as leases which are outside of the scope of Topic 606. For performance obligations within the scope of Topic 606, the timing of revenue recognition is dependent upon when control over the associated product or service is transferred.

Revenues at Power and Industrial Projects, within the scope of Topic 606, generally consist of sales of refined coal, coal, blast furnace coke, coke oven gas, electricity, equipment maintenance services, and other energy related products and services. Revenues, including estimated unbilled amounts, for the sale of blast furnace coke are generally recognized at a point in time when the product is delivered, which represents the transfer of control to the customer. Other revenues are generally recognized over time based upon services provided or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Market based pricing structures exist in such contracts including adjustments for consumer price or other indices. Consideration may consist of both fixed and variable components. Generally, uncertainties in the variable consideration components are resolved and revenues are known at the time of recognition. Billing terms vary and are generally monthly with payment terms typically within 30 days following billing.

Energy Trading

Energy Trading revenues consist primarily of derivative contracts outside of the scope of Topic 606. For performance obligations within the scope of Topic 606, the timing of revenue recognition is dependent upon when control over the associated product or service is transferred.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Revenues, including estimated unbilled amounts, within the scope of Topic 606 arising from the sale of natural gas, electricity, power capacity, and other energy related products are generally recognized over time based upon volumes delivered or through the passage of time ratably based upon providing a stand-ready service. DTE Energy has determined that the above methods represent a faithful depiction of the transfer of control to the customer. Revenues are known at the time of recognition. Payment for the aforementioned revenues is generally due from customers in the month following delivery.

Revenues associated with RECs are recognized at a point in time when control of the RECs are transferred to the customer which is deemed to be when the subject RECs are entered for transfer to the customer in the applicable regulatory tracking system. Revenues associated with RECs under a wholesale full requirements power contract are deferred until control has been transferred. The deferred revenues represent a contract liability for which payment has been received and the amounts have been estimated using the adjusted market assessment approach. With the exception of RECs, generally all other performance obligations associated with wholesale full requirements power contracts are satisfied over time in conjunction with the delivery of power. At the time power is delivered, DTE Energy may not have control over the RECs as the RECs are not self-generated and may not yet have been procured resulting in deferred revenues.

Deferred Revenue

The following is a summary of deferred revenue activity:



	DTE Energy
	(In millions)
Beginning Balance, January 1, 2018	$	56
Increases due to cash received or receivable, excluding amounts recognized as revenue during the period	37
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(30		)
Ending Balance, September 30, 2018	$	63

The deferred revenues at DTE Energy generally represent amounts paid by or receivable from customers for which the associated performance obligation has not yet been satisfied.

Deferred revenues include amounts associated with REC performance obligations under certain wholesale full requirements power contracts. Deferred revenues associated with RECs are recognized as revenue when control of the RECs has transferred.

Other performance obligations associated with deferred revenues include providing products and services related to customer prepayments. Deferred revenues associated with these products and services are recognized when control has transferred to the customer.

The following table represents deferred revenue amounts for DTE Energy that are expected to be recognized as revenue in future periods:



	DTE Energy
	(In millions)
2018	$	8
2019	27
2020	1
2021	5
2022	7
2023 and thereafter	15
	$	63

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Transaction Price Allocated to the Remaining Performance Obligations

In accordance with optional exemptions available under Topic 606, the Registrants did not disclose the value of unsatisfied performance obligations for (1) contracts with an original expected length of one year or less, (2) with the exception of fixed consideration, contracts for which revenue is recognized at the amount to which the Registrants have the right to invoice for goods provided and services performed, and (3) contracts for which variable consideration relates entirely to an unsatisfied performance obligation.

Such contracts consist of varying types of performance obligations across the segments, including the supply and delivery of energy related products and services. Contracts with variable volumes and/or variable pricing, including those with pricing provisions tied to a consumer price or other index, have also been excluded as the related consideration under the contract is variable at inception of the contract. Contract lengths vary from cancelable to multi-year.

The Registrants expect to recognize revenue for the following amounts related to fixed consideration associated with remaining performance obligations in each of the future periods noted:



	DTE Energy		DTE Electric
	(In millions)
2018	$	50	$	4
2019	245		8
2020	201		—
2021	157		—
2022	120		—
2023 and thereafter	411		—
Total	$	1,184	$	12

Other Matters

DTE Energy has recognized charges of $39 million and $95 million related to expense recognized for estimated uncollectible accounts receivable for the three and nine months ended September 30, 2018 , respectively. DTE Electric has recognized charges of $26 million and $57 million related to expense recognized for estimated uncollectible accounts receivable for the three and nine months ended September 30, 2018 , respectively.

NOTE 5 — REGULATORY MATTERS

2017 Electric Rate Case Filing

DTE Electric filed a rate case with the MPSC on April 19, 2017 requesting an increase in base rates of $231 million based on a projected twelve-month period ending October 31, 2018. On November 1, 2017, DTE Electric self-implemented a base rate increase of $125 million . On April 18, 2018, the MPSC issued an order approving an annual revenue increase of $65.2 million for service rendered on or after May 1, 2018. The MPSC authorized a return on equity of 10.0% . On June 28, 2018, the MPSC issued an order on a rehearing granting in part and denying in part, petitions for rehearings of DTE Electric and other intervenors. As a result, the approved addition to base rates increased from $65.2 million to $74.4 million . In August 2018, DTE Electric filed to refund its customers $26.2 million , inclusive of interest, based on their pro rata share of the revenue collected through the self-implementation surcharge in effect from November 1, 2017 to May 1, 2018. DTE Electric has recorded a refund liability as of September 30, 2018 . The refund is proposed to be in effect commencing on November 1, 2018.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

2018 Electric Rate Case Filing

DTE Electric filed a rate case with the MPSC on July 6, 2018 requesting an increase in base rates of $328 million based on a projected twelve-month period ending April 30, 2020. The requested increase in base rates is primarily due to an increase in net plant resulting from infrastructure investments, depreciation expense, as requested in the 2016 DTE Main Electric Depreciation Case Filing, and reliability improvement projects. The rate filing also requests an increase in return on equity from 10.0% to 10.5% and includes projected changes in sales, operation and maintenance expenses, and working capital. In addition, the rate filing requests an Infrastructure Recovery Mechanism to recover the incremental revenue requirement associated with certain distribution, fossil generation, and nuclear generation capital expenditures through 2022. Finally, as noted in the 2017 Tax Reform section below, DTE Electric addressed Calculation C in this filing. A final MPSC order in this case is expected by May 2019.

Certificate of Necessity

On July 31, 2017, DTE Electric filed a request for authority to build a 1,100 megawatt natural gas fueled combined cycle generation facility at DTE Electric's Belle River Power Plant. DTE Electric requested the MPSC to issue three CONs for the following: (1) power supplied by the proposed project is needed, (2) the size, fuel type, and other design characteristics of the proposed project represent the most reasonable and prudent means of meeting the power need, and (3) the estimated capital costs of $989 million for the proposed project will be recoverable in rates from DTE Electric's customers. The MPSC issued an order on April 27, 2018 approving DTE Electric's request for the three CONs with recoverable amounts through rates up to $951.8 million .

2017 Gas Rate Case Filing

DTE Gas filed a rate case with the MPSC on November 22, 2017 requesting an increase in base rates of $85.1 million based on a projected twelve-month period ending September 30, 2019. The requested increase in base rates was primarily due to an increase in net plant. The rate filing also requested an increase in return on equity from 10.1% to 10.5% and included projected changes in sales, operations and maintenance expenses, and working capital. On May 24, 2018, DTE Gas reduced its initial requested increase in base rates to $38.1 million , primarily due to the effects of the TCJA on the original request. To mitigate the impact to its customers resulting from ASU No. 2017-07, Compensation — Retirement Benefits (Topic 715), DTE Gas suggested regulatory accounting treatment, consistent with the methodology approved by the MPSC in the 2017 DTE Electric Rate Case order. As such, beginning January 1, 2018, pension and postretirement cost components previously included as capital overhead are being deferred. For further discussion of ASU No. 2017-07, see Note 3 to the Consolidated Financial Statements, " New Accounting Pronouncements ." On September 13, 2018, the MPSC issued an order approving an annual revenue increase of $9 million for services rendered on or after October 1, 2018. The MPSC authorized a return on equity of 10% . Refer to the 2017 Tax Reform section below for further detail regarding the impact of the TCJA Credit A filing for DTE Gas.

2017 Tax Reform

On December 27, 2017, the MPSC issued an order to consider changes in the rates of all Michigan rate-regulated utilities to reflect the effects of the federal TCJA. On January 19, 2018, DTE Electric and DTE Gas filed information with the MPSC regarding the potential change in revenue requirements due to the TCJA effective January 1, 2018, and outlined their recommended method to flow the current and deferred tax benefits of those impacts to ratepayers.

On February 22, 2018, the MPSC issued an order in this case requiring utilities, including DTE Electric and DTE Gas, to follow a 3-step approach of credits and calculations. The first step is to establish Credit A, through contested cases. Credit A is a going-forward tax credit to reflect the reduction of the corporate tax rate from 35% to 21%. DTE Gas submitted its Credit A filing on March 28, 2018, reflecting a reduction in revenues of $38.2 million . The MPSC approved the $38.2 million reduction on May 30, 2018, effective July 1, 2018. With approval of the DTE Gas Rate Order on September 13, 2018, effective October 1, 2018, this separate Credit A was terminated. DTE Electric filed its Credit A application on May 18, 2018, reflecting a reduction in revenues of $157 million . On July 24, 2018, the MPSC issued an order approving a settlement in DTE Electric's Credit A filing reflecting a reduction in revenues of $157 million . Rates reflecting this reduction were effective August 1, 2018.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The second step is to establish Credit B, through contested cases. Credit B is a backward-looking tax credit to reflect the reduction of the corporate rate of 35% to 21%, for the period January 1, 2018 up to the date Credit A is implemented. The Credit B filing is required within sixty days after Credit A is implemented. For Credit B, DTE Electric and DTE Gas have been deferring the impact of the reduction to the corporate tax rate since January 1, 2018. DTE Gas submitted its Credit B filing on July 30, 2018, reflecting a $25 million refund effective January 2019 through June 2019. On October 24, 2018, the MPSC issued an order approving the refund in DTE Gas' Credit B filing. DTE Electric submitted its Credit B filing on September 21, 2018, reflecting a $93 million refund effective January 2019 through June 2019.

The third step is to perform Calculation C to address all remaining issues relative to the new tax law, which is primarily the remeasurement of deferred taxes and how the amounts deferred as Regulatory liabilities will flow to ratepayers. DTE Gas is required to file Calculation C no later than November 16, 2018. DTE Electric addressed Calculation C in its general rate case filed July 6, 2018.

NOTE 6 — EARNINGS PER SHARE

Basic earnings per share is calculated by dividing the net income, adjusted for income allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the dilution that would occur if any potentially dilutive instruments were exercised or converted into common shares. DTE Energy’s participating securities are restricted shares under the stock incentive program that contain rights to receive non-forfeitable dividends. Equity units, performance shares, and stock options do not receive cash dividends; as such, these awards are not considered participating securities.

The following is a reconciliation of DTE Energy's basic and diluted income per share calculation:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	334	$	270	$	929	$	847
Less: Allocation of earnings to net restricted stock awards	1		1		2		2
Net income available to common shareholders — basic	$	333	$	269	$	927	$	845

Average number of common shares outstanding — basic	182		179		181		179
Basic Earnings per Common Share	$	1.84	$	1.51	$	5.13	$	4.72

Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	334	$	270	$	929	$	847
Less: Allocation of earnings to net restricted stock awards	1		1		2		2
Net income available to common shareholders — diluted	$	333	$	269	$	927	$	845

Average number of common shares outstanding — diluted	182		179		181		179
Diluted Earnings per Common Share ^(a)	$	1.84	$	1.51	$	5.13	$	4.72

_______________________________________


(a)	The 2016 Equity Units excluded from the calculation of diluted EPS were approximately 6.2 million for the three months ended September 30, 2018 and 2017 , and 6.4 million for the nine months ended September 30, 2018 and 2017 , as the dilutive stock price threshold was not met.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

NOTE 7 — FAIR VALUE

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated, or generally unobservable inputs. The Registrants make certain assumptions they believe that market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Registrants and their counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which was immaterial at September 30, 2018 and December 31, 2017 . The Registrants believe they use valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs.

A fair value hierarchy has been established that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation of the asset or liability and its placement within the fair value hierarchy. The Registrants classify fair value balances based on the fair value hierarchy defined as follows:


•	Level 1 — Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Registrants have the ability to access as of the reporting date.


•	Level 2 — Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.


•	Level 3 — Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and subject to cost-benefit constraints.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following table presents assets and liabilities for DTE Energy measured and recorded at fair value on a recurring basis:



	September 30, 2018																	December 31, 2017
	Level 1			Level 2			Level 3			Other ^(a)		Netting ^(b)			Net Balance			Level 1			Level 2			Level 3			Other ^(a)		Netting ^(b)			Net Balance
	(In millions)
Assets
Cash equivalents ^(c)	$	33		$	3		$	—		$	—	$	—		$	36		$	16		$	3		$	—		$	—	$	—		$	19
Nuclear decommissioning trusts
Equity securities	973			—			—			—		—			973			978			—			—			—		—			978
Fixed income securities	5			519			—			—		—			524			18			477			—			—		—			495
Private equity securities	—			—			—			11		—			11			—			—			—			5		—			5
Cash equivalents	17			—			—			—		—			17			14			—			—			—		—			14
Other investments ^(d)
Equity securities	125			—			—			—		—			125			118			—			—			—		—			118
Fixed income securities	69			—			—			—		—			69			72			—			—			—		—			72
Cash equivalents	4			—			—			—		—			4			4			—			—			—		—			4
Derivative assets
Commodity contracts
Natural gas	75			72			53			—		(139		)	61			148			112			97			—		(256		)	101
Electricity	—			190			44			—		(173		)	61			—			243			42			—		(241		)	44
Other	1			—			6			—		(1		)	6			—			—			9			—		—			9
Foreign currency exchange contracts	—			1			—			—		(1		)	—			—			1			—			—		(1		)	—
Total derivative assets	76			263			103			—		(314		)	128			148			356			148			—		(498		)	154
Total	$	1,302		$	785		$	103		$	11	$	(314	)	$	1,887		$	1,368		$	836		$	148		$	5	$	(498	)	$	1,859
Liabilities
Derivative liabilities
Commodity contracts
Natural gas	$	(69	)	$	(61	)	$	(99	)	$	—	$	139		$	(90	)	$	(141	)	$	(111	)	$	(126	)	$	—	$	263		$	(115	)
Electricity	—			(173		)	(54		)	—		172			(55		)	—			(245		)	(30		)	—		246			(29		)
Other	(1		)	—			—			—		1			—			—			—			(1		)	—		1			—
Foreign currency exchange contracts	—			(1		)	—			—		1			—			—			(3		)	—			—		1			(2		)
Total derivative liabilities	(70		)	(235		)	(153		)	—		313			(145		)	(141		)	(359		)	(157		)	—		511			(146		)
Total	$	(70	)	$	(235	)	$	(153	)	$	—	$	313		$	(145	)	$	(141	)	$	(359	)	$	(157	)	$	—	$	511		$	(146	)
Net Assets (Liabilities) at end of period	$	1,232		$	550		$	(50	)	$	11	$	(1	)	$	1,742		$	1,227		$	477		$	(9	)	$	5	$	13		$	1,713
Assets
Current	$	108		$	213		$	76		$	—	$	(264	)	$	133		$	157		$	298		$	104		$	—	$	(437	)	$	122
Noncurrent	1,194			572			27			11		(50		)	1,754			1,211			538			44			5		(61		)	1,737
Total Assets	$	1,302		$	785		$	103		$	11	$	(314	)	$	1,887		$	1,368		$	836		$	148		$	5	$	(498	)	$	1,859
Liabilities
Current	$	(62	)	$	(194	)	$	(86	)	$	—	$	263		$	(79	)	$	(137	)	$	(313	)	$	(108	)	$	—	$	459		$	(99	)
Noncurrent	(8		)	(41		)	(67		)	—		50			(66		)	(4		)	(46		)	(49		)	—		52			(47		)
Total Liabilities	$	(70	)	$	(235	)	$	(153	)	$	—	$	313		$	(145	)	$	(141	)	$	(359	)	$	(157	)	$	—	$	511		$	(146	)
Net Assets (Liabilities) at end of period	$	1,232		$	550		$	(50	)	$	11	$	(1	)	$	1,742		$	1,227		$	477		$	(9	)	$	5	$	13		$	1,713

_______________________________________


(a)	Amounts represent assets valued at NAV as a practical expedient for fair value.


(b)	Amounts represent the impact of master netting agreements that allow DTE Energy to net gain and loss positions and cash collateral held or placed with the same counterparties.

(c)

At September 30, 2018 , the $36 million consisted of $21 million , $4 million , and $11 million of cash equivalents included in Cash and Cash equivalents, Restricted cash, and Other investments on DTE Energy's Consolidated Statements of Financial Position, respectively. At December 31, 2017 , the $19 million consisted of $8 million and $11 million of cash equivalents included in Restricted cash and Other investments on DTE Energy's Consolidated Statements of Financial Position, respectively.


(d)	Excludes cash surrender value of life insurance investments.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following table presents assets for DTE Electric measured and recorded at fair value on a recurring basis as of:



	September 30, 2018										December 31, 2017
	Level 1		Level 2		Level 3		Other ^(a)		Net Balance		Level 1		Level 2		Level 3		Other ^(a)		Net Balance
	(In millions)
Assets
Cash equivalents ^(b)	$	8	$	3	$	—	$	—	$	11	$	8	$	3	$	—	$	—	$	11
Nuclear decommissioning trusts
Equity securities	973		—		—		—		973		978		—		—		—		978
Fixed income securities	5		519		—		—		524		18		477		—		—		495
Private equity securities	—		—				11		11		—		—		—		5		5
Cash equivalents	17		—		—		—		17		14		—		—		—		14
Other investments
Equity securities	12		—		—		—		12		11		—		—		—		11
Derivative assets — FTRs	—		—		6		—		6		—		—		9		—		9
Total	$	1,015	$	522	$	6	$	11	$	1,554	$	1,029	$	480	$	9	$	5	$	1,523

Assets
Current	$	8	$	3	$	6	$	—	$	17	$	8	$	3	$	9	$	—	$	20
Noncurrent	1,007		519		—		11		1,537		1,021		477		—		5		1,503
Total Assets	$	1,015	$	522	$	6	$	11	$	1,554	$	1,029	$	480	$	9	$	5	$	1,523

_______________________________________


(a)	Amounts represent assets valued at NAV as a practical expedient for fair value.


(b)	At September 30, 2018 , the $11 million consisted of cash equivalents included in Other investments on DTE Electric's Consolidated Statements of Financial Position. At December 31, 2017 , the $11 million consisted of cash equivalents included in Other investments on DTE Electric's Consolidated Statements of Financial Position.

Cash Equivalents

Cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value table are comprised of short-term investments and money market funds.

Nuclear Decommissioning Trusts and Other Investments

The nuclear decommissioning trusts and other investments hold debt and equity securities directly and indirectly through institutional mutual funds and commingled funds. Other assets such as private market investments are used to enhance long-term returns while improving portfolio diversification. All pricing for private market investments in this category are classified as NAV assets. Exchange-traded debt and equity securities held directly are valued using quoted market prices in actively traded markets. Non-exchange-traded fixed income securities are valued based upon quotations available from brokers or pricing services. The institutional mutual funds hold exchange-traded equity or debt securities (exchange and non-exchange traded) and are valued based on publicly available NAVs. A primary price source is identified by asset type, class, or issue for each security. The trustee monitors prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustee determines that another price source is considered preferable. The Registrants have obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, the Registrants selectively corroborate the fair value of securities by comparison of market-based price sources. Investment policies and procedures are determined by DTE Energy's Trust Investments Department which reports to DTE Energy's Vice President and Treasurer.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Derivative Assets and Liabilities

Derivative assets and liabilities are comprised of physical and financial derivative contracts, including futures, forwards, options, and swaps that are both exchange-traded and over-the-counter traded contracts. Various inputs are used to value derivatives depending on the type of contract and availability of market data. Exchange-traded derivative contracts are valued using quoted prices in active markets. The Registrants consider the following criteria in determining whether a market is considered active: frequency in which pricing information is updated, variability in pricing between sources or over time, and the availability of public information. Other derivative contracts are valued based upon a variety of inputs including commodity market prices, broker quotes, interest rates, credit ratings, default rates, market-based seasonality, and basis differential factors. The Registrants monitor the prices that are supplied by brokers and pricing services and may use a supplemental price source or change the primary price source of an index if prices become unavailable or another price source is determined to be more representative of fair value. The Registrants have obtained an understanding of how these prices are derived. Additionally, the Registrants selectively corroborate the fair value of their transactions by comparison of market-based price sources. Mathematical valuation models are used for derivatives for which external market data is not readily observable, such as contracts which extend beyond the actively traded reporting period. The Registrants have established a Risk Management Committee whose responsibilities include directly or indirectly ensuring all valuation methods are applied in accordance with predefined policies. The development and maintenance of the Registrants' forward price curves has been assigned to DTE Energy's Risk Management Department, which is separate and distinct from the trading functions within DTE Energy.

The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Energy:



	Three Months Ended September 30, 2018												Three Months Ended September 30, 2017
	Natural Gas			Electricity			Other			Total			Natural Gas			Electricity			Other			Total
	(In millions)
Net Assets (Liabilities) as of June 30	$	(25	)	$	(13	)	$	15		$	(23	)	$	(17	)	$	6		$	5		$	(6	)
Transfers into Level 3 from Level 2	—			—			—			—			—			—			—			—
Transfers from Level 3 into Level 2	—			—			—			—			—			—			—			—
Total gains (losses)
Included in earnings	(30		)	21			—			(9		)	(8		)	33			1			26
Recorded in Regulatory liabilities	—			—			(8		)	(8		)	—			—			2			2
Purchases, issuances, and settlements
Settlements	9			(18		)	(1		)	(10		)	23			(32		)	(6		)	(15		)
Net Assets (Liabilities) as of September 30	$	(46	)	$	(10	)	$	6		$	(50	)	$	(2	)	$	7		$	2		$	7
The amount of total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at September 30, 2018 and 2017 and reflected in Operating Revenues — Non-utility operations and Fuel, purchased power, and gas — non-utility in DTE Energy's Consolidated Statements of Operations	$	(31	)	$	10		$	(1	)	$	(22	)	$	(8	)	$	18		$	1		$	11

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)



	Nine Months Ended September 30, 2018												Nine Months Ended September 30, 2017
	Natural Gas			Electricity			Other			Total			Natural Gas			Electricity			Other			Total
	(In millions)
Net Assets (Liabilities) as of December 31	$	(29	)	$	12		$	8		$	(9	)	$	(96	)	$	9		$	(1	)	$	(88	)
Transfers into Level 3 from Level 2	—			—			—			—			—			—			—			—
Transfers from Level 3 into Level 2	(3		)	—			—			(3		)	—			—			—			—
Total gains (losses)
Included in earnings	(128		)	25			1			(102		)	38			45			1			84
Recorded in Regulatory liabilities	—			—			6			6			—			—			15			15
Purchases, issuances, and settlements
Settlements	114			(47		)	(9		)	58			56			(47		)	(13		)	(4		)
Net Assets (Liabilities) as of September 30	$	(46	)	$	(10	)	$	6		$	(50	)	$	(2	)	$	7		$	2		$	7
The amount of total gains (losses) included in Net Income attributed to the change in unrealized gains (losses) related to assets and liabilities held at September 30, 2018 and 2017 and reflected in Operating Revenues — Non-utility operations and Fuel, purchased power, and gas — non-utility in DTE Energy's Consolidated Statements of Operations	$	(109	)	$	4		$	(3	)	$	(108	)	$	8		$	35		$	—		$	43

The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for DTE Electric:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Net Assets as of beginning of period	$	15		$	8		$	9		$	2
Change in fair value recorded in Regulatory liabilities	(8		)	2			6			15
Purchases, issuances, and settlements
Settlements	(1		)	(6		)	(9		)	(13		)
Net Assets as of September 30	$	6		$	4		$	6		$	4
The amount of total gains (losses) included in Regulatory liabilities attributed to the change in unrealized gains (losses) related to assets held at September 30, 2018 and 2017 and reflected in DTE Electric's Consolidated Statements of Financial Position	$	(2	)	$	1		$	6		$	4

Derivatives are transferred between levels primarily due to changes in the source data used to construct price curves as a result of changes in market liquidity. Transfers in and transfers out are reflected as if they had occurred at the beginning of the period.

There were no transfers between Levels 1 and 2 for the Registrants during the three and nine months ended September 30, 2018 and 2017 , and there were no transfers from or into Level 3 for DTE Electric during the same periods.

The following tables present the unobservable inputs related to DTE Energy's Level 3 assets and liabilities:



	September 30, 2018
Commodity Contracts	Derivative Assets		Derivative Liabilities			Valuation Techniques	Unobservable Input	Range							Weighted Average
	(In millions)
Natural Gas	$	53	$	(99	)	Discounted Cash Flow	Forward basis price (per MMBtu)	$	(1.81	)	—	$	5.99	/MMBtu	$	(0.12	)/MMBtu
Electricity	$	44	$	(54	)	Discounted Cash Flow	Forward basis price (per MWh)	$	(6	)	—	$	9	/MWh	$	1	/MWh

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)



	December 31, 2017
Commodity Contracts	Derivative Assets		Derivative Liabilities			Valuation Techniques	Unobservable Input	Range							Weighted Average
	(In millions)
Natural Gas	$	97	$	(126	)	Discounted Cash Flow	Forward basis price (per MMBtu)	$	(1.10	)	—	$	9.75	/MMBtu	$	(0.03	)/MMBtu
Electricity	$	42	$	(30	)	Discounted Cash Flow	Forward basis price (per MWh)	$	(5	)	—	$	15	/MWh	$	2	/MWh

The unobservable inputs used in the fair value measurement of the electricity and natural gas commodity types consist of inputs that are less observable due in part to lack of available broker quotes, supported by little, if any, market activity at the measurement date or are based on internally developed models. Certain basis prices (i.e., the difference in pricing between two locations) included in the valuation of natural gas and electricity contracts were deemed unobservable.

The inputs listed above would have a direct impact on the fair values of the above security types if they were adjusted. A significant increase (decrease) in the basis price would result in a higher (lower) fair value for long positions, with offsetting impacts to short positions.

Fair Value of Financial Instruments

The following table presents the carrying amount and fair value of financial instruments for DTE Energy:



	September 30, 2018								December 31, 2017
	Carrying		Fair Value						Carrying		Fair Value
	Amount		Level 1		Level 2		Level 3		Amount		Level 1		Level 2		Level 3
	(In millions)
Notes receivable ^(a) , excluding capital leases	$	37	$	—	$	—	$	37	$	38	$	—	$	—	$	38
Dividends payable	$	161	$	161	$	—	$	—	$	158	$	158	$	—	$	—
Short-term borrowings	$	77	$	—	$	77	$	—	$	621	$	—	$	621	$	—
Notes payable — Other ^(b) , excluding capital leases	$	11	$	—	$	—	$	11	$	12	$	—	$	—	$	12
Long-term debt ^(c)	$	13,621	$	1,840	$	11,094	$	930	$	12,288	$	1,939	$	10,571	$	764

_______________________________________


(a)	Current portion included in Current Assets — Other on DTE Energy's Consolidated Statements of Financial Position.


(b)	Included in Current Liabilities — Other and Other Liabilities — Other on DTE Energy's Consolidated Statements of Financial Position.


(c)	Includes debt due within one year , unamortized debt discounts, and issuance costs. Excludes Capital lease obligations.

The following table presents the carrying amount and fair value of financial instruments for DTE Electric:



	September 30, 2018								December 31, 2017
	Carrying		Fair Value						Carrying		Fair Value
	Amount		Level 1		Level 2		Level 3		Amount		Level 1		Level 2		Level 3
	(In millions)
Short-term borrowings — affiliates	$	143	$	—	$	—	$	143	$	116	$	—	$	—	$	116
Short-term borrowings — other	$	51	$	—	$	51	$	—	$	238	$	—	$	238	$	—
Notes payable — Other ^(a) , excluding capital leases	$	2	$	—	$	—	$	2	$	2	$	—	$	—	$	2
Long-term debt ^(b)	$	6,537	$	—	$	6,715	$	—	$	6,017	$	—	$	6,441	$	171

_______________________________________


(a)	Included in Current Liabilities — Other and Other Liabilities — Other on DTE Electric's Consolidated Statements of Financial Position.


(b)	Includes debt due within one year , unamortized debt discounts, and issuance costs. Excludes Capital lease obligations.

For further fair value information on financial and derivative instruments, see Note 8 to the Consolidated Financial Statements, " Financial and Other Derivative Instruments ."

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Nuclear Decommissioning Trust Funds

DTE Electric has a legal obligation to decommission its nuclear power plants following the expiration of its operating licenses. This obligation is reflected as an Asset retirement obligation on DTE Electric's Consolidated Statements of Financial Position. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste.

The following table summarizes DTE Electric's fair value of the nuclear decommissioning trust fund assets:



	September 30, 2018		December 31, 2017
	(In millions)
Fermi 2	$	1,507	$	1,475
Fermi 1	3		3
Low-level radioactive waste	15		14
	$	1,525	$	1,492

The costs of securities sold are determined on the basis of specific identification. The following table sets forth DTE Electric's gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Realized gains	$	10		$	14		$	52		$	63
Realized losses	$	(7	)	$	(7	)	$	(22	)	$	(23	)
Proceeds from sale of securities	$	194		$	246		$	810		$	951

Realized gains and losses from the sale of securities and unrealized gains and losses incurred by the Fermi 2 trust are recorded to the Regulatory asset and Nuclear decommissioning liability. Realized gains and losses from the sale of securities and unrealized gains and losses on the low-level radioactive waste funds are recorded to the Nuclear decommissioning liability.

The following table sets forth DTE Electric's fair value and unrealized gains and losses for the nuclear decommissioning trust funds:



	September 30, 2018							December 31, 2017
	Fair Value		Unrealized Gains		Unrealized Losses			Fair Value		Unrealized Gains		Unrealized Losses
	(In millions)
Equity securities	$	973	$	337	$	(45	)	$	978	$	320	$	(32	)
Fixed income securities	524		5		(10		)	495		13		(3		)
Private equity securities	11		—		—			5		—		—
Cash equivalents	17		—		—			14		—		—
	$	1,525	$	342	$	(55	)	$	1,492	$	333	$	(35	)

The following table summarizes the fair value of the fixed income securities held in nuclear decommissioning trust funds by contractual maturity:



	September 30, 2018
	(In millions)
Due within one year	$	27
Due after one through five years	99
Due after five through ten years	118
Due after ten years	280
	$	524

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Other Securities

At September 30, 2018 and December 31, 2017 , the Registrants' securities, included in Other investments on the Consolidated Statements of Financial Position, were comprised primarily of money market and equity securities. For the three months ended September 30, 2018 and 2017 , gains related to equity securities were $5 million and $6 million , respectively, for the Registrants. For the nine months ended September 30, 2018 and 2017 , gains related to equity securities were $4 million and $19 million , respectively, for the Registrants. Gains or losses related to the Rabbi Trust assets are allocated from DTE Energy to DTE Electric.

NOTE 8 — FINANCIAL AND OTHER DERIVATIVE INSTRUMENTS

The Registrants recognize all derivatives at their fair value as Derivative assets or liabilities on their respective Consolidated Statements of Financial Position unless they qualify for certain scope exceptions, including the normal purchases and normal sales exception. Further, derivatives that qualify and are designated for hedge accounting are classified as either hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge); or as hedges of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). For cash flow hedges, the portion of the derivative gain or loss that is effective in offsetting the change in the value of the underlying exposure is deferred in Accumulated other comprehensive income (loss) and later reclassified into earnings when the underlying transaction occurs. Gains or losses from the ineffective portion of cash flow hedges are recognized in earnings immediately. For fair value hedges, changes in fair values for the derivative and hedged item are recognized in earnings each period. For derivatives that do not qualify or are not designated for hedge accounting, changes in fair value are recognized in earnings each period.

The Registrants’ primary market risk exposure is associated with commodity prices, credit, and interest rates. The Registrants have risk management policies to monitor and manage market risks. The Registrants use derivative instruments to manage some of the exposure. DTE Energy uses derivative instruments for trading purposes in its Energy Trading segment. Contracts classified as derivative instruments include electricity, natural gas, oil, certain coal forwards, futures, options, swaps, and foreign currency exchange contracts. Items not classified as derivatives include natural gas inventory, pipeline transportation contracts, renewable energy credits, and natural gas storage assets.

DTE Electric — DTE Electric generates, purchases, distributes, and sells electricity. DTE Electric uses forward contracts to manage changes in the price of electricity and fuel. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. Other derivative contracts are MTM and recoverable through the PSCR mechanism when settled. This results in the deferral of unrealized gains and losses as Regulatory assets or liabilities until realized.

DTE Gas — DTE Gas purchases, stores, transports, distributes, and sells natural gas, and sells storage and transportation capacity. DTE Gas has fixed-priced contracts for portions of its expected natural gas supply requirements through March 2021. Substantially all of these contracts meet the normal purchases and normal sales exception and are therefore accounted for under the accrual method. DTE Gas may also sell forward transportation and storage capacity contracts. Forward transportation and storage contracts are generally not derivatives and are therefore accounted for under the accrual method.

Gas Storage and Pipelines — This segment is primarily engaged in services related to the gathering, transportation, and storage of natural gas. Primarily fixed-priced contracts are used in the marketing and management of transportation and storage services. Generally, these contracts are not derivatives and are therefore accounted for under the accrual method.

Power and Industrial Projects — This segment manages and operates energy and pulverized coal projects, a coke battery, reduced emissions fuel projects, landfill gas recovery, and power generation assets. Primarily fixed-price contracts are used in the marketing and management of the segment assets. These contracts are generally not derivatives and are therefore accounted for under the accrual method.

Energy Trading — Commodity Price Risk — Energy Trading markets and trades electricity, natural gas physical products, and energy financial instruments, and provides energy and asset management services utilizing energy commodity derivative instruments. Forwards, futures, options, and swap agreements are used to manage exposure to the risk of market price and volume fluctuations in its operations. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Energy Trading — Foreign Currency Exchange Risk — Energy Trading has foreign currency exchange forward contracts to economically hedge fixed Canadian dollar commitments existing under natural gas and power purchase and sale contracts and natural gas transportation contracts. Energy Trading enters into these contracts to mitigate price volatility with respect to fluctuations of the Canadian dollar relative to the U.S. dollar. These derivatives are accounted for by recording changes in fair value to earnings unless hedge accounting criteria are met.

Corporate and Other — Interest Rate Risk — DTE Energy may use interest rate swaps, treasury locks, and other derivatives to hedge the risk associated with interest rate market volatility.

Credit Risk — DTE Energy maintains credit policies that significantly minimize overall credit risk. These policies include an evaluation of potential customers’ and counterparties’ financial condition, including the viability of underlying productive assets, credit rating, collateral requirements, or other credit enhancements such as letters of credit or guarantees. DTE Energy generally uses standardized agreements that allow the netting of positive and negative transactions associated with a single counterparty. DTE Energy maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends, and other information. Based on DTE Energy's credit policies and its September 30, 2018 provision for credit losses, DTE Energy’s exposure to counterparty nonperformance is not expected to have a material adverse effect on DTE Energy's Consolidated Financial Statements.

Derivative Activities

DTE Energy manages its MTM risk on a portfolio basis based upon the delivery period of its contracts and the individual components of the risks within each contract. Accordingly, it records and manages the energy purchase and sale obligations under its contracts in separate components based on the commodity (e.g. electricity or natural gas), the product (e.g. electricity for delivery during peak or off-peak hours), the delivery location (e.g. by region), the risk profile (e.g. forward or option), and the delivery period (e.g. by month and year). The following describes the categories of activities represented by their operating characteristics and key risks:

•

Asset Optimization — Represents derivative activity associated with assets owned and contracted by DTE Energy, including forward natural gas purchases and sales, natural gas transportation, and storage capacity. Changes in the value of derivatives in this category typically economically offset changes in the value of underlying non-derivative positions, which do not qualify for fair value accounting. The difference in accounting treatment of derivatives in this category and the underlying non-derivative positions can result in significant earnings volatility.


•	Marketing and Origination — Represents derivative activity transacted by originating substantially hedged positions with wholesale energy marketers, producers, end-users, utilities, retail aggregators, and alternative energy suppliers.


•	Fundamentals Based Trading — Represents derivative activity transacted with the intent of taking a view, capturing market price changes, or putting capital at risk. This activity is speculative in nature as opposed to hedging an existing exposure.


•	Other — Includes derivative activity at DTE Electric related to FTRs. Changes in the value of derivative contracts at DTE Electric are recorded as Derivative assets or liabilities, with an offset to Regulatory assets or liabilities as the settlement value of these contracts will be included in the PSCR mechanism when realized.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following table presents the fair value of derivative instruments for DTE Energy:



	September 30, 2018					December 31, 2017
	Derivative Assets		Derivative Liabilities			Derivative Assets		Derivative Liabilities
	(In millions)
Derivatives not designated as hedging instruments
Commodity contracts
Natural gas	$	200	$	(229	)	$	357	$	(378	)
Electricity	234		(227		)	285		(275		)
Other	7		(1		)	9		(1		)
Foreign currency exchange contracts	1		(1		)	1		(3		)
Total derivatives not designated as hedging instruments	$	442	$	(458	)	$	652	$	(657	)

Current	$	361	$	(342	)	$	540	$	(558	)
Noncurrent	81		(116		)	112		(99		)
Total derivatives	$	442	$	(458	)	$	652	$	(657	)

The following table presents the fair value of derivative instruments for DTE Electric:



	September 30, 2018		December 31, 2017
	(In millions)
FTRs — Other current assets	$	6	$	9
Total derivatives not designated as hedging instruments	$	6	$	9

Certain of DTE Energy's derivative positions are subject to netting arrangements which provide for offsetting of asset and liability positions as well as related cash collateral. Such netting arrangements generally do not have restrictions. Under such netting arrangements, DTE Energy offsets the fair value of derivative instruments with cash collateral received or paid for those contracts executed with the same counterparty, which reduces DTE Energy's Total Assets and Liabilities. Cash collateral is allocated between the fair value of derivative instruments and customer accounts receivable and payable with the same counterparty on a pro-rata basis to the extent there is exposure. Any cash collateral remaining, after the exposure is netted to zero, is reflected in Accounts receivable and Accounts payable as collateral paid or received, respectively.

DTE Energy also provides and receives collateral in the form of letters of credit which can be offset against net Derivative assets and liabilities as well as Accounts receivable and payable. DTE Energy had issued letters of credit of $4 million outstanding at September 30, 2018 and December 31, 2017 , which could be used to offset net Derivative liabilities. Letters of credit received from third parties which could be used to offset net Derivative assets were $6 million and $4 million at September 30, 2018 and December 31, 2017 , respectively. Such balances of letters of credit are excluded from the tables below and are not netted with the recognized assets and liabilities in DTE Energy's Consolidated Statements of Financial Position.

For contracts with certain clearing agents, the fair value of derivative instruments is netted against realized positions with the net balance reflected as either 1) a Derivative asset or liability or 2) an Account receivable or payable. Other than certain clearing agents, Accounts receivable and Accounts payable that are subject to netting arrangements have not been offset against the fair value of Derivative assets and liabilities.

For DTE Energy, the total cash collateral posted, net of cash collateral received, was $13 million and $28 million as of September 30, 2018 and December 31, 2017 , respectively. DTE Energy had $1 million of cash collateral related to unrealized positions to net against Derivative assets and no cash collateral related to unrealized positions to net against Derivative liabilities as of September 30, 2018 . DTE Energy had $9 million of cash collateral related to unrealized positions to net against Derivative assets while Derivative liabilities are shown net of cash collateral of $22 million as of December 31, 2017 . DTE Energy recorded cash collateral paid of $21 million and cash collateral received of $7 million not related to unrealized derivative positions as of September 30, 2018 . DTE Energy recorded cash collateral paid of $18 million and cash collateral received of $3 million not related to unrealized derivative positions as of December 31, 2017 . These amounts are included in Accounts receivable and Accounts payable and are recorded net by counterparty.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following table presents the netting offsets of Derivative assets and liabilities for DTE Energy:



	September 30, 2018									December 31, 2017
	Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position			Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Consolidated Statements of Financial Position			Net Amounts of Assets (Liabilities) Presented in the Consolidated Statements of Financial Position
	(In millions)
Derivative assets
Commodity contracts
Natural gas	$	200		$	(139	)	$	61		$	357		$	(256	)	$	101
Electricity	234			(173		)	61			285			(241		)	44
Other	7			(1		)	6			9			—			9
Foreign currency exchange contracts	1			(1		)	—			1			(1		)	—
Total derivative assets	$	442		$	(314	)	$	128		$	652		$	(498	)	$	154

Derivative liabilities
Commodity contracts
Natural gas	$	(229	)	$	139		$	(90	)	$	(378	)	$	263		$	(115	)
Electricity	(227		)	172			(55		)	(275		)	246			(29		)
Other	(1		)	1			—			(1		)	1			—
Foreign currency exchange contracts	(1		)	1			—			(3		)	1			(2		)
Total derivative liabilities	$	(458	)	$	313		$	(145	)	$	(657	)	$	511		$	(146	)

The following table presents the netting offsets of Derivative assets and liabilities showing the reconciliation of derivative instruments to DTE Energy's Consolidated Statements of Financial Position:



	September 30, 2018												December 31, 2017
	Derivative Assets						Derivative Liabilities						Derivative Assets						Derivative Liabilities
	Current			Noncurrent			Current			Noncurrent			Current			Noncurrent			Current			Noncurrent
	(In millions)
Total fair value of derivatives	$	361		$	81		$	(342	)	$	(116	)	$	540		$	112		$	(558	)	$	(99	)
Counterparty netting	(263		)	(50		)	263			50			(437		)	(52		)	437			52
Collateral adjustment	(1		)	—			—			—			—			(9		)	22			—
Total derivatives as reported	$	97		$	31		$	(79	)	$	(66	)	$	103		$	51		$	(99	)	$	(47	)

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The effect of derivatives not designated as hedging instruments on DTE Energy's Consolidated Statements of Operations is as follows:



Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivatives	Gain (Loss) Recognized in Income on Derivatives for the Three Months Ended September 30,						Gain (Loss) Recognized in Income on Derivatives for the Nine Months Ended September 30,
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivatives	2018			2017			2018			2017
		(In millions)
Commodity contracts
Natural gas	Operating Revenues — Non-utility operations	$	(29	)	$	(14	)	$	(51	)	$	63
Natural gas	Fuel, purchased power, and gas — non-utility	(6		)	10			(74		)	56
Electricity	Operating Revenues — Non-utility operations	26			33			37			39
Other	Operating Revenues — Non-utility operations	—			2			1			1
Foreign currency exchange contracts	Operating Revenues — Non-utility operations	(2		)	(2		)	2			(3		)
Total		$	(11	)	$	29		$	(85	)	$	156

Revenues and energy costs related to trading contracts are presented on a net basis in DTE Energy's Consolidated Statements of Operations. Commodity derivatives used for trading purposes, and financial non-trading commodity derivatives, are accounted for using the MTM method with unrealized and realized gains and losses recorded in Operating Revenues — Non-utility operations. Non-trading physical commodity sale and purchase derivative contracts are generally accounted for using the MTM method with unrealized and realized gains and losses for sales recorded in Operating Revenues — Non-utility operations and purchases recorded in Fuel, purchased power, and gas — non-utility.

The following represents the cumulative gross volume of DTE Energy's derivative contracts outstanding as of September 30, 2018 :



Commodity		Number of Units
Natural gas (MMBtu)		1,845,918,994
Electricity (MWh)		35,321,134
Foreign currency exchange (Canadian dollars)		101,360,396

Various subsidiaries of DTE Energy have entered into contracts which contain ratings triggers and are guaranteed by DTE Energy. These contracts contain provisions which allow the counterparties to require that DTE Energy post cash or letters of credit as collateral in the event that DTE Energy’s credit rating is downgraded below investment grade. Certain of these provisions (known as “hard triggers”) state specific circumstances under which DTE Energy can be required to post collateral upon the occurrence of a credit downgrade, while other provisions (known as “soft triggers”) are not as specific. For contracts with soft triggers, it is difficult to estimate the amount of collateral which may be requested by counterparties and/or which DTE Energy may ultimately be required to post. The amount of such collateral which could be requested fluctuates based on commodity prices (primarily natural gas, power, and coal) and the provisions and maturities of the underlying transactions. As of September 30, 2018 , DTE Energy's contractual obligation to post collateral in the form of cash or letters of credit in the event of a downgrade to below investment grade, under both hard trigger and soft trigger provisions, was $502 million .

As of September 30, 2018 , DTE Energy had $363 million of derivatives in net liability positions, for which hard triggers exist. There is $1 million of collateral that has been posted against such liabilities, including cash and letters of credit. Associated derivative net asset positions for which contractual offset exists were $295 million . The net remaining amount of $67 million is derived from the $502 million noted above.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

NOTE 9 — LONG-TERM DEBT

Debt Issuances

In 2018 , the following debt was issued:



Company	Month	Type	Interest Rate	Maturity Date	Amount
					(In millions)
DTE Electric	May	Mortgage Bonds ^(a)	4.05%	2048	$	525
DTE Energy	August	Senior Notes ^(b)	3.70%	2023	600
DTE Gas	August	Mortgage Bonds ^(b)	3.81%	2028	195
DTE Gas	August	Mortgage Bonds ^(b)	4.14%	2048	125
					$	1,445

_______________________________________


(a)	Bonds were issued as Green Bonds and the proceeds will be used to finance expenditures for solar and wind energy, payments under power purchase agreements for solar and wind energy, and energy optimization programs.


(b)	Proceeds were used for the repayment of short-term borrowings and for general corporate purposes.

Debt Redemptions

In 2018 , the following debt was redeemed:

Company

Month

Type

Interest Rate

Maturity Date

Amount

(In millions)

DTE Gas

April

Senior Notes

6.04%

2018

100

DTE Energy

Various

Other Long-Term Debt

Various

2018

105

NOTE 10 — SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS

DTE Energy, DTE Electric, and DTE Gas have unsecured revolving credit agreements that can be used for general corporate borrowings, but are intended to provide liquidity support for each of the companies’ commercial paper programs. Borrowings under the revolvers are available at prevailing short-term interest rates. Additionally, DTE Energy has other facilities to support letter of credit issuance.

The agreements require DTE Energy, DTE Electric, and DTE Gas to maintain a total funded debt to capitalization ratio of no more than 0.65 to 1. In the agreements, “total funded debt” means all indebtedness of each respective company and their consolidated subsidiaries, including capital lease obligations, hedge agreements, and guarantees of third parties’ debt, but excluding contingent obligations, nonrecourse and junior subordinated debt, and certain equity-linked securities and, except for calculations at the end of the second quarter, certain DTE Gas short-term debt. “Capitalization” means the sum of (a) total funded debt plus (b) “consolidated net worth,” which is equal to consolidated total equity of each respective company and their consolidated subsidiaries (excluding pension effects under certain FASB statements), as determined in accordance with accounting principles generally accepted in the United States of America. At September 30, 2018 , the total funded debt to total capitalization ratios for DTE Energy, DTE Electric, and DTE Gas were 0.54 to 1, 0.51 to 1, and 0.50 to 1, respectively, and were in compliance with this financial covenant.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The availability under the facilities in place at September 30, 2018 is shown in the following table:



	DTE Energy		DTE Electric		DTE Gas		Total
	(In millions)
Unsecured letter of credit facility, expiring in February 2019	$	150	$	—	$	—	$	150
Unsecured letter of credit facility, expiring in September 2019	70		—		—		70
Unsecured revolving credit facility, expiring April 2022	1,200		400		300		1,900
	1,420		400		300		2,120
Amounts outstanding at September 30, 2018
Commercial paper issuances	—		51		26		77
Letters of credit	159		—		—		159
	159		51		26		236
Net availability at September 30, 2018	$	1,261	$	349	$	274	$	1,884

DTE Energy has $9 million of other outstanding letters of credit which are used for various corporate purposes and are not included in the facilities described above.

In conjunction with maintaining certain exchange traded risk management positions, DTE Energy may be required to post collateral with its clearing agent. DTE Energy has a demand financing agreement for up to $100 million with its clearing agent. The agreement, as amended, also allows for up to $50 million of additional margin financing provided that DTE Energy posts a letter of credit for the incremental amount and allows the right of setoff with posted collateral. At September 30, 2018 , the capacity under this facility was $125 million . The amount outstanding under this agreement was $6 million and $56 million at September 30, 2018 and December 31, 2017 , respectively, and was fully offset by the posted collateral.

NOTE 11 — COMMITMENTS AND CONTINGENCIES

Environmental

DTE Electric

Air — DTE Electric is subject to the EPA ozone and fine particulate transport and acid rain regulations that limit power plant emissions of SO ₂ and NO _X . The EPA and the State of Michigan have also issued emission reduction regulations relating to ozone, fine particulate, regional haze, mercury, and other air pollution. These rules have led to controls on fossil-fueled power plants to reduce SO ₂ , NO _X , mercury, and other emissions. Additional rulemakings may occur over the next few years which could require additional controls for SO ₂ , NO _X , and other hazardous air pollutants.

The EPA proposed revised air quality standards for ground level ozone in November 2014 and specifically requested comments on the form and level of the ozone standards. The standards were finalized in October 2015. The State of Michigan recommended to the EPA in October 2016 which areas of the state are not attaining the new standard. On April 30, 2018, the EPA finalized the State of Michigan's recommended non-attainment designation for southeast Michigan. The State is required to develop and implement a plan to address the southeast Michigan ozone non-attainment area by 2021. DTE Electric cannot predict the financial impact of the State's plan to address the ozone non-attainment area at this time.

In July 2009, DTE Energy received a NOV/FOV from the EPA alleging, among other things, that five DTE Electric power plants violated New Source Performance standards, Prevention of Significant Deterioration requirements, and operating permit requirements under the Clean Air Act. In June 2010, the EPA issued a NOV/FOV making similar allegations related to a project and outage at Unit 2 of the Monroe Power Plant. In March 2013, DTE Energy received a supplemental NOV from the EPA relating to the July 2009 NOV/FOV. The supplemental NOV alleged additional violations relating to the New Source Review provisions under the Clean Air Act, among other things.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

In August 2010, the U.S. Department of Justice, at the request of the EPA, brought a civil suit in the U.S. District Court for the Eastern District of Michigan against DTE Energy and DTE Electric, related to the June 2010 NOV/FOV and the outage work performed at Unit 2 of the Monroe Power Plant. In August 2011, the U.S. District Court judge granted DTE Energy's motion for summary judgment in the civil case, dismissing the case and entering judgment in favor of DTE Energy and DTE Electric. In October 2011, the EPA filed a Notice of Appeal to the Court of Appeals for the Sixth Circuit. In March 2013, the Court of Appeals remanded the case to the U.S. District Court for review of the procedural component of the New Source Review notification requirements. In September 2013, the EPA filed a motion seeking leave to amend their complaint regarding the June 2010 NOV/FOV adding additional claims related to outage work performed at the Trenton Channel and Belle River Power Plants as well as additional claims related to work performed at the Monroe Power Plant. In March 2014, the U.S. District Court judge again granted DTE Energy's motion for summary judgment dismissing the civil case related to Monroe Unit 2. In April 2014, the U.S. District Court judge granted motions filed by the EPA and the Sierra Club to amend their New Source Review complaint adding additional claims for Monroe Units 1, 2, and 3, Belle River Units 1 and 2, and Trenton Channel Unit 9. In October 2014, the EPA and the U.S. Department of Justice filed a notice of appeal of the U.S. District Court judge's dismissal of the Monroe Unit 2 case. The amended New Source Review claims were all stayed pending resolution of the appeal by the Court of Appeals for the Sixth Circuit. On January 10, 2017, a divided panel of the Court reversed the decision of the U.S. District Court. On May 8, 2017, DTE Energy and DTE Electric filed a motion to stay the mandate pending filing of a petition for writ of certiorari with the U.S. Supreme Court. The Sixth Circuit granted the motion on May 16, 2017, staying the claims in the U.S. District Court until the U.S. Supreme Court disposes of the case. DTE Electric and DTE Energy filed a petition for writ of certiorari on July 31, 2017. On December 11, 2017, the U.S. Supreme Court denied certiorari. As a result of the Supreme Court electing not to review the matter, the case was sent back to the U.S. District Court for further proceedings and on June 14, 2018 the case was stayed for 180 days pending settlement negotiations. The proceedings at the District Court are currently stayed while the parties discuss potential resolution of the matter.

The Registrants believe that the plants and generating units identified by the EPA and the Sierra Club have complied with all applicable federal environmental regulations. Depending upon the outcome of the litigation and further discussions with the EPA regarding the two NOVs/FOVs, DTE Electric could be required to install additional pollution control equipment at some or all of the power plants in question, implement early retirement of facilities where control equipment is not economical, engage in supplemental environmental programs, and/or pay fines. The Registrants cannot predict the financial impact or outcome of this matter, or the timing of its resolution.

The EPA has implemented regulatory actions under the Clean Air Act to address emissions of GHGs from the utility sector and other sectors of the economy. Among these actions, in 2015 the EPA finalized performance standards for emissions of carbon dioxide from new and existing EGUs. In February 2016, the U.S. Supreme Court granted petitioners' requests for a stay of the carbon rules for existing EGUs (also known as the EPA Clean Power Plan) pending final review by the courts. The Clean Power Plan has no legal effect while the stay is in place. On March 28, 2017, a presidential executive order was issued on "Promoting Energy Independence and Economic Growth." The order instructs the EPA to review, and if appropriate, suspend, revise or rescind the Clean Power Plan rule. Following the issuance of this order, the federal government requested the U.S. Court of Appeals for the D.C. Circuit to hold all legal challenges in abeyance until the review of these regulations is completed. On October 10, 2017, the EPA proposed to rescind the Clean Power Plan and announced its intent to issue an ANPR seeking input as to whether it should replace the rule and, if so, what form it should take. In August 2018, the EPA proposed revised emission guidelines for GHGs from existing electric utility generating units. This proposed rule, named the Affordable Clean Energy (ACE) rule, is intended to replace the Clean Power Plan rule. Comments on the proposed ACE rule are due on October 31, 2018. It is not possible to determine the potential impact of the EPA's proposed ACE rule on existing sources at this time.

Pending or future legislation or other regulatory actions could have a material impact on DTE Electric's operations and financial position and the rates charged to its customers. Impacts include expenditures for environmental equipment beyond what is currently planned, financing costs related to additional capital expenditures, the purchase of emission credits from market sources, higher costs of purchased power, and the retirement of facilities where control equipment is not economical. DTE Electric would seek to recover these incremental costs through increased rates charged to its utility customers, as authorized by the MPSC.

To comply with air pollution requirements, DTE Electric spent approximately $2.4 billion through 2017 . DTE Electric does not anticipate additional capital expenditures through 2024 .

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Water — In response to an EPA regulation, DTE Electric was required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities. Based on the results of completed studies and expected future studies, DTE Electric may be required to install technologies to reduce the impacts of the water intake structures. A final rule became effective in October 2014. The final rule requires studies to be completed and submitted as part of the National Pollutant Discharge Elimination System (NPDES) permit application process to determine the type of technology needed to reduce impacts to fish. DTE Electric has initiated the process of completing the required studies. Final compliance for the installation of any required technology will be determined by each state on a case by case, site specific basis. DTE Electric is currently evaluating the compliance options and working with the State of Michigan on evaluating whether any controls are needed. These evaluations/studies may require modifications to some existing intake structures. It is not possible to quantify the impact of this rulemaking at this time.

Contaminated and Other Sites — Prior to the construction of major interstate natural gas pipelines, gas for heating and other uses was manufactured locally from processes involving coal, coke, or oil. The facilities, which produced gas, have been designated as MGP sites. DTE Electric conducted remedial investigations at contaminated sites, including three former MGP sites. The investigations have revealed contamination related to the by-products of gas manufacturing at each MGP site. In addition to the MGP sites, DTE Electric is also in the process of cleaning up other contaminated sites, including the area surrounding an ash landfill, electrical distribution substations, electric generating power plants, and underground and aboveground storage tank locations. The findings of these investigations indicated that the estimated cost to remediate these sites is expected to be incurred over the next several years. At September 30, 2018 and December 31, 2017 , DTE Electric had $5 million and $6 million , respectively, accrued for remediation. Any change in assumptions, such as remediation techniques, nature and extent of contamination, and regulatory requirements, could impact the estimate of remedial action costs for the sites and affect DTE Electric’s financial position and cash flows. DTE Electric believes the likelihood of a material change to the accrued amount is remote based on current knowledge of the conditions at each site.

Coal Combustion Residuals and Effluent Limitations Guidelines — A final EPA rule for the disposal of coal combustion residuals, commonly known as coal ash, became effective in October 2015, and was revised in October 2016 and July 2018. Additionally, a D.C. District Court Decision on August 21, 2018 could affect the compliance and closure plans for CCR regulated impoundments and timing of closures of some regulated CCR impoundments. Legislation introduced into the Michigan House of Representatives on June 12, 2018 would provide for a CCR program to be regulated in Michigan once approval is requested from, and approved by, the EPA. DTE Electric owns and operates three permitted engineered coal ash storage facilities to dispose of coal ash from coal-fired power plants and operates a number of smaller impoundments at its power plants. CCR obligations vary based on plant life, but include the installation of monitoring wells, compliance with groundwater standards, and the closure of landfills and basins at the end of the useful life of the associated power plant or as a basin becomes inactive. Under the current CCR rules and uncertainty regarding the DC District Court decision, capital costs and timing associated with the building of new CCR facilities or retirement of existing CCR facilities are being evaluated.

In November 2015, the EPA finalized the ELG Rule for the steam electric power generating industry which may require additional controls to be installed between 2018 and 2023. On April 12, 2017, the EPA granted a petition for reconsideration of the ELG Rule. The EPA also signed an administrative stay of the ELG Rule’s compliance deadlines for fly ash transport water, bottom ash transport water, and flue gas desulfurization (FGD) wastewater, among others. On June 6, 2017, the EPA published in the Federal Register a proposed rule to postpone certain applicable deadlines within the ELG rule. The final rule was published on September 18, 2017, which extended the earliest compliance deadlines for the FGD wastewater and bottom ash transport until November 1, 2020 in order for the EPA to propose and finalize a new ruling. The ELG compliance requirements, final deadlines, and compliance costs will not be known until the EPA completes its reconsideration of the ELG Rule.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

DTE Gas

Contaminated and Other Sites — DTE Gas owns or previously owned, 14 former MGP sites. Investigations have revealed contamination related to the by-products of gas manufacturing at each site. Cleanup of six of the MGP sites is complete, and the sites are closed. DTE Gas has also completed partial closure of six additional sites. Cleanup activities associated with the remaining sites will continue over the next several years. The MPSC has established a cost deferral and rate recovery mechanism for investigation and remediation costs incurred at former MGP sites. In addition to the MGP sites, DTE Gas is also in the process of cleaning up other contaminated sites, including gate stations, gas pipeline releases, and underground storage tank locations. As of September 30, 2018 and December 31, 2017 , DTE Gas had $32 million and $41 million accrued for remediation, respectively. Any change in assumptions, such as remediation techniques, nature and extent of contamination, and regulatory requirements, could impact the estimate of remedial action costs for the sites and affect DTE Gas' financial position and cash flows. DTE Gas anticipates the cost amortization methodology approved by the MPSC, which allows for amortization of the MGP costs over a ten -year period beginning with the year subsequent to the year the MGP costs were incurred, will prevent environmental costs from having a material adverse impact on DTE Gas' results of operations.

Non-utility

DTE Energy's non-utility businesses are subject to a number of environmental laws and regulations dealing with the protection of the environment from various pollutants.

Other

In 2010, the EPA finalized a new one -hour SO ₂ ambient air quality standard that requires states to submit plans and associated timelines for non-attainment areas that demonstrate attainment with the new SO ₂ standard in phases. Phase 1 addresses non-attainment areas designated based on ambient monitoring data. Phase 2 addresses non-attainment areas with large sources of SO ₂ and modeled concentrations exceeding the National Ambient Air Quality Standards for SO ₂ . Phase 3 addresses smaller sources of SO ₂ with modeled or monitored exceedances of the new SO ₂ standard.

Michigan's Phase 1 non-attainment area includes DTE Energy facilities in southwest Detroit and areas of Wayne County. Modeling runs by the MDEQ suggest that emission reductions may be required by significant sources of SO ₂ emissions in these areas, including DTE Electric power plants and DTE Energy's Michigan coke battery facility. As part of the state implementation plan process, DTE Energy has worked with the MDEQ to develop air permits reflecting significant SO ₂ emission reductions that, in combination with other non-DTE Energy sources' emission reduction strategies, will help the state attain the standard and sustain its attainment. Since several non-DTE Energy sources are also part of the proposed compliance plan, DTE Energy is unable to determine the full impact of the final required emissions reductions at this time.

Michigan's Phase 2 non-attainment area includes DTE Electric facilities in St. Clair County. State implementation plan (SIP) submittal and EPA approval describing the control strategy and timeline for demonstrating compliance with the new SO ₂ standard is the next step in the process, expected to be completed by the end of the year. DTE Energy is currently working with the MDEQ to develop the required SIP. DTE Energy is unable to determine the full impact of the SIP strategy.

Synthetic Fuel Guarantees

DTE Energy discontinued the operations of its synthetic fuel production facilities throughout the United States as of December 31, 2007. DTE Energy provided certain guarantees and indemnities in conjunction with the sales of interests in its synfuel facilities. The guarantees cover potential commercial, environmental, oil price, and tax-related obligations that will survive until 90 days after expiration of all applicable statutes of limitations. DTE Energy estimates that its maximum potential liability under these guarantees at September 30, 2018 was approximately $400 million . Payments under these guarantees are considered remote.

REF Guarantees

DTE Energy has provided certain guarantees and indemnities in conjunction with the sales of interests in or lease of its REF facilities. The guarantees cover potential commercial, environmental, and tax-related obligations that will survive until 90 days after expiration of all applicable statutes of limitations. DTE Energy estimates that its maximum potential liability under these guarantees at September 30, 2018 was $468 million . Payments under these guarantees are considered remote.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

NEXUS Guarantees

NEXUS entered into certain 15 -year capacity lease agreements for the transportation of natural gas with DTE Gas and Texas Eastern Transmission, LP, an unrelated third party. Pursuant to the terms of those agreements, in December 2016, DTE Energy executed separate guarantee agreements with DTE Gas and Texas Eastern Transmission, LP, with maximum potential payments totaling $85 million and $44 million at September 30, 2018 , respectively; each representing 50% of all payment obligations due and payable by NEXUS. Should NEXUS fail to perform under the terms of those agreements, DTE Energy is required to perform on its behalf. Each guarantee terminates at the earlier of (i) such time as all of the guaranteed obligations have been fully performed, or (ii) two months following the end of the primary term of the capacity lease agreements. Subsequent to the NEXUS in-service date, the amount of each guarantee decreases annually as payments are made by NEXUS to each of the aforementioned counterparties. Payments under these guarantees are considered remote.

Other Guarantees

In certain limited circumstances, the Registrants enter into contractual guarantees. The Registrants may guarantee another entity’s obligation in the event it fails to perform and may provide guarantees in certain indemnification agreements. Finally, the Registrants may provide indirect guarantees for the indebtedness of others. DTE Energy’s guarantees are not individually material with maximum potential payments totaling $56 million at September 30, 2018 . Payments under these guarantees are considered remote.

DTE Energy is periodically required to obtain performance surety bonds in support of obligations to various governmental entities and other companies in connection with its operations. As of September 30, 2018 , DTE Energy had $66 million of performance bonds outstanding. In the event that such bonds are called for nonperformance, DTE Energy would be obligated to reimburse the issuer of the performance bond. DTE Energy is released from the performance bonds as the contractual performance is completed and does not believe that a material amount of any currently outstanding performance bonds will be called.

Labor Contracts

There are several bargaining units for DTE Energy subsidiaries' approximate 5,000 represented employees, including DTE Electric's approximate 2,700 represented employees. The majority of the represented employees are under contracts that expire in 2020 and 2021.

Purchase Commitments

Utility capital expenditures, expenditures for non-utility businesses, and contributions to equity method investees will be approximately $3.6 billion and $1.9 billion in 2018 for DTE Energy and DTE Electric, respectively. The Registrants have made certain commitments in connection with the estimated 2018 annual capital expenditures and contributions to equity method investees.

Other Contingencies

The Registrants are involved in certain other legal, regulatory, administrative, and environmental proceedings before various courts, arbitration panels, and governmental agencies concerning claims arising in the ordinary course of business. These proceedings include certain contract disputes, additional environmental reviews and investigations, audits, inquiries from various regulators, and pending judicial matters. The Registrants cannot predict the final disposition of such proceedings. The Registrants regularly review legal matters and record provisions for claims that they can estimate and are considered probable of loss. The resolution of these pending proceedings is not expected to have a material effect on the Registrants' Consolidated Financial Statements in the periods they are resolved.

For a discussion of contingencies related to regulatory matters and derivatives, see Notes 5 and 8 to the Consolidated Financial Statements, " Regulatory Matters " and " Financial and Other Derivative Instruments ," respectively.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

NOTE 12 — RETIREMENT BENEFITS AND TRUSTEED ASSETS

The following tables detail the components of net periodic benefit costs (credits) for pension benefits and other postretirement benefits for DTE Energy:



	Pension Benefits						Other Postretirement Benefits
	2018			2017			2018			2017
Three Months Ended September 30,	(In millions)
Service cost	$	24		$	22		$	6		$	7
Interest cost	51			53			18			18
Expected return on plan assets	(82		)	(78		)	(36		)	(33		)
Amortization of:
Net actuarial loss	43			46			3			3
Prior service cost (credit)	—			1			—			(3		)
Net periodic benefit cost (credit)	$	36		$	44		$	(9	)	$	(8	)



	Pension Benefits						Other Postretirement Benefits
	2018			2017			2018			2017
Nine Months Ended September 30,	(In millions)
Service cost	$	74		$	69		$	20		$	20
Interest cost	151			160			52			55
Expected return on plan assets	(247		)	(233		)	(107		)	(98		)
Amortization of:
Net actuarial loss	132			132			8			10
Prior service cost (credit)	—			1			—			(10		)
Net periodic benefit cost (credit)	$	110		$	129		$	(27	)	$	(23	)

DTE Electric participates in various plans that provide pension and other postretirement benefits for DTE Energy and its affiliates. The plans are sponsored by DTE Energy's subsidiary, DTE Energy Corporate Services, LLC. DTE Electric accounts for its participation in DTE Energy's qualified and nonqualified pension plans by applying multiemployer accounting. DTE Electric accounts for its participation in other postretirement benefit plans by applying multiple-employer accounting. Within multiemployer and multiple-employer plans, participants pool plan assets for investment purposes and to reduce the cost of plan administration. The primary difference between plan types is assets contributed in multiemployer plans can be used to provide benefits for all participating employers, while assets contributed within a multiple-employer plan are restricted for use by the contributing employer. As a result of multiemployer accounting treatment, capitalized costs associated with these plans are reflected in Property, plant, and equipment in DTE Electric's Consolidated Financial Statements. The same capitalized costs are reflected as Regulatory assets and liabilities in DTE Energy's Consolidated Financial Statements. Plan participants of all plans are solely DTE Energy and affiliate participants.

DTE Energy's subsidiaries are responsible for their share of qualified and nonqualified pension benefit costs. DTE Electric's allocated portion of pension benefit costs included in capital expenditures and operating and maintenance expense were $30 million and $33 million for the three months ended September 30, 2018 and 2017 , respectively, and $90 million and $102 million for the nine months ended September 30, 2018 and 2017 , respectively. These amounts include recognized contractual termination benefit charges, curtailment gains, and settlement charges.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

The following tables detail the components of net periodic benefit costs (credits) for other postretirement benefits for DTE Electric:



	Other Postretirement Benefits
	2018			2017
Three Months Ended September 30,	(In millions)
Service cost	$	5		$	5
Interest cost	13			14
Expected return on plan assets	(25		)	(23		)
Amortization of:
Net actuarial loss	3			2
Prior service credit	—			(2		)
Net periodic benefit credit	$	(4	)	$	(4	)



	Other Postretirement Benefits
	2018			2017
Nine Months Ended September 30,	(In millions)
Service cost	$	15		$	15
Interest cost	40			42
Expected return on plan assets	(74		)	(68		)
Amortization of:
Net actuarial loss	7			6
Prior service credit	—			(7		)
Net periodic benefit credit	$	(12	)	$	(12	)

Pension and Other Postretirement Contributions

During 2018 , DTE Energy contributed the following amounts of DTE Energy common stock to the DTE Energy Company Affiliates Employee Benefit Plans Master Trust:



Date	Number of Shares	Price per Share	Amount
			(In millions)
March 7, 2018	1,751,401	$99.92	$	175

The above contribution was made on behalf of DTE Electric, who paid DTE Energy cash consideration of $175 million in March 2018. DTE Energy does not anticipate making any additional contributions to its pension or other postretirement benefit plans in 2018 .

NOTE 13 — SEGMENT AND RELATED INFORMATION

DTE Energy sets strategic goals, allocates resources, and evaluates performance based on the following structure:

Electric segment consists principally of DTE Electric, which is engaged in the generation, purchase, distribution, and sale of electricity to approximately 2.2 million residential, commercial, and industrial customers in southeastern Michigan.

Gas segment consists principally of DTE Gas, which is engaged in the purchase, storage, transportation, distribution, and sale of natural gas to approximately 1.3 million residential, commercial, and industrial customers throughout Michigan and the sale of storage and transportation capacity.

Gas Storage and Pipelines is primarily engaged in services related to the gathering, transportation, and storage of natural gas.

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Power and Industrial Projects is comprised primarily of projects that deliver energy and utility-type products and services to industrial, commercial, and institutional customers, produce reduced emissions fuel, and sell electricity and pipeline-quality gas from renewable energy projects.

Energy Trading consists of energy marketing and trading operations.

Corporate and Other includes various holding company activities, holds certain non-utility debt, and holds energy-related investments.

The federal income tax provisions or benefits of DTE Energy’s subsidiaries are determined on an individual company basis and recognize the tax benefit of tax credits and net operating losses, if applicable. The state and local income tax provisions of the utility subsidiaries are determined on an individual company basis and recognize the tax benefit of various tax credits and net operating losses, if applicable. The subsidiaries record federal, state, and local income taxes payable to or receivable from DTE Energy based on the federal, state, and local tax provisions of each company.

Inter-segment billing for goods and services exchanged between segments is based upon tariffed or market-based prices of the provider and primarily consists of the sale of reduced emissions fuel, power sales, and natural gas sales in the following segments:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions)
Electric	$	13	$	11	$	39	$	36
Gas	3		1		9		6
Gas Storage and Pipelines	7		10		29		32
Power and Industrial Projects	171		138		488		462
Energy Trading	6		8		18		27
Corporate and Other	1		1		2		2
	$	201	$	169	$	585	$	565

Financial data of DTE Energy's business segments follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,521		$	1,434		$	4,002		$	3,827
Gas	164			152			969			929
Operating Revenues — Non-utility operations
Gas Storage and Pipelines	122			115			363			333
Power and Industrial Projects	612			537			1,717			1,592
Energy Trading	1,332			1,174			3,994			3,217
Corporate and Other	—			2			2			3
Reconciliation and Eliminations	(201		)	(169		)	(585		)	(565		)
Total	$	3,550		$	3,245		$	10,462		$	9,336



Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	305		$	219		$	608		$	463
Gas	(30		)	(15		)	88			93
Gas Storage and Pipelines	66			36			188			121
Power and Industrial Projects	58			44			146			104
Energy Trading	(13		)	1			13			97
Corporate and Other	(52		)	(15		)	(114		)	(31		)
Net Income Attributable to DTE Energy Company	$	334		$	270		$	929		$	847

DTE Energy Company — DTE Electric Company

Combined Notes to Consolidated Financial Statements (Unaudited) — (Continued)

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following combined discussion is separately filed by DTE Energy and DTE Electric. However, DTE Electric does not make any representations as to information related solely to DTE Energy or the subsidiaries of DTE Energy other than itself.

EXECUTIVE OVERVIEW

DTE Energy is a diversified energy company and is the parent company of DTE Electric and DTE Gas, regulated electric and natural gas utilities engaged primarily in the business of providing electricity and natural gas sales, distribution, and storage services throughout Michigan. DTE Energy operates three energy-related non-utility segments with operations throughout the United States.

The following table summarizes DTE Energy's financial results:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions, except per share amounts)
Net Income Attributable to DTE Energy Company	$	334	$	270	$	929	$	847
Diluted Earnings per Common Share	$	1.84	$	1.51	$	5.13	$	4.72

The increase in Net Income in the third quarter and nine-month period was primarily due to higher earnings in the Electric, Gas Storage and Pipelines, and Power and Industrial Projects segments, partially offset by lower earnings in the Gas, Energy Trading, and Corporate and Other segments. The increase in the nine-month period was partially offset by true-up adjustments for the remeasurement of deferred taxes of $21 million as the adjustments increased Income Tax Expense, of which $16 million was attributable to the regulated utilities and offset to Regulatory liabilities. Additionally, during the third quarter and nine-month period , DTE Energy recorded a valuation allowance of $20 million for the AMT credit carryover. This adjustment also increased Income Tax Expense. Total Income Tax Expense decreased from the prior year due to the reduction of the corporate tax rate from 35% to 21%, which became effective in 2018.

Please see detailed explanations of segment performance in the following "Results of Operations" section.

DTE Energy's strategy is to achieve long-term earnings growth, a strong balance sheet, and an attractive dividend yield.

DTE Energy's utilities are investing capital to improve customer reliability through investments in base infrastructure and new generation, and to comply with environmental requirements. DTE Energy expects that planned significant capital investments will result in earnings growth. DTE Energy is focused on executing plans to achieve operational excellence and customer satisfaction with a focus on customer affordability. DTE Energy operates in a constructive regulatory environment and has solid relationships with its regulators.

In May 2017, DTE Energy announced its plan to reduce carbon emissions. This goal will be attained by cutting carbon emissions 30% by the early 2020s, 45% by 2030, 75% by 2040, and more than 80% by 2050. To achieve this reduction, DTE Energy will transition away from coal-powered sources and incorporate more renewable energy, energy waste reduction, demand response, and highly-efficient natural gas fueled power plants. DTE Energy has already begun the transition in the way it produces power through the continued retirement of its aging coal-fired plants. In May 2018, DTE Energy announced its plans to accelerate its clean energy initiatives by targeting at least a 50% clean energy goal by 2030, achieved through a combination of investments in renewable energy and energy efficiency projects. Refer to the "Capital Investments" section below for further discussion.

DTE Energy has significant investments in non-utility businesses. DTE Energy employs disciplined investment criteria when assessing growth opportunities that leverage its assets, skills, and expertise, and provides diversity in earnings and geography. Specifically, DTE Energy invests in targeted energy markets with attractive competitive dynamics where meaningful scale is in alignment with its risk profile. DTE Energy expects growth opportunities in the Gas Storage and Pipelines and Power and Industrial Projects segments.

A key priority for DTE Energy is to maintain a strong balance sheet which facilitates access to capital markets and reasonably priced short-term and long-term financing. Near-term growth will be funded through internally generated cash flows and the issuance of debt and equity. DTE Energy has an enterprise risk management program that, among other things, is designed to monitor and manage exposure to earnings and cash flow volatility related to commodity price changes, interest rates, and counterparty credit risk.

CAPITAL INVESTMENTS

DTE Energy's utility businesses require significant capital investments to maintain and improve the electric generation and electric and natural gas distribution infrastructure and to comply with environmental regulations and renewable energy requirements.

DTE Electric's capital investments over the 2018 - 2022 period are estimated at $10.4 billion comprised of $4.1 billion for capital replacements and other projects, $4.3 billion for distribution infrastructure, and $2.0 billion for new generation. DTE Electric has retired four coal-fired generation units at the Trenton Channel, River Rouge, and St. Clair facilities and has announced plans to retire its remaining thirteen coal-fired generating units. Seven of these coal-fired generating units will be retired through 2023 at the Trenton Channel, River Rouge, and St. Clair facilities. The remaining coal-fired generating units at the Belle River and Monroe facilities are expected to be retired by 2040. The retired facilities will be replaced with renewables, energy efficiency, demand response, and natural gas fueled generation. DTE Electric constructed and placed in service 50 megawatts of solar generation in 2017. In April 2018, DTE Electric received approval from the MPSC to build a natural gas fueled combined cycle generation facility to provide approximately 1,100 megawatts of energy beginning in 2022. In March 2018, DTE Electric filed its 2018 Renewable Energy Plan with the MPSC proposing approximately 1,000 additional megawatts of energy from new wind and solar projects to be completed by 2022. The MPSC had previously approved 300 of the 1,000 additional megawatts for wind projects in an MPSC order received in September 2016. In January 2018, DTE Electric filed with the MPSC its five-year distribution operations investment and maintenance plan to improve system reliability. DTE Electric plans to seek regulatory approval for capital expenditures consistent with prior ratemaking treatment. For further discussion of regulatory matters, see Note 5 to the Consolidated Financial Statements, " Regulatory Matters ."

DTE Gas' capital investments over the 2018 - 2022 period are estimated at $2.1 billion comprised of $950 million for base infrastructure, $1.1 billion for gas main renewal, meter move out, and pipeline integrity programs, and $10 million for expenditures related to the NEXUS Pipeline. DTE Gas includes base infrastructure capital expenditures in general rate case filings.

DTE Energy's non-utility businesses' capital investments are primarily for expansion, growth, and ongoing maintenance. Gas Storage and Pipelines' capital investments over the 2018 - 2022 period are estimated at $2.8 billion to $3.4 billion for gathering and pipeline investments and expansions, including the NEXUS Pipeline. Power and Industrial Projects' capital investments over the 2018 - 2022 period are estimated at $800 million to $1.2 billion for investments in cogeneration and on-site energy projects.

ENVIRONMENTAL MATTERS

The Registrants are subject to extensive environmental regulation. Additional costs may result as the effects of various substances on the environment are studied and governmental regulations are developed and implemented. Actual costs to comply could vary substantially. The Registrants expect to continue recovering environmental costs related to utility operations through rates charged to customers, as authorized by the MPSC.

DTE Electric is subject to the EPA ozone and fine particulate transport and acid rain regulations that limit power plant emissions of SO ₂ and NO _X . The EPA and the State of Michigan have also issued emission reduction regulations relating to ozone, fine particulate, regional haze, mercury, and other air pollution. These rules have led to controls on fossil-fueled power plants to reduce SO ₂ , NO _X, mercury, and other emissions. Additional rulemakings may occur over the next few years which could require additional controls for SO ₂ , NO _X , and other hazardous air pollutants. To comply with existing requirements, DTE Electric spent approximately $2.4 billion through 2017 . DTE Electric does not anticipate additional capital expenditures through 2024 .

Increased costs for energy produced from traditional coal-based sources due to recent, pending, and future regulatory initiatives, could also increase the economic viability of energy produced from renewable, natural gas fueled generation, and/or nuclear sources, energy efficiency initiatives, and the potential development of market-based trading of carbon instruments which could provide new business opportunities for DTE Energy's utility and non-utility segments. At the present time, it is not possible to quantify the financial impacts of these climate related regulatory initiatives on the Registrants or their customers.

For further discussion of environmental matters, see Note 11 to the Consolidated Financial Statements, " Commitments and Contingencies ."

OUTLOOK

The next few years will be a period of rapid change for DTE Energy and for the energy industry. DTE Energy's strong utility base, combined with its integrated non-utility operations, position it well for long-term growth.

Looking forward, DTE Energy will focus on several areas that are expected to improve future performance:


•	electric and gas customer satisfaction;


•	electric distribution system reliability;


•	new electric generation;


•	gas distribution system renewal;


•	rate competitiveness and affordability;


•	regulatory stability and investment recovery for the electric and gas utilities;


•	employee safety and engagement;


•	cost structure optimization across all business segments;


•	cash, capital, and liquidity to maintain or improve financial strength; and


•	investments that integrate assets and leverage skills and expertise.

DTE Energy will continue to pursue opportunities to grow its businesses in a disciplined manner if it can secure opportunities that meet its strategic, financial, and risk criteria.

RESULTS OF OPERATIONS

Management’s Discussion and Analysis of Financial Condition and Results of Operations includes financial information prepared in accordance with GAAP, as well as the non-GAAP financial measures, Utility Margin and Non-utility Margin, discussed below, which DTE Energy uses as measures of its operational performance. Generally, a non-GAAP financial measure is a numerical measure of financial performance, financial position or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP.

DTE Energy uses Utility Margin and Non-utility Margin, non-GAAP financial measures, to assess its performance by reportable segment.

Utility Margin includes electric and gas Operating Revenues net of Fuel, purchased power, and gas expenses. The utilities’ fuel, purchased power, and natural gas supply are passed through to customers, and therefore, result in changes to the utilities’ revenues that are comparable to changes in such expenses. As such, DTE Energy believes Utility Margin provides a meaningful basis for evaluating the utilities’ operations across periods, as it excludes the revenue effect of fluctuations in these expenses.

The Non-utility Margin relates to the Power and Industrial Projects and Energy Trading segments. For the Power and Industrial Projects segment, Non-utility Margin primarily includes Operating Revenues net of Fuel, purchased power, and gas expenses. Operating Revenues include sales of refined coal to third parties and the affiliated Electric utility, metallurgical coke and related by-products, petroleum coke, renewable natural gas, and electricity, as well as rental income and revenues from utility-type consulting, management, and operational services. For the Energy Trading segment, Non-utility Margin includes revenue and realized and unrealized gains and losses from physical and financial power and gas marketing, optimization, and trading activities, net of Purchased power and gas related to these activities. DTE Energy evaluates its operating performance of these non-utility businesses using the measure of Operating Revenues net of Fuel, purchased power, and gas expenses.

Utility Margin and Non-utility Margin are not measures calculated in accordance with GAAP and should be viewed as a supplement to and not a substitute for the results of operations presented in accordance with GAAP. Utility Margin and Non-utility Margin do not intend to represent operating income, the most comparable GAAP measure, as an indicator of operating performance and are not necessarily comparable to similarly titled measures reported by other companies.

The following sections provide a detailed discussion of the operating performance and future outlook of DTE Energy's segments. Segment information, described below, includes intercompany revenues and expenses, and other income and deductions that are eliminated in the Consolidated Financial Statements.



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment
Electric	$	305		$	219		$	608		$	463
Gas	(30		)	(15		)	88			93
Gas Storage and Pipelines	66			36			188			121
Power and Industrial Projects	58			44			146			104
Energy Trading	(13		)	1			13			97
Corporate and Other	(52		)	(15		)	(114		)	(31		)
Net Income Attributable to DTE Energy Company	$	334		$	270		$	929		$	847

ELECTRIC

The Results of Operations discussion for DTE Electric is presented in a reduced disclosure format in accordance with General Instruction H(2) of Form 10-Q.

The Electric segment consists principally of DTE Electric. Electric results are discussed below:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(In millions)
Operating Revenues — Utility operations	$	1,521	$	1,434	$	4,002	$	3,827
Fuel and purchased power — utility	438		428		1,163		1,097
Utility Margin	1,083		1,006		2,839		2,730
Operation and maintenance	352		338		1,001		1,034
Depreciation and amortization	201		188		615		549
Taxes other than income	77		74		232		229
Operating Income	453		406		991		918
Other (Income) and Deductions	67		69		211		206
Income Tax Expense	81		118		172		249
Net Income Attributable to DTE Energy Company	$	305	$	219	$	608	$	463

See DTE Electric's Consolidated Statements of Operations for a complete view of its results. For an explanation of differences between the Electric segment and DTE Electric's Consolidated Statements of Operations, refer to Note 12 to the Consolidated Financial Statements, " Retirement Benefits and Trusteed Assets ."

Utility Margin increased $77 million and $109 million in the three and nine months ended September 30, 2018 , respectively. Revenues associated with certain mechanisms and surcharges are offset by related expenses elsewhere in the Registrants' Consolidated Statements of Operations.

The following table details changes in various Utility Margin components relative to the comparable prior period:



	Three Months			Nine Months
	(In millions)
Weather	$	91		$	157
Implementation of new rates	19			50
PSCR disallowance in 2017	—			13
Base sales	4			(33		)
TCJA rate reduction	(40		)	(117		)
Regulatory mechanisms and other	3			39
Increase in Utility Margin	$	77		$	109



	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
	(In thousands of MWh)
DTE Electric Sales
Residential	5,028	4,335	12,387	11,290
Commercial	4,836	4,801	13,218	13,208
Industrial	2,641	2,627	7,893	7,461
Other	49	48	157	188
	12,554	11,811	33,655	32,147
Interconnection sales ^(a)	629	318	2,523	2,330
Total DTE Electric Sales	13,183	12,129	36,178	34,477

DTE Electric Deliveries
Retail and wholesale	12,554	11,811	33,655	32,147
Electric retail access, including self-generators ^(b)	1,277	1,249	3,634	3,636
Total DTE Electric Sales and Deliveries	13,831	13,060	37,289	35,783

______________________________


(a)	Represents power that is not distributed by DTE Electric.


(b)	Represents deliveries for self-generators that have purchased power from alternative energy suppliers to supplement their power requirements.

Operation and maintenance expense increased $14 million and decreased $33 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter was primarily due to increased distribution expenses of $2 million and increased uncollectible expense of $9 million due to increased arrears. The decrease in the nine-month period was primarily due to decreased power plant generation expenses of $26 million, decreased distribution expenses of $19 million, and a one-time benefits expense reimbursement of $9 million, partially offset by increased uncollectible expense of $16 million due to increased arrears. The decrease in power plant generation expenses includes a decrease of $23 million of costs related to the 2016 fire at a generation facility incurred in 2017 and $8 million in related insurance proceeds received in 2018.

Depreciation and amortization expense increased $13 million and $66 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter was primarily due to an increase to depreciable base of $11 million and an increase of $4 million associated with the TRM. The increase in the nine-month period was primarily due to an increase to depreciable base of $36 million and an increase of $34 million associated with the TRM.

Other (Income) and Deductions decreased $2 million and increased $5 million in the three and nine months ended September 30, 2018 , respectively. The decrease in the third quarter was primarily due to decreased non-operating retirement benefits of $2 million. The increase in the nine-month period was primarily due to lower investment earnings of $16 million, partially offset by decreased non-operating retirement benefits of $10 million.

Outlook — DTE Electric will continue to move forward in its efforts to achieve operational excellence, sustain strong cash flows, and earn its authorized return on equity. DTE Electric expects that planned significant capital investments will result in earnings growth. DTE Electric expects to continue its efforts to improve productivity and decrease costs while improving customer satisfaction with consideration of customer rate affordability. Looking forward, additional factors may impact earnings, such as weather, the outcome of regulatory proceedings, benefit plan design changes, investment returns and changes in discount rate assumptions in benefit plans and health care costs, uncertainty of legislative or regulatory actions regarding climate change, and effects of energy waste reduction programs.

DTE Electric filed a rate case with the MPSC on July 6, 2018 requesting an increase in base rates of $328 million based on a projected twelve-month period ending April 30, 2020. The requested increase in base rates is primarily due to an increase in net plant resulting from infrastructure investments, depreciation expense, as requested in the 2016 DTE Main Electric Depreciation Case Filing, and reliability improvement projects. The rate filing also requests an increase in return on equity from 10.0% to 10.5% and includes projected changes in sales, operation and maintenance expenses, and working capital. In addition, the rate filing requests an Infrastructure Recovery Mechanism to recover the incremental revenue requirement associated with certain distribution, fossil generation, and nuclear generation capital expenditures through 2022. Finally, as noted below, DTE Electric addressed Calculation C in this filing. A final MPSC order in this case is expected by May 2019.

On January 19, 2018, DTE Electric filed information with the MPSC regarding the potential change in revenue requirements due to the TCJA effective January 1, 2018, and outlined its recommended method to flow the current and deferred tax benefits of those impacts to ratepayers.

On February 22, 2018, the MPSC issued an order in this case requiring utilities, including DTE Electric, to follow a 3-step approach of credits and calculations. The first step is to establish Credit A, through contested cases. Credit A is a going-forward tax credit to reflect the reduction of the corporate tax rate from 35% to 21%. DTE Electric filed its Credit A application on May 18, 2018, reflecting a reduction in revenues of $157 million . On July 24, 2018, the MPSC issued an order approving a settlement in DTE Electric's Credit A filing reflecting a reduction in revenues of $157 million . Rates reflecting this reduction were effective August 1, 2018. The second step is to establish Credit B, through contested cases. Credit B is a backward-looking tax credit to reflect the reduction of the corporate rate of 35% to 21%, for the period January 1, 2018 up to the date Credit A is implemented. The Credit B filing is required within sixty days after Credit A is implemented. For Credit B, DTE Electric has been deferring the impact of the reduction to the corporate tax rate since January 1, 2018. DTE Electric submitted its Credit B filing on September 21, 2018, reflecting a $93 million refund effective January 2019 through June 2019. The third step is to perform Calculation C to address all remaining issues relative to the new tax law, which is primarily the remeasurement of deferred taxes and how the amounts deferred as Regulatory liabilities will flow to ratepayers. DTE Electric addressed Calculation C in its general rate case filed July 6, 2018.

GAS

The Gas segment consists principally of DTE Gas. Gas results are discussed below:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018		2017
	(In millions)
Operating Revenues — Utility operations	$	164		$	152		$	969	$	929
Cost of gas — utility	18			12			291		278
Utility Margin	146			140			678		651
Operation and maintenance	124			109			357		328
Depreciation and amortization	32			31			95		91
Taxes other than income	15			10			54		48
Operating Income (Loss)	(25		)	(10		)	172		184
Other (Income) and Deductions	12			13			39		40
Income Tax Expense (Benefit)	(7		)	(8		)	45		51
Net Income (Loss) Attributable to DTE Energy Company	$	(30	)	$	(15	)	$	88	$	93

Utility Margin increased $6 million and $27 million in the three and nine months ended September 30, 2018 , respectively. Revenues associated with certain surcharges are offset by related expenses elsewhere in DTE Energy's Consolidated Statements of Operations.

The following table details changes in various Utility Margin components relative to the comparable prior period:



	Three Months		Nine Months
	(In millions)
Weather	$	—	$	46
Midstream storage and transportation revenues	2		6
Infrastructure recovery mechanism	3		4
Revenue decoupling mechanism	—		(4		)
TCJA rate reduction reserve	—		(27		)
Other	1		2
Increase in Utility Margin	$	6	$	27



	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
	(In Bcf)
Gas Markets
Gas sales	8	8	91	77
End-user transportation	34	34	138	119
	42	42	229	196
Intermediate transportation	78	55	212	205
Total Gas sales	120	97	441	401

Operation and maintenance expense increased $15 million and $29 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter was primarily due to increased gas operations expenses of $9 million and increased uncollectible expense of $5 million due to increased arrears. The increase in the nine-month period was primarily due to increased uncollectible expense of $15 million due to increased arrears and increased gas operations expenses of $14 million.

Outlook — DTE Gas will continue to move forward in its efforts to achieve operational excellence, sustain strong cash flows, and earn its authorized return on equity. DTE Gas expects that planned significant infrastructure capital investments will result in earnings growth. Looking forward, additional factors may impact earnings such as weather, the outcome of regulatory proceedings, benefit plan design changes, and investment returns and changes in discount rate assumptions in benefit plans and health care costs. DTE Gas expects to continue its efforts to improve productivity and decrease costs while improving customer satisfaction with consideration of customer rate affordability.

On January 19, 2018, DTE Gas filed information with the MPSC regarding the potential change in revenue requirements due to the TCJA effective January 1, 2018, and outlined its recommended method to flow the current and deferred tax benefits of those impacts to ratepayers.

On February 22, 2018, the MPSC issued an order in this case requiring utilities, including DTE Gas, to follow a 3-step approach of credits and calculations. The first step is to establish Credit A, through contested cases. Credit A is a going-forward tax credit to reflect the reduction of the corporate tax rate from 35% to 21%. DTE Gas submitted its Credit A filing on March 28, 2018, reflecting a reduction in revenues of $38.2 million . The MPSC approved the $38.2 million reduction on May 30, 2018, effective July 1, 2018. With approval of the DTE Gas Rate Order on September 13, 2018, effective October 1, 2018, this separate Credit A was terminated. The second step is to establish Credit B, through contested cases. Credit B is a backward-looking tax credit to reflect the reduction of the corporate rate of 35% to 21%, for the period January 1, 2018 up to the date Credit A is implemented. The Credit B filing is required within sixty days after Credit A is implemented. For Credit B, DTE Gas has been deferring the impact of the reduction to the corporate tax rate since January 1, 2018. DTE Gas submitted its Credit B filing on July 30, 2018, reflecting a $25 million refund effective January 2019 through June 2019. On October 24, 2018, the MPSC issued an order approving the refund in DTE Gas' Credit B filing. The third step is to perform Calculation C to address all remaining issues relative to the new tax law, which is primarily the remeasurement of deferred taxes and how the amounts deferred as Regulatory liabilities will flow to ratepayers. DTE Gas is required to file Calculation C no later than November 16, 2018.

GAS STORAGE AND PIPELINES

The Gas Storage and Pipelines segment consists of the non-utility gas pipelines and storage businesses. Gas Storage and Pipelines results are discussed below:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2018			2017		2018			2017
	(In millions)
Operating Revenues — Non-utility operations	$	122		$	115	$	363		$	333
Cost of gas — Non-utility	6			8		19			23
Operation and maintenance	25			19		71			57
Depreciation and amortization	22			19		61			57
Taxes other than income	2			1		7			5
Asset (gains) losses and impairments, net	1			1		(1		)	2
Operating Income	66			67		206			189
Other (Income) and Deductions	(23		)	5		(56		)	(18		)
Income Tax Expense	16			19		52			66
Net Income	73			43		210			141
Less: Net Income Attributable to Noncontrolling Interests	7			7		22			20
Net Income Attributable to DTE Energy Company	$	66		$	36	$	188		$	121

Operating Revenues — Non-utility operations increased $7 million and $30 million in the three and nine months ended September 30, 2018 , respectively. The increase in both periods was primarily due to increased pipeline and gathering volumes.

Operation and maintenance expense increased $6 million and $14 million in the three and nine months ended September 30, 2018 , respectively. The increase in both periods was primarily due to additional compression activity on the Bluestone Pipeline and Susquehanna gathering systems and increased labor related expenses.

Other (Income) and Deductions increased $28 million and $38 million in the three and nine months ended September 30, 2018 , respectively. The increase in both periods was primarily due to increased earnings from pipeline investments and $16 million net loss on extinguishment of debt within the storage business in 2017.

Outlook — The Bluestone Pipeline and Susquehanna gathering system will be expanded with additional compression facilities and gathering lines as needed to accommodate shipper demand. DTE Energy believes its long-term agreements with producers and the quality of the natural gas reserves in the Marcellus region soundly position Bluestone Pipeline and Susquehanna gathering system for future revenues.

NEXUS Pipeline filed its request for in-service with the FERC at the end of September 2018 and received FERC authorization on October 10, 2018. NEXUS provides a transportation path for Appalachian Basin shale gas, including Utica and Marcellus shale gas, directly to consuming markets in northern Ohio, southeastern Michigan, and Dawn Ontario. DTE Energy owns a 50% partnership interest in the NEXUS Pipeline, with an investment balance of $1,176 million at September 30, 2018 .

AGS and SGG provide a platform for midstream growth and access to further investment opportunities in the Appalachian basin, an additional connection to the NEXUS Pipeline which should drive incremental volumes on the NEXUS Pipeline, and producer relationships that may lead to more partnering opportunities.

Gas Storage and Pipelines expects to maintain its steady growth by developing an asset portfolio with multiple growth platforms through investment in new projects and expansions. Gas Storage and Pipelines will continue to look for additional investment opportunities and other storage and pipeline projects at favorable prices.

POWER AND INDUSTRIAL PROJECTS

The Power and Industrial Projects segment is comprised primarily of projects that deliver energy and utility-type products and services to industrial, commercial, and institutional customers, produce reduced emissions fuel, and sell electricity and pipeline-quality gas from renewable energy projects. Power and Industrial Projects results are discussed below:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In millions)
Operating Revenues — Non-utility operations	$	612		$	537		$	1,717		$	1,592
Fuel, purchased power, and gas — non-utility	532			460			1,494			1,388
Non-utility Margin	80			77			223			204
Operation and maintenance	88			80			260			247
Depreciation and amortization	17			18			50			55
Taxes other than income	3			3			10			9
Asset (gains) losses and impairments, net	9			5			9			7
Operating Loss	(37		)	(29		)	(106		)	(114		)
Other (Income) and Deductions	(27		)	(21		)	(68		)	(59		)
Income Taxes
Expense (Benefit)	(1		)	2			(3		)	(8		)
Production Tax Credits	(61		)	(40		)	(152		)	(116		)
	(62		)	(38		)	(155		)	(124		)
Net Income	52			30			117			69
Less: Net Loss Attributable to Noncontrolling Interests	(6		)	(14		)	(29		)	(35		)
Net Income Attributable to DTE Energy Company	$	58		$	44		$	146		$	104

Operating Revenues — Non-utility operations increased $75 million and $125 million in the three and nine months ended September 30, 2018 , respectively. The increase was due to the following:



	Three Months		Nine Months
	(In millions)
Higher production offset by lower coal prices in the REF business	$	—	$	60
Higher production and higher coal prices in the REF business	62		—
Higher demand due to improved conditions in the steel business	5		42
Higher production in the renewables business	6		22
Other	2		1
	$	75	$	125

Non-utility Margin increased $3 million and $19 million in the three and nine months ended September 30, 2018 , respectively. The following table details changes in Non-utility margin relative to the comparable prior periods:



	Three Months			Nine Months
	(In millions)
New projects and higher production in the renewables business	$	6		$	18
Higher production in the REF business	(2		)	(2		)
Other	(1		)	3
	$	3		$	19

Operation and maintenance expense increased $8 million and $13 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter and nine-month period was primarily due to higher production in the REF business.

Depreciation and amortization expense decreased $1 million and $5 million in the three and nine months ended September 30, 2018 , respectively. The decrease in the third quarter and nine-month period was primarily due to a termination of a project in the REF business.

Other (Income) and Deductions increased $6 million and $9 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter and nine-month period was primarily due to higher production in the REF business offset by an insurance settlement recorded in the prior year.

Income Taxes — Production Tax Credits increased $21 million and $36 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter and nine-month period was primarily due to higher production in the REF business.

Net Loss Attributable to Noncontrolling Interests decreased $8 million and $6 million in the three and nine months ended September 30, 2018 , respectively. The decrease in the third quarter and nine-month period was primarily due to a termination of a project in the REF business.

Outlook — Power and Industrial Projects has constructed and placed in service REF facilities at ten sites including facilities located at seven third-party owned coal-fired power plants. DTE Energy has sold membership interests in two of the facilities and entered into lease arrangements in four of the facilities. DTE Energy is currently negotiating the sales of three membership interest transactions at existing facilities and will continue to optimize the remaining facilities.

Power and Industrial Projects will continue to leverage its extensive energy-related operating experience and project management capability to develop additional energy projects to serve energy intensive industrial customers.

ENERGY TRADING

Energy Trading focuses on physical and financial power and natural gas marketing and trading, structured transactions, enhancement of returns from its asset portfolio, and optimization of contracted natural gas pipeline transportation and storage positions. Energy Trading also provides natural gas, power, and related services, which may include the management of associated storage and transportation contracts on the customers' behalf, and the supply or purchase of renewable energy credits to various customers. Energy Trading results are discussed below:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2018			2017		2018		2017
	(In millions)
Operating Revenues — Non-utility operations	$	1,332		$	1,174	$	3,994	$	3,217
Purchased power and gas — non-utility	1,328			1,154		3,913		2,999
Non-utility Margin	4			20		81		218
Operation and maintenance	19			15		53		50
Depreciation and amortization	1			1		4		3
Taxes other than income	1			1		4		4
Operating Income (Loss)	(17		)	3		20		161
Other (Income) and Deductions	1			1		3		2
Income Tax Expense (Benefit)	(5		)	1		4		62
Net Income (Loss) Attributable to DTE Energy Company	$	(13	)	$	1	$	13	$	97

Operating Revenues — Non-utility operations increased $158 million and $777 million in the three and nine months ended September 30, 2018 , respectively. The increase in the third quarter and nine-month period was primarily due to higher volumes and higher gas prices in the gas structured strategy.

Non-utility Margin decreased $16 million and $137 million in the three and nine months ended September 30, 2018 , respectively. The following tables detail changes in Non-utility margin relative to the comparable prior periods:



	Three Months
	(In millions)
Unrealized Margins ^(a)
Favorable results, primarily in the gas trading strategy	$	21
Unfavorable results, primarily in gas structured and power trading strategies ^(b)	(66		)
	(45		)
Realized Margins ^(a)
Favorable results, primarily in power and environmental trading, and gas storage strategies	41
Unfavorable results, primarily in the gas trading strategy	(12		)
	29
Decrease in Non-utility Margin	$	(16	)

_______________________________________

(a)

Natural gas structured transactions typically involve a physical purchase or sale of natural gas in the future and/or natural gas basis financial instruments which are derivatives and a related non-derivative pipeline transportation contract. These gas structured transactions can result in significant earnings volatility as the derivative components are marked-to-market without revaluing the related non-derivative contracts.


(b)	Amount includes $54 million of timing related losses to gas strategies which will reverse in future periods as the underlying contracts settle.



	Nine Months
	(In millions)
Unrealized Margins ^(a)
Favorable results, primarily in the gas trading strategy	$	16
Unfavorable results, primarily in gas structured and gas storage strategies ^(b)	(151		)
	(135		)
Realized Margins ^(a)
Favorable results, primarily in gas storage, and power and environmental trading strategies	55
Unfavorable results, primarily in power full requirements, gas structured, and gas trading strategies ^(c)	(57		)
	(2		)
Decrease in Non-utility Margin	$	(137	)

_______________________________________

(a)


(b)	Amount includes $144 million of timing related losses to gas strategies which will reverse in future periods as the underlying contracts settle.


(c)	Amount includes $8 million of timing related gains to gas strategies recognized in previous periods that reversed as the underlying contracts settled.

Outlook — In the near-term, Energy Trading expects market conditions to remain challenging, and the profitability of this segment may be impacted by the volatility in commodity prices and the uncertainty of impacts associated with regulatory changes, and changes in operating rules of Regional Transmission Organizations. Significant portions of the Energy Trading portfolio are economically hedged. Most financial instruments and physical power and natural gas contracts are deemed derivatives, whereas natural gas inventory, pipeline transportation, renewable energy credits, and storage assets are not derivatives. As a result, Energy Trading will experience earnings volatility as derivatives are marked-to-market without revaluing the underlying non-derivative contracts and assets. Energy Trading's strategy is to economically manage the price risk of these underlying non-derivative contracts and assets with futures, forwards, swaps, and options. This results in gains and losses that are recognized in different interim and annual accounting periods.

See also the "Fair Value" section herein and Notes 7 and 8 to the Consolidated Financial Statements, " Fair Value " and " Financial and Other Derivative Instruments ," respectively.

CORPORATE AND OTHER

Corporate and Other includes various holding company activities, holds certain non-utility debt, and holds energy-related investments. The net loss es of $52 million and $114 million in the three and nine months ended September 30, 2018 , respectively, represent increase s of $37 million and $83 million from the net loss es of $15 million and $31 million in the comparable 2017 period. The increase in the third quarter was primarily due to a valuation allowance for the AMT credit carryover, a reduction in the corporate tax rate from the TCJA in December 2017, higher interest expense, and one-time tax items. For the nine-month period , the increase was primarily due to a valuation allowance for the AMT credit carryover, effective tax rate adjustments, a reduction in the corporate tax rate from the TCJA in December 2017, lower excess tax benefits on stock-based compensation, higher interest expense, and one-time tax items.

CAPITAL RESOURCES AND LIQUIDITY

Cash Requirements

DTE Energy uses cash to maintain and invest in the electric and natural gas utilities, to grow the non-utility businesses, to retire, and pay interest on long-term debt, and to pay dividends. DTE Energy believes it will have sufficient internal and external capital resources to fund anticipated capital and operating requirements. DTE Energy expects that cash from operations in 2018 will be approximately $2.2 billion . DTE Energy anticipates base level utility capital investments, including environmental, renewable, and energy waste reduction expenditures; expenditures for non-utility businesses; and contributions to equity method investees in 2018 of approximately $3.6 billion . DTE Energy plans to seek regulatory approval to include utility capital expenditures in regulatory rate base consistent with prior treatment. Capital spending for growth of existing or new non-utility businesses will depend on the existence of opportunities that meet strict risk-return and value creation criteria.



	Nine Months Ended September 30,
	2018			2017
	(In millions)
Cash, Cash Equivalents, and Restricted Cash
Cash Flow From (Used For)
Operating Activities
Net Income	$	922		$	832
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	826			756
Nuclear fuel amortization	39			39
Allowance for equity funds used during construction	(20		)	(17		)
Deferred income taxes	118			261
Asset (gains) losses and impairments, net	11			5
Working capital and other	151			(326		)
Net cash from operating activities	2,047			1,550
Investing Activities
Plant and equipment expenditures — utility	(1,562		)	(1,439		)
Plant and equipment expenditures — non-utility	(217		)	(133		)
Contributions to equity method investees	(545		)	(194		)
Other	(12		)	(36		)
Net cash used for investing activities	(2,336		)	(1,802		)
Financing Activities
Issuance of long-term debt, net of issuance costs	1,433			1,010
Redemption of long-term debt	(105		)	(385		)
Short-term borrowings, net	(544		)	160
Issuance of common stock	7			—
Repurchase of common stock	—			(51		)
Dividends on common stock	(459		)	(444		)
REF contributions from noncontrolling interests	43			34
Distributions to noncontrolling interests	(31		)	(29		)
Other	(40		)	(70		)
Net cash from financing activities	304			225
Net Increase (Decrease) in Cash, Cash Equ ivalents, and Restricted Cash	$	15		$	(27	)

Cash from Operating Activities

A majority of DTE Energy's operating cash flows are provided by the electric and natural gas utilities, which are significantly influenced by factors such as weather, electric retail access, regulatory deferrals, regulatory outcomes, economic conditions, changes in working capital, and operating costs.

Cash from operations increased by $497 million in 2018 due primarily to an increase in Net Income, Depreciation and amortization, and working capital adjustments, partially offset by a decrease to Deferred income taxes.

The change in working capital items in 2018 is primarily related to increases of cash from Accounts receivable, net, Inventories, Other current and noncurrent assets and liabilities, and Derivative assets and liabilities, partially offset by an increase in cash used for Accrued postretirement obligation.

Cash used for Investing Activities

Cash inflows associated with investing activities are primarily generated from the sale of assets, while cash outflows are the result of plant and equipment expenditures. In any given year, DTE Energy looks to realize cash from under-performing or non-strategic assets or matured, fully valued assets.

Capital spending within the utility businesses is primarily to maintain and improve electric generation and the electric and natural gas distribution infrastructure, and to comply with environmental regulations and renewable energy requirements.

Capital spending within the non-utility businesses is primarily for ongoing maintenance, expansion, and growth. DTE Energy looks to make growth investments that meet strict criteria in terms of strategy, management skills, risks, and returns. All new investments are analyzed for their rates of return and cash payback on a risk adjusted basis. DTE Energy has been disciplined in how it deploys capital and will not make investments unless they meet the criteria. For new business lines, DTE Energy initially invests based on research and analysis. DTE Energy starts with a limited investment, evaluates the results, and either expands or exits the business based on those results. In any given year, the amount of growth capital will be determined by the underlying cash flows of DTE Energy, with a clear understanding of any potential impact on its credit ratings.

Net cash used for investing activities increased by $534 million in 2018 due primarily to an increase in capital expenditures, and Contributions to equity method investees, primarily to the NEXUS pipeline, partially offset by a decrease in Investing Activities — Other, primarily the result of two 2017 acquisitions of landfill gas facilities, which are presented in Investing Activities — Other.

Cash from Financing Activities

DTE Energy relies on both short-term borrowing and long-term financing as a source of funding for capital requirements not satisfied by its operations.

DTE Energy's strategy is to have a targeted debt portfolio blend of fixed and variable interest rates and maturity. DTE Energy continually evaluates its leverage target, which is currently 50% to 54%, to ensure it is consistent with the objective of a strong investment grade debt rating.

Net cash from financing activities increased by $79 million in 2018 due primarily to an increase in Issuance of long-term debt, and decreases in Redemptions of long-term debt and Repurchases of common stock, partially offset by cash used for Short-term borrowings.

Outlook

DTE Energy expects cash flows from operations to increase over the long-term, primarily as a result of growth from the utility and non-utility businesses. Growth in the utilities is expected to be driven primarily by capital spending to maintain and improve the electric generation and electric and natural gas distribution infrastructure and to comply with new and existing state and federal regulations that will result in additional environmental and renewable energy investments which will increase the base from which rates are determined. Non-utility growth is expected from additional investments, primarily in the Gas Storage and Pipelines and Power and Industrial Projects segments.

DTE Energy may be impacted by the timing of collection or refund of various recovery and tracking mechanisms, as a result of timing of MPSC orders. Energy prices are likely to be a source of volatility with regard to working capital requirements for the foreseeable future. DTE Energy continues its efforts to identify opportunities to improve cash flows through working capital initiatives and maintaining flexibility in the timing and extent of long-term capital projects.

DTE Energy has approximately $1 million in long-term debt, including capital leases, maturing in the next twelve months. The repayment of the debt is expected to be paid through internally generated funds or the issuance of long-term debt.

DTE Energy has approximately $2.0 billion of available liquidity at September 30, 2018 , consisting of cash and amounts available under unsecured revolving credit agreements.

Through September 30, 2018 , DTE Energy has issued approximately $260 million of equity through the dividend reinvestment plan and pension and other employee benefit plans.

DTE Energy does not anticipate making any additional contributions to its pension or other postretirement benefit plans in 2018 .

Various subsidiaries and equity investees of DTE Energy have entered into contracts which contain ratings triggers and are guaranteed by DTE Energy. These contracts contain provisions which allow the counterparties to require that DTE Energy post cash or letters of credit as collateral in the event that DTE Energy's credit rating is downgraded below investment grade. Certain of these provisions (known as "hard triggers") state specific circumstances under which DTE Energy can be required to post collateral upon the occurrence of a credit downgrade, while other provisions (known as "soft triggers") are not as specific. For contracts with soft triggers, it is difficult to estimate the amount of collateral which may be requested by counterparties and/or which DTE Energy may ultimately be required to post. The amount of such collateral which could be requested fluctuates based on commodity prices (primarily natural gas, power, and coal) and the provisions and maturities of the underlying transactions. As of September 30, 2018 , DTE Energy's contractual obligation to post collateral in the form of cash or letters of credit in the event of a downgrade to below investment grade, under both hard trigger and soft trigger provisions, was $502 million .

DTE Energy believes it will have sufficient operating flexibility, cash resources, and funding sources to maintain adequate amounts of liquidity and to meet future operating cash and capital expenditure needs. However, virtually all of DTE Energy's businesses are capital intensive, or require access to capital, and the inability to access adequate capital could adversely impact earnings and cash flows.

See Notes 5, 9, 10, 11, and 12 to the Consolidated Financial Statements, " Regulatory Matters ," " Long-Term Debt ," " Short-Term Credit Arrangements and Borrowings ," " Commitments and Contingencies ," and " Retirement Benefits and Trusteed Assets ," respectively.

NEW ACCOUNTING PRONOUNCEMENTS

See Note 3 to the Consolidated Financial Statements, " New Accounting Pronouncements ."

FAIR VALUE

Derivatives are generally recorded at fair value and shown as Derivative assets or liabilities. Contracts DTE Energy typically classifies as derivative instruments include power, natural gas, oil, and certain coal forwards, futures, options and swaps, and foreign currency exchange contracts. Items DTE Energy does not generally account for as derivatives include natural gas inventory, pipeline transportation contracts, renewable energy credits, and storage assets. See Notes 7 and 8 to the Consolidated Financial Statements, " Fair Value " and " Financial and Other Derivative Instruments ," respectively.

The tables below do not include the expected earnings impact of non-derivative natural gas storage, transportation, certain power contracts, and renewable energy credits which are subject to accrual accounting. Consequently, gains and losses from these positions may not match with the related physical and financial hedging instruments in some reporting periods, resulting in volatility in the Registrants' reported period-by-period earnings; however, the financial impact of the timing differences will reverse at the time of physical delivery and/or settlement.

The Registrants manage their MTM risk on a portfolio basis based upon the delivery period of their contracts and the individual components of the risks within each contract. Accordingly, the Registrants record and manage the energy purchase and sale obligations under their contracts in separate components based on the commodity (e.g. electricity or natural gas), the product (e.g. electricity for delivery during peak or off-peak hours), the delivery location (e.g. by region), the risk profile (e.g. forward or option), and the delivery period (e.g. by month and year).

The Registrants have established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). For further discussion of the fair value hierarchy, see Note 7 to the Consolidated Financial Statements, " Fair Value ."

The following table provides details on changes in DTE Energy's MTM net asset (or liability) position:



	DTE Energy
	(In millions)
MTM at December 31, 2017	$	8
Reclassified to realized upon settlement	69
Changes in fair value recorded to income	(85		)
Amounts recorded to unrealized income	(16		)
Changes in fair value recorded in regulatory liabilities	6
Change in collateral	(15		)
MTM at September 30, 2018	$	(17	)

The table below shows the maturity of DTE Energy's MTM positions. The positions from 2021 and beyond principally represent longer tenor gas structured transactions:



Source of Fair Value	2018			2019			2020			2021 and Beyond			Total Fair Value
	(In millions)
Level 1	$	9		$	3		$	(3	)	$	(3	)	$	6
Level 2	8			7			4			9			28
Level 3	(10		)	(1		)	3			(42		)	(50		)
MTM before collateral adjustments	$	7		$	9		$	4		$	(36	)	(16		)
Collateral adjustments													(1		)
MTM at September 30, 2018													$	(17	)

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Market Price Risk

The Electric and Gas businesses have commodity price risk, primarily related to the purchases of coal, natural gas, uranium, and electricity. However, the Registrants do not bear significant exposure to earnings risk, as such changes are included in the PSCR and GCR regulatory rate-recovery mechanisms. In addition, changes in the price of natural gas can impact the valuation of lost and stolen gas, storage sales, and transportation services revenue at the Gas segment. The Gas segment manages its market price risk related to storage sales revenue primarily through the sale of long-term storage contracts. The Registrants are exposed to short-term cash flow or liquidity risk as a result of the time differential between actual cash settlements and regulatory rate recovery.

DTE Energy's Gas Storage and Pipelines segment has exposure to natural gas price fluctuations which impact the pricing for natural gas storage, gathering, and transportation. DTE Energy manages its exposure through the use of short, medium, and long-term storage, gathering, and transportation contracts.

DTE Energy's Power and Industrial Projects business segment is subject to electricity, natural gas, and coal product price risk. DTE Energy manages its exposure to commodity price risk through the use of long-term contracts.

DTE Energy's Energy Trading business segment has exposure to electricity, natural gas, coal, crude oil, heating oil, and foreign currency exchange price fluctuations. These risks are managed by the energy marketing and trading operations through the use of forward energy, capacity, storage, options, and futures contracts, within pre-determined risk parameters.

Credit Risk

The Registrants regularly review contingent matters relating to customers and their contracts and record provisions for amounts considered at risk of probable loss in the allowance for doubtful accounts. The Registrants believe their accrued amounts are adequate for probable loss.

Trading Activities

DTE Energy is exposed to credit risk through trading activities. Credit risk is the potential loss that may result if the trading counterparties fail to meet their contractual obligations. DTE Energy utilizes both external and internal credit assessments when determining the credit quality of trading counterparties.

The following table displays the credit quality of DTE Energy's trading counterparties as of September 30, 2018 :



	Credit Exposure Before Cash Collateral		Cash Collateral			Net Credit Exposure
	(In millions)
Investment Grade ^(a)
A− and Greater	$	295	$	—		$	295
BBB+ and BBB	270		—			270
BBB−	39		—			39
Total Investment Grade	604		—			604
Non-investment grade ^(b)	6		—			6
Internally Rated — investment grade ^(c)	343		(1		)	342
Internally Rated — non-investment grade ^(d)	33		(8		)	25
Total	$	986	$	(9	)	$	977

_______________________________________


(a)	This category includes counterparties with minimum credit ratings of Baa3 assigned by Moody’s Investors Service (Moody’s) or BBB- assigned by Standard & Poor’s Rating Group, a division of McGraw-Hill Companies, Inc. (Standard & Poor’s). The five largest counterparty exposures, combined, for this category represented 19% of the total gross credit exposure.


(b)	This category includes counterparties with credit ratings that are below investment grade. The five largest counterparty exposures, combined, for this category represented 1% of the total gross credit exposure.


(c)	This category includes counterparties that have not been rated by Moody’s or Standard & Poor’s, but are considered investment grade based on DTE Energy’s evaluation of the counterparty’s creditworthiness. The five largest counterparty exposures, combined, for this category represented 14% of the total gross credit exposure.


(d)	This category includes counterparties that have not been rated by Moody’s or Standard & Poor’s, and are considered non-investment grade based on DTE Energy’s evaluation of the counterparty’s creditworthiness. The five largest counterparty exposures, combined, for this category represented 1% of the total gross credit exposure.

Other

The Registrants engage in business with customers that are non-investment grade. The Registrants closely monitor the credit ratings of these customers and, when deemed necessary and permitted under the tariffs, request collateral or guarantees from such customers to secure their obligations.

Interest Rate Risk

DTE Energy is subject to interest rate risk in connection with the issuance of debt. In order to manage interest costs, DTE Energy may use treasury locks and interest rate swap agreements. DTE Energy's exposure to interest rate risk arises primarily from changes in U.S. Treasury rates, commercial paper rates, and London Inter-Bank Offered Rates (LIBOR). As of September 30, 2018 , DTE Energy had a floating rate debt-to-total debt ratio of 0.6% .

Foreign Currency Exchange Risk

DTE Energy has foreign currency exchange risk arising from market price fluctuations associated with fixed priced contracts. These contracts are denominated in Canadian dollars and are primarily for the purchase and sale of natural gas and power, as well as for long-term transportation capacity. To limit DTE Energy's exposure to foreign currency exchange fluctuations, DTE Energy has entered into a series of foreign currency exchange forward contracts through June 2022 .

Summary of Sensitivity Analyses

Sensitivity analyses were performed on the fair values of commodity contracts for DTE Energy and long-term debt obligations for the Registrants. The commodity contracts listed below principally relate to energy marketing and trading activities. The sensitivity analyses involved increasing and decreasing forward prices and rates at September 30, 2018 and 2017 by a hypothetical 10% and calculating the resulting change in the fair values.

The results of the sensitivity analyses:



	Assuming a 10% Increase in Prices/Rates						Assuming a 10% Decrease in Prices/Rates
	As of September 30,						As of September 30,
Activity	2018			2017			2018			2017			Change in the Fair Value of
	(In millions)
Gas contracts	$	(7	)	$	3		$	9		$	(3	)	Commodity contracts
Power contracts	$	8		$	9		$	(11	)	$	(11	)	Commodity contracts
Interest rate risk — DTE Energy	$	(618	)	$	(545	)	$	649		$	548		Long-term debt
Interest rate risk — DTE Electric	$	(282	)	$	(249	)	$	304		$	267		Long-term debt

For further discussion of market risk, see Note 8 to the Consolidated Financial Statements, " Financial and Other Derivative Instruments ."

Item 4. Controls and Procedures

DTE Energy

(a) Evaluation of disclosure controls and procedures

Management of DTE Energy carried out an evaluation, under the supervision and with the participation of DTE Energy's Chief Executive Officer (CEO) and Chief Financial Officer (CFO), of the effectiveness of the design and operation of DTE Energy's disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of September 30, 2018 , which is the end of the period covered by this report. Based on this evaluation, DTE Energy's CEO and CFO have concluded that such disclosure controls and procedures are effective in providing reasonable assurance that information required to be disclosed by DTE Energy in reports that it files or submits under the Exchange Act (i) is recorded, processed, summarized, and reported within the time periods specified in the U.S. Securities and Exchange Commission's rules and forms and (ii) is accumulated and communicated to DTE Energy's management, including its CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. Due to the inherent limitations in the effectiveness of any disclosure controls and procedures, management cannot provide absolute assurance that the objectives of its disclosure controls and procedures will be attained.

(b) Changes in internal control over financial reporting

There have been no changes in DTE Energy's internal control over financial reporting during the quarter ended September 30, 2018 that have materially affected, or are reasonably likely to materially affect, DTE Energy's internal control over financial reporting.

DTE Electric

(a) Evaluation of disclosure controls and procedures

Management of DTE Electric carried out an evaluation, under the supervision and with the participation of DTE Electric's Chief Executive Officer (CEO) and Chief Financial Officer (CFO), of the effectiveness of the design and operation of DTE Electric's disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of September 30, 2018 , which is the end of the period covered by this report. Based on this evaluation, DTE Electric's CEO and CFO have concluded that such disclosure controls and procedures are effective in providing reasonable assurance that information required to be disclosed by DTE Electric in reports that it files or submits under the Exchange Act (i) is recorded, processed, summarized, and reported within the time periods specified in the U.S. Securities and Exchange Commission's rules and forms and (ii) is accumulated and communicated to DTE Electric's management, including its CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. Due to the inherent limitations in the effectiveness of any disclosure controls and procedures, management cannot provide absolute assurance that the objectives of its disclosure controls and procedures will be attained.

(b) Changes in internal control over financial reporting

There have been no changes in DTE Electric's internal control over financial reporting during the quarter ended September 30, 2018 that have materially affected, or are reasonably likely to materially affect, DTE Electric's internal control over financial reporting.

Part II — Other Information

Item 1. Legal Proceeding s

An FOV was issued by the EPA to DTE Electric in 2017 alleging violations related to exceedances of mercury emission limits for the Monroe Power Plant. DTE Electric and the EPA have agreed to address the alleged violations through a consent agreement and the payment of a $120,000 civil penalty.

In March 2018, the Trenton Channel Power Plant experienced exceedances of its mercury emission limits. The exceedances were reported to the EPA and the MDEQ. On September 12, 2018, the EPA issued a NOV. DTE Electric is currently working with the EPA to address the NOV. At this time, DTE Electric cannot predict the impact of the NOV.

For more information on legal proceedings and matters related to the Registrants, see Notes 5 and 11 to the Consolidated Financial Statements, " Regulatory Matters " and " Commitments and Contingencies ," respectively.

Item 1A. Risk Factors

There are various risks associated with the operations of the Registrants' businesses. To provide a framework to understand the operating environment of the Registrants, a brief explanation of the more significant risks associated with the Registrants' businesses is provided in Part 1, Item 1A. Risk Factors in DTE Energy's and DTE Electric's combined 2017 Annual Report on Form 10-K. Although the Registrants have tried to identify and discuss key risk factors, others could emerge in the future.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Purchases of DTE Energy Equity Securities by the Issuer and Affiliated Purchasers

The following table provides information about DTE Energy purchases of equity securities that are registered by DTE Energy pursuant to Section 12 of the Exchange Act of 1934 for the quarter ended September 30, 2018 :



	Number of Shares Purchased ^(a)	Average Price Paid per Share ^(a)		Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Average Price Paid per Share	Maximum Dollar Value that May Yet Be Purchased Under the Plans or Programs
07/01/2018 — 07/31/2018	1,948	$	103.35	—	—	—
08/01/2018 — 08/31/2018	1,273	$	109.28	—	—	—
09/01/2018 — 09/30/2018	298	$	111.27	—	—	—
Total	3,519			—

_______________________________________


(a)	Represents shares of common stock withheld to satisfy income tax obligations upon the vesting of restricted stock based on the price in effect at the grant date.

Item 6. Exhibits



Exhibit Number	Description	DTE Energy	DTE Electric

	(i) Exhibits filed herewith:

4.300	Forty-ninth Supplemental Indenture dated as of August 1, 2018, to Indenture of Mortgage and Deed of Trust, dated as of March 1, 1944, between DTE Gas Company and Citibank, N.A., trustee. (2018 Series B and C)	X

4.301	Supplemental Indenture dated as of August 1, 2018, to the Amended and Restated Indenture, dated as of April 9, 1924, between DTE Energy Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee. (2018 Series D)	X

12.87	Computation of Ratio of Earnings to Fixed Charges	X

12.88	Computation of Ratio of Earnings to Fixed Charges		X

31.153	Chief Executive Officer Section 302 Form 10-Q Certification of Periodic Report	X

31.154	Chief Financial Officer Section 302 Form 10-Q Certification of Periodic Report	X

31.155	Chief Executive Officer Section 302 Form 10-Q Certification of Periodic Report		X

31.156	Chief Financial Officer Section 302 Form 10-Q Certification of Periodic Report		X

101.INS	XBRL Instance Document	X	X

101.SCH	XBRL Taxonomy Extension Schema	X	X

101.CAL	XBRL Taxonomy Extension Calculation Linkbase	X	X

101.DEF	XBRL Taxonomy Extension Definition Database	X	X

101.LAB	XBRL Taxonomy Extension Label Linkbase	X	X

101.PRE	XBRL Taxonomy Extension Presentation Linkbase	X	X

	(ii) Exhibits furnished herewith:

32.153	Chief Executive Officer Section 906 Form 10-Q Certification of Periodic Report	X

32.154	Chief Financial Officer Section 906 Form 10-Q Certification of Periodic Report	X

32.155	Chief Executive Officer Section 906 Form 10-Q Certification of Periodic Report		X

32.156	Chief Financial Officer Section 906 Form 10-Q Certification of Periodic Report		X

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrants have duly caused this report to be signed on their behalf by the undersigned, thereunto duly authorized. The signature for each undersigned Registrant shall be deemed to relate only to matters having reference to such Registrant and any subsidiaries thereof.



Date:	October 24, 2018
			DTE ENERGY COMPANY

		By:	/S/ JEFFREY A. JEWELL
			Jeffrey A. Jewell Vice President, Controller, and Chief Accounting Officer
			(Duly Authorized Officer)


			DTE ELECTRIC COMPANY

		By:	/S/ JEFFREY A. JEWELL
			Jeffrey A. Jewell Vice President, Controller, and Chief Accounting Officer
			(Duly Authorized Officer)

EXHIBIT 4.300

FORTY-NINTH

SUPPLEMENTAL INDENTURE

INDENTURE OF MORTGAGE AND

DEED OF TRUST

DATED AS OF MARCH 1, 1944

AS RESTATED IN

PART II OF THE TWENTY-NINTH

SUPPLEMENTAL INDENTURE DATED AS OF JULY 15, 1989

WHICH BECAME EFFECTIVE ON APRIL 1, 1994

DTE GAS COMPANY

formerly known as

Michigan Consolidated Gas Company

CITIBANK, N.A.,

TRUSTEE

DATED AS OF AUGUST 1, 2018

CREATING TWO ISSUES OF FIRST MORTGAGE BONDS,

DESIGNATED AS

2018 SERIES B BONDS

2018 SERIES C BONDS

DTE GAS COMPANY

FORTY-NINTH SUPPLEMENTAL INDENTURE

DATED AS OF AUGUST 1, 2018

SUPPLEMENTAL TO INDENTURE OF MORTGAGE

AND DEED OF TRUST

DATED AS OF MARCH 1, 1944

TABLE OF CONTENTS



	PAGE
ARTICLE I ESTABLISHMENT OF AN ISSUE OF FIRST MORTGAGE BONDS, OF THE SERIES DESIGNATED AND DISTINGUISHED AS “2018 SERIES B BONDS”	5
SECTION 1	5
SECTION 2	5
SECTION 3	7
SECTION 4	14
SECTION 5	15
ARTICLE II ESTABLISHMENT OF AN ISSUE OF FIRST MORTGAGE BONDS, OF THE SERIES DESIGNATED AND DISTINGUISHED AS “2018 SERIES C BONDS”	16
SECTION 1	16
SECTION 2	16
SECTION 3	18
SECTION 4	25
SECTION 5	26
ARTICLE III ISSUE OF BONDS	27
ARTICLE IV THE TRUSTEE	27
ARTICLE V RECORDING AND FILING OF SUPPLEMENTAL INDENTURE DATED AS OF SEPTEMBER 1, 2017	27
ARTICLE VI RECORDING OF AFFIDAVIT OF FACTS AFFECTING REAL PROPERTY	30
ARTICLE VII MISCELLANEOUS PROVISIONS	30

THIS FORTY-NINTH SUPPLEMENTAL INDENTURE, dated as of the 1st day of August, 2018, between DTE GAS COMPANY, formerly known as Michigan Consolidated Gas Company, a corporation duly organized and existing under and by virtue of the laws of the State of Michigan (hereinafter called the “Company”), having its principal place of business at One Energy Plaza, Detroit, Michigan, 48226 and CITIBANK, N.A., a national banking association incorporated and existing under and by virtue of the laws of the United States of America, having an office at 388 Greenwich Street in the Borough of Manhattan, the City of New York, New York, 10013 as successor trustee (hereinafter with its predecessors as trustee called the “Mortgage Trustee” or the “Trustee”):

WHEREAS, the Company has heretofore executed and delivered to the Trustee an Indenture of Mortgage and Deed of Trust (the “Original Indenture”), dated as of March 1, 1944;

WHEREAS, the Company has heretofore executed and delivered to the Trustee the Twenty-ninth Supplemental Indenture, which became effective April 1, 1994, to provide for the modification and restatement of the Original Indenture as previously amended (as so amended, supplemented and modified the “Indenture”), and to secure the Company's First Mortgage Bonds, unlimited in aggregate principal amount except as therein otherwise provided, issued pursuant to the:

Thirtieth Supplemental Indenture, dated as of September 1, 1991;

Thirty-first Supplemental Indenture, dated as of December 15, 1991;

Thirty-second Supplemental Indenture, dated as of January 5, 1993;

Thirty-third Supplemental Indenture, dated as of May 1, 1995;

Thirty-fourth Supplemental Indenture, dated as of November 1, 1996;

Thirty-fifth Supplemental Indenture, dated as of June 18, 1998;

Thirty-sixth Supplemental Indenture, dated as of August 15, 2001;

Thirty-seventh Supplemental Indenture, dated as of February 15, 2003;

Thirty-eighth Supplemental Indenture, dated as of October 1, 2004;

Thirty-ninth Supplemental Indenture, dated as of April 1, 2008;

Fortieth Supplemental Indenture, dated as of June 1, 2008;

Forty-first Supplemental Indenture, dated as of August 1, 2008;

Forty-second Supplemental Indenture, dated as of December 1, 2008;

Forty-third Supplemental Indenture, dated as of December 1, 2012;

Forty-fourth Supplemental Indenture, dated as of December 1, 2013;

Forty-fifth Supplemental Indenture, dated as of December 1, 2014;

Forty-sixth Supplemental Indenture, dated as of August 1, 2015;

Forty-seventh Supplemental Indenture, dated as of December 1, 2016; and

Forty-eighth Supplemental Indenture, dated as of September 1, 2017;

WHEREAS, at the date hereof there were outstanding First Mortgage Bonds of the Company issued under the Indenture, of 15 series in the principal amounts set forth below (including Collateral Bonds):



Designation of Series	Amount Initially Issued		Amount Outstanding
First Mortgage Bonds

2012 Series D First Mortgage Bonds		$70,000,000		$70,000,000
2013 Series C First Mortgage Bonds		$50,000,000		$50,000,000
2013 Series D First Mortgage Bonds		$70,000,000		$70,000,000
2013 Series E First Mortgage Bonds		$50,000,000		$50,000,000
2014 Series F First Mortgage Bonds 2015 Series C First Mortgage Bonds 2015 Series D First Mortgage Bonds	$150,000,000 $40,000,000 $125,000,000		$150,000,000 $40,000,000 $125,000,000
2016 Series G First Mortgage Bonds		$125,000,000		$125,000,000
2017 Series C First Mortgage Bonds		$40,000,000		$40,000,000
2017 Series D First Mortgage Bonds		$40,000,000		$40,000,000

Collateral Bonds
(Senior Notes)

5.70% Collateral Bonds due 2033		$200,000,000		$200,000,000
2004 Series E Collateral Bonds		$120,000,000		$120,000,000
2008 Series C Collateral Bonds		$25,000,000		$25,000,000
2008 Series F Collateral Bonds		$75,000,000		$75,000,000
2008 Series I Collateral Bonds		$50,000,000		$50,000,000

WHEREAS, the Company desires in and by this Supplemental Indenture to establish two series of bonds to be issued under the Indenture designated and distinguished as 2018 Series B Bonds and 2018 Series C Bonds (herein collectively sometimes called the “Bonds”), to designate the terms thereof, to specify the particulars necessary to describe and define the same and to specify such other provisions and agreements in respect thereof as are in the Indenture provided or permitted; and

WHEREAS, all the conditions and requirements necessary to make this Supplemental Indenture, when duly executed and delivered, a valid, binding and legal instrument in accordance with its terms and for the purposes herein expressed, have been done, performed and fulfilled, and the execution and delivery of this Supplemental Indenture in the form and with the terms hereof have been in all respects duly authorized;

ARTICLE I
ESTABLISHMENT OF AN ISSUE OF
FIRST MORTGAGE BONDS, OF THE SERIES
DESIGNATED AND DISTINGUISHED AS “2018 SERIES B BONDS”

SECTION 1

There is hereby established a series of bonds to be issued under and secured by the Indenture, to be known as “First Mortgage Bonds,” designated and distinguished as “2018 Series B Bonds” of the Company. The 2018 Series B Bonds shall be limited in aggregate principal amount to $195,000,000 except as provided in Article II of the Indenture and in this Supplemental Indenture with respect to transfers, exchanges and replacements of the 2018 Series B Bonds. The 2018 Series B Bonds shall be registered bonds without coupons and shall be dated as of the date of the authentication thereof by the Trustee.

The 2018 Series B Bonds shall mature on the 1st day of September, 2028 (subject to earlier redemption, as provided herein), shall bear interest at the rate of 3.81% per annum, payable semi-annually on the 1st day of March and September of each year and at maturity (each a “2018 Series B Interest Payment Date”), beginning on March 1, 2019. The principal, Make-Whole Amount (as defined below), if any, and interest on the 2018 Series B Bonds shall be payable in lawful money of the United States of America; the place where such principal and Make-Whole Amount, if any, shall be payable shall be the corporate trust office of the Trustee in the Borough of Manhattan, the City of New York, New York, and the place where such interest shall be payable shall be the office or agency of the Company in said Borough of Manhattan, the City of New York, New York. The 2018 Series B Bonds shall have such other terms as set forth in the form of 2018 Series B Bond provided in Section 3.

SECTION 2

The 2018 Series B Bonds shall be subject to redemption at the option of the Company, in whole at any time or in part from time to time (any such date of redemption, a “2018 Series B Redemption Date”), at the applicable redemption price (“2018 Series B Redemption Price”) set forth below.

At any time prior to June 1, 2028 (the “2018 Series B Par Call Date”), the 2018 Series B Redemption Price will be equal to 100% of the principal amount of the 2018 Series B Bonds to be redeemed on the 2018 Series B Redemption Date together with the Make-Whole Amount (as defined in the form of 2018 Series B Bond provided in Section 3), if any, plus, in each case, accrued and unpaid interest thereon to the 2018 Series B Redemption Date.

At any time on or after the 2018 Series B Par Call Date, the 2018 Series B Redemption Price will be equal to 100% of the principal amount of the bonds of 2018 Series B to be redeemed plus accrued and unpaid interest thereon to the redemption date.

Notwithstanding the foregoing, installments of interest on the 2018 Series B Bonds that are due and payable on 2018 Series B Interest Payment Dates falling on or prior to the 2018 Series B Redemption Date will be payable on the 2018 Series B Interest Payment Date to the registered holders as of the close of business on the relevant record date.

Notice of redemption shall be given to the holders of the 2018 Series B Bonds to be redeemed not more than 60 nor less than 30 days prior to the 2018 Series B Redemption Date, as provided in Section 4.05 of the Indenture. Each such notice shall specify such optional 2018 Series B Redemption Date, the aggregate principal amount of the 2018 Series B Bonds to be redeemed on such date, the principal amount of each 2018 Series B Bond held by such holder to be redeemed, and the interest to be paid on the 2018 Series B Redemption Date with respect to such principal amount being prepaid. In addition, if the 2018 Series B Redemption Date is prior to the 2018 Series B Par Call Date, each such notice shall be accompanied by a certificate of a senior financial officer of the Company as to the estimated Make-Whole Amount due in connection with such redemption (calculated as if the date of such notice were the date of the redemption), setting forth the details of such computation. The Make-Whole Amount shall be determined by the Company two Business Days prior to the applicable 2018 Series B Redemption Date and the Company shall deliver to holders of the 2018 Series B Bonds and to the Trustee a certificate of a senior financial officer specifying the calculation of such Make-Whole Amount as of the 2018 Series B Redemption Date.

If the 2018 Series B Bonds are only partially redeemed by the Company, the Trustee shall select which 2018 Series B Bonds are to be redeemed pro rata among all of the 2018 Series B Bonds at the time outstanding in proportion, as nearly as practicable, to the respective unpaid principal amounts thereof and otherwise in accordance with the terms of the Indenture. In the event of redemption of the 2018 Series B Bonds in part only, a new 2018 Series B Bond or 2018 Series B Bonds for the unredeemed portion will be issued in the name or names of the holders thereof upon the surrender or cancellation thereof.

If money sufficient to pay the applicable 2018 Series B Redemption Price with respect to the 2018 Series B Bonds to be redeemed on the applicable 2018 Series B Redemption Date, together with accrued interest to the 2018 Series B Redemption Date, is deposited with the Trustee on or before the related 2018 Series B Redemption Date and certain other conditions are satisfied, then

the 2018 Series B Bonds to be redeemed shall no longer be secured by, or entitled to any lien or benefit of, the Indenture as provided by Section 4.04 of the Indenture.

The 2018 Series B Bonds will not be entitled to any sinking fund and will not be redeemable other than as provided in this Section 2 and the form of 2018 Series B Bond provided in Section 3.

SECTION 3

The 2018 Series B Bonds shall be registered bonds without coupons. The Trustee shall be the registrar and paying agent for the 2018 Series B Bonds, which duties it hereby accepts. The 2018 Series B Bonds may be issued in minimum denominations of $100,000 or any integral multiple of $1,000 in excess thereof.

The forms of 2018 Series B Bonds shall be substantially as follows:

[FORM OF DTE GAS COMPANY 3.81% FIRST MORTGAGE BONDS 2018 SERIES B DUE 2028]

PPN:

No. R-___ $_________________

THE SECURITIES EVIDENCED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT (A) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE STATES OF THE UNITED STATES. IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE COMPANY AND THE TRUSTEE SUCH CERTIFICATES AND OTHER INFORMATION AS THE TRUSTEE MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.

DTE GAS COMPANY

3.81% MORTGAGE BONDS

2018 SERIES B DUE 2028

Principal Amount: $____________

Authorized Denomination: $100,000 or any integral multiple of $1,000 in excess thereof.

Regular Record Date: close of business on the 15th calendar day (whether or not a Business Day) prior to the relevant Interest Payment Date

Original Issue Date: August 23, 2018

Stated Maturity: September 1, 2028

Interest Payment Dates: March 1 and September 1 of each year, beginning March 1, 2019.

Interest Rate: 3.81% per annum

DTE GAS COMPANY (hereinafter called the “Company”), a corporation of the State of Michigan, for value received, hereby promises to pay to ___________, or registered assigns, the sum of _________ Dollars ($_________) on the Stated Maturity specified above, in the coin or currency of the United States of America, and to pay interest thereon from the Original Issue Date specified above, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually in arrears on each Interest Payment Date as specified above, commencing on March 1, 2019 and on the Stated Maturity at the Interest Rate per annum specified above until the principal hereof is paid or made available for payment, and on any overdue principal and Make-Whole Amount (defined below) and, to the extent lawful, on any overdue installment of interest. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture, be paid to the person in whose name this bond is registered at the close of business on the Regular Record Date as specified above next preceding such Interest Payment Date; provided that any interest payable at Stated Maturity or on a Redemption Date (defined below) will be paid to the person to whom principal is payable. Except as otherwise provided in the Indenture, any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the holder on such Regular Record Date and may either be paid to the person in whose name this bond is registered at the close of business on a special record date for the payment of such defaulted interest to be fixed by the Trustee, notice whereof shall be given to holders of bonds of this series not less than 10 days prior to such special record date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange, if any, on which the bonds of this series shall be listed, and upon such notice as may be required by any such exchange, all as more fully provided in the Indenture.

Payments of interest on this bond will include interest accrued to but excluding the respective Interest Payment Dates. Interest payments for this bond shall be computed and paid on the basis of a 360-day year consisting of twelve 30-day months. The Company shall pay interest on overdue principal and Make-Whole Amount, if any, and, to the extent lawful, on overdue installments of interest at the rate per annum borne by this bond. In the event that any Interest Payment Date, Redemption Date or Stated Maturity is not a Business Day, then the required payment of principal, Make-Whole Amount, if any, and interest will be made on the next succeeding day that is a Business Day (and without any interest or other payment in respect of any such delay). “Business Day” means any day other than a day on which banking institutions in the State of New York or the State of Michigan are authorized or obligated pursuant to law or executive order to close.

Payment of principal of, Make-Whole Amount, if any, and interest on the bonds of this series shall be made in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts. Payments of principal, Make-Whole Amount, if any, and interest due at the Stated Maturity or earlier redemption of such bonds shall be made at the office of the Trustee upon surrender of such bonds to the Trustee, and payments of interest shall be made, at the option of the Company, subject to such surrender where applicable, (A) by check mailed to the address of the person entitled thereto as such address shall appear in the bond register of the Trustee maintained for such purpose or (B) by wire transfer at such place and to such account at a banking institution in the United States as may be designated in writing to the Trustee at least fourteen (14) days prior to the date for payment by the person entitled thereto. Notwithstanding the foregoing, so long as any bond is held by an Institutional Investor (as defined in the Bond Purchase Agreement referenced below), payment of principal, Make-Whole Amount, if any, and interest on the bonds held by such holder shall be made in the manner specified in the Bond Purchase Agreement dated as of August 23, 2018 among the Company and the purchasers party thereto.

The bonds represented by this certificate, of the series hereinafter specified, are bonds of the Company (herein called the “bonds”) known as its “First Mortgage Bonds,” issued and to be issued in one or more series under, and all equally and ratably secured by, an Indenture of Mortgage and Deed of Trust dated as of March 1, 1944, duly executed by the Company to Citibank, N.A., successor trustee (“Trustee”), as restated in Part II of the Twenty-ninth Supplemental Indenture dated as of July 15, 1989, which became effective on April 1, 1994, to which indenture and all indentures supplemental thereto executed on and after July 15, 1989 reference is hereby made for a description of the property mortgaged and pledged, the nature and extent of the security, the terms and conditions upon which the bonds are, and are to be, issued and secured, and the rights of the holders of the bonds and of the Trustee in respect of such security (which indenture and all indentures supplemental thereto, including the Forty-ninth Supplemental Indenture dated as of August 1, 2018 referred to below, are hereinafter collectively called the “Indenture”). As provided in the Indenture, the bonds may be issued thereunder for various principal sums and are issuable in series, which may mature at different times, may bear interest at different rates and may otherwise vary as therein provided. The bonds represented by this certificate are part of a series designated “3.81% First Mortgage Bonds 2018 Series B” (herein called the “Bonds”), created by the Forty-ninth Supplemental Indenture dated as of August 1, 2018 as provided for in said Indenture.

With the consent of the Company and to the extent permitted by and as provided in the Indenture, the rights and obligations of the Company, the rights and obligations of the holders of the Bonds, and the terms and provisions of the Indenture may be modified or altered by such affirmative vote or votes of the holders of the Bonds then outstanding as are specified in the Indenture.

In case an Event of Default as defined in the Indenture shall occur, the principal of the Bonds may become or be declared due and payable in the manner, with the effect, and subject to the conditions provided in the Indenture. Upon any such declaration, the Company shall also pay to the holders of the Bonds the Make-Whole Amount on the Bonds, if any, determined as of the date the Bonds shall have been declared due and payable.

No recourse shall be had for the payment of the principal of, Make-Whole Amount, if any, or the interest on, the Bonds, or for any claim based hereon or otherwise in respect of the Bonds or the Indenture, against any incorporator, stockholder, director or officer, past, present or future, of the Company, as such, or any predecessor or successor corporation, either directly or through the Company or any such predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability, whether at common law, in equity, by any constitution, statute or otherwise, of incorporators, stockholders, directors or officers being waived and released by the owner hereof by the acceptance of the Bonds, and as part of the consideration for the issue thereof, and being likewise waived and released pursuant to the Indenture and the Senior Indenture.

This Bond shall be subject to redemption at the option of the Company, in whole at any time or in part from time to time (any such date of optional redemption, a “Redemption Date”), at the applicable redemption price (“Redemption Price”) set forth below.

At any time prior to June 1, 2028 (the “Par Call Date”), the Redemption Price will be equal to 100% of the principal amount of the Bonds to be redeemed on the Redemption Date together with the Make-Whole Amount (as defined below), if any, plus, in each case, accrued and unpaid interest thereon to the Redemption Date.

At any time on or after the Par Call Date, the Redemption Price will be equal to 100% of the principal amount of the Bonds to be redeemed on the Redemption Date plus accrued and unpaid interest thereon to the Redemption Date.

Notwithstanding the foregoing, installments of interest on the Bonds that are due and payable on Interest Payment Dates falling on or prior to a Redemption Date will be payable on the Interest Payment Date to the registered Holders as of the close of business on the relevant Record Date.

“Make-Whole Amount” means, with respect to any Bond, a premium in an amount equal to the excess, if any, of the Discounted Value of the Remaining Scheduled Payments with respect to the Called Principal of such Bond over the amount of such Called Principal, provided that the Make-Whole Amount may in no event be less than zero. If the Settlement Date is prior to the Par Call Date, the Make-Whole Amount with respect to any Called Principal of a Bond shall be determined as if the Stated Maturity of such Bond were the Par Call Date; provided that the Make-Whole Amount shall in no event be less than zero. For the purposes of determining the Make-Whole Amount, the following terms have the following meanings:

“Called Principal” means, with respect to a Bond, the principal of the Bond that is to be redeemed on a Redemption Date or has become or is declared to be immediately due and payable pursuant to Section 9.01 of the Indenture, as the context requires.

“Discounted Value” means, with respect to the Called Principal of a Bond, the amount obtained by discounting all Remaining Scheduled Payments with respect to such Called Principal

from their respective scheduled due dates to the Settlement Date with respect to such Called Principal, in accordance with accepted financial practice and at a discount factor (applied on the same periodic basis as that on which interest on the Bond is payable) equal to the Reinvestment Yield with respect to such Called Principal.

“Reinvestment Yield” means, with respect to the Called Principal of a Bond, the sum of (a) 0.5% (50 basis points) plus (b) the yield to maturity implied by the “Ask Yield(s)” reported, as of 10:00 a.m. (New York City time) on the second Business Day preceding the Settlement Date with respect to such Called Principal, on the display designated as “Page PX-1” (or such other display as may replace Page PX-1), on Bloomberg Financial Markets for the most recently issued, actively traded on-the-run, benchmark U.S. Treasury securities (“Reported”) having a maturity equal to the Remaining Average Life of such Called Principal as of such Settlement Date.

If there are no such U.S. Treasury securities Reported having a maturity equal to such Remaining Average Life, then such implied yield to maturity will be determined by (a) converting U.S. Treasury bill quotations to bond equivalent yields in accordance with accepted financial practice and (b) interpolating linearly between the “Ask Yields” Reported for the applicable most recently issued, actively traded on-the-run, U.S. Treasury securities with the maturities (1) closest to and greater than such Remaining Average Life and (2) closest to and less than the Remaining Average Life. The Reinvestment Yield shall be rounded to the number of decimal places as appears in the interest rate of the applicable Bond. If such yields are not Reported or the yields Reported as of such time are not ascertainable (including by way of interpolation), then “Reinvestment Yield” means, with respect to the Called Principal of any Bond, the sum of (x) 0.5% (50 basis points) plus (y) the yield to maturity implied by the U.S. Treasury constant maturity yields reported, for the latest day for which such yields have been so reported as of the second Business Day preceding the Settlement Date with respect to such Called Principal, in Federal Reserve Statistical Release H.15 (519) (or any comparable successor publication) for the U.S. Treasury constant maturity having a term equal to the Remaining Average Life of such Called Principal as of such Settlement Date. If there is no such U.S. Treasury constant maturity having a term equal to such Remaining Average Life, such implied yield to maturity will be determined by interpolating linearly between (1) the U.S. Treasury constant maturity so reported with the term closest to and greater than such Remaining Average Life and (2) the U.S. Treasury constant maturity so reported with the term closest to and less than such Remaining Average Life. The Reinvestment Yield shall be rounded to the number of decimal places as appears in the interest rate of the applicable Bond.

“Remaining Average Life” means, with respect to any Called Principal, the number of years obtained by dividing (i) such Called Principal into (ii) the sum of the products obtained by multiplying (a) the principal component of each Remaining Scheduled Payment with respect to such Called Principal by (b) the number of years, computed on the basis of a 360-day year comprised of twelve 30-day months and calculated to two decimal places, that will elapse between the Settlement Date with respect to such Called Principal and the Stated Maturity (or, if redeemed prior to the Par Call Date, the Par Call Date) of such Remaining Scheduled Payment.

“Remaining Scheduled Payments” means, with respect to the Called Principal of a Bond, all payments of such Called Principal and interest thereon that would be due after the Settlement Date with respect to such Called Principal if no payment of such Called Principal were made prior to its Stated Maturity (or, if redeemed prior to the Par Call Date, the Par Call Date), provided that if such Settlement Date is not a date on which interest payments are due to be made under the terms of the Bond, then the amount of the next succeeding scheduled interest payment will be reduced by the amount of interest accrued to such Settlement Date and required to be paid on such Settlement Date.

“Settlement Date” means, with respect to the Called Principal of a Bond, the Redemption Date on which such Called Principal is to be redeemed or has become or is declared to be immediately due and payable pursuant to Section 9.01 of the Indenture as the context requires.

Notice of redemption shall be given to the holders of the Bonds to be redeemed not more than 60 nor less than 30 days prior to the Redemption Date, as provided in Section 4.05 of the Indenture. Each such notice shall specify such Redemption Date, the aggregate principal amount of the Bonds to be redeemed on such date, the principal amount of each Bond held by such holder to be redeemed, and the interest to be paid on the Redemption Date with respect to such principal amount being prepaid. In addition, if the Redemption Date is prior to the Par Call Date, each such notice shall be accompanied by a certificate of a senior financial officer of the Company as to the estimated Make-Whole Amount due in connection with such redemption (calculated as if the date of such notice were the date of the redemption), setting forth the details of such computation. The Make-Whole Amount shall be determined by the Company two Business Days prior to the applicable Redemption Date and the Company shall deliver to holders of the Bonds and to the Trustee a certificate of a senior financial officer specifying the calculation of such Make-Whole Amount as of the Redemption Date.

Subject to the limitations of Section 4.07 of the Indenture, the notice of redemption may state that it is subject to the receipt of the redemption moneys by the Trustee on or before the Redemption Date, and that such notice shall be of no effect unless such moneys are so received on or before such date; a notice of redemption so conditioned shall be of no force or effect if such money is not so received and, in such event, the Company shall not be required to redeem this Bond.

If the Bonds are only partially redeemed by the Company, the Trustee shall select which Bonds are to be redeemed pro rata among all of the Bonds at the time outstanding in proportion, as nearly as practicable, to the respective unpaid principal amounts thereof and otherwise in accordance with the terms of the Indenture. In the event of redemption of the Bonds in part only, a new Bond or Bonds for the unredeemed portion will be issued in the name or names of the holders thereof upon the surrender or cancellation thereof.

If money sufficient to pay the applicable Redemption Price with respect to the Bonds to be redeemed on the applicable Redemption Date, together with accrued interest to the Redemption Date, is deposited with the Trustee on or before the related Redemption Date and certain other

conditions are satisfied, then the Bonds to be redeemed shall no longer be secured by, or entitled to any lien or benefit of, the Indenture as provided by Section 4.04 of the Indenture.

The Indenture contains terms, provisions and conditions relating to the consolidation or merger of the Company with or into, and the conveyance, or other transfer or lease, subject to the lien of the Indenture, of the trust estate to, another corporation, to the assumption by such other corporation, in certain circumstances, of the obligations of the Company under the Indenture and on the Bonds and to the succession of such other corporation in certain circumstances, to the powers and rights of the Company under the Indenture.

The Indenture contains provisions for defeasance at any time of the entire indebtedness of the Bonds or certain covenants with respect thereto upon compliance by the Company with certain conditions set forth therein.

This Bond shall not be valid or become obligatory for any purpose unless and until the certificate of authentication hereon shall have been manually executed by the Trustee or its successor in trust under the Indenture.

IN WITNESS WHEREOF, DTE GAS COMPANY has caused this certificate to be executed under its name with the signature of its duly authorized Officer, under its corporate seal, which may be a facsimile, attested with the signature of its Corporate Secretary.

Dated:

DTE GAS COMPANY

By:______________________________

Attest:

By:______________________

CERTIFICATE OF AUTHENTICATION

The bonds represented by this certificate constitute Bonds of the series designated and described in the within-mentioned Indenture.

CITIBANK, N.A., as Trustee

By:_________________________________

Authorized Officer

Dated:

[End of 2018 Series B Bond Form]

SECTION 4

Each certificate evidencing the 2018 Series B Bonds (and all 2018 Series B Bonds issued in exchange therefor or in substitution thereof) shall bear a legend in substantially the following form (each defined term in the legend being defined as such for purposes of the legend only):

The 2018 Series B Bonds shall be exchangeable upon surrender thereof at the corporate trust office of the Trustee in the Borough of Manhattan, the City of New York, New York, for registered bonds of the same aggregate principal amount and other terms, but of different authorized denomination or denominations, such exchanges to be made without service charge (except for any stamp tax or other governmental charge).

When 2018 Series B Bonds are presented to the Trustee with a request (i) to register the transfer of such 2018 Series B Bonds; or (ii) to exchange such 2018 Series B Bonds for 2018 Series B Bonds of the same series of any authorized denominations of the same aggregate principal amount and Stated Maturity, the Trustee shall register the transfer or make the exchange as requested if its reasonable requirements for such transaction are met; provided, however, that the 2018 Series B Bonds surrendered for transfer or exchange: (A) shall be duly endorsed or be accompanied by a written instrument of transfer in form reasonably satisfactory to the Company and the Trustee, duly executed by the holder thereof or his attorney duly authorized in writing; and (B) are accompanied by the following additional information and documents, as applicable: (x) if such 2018 Series B Bonds are being delivered to the Company by a holder for registration in the name of such holder, without transfer, a certification from such holder to that effect; or (y) if such 2018 Series B Bonds are being transferred to the Company, a certification to that effect; or (z) if such 2018 Series B Bonds are being transferred pursuant to an exemption from registration in accordance with Rule

144 under the Securities Act or in reliance upon another exemption from the registration requirements of the Securities Act, (i) a certification to that effect and (ii) if the Company so requests, other evidence reasonably satisfactory to it as to the compliance with the restrictions set forth in the legend set forth above.

Every 2018 Series B Bond so surrendered shall be accompanied by a proper transfer power duly executed by the registered owner or by a duly authorized attorney transferring such 2018 Series B Bond to the Company, and the signature to such transfer power shall be guaranteed to the satisfaction of the Trustee. All 2018 Series B Bonds so surrendered shall be forthwith canceled and delivered to or upon the order of the Company. All 2018 Series B Bonds executed, authenticated and delivered in exchange for 2018 Series B Bonds so surrendered shall be valid obligations of the Company, evidencing the same debt as the 2018 Series B Bonds surrendered, and shall be secured by the same lien and be entitled to the same benefits and protection as the 2018 Series B Bonds in exchange for which they are executed, authenticated and delivered.

The Company shall not be required to make any such exchange or any registration of transfer after the 2018 Series B Bond so presented for exchange or registration of transfer, or any portion thereof, has been called for redemption and notice thereof given to the registered owner.

SECTION 5

Pending the preparation of definitive 2018 Series B Bonds, the Company may from time to time execute, and upon its written order, the Trustee shall authenticate and deliver, in lieu of such definitive 2018 Series B Bonds and subject to the same provisions, limitations and conditions, one or more temporary 2018 Series B Bonds, in registered form, of any denomination specified in the written order of the Company for the authentication and delivery thereof, and with such omissions, insertions and variations as may be determined by the Board of Directors of the Company. Such temporary 2018 Series B Bonds shall be substantially of the tenor of the 2018 Series B Bonds to be issued as herein before recited.

If any such temporary 2018 Series B Bonds shall at any time be so authenticated and delivered in lieu of definitive 2018 Series B Bonds, the Company shall upon request at its own expense prepare, execute and deliver to the Trustee and thereupon, upon the presentation and surrender of temporary 2018 Series B Bonds, the Trustee shall authenticate and deliver in exchange therefor, without charge to the holder, definitive Bonds of the same series and other terms, if any, and for the same principal sum in the aggregate as the temporary 2018 Series B Bonds surrendered. All temporary 2018 Series B Bonds so surrendered shall be forthwith canceled by the Trustee and delivered to or upon the order of the Company. Until exchanged for definitive 2018 Series B Bonds the temporary 2018 Series B Bonds shall in all respects be entitled to the lien and security of the Indenture and all supplemental indentures.

ARTICLE II
ESTABLISHMENT OF AN ISSUE OF
FIRST MORTGAGE BONDS, OF THE SERIES
DESIGNATED AND DISTINGUISHED AS “2018 SERIES C BONDS”

SECTION 1

There is hereby established a series of bonds to be issued under and secured by the Indenture, to be known as “First Mortgage Bonds,” designated and distinguished as “2018 Series C Bonds” of the Company. The 2018 Series C Bonds shall be limited in aggregate principal amount to $125,000,000 except as provided in Article II of the Indenture and in this Supplemental Indenture with respect to transfers, exchanges and replacements of the 2018 Series C Bonds. The 2018 Series C Bonds shall be registered bonds without coupons and shall be dated as of the date of the authentication thereof by the Trustee.

The 2018 Series C Bonds shall mature on the 1st day of September, 2048 (subject to earlier redemption, as provided herein), shall bear interest at the rate of 4.14% per annum, payable semi-annually on the 1st day of March and September of each year and at maturity (each a “2018 Series C Interest Payment Date”), beginning on March 1, 2019. The principal, Make-Whole Amount (as defined below), if any, and interest on the 2018 Series C Bonds shall be payable in lawful money of the United States of America; the place where such principal and Make-Whole Amount, if any, shall be payable shall be the corporate trust office of the Trustee in the Borough of Manhattan, the City of New York, New York, and the place where such interest shall be payable shall be the office or agency of the Company in said Borough of Manhattan, the City of New York, New York. The 2018 Series C Bonds shall have such other terms as set forth in the form of 2018 Series C Bond provided in Section 3.

SECTION 2

The 2018 Series C Bonds shall be subject to redemption at the option of the Company, in whole at any time or in part from time to time (any such date of redemption, a “2018 Series C Redemption Date”), at the applicable redemption price (“2018 Series C Redemption Price”) set forth below.

At any time prior to March 1, 2048 (the “2018 Series C Par Call Date”), the Redemption Price will be equal to 100% of the principal amount of the 2018 Series C Bonds to be redeemed on the 2018 Series C Redemption Date together with the Make-Whole Amount (as defined in the form of 2018 Series C Bond provided in Section 3), if any, plus, in each case, accrued and unpaid interest thereon to the 2018 Series C Redemption Date.

At any time on or after the 2018 Series C Par Call Date, the 2018 Series C Redemption Price will be equal to 100% of the principal amount of the bonds of 2018 Series C to be redeemed plus accrued and unpaid interest thereon to the redemption date.

Notwithstanding the foregoing, installments of interest on the 2018 Series C Bonds that are due and payable on 2018 Series C Interest Payment Dates falling on or prior to the 2018 Series C Redemption Date will be payable on the 2018 Series C Interest Payment Date to the registered holders as of the close of business on the relevant record date.

Notice of redemption shall be given to the holders of the 2018 Series C Bonds to be redeemed not more than 60 nor less than 30 days prior to the 2018 Series C Redemption Date, as provided in Section 4.05 of the Indenture. Each such notice shall specify such optional 2018 Series C Redemption Date, the aggregate principal amount of the 2018 Series C Bonds to be redeemed on such date, the principal amount of each 2018 Series C Bond held by such holder to be redeemed, and the interest to be paid on the 2018 Series C Redemption Date with respect to such principal amount being prepaid. In addition, if the 2018 Series C Redemption Date is prior to the 2018 Series C Par Call Date, each such notice shall be accompanied by a certificate of a senior financial officer of the Company as to the estimated Make-Whole Amount due in connection with such redemption (calculated as if the date of such notice were the date of the redemption), setting forth the details of such computation. The Make-Whole Amount shall be determined by the Company two Business Days prior to the applicable 2018 Series C Redemption Date and the Company shall deliver to holders of the 2018 Series C Bonds and to the Trustee a certificate of a senior financial officer specifying the calculation of such Make-Whole Amount as of the 2018 Series C Redemption Date.

If the 2018 Series C Bonds are only partially redeemed by the Company, the Trustee shall select which 2018 Series C Bonds are to be redeemed pro rata among all of the 2018 Series C Bonds at the time outstanding in proportion, as nearly as practicable, to the respective unpaid principal amounts thereof and otherwise in accordance with the terms of the Indenture. In the event of redemption of the 2018 Series C Bonds in part only, a new 2018 Series C Bond or 2018 Series C Bonds for the unredeemed portion will be issued in the name or names of the holders thereof upon the surrender or cancellation thereof.

If money sufficient to pay the applicable 2018 Series C Redemption Price with respect to the 2018 Series C Bonds to be redeemed on the applicable 2018 Series C Redemption Date, together with accrued interest to the 2018 Series C Redemption Date, is deposited with the Trustee on or before the related 2018 Series C Redemption Date and certain other conditions are satisfied, then

the 2018 Series C Bonds to be redeemed shall no longer be secured by, or entitled to any lien or benefit of, the Indenture as provided by Section 4.04 of the Indenture.

The 2018 Series C Bonds will not be entitled to any sinking fund and will not be redeemable other than as provided in this Section 2 and the form of 2018 Series C Bond provided in Section 3.

SECTION 3

The 2018 Series C Bonds shall be registered bonds without coupons. The Trustee shall be the registrar and paying agent for the 2018 Series C Bonds, which duties it hereby accepts. The 2018 Series C Bonds may be issued in minimum denominations of $100,000 or any integral multiple of $1,000 in excess thereof.

The forms of 2018 Series C Bonds shall be substantially as follows:

[FORM OF DTE GAS COMPANY 4.14% FIRST MORTGAGE BONDS 2018 SERIES C DUE 2048]

PPN:

No. R-___ $_________________

DTE GAS COMPANY

4.14% MORTGAGE BONDS

2018 SERIES C DUE 2048

Principal Amount: $____________

Authorized Denomination: $100,000 or any integral multiple of $1,000 in excess thereof.

Regular Record Date: close of business on the 15th calendar day (whether or not a Business Day) prior to the relevant Interest Payment Date

Original Issue Date: August 23, 2018

Stated Maturity: September 1, 2048

Interest Payment Dates: March 1 and September 1 of each year, beginning March 1, 2019.

Interest Rate: 4.14% per annum

The bonds represented by this certificate, of the series hereinafter specified, are bonds of the Company (herein called the “bonds”) known as its “First Mortgage Bonds,” issued and to be issued in one or more series under, and all equally and ratably secured by, an Indenture of Mortgage and Deed of Trust dated as of March 1, 1944, duly executed by the Company to Citibank, N.A., successor trustee (“Trustee”), as restated in Part II of the Twenty-ninth Supplemental Indenture dated as of July 15, 1989, which became effective on April 1, 1994, to which indenture and all indentures supplemental thereto executed on and after July 15, 1989 reference is hereby made for a description of the property mortgaged and pledged, the nature and extent of the security, the terms and conditions upon which the bonds are, and are to be, issued and secured, and the rights of the holders of the bonds and of the Trustee in respect of such security (which indenture and all indentures supplemental thereto, including the Forty-ninth Supplemental Indenture dated as of August 1, 2018 referred to below, are hereinafter collectively called the “Indenture”). As provided in the Indenture, the bonds may be issued thereunder for various principal sums and are issuable in series, which may mature at different times, may bear interest at different rates and may otherwise vary as therein provided. The bonds represented by this certificate are part of a series designated “4.14% First Mortgage Bonds 2018 Series C” (herein called the “Bonds”), created by the Forty-ninth Supplemental Indenture dated as of August 1, 2018 as provided for in said Indenture.

At any time prior to March 1, 2048 (the “Par Call Date”), the Redemption Price will be equal to 100% of the principal amount of the Bonds to be redeemed on the Redemption Date together with the Make-Whole Amount (as defined below), if any, plus, in each case, accrued and unpaid interest thereon to the Redemption Date.

“Discounted Value” means, with respect to the Called Principal of a Bond, the amount obtained by discounting all Remaining Scheduled Payments with respect to such Called Principal

conditions are satisfied, then the Bonds to be redeemed shall no longer be secured by, or entitled to any lien or benefit of, the Indenture as provided by Section 4.04 of the Indenture.

Dated:

DTE GAS COMPANY

By:______________________________

Attest:

By:______________________

CERTIFICATE OF AUTHENTICATION

The bonds represented by this certificate constitute Bonds of the series designated and described in the within-mentioned Indenture.

CITIBANK, N.A., as Trustee

By:_________________________________

Authorized Officer

Dated:

[End of 2018 Series C Bond Form]

SECTION 4

Each certificate evidencing the 2018 Series C Bonds (and all 2018 Series C Bonds issued in exchange therefor or in substitution thereof) shall bear a legend in substantially the following form (each defined term in the legend being defined as such for purposes of the legend only):

The 2018 Series C Bonds shall be exchangeable upon surrender thereof at the corporate trust office of the Trustee in the Borough of Manhattan, the City of New York, New York, for registered bonds of the same aggregate principal amount and other terms, but of different authorized denomination or denominations, such exchanges to be made without service charge (except for any stamp tax or other governmental charge).

When 2018 Series C Bonds are presented to the Trustee with a request (i) to register the transfer of such 2018 Series C Bonds; or (ii) to exchange such 2018 Series C Bonds for 2018 Series C Bonds of the same series of any authorized denominations of the same aggregate principal amount and Stated Maturity, the Trustee shall register the transfer or make the exchange as requested if its reasonable requirements for such transaction are met; provided, however, that the 2018 Series C Bonds surrendered for transfer or exchange: (A) shall be duly endorsed or be accompanied by a written instrument of transfer in form reasonably satisfactory to the Company and the Trustee, duly executed by the holder thereof or his attorney duly authorized in writing; and (B) are accompanied by the following additional information and documents, as applicable: (x) if such 2018 Series C Bonds are being delivered to the Company by a holder for registration in the name of such holder, without transfer, a certification from such holder to that effect; or (y) if such 2018 Series C Bonds are being transferred to the Company, a certification to that effect; or (z) if such 2018 Series C Bonds are being transferred pursuant to an exemption from registration in accordance with Rule

Every 2018 Series C Bond so surrendered shall be accompanied by a proper transfer power duly executed by the registered owner or by a duly authorized attorney transferring such 2018 Series C Bond to the Company, and the signature to such transfer power shall be guaranteed to the satisfaction of the Trustee. All 2018 Series C Bonds so surrendered shall be forthwith canceled and delivered to or upon the order of the Company. All 2018 Series C Bonds executed, authenticated and delivered in exchange for 2018 Series C Bonds so surrendered shall be valid obligations of the Company, evidencing the same debt as the 2018 Series C Bonds surrendered, and shall be secured by the same lien and be entitled to the same benefits and protection as the 2018 Series C Bonds in exchange for which they are executed, authenticated and delivered.

The Company shall not be required to make any such exchange or any registration of transfer after the 2018 Series C Bond so presented for exchange or registration of transfer, or any portion thereof, has been called for redemption and notice thereof given to the registered owner.

SECTION 5

Pending the preparation of definitive 2018 Series C Bonds, the Company may from time to time execute, and upon its written order, the Trustee shall authenticate and deliver, in lieu of such definitive 2018 Series C Bonds and subject to the same provisions, limitations and conditions, one or more temporary 2018 Series C Bonds, in registered form, of any denomination specified in the written order of the Company for the authentication and delivery thereof, and with such omissions, insertions and variations as may be determined by the Board of Directors of the Company. Such temporary 2018 Series C Bonds shall be substantially of the tenor of the 2018 Series C Bonds to be issued as herein before recited.

If any such temporary 2018 Series C Bonds shall at any time be so authenticated and delivered in lieu of definitive 2018 Series C Bonds, the Company shall upon request at its own expense prepare, execute and deliver to the Trustee and thereupon, upon the presentation and surrender of temporary 2018 Series C Bonds, the Trustee shall authenticate and deliver in exchange therefor, without charge to the holder, definitive Bonds of the same series and other terms, if any, and for the same principal sum in the aggregate as the temporary 2018 Series C Bonds surrendered. All temporary 2018 Series C Bonds so surrendered shall be forthwith canceled by the Trustee and delivered to or upon the order of the Company. Until exchanged for definitive 2018 Series C Bonds the temporary 2018 Series C Bonds shall in all respects be entitled to the lien and security of the Indenture and all supplemental indentures.

ARTICLE III
ISSUE OF BONDS

The 2018 Series B Bonds in the aggregate principal amount of $195,000,000 and 2018 Series C Bonds in the aggregate principal amount of $125,000,000 may be executed, authenticated and delivered from time to time as permitted by the provisions of the Indenture, including with respect to exchange and replacement of bonds.

ARTICLE IV
THE TRUSTEE

The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or the due execution hereof by the Company, or for or in respect of the recitals and statements contained herein, all of which recitals and statements are made solely by the Company.

Except as herein otherwise provided, no duties, responsibilities or liabilities are assumed, or shall be construed to be assumed, by the Trustee by reason of this Supplemental Indenture other than as set forth in the Indenture and this Supplemental Indenture as executed and accepted on behalf of the Trustee, subject to all the terms and conditions set forth in the Indenture, as fully to all intents as if the same were herein set forth at length.

ARTICLE V
RECORDING AND FILING OF SUPPLEMENTAL INDENTURE
DATED AS OF SEPTEMBER 1, 2017

Pursuant to the terms and provisions of the Original Indenture, a Supplemental Indenture dated as of September 1, 2017 providing for the terms of First Mortgage Bonds to be issued thereunder designated as 2017 Series C Mortgage Bonds and 2017 Series D Mortgage Bonds has heretofore been entered into between the Company and the Trustee and has been filed in the Office of the Secretary of State of Michigan as a financing statement on September 20, 2017 (Filing No. 20170920000819-9) and has been recorded as a real estate mortgage in the offices of the respective Register of Deeds of certain counties in the State of Michigan, as follows:



COUNTY	DATE RECORDED	LIBER/ INSTRUMENT NO.	Page
Alcona County Register of Deeds	9/20/17	535	520-523



COUNTY	DATE RECORDED	LIBER/ INSTRUMENT NO.	Page
Alger County Register of Deeds	9/20/17	MI 201701978	--
Alpena County Register of Deeds	9/20/17	520	904
Antrim County Register of Deeds	9/20/17	201700007461	--
Arenac County Register of Deeds	9/20/17	201703249	--
Barry County Register of Deeds	9/20/17	2017-009512	--
Benzie County Register of Deeds	9/20/17	2017R-04057	--
Charlevoix County Register of Deeds	9/20/17	1171	326
Cheboygan County Register of Deeds	9/20/17	1342	723
Chippewa County Register of Deeds	9/20/17	1265	108
Clare County Register of Deeds	9/21/17	1359	697-730
Clinton County Register of Deeds	9/20/17	5258431	--
Crawford County Register of Deeds	9/20/17	732	597
Delta County Register of Deeds	9/20/17	1195	14
Dickinson County Register of Deeds	9/20/17	867	275
Emmet County Register of Deeds	9/20/17	1197	906
Gladwin County Register of Deeds	9/20/17	1113	58
Grand Traverse County Register of Deeds	9/20/17	2017R-15402	--
Gratiot County Register of Deeds	9/20/17	1009	1402
Ionia County Register of Deeds	9/20/17	647	5248
Iosco County Register of Deeds	9/20/17	2017005569	--
Iron County Register of Deeds	9/20/17	705	325
Isabella County Register of Deeds	9/20/17	1783	706
Jackson County Register of Deeds	9/20/17	2107	346
Kalkaska County Register of Deeds	9/20/17	3137350	--
Kent County Register of Deeds	9/20/17	20170921-0080036	--
Lake County Register of Deeds	9/20/17	395	234
Leelanau County Register of Deeds	10/4/17	1308	920
Lenawee County Register of Deeds	9/20/17	2551	740
Livingston County Register of Deeds	9/20/17	2017R-027572	--
Macomb County Register of Deeds	10/12/17	24995	424
Manistee County Register of Deeds	9/22/17	2017R005094	--
Marquette County Register of Deeds	9/20/17	2017R-09391	--
Mason County Register of Deeds	9/20/17	2017R05261	--
Mecosta County Register of Deeds	9/20/17	879	1649
Menominee County Register of Deeds	9/20/17	805	504
Missaukee County Register of Deeds	9/20/17	2017-02914 AMMTG	--
Monroe County Register of Deeds	9/20/17	2017R19132	--



COUNTY	DATE RECORDED	LIBER/ INSTRUMENT NO.	Page
Montcalm County Register of Deeds	9/20/17	2017R-10307	--
Montmorency County Register of Deeds	9/21/17	363	585
Muskegon County Register of Deeds	9/20/17	4134	407
Newaygo County Register of Deeds	9/20/17	467	1474
Oakland County Register of Deeds	9/21/17	51093	865
Oceana County Register of Deeds	9/20/17	2017	18066-8099
Ogemaw County Register of Deeds	9/20/17	3143355	--
Osceola County Register of Deeds	9/20/17	972	295
Oscoda County Register of Deeds	9/20/17	217-02379	--
Otsego County Register of Deeds	9/20/17	1442	204
Ottawa County Register of Deeds	9/21/17	2017-0035042
Presque Isle County Register of Deeds	9/20/17	596	602
Roscommon County Register of Deeds	9/20/17	1163	1737
St. Clair County Register of Deeds	9/20/17	4871	462
Saginaw County Register of Deeds	9/20/17	2017025988	--
Shiawassee County Register of Deeds	9/20/17	1238	374
Washtenaw County Register of Deeds	9/20/17	5224	851
Wayne County Register of Deeds	10/13/17	54002	1107
Wexford County Register of Deeds	9/20/17	681	229

ARTICLE VI
RECORDING OF AFFIDAVIT OF FACTS AFFECTING REAL PROPERTY

An Affidavit of Facts Affecting Real Property dated February 11, 2013 (the “Affidavit”) has been recorded in the offices of the respective Registers of Deeds of certain counties in the State of Michigan. The Affidavit, signed by the Company’s then President and Chief Operating Officer, was given pursuant to MCL 565.451a to give notice of the fact that pursuant to a joint resolution of the Company’s sole shareholder and its board of directors, the Company amended its articles of incorporation effective January 1, 2013 to change its name from MICHIGAN CONSOLIDATED GAS COMPANY to DTE GAS COMPANY.

ARTICLE VII
MISCELLANEOUS PROVISIONS

Except insofar as herein otherwise expressly provided, all the provisions, terms and conditions of the Indenture shall be deemed to be incorporated in, and made a part of, this Forty-ninth Supplemental Indenture, and the Twenty-ninth Supplemental Indenture dated as of July 15, 1989, as supplemented by the Thirtieth Supplemental Indenture dated as of September 1, 1991, by the Thirty-first Supplemental Indenture dated as of December 15, 1991, by the Thirty-second Supplemental Indenture dated as of January 5, 1993, by the Thirty-third Supplemental Indenture dated as of May 1, 1995, by the Thirty-fourth Supplemental Indenture dated as of November 1, 1996, by the Thirty-fifth Supplemental Indenture dated as of June 18, 1998, by the Thirty-sixth Supplemental Indenture dated as of August 15, 2001, by the Thirty-seventh Supplemental Indenture dated as of February 15, 2003, by the Thirty-eighth Supplemental Indenture dated as of October 1, 2004, by the Thirty-ninth Supplemental Indenture dated as of April 1, 2008, by the Fortieth Supplemental Indenture dated as of June 1, 2008, by the Forty-first Supplemental Indenture dated as of August 1, 2008, by the Forty-second Supplemental Indenture dated as of December 1, 2008, by the Forty-third Supplemental Indenture dated as of December 1, 2012, by the Forty-fourth Supplemental Indenture dated as of December 1, 2013, by the Forty-fifth Supplemental Indenture dated as of December 1, 2014; by the Forty-sixth Supplemental Indenture dated as of August 1, 2015, by the Forty-seventh Supplemental Indenture dated as of December 1, 2016, by the Forty-eighth Supplemental Indenture dated as of September 1, 2017 and by this Supplemental Indenture is in all respects ratified and confirmed; and the Indenture and said Supplemental Indentures shall be read, taken and construed as one and the same instrument.

Except to the extent specifically provided therein, no provision of this Supplemental Indenture or any future supplemental indenture is intended to modify, and the parties do hereby adopt and confirm, the provisions of Section 318(c) of the Trust Indenture Act, which amend and supersede provisions of the Indenture in effect prior to November 15, 1990.

Nothing in this Supplemental Indenture is intended, or shall be construed, to give to any person or corporation, other than the parties hereto and the holders of Bonds issued and to be issued

under and secured by the Indenture, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture, or under any covenant, condition or provision herein contained, all the covenants, conditions and provisions of this Supplemental Indenture being intended to be, and being, for the sole and exclusive benefit of the parties hereto and of the holders of bonds issued and to be issued under the Indenture and secured thereby.

All covenants, promises and agreements in this Supplemental Indenture contained by or on behalf of the Company shall bind its successors and assigns whether so expressed or not.

This Supplemental Indenture may be executed in any number of counterparts, and each of such counterparts when so executed shall be deemed to be an original; but all such counterparts shall together constitute but one and the same instrument.

IN WITNESS WHEREOF, DTE GAS COMPANY has caused this Supplemental Indenture to be executed by its duly authorized Officer, and its corporate seal to be hereunto affixed, and Citibank, N.A., as Trustee as aforesaid, has caused the same to be executed by one of its authorized signatories and its corporate seal to be hereunto affixed, on the respective dates of their acknowledgments hereinafter set forth, as of the date and year first above written.

DTE GAS COMPANY

By: /s/Edward J. Solomon

Edward J. Solomon

Assistant Treasurer

Signed, sealed, acknowledged and

delivered by DTE GAS COMPANY in the presence of:

/s/Daniel Richards

Daniel Richards

/s/Kathleen Hier

Kathleen Hier

State of Michigan }

} ss.

County of Wayne }

The foregoing instrument was acknowledged before me this 1st day of August, 2018, by Edward J. Solomon, as Assistant Treasurer, of DTE Gas Company, a Michigan corporation, on behalf of the corporation.

/s/Elizabeth Ellen Kochevar

Elizabeth Ellen Kochevar

Notary Public, Wayne County, MI

Acting in Wayne County, MI

My Commission Expires: November 16, 2021

Citibank, N.A., as Trustee

By: /s/Louis Piscitelli

Name: Louis Piscitelli

Its: Senior Trust Officer

Signed, sealed, acknowledged and

delivered by CITIBANK, N.A.

in the presence of:

/s/James Polcari

Name: James Polcari

/s/Cirino Emanuele

Name: Cirino Emanuele

State of New York }

} ss.

County of New York }

The foregoing instrument was acknowledged before me this 1st day of August, 2018, by Louis Piscitelli as Senior trust Officer of Citibank, N.A., a national banking association, on behalf of the association, as Trustee, as in said instrument described.

/s/Danny Lee

Danny Lee

Notary Public, State of New York

No. 01LE6161129

Qualified in New York County

Certificate Filed in New York County

Commission Expires: February 20, 2019

This instrument was drafted by:

Daniel Richards

DTE Energy

One Energy Plaza, 1610 WCB

Detroit, MI 48226

When recorded return to:

Daniel Richards

DTE Energy

One Energy Plaza, 1610 WCB

Detroit, MI 48226

EXHIBIT 4.301

DTE ENERGY COMPANY
AND
THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
TRUSTEE

__________________________

SUPPLEMENTAL INDENTURE
DATED AS OF AUGUST 1, 2018

__________________________

SUPPLEMENTING THE AMENDED AND RESTATED INDENTURE
DATED AS OF APRIL 9, 2001

PROVIDING FOR

2018 SERIES D 3.70% SENIOR NOTES DUE 2023

SUPPLEMENTAL INDENTURE, dated as of the 1st day of August, 2018, between DTE Energy Company, a corporation organized and existing under the laws of the State of Michigan (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as successor trustee (the “Trustee”);

WHEREAS, the Company has heretofore executed and delivered to the Trustee an Amended and Restated Indenture, dated as of April 9, 2001 (the “Original Indenture”), as amended, supplemented or modified (as so amended, supplemented or modified, the “Indenture”) providing for the issuance by the Company from time to time of its debt securities; and

WHEREAS, the Company now desires to provide for the issuance of a series of its unsecured, senior debt securities pursuant to the Original Indenture; and

WHEREAS, the Company, in the exercise of the power and authority conferred upon and reserved to it under the provisions of the Original Indenture, including Section 901 thereof, and pursuant to appropriate resolutions of the Board of Directors, has duly determined to make, execute and deliver to the Trustee this Supplemental Indenture to the Original Indenture as permitted by Section 201 and Section 301 of the Original Indenture in order to establish the form or terms of, and to provide for the creation and issue of, a series of its debt securities under the Original Indenture, which shall be known as the “2018 Series D 3.70% Senior Notes due 2023”; and

WHEREAS, all things necessary to make such debt securities, when executed by the Company and authenticated and delivered by the Trustee or any Authenticating Agent and issued upon the terms and subject to the conditions hereinafter and in the Original Indenture set forth against payment therefor, the valid, binding and legal obligations of the Company and to make this Supplemental Indenture a valid, binding and legal agreement of the Company, have been done;

NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH that, in order to establish the terms of a series of debt securities, and for and in consideration of the premises and of the covenants contained in the Original Indenture and in this Supplemental Indenture and for other good and valuable consideration the receipt and sufficiency of which are hereby acknowledged, it is mutually covenanted and agreed as follows:

ARTICLE ONE

DEFINITIONS AND OTHER
PROVISIONS OF GENERAL APPLICATION

SECTION 101. Definitions . Each capitalized term that is used herein and is defined in the Original Indenture shall have the meaning specified in the Original Indenture unless such term is otherwise defined herein. The following terms shall have the respective meanings set forth below:

SECTION 102. Section References . Each reference to a particular section set forth in this Supplemental Indenture shall, unless the context otherwise requires, refer to this Supplemental Indenture.

ARTICLE TWO

TITLE AND TERMS OF THE SECURITIES

SECTION 201. Title of the Securities; Stated Maturity . This Supplemental Indenture hereby establishes a series of Securities, which shall be known as the Company's “2018 Series D 3.70% Senior Notes due 2023” (the “Notes”). The Stated Maturity on which the principal of the Notes shall be due and payable will be August 1, 2023.

SECTION 202. Rank . The Notes shall rank equally with all other unsecured and unsubordinated indebtedness of the Company from time to time outstanding.

SECTION 203. Variations from the Original Indenture . Section 1009 of the Original Indenture shall be applicable to the Notes. Section 403(2) and Section 403(3) shall be applicable to the Notes; the Company's obligations under Section 1009, without limitation, shall be subject to defeasance in accordance with Section 403(3).

SECTION 204. Amount and Denominations; DTC .

(a) The aggregate principal amount of the Notes that may be issued under this Supplemental Indenture is limited initially to $600,000,000 (except as provided in Section 301(2) of the Original Indenture); provided that the Company may, without the consent of the Holders of the Outstanding Notes, “reopen” the Notes so as to increase the aggregate principal amount of the Notes Outstanding in compliance with the procedures set forth in the Original Indenture, including Section 301 and Section 303 thereof, so long as any such additional Notes have the same tenor and terms (including, without limitation, rights to receive accrued and unpaid interest) as the Notes then Outstanding. No additional Notes may be issued if an Event of Default has occurred. The Notes shall be issuable only in fully registered form and, as permitted by Section 301 and Section 302 of the Original Indenture, in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Notes will initially be issued in global form (the “Global Notes”) under a book-entry system, registered in the name of The Depository Trust Company, as depository (“DTC”), or its nominee, which is hereby designated as “Depositary” under the Indenture.

(b) Further to Section 305 of the Original Indenture, any Global Note shall be exchangeable for Notes registered in the name of, and a transfer of a Global Note may be registered to, any Person other than the Depositary for such Note or its nominee only if (i) such Depositary notifies the Company that it is unwilling or unable to continue as Depositary for such Global Note

or if at any time such Depositary ceases to be a clearing agency registered under the Exchange Act, and, in either such case, the Company does not appoint a successor Depositary within 90 days thereafter, (ii) the Company executes and delivers to the Trustee a Company Order that such Global Note shall be so exchangeable and the transfer thereof so registrable or (iii) there shall have occurred and be continuing an Event of Default or an event which, with the giving of notice or lapse of time, or both, would constitute an Event of Default with respect to the Notes. Upon the occurrence in respect of a Global Note of any or more of the conditions specified in clause (i), (ii) or (iii) of the preceding sentence, such Global Note may be exchanged for Notes registered in the name of, and the transfer of such Global Note may be registered to, such Persons (including Persons other than the Depositary and its nominees) as such Depositary, in the case of an exchange, and the Company, in the case of a transfer, shall direct.

SECTION 205. Terms of the Notes .

(a) The Notes shall bear interest at the rate of 3.70% per annum on the principal amount thereof from August 6, 2018, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, until the principal of the Notes becomes due and payable, and on any overdue principal and premium and (to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum during such overdue period. Interest on the Notes will be payable semiannually in arrears on February 1 and August 1 of each year (each such date, an “Interest Payment Date”), commencing February 1, 2019. The amount of interest payable for any period shall be computed on the basis of twelve 30-day months and a 360-day year.

(b) In the event that any Interest Payment Date, redemption date or other date of Maturity of the Notes is not a Business Day, then payment of the amount payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay), in each case with the same force and effect as if made on such date. The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date with respect to any Note will, as provided in the Original Indenture, be paid to the person in whose name the Note (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the relevant record date for such interest installment, which shall be the fifteenth calendar day (whether or not a Business Day) prior to the relevant Interest Payment Date (the “Regular Record Date”). Any such interest installment not punctually paid or duly provided for shall forthwith cease to be payable to the registered Holders on such Regular Record Date, and may either be paid to the person in whose name the Note (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date to be fixed by the Trustee for the payment of such defaulted interest, notice whereof shall be given to the registered Holders of the Notes not less than ten days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Original Indenture. The principal of, and premium, if any, and the interest on the Notes shall be payable at the office or agency of the Company maintained for that purpose in the Borough of Manhattan, The City of New York, in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public

and private debts; provided, however, that payment of interest may be made at the option of the Company by check mailed to the registered Holder at the close of business on the Regular Record Date at such address as shall appear in the Security Register.

(c) The Notes are not subject to repayment at the option of the Holders thereof and are not subject to any sinking fund. As provided in the form of Note attached hereto as Exhibit A, the Notes are subject to optional redemption, as a whole or in part, by the Company prior to Stated Maturity of the principal thereof on the terms set forth therein. Except as modified in the form of the Note, redemption shall be effected in accordance with Article Eleven of the Original Indenture.

(a) The Notes shall have such other terms and provisions as are set forth in the form of Note attached hereto as Exhibit A (which is incorporated by reference in and made a part of this Supplemental Indenture as if set forth in full at this place).

SECTION 206. Form of Notes . Attached hereto as Exhibit A is the form of the Notes.

ARTICLE THREE

MISCELLANEOUS PROVISIONS

The Trustee makes no undertaking or representations in respect of, and shall not be responsible in any manner whatsoever for and in respect of, the validity or sufficiency of this Supplemental Indenture or the proper authorization or the due execution hereof by the Company or for or in respect of the recitals and statements contained herein, all of which recitals and statements are made solely by the Company.

Except as expressly amended hereby, the Original Indenture shall continue in full force and effect in accordance with the provisions thereof and the Original Indenture is in all respects hereby ratified and confirmed. This Supplemental Indenture and all its provisions shall be deemed a part of the Original Indenture in the manner and to the extent herein and therein provided.

This Supplemental Indenture and the Notes shall be governed by, and construed in accordance with, the laws of the State of New York.

This Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the day and year first above written.

DTE ENERGY COMPANY

By: /s/Mark C. Rolling

Name: Mark C. Rolling

Title: Vice President and Treasurer

ATTEST:

By: /s/Lisa A. Muschong

Name: Lisa A. Muschong

Title: Vice President, Corporate Secretary

and Chief of Staff

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee

By: /s/Karen Yu

Name: Karen Yu

Title: Vice President

[ Signature Page to Supplemental Indenture ]

EXHIBIT A

FORM OF NOTE

THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE OF A DEPOSITARY. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN CERTIFICATED FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TRUST COMPANY (“DTC”), TO A NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR OF DTC OR A NOMINEE OF SUCH SUCCESSOR. UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO., OR IN SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL, INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

CUSIP NO. 233331BA4 $__________

NO. : ______

DTE ENERGY COMPANY
2018 SERIES D 3.70% SENIOR NOTES DUE 2023

DTE ENERGY COMPANY, a corporation duly organized and existing under the laws of the State of Michigan (herein referred to as the “Company”, which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & CO., or registered assigns, the principal sum of $__________ on August 1, 2023 (“Stated Maturity” with respect to the principal of this Note), unless previously redeemed, and to pay interest at the rate of 3.70% per annum on said principal sum from August 6, 2018 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, until the principal of this Note becomes due and payable, and on any overdue principal and premium and (to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum during such overdue period. Interest on this Note will be payable semiannually in arrears on February 1 and August 1 of each year (each such date, an “Interest Payment Date”), commencing February 1, 2019. The amount of interest payable for any period shall be computed on the basis of twelve 30-day months and a 360-day year.

In the event that any Interest Payment Date, redemption date or other date of Maturity of the Notes is not a Business Day, then payment of the amount payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay), in each case with the same force and effect as if made on such date. A

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“Business Day” means any day other than a Saturday or Sunday or a day on which commercial banks in the state of New York or the state of Michigan are required or authorized by law or executive order to be closed. The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date with respect to this Note will, as provided in the Indenture, be paid to the person in whose name this Note is registered at the close of business on the relevant record date for such interest installment, which shall be the fifteenth calendar day (whether or not a Business Day) prior to the relevant Interest Payment Date (the “Regular Record Date”). Any such interest installment not punctually paid or duly provided for shall forthwith cease to be payable to the registered Holders on such Regular Record Date, and may either be paid to the person in whose name this Note is registered at the close of business on a Special Record Date to be fixed by the Trustee for the payment of such defaulted interest, notice whereof shall be given to the registered Holders of the Notes not less than ten days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of, and premium, if any, and the interest on the Notes shall be payable at the office or agency of the Company maintained for that purpose in the Borough of Manhattan, The City of New York, in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts; provided, however, that payment of interest may be made at the option of the Company by check mailed to the registered Holder at the close of business on the Regular Record Date at such address as shall appear in the Security Register. Notwithstanding anything else contained herein, if this Note is a Global Note and is held in book-entry form through the facilities of the Depositary, payments on this Note will be made to the Depositary or its nominee in accordance with arrangements then in effect between the Trustee and the Depositary.

This Note is one of a duly authorized series of Securities of the Company, designated as the “2018 Series D 3.70% Senior Notes due 2023” (the “Notes”), initially limited to an aggregate principal amount of $600,000,000 (except for Notes authenticated and delivered upon transfer of, or in exchange for, or in lieu of other Notes, and except as further provided in the Indenture), all issued or to be issued under and pursuant to an Amended and Restated Indenture, dated as of April 9, 2001, as supplemented through and including the Supplemental Indenture dated as of August 1, 2018 (together, as amended, supplemented or modified, the “Indenture”), duly executed and delivered between the Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (herein referred to as the “Trustee”, which term includes any successor trustee under the Indenture), to which Indenture reference is hereby made for a description of the respective rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the registered Holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered.

This Note is not subject to repayment at the option of the Holder hereof. This Note is not subject to any sinking fund.

This Note will be redeemable at the option of the Company, in whole at any time or in part from time to time (any such date of optional redemption, an “Optional Redemption Date,” which shall be a “Redemption Date” for purposes of the Indenture) at the redemption prices set forth below.

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At any time prior to the Par Call Date (as defined below), the optional redemption price (which shall be a “Redemption Price” for purposes of the Indenture) will be equal to the greater of (i) 100% of the principal amount of this Note to be redeemed and (ii) the sum of the present values of the principal amount of this Note to be redeemed and the remaining scheduled payments of interest on the principal amount of this Note to be redeemed that would be due if this Note matured on the Par Call Date (exclusive of interest accrued to the related Optional Redemption Date), in each case discounted from their respective scheduled payment dates to such Optional Redemption Date on a semiannual basis (assuming a 360-day year consisting of 30-day months) at the Adjusted Treasury Rate (as defined below) plus 15 basis points, as determined by the Quotation Agent (as defined below), plus in either case, accrued interest thereon to the date of redemption. At any time on or after the Par Call Date, the optional redemption price will be equal to 100% of the principal amount of this bond to be redeemed plus accrued and unpaid interest thereon to the redemption date.

Notwithstanding the foregoing, installments of interest on this Note that are due and payable on Interest Payment Dates falling on or prior to a Redemption Date will be payable on the Interest Payment Date to the registered Holders as of the close of business on the relevant Record Date.

“Adjusted Treasury Rate” means, with respect to any Optional Redemption Date, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue, calculated on the third Business Day preceding such Optional Redemption Date, using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Optional Redemption Date.

“Comparable Treasury Issue” means the United States Treasury security determined by the Quotation Agent as having a maturity comparable to the remaining term of this Note that would be utilized (assuming, for this purpose, that the stated maturity of this Note is the Par Call Date), at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity with the remaining term of this Note.

“Comparable Treasury Price” means, with respect to any Optional Redemption Date, (i) the average of the Reference Treasury Dealer Quotations for such Optional Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Quotation Agent obtains fewer than three such Reference Treasury Dealer Quotations, the average of all such quotations, or (iii) if only one Reference Treasury Dealer Quotation is received, such quotation.

“Par Call Date” means July 1, 2023.

“Quotation Agent” means one of the Reference Treasury Dealers appointed by the Company.

“Reference Treasury Dealer” means: (i) each of Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc. and a Primary Treasury Dealer selected by MUFG Securities Americas Inc. (or their respective affiliates which are Primary Treasury Dealers), and their respective successors; provided, however, that if any of the foregoing cease to be a primary U.S. Government securities dealer in the United States (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer; and (ii) any other Primary Treasury Dealer(s) selected by the Company.

A-3

“Reference Treasury Dealer Quotation” means, with respect to each Reference Treasury Dealer and any Optional Redemption Date, the average, as determined by the Quotation Agent, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Quotation Agent by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such Optional Redemption Date.

Notice of any optional redemption will be mailed at least 30 days but not more than 60 days before the Optional Redemption Date to the Holder hereof at its registered address.

If money sufficient to pay the applicable Redemption Price with respect to the principal amount of and accrued interest on the principal amount of this Note to be redeemed on the applicable Redemption Date is deposited with the Trustee or Paying Agent on or before the related Redemption Date and certain other conditions are satisfied, then on or after such Redemption Date, interest will cease to accrue on the principal amount of this Note called for redemption. If the Notes are only partially redeemed by the Company, the Trustee shall select which Notes are to be redeemed by lot or in a manner it deems fair and appropriate in accordance with the terms of the Indenture.

In the event of redemption of this Note in part only, a new Note or Notes for the unredeemed portion hereof will be issued in the name of the registered Holder hereof upon the cancellation hereof.

In case an Event of Default, as defined in the Indenture, shall have occurred and be continuing, the principal hereof may be declared, and upon such declaration shall become, due and payable, in the manner, with the effect and subject to the conditions provided in the Indenture.

The Indenture contains provisions for defeasance at any time of the entire indebtedness of this Note upon compliance by the Company with certain conditions set forth therein.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Notes under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority of the aggregate principal amount of all Notes issued under the Indenture at the time outstanding and affected thereby; provided, however, that no such amendment shall without the consent of the Holder of each Note so affected, among other things (i) change the stated maturity of the principal of, or any installment of principal of or interest on any Notes, or reduce the principal amount thereof, or reduce the rate of interest thereon, or reduce any premium payable upon the redemption thereof or (ii) reduce the percentage of Notes, the Holders of which are required to consent to any amendment or waiver or for certain other matters as set forth in the Indenture. The Indenture also contains provisions permitting (i) the registered Holders of 66 2/3% in aggregate principal amount of the Securities at the time outstanding affected thereby, on behalf of the registered Holders of the Securities, to waive compliance by the Company with certain provisions of the Indenture and (ii) the registered Holders of not less than a majority in aggregate principal amount of the Securities at the time outstanding affected thereby, on behalf of the registered Holders of the Securities, to waive certain past defaults under the Indenture and their consequences. Any such consent or waiver by the registered Holder of this Note (unless revoked as provided in the Indenture)

A-4

shall be conclusive and binding upon such registered Holder and upon all future registered Holders and owners of this Note and of any Note issued in exchange hereof or in place hereof (whether by registration of transfer or otherwise), irrespective of whether or not any notation of such consent or waiver is made upon this Note.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the coin or currency herein prescribed.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registrable in the Security Register of the Company, upon surrender of this Note for registration of transfer at the office or agency of the Company in any place where the principal of and any interest on this Note are payable or at such other offices or agencies as the Company may designate, duly endorsed by or accompanied by a written instrument or instruments of transfer in form satisfactory to the Company and the Security Registrar or any transfer agent duly executed by the registered Holder hereof or his or her attorney duly authorized in writing, and thereupon one or more new Notes of this series and of like tenor, of authorized denominations and for the same aggregate principal amount will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in relation thereto.

Prior to due presentment for registration of transfer of this Note, the Company, the Trustee, any paying agent and any Security Registrar may deem and treat the registered Holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and interest due hereon and for all other purposes, and neither the Company nor the Trustee nor any paying agent nor any Security Registrar shall be affected by any notice to the contrary.

The Notes are issuable only in fully registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. This Global Note is exchangeable for Notes in definitive form only under certain limited circumstances set forth in the Indenture. The Notes so issued are issuable only in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. As provided in the Indenture and subject to certain limitations therein set forth, the Notes are exchangeable for a like aggregate principal amount of the Notes of a different authorized denomination, as requested by the registered Holder surrendering the same.

As set forth in, and subject to the provisions of, the Indenture, no registered owner of any Note will have any right to institute any proceeding with respect to the Indenture or for any remedy thereunder, unless (i) such registered owner shall have previously given to the Trustee written notice of a continuing Event of Default with respect to the Notes, (ii) the registered owners of not less than 25% in principal amount of the outstanding Notes shall have made written request, and offered reasonable indemnity, to the Trustee to institute such proceeding as trustee, (iii) the Trustee shall have failed to institute such proceeding within 60 days and (iv) the Trustee shall not have received

A-5

from the registered owners of a majority in principal amount of the outstanding Notes a direction inconsistent with such request within such 60-day period; provided, however, that such limitations do not apply to a suit instituted by the registered owner hereof for the enforcement of payment of the principal of or premium, if any, or any interest on this Note on or after the respective due dates expressed herein.

Unless the Certificate of Authentication hereon has been executed by the Trustee or a duly appointed Authentication Agent referred to herein, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

The Indenture and this Note shall be governed by and construed in accordance with the laws of the State of New York.

All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

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IN WITNESS WHEREOF, the Company has caused this Instrument to be duly executed.

DTE ENERGY COMPANY

By: ______________________________________

Name:

Title:

Date: ____________

Attest:

By: _________________________________

Name:

Title:

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CERTIFICATE OF AUTHENTICATION

This is one of the Notes described in the within mentioned Indenture.

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
as Trustee

By: ______________________________________

Authorized Signatory

Date: _______________

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FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto

(Please insert Social Security or Other Identifying Number of Assignee)

(Please print or type name and address, including zip code of assignee)

the within Note and all rights thereunder, hereby irrevocably constituting and appointing such person attorneys to transfer the within Note on the books of the Issuer, with full power of substitution in the premises.

Dated:________________________

NOTICE: The signature of this assignment must correspond with the name as written upon the face of the within Note in every particular, without alteration or enlargement or any change whatever and NOTICE: Signature(s) must be guaranteed by a financial institution that is a member of the Securities Transfer Agents Medallion Program (“STAMP”), the Stock Exchange, Inc. Medallion Signature Program (“MSP”). When assignment is made by a guardian, trustee, executor or administrator, an officer of a corporation, or anyone in a representative capacity, proof of his or her authority to act must accompany this Note.

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Exhibit 12.87

DTE Energy Company

Computation of Ratio of Earnings to Fixed Charges



	Nine Months Ended			Year Ended December 31,
	September 30, 2018			2017			2016		2015			2014			2013
	(In millions)
Earnings:
Pretax earnings	$	1,043		$	1,287		$	1,105	$	950		$	1,275		$	922
Adjustments to earnings ^(a)	(55		)	(19		)	23		(3		)	(15		)	(26		)
Fixed charges	432			561			493		473			453			461
Net earnings	$	1,420		$	1,829		$	1,621	$	1,420		$	1,713		$	1,357

Fixed Charges:
Interest expense ^(b)	$	408		$	531		$	468	$	446		$	424		$	432
Adjustments to fixed charges ^(c)	24			30			25		27			29			29
Fixed charges	$	432		$	561		$	493	$	473		$	453		$	461

Ratio of earnings to fixed charges	3.29			3.26			3.29		3.00			3.78			2.94

_______________________________________


(a)	Adjustments include the removal of the impact of earnings from non-consolidated entities and the inclusion of capitalized interest costs.


(b)	Includes interest on uncertain positions.


(c)	Adjustments include the interest element of rentals where determinable plus 1/3 of rental expense where no readily defined interest element can be determined and capitalized interest costs.

Exhibit 12.88

DTE Electric Company

Computation of Ratio of Earnings to Fixed Charges



	Nine Months Ended			Year Ended December 31,
	September 30, 2018			2017			2016			2015			2014			2013
	(In millions)
Earnings:
Pretax earnings	$	780		$	928		$	975		$	836		$	830		$	741
Adjustments to earnings ^(a)	(6		)	(9		)	(8		)	(11		)	(11		)	(7		)
Fixed charges	221			288			278			277			267			281
Net earnings	$	995		$	1,207		$	1,245		$	1,102		$	1,086		$	1,015

Fixed Charges:
Interest expense ^(b)	$	208		$	271		$	261		$	255		$	247		$	264
Adjustments to fixed charges ^(c)	13			17			17			22			20			17
Fixed charges	$	221		$	288		$	278		$	277		$	267		$	281

Ratio of earnings to fixed charges	4.50			4.19			4.48			3.98			4.07			3.61

_______________________________________


(a)	Adjustments include the removal of the impact of earnings from non-consolidated entities and the inclusion of capitalized interest costs.


(b)	Includes interest on uncertain positions.


(c)	Adjustments include the interest element of rentals where determinable plus 1/3 of rental expense where no readily defined interest element can be determined and capitalized interest costs.

Exhibit 31.153

FORM 10-Q CERTIFICATION

I, Gerard M. Anderson, certify that:


1.	I have reviewed this Quarterly Report on Form 10-Q of DTE Energy Company;


2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:


a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and


5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):


a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and


b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.



/S/ GERARD M. ANDERSON	Date:	October 24, 2018
Gerard M. Anderson Chairman of the Board and Chief Executive Officer of DTE Energy Company

Exhibit 31.154

FORM 10-Q CERTIFICATION

I, Peter B. Oleksiak, certify that:


1.	I have reviewed this Quarterly Report on Form 10-Q of DTE Energy Company;


2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:


a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and


5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):


a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and


b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.



/S/ PETER B. OLEKSIAK	Date:	October 24, 2018
Peter B. Oleksiak Senior Vice President and Chief Financial Officer of DTE Energy Company

Exhibit 31.155

FORM 10-Q CERTIFICATION

I, Gerard M. Anderson, certify that:


1.	I have reviewed this Quarterly Report on Form 10-Q of DTE Electric Company;


2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:


a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and


5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):


a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and


b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.



/S/ GERARD M. ANDERSON	Date:	October 24, 2018
Gerard M. Anderson Chairman of the Board and Chief Executive Officer of DTE Electric Company

Exhibit 31.156

FORM 10-Q CERTIFICATION

I, Peter B. Oleksiak, certify that:


1.	I have reviewed this Quarterly Report on Form 10-Q of DTE Electric Company;


2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:


a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and


5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):


a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and


b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.



/S/ PETER B. OLEKSIAK	Date:	October 24, 2018
Peter B. Oleksiak Senior Vice President and Chief Financial Officer of DTE Electric Company

Exhibit 32.153

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of DTE Energy Company (the “Company”) for the quarter ended September 30, 2018 , as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gerard M. Anderson, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge and belief:


(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and


(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



Date:	October 24, 2018	/S/ GERARD M. ANDERSON
		Gerard M. Anderson Chairman of the Board and Chief Executive Officer of DTE Energy Company

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Exhibit 32.154

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of DTE Energy Company (the “Company”) for the quarter ended September 30, 2018 , as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Peter B. Oleksiak, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge and belief:


(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and


(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



Date:	October 24, 2018	/S/ PETER B. OLEKSIAK
		Peter B. Oleksiak Senior Vice President and Chief Financial Officer of DTE Energy Company

Exhibit 32.155

CERTIFICATION PURSUANT TO

18 U. S. C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of DTE Electric Company (the “Company”) for the quarter ended September 30, 2018 , as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gerard M. Anderson, certify, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge and belief:


(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and


(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



Date:	October 24, 2018	/S/ GERARD M. ANDERSON
		Gerard M. Anderson Chairman of the Board and Chief Executive Officer of DTE Electric Company

Exhibit 32.156

CERTIFICATION PURSUANT TO

18 U. S. C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of DTE Electric Company (the “Company”) for the quarter ended September 30, 2018 , as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Peter B. Oleksiak, certify, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge and belief:


(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and


(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



Date:	October 24, 2018	/S/ PETER B. OLEKSIAK
		Peter B. Oleksiak Senior Vice President and Chief Financial Officer of DTE Electric Company