Exhibit 4.1

HI-CRUSH PARTNERS LP

AND EACH OF THE GUARANTORS PARTY HERETO

9.500% SENIOR NOTES DUE 2026

INDENTURE

Dated as of August 1, 2018

U.S. Bank National Association

Trustee

TABLE OF CONTENTS

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INDENTURE dated as of August 1, 2018 among Hi-Crush Partners LP, a Delaware limited partnership, the Guarantors (as defined herein) and U.S. Bank National Association, as Trustee.

The Partnership, the Guarantors and the Trustee agree as follows for the benefit of each other and for the equal and ratable benefit of the Holders (as defined) of the 9.500% Senior Notes due 2026 (the “ Notes ”):

ARTICLE 1

DEFINITIONS AND INCORPORATION

BY REFERENCE

Section 1.01 Definitions.

“144A Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on Rule 144A.

“Acquired Debt” means, with respect to any specified Person:

(1) Indebtedness of any other Person existing at the time such other Person is merged with or into or becomes a Subsidiary of such specified Person, whether or not such Indebtedness is incurred in connection with, or in contemplation of, such other Person merging with or into, or becoming a Restricted Subsidiary of, such specified Person; and

(2) Indebtedness secured by a Lien encumbering any asset acquired by such specified Person.

“ Additional Notes ” means additional Notes (other than the Initial Notes) issued under this Indenture in accordance with Sections 2.02 and 4.09 hereof, as part of the same series as the Initial Notes.

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “control,” as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise; provided that beneficial ownership of 10% or more of the Voting Stock of a Person will be deemed to be control. For purposes of this definition, the terms “ controlling, ” “ controlled by ” and “ under common control with ” have correlative meanings.

“Agent” means any Registrar, co-registrar, Paying Agent or additional paying agent.

“ Applicable Premium ” means, with respect to any Note on any redemption date, the greater of:

(1) 1.0% of the principal amount of the Note; or

(2) (a) the excess of: the present value at such redemption date of (i) the redemption price of the Note at August 1, 2021 (such redemption price being set forth in the table appearing in Section Section 3.07(d) hereof) plus (ii) all required interest payments due on the Note through August 1, 2021 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 50 basis points; over (b) the principal amount of the Note.

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“Applicable Procedures” means, with respect to any transfer or exchange of or for beneficial interests in any Global Note, the rules and procedures of the Depositary, Euroclear and Clearstream that apply to such transfer or exchange.

“ Asset Sale ” means:

(1) the sale, lease, transfer, conveyance or other disposition of any properties, assets or rights by the Partnership or any of the Partnership’s Restricted Subsidiaries; provided that the sale, lease, conveyance or other disposition of all or substantially all of the assets of the Partnership and its Restricted Subsidiaries taken as a whole will be governed by the provisions of Section 4.13 hereof and/or the provisions of Section 5.01 hereof and not by the provisions of Section Section 4.10 hereof; and

(2) the issuance of Equity Interests by any of the Partnership’s Restricted Subsidiaries or the sale by the Partnership or any of the Partnership’s Restricted Subsidiaries of Equity Interests in any of the Partnership’s Subsidiaries, other than Preferred Stock issued in compliance with Section 4.09 hereof.

Notwithstanding the preceding, none of the following items will be deemed to be an Asset Sale:

(1) any single transaction or series of related transactions that involves properties or assets having a Fair Market Value of less than $20.0 million;

(2) a transfer or other disposition of properties or assets between or among the Partnership and its Restricted Subsidiaries;

(3) an issuance or sale of Equity Interests by a Restricted Subsidiary of the Partnership to the Partnership or to a Restricted Subsidiary of the Partnership;

(4) the sale, lease or other transfer of products, services or accounts receivable in the ordinary course of business and any sale or other disposition of damaged, worn-out or obsolete assets in the ordinary course of business (including the abandonment or other disposition of intellectual property that is, in the reasonable judgment of the Partnership, no longer economically practicable to maintain or useful in the conduct of the business of the Partnership and its Restricted Subsidiaries taken as whole);

(5) licenses and sublicenses by the Partnership or any of its Restricted Subsidiaries of software or intellectual property in the ordinary course of business;

(6) any surrender or waiver of contract rights or settlement, release, recovery on or surrender of contract, tort or other claims in the ordinary course of business;

(7) the granting of Liens not prohibited by Section 4.12 hereof;

(8) any sale or other disposition of Equity Interests in or Indebtedness of an Unrestricted Subsidiary;

(9) any disposition due to a casualty or condemnation or other involuntary transfer;

(10) the sale or other disposition of cash or Cash Equivalents; and

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(11) a Restricted Payment that does not violate Section 4.07 hereof or a Permitted Investment.

“ Bankruptcy Law ” means Title 11, U.S. Code or any similar federal or state law for the relief of debtors.

“ Beneficial Owner ” has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person” will be deemed to have beneficial ownership of all securities that such “person” has the right to acquire by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only after the passage of time. The terms “Beneficially Owns” and “Beneficially Owned” have a corresponding meaning.

“ Board of Directors ” means:

(1) with respect to a corporation, the board of directors of the corporation or any committee thereof duly authorized to act on behalf of such board;

(2) with respect to a partnership, the board of directors or board of managers of the general partner of the partnership or, if such general partner is itself a limited partnership, then the board of directors or board of managers of its general partner;

(3) with respect to a limited liability company, the managing member or members or any controlling committee of managing members thereof; and

(4) with respect to any other Person, the board or committee of such Person serving a similar function.

“Business Day” means any day other than a Legal Holiday.

“Capital Lease Obligation” means, at the time any determination is to be made, the amount of the liability in respect of a capital lease that would at that time be required to be capitalized on a balance sheet prepared in accordance with GAAP. Notwithstanding the foregoing, any lease (whether entered into before or after the date of this Indenture) that would have been classified as an operating lease pursuant to GAAP as in effect on the date of this Indenture will be deemed not to represent a Capital Lease Obligation.

“Capital Stock” means:

(1) in the case of a corporation, corporate stock;

(2) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock;

(3) in the case of a partnership or limited liability company, partnership interests (whether general or limited) or membership interests; and

(4) any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person, but excluding from all of the foregoing any debt securities convertible into Capital Stock, whether or not such debt securities include any right of participation with Capital Stock.

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“Cash Equivalents” means:

(1) United States dollars;

(2) securities issued or directly and fully guaranteed or insured by the United States government or any agency or instrumentality of the United States government ( provided that the full faith and credit of the United States is pledged in support of those securities) having maturities of not more than six months from the date of acquisition;

(3) certificates of deposit and eurodollar time deposits with maturities of six months or less from the date of acquisition, bankers’ acceptances with maturities not exceeding six months and overnight bank deposits, in each case, with any lender party to the Credit Agreement or with any domestic commercial bank having capital and surplus in excess of $250.0 million and a Thomson Bank Watch Rating of “B” or better;

(4) repurchase obligations with a term of not more than seven days for underlying securities of the types described in clauses (2) and (3) above entered into with any financial institution meeting the qualifications specified in clause (3) above;

(5) commercial paper having one of the two highest ratings obtainable from either of Moody’s or S&P and, in each case, maturing within six months after the date of acquisition; and

(6) money market funds at least 95% of the assets of which constitute Cash Equivalents of the kinds described in clauses (1) through (5) of this definition.

“Change of Control” means the occurrence of any of the following:

(1) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Partnership and its Subsidiaries taken as a whole, to any Person (including any “person” (as that term is used in Section 13(d)(3) of the Exchange Act)), other than a Qualified Owner;

(2) the adoption of a plan relating to the liquidation or dissolution of the Partnership;

(3) the removal by the limited partners of the Partnership of the General Partner as the general partner of the Partnership; or

(4) the consummation of any transaction (including any merger or consolidation), the result of which is that any Person (including any “person” (as defined above)), other than a Qualified Owner, becomes the Beneficial Owner, directly or indirectly, of more than 50% of the Voting Stock of (i) so long as the Partnership is a partnership, the General Partner, or (ii) thereafter, the Partnership, measured by voting power rather than number of shares, units or the like; provided , however , that the Partnership becoming the Beneficial Owner, directly or indirectly, of 100% of the Voting Stock of the General Partner measured by voting power rather than number of shares, units or the like, shall not constitute a Change of Control.

Notwithstanding the preceding, a conversion (whether by merger, statutory conversion or otherwise) of the Partnership from a limited partnership to a limited liability company or other form of entity, or an exchange of all of the outstanding Equity Interests in the Partnership for Capital Stock in a corporation or a limited liability company, shall not constitute a Change of Control, so long as immediately

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following such conversion or exchange (i) the “persons” (as that term is used in Section 13(d)(3) of the Exchange Act) who Beneficially Owned the Capital Stock of the Partnership immediately prior to such transactions continue to Beneficially Own in the aggregate more than 50% of the Voting Stock of such entity, or continue to Beneficially Own sufficient Equity Interests in such entity to elect a majority of its directors, managers, trustees or other persons serving in a similar capacity for such entity and, in either case no “person” (as that term is used in Section 13(d)(3) of the Exchange Act), excluding any Qualified Owner, Beneficially Owns more than 50% of the Voting Stock of such entity or (ii) one or more Qualified Owners in the aggregate own more than 50% of the Voting Stock of such entity. In addition, no Change of Control shall result from consummation of a Corporate Conversion or any transaction related thereto.

“Clearstream” means Clearstream Banking, S.A.

“Code” means the Internal Revenue Code of 1986, as amended.

“Consolidated EBITDA” means, with respect to any specified Person for any period, the Consolidated Net Income of such Person for such period plus , without duplication:

(1) an amount equal to any extraordinary loss plus any net loss realized by such Person or any of its Restricted Subsidiaries in connection with an Asset Sale, to the extent such losses were deducted in computing such Consolidated Net Income; plus

(2) provision for taxes based on income or profits or Permitted Tax Distributions of such Person and its Restricted Subsidiaries for such period, to the extent that such provision for taxes or Permitted Tax Distributions was deducted in computing such Consolidated Net Income; plus

(3) the Fixed Charges of such Person and its Restricted Subsidiaries for such period, to the extent that such Fixed Charges were deducted in computing such Consolidated Net Income; plus

(4) the Transaction Costs for such period, to the extent that such Transaction Costs were deducted in computing such Consolidated Net Income; plus

(5) any foreign currency translation losses (including losses related to currency remeasurements of Indebtedness) of such Person and its Restricted Subsidiaries for such period, to the extent that such losses were taken into account in computing such Consolidated Net Income; plus

(6) any deferred or non-cash equity compensation or stock option or similar compensation expense, including all expense recorded for any equity appreciation rights plan in excess of cash payments for exercised rights, in each case during such period; plus

(7) an amount equal to dividends or distributions paid during such period in cash to such Person or any of its Restricted Subsidiaries by a Person that is not a Restricted Subsidiary or that is accounted for by the equity method of accounting, in each case, to the extent not already included in computing such Consolidated Net Income; plus

(8) depreciation, amortization (including amortization of intangibles but excluding amortization of prepaid cash expenses that were paid in a prior period) and other non-cash charges and expenses (excluding any such non-cash charge or expense to the extent that it represents an accrual of or reserve for cash charges or expenses in any future period or amortization of a prepaid cash charge or expense that was paid in a prior period) of such Person and its Restricted Subsidiaries for such period to the extent that such depreciation, amortization and other non-cash charges or expenses were deducted in computing such Consolidated Net Income; minus

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(9) non-cash items increasing such Consolidated Net Income for such period, other than the accrual of revenue in the ordinary course of business,

in each case, on a consolidated basis and determined in accordance with GAAP.

“Consolidated Net Income” means, with respect to any specified Person for any period, the aggregate of the net income (loss) of such Person and its Restricted Subsidiaries for such period, on a consolidated basis (excluding the net income (loss) of any Unrestricted Subsidiary of such Person), determined in accordance with GAAP and without any reduction in respect of Preferred Stock dividends; provided that:

(1) all extraordinary gains or losses and all gains or losses realized in connection with any Asset Sale or the disposition of securities or the early extinguishment of Indebtedness, together with any related provision for taxes or Permitted Tax Distributions on any such gain, will be excluded;

(2) the net income (but not loss) of any Person that is not a Restricted Subsidiary or that is accounted for by the equity method of accounting will be included only to the extent of the amount of dividends or similar distributions paid in cash to the specified Person or a Restricted Subsidiary of the Person;

(3) the net income (but not loss) of any Restricted Subsidiary will be excluded to the extent that the declaration or payment of dividends or similar distributions by that Restricted Subsidiary of that net income is not at the date of determination permitted without any prior governmental approval (that has not been obtained) or, directly or indirectly, by operation of the terms of its charter or any agreement, instrument, judgment, decree, order, statute, rule or governmental regulation applicable to that Restricted Subsidiary or its stockholders;

(4) the cumulative effect of a change in accounting principles will be excluded;

(5) any impairment charge or asset write-off pursuant to the Financial Accounting Standards Board’s Accounting Standards Codification No. 350 “Goodwill and Other Intangible Assets” will be excluded;

(6) effects of adjustments (including the effects of such adjustments pushed down to such Person and its Restricted Subsidiaries) related to the application of recapitalization accounting or purchase accounting (including in the inventory, property and equipment, software, goodwill, intangible assets, in process research and development, deferred revenue and debt line items), will be excluded;

(7) accruals and reserves that are established or adjusted in connection with an Investment or an acquisition that are required to be established or adjusted as a result of such Investment or such acquisition, in each case in accordance with GAAP, will be excluded;

(8) any expenses, charges or losses to the extent covered by insurance that are, directly or indirectly, reimbursed or reimbursable by a third party, and any expenses, charges or losses that are covered by indemnification or other reimbursement provisions in connection with any acquisition, Investment or any sale, conveyance, transfer or other disposition of assets permitted under the Indenture, will be excluded;

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(9) non-cash gains and losses attributable to movement in the mark-to-market valuation of Hedging Obligations pursuant to Financial Accounting Standards Board Statement No. 133 will be excluded; and

(10) for any period during which such Person is a pass-through or disregarded entity for U.S. federal income tax purposes, an amount equal to the Permitted Tax Distributions for such period will be excluded.

“Consolidated Net Tangible Assets” of any Person as of any date means the total assets of such Person and its Restricted Subsidiaries as of the most recent fiscal quarter end for which a consolidated balance sheet of such Person and its Restricted Subsidiaries is available minus total goodwill and other intangible assets of such Person and its Subsidiaries reflected on such balance sheet, all calculated on a consolidated basis in accordance with generally accepted accounting principles.

“continuing” means, with respect to any Default or Event of Default, that such Default or Event of Default has not been cured or waived.

“ Corporate Conversion ” means (a) a conversion (whether by merger, statutory conversion or otherwise) of the Partnership from a limited partnership to a corporation, (b) the consummation of an exchange of Equity Interests of the Partnership for Capital Stock in a corporation, whereby the Equity Interests of the Partnership cease to be listed for trading on a national securities exchange and the Capital Stock in such corporation is listed for trading on a national securities exchange or (c) an election by the Partnership to be treated as a corporation for U.S. federal income tax purposes.

“ Corporate Trust Office of the Trustee ” means the address of the Trustee specified in Section 12.01 hereof or such other address as to which the Trustee may give notice to the Partnership.

“Credit Agreement” means that certain Credit Agreement, to be dated as of the date of this Indenture by and among the Partnership, as Borrower, the lenders party thereto from time to time, certain subsidiaries of the Borrower as Guarantors, JPMorgan Chase Bank, N.A., as Administrative Agent and an issuing lender, and each other issuing lender party thereto, including any related notes, Guarantees, collateral documents, instruments and agreements executed in connection therewith, and, in each case, as amended, restated, modified, renewed, refunded, replaced in any manner (whether upon or after termination or otherwise) or refinanced (including by means of sales of debt securities to institutional investors) in whole or in part from time to time.

“ Credit Facilities ” means one or more debt facilities (including the Credit Agreement), indentures or commercial paper facilities, in each case, with banks or other institutional lenders, accredited investors or institutional investors providing for revolving credit loans, term loans, term debt, debt securities, receivables financing (including through the sale of receivables to such lenders or to special purpose entities formed to borrow from such lenders against such receivables) or letters of credit, in each case, as amended, restated, modified, renewed, extended, increased, refunded, replaced in any manner (whether upon or after termination or otherwise) or refinanced (including by means of sales of debt securities to institutional investors) in whole or in part from time to time.

“Custodian” means the Trustee, as custodian with respect to the Notes in global form, or any successor entity thereto.

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“Default” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

“Definitive Note” means a certificated Note registered in the name of the Holder thereof and issued in accordance with Section 2.06 hereof, substantially in the form of Exhibit A hereto except that such Note shall not bear the Global Note Legend and shall not have the “Schedule of Exchanges of Interests in the Global Note” attached thereto.

“Depositary” means, with respect to the Notes issuable or issued in whole or in part in global form, the Person specified in Section 2.03 hereof as the Depositary with respect to the Notes, and any and all successors thereto appointed as depositary hereunder and having become such pursuant to the applicable provision of this Indenture.

“ Designated Non -cash Consideration ” means the Fair Market Value (as determined in good faith by the Partnership) of non-cash consideration received by the Partnership or a Restricted Subsidiary in connection with an Asset Sale that is so designated as Designated Non-cash Consideration pursuant to an Officers’ Certificate, less the amount of Cash Equivalents received in connection with a subsequent sale of such Designated Non-cash Consideration.

“Disqualified Equity” means any Capital Stock that, by its terms (or by the terms of any security into which it is convertible, or for which it is exchangeable, in each case, at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, or redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the date that is 91 days after the date on which the Notes mature. Notwithstanding the preceding sentence, any Capital Stock that would constitute Disqualified Equity solely because the holders of the Capital Stock have the right to require the Partnership to repurchase such Capital Stock upon the occurrence of a change of control or an asset sale will not constitute Disqualified Equity if the terms of such Capital Stock provide that the Partnership may not repurchase or redeem any such Capital Stock pursuant to such provisions unless such repurchase or redemption complies with Section 4.07 hereof. The amount of Disqualified Equity deemed to be outstanding at any time for purposes of this Indenture will be the maximum amount that the Partnership and its Restricted Subsidiaries may become obligated to pay upon the maturity of, or pursuant to any mandatory redemption provisions of, such Disqualified Equity, exclusive of accrued dividends.

“Domestic Subsidiary” means any Restricted Subsidiary of the Partnership that was formed under the laws of the United States or any state of the United States or the District of Columbia.

“Equity Interests” means Capital Stock and all warrants, options or other rights to acquire Capital Stock (but excluding any debt security that is convertible into, or exchangeable for, Capital Stock).

“Equity Offering” means any public or private sale either of (1) Equity Interests of the Partnership by the Partnership (other than Disqualified Equity and other than to a Subsidiary of the Partnership) or (2) Equity Interests of a direct or indirect parent entity of the Partnership (other than to the Partnership or a Subsidiary of the Partnership) to the extent that the net proceeds therefrom are contributed to the common equity capital of the Partnership.

“Euroclear” means Euroclear Bank, S.A./N.V., as operator of the Euroclear system.

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended.

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“Existing Indebtedness” means the aggregate principal amount of Indebtedness of the Partnership and its Subsidiaries (other than Indebtedness under the Credit Agreement) in existence on the date of this Indenture, until such amounts are repaid.

“Fair Market Value” means the value that would be paid by a willing buyer to an unaffiliated willing seller in a transaction not involving distress or necessity of either party, determined in good faith by (i) by an Officer of the General Partner for any valuation less than $50.0 million and (ii) otherwise the Board of Directors of the General Partner.

“Fixed Charge Coverage Ratio” means with respect to any specified Person for any period, the ratio of the Consolidated EBITDA of such Person for such period to the Fixed Charges of such Person for such period. In the event that the specified Person or any of its Restricted Subsidiaries incurs, assumes, guarantees, repays, repurchases, redeems, defeases or otherwise discharges any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems Preferred Stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated and on or prior to the date on which the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Calculation Date”), then the Fixed Charge Coverage Ratio will be calculated giving pro forma effect to such incurrence, assumption, Guarantee, repayment, repurchase, redemption, defeasance or other discharge of Indebtedness, or such issuance, repurchase or redemption of Preferred Stock, and the use of the proceeds therefrom, as if the same had occurred at the beginning of the applicable four quarter reference period. For purposes of this definition, whenever pro forma effect is to be given to any calculation, the pro forma calculations will be determined in good faith by the chief financial or accounting officer of the specified Person; provided that such officer may in his or her discretion include any reasonably identifiable and factually supportable pro forma changes to Consolidated EBITDA, including any pro forma expenses and cost reductions, that have occurred or in the judgment of such officer are reasonably expected to occur within 12 months of the date of the applicable transaction (regardless of whether such expense or cost reduction or any other operating improvements could then be reflected properly in pro forma financial statements prepared in accordance with Regulation S-X under the Securities Act or any other regulation or policy of the SEC).

In addition, for purposes of calculating the Fixed Charge Coverage Ratio:

(1) acquisitions that have been made by a Person or any of its Subsidiaries, including through mergers, consolidations or otherwise, and including any related financing transactions during the four-quarter reference period or subsequent to such reference period and on or prior to the Calculation Date will be given pro forma effect as if they had occurred on the first day of the four-quarter reference period;

(2) the Consolidated EBITDA attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded;

(3) the Fixed Charges attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses (and ownership interests therein) disposed of prior to the Calculation Date, will be excluded, but only to the extent that the obligations giving rise to such Fixed Charges will not be obligations of the specified Person or any of its Restricted Subsidiaries following the Calculation Date;

(4) any Person that is a Restricted Subsidiary on the Calculation Date will be deemed to have been a Restricted Subsidiary at all times during such four-quarter period;

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(5) any Person that is not a Restricted Subsidiary on the Calculation Date will be deemed not to have been a Restricted Subsidiary at any time during such four-quarter period; and

(6) if any Indebtedness bears a floating rate of interest, the interest expense on such Indebtedness will be calculated as if the rate in effect on the Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligation applicable to such Indebtedness if such Hedging Obligation has a remaining term as at the Calculation Date in excess of 12 months).

“ Fixed Charges ” means, with respect to any specified Person for any period, the sum, without duplication, of:

(1) the consolidated interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued, including amortization of original issue discount, non-cash interest payments, the interest component of any deferred payment obligations, the interest component of all payments associated with Capital Lease Obligations, commissions, discounts and other fees and charges incurred in respect of letter of credit or bankers’ acceptance financings, and net of the effect of all payments made or received pursuant to Hedging Obligations in respect of interest rates, but in each case excluding (x) amortization of deferred financing fees, debt issuance costs, commissions, fees and expenses and (y) any expensing of bridge, commitment or other financing fees; plus

(2) the consolidated interest expense of such Person and its Restricted Subsidiaries that was capitalized during such period; plus

(3) any interest on Indebtedness of another Person that is guaranteed by such Person or one of its Restricted Subsidiaries or secured by a Lien on assets of such Person or one of its Restricted Subsidiaries, whether or not such Guarantee or Lien is called upon; plus

(4) all dividends, whether paid or accrued and whether or not in cash, on any series of Disqualified Equity of such Person or any series of Disqualified Equity or Preferred Stock of any of its Restricted Subsidiaries, other than dividends on Equity Interests payable solely in Equity Interests of the Partnership (other than Disqualified Equity) or to the Partnership or a Restricted Subsidiary of the Partnership.

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect from time to time.

“General Partner” means Hi-Crush GP LLC, a Delaware limited liability company, and its successors and permitted assigns as general partner of the Partnership or as the business entity with the ultimate authority to manage the business and operations of the Partnership.

“Global Note Legend” means the legend set forth in Section 2.06(f)(2) hereof, which is required to be placed on all Global Notes issued under this Indenture.

“Global Notes” means, individually and collectively, each of the Restricted Global Notes and the Unrestricted Global Notes deposited with or on behalf of and registered in the name of the Depository or its nominee, substantially in the form of Exhibit A hereto and that bears the Global Note Legend and that has the “Schedule of Exchanges of Interests in the Global Note” attached thereto, issued in accordance with Section 2.01, 2.06(b)(4), 2.06(d)(2), Section 2.06(d)(3) or 2.06(f) hereof.

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“Government Securities” means direct obligations of, or obligations guaranteed by, the United States of America, and the payment for which the United States pledges its full faith and credit.

“Guarantee” means a guarantee other than by endorsement of negotiable instruments for collection in the ordinary course of business, direct or indirect, in any manner including by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof, of all or any part of any Indebtedness (whether arising by virtue of partnership arrangements, or by agreements to keep-well, to purchase assets, goods, securities or services, to take or pay or to maintain financial statement conditions or otherwise).

“Guarantors” means any Subsidiary of the Partnership that executes a Note Guarantee in accordance with the provisions of this Indenture, and their respective successors and assigns, in each case, until the Note Guarantee of such Person has been released in accordance with the provisions of this Indenture.

“Hedging Obligations” means, with respect to any specified Person, the obligations of such Person under:

(1) interest rate swap agreements (whether from fixed to floating or from floating to fixed), interest rate cap agreements and interest rate collar agreements;

(2) other agreements or arrangements designed to manage interest rates or interest rate risk; and

(3) other agreements or arrangements designed to protect such Person against fluctuations in currency exchange rates or commodity prices.

“Holder” means a Person in whose name a Note is registered.

“Indebtedness” means, with respect to any specified Person, any indebtedness of such Person (excluding accrued expenses and trade payables), whether or not contingent:

(1) in respect of borrowed money;

(2) evidenced by or issued in exchange for bonds, notes, debentures or similar instruments or letters of credit (or reimbursement agreements in respect thereof);

(3) in respect of bankers’ acceptances;

(4) representing Capital Lease Obligations;

(5) representing the balance deferred and unpaid of the purchase price of any property or services due more than six months after such property is acquired or such services are completed; or

(6) representing any Hedging Obligations,

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if and to the extent any of the preceding items (other than letters of credit and Hedging Obligations) would appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all Indebtedness of others secured by a Lien on any asset of the specified Person (whether or not such Indebtedness is assumed by the specified Person) and, to the extent not otherwise included, the Guarantee by the specified Person of any Indebtedness of any other Person. Indebtedness shall be calculated without giving effect to the effects of Statement of Financial Accounting Standards No. 133 and related interpretations to the extent such effects would otherwise increase or decrease an amount of Indebtedness for any purpose under this Indenture as a result of accounting for any embedded derivatives created by the terms of such Indebtedness.

“Indenture” means this Indenture, as amended or supplemented from time to time.

“Indirect Participant” means a Person who holds a beneficial interest in a Global Note through a Participant.

“Initial Notes” means the $450.0 million aggregate principal amount of Notes issued under this Indenture on the date hereof.

“ Investment Grade ” means a rating of Baa3 or better by Moody’s and a rating of BBB- or better by S&P (or, if either such entity ceases to rate the Notes for reasons outside of the control of the Partnership, the equivalent investment grade credit rating from any other “nationally recognized statistical rating organization” registered under Section 15E of the Exchange Act selected by the Partnership as a replacement agency).

“Investments” means, with respect to any Person, all direct or indirect investments by such Person in other Persons (including Affiliates) in the forms of loans (including Guarantees or other obligations), advances or capital contributions (excluding commission, travel and similar advances to officers and employees made in the ordinary course of business), purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities, together with all items that are or would be classified as investments on a balance sheet prepared in accordance with GAAP. If the Partnership or any Restricted Subsidiary of the Partnership sells or otherwise disposes of any Equity Interests of any direct or indirect Restricted Subsidiary of the Partnership such that, after giving effect to any such sale or disposition, such Person is no longer a Restricted Subsidiary of the Partnership, the Partnership will be deemed to have made an Investment on the date of any such sale or disposition equal to the Fair Market Value of the Partnership’s Investments in such Restricted Subsidiary that were not sold or disposed of in an amount determined as provided in Section 4.07(c) hereof. The acquisition by the Partnership or any Restricted Subsidiary of the Partnership of a Person that holds an Investment in a third Person will be deemed to be an Investment by the Partnership or such Restricted Subsidiary in such third Person in an amount equal to the Fair Market Value of the Investments held by the acquired Person in such third Person in an amount determined as provided in Section 4.07(c) hereof. Except as otherwise provided in this Indenture, the amount of an Investment will be determined at the time the Investment is made and without giving effect to subsequent changes in value.

“Legal Holiday” means a Saturday, a Sunday or a day on which banking institutions in the City of New York or at a place of payment are authorized by law, regulation or executive order to remain closed. If a payment date is a Legal Holiday at a place of payment, payment may be made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue on such payment for the intervening period.

“Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security interest or encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

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“ Moody’s ” means Moody’s Investors Service, Inc., or any successor to the rating agency business thereof.

“Net Proceeds” means the aggregate amount of cash proceeds and Cash Equivalents received by the Partnership or any of its Restricted Subsidiaries in respect of any Asset Sale (including any cash or Cash Equivalents received upon the sale or other disposition of any non-cash consideration received in any Asset Sale), net of the direct costs relating to such Asset Sale, including legal, accounting and investment banking fees, and sales commissions, and any relocation expenses incurred as a result of the Asset Sale, taxes paid or payable (including, for this purpose, any associated Permitted Tax Distributions) as a result of the Asset Sale, in each case, after taking into account any available tax credits or deductions and any tax sharing arrangements, and amounts required to be applied to the repayment of Indebtedness, other than revolving Indebtedness except to the extent resulting in a permanent reduction in availability of such Indebtedness under a Credit Facility, secured by a Lien on the asset or assets that were the subject of such Asset Sale and any reserve for adjustment or indemnification obligations in respect of the sale price of such asset or assets established in accordance with GAAP.

“ Non-Recourse Debt ” means Indebtedness:

(1) as to which neither the Partnership nor any of its Restricted Subsidiaries (a) provides credit support of any kind (including any undertaking, agreement or instrument that would constitute Indebtedness) or (b) is directly or indirectly liable as a guarantor or otherwise; and

(2) no default with respect to which (including any rights that the holders of the Indebtedness may have to take enforcement action against an Unrestricted Subsidiary) would permit upon notice, lapse of time or both any holder of any other Indebtedness of the Partnership or any of its Restricted Subsidiaries to declare a default on such other Indebtedness or cause the payment of the Indebtedness to be accelerated or payable prior to its Stated Maturity.

For purposes of determining compliance with Section 4.09 hereof, if any Non-Recourse Debt of any of the Partnership’s Unrestricted Subsidiaries ceases to be Non-Recourse Debt of such Unrestricted Subsidiary, such event will be deemed to constitute an incurrence of Indebtedness by a Restricted Subsidiary of the Partnership.

“Non-U.S. Person” means a Person who is not a U.S. Person.

“Note Guarantee” means the Guarantee by each Guarantor of the Partnership’s obligations under this Indenture and the Notes, pursuant to the provisions of this Indenture.

“Notes” has the meaning assigned to it in the preamble to this Indenture.

“Obligations” means any principal, interest, penalties, fees, indemnifications, reimbursements, damages and other liabilities payable under the documentation governing any Indebtedness.

“Offering Memorandum” means the final offering memorandum, dated July 27, 2018, of the Partnership relating to the offering of the Initial Notes.

“Officer” means, with respect to any Person, the Chairman of the Board of Directors, the Chief Executive Officer, the President, the Chief Operating Officer, the Chief Financial Officer, the Treasurer, any Assistant Treasurer, the Controller, the Secretary, Assistant Secretary or any Vice-President of such Person (or, if such Person is a limited partnership, the general partner of such Person, and in the case of Hi-Crush Partners LP, the General Partner).

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“Officers’ Certificate” means, with respect to any Person, a certificate signed on behalf of such Person by any two of its Officers that meets the requirements of Section Section 12.02 hereof.

“Operating Surplus” has the meaning assigned to such term in the Partnership Agreement, as in effect on the date of this Indenture.

“Opinion of Counsel” means an opinion from legal counsel who is reasonably acceptable to the Trustee, that meets the requirements of Section Section 12.02 hereof. The counsel may be an employee of or counsel to the Partnership or the General Partner, any Subsidiary of the Partnership or the Trustee.

“Participant” means, with respect to the Depositary, Euroclear or Clearstream, a Person who has an account with the Depositary, Euroclear or Clearstream, respectively (and, with respect to DTC, shall include Euroclear and Clearstream).

“ Partnership” means Hi-Crush Partners LP, and any and all successors thereto.

“ Partnership Agreement ” means the Second Amended and Restated Agreement of Limited Partnership of the Partnership dated as of January 31, 2013, as such may be further amended, modified or supplemented from time to time.

“ Permitted Business ” means (a) the businesses engaged in by the Partnership and its Subsidiaries on the date of this Indenture, as described in the Offering Memorandum, the provision of any other logistics solutions in the North American energy industry and businesses that are reasonably related, incidental or ancillary thereto or reasonable extensions thereof, and (b) any other business that generates gross income that constitutes “qualifying income” under Section 7704(d) of the Code.

“ Permitted Joint Venture Investment ” means, with respect to an Investment by any specified Person, an Investment by such specified Person in any other Person engaged in a Permitted Business (1) in which the Person has significant involvement in the day to day operations and management or veto power over significant management decisions or board or management committee representation and (2) of which at least 20.0% of the outstanding Equity Interests of such other Person is at the time owned directly or indirectly by the specified Person.

“ Permitted Investments ” means:

(1) any Investment in the Partnership or in a Restricted Subsidiary of the Partnership;

(2) any Investment in Cash Equivalents;

(3) any Investment by the Partnership or any Restricted Subsidiary of the Partnership in a Person, if as a result of such Investment:

(a) such Person becomes a Restricted Subsidiary of the Partnership; or

(b) such Person is merged, consolidated or amalgamated with or into, or transfers or conveys substantially all of its assets to, or is liquidated into, the Partnership or a Restricted Subsidiary of the Partnership;

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(4) any Investment made as a result of the receipt of non-cash consideration from an Asset Sale (or a disposition excluded from the definition thereof) that was made pursuant to and in compliance with Section Section 4.10 hereof;

(5) any acquisition of assets or Capital Stock solely in exchange for the issuance of Equity Interests (other than Disqualified Equity) of the Partnership;

(6) any Investments received in compromise or resolution of (A) obligations of trade creditors or customers that were incurred in the ordinary course of business of the Partnership or any of its Restricted Subsidiaries, including pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer; or (B) litigation, arbitration or other disputes;

(7) Investments represented by Hedging Obligations;

(8) loans or advances to officers, directors or employees made in the ordinary course of business of the Partnership or any Restricted Subsidiary of the Partnership in an aggregate principal amount not to exceed $2.5 million at any one time outstanding;

(9) repurchases of or other investments in the Notes;

(10) Permitted Joint Venture Investments made by the Partnership or any of its Restricted Subsidiaries, in an aggregate amount (measured on the date each such Investment was made and without giving effect to subsequent changes in value), when taken together with all other Investments made pursuant to this clause (10) and then outstanding, that does not exceed the greater of (a) $75.0 million or (b) 7.0% of the Partnership’s Consolidated Net Tangible Assets; provided, however, that if any Investment pursuant to this clause (10) is made in any Person that is not a Restricted Subsidiary at the date of the making of such Investment and such Person becomes a Restricted Subsidiary after such date, such Investment shall thereafter be deemed to have been made pursuant to clause (1) above and shall cease to have been made pursuant to this clause (10) for so long as such Person continues to be a Restricted Subsidiary;

(11) any guarantee of Indebtedness permitted to be incurred by Section 4.09 hereof other than a guarantee of Indebtedness of an Affiliate of the Partnership that is not a Restricted Subsidiary of the Partnership;

(12) any Investment existing on, or made pursuant to binding commitments existing on, the date of this Indenture and any Investment consisting of an extension, modification or renewal of any Investment existing on, or made pursuant to a binding commitment existing on, the date of this Indenture; provided that the amount of any such Investment may be increased (a) as required by the terms of such Investment as in existence on the date of this Indenture or (b) as otherwise permitted under this Indenture;

(13) Investments acquired after the date of this Indenture as a result of the acquisition by the Partnership or any Restricted Subsidiary of the Partnership of another Person, including by way of a merger, amalgamation or consolidation with or into the Partnership or any of its Restricted Subsidiaries, or all or substantially all of the assets of another Person, in each case, in a transaction that is not prohibited by Section 5.01 hereof after the date of this Indenture to the extent that such Investments were not made in contemplation of such acquisition, merger, amalgamation or consolidation and were in existence on the date of such acquisition, merger, amalgamation or consolidation; and

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(14) other Investments in any Person having an aggregate Fair Market Value (measured on the date each such Investment was made and without giving effect to subsequent changes in value), when taken together with all other Investments made pursuant to this clause (13) that are at the time outstanding not to exceed the greater of (a) $75.0 million and (b) 5.0% of the Partnership’s Consolidated Net Tangible Assets; provided, however, that if any Investment pursuant to this clause (14) is made in any Person that is not a Restricted Subsidiary at the date of the making of such Investment and such Person becomes a Restricted Subsidiary after such date, such Investment shall thereafter be deemed to have been made pursuant to clause (1) above and shall cease to have been made pursuant to this clause (14) for so long as such Person continues to be a Restricted Subsidiary.

“ Permitted Liens ” means:

(1) Liens on assets of the Partnership or any of its Restricted Subsidiaries securing Indebtedness and other Obligations under Credit Facilities that was permitted by the terms of this Indenture to be incurred pursuant to clause (1) of the definition of Permitted Debt; provided that, for absence of doubt, beginning on that date that certain covenants have ceased to be applicable to the Notes pursuant to Section Section 4.16, the aggregate principal amount of Indebtedness and other Obligations that is permitted to be secured pursuant to this clause (1) will continue to be limited to the amount set forth in clause (1) of the definition of Permitted Debt;

(2) Liens to secure Hedging Obligations and/or Obligations with respect to Treasury Management Arrangements incurred in the ordinary course of business;

(3) Liens on property of a Person existing at the time such Person becomes a Restricted Subsidiary of the Partnership or is merged with or into or consolidated with the Partnership or any Restricted Subsidiary of the Partnership; provided that such Liens were in existence prior to such Person becoming a Restricted Subsidiary of the Partnership or such merger or consolidation and do not extend to any assets other than those of the Person that becomes a Restricted Subsidiary of the Partnership or is merged with or into or consolidated with the Partnership or any Restricted Subsidiary of the Partnership;

(4) Liens on property (including Capital Stock) existing at the time of acquisition of the property by the Partnership or any Subsidiary of the Partnership; provided that such Liens were in existence prior to such acquisition and not incurred in contemplation of, such acquisition;

(5) Liens to secure the performance of statutory obligations, insurance, surety or appeal bonds, workers compensation obligations, performance bonds or other obligations of a like nature incurred in the ordinary course of business (including Liens to secure letters of credit issued to assure payment of such obligations);

(6) Liens to secure Indebtedness (including Capital Lease Obligations) permitted by Section 4.09(b)(4) hereof covering only the assets acquired with or financed by such Indebtedness;

(7) Liens to secure Indebtedness of Restricted Subsidiaries that are not Guarantors permitted under Section 4.09 hereof; provided that such Liens may not extend to any property or assets of the Partnership or any Guarantor other than the Capital Stock of such non-Guarantor Restricted Subsidiaries;

(8) Liens on the Capital Stock of any Unrestricted Subsidiary or joint venture to secure Indebtedness of such Unrestricted Subsidiary or joint venture;

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(9) Liens existing on the date of this Indenture, other than Liens securing Indebtedness and other obligations incurred pursuant to Section 4.09(b)(1) hereof;

(10) Liens for taxes, assessments or governmental charges or claims that are not yet delinquent or that are being contested in good faith by appropriate proceedings promptly instituted and diligently concluded; provided that any reserve or other appropriate provision as is required in conformity with GAAP has been made therefor;

(11) Liens imposed by law, such as carriers’, warehousemen’s, landlord’s and mechanics’ Liens, in each case, incurred in the ordinary course of business;

(12) survey exceptions, easements or reservations of, or rights of others for, licenses, rights-of-way, sewers, electric lines, telegraph and telephone lines and other similar purposes, or zoning or other restrictions as to the use of real property that were not incurred in connection with Indebtedness and that do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person;

(13) Liens created for the benefit of (or to secure) the Notes or the Note Guarantees;

(14) Liens to secure any Permitted Refinancing Indebtedness permitted to be incurred under this Indenture; provided , however , that:

(a) the new Lien is limited to all or part of the same property and assets that secured or, under the written agreements pursuant to which the original Lien arose, could secure the original Lien (plus improvements and accessions to, such property or proceeds or distributions thereof); and

(b) the Indebtedness secured by the new Lien is not increased to any amount greater than the sum of (x) the outstanding principal amount, or, if greater, committed amount, of the Indebtedness renewed, refunded, refinanced, replaced, defeased or discharged with such Permitted Refinancing Indebtedness and (y) an amount necessary to pay any fees and expenses, including premiums, related to such renewal, refunding, refinancing, replacement, defeasance or discharge;

(15) Liens on insurance policies and proceeds thereof, or other deposits, to secure insurance premium financings;

(16) filing of Uniform Commercial Code financing statements as a precautionary measure in connection with operating leases;

(17) bankers’ Liens, rights of setoff, Liens arising out of judgments or awards not constituting an Event of Default and notices of lis pendens and associated rights related to litigation being contested in good faith by appropriate proceedings and for which adequate reserves have been made;

(18) Liens on cash, Cash Equivalents or other property arising in connection with the defeasance, discharge or redemption of Indebtedness;

(19) Liens on specific items of inventory or other goods (and the proceeds thereof) of any Person securing such Person’s obligations in respect of bankers’ acceptances issued or created in the ordinary course of business for the account of such Person to facilitate the purchase, shipment or storage of such inventory or other goods;

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(20) grants of software and other technology licenses in the ordinary course of business;

(21) Liens arising out of conditional sale, title retention, consignment or similar arrangements for the sale of goods entered into in the ordinary course of business;

(22) Liens in favor of the Partnership or any of the Guarantors; and

(23) Liens incurred in the ordinary course of business of the Partnership or any Restricted Subsidiary of the Partnership; provided, however, that, after giving effect to any such incurrence, the aggregate principal amount of all Indebtedness then outstanding and secured by any Liens pursuant to this clause (23) does not exceed the greater of (a) $50.0 million or (b) 5.0% of the Partnership’s Consolidated Net Tangible Assets at such time; and

(24) any Lien renewing, extending, refinancing or refunding a Lien permitted by clauses (2) through (23) above; provided that (a) the principal amount of Indebtedness secured by such Lien does not exceed the principal amount of such Indebtedness outstanding immediately prior to the renewal, extension, refinance or refund of such Lien, plus all accrued interest on the Indebtedness secured thereby and the amount of all fees, expenses and premiums incurred in connection therewith, and (b) no assets encumbered by any such Lien other than the assets permitted to be encumbered immediately prior to such renewal, extension, refinance or refund are encumbered thereby.

“ Permitted Payments to Parent ” means the distribution by the Partnership to any direct or indirect parent of the Partnership from time to time of amounts necessary to fund the payment by or reimbursement of such parent entity of (i) its general corporate or other operating, administrative, compliance and overhead costs and expenses in the ordinary course of business and (ii) expenses related to the registration and offering of securities (in either case, including any such fees, costs or expenses of independent auditors, reserve engineers and legal counsel to such parent entity, fees and expenses (including franchise or similar taxes) required to maintain its corporate existence and customary salary, bonus and other benefits payable to its directors, officers and employees), to the extent such costs and expenses are reasonably attributable or related to the ownership of the Partnership and its Restricted Subsidiaries.

“ Permitted Refinancing Indebtedness ” means any Indebtedness or Disqualified Equity of the Partnership or any of its Restricted Subsidiaries or any Preferred Stock of any Restricted Subsidiary of the Partnership issued in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge other Indebtedness or Disqualified Equity of the Partnership or any of its Restricted Subsidiaries or any Preferred Stock of any Restricted Subsidiary of the Partnership (other than intercompany Indebtedness); provided that:

(1) the principal amount (or accreted value, if applicable) or, in the case of Disqualified Equity, the amount thereof determined in accordance with the definition of Disqualified Equity, of such Permitted Refinancing Indebtedness does not exceed the principal amount (or accreted value, if applicable) of the Indebtedness or the amount of Disqualified Equity or Preferred Stock renewed, refunded, refinanced, replaced, defeased or discharged (plus all accrued interest on the Indebtedness or accrued and unpaid dividends on such Preferred Stock and the amount of all fees and expenses, including premiums, incurred in connection therewith);

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(2) such Permitted Refinancing Indebtedness (a) has a final maturity date no earlier than the earlier of (i) the final maturity of the Indebtedness or Disqualified Equity or Preferred Stock being Refinanced, or (ii) 91 days after the final maturity of the Notes, and (b) has a Weighted Average Life to Maturity either (i) equal to or greater than the Weighted Average Life to Maturity of the Indebtedness or Disqualified Stock or Preferred Stock being Refinanced, or (ii) longer than the Weighted Average Life to Maturity of the Notes;

(3) if the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged is subordinated in right of payment to the Notes, such Permitted Refinancing Indebtedness is subordinated in right of payment to the Notes on terms at least as favorable to the Holders of Notes as those contained in the documentation governing the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged; and

(4) such Indebtedness is incurred either by the Partnership or by the Restricted Subsidiary of the Partnership that was the obligor on the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged and is guaranteed only by Persons who were obligors on the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged.

“ Permitted Tax Distributions ” means:

(1) dividends or distributions by the Partnership or a Subsidiary of the Partnership to any direct or indirect parent of the Partnership in an amount required for any such direct or indirect parent to pay franchise, excise and similar taxes and other fees and expenses required to maintain its corporate or other legal existence; provided , however , to the extent the direct or indirect parent has Subsidiaries (or other material assets) other than the Partnership and its Subsidiaries, such dividends or distributions from the Partnership shall be based upon a reasonable allocation of such taxes, fees and expenses between the income or assets of the Partnership and its Subsidiaries and the income or assets of any other Subsidiaries of (or the income or value of such other material assets of) the direct or indirect parent;

(2) from and after the consummation of a Corporate Conversion, with respect to any taxable period (or portion thereof) for which the Partnership and any of its Subsidiaries are members of a consolidated, combined, affiliated, unitary or similar income tax group for U.S. federal and/or applicable foreign, state or local income tax purposes (each, a “ Tax Group ”) of which a direct or indirect parent of the Partnership is the common parent, or for which the Partnership is a partnership or disregarded entity for U.S. federal or applicable foreign, state or local income tax purposes that is wholly-owned (directly or indirectly) by an entity that is taxable as a corporation for such income tax purposes, dividends or distributions by the Partnership or an applicable Subsidiary, as may be relevant, to such direct or indirect parent of the Partnership in an amount not to exceed the sum of the amount of any U.S. federal, foreign, state and/or local income taxes that the Partnership and/or its Subsidiaries that are members of the relevant Tax Group, as applicable, would have paid for such taxable period (or such portion thereof) had the Partnership and/or such Subsidiaries, as applicable, been a stand-alone corporate taxpayer or a stand-alone corporate group; and

(3) from and after the consummation of a Corporate Conversion, with respect to any taxable period or portion thereof during which the Partnership is a pass-through entity but not a publicly traded partnership as defined in Section 7704(b) of the Code, and is not wholly-owned (directly or indirectly) by an entity that is taxable as a corporation for U.S. federal income tax purposes, dividends or distributions by the Partnership to the direct or indirect parent of the Partnership in an amount equal to the amount determined under subparagraph (2) above but limited to the percentage equal to the direct or indirect parent’s economic interest in the Partnership, and a pro rata amount to each other member or partner of the Partnership based upon such member or partner’s economic interest in the Partnership.

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“Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company or government or other entity.

“ Preferred Stock ” means, with respect to any Person, any and all preferred or preference stock, units or other similar Equity Interests (however designated) of such Person whether outstanding or issued after the date of this Indenture.

“Private Placement Legend” means the legend set forth in Section 2.06(f)(1) hereof to be placed on all Notes issued under this Indenture except where otherwise permitted by the provisions of this Indenture.

“QIB” means a “qualified institutional buyer” as defined in Rule 144A.

“ Qualified Owner ” means each of (i) Hi-Crush Proppants LLC, (ii) the General Partner, (iii) the owners of the General Partner and Hi-Crush Proppants LLC as of the date of this Indenture, (iv) the officers, directors and management employees of the General Partner, the Partnership and the Subsidiaries of the Partnership as of the date of this Indenture, (v) any Person that is a direct or indirect parent entity of the General Partner or the Partnership, as applicable, and of which no other Person or group (within the meaning of the Exchange Act), other than a Person or group described in the preceding clauses (i) through (iv) or clause (vi), holds more than 50% of the total voting power of the Voting Stock of such Person; and (vi) any group (within the meaning of the Exchange Act) that includes one or more of the Persons described in the preceding clauses (i) through (v), provided that no Person other than the Persons described in the preceding clauses (i) through (v) controls more than 50% of the total voting power of such group. Any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) whose acquisition of Beneficial Ownership of any Voting Stock of the General Partner or the Partnership constitutes a Change of Control in respect of which a Change of Control Offer or an Alternate Offer is made in accordance with the requirements of this Indenture will thereafter, together with its Affiliates, constitute an additional Qualified Owner.

“ Rating Agencies ” means Moody’s and S&P.

“Regulation S” means Regulation S promulgated under the Securities Act.

“Regulation S Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend, the Regulation S Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee, issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on Rule 903 of Regulation S.

“ Regulation S Legend ” means the legend set forth in Section 2.06(f)(3) hereof to be placed on all Notes issued under this Indenture pursuant to Regulation S.

“ Reinstatement Date ” has the meaning assigned to such term in Section Section 4.16 hereof.

“Responsible Officer,” when used with respect to the Trustee, means any officer within the corporate trust department of the Trustee (or any successor group of the Trustee) or any other officer of the Trustee customarily performing functions similar to those performed by any of the above designated officers and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his knowledge of and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture.

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“Restricted Definitive Note” means a Definitive Note bearing the Private Placement Legend.

“Restricted Global Note” means a Global Note bearing the Private Placement Legend.

“Restricted Investment” means an Investment other than a Permitted Investment.

“Restricted Period” means the 40-day distribution compliance period as defined in Regulation S.

“ Restricted Subsidiary ” of a Person means any Subsidiary of the referent Person that is not an Unrestricted Subsidiary.

“ S&P ” means S&P Global Ratings, a division of S&P Global, Inc., or any successor to the rating agency business thereof.

“SEC” means the Securities and Exchange Commission.

“Securities Act” means the U.S. Securities Act of 1933, as amended.

“Significant Subsidiary” means any Restricted Subsidiary that would be a “significant subsidiary” as defined in Article 1, Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act, as such Regulation is in effect on the date of this Indenture.

“ Stated Maturity ” means, with respect to any installment of interest or principal on any series of Indebtedness, the date on which the payment of interest or principal was scheduled to be paid in the documentation governing such Indebtedness as of the first date it was incurred in compliance with the terms of this Indenture, and will not include any contingent obligations to repay, redeem or repurchase any such interest or principal prior to the date originally scheduled for the payment thereof.

“Subsidiary” means, with respect to any specified Person:

(1) any corporation, association or other business entity (other than a partnership or limited liability company) of which more than 50% of the total voting power of the Voting Stock is at the time owned or controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and

(2) any partnership or limited liability company of which (a) more than 50% of the capital accounts, distribution rights, total equity and voting interests or general and limited partnership interests, as applicable, are owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof, whether in the form of membership, general, special or limited partnership interests or otherwise, and (b) such Person or any Subsidiary of such Person is a controlling general partner or otherwise controls such entity.

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“Transaction Costs” means any legal, professional and advisory fees or other transaction costs and expenses paid (whether or not incurred) by the Partnership or any Restricted Subsidiary in connection with (i) any acquisitions by the Partnership or any Restricted Subsidiary, (ii) any incurrence of Indebtedness or Disqualified Equity by the Partnership or any Restricted Subsidiary or any refinancing thereof, or any issuance of other equity securities or (iii) any reorganization or recapitalization of the capital structure of the General Partner or the Partnership or Subsidiaries thereof, in each case permitted under this Indenture.

“Treasury Management Arrangement” means any agreement or other arrangement governing the provision of treasury or cash management services, including deposit accounts, overdraft, credit or debit card, funds transfer, automated clearinghouse, zero balance accounts, returned check concentration, controlled disbursement, lockbox, account reconciliation and reporting and trade finance services and other cash management services

“ Treasury Rate” means, as of any redemption date, the yield to maturity as of the earlier of (a) such redemption date or (b) the date on which such Notes are defeased or satisfied and discharged, of the most recently issued United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to such date (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from the redemption date to August 1, 2021; provided, however, that if the period from the redemption date to August 1, 2021, is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used. Any such Treasury Rate shall be obtained by the Partnership. The Partnership will (a) calculate the Treasury Rate no later than the second (and no earlier than the fourth) Business Day preceding the applicable redemption date and (b) prior to such redemption date, provide the Trustee a statement setting forth the Applicable Premium and the Treasury Rate and showing the calculation of each in reasonable detail.

“Trustee” means U.S. Bank National Association until a successor replaces it in accordance with the applicable provisions of this Indenture and thereafter means the successor serving hereunder.

“Unrestricted Definitive Note” means a Definitive Note that does not bear and is not required to bear the Private Placement Legend.

“Unrestricted Global Note” means a Global Note that does not bear and is not required to bear the Private Placement Legend.

“ Unrestricted Subsidiary ” means any Subsidiary of the Partnership that is designated by the Board of Directors of the General Partner as an Unrestricted Subsidiary pursuant to a resolution of the Board of Directors of the General Partner, but only to the extent that such Subsidiary:

(1) has no Indebtedness other than Non-Recourse Debt;

(2) except as permitted by Section 4.11 hereof, is not party to any agreement, contract, arrangement or understanding with the Partnership or any Restricted Subsidiary of the Partnership unless the terms of any such agreement, contract, arrangement or understanding are no less favorable to the Partnership or such Restricted Subsidiary than those that might be obtained at the time from Persons who are not Affiliates of the Partnership;

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(3) is a Person with respect to which neither the Partnership nor any of its Restricted Subsidiaries has any direct or indirect obligation (a) to subscribe for additional Equity Interests or (b) to maintain or preserve such Person’s financial condition; and

(4) has not guaranteed or otherwise directly or indirectly provided credit support for any Indebtedness of the Partnership or any of its Restricted Subsidiaries.

“U.S. Person” means a U.S. Person as defined in Rule 902(k) promulgated under the Securities Act.

“Voting Stock” of any specified Person as of any date means the Capital Stock of such Person that is at the time entitled to vote in the election of the Board of Directors of such Person.

“Weighted Average Life to Maturity” means, when applied to any Indebtedness at any date, the number of years obtained by dividing:

(1) the sum of the products obtained by multiplying (a) the amount of each then remaining installment, sinking fund, serial maturity or other required payments of principal, including payment at final maturity, in respect of the Indebtedness, by (b) the number of years (calculated to the nearest one-twelfth) that will elapse between such date and the making of such payment; by

(2) the then outstanding principal amount of such Indebtedness.

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Section 1.03 Rules of Construction.

Unless the context otherwise requires:

(1) a term has the meaning assigned to it;

(2) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(3) “or” is not exclusive;

(4) “including” is not limiting;

(5) words in the singular include the plural, and in the plural include the singular;

(6) “will” shall be interpreted to express a command;

(7) provisions apply to successive events and transactions; and

(8) references to sections of or rules under the Securities Act or the Exchange Act will be deemed to include substitute, replacement of successor sections or rules adopted by the SEC from time to time.

ARTICLE 2

THE NOTES

Section 2.01 Form and Dating.

(a) General . The Notes and the Trustee’s certificate of authentication will be substantially in the form of Exhibit A hereto. The Notes may have notations, legends or endorsements required by law, stock exchange rule or usage. Each Note will be dated the date of its authentication. The Notes shall be in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof.

The terms and provisions contained in the Notes will constitute, and are hereby expressly made, a part of this Indenture and the Partnership, the Guarantors and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express provisions of this Indenture, the provisions of this Indenture shall govern and be controlling.

(b) Global Notes . Notes issued in global form will be substantially in the form of Exhibit A hereto (including the Global Note Legend thereon and the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Notes issued in definitive form will be substantially in the form of Exhibit A hereto

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(but without the Global Note Legend thereon and without the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Each Global Note will represent such of the outstanding Notes as will be specified therein and each shall provide that it represents the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time be reduced or increased, as appropriate, to reflect exchanges and redemptions. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the aggregate principal amount of outstanding Notes represented thereby will be made by the Trustee or the Custodian, at the direction of the Trustee, in accordance with instructions given by the Holder thereof as required by Section 2.06 hereof.

(c) Euroclear and Clearstream Procedures Applicable. The provisions of the “Operating Procedures of the Euroclear System” and “Terms and Conditions Governing Use of Euroclear” and the “General Terms and Conditions of Clearstream Banking” and “Customer Handbook” of Clearstream will be applicable to transfers of beneficial interests in the Regulation S Global Note that are held by Participants through Euroclear or Clearstream.

Section 2.02 Execution and Authentication.

At least one Officer must sign the Notes for and on behalf of the Partnership by manual or facsimile signature.

If an Officer whose signature is on a Note no longer holds that office at the time a Note is authenticated, the Note will nevertheless be valid.

A Note will not be valid until authenticated by the manual signature of the Trustee. The signature will be conclusive evidence that the Note has been authenticated under this Indenture.

The Trustee will, upon receipt of a written order of the Partnership signed by an Officer (an “ Authentication Order ”), authenticate Notes for original issue that may be validly issued under this Indenture, including any Additional Notes. The aggregate principal amount of Notes outstanding at any time may not exceed the aggregate principal amount of Notes authorized for issuance by the Partnership pursuant to one or more Authentication Orders, except as provided in Section 2.07 hereof.

The Trustee may appoint an authenticating agent acceptable to the Partnership to authenticate Notes. An authenticating agent may authenticate Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as an Agent to deal with Holders or an Affiliate of the Partnership.

Section 2.03 Registrar and Paying Agent.

The Partnership will maintain an office or agency where Notes may be presented for registration of transfer or for exchange (“ Registrar ”) and an office or agency where Notes may be presented for payment (“ Paying Agent ”). The Registrar will keep a register of the Notes and of their transfer and exchange. The Partnership may appoint one or more co-registrars and one or more additional paying agents. The term “Registrar” includes any co-registrar and the term “Paying Agent” includes any additional paying agent. The Partnership may change any Paying Agent or Registrar without notice to any Holder. The Partnership will notify the Trustee in writing of the name and address of any Agent not a party to this Indenture. If the Partnership fails to appoint or maintain another entity as Registrar or Paying Agent, the Trustee shall act as such. The Partnership or any of its Subsidiaries may act as Paying Agent or Registrar.

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The Partnership initially appoints The Depository Trust Company ( “DTC” ) to act as Depositary with respect to the Global Notes.

The Partnership initially appoints the Trustee to act as the Registrar and Paying Agent and to act as Custodian with respect to the Global Notes.

Section 2.04 Paying Agent to Hold Money in Trust.

The Partnership will require each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in trust for the benefit of Holders or the Trustee all money held by the Paying Agent for the payment of principal of, premium, if any, on, and interest, if any, on, the Notes, and will notify the Trustee of any default by the Partnership in making any such payment. While any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Partnership at any time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if other than the Partnership or a Subsidiary) will have no further liability for the money. If the Partnership or a Subsidiary acts as Paying Agent, it will segregate and hold in a separate trust fund for the benefit of the Holders all money held by it as Paying Agent. Upon any bankruptcy or reorganization proceedings relating to the Partnership, the Trustee will serve as Paying Agent for the Notes.

Section 2.05 Holder Lists.

The Trustee will preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of all Holders. If the Trustee is not the Registrar, the Partnership will furnish to the Trustee at least seven Business Days before each interest payment date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of the Holders of the Notes.

Section 2.06 Transfer and Exchange.

(a) Transfer and Exchange of Global Notes . A Global Note may not be transferred except as a whole by the Depositary to a nominee of the Depositary, by a nominee of the Depositary to the Depositary or to another nominee of the Depositary, or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary. All Global Notes will be exchanged by the Partnership for Definitive Notes if:

(1) the Partnership delivers to the Trustee notice from the Depositary that it is unwilling or unable to continue to act as Depositary or that it is no longer a clearing agency registered under the Exchange Act and, in either case, a successor Depositary is not appointed by the Partnership within 120 days after the date of such notice from the Depositary;

(2) the Partnership in its sole discretion determines that the Global Notes (in whole but not in part) should be exchanged for Definitive Notes and delivers a written notice to such effect to the Trustee; or

(3) there has occurred and is continuing a Default or Event of Default with respect to the Notes.

Upon the occurrence of either of the events in Section 2.06(a)(1) or 2.06(a)(2), Definitive Notes shall be issued in such names as the Depositary shall instruct the Trustee. Global Notes also may be exchanged or replaced, in whole or in part, as provided in Sections 2.07 and 2.10 hereof. Every Note authenticated and delivered in exchange for, or in lieu of, a Global Note or any portion thereof, pursuant to

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this Section 2.06 or Section 2.07 or 2.10 hereof, shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note may not be exchanged for another Note other than as provided in this Section 2.06(a), however, beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.06(b), 2.06(c) or 2.06(f) hereof.

(b) Transfer and Exchange of Beneficial Interests in the Global Notes . The transfer and exchange of beneficial interests in the Global Notes will be effected through the Depositary, in accordance with the provisions of this Indenture and the Applicable Procedures. Beneficial interests in the Restricted Global Notes will be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Transfers of beneficial interests in the Global Notes also will require compliance with either Section 2.06(b)(1) or 2.06(b)(2), as applicable, as well as one or more of the other following subparagraphs, as applicable:

(1) Transfer of Beneficial Interests in the Same Global Note . Beneficial interests in any Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with the transfer restrictions set forth in the Private Placement Legend; provided, however , that prior to the expiration of the Restricted Period, transfers of beneficial interests in the Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Beneficial interests in any Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Registrar to effect the transfers described in this Section 2.06(b)(1).

(2) All Other Transfers and Exchanges of Beneficial Interests in Global Notes. In connection with all transfers and exchanges of beneficial interests that are not subject to Section 2.06(b)(1) above, the transferor of such beneficial interest must deliver to the Registrar either:

(A) both:

(i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to credit or cause to be credited a beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged; and

(ii) instructions given in accordance with the Applicable Procedures containing information regarding the Participant account to be credited with such increase; or

(B) both:

(i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to cause to be issued a Definitive Note in an amount equal to the beneficial interest to be transferred or exchanged; and

(ii) instructions given by the Depositary to the Registrar containing information regarding the Person in whose name such Definitive Note shall be registered to effect the transfer or exchange referred to in Section 2.06(b)(1) hereof.

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Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 2.06(g) hereof.

(3) Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in any Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted Global Note if the transfer complies with the requirements of Section 2.06(b)(2) hereof and the Registrar receives the following:

(A) if the transferee will take delivery in the form of a beneficial interest in the 144A Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(B) if the transferee will take delivery in the form of a beneficial interest in the Regulation S Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and

(4) Transfer and Exchange of Beneficial Interests in a Restricted Global Note for Beneficial Interests in an Unrestricted Global Note. A beneficial interest in any Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.06(b)(2) hereof and the Registrar receives the following:

(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(a) thereof; or

(B) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this Section 2.06(b)(4), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

If any such transfer is effected pursuant to this Section 2.06(b)(4) at a time when an Unrestricted Global Note has not yet been issued, the Partnership shall issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred pursuant to this Section 2.06(b)(4).

Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred to Persons who take delivery thereof in the form of, a beneficial interest in a Restricted Global Note.

(c) Transfer or Exchange of Beneficial Interests for Definitive Notes.

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(1) Beneficial Interests in Restricted Global Notes to Restricted Definitive Notes. If any holder of a beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Restricted Definitive Note, then, upon receipt by the Registrar of the following documentation:

(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (2)(a) thereof;

(B) if such beneficial interest is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such beneficial interest is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof;

(D) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof;

(E) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act other than those listed in Sections 2.06(c)(1)(B) through (D), a certificate to the effect set forth in Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable; or

(F) if such beneficial interest is being transferred to the Partnership or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof,

the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Partnership shall execute and the Trustee shall authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c) shall be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest shall instruct the Registrar through instructions from the Depositary and the Participant or Indirect Participant. The Trustee shall deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c)(1) shall bear the Private Placement Legend and shall be subject to all restrictions on transfer contained therein.

(2) Beneficial Interests in Restricted Global Notes to Unrestricted Definitive Notes. A holder of a beneficial interest in a Restricted Global Note may exchange such beneficial interest for an Unrestricted Definitive Note or may transfer such beneficial interest to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note only if the Registrar receives the following:

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(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(b) thereof; or

(B) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this Section (2), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

(3) Beneficial Interests in Unrestricted Global Notes to Unrestricted Definitive Notes. If any holder of a beneficial interest in an Unrestricted Global Note proposes to exchange such beneficial interest for a Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Definitive Note, then, upon satisfaction of the conditions set forth in Section 2.06(b)(2) hereof, the Trustee will cause the aggregate principal amount of the applicable Unrestricted Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Partnership will execute and the Trustee will authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(3) will be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest requests through instructions to the Registrar from or through the Depositary and the Participant or Indirect Participant. The Trustee will deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(3) will not bear the Private Placement Legend.

(d) Transfer and Exchange of Definitive Notes for Beneficial Interests.

(1) Restricted Definitive Notes to Beneficial Interests in Restricted Global Notes. If any Holder of a Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Registrar of the following documentation:

(A) if the Holder of such Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (2)(b) thereof;

(B) if such Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such Restricted Definitive Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof;

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(D) if such Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof;

(E) if such Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act other than those listed in Sections (B) through (D), a certificate to the effect set forth in Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable; or

(F) if such Restricted Definitive Note is being transferred to the Partnership or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof,

the Trustee will cancel the Restricted Definitive Note and increase or cause to be increased the aggregate principal amount of the appropriate Restricted Global Note.

(2) Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of a Restricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if the Registrar receives the following:

(A) if the Holder of such Definitive Notes proposes to exchange such Notes for a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(c) thereof; or

(B) if the Holder of such Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this Section 2.06(d)(2), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

Upon satisfaction of the conditions of either Section 2.06(d)(2)(A) or 2.06(d)(2)(B) hereof, the Trustee will cancel the Definitive Notes and increase or cause to be increased the aggregate principal amount of the Unrestricted Global Note.

(3) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of an Unrestricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time. Upon receipt of a request for such an exchange or transfer, the Trustee will cancel the applicable Unrestricted Definitive Note and increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global Notes.

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If any such exchange or transfer from a Definitive Note to a beneficial interest is effected pursuant to Section 2.06(d)(2) hereof or this Section 2.06(d)(3) at a time when an Unrestricted Global Note has not yet been issued, the Partnership will issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee will authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of Definitive Notes so transferred.

(e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon request by a Holder of Definitive Notes and such Holder’s compliance with the provisions of this Section 2.06(e), the Registrar will register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting Holder must present or surrender to the Registrar the Definitive Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Registrar duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting Holder must provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.06(e).

(1) Restricted Definitive Notes to Restricted Definitive Notes. Any Restricted Definitive Note may be transferred to and registered in the name of Persons who take delivery thereof in the form of a Restricted Definitive Note if the Registrar receives the following:

(A) if the transfer will be made pursuant to Rule 144A, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(B) if the transfer will be made pursuant to Rule 903 or Rule 904, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and

(C) if the transfer will be made pursuant to any other exemption from the registration requirements of the Securities Act, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable.

(2) Restricted Definitive Notes to Unrestricted Definitive Notes. Any Restricted Definitive Note may be exchanged by the Holder thereof for an Unrestricted Definitive Note or transferred to a Person or Persons who take delivery thereof in the form of an Unrestricted Definitive Note if the Registrar receives the following:

(A) if the Holder of such Restricted Definitive Notes proposes to exchange such Notes for an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(d) thereof; or

(B) if the Holder of such Restricted Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this Section 2.06(e)(2), if the Registrar so requests, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

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(3) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A Holder of Unrestricted Definitive Notes may transfer such Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note. Upon receipt of a request to register such a transfer, the Registrar shall register the Unrestricted Definitive Notes pursuant to the instructions from the Holder thereof.

(f) Legends. The following legends will appear on the face of all Global Notes and Definitive Notes issued under this Indenture unless specifically stated otherwise in the applicable provisions of this Indenture.

(1) Private Placement Legend .

(A) Except as permitted by Section 2.06(f)(1)(B) hereof, each Global Note and each Definitive Note (and all Notes issued in exchange therefor or substitution thereof) shall bear the legend in substantially the following form:

“THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION.

NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF, AGREES ON ITS OWN BEHALF AND ON BEHALF OF ANY INVESTOR ACCOUNT FOR WHICH IT HAS PURCHASED SECURITIES, TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) THAT IS [IN THE CASE OF RULE 144A NOTES: SIX MONTHS AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE LAST DATE ON WHICH THE ISSUER OR ANY AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY),] [IN THE CASE OF REGULATION S NOTES: 40 DAYS AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF, THE ORIGINAL ISSUE DATE OF THE ISSUANCE OF ANY ADDITIONAL NOTES AND THE DATE ON WHICH THIS SECURITY (OR ANY PREDECESSOR OF SUCH SECURITY) WAS FIRST OFFERED TO PERSONS OTHER THAN DISTRIBUTORS (AS DEFINED IN RULE 902 OF REGULATION S) IN RELIANCE ON REGULATION S], ONLY (A) TO THE PARTNERSHIP OR ANY SUBSIDIARY THEREOF, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT (“RULE 144A”), TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, (E) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501(a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS NOT A QUALIFIED INSTITUTIONAL BUYER AND THAT IS PURCHASING FOR

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ITS OWN ACCOUNT OR FOR THE ACCOUNT OF ANOTHER INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF SECURITIES OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE PARTNERSHIP’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSES (D), (E) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/ OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. [IN THE CASE OF REGULATION S NOTES: BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.]

BY ITS ACQUISITION OF THIS SECURITY (OR ANY INTEREST HEREIN), THE HOLDER HEREOF WILL BE DEEMED TO HAVE REPRESENTED AND WARRANTED THAT EITHER (1) NO PORTION OF THE ASSETS USED BY SUCH HOLDER TO ACQUIRE OR HOLD THIS SECURITY (OR ANY INTEREST HEREIN) CONSTITUTES THE ASSETS OF A PLAN THAT IS SUBJECT TO TITLE I OF THE U.S. EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), A PLAN, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER ARRANGEMENT THAT IS SUBJECT TO THE PROHIBITED TRANSACTION PROVISIONS OF SECTION 406 OF ERISA OR SECTION 4975 OF THE U.S. INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), ANY GOVERNMENTAL PLAN, CHURCH PLAN, NON-U.S. PLAN, OR OTHER PLAN SUBJECT TO PROVISIONS UNDER ANY OTHER FEDERAL, STATE, LOCAL, NON-U.S. OR OTHER LAWS OR REGULATIONS THAT ARE SIMILAR TO SUCH PROVISIONS OF ERISA AND/OR THE CODE (“SIMILAR LAWS”) OR AN ENTITY OR ACCOUNT THAT IS DEEMED TO HOLD THE PLAN ASSETS OF ANY OF THE FOREGOING OR (2) THE ACQUISITION AND HOLDING OF THIS SECURITY (OR ANY INTEREST HEREIN) WILL NOT CONSTITUTE A NON-EXEMPT PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE OR A SIMILAR VIOLATION UNDER ANY APPLICABLE SIMILAR LAWS.”

(B) Notwithstanding the foregoing, any Global Note or Definitive Note issued pursuant to Sections 2.06(b)(4), 2.06(c)(2), 2.06(c)(3), 2.06(d)(2), 2.06(d)(3), 2.06(e)(2), 2.06(e)(3) or this 2.06(f) (and all Notes issued in exchange therefor or substitution thereof) will not bear the Private Placement Legend.

(2) Global Note Legend . Each Global Note will bear a legend in substantially the following form:

“THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE PARTNERSHIP.

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UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) (“DTC”), TO THE PARTNERSHIP OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.”

(3) Regulation S Global Note Legend. The Regulation S Global Note will bear a legend in substantially the following form:

“THE RIGHTS ATTACHING TO THIS REGULATION S GLOBAL NOTE, AND THE CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR DEFINITIVE NOTES OR OTHER TRANSFERS OR EXCHANGES DURING THE 40 DAY DISTRIBUTION COMPLIANCE PERIOD AS DEFINED UNDER REGULATION S UNDER THE SECURITIES ACT, ARE AS SPECIFIED IN THE INDENTURE (AS DEFINED HEREIN).”

(g) Cancellation and/or Adjustment of Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note will be returned to or retained and canceled by the Trustee in accordance with Section 2.11 hereof. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note will be reduced accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note will be increased accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

(h) General Provisions Relating to Transfers and Exchanges.

(1) To permit registrations of transfers and exchanges, the Partnership will execute and the Trustee will authenticate Global Notes and Definitive Notes upon receipt of an Authentication Order in accordance with Section 2.02 hereof or at the Registrar’s request.

(2) No service charge will be made to a Holder of a beneficial interest in a Global Note or to a Holder of a Definitive Note for any registration of transfer or exchange, but the Partnership may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer taxes or similar governmental charge payable upon exchange or transfer pursuant to Sections 2.10, 3.06, 3.09, Section 4.10, 4.15 and 9.05 hereof).

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(3) All Global Notes and Definitive Notes issued upon any registration of transfer or exchange of Global Notes or Definitive Notes will be the valid obligations of the Partnership, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Global Notes or Definitive Notes surrendered upon such registration of transfer or exchange.

(4) Neither the Registrar nor the Partnership will be required:

(A) to issue, to register the transfer of or to exchange any Notes during a period beginning at the opening of business 15 days before the day of any selection of Notes for redemption under Section 3.02 hereof and ending at the close of business on the day of selection;

(B) to register the transfer of or to exchange any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part; or

(C) to register the transfer of or to exchange a Note between a record date and the next succeeding interest payment date.

(5) Prior to due presentment for the registration of a transfer of any Note, the Trustee, any Agent and the Partnership may deem and treat the Person in whose name any Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of and interest on such Notes and for all other purposes, and none of the Trustee, any Agent or the Partnership shall be affected by notice to the contrary.

(6) The Trustee will authenticate Global Notes and Definitive Notes in accordance with the provisions of Section 2.02 hereof.

(7) All certifications, certificates and Opinions of Counsel required to be submitted to the Registrar pursuant to this Section 2.06 to effect a registration of transfer or exchange may be submitted by facsimile.

(8) Neither the Trustee nor any agent of the Trustee shall have any responsibility for any actions taken or not taken by the Depositary. The Trustee may treat and consider the person in whose name each Note is registered in the registration books as the holder and absolute owner of such Note for all purposes whatsoever (or may list out various purposes: the purpose of payment of principal, premium, if any, and interest with respect to such Note, for the purpose of giving notices of redemption or tender and other matters with respect to such Note, for the purpose of registering transfers with respect to such Note, and for all purposes whatsoever).

(9) The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among beneficial owners of interests in any Global Notes) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements of this Indenture.

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Section 2.07 Replacement Notes.

If any mutilated Note is surrendered to the Trustee or the Partnership and the Trustee receives evidence to its satisfaction of the destruction, loss or theft of any Note, the Partnership will issue and the Trustee, upon receipt of an Authentication Order, will authenticate a replacement Note if the Trustee’s requirements are met. An indemnity bond must be supplied by the Holder that is sufficient in the judgment of each of the Trustee and the Partnership to protect the Partnership, the Trustee, any Agent and any authenticating agent from any loss that any of them may suffer if a Note is replaced. The Partnership may charge for its expenses in replacing a Note.

Every replacement Note is an additional obligation of the Partnership and will be entitled to all of the benefits of this Indenture equally and proportionately with all other Notes duly issued hereunder.

Section 2.08 Outstanding Notes.

The Notes outstanding at any time are all the Notes authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest in a Global Note effected by the Trustee in accordance with the provisions hereof, and those described in this Section 2.08 as not outstanding. Except as set forth in Section 2.09 hereof, a Note does not cease to be outstanding because the Partnership or an Affiliate of the Partnership holds the Note; however, Notes held by the Partnership or a Subsidiary of the Partnership shall not be deemed to be outstanding for purposes of Section 3.07(a) hereof.

If a Note is replaced pursuant to Section 2.07 hereof, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Note is held by a protected purchaser.

If the principal amount of any Note is considered paid under Section 4.01 hereof, it ceases to be outstanding and interest on it ceases to accrue.

If the Paying Agent (other than the Partnership, a Subsidiary or an Affiliate of any thereof) holds, on a redemption date or maturity date, money sufficient to pay Notes payable on that date, then on and after that date such Notes will be deemed to be no longer outstanding and will cease to accrue interest.

Section 2.09 Treasury Notes.

In determining whether the Holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned by the Partnership or any Guarantor, or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Partnership or any Guarantor, will be considered as though not outstanding, except that for the purposes of determining whether the Trustee will be protected in relying on any such direction, waiver or consent, only Notes that a Responsible Officer of the Trustee actually knows are so owned will be so disregarded.

Section 2.10 Temporary Notes.

Until certificates representing Notes are ready for delivery, the Partnership may prepare and the Trustee, upon receipt of an Authentication Order, will authenticate temporary Notes. Temporary Notes will be substantially in the form of certificated Notes but may have variations that the Partnership considers appropriate for temporary Notes and as may be reasonably acceptable to the Trustee. Without unreasonable delay, the Partnership will prepare and the Trustee will authenticate definitive Notes in exchange for temporary Notes.

Holders of temporary Notes will be entitled to all of the benefits of this Indenture.

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Section 2.11 Cancellation.

The Partnership at any time may deliver Notes to the Trustee for cancellation. The Registrar and Paying Agent will forward to the Trustee any Notes surrendered to them for registration of transfer, exchange or payment. The Trustee and no one else will cancel all Notes surrendered for registration of transfer, exchange, payment, replacement or cancellation and will destroy canceled Notes in its customary manner (subject to the record retention requirements of the Exchange Act). Upon written request, certification of the destruction of all canceled Notes will be delivered to the Partnership. The Partnership may not issue new Notes to replace Notes that it has paid or that have been delivered to the Trustee for cancellation.

Section 2.12 Defaulted Interest.

If the Partnership defaults in a payment of interest on the Notes, it will pay the defaulted interest in any lawful manner plus, to the extent lawful, interest payable on the defaulted interest, to the Persons who are Holders on a subsequent special record date, in each case at the rate provided in the Notes and in Section 4.01 hereof. The Partnership will notify the Trustee in writing of the amount of defaulted interest proposed to be paid on each Note and the date of the proposed payment. The Partnership will fix or cause to be fixed each such special record date and payment date; provided that no such special record date may be less than 10 days prior to the related payment date for such defaulted interest. At least 15 days before the special record date, the Partnership (or, upon the written request of the Partnership, the Trustee in the name and at the expense of the Partnership) will mail or cause to be mailed to Holders a notice that states the special record date, the related payment date and the amount of such interest to be paid. The Trustee will have no duty whatsoever to determine whether any defaulted interest is payable or the amount thereof.

ARTICLE 3

REDEMPTION AND PREPAYMENT

Section 3.01 Notices to Trustee.

If the Partnership elects to redeem Notes pursuant to the optional redemption provisions of Section 3.07 hereof, it must furnish to the Trustee, at least five Business Days (unless a shorter period shall be acceptable to the Trustee) before the date of giving notice of the redemption pursuant to Section Section 3.03 hereof, an Officers’ Certificate setting forth:

(1) the clause of this Indenture pursuant to which the redemption shall occur;

(2) the redemption date;

(3) the principal amount of Notes to be redeemed; and

(4) the redemption price.

Section 3.02 Selection of Notes to Be Redeemed.

If less than all of the Notes are to be redeemed at any time, the Trustee will select Notes for redemption on a pro rata basis (or, in the case of Notes issued in global form pursuant to Article 2 hereof, pursuant to the applicable procedures of DTC) unless otherwise required by law or applicable stock exchange requirements.

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The Trustee will promptly notify the Partnership in writing of the Notes selected for redemption and, in the case of any Note selected for partial redemption, the principal amount thereof to be redeemed. Notes and portions of Notes selected will be in minimum amounts of $2,000 or whole multiples of $1,000 in excess thereof; except that if all of the Notes of a Holder are to be redeemed, the entire outstanding amount of Notes held by such Holder shall be redeemed. Except as provided in the preceding sentence, provisions of this Indenture that apply to Notes called for redemption also apply to portions of Notes called for redemption.

Section 3.03 Notice of Redemption.

Subject to the provisions of Section 3.09 hereof, at least 30 days but not more than 60 days before a redemption date, the Partnership will mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of this Indenture pursuant to Articles 8 or 11 hereof.

The notice will identify the Notes (including the issue date, CUSIP number, interest rate, maturity date and certificate number, if applicable) to be redeemed and will state:

(1) the redemption date;

(2) the redemption price;

(3) if any Note is being redeemed in part, the portion of the principal amount of such Note to be redeemed and that, after the redemption date upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion will be issued upon cancellation of the original Note;

(4) the name and address of the Paying Agent;

(5) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price;

(6) that, unless the Partnership defaults in making such redemption payment, interest on Notes called for redemption ceases to accrue on and after the redemption date;

(7) the paragraph of the Notes and/or Section of this Indenture pursuant to which the Notes called for redemption are being redeemed; and

(8) that no representation is made as to the correctness or accuracy of the CUSIP number, if any, listed in such notice or printed on the Notes.

At the Partnership’s request, the Trustee will give the notice of redemption in the Partnership’s name and at its expense; provided, however , that the Partnership has delivered to the Trustee an Officers’ Certificate pursuant to Section 3.01 hereof requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in this Section 3.03.

Any such redemption may, at the Partnership’s discretion, be subject to one or more conditions precedent, including any related Equity Offering or a Change of Control. In addition, if such redemption is subject to the satisfaction of one or more conditions precedent, the related notice shall describe each such condition, and if applicable, shall state that, in the Partnership’s discretion, the redemption date may be

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delayed until such time as any or all such conditions shall be satisfied or waived (provided that in no event shall such redemption date be delayed to a date later than 60 days after the date on which such notice was mailed), or such redemption may not occur and such notice may be rescinded in the event that any or all such conditions shall not have been satisfied or waived by the redemption date, or by the redemption date as so delayed. If any such condition precedent has not been satisfied, the Partnership shall provide written notice to the Trustee prior to the close of business on the Business Day immediately prior to the redemption date (or such shorter period as may be acceptable to the Trustee). Upon receipt of such notice, the notice of redemption shall be rescinded or delayed, and the redemption of the Notes shall be rescinded or delayed as provided in such notice. Upon receipt, the Trustee shall provide such notice to each holder in the same manner in which the notice of redemption was given.

If any Note is to be redeemed in part only, the notice of redemption that relates to that Note will state the portion of the principal amount of that Note that is to be redeemed. A new Note in principal amount equal to the unredeemed portion of the original Note will be issued in the name of the holder of Notes upon cancellation of the original Note. Subject to the provisions of the preceding paragraph, Notes called for redemption become due on the date fixed for redemption. On and after the redemption date, interest ceases to accrue on Notes or portions of Notes called for redemption.

Section 3.04 Effect of Notice of Redemption.

Once a notice of redemption is mailed in accordance with Section 3.03 hereof, Notes called for redemption become irrevocably due and payable on the redemption date at the redemption price, subject to satisfaction of conditions precedent specified in the applicable notice of redemption.

Section 3.05 Deposit of Redemption Price.

Prior to 11:00 a.m., New York City time, on the redemption date, the Partnership will deposit with the Trustee or with the Paying Agent money sufficient to pay the redemption price of and accrued interest, if any, on all Notes to be redeemed on that date. The Trustee or the Paying Agent will promptly return to the Partnership any money deposited with the Trustee or the Paying Agent by the Partnership in excess of the amounts necessary to pay the redemption price of and accrued interest, if any, on all Notes to be redeemed.

If the Partnership complies with the provisions of the preceding paragraph, on and after the redemption date, interest will cease to accrue on the Notes or the portions of Notes called for redemption. If a Note is redeemed on or after an interest record date but on or prior to the related interest payment date, then any accrued and unpaid interest shall be paid to the Person in whose name such Note was registered at the close of business on such record date. If any Note called for redemption is not so paid upon surrender for redemption because of the failure of the Partnership to comply with the preceding paragraph, interest shall be paid on the unpaid principal, from the redemption date until such principal is paid, and to the extent lawful on any interest not paid on such unpaid principal, in each case at the rate provided in the Notes and in Section 4.01 hereof.

Section 3.06 Notes Redeemed in Part.

Upon surrender of a Note that is redeemed in part, the Partnership will issue and, upon receipt of an Authentication Order, the Trustee will authenticate for the Holder at the expense of the Partnership a new Note equal in principal amount to the unredeemed portion of the Note surrendered.

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Section 3.07 Optional Redemption.

(a) At any time prior to August 1, 2021, the Partnership may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under this Indenture, upon notice as provided in Section 3.03 hereof, at a redemption price equal to 109.500% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to, but excluding, the date of redemption (subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date that is on or prior to the redemption date), in an amount of cash not greater than the net cash proceeds of one or more Equity Offerings; provided that:

(1) at least 65% of the aggregate principal amount of Notes originally issued under this Indenture (excluding Notes held by the Partnership and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and

(2) the redemption occurs within 180 days of the date of the closing of such Equity Offering.

(b) At any time prior to August 1, 2021, the Partnership may on any one or more occasions redeem all or a part of the Notes, upon notice as provided in Section 3.03 hereof, at a redemption price equal to 100% of the principal amount of the Notes redeemed, plus the Applicable Premium as of, and accrued and unpaid interest, if any, to, but excluding, the date of redemption, subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date.

(c) Except as set forth in Sections 3.07(a), Section 3.07(b) or 4.13(d), the Notes will not be redeemable at the Partnership’s option prior to August 1, 2021.

(d) On or after August 1, 2021, the Partnership may on any one or more occasions redeem all or a part of the Notes, upon notice as provided in Section 3.03 hereof, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest, if any, on the Notes redeemed, to, but excluding, the applicable date of redemption, if redeemed during the twelve-month period beginning on August 1 of the years indicated below, subject to the rights of Holders on the relevant record date to receive interest on the relevant interest payment date:

Unless the Partnership defaults in the payment of the redemption price, interest will cease to accrue on the Notes or portions thereof called for redemption on the applicable redemption date.

(e) Any redemption pursuant to this Section 3.07 shall be made pursuant to the provisions of Sections 3.01 through 3.06 hereof.

Section 3.08 Mandatory Redemption.

The Partnership is not required to make mandatory redemption or sinking fund payments with respect to the Notes. The Partnership and its Affiliates may at any time and from time to time purchase Notes in the open market, by tender offer, negotiated transactions or otherwise.

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Section 3.09 Offer to Purchase by Application of Excess Proceeds.

In the event that, pursuant to Section Section 4.10 hereof, the Partnership is required to commence an Asset Sale Offer (as defined herein), it will follow the procedures specified below.

The Asset Sale Offer shall be made to all Holders and all holders of other Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in this Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets. The Asset Sale Offer will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business Days, except to the extent that a longer period is required by applicable law (the “ Offer Period ”). No later than three Business Days after the termination of the Offer Period (the “ Purchase Date ”), the Partnership will apply all Excess Proceeds (the “Offer Amount” ) to the purchase of Notes and such other pari passu Indebtedness (on a pro rata basis based on the principal amount of Notes and such other pari passu Indebtedness surrendered, if applicable) or, if less than the Offer Amount has been tendered, all Notes and other Indebtedness tendered in response to the Asset Sale Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made.

If the Purchase Date is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest, if any, will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender Notes pursuant to the Asset Sale Offer.

Upon the commencement of an Asset Sale Offer, the Partnership will send, by first class mail, a notice to each of the Holders, with a copy to the Trustee. The notice will contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Asset Sale Offer. The notice, which will govern the terms of the Asset Sale Offer, will state:

(1) that the Asset Sale Offer is being made pursuant to this Section 3.09 and Section 4.10 hereof and the length of time the Asset Sale Offer will remain open;

(2) the Offer Amount, the purchase price and the Purchase Date;

(3) that any Note not tendered or accepted for payment will continue to accrue interest;

(4) that, unless the Partnership defaults in making such payment, any Note accepted for payment pursuant to the Asset Sale Offer will cease to accrue interest after the Purchase Date;

(5) that Holders electing to have a Note purchased pursuant to an Asset Sale Offer may elect to have Notes purchased in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof;

(6) that Holders electing to have Notes purchased pursuant to any Asset Sale Offer will be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by book-entry transfer, to the Partnership, a Depositary, if appointed by the Partnership, or a Paying Agent at the address specified in the notice at least three days before the Purchase Date;

(7) that Holders will be entitled to withdraw their election if the Partnership, the Depositary or the Paying Agent, as the case may be, receives, not later than the expiration of the Offer Period, facsimile or electronic transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement that such Holder is withdrawing his election to have such Note purchased;

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(8) that, if the aggregate principal amount of Notes and other pari passu Indebtedness tendered in (or required to be prepaid or redeemed in connection with) such Asset Sale Offer exceeds the Offer Amount, the Trustee will select the Notes and the Partnership will select such other pari passu Indebtedness to be purchased on a pro rata basis (except that any Notes represented by a Note in global form will be selected by such method as DTC or its nominee or successor may require or, where such nominee or successor is the Trustee, a method that most nearly approximates pro rata selection as the Trustee deems fair and appropriate unless otherwise required by law), based on the amounts tendered or required to be prepaid or redeemed (with such adjustments as may be deemed appropriate by the Partnership so that only Notes in minimum denominations of $2,000, or integral multiples of $1,000 in excess thereof, will be purchased); and

(9) that Holders whose Notes were purchased only in part will be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered (or transferred by book-entry transfer).

On or before the Purchase Date, the Partnership will, to the extent lawful, accept for payment, on a pro rata basis to the extent necessary, the Offer Amount of Notes or portions thereof tendered pursuant to the Asset Sale Offer, or if less than the Offer Amount has been tendered, all Notes tendered, and will deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating that such Notes or portions thereof were accepted for payment by the Partnership in accordance with the terms of this Section 3.09. The Partnership, the Depositary or the Paying Agent, as the case may be, will promptly (but in any case not later than five days after the Purchase Date) mail or deliver to each tendering Holder an amount equal to the purchase price of the Notes tendered by such Holder and accepted by the Partnership for purchase, and the Partnership will promptly issue a new Note, and the Trustee, upon written request from the Partnership, will authenticate and mail or deliver (or cause to be transferred by book entry) such new Note to such Holder, in a principal amount equal to any unpurchased portion of the Note surrendered. Any Note not so accepted shall be promptly mailed or delivered by the Partnership to the Holder thereof. The Partnership will publicly announce the results of the Asset Sale Offer on the Purchase Date.

Other than as specifically provided in this Section 3.09, any purchase pursuant to this Section 3.09 shall be made pursuant to the provisions of Sections 3.01 through 3.06 hereof.

ARTICLE 4

COVENANTS

Section 4.01 Payment of Notes.

The Partnership will pay or cause to be paid the principal of, premium, if any, on, and interest, if any, on, the Notes on the dates and in the manner provided in the Notes. Principal, premium, if any, and interest, if any, will be considered paid on the date due if the Paying Agent, if other than the Partnership or a Subsidiary thereof, holds as of 11:00 a.m. Eastern Time on the due date money deposited by the Partnership in immediately available funds and designated for and sufficient to pay all principal, premium, if any, and interest, if any, then due.

The Partnership will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at the rate equal to the interest rate applicable to the Notes per annum to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest, if any (without regard to any applicable grace period), at the same rate to the extent lawful.

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Section 4.02 Maintenance of Office or Agency.

The Partnership will maintain in the Borough of Manhattan, the City of New York, an office or agency (which may be an office of the Trustee or an affiliate of the Trustee, Registrar or co-registrar) where Notes may be surrendered for registration of transfer or for exchange and where notices and demands to or upon the Partnership in respect of the Notes and this Indenture may be served. The Partnership will give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Partnership fails to maintain any such required office or agency or fails to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee.

The Partnership may also from time to time designate one or more other offices or agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided, however , that no such designation or rescission will in any manner relieve the Partnership of its obligation to maintain an office or agency in the Borough of Manhattan, the City of New York for such purposes. The Partnership will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

The Partnership hereby designates the Corporate Trust Office of the Trustee as one such office or agency of the Partnership in accordance with Section 2.03 hereof.

Section 4.03 Reports.

(a) Whether or not required by the rules and regulations of the SEC, so long as any Notes are outstanding, the Partnership will furnish (whether through hard copy or internet access) to the Holders of Notes, or cause the Trustee to furnish to the Holders of Notes, within the time periods specified in the SEC’s rules and regulations:

(1) all quarterly and annual reports that would be required to be filed with the SEC on Forms 10-Q and 10-K if the Partnership were required to file such reports as a non-accelerated filer; and

(2) all current reports that would be required to be filed with the SEC on Form 8-K if the Partnership were required to file such reports.

The Partnership will be deemed to have furnished each report required by Section 4.03(a) to the Trustee and the Holders of Notes if it has filed such report with the SEC using the EDGAR filing system (or any successor system) and such report is publicly available.

If, notwithstanding the foregoing, the SEC will not accept the Partnership’s filings for any reason, the Partnership will post the reports referred to in this Section 4.03(a) on its website within the time periods contemplated herein.

The Partnership may satisfy its obligations under this Section 4.03(a) with respect to financial information relating to the Partnership by furnishing financial information relating to any parent company of the Partnership; provided that the same be accompanied by consolidated information, in the form of financial statement footnotes or otherwise, that explains in reasonable detail the differences between the information relating to such parent company, on the one hand, and the information relating to the Partnership and its Restricted Subsidiaries on a standalone basis, on the other hand.

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(b) Any and all Defaults or Events of Default arising from a failure to furnish in a timely manner any information or report required by Section 4.03(a) shall be deemed cured (and the Partnership shall be deemed to be in compliance with Section 4.03(a)) upon furnishing such information or report as contemplated by Section 4.03(a) (but without regard to the date on which such information or report is so furnished); provided that such cure shall not otherwise affect the rights of the Holders of Notes under Section 6.01 if principal of, premium, if any, on, and interest on the Notes have been accelerated in accordance with the terms of this Indenture and such acceleration has not been rescinded or cancelled prior to such cure.

(c) To the extent not satisfied by the foregoing, for so long as the Notes are outstanding, the Partnership shall furnish to Holders of Notes, prospective investors, broker-dealers and securities analysts, upon their request, any information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act.

(d) Delivery of such reports, information and documents pursuant to this Section 4.03 to the Trustee is for informational purposes only, and the Trustee’s receipt thereof shall not constitute actual or constructive knowledge or notice of any information contained therein or determinable from information contained therein, including the Partnership’s, any Guarantor’s or any other Person’s compliance with any of the covenants under this Indenture or the Notes (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates). The Trustee will not be obligated to monitor or confirm, on a continuing basis or otherwise, the Partnership’s, any Guarantor’s or any other Person’s compliance with any of the covenants described herein or to determine whether such reports, information or documents have been posted on any website or filed with the SEC using the EDGAR filing system (or any successor system) and publicly available.

Section 4.04 Compliance Certificate.

(a) The Partnership shall deliver to the Trustee, within 90 days after the end of each fiscal year, an Officers’ Certificate stating that a review of the activities of the Partnership and its Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers with a view to determining whether the Partnership has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to each such Officer signing such certificate, that to the best of his or her knowledge the Partnership has kept, observed, performed and fulfilled each and every covenant contained in this Indenture and is not in default in the performance or observance of any of the terms, provisions and conditions of this Indenture (or, if a Default or Event of Default has occurred, describing all such Defaults or Events of Default of which he or she may have knowledge and what action the Partnership is taking or proposes to take with respect thereto).

(b) So long as any of the Notes are outstanding, the Partnership will deliver to the Trustee, within 30 days of any Officer becoming aware of any Default or Event of Default, an Officers’ Certificate specifying such Default or Event of Default and what action the Partnership is taking or proposes to take with respect thereto.

Section 4.05 Taxes.

The Partnership will pay, and will cause each of its Subsidiaries to pay, prior to delinquency, all material taxes, assessments, and governmental levies except such as are contested in good faith and by appropriate proceedings or where the failure to effect such payment is not adverse in any material respect to the Holders of the Notes.

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Section 4.06 Stay, Extension and Usury Laws.

The Partnership and each of the Guarantors covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the performance of this Indenture; and the Partnership and each of the Guarantors (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law has been enacted.

Section 4.07 Restricted Payments.

(a) The Partnership will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly:

(i) declare or pay any dividend or make any other payment or distribution on account of the Partnership’s or any of its Restricted Subsidiaries’ Equity Interests (including any payment in connection with any merger or consolidation involving the Partnership or any of its Restricted Subsidiaries) or to the direct or indirect holders of the Partnership’s or any of its Restricted Subsidiaries’ Equity Interests in their capacity as such (other than dividends or distributions payable in Equity Interests (other than Disqualified Equity) of the Partnership and other than dividends or distributions payable to the Partnership or a Restricted Subsidiary of the Partnership);

(ii) purchase, redeem or otherwise acquire or retire for value (including in connection with any merger or consolidation involving the Partnership) any Equity Interests of the Partnership or any direct or indirect parent of the Partnership (other than in exchange for Equity Interests of the Partnership (other than Disqualified Equity));

(iii) make any payment on or with respect to, or purchase, redeem, defease or otherwise acquire or retire for value any Indebtedness of the Partnership or any Guarantor that is contractually subordinated to the Notes or to any Note Guarantee (excluding any intercompany Indebtedness between or among the Partnership and any of its Restricted Subsidiaries), except a payment of interest or principal within one year of the Stated Maturity thereof; or

(iv) make any Restricted Investment

(all such payments and other actions set forth in subparagraphs (i) through (iv) above being collectively referred to as “ Restricted Payments ”), unless, at the time of and after giving effect to such Restricted Payment, no Default or Event of Default has occurred and is continuing or would occur as a consequence of such Restricted Payment and:

(1) during the period commencing on the date of this Indenture and ending immediately prior to the consummation of the Corporate Conversion, either:

(A) if the Fixed Charge Coverage Ratio for the Partnership’s most recently ended four full fiscal quarters is not less than 2.25 to 1.00, such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by the Partnership and its Restricted Subsidiaries (excluding Restricted Payments permitted by Sections 4.07(b)(2) through 4.07(b)(13)) during the quarter in which such Restricted Payment is made, is less than the sum, without duplication, of:

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(i) Operating Surplus as of the end of the immediately preceding quarter; plus

(ii) 100% of the aggregate net cash proceeds and the Fair Market Value of property or securities other than cash received by the Partnership since the date of this Indenture as a contribution to its common equity capital or from the issue or sale of Equity Interests of the Partnership or from the issue or sale of convertible or exchangeable Disqualified Equity of the Partnership or convertible or exchangeable debt securities of the Partnership, in each case that have been converted into or exchanged for Equity Interests of the Partnership (other than Equity Interests and convertible or exchangeable Disqualified Equity or debt securities sold to a Subsidiary of the Partnership); plus

(iii) to the extent that any Restricted Investment that was made after the date of this Indenture is (i) sold for cash or otherwise cancelled, liquidated or repaid for cash, or (ii) made in an entity that subsequently becomes a Restricted Subsidiary of the Partnership, the initial amount of such Restricted Investment (or, if less, the amount of cash received upon repayment or sale); plus

(iv) to the extent that any Unrestricted Subsidiary of the Partnership designated as such after the date of this Indenture is redesignated as a Restricted Subsidiary after the date of this Indenture or is merged or consolidated with or into, or transfers or otherwise disposes of all or substantially all of its properties or assets or is liquidated into, the Partnership or a Restricted Subsidiary after the date of this Indenture, the lesser of (i) the Fair Market Value of the Partnership’s Restricted Investment in such Subsidiary (or of the properties or assets disposed of, as applicable) as of the date of such redesignation, merger, consolidation, transfer, disposition or liquidation or (ii) such Fair Market Value as of the date on which such Subsidiary was originally designated as an Unrestricted Subsidiary after the date of this Indenture; plus

(v) 100% of any dividends received in cash by the Partnership or a Restricted Subsidiary of the Partnership that is a Guarantor after the date of this Indenture from an Unrestricted Subsidiary of the Partnership, to the extent that such dividends were not otherwise included in the Operating Surplus of the Partnership for such period (Sections (A)(ii) through (A)(v) being referred to as “ Incremental Funds ”); minus

(vi) the aggregate amount of Incremental Funds previously expended pursuant to this Section 4.07(a)(1)(A) and Section 4.07(a)(1)(B) hereof; or

(B) if the Fixed Charge Coverage Ratio for the Partnership’s most recently ended four full fiscal quarters is less than 2.25 to 1.00, such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by the Partnership and its Restricted Subsidiaries (excluding Restricted Payments permitted by Sections 4.07(b)(2) through 4.07(b)(13)) during the quarter in which such Restricted Payment is made, is less than the sum, without duplication, of:

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(i) $100.0 million less the aggregate amount of all Restricted Payments made by the Partnership and its Restricted Subsidiaries pursuant to this Section 4.07(a)(1)(B)(i) during the period ending on the last day of the fiscal quarter immediately preceding the date of such Restricted Payment and beginning on the date of this Indenture; plus

(ii) Incremental Funds to the extent not previously expended pursuant to Section 4.07(a)(1)(A) hereof or this Section 4.07(a)(1)(B); or

(2) during the period beginning on the date of the Corporate Conversion and thereafter, if (1) the Fixed Charge Coverage Ratio for the Partnership’s most recently ended four full fiscal quarters is not less than 2.00 to 1.00; and (2) such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by the Partnership and its Restricted Subsidiaries (excluding Restricted Payments permitted by Sections 4.07(b)(2) through 4.07(b)(15)) is less than the sum, without duplication of:

(A) 50% of the Consolidated Net Income of the Partnership for the period (taken as one accounting period) from the beginning of the fiscal quarter in which the Corporate Conversion occurs to the end of the Partnership’s most recently ended fiscal quarter for which internal financial statements are available at the time of such Restricted Payment (or, if such Consolidated Net Income for such period is a deficit, less 100% of such deficit); plus

(B) 100% of the aggregate net cash proceeds and the Fair Market Value of property or securities other than cash received by the Partnership since the date of this Indenture as a contribution to its common equity capital or from the issue or sale of Equity Interests of the Partnership or from the issue or sale of convertible or exchangeable Disqualified Equity of the Partnership or convertible or exchangeable debt securities of the Partnership, in each case that have been converted into or exchanged for Equity Interests of the Partnership (other than Equity Interests and convertible or exchangeable Disqualified Equity or debt securities sold to a Subsidiary of the Partnership); plus

(i) to the extent that any Restricted Investment that was made after the date of this Indenture is (i) sold for cash or otherwise cancelled, liquidated or repaid for cash, or (ii) made in an entity that subsequently becomes a Restricted Subsidiary of the Partnership, the initial amount of such Restricted Investment (or, if less, the amount of cash received upon repayment or sale); plus

(ii) to the extent that any Unrestricted Subsidiary of the Partnership designated as such after the date of this Indenture is redesignated as a Restricted Subsidiary after the date of this Indenture or is merged or consolidated with or into, or transfers or otherwise disposes of all or substantially all of its properties or assets or is liquidated into, the Partnership or a Restricted Subsidiary after the date of this Indenture, the lesser of (i) the Fair Market Value of the Partnership’s Restricted Investment in such Subsidiary (or of the properties or assets disposed of, as applicable) as of the date of such redesignation, merger, consolidation, transfer, disposition or liquidation or (ii) such Fair Market Value as of the date on which such Subsidiary was originally designated as an Unrestricted Subsidiary after the date of this Indenture; plus

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(iii) 100% of any dividends received in cash by the Partnership or a Restricted Subsidiary of the Partnership that is a Guarantor after the date of this Indenture from an Unrestricted Subsidiary of the Partnership, to the extent that such dividends were not otherwise included in the Consolidated Net Income of the Partnership for such period;

(b) The provisions of Section 4.07(a) hereof will not prohibit:

(1) the payment of any dividend or distribution or redemption within 60 days after its date of declaration or notice, if at the date of declaration or notice, the payment would have complied with the provisions of this Indenture;

(2) the making of any Restricted Payment in exchange for, or out of or with the net cash proceeds of the substantially concurrent sale (other than to a Subsidiary of the Partnership) of, Equity Interests of the Partnership (other than Disqualified Equity) or from the substantially concurrent contribution of common equity capital to the Partnership; provided that the amount of any such net cash proceeds that are utilized for any such Restricted Payment will be excluded or deducted from the calculation of Incremental Funds, and Section 4.07(a)(2)(B) hereof;

(3) the purchase, redemption, defeasance or other acquisition or retirement for value of subordinated Indebtedness of the Partnership or any Guarantor or of any Equity Interests of in exchange for, or out of the net cash proceeds of, a substantially concurrent (a) capital contribution to the Partnership from any Person (other than a Restricted Subsidiary of the Partnership) or (b) sale (other than to a Restricted Subsidiary of the Partnership) of Equity Interests of the Partnership, with a sale being deemed substantially concurrent if such redemption, repurchase, retirement, defeasance or other acquisition occurs not more than 120 days after such sale; provided that the amount of any such net cash proceeds that are utilized for any such purchase, redemption, defeasance or other acquisition or retirement for value will be excluded or deducted from the calculation of Incremental Funds, Section 4.07(a)(2)(B) hereof;

(4) the payment of any dividend (or, in the case of any partnership or limited liability company, any similar distribution) by a Restricted Subsidiary of the Partnership to the holders of its Equity Interests on a pro rata basis or a basis more favorable to the Partnership and its Restricted Subsidiaries;

(5) the repurchase, redemption, defeasance or other acquisition or retirement for value of Indebtedness of the Partnership or any Guarantor that is contractually subordinated to the Notes or to any Note Guarantee (including the payment of any required premium and any fees and expenses incurred in connection with such repurchase, redemption, defeasance or other acquisition or retirement) with the net cash proceeds from a substantially concurrent incurrence of Permitted Refinancing Indebtedness;

(6) so long as no Default or Event of Default has occurred and is continuing, the purchase, redemption or other acquisition or retirement for value of any Equity Interests of the Partnership or any Restricted Subsidiary of the Partnership held by any current or former officer, director or employee of the General Partner, the Partnership or any of the Partnership’s Restricted Subsidiaries pursuant to any equity subscription agreement or plan, stock or unit option agreement, shareholders’ agreement or similar agreement or other employee benefit plan, or to satisfy obligations under any Equity Interests appreciation rights or option plan or similar arrangement; provided that the aggregate price paid for all such purchased, redeemed, acquired or retired Equity Interests may not exceed $7.5 million in any calendar year (with unused amounts in any calendar year being carried over to succeeding calendar years); provided further , that such amount in any calendar year may be increased by an amount not to exceed:

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(A) the cash proceeds received by the Partnership from the sale of Equity Interests of the Partnership to members of management, directors, managers or consultants of the General Partner, the Partnership or any of its Restricted Subsidiaries that occurs after the date of this Indenture to the extent the cash proceeds from the sale of such Equity Interests have not otherwise been applied to the making of Restricted Payments by virtue of Sections 4.07(a)(1), 4.07(a)(2) or 4.07(b)(2) hereof; plus

(B) the cash proceeds of key man life insurance policies received by the Partnership or its Restricted Subsidiaries after the date of this Indenture; and

and provided, further , cancellation of Indebtedness owing to the Partnership from any current or former officer, director or employee (or any permitted transferees thereof) of the General Partner, the Partnership or any of its Restricted Subsidiaries (or any direct or indirect parent company thereof), in connection with a repurchase, redemption or other acquisition or retirement for value of Equity Interests of the Partnership from such Persons will not be deemed to constitute a Restricted Payment for purposes of this covenant or any other provisions of this Indenture;

(7) the purchase, redemption or other acquisition or retirement for value of Equity Interests deemed to occur upon the exercise of unit options, warrants, incentives, rights to acquire Equity Interests or other convertible securities if such Equity Interests represent a portion of the exercise or exchange price thereof, and any purchase, redemption or other acquisition or retirement for value of Equity Interests made in lieu of withholding taxes in connection with any exercise or exchange of unit options, warrants, incentives or rights to acquire Equity Interests;

(8) so long as no Default or Event of Default has occurred and is continuing, the declaration and payment of regularly scheduled or accrued dividends to holders of any class or series of Disqualified Equity of the Partnership or any Preferred Stock of any Restricted Subsidiary of the Partnership issued on or after the date of this Indenture in accordance with Section 4.09;

(9) payments of cash, dividends, distributions, advances or other Restricted Payments by the Partnership or any of its Restricted Subsidiaries to allow the payment of cash in lieu of the issuance of fractional shares upon (i) the exercise of options or warrants or (ii) the conversion or exchange of Capital Stock of any such Person;

(10) any purchases, redemptions or other acquisitions or retirements for value of Equity Interests made in lieu of withholding taxes in connection with any exercise or exchange of warrants, options or rights to acquire Equity Interests;

(11) the purchase, redemption, defeasance or other acquisition or retirement for value of any subordinated Indebtedness pursuant to Sections Section 4.10 and 4.13; provided that prior to such purchase, redemption, defeasance or other acquisition or retirement for value the Partnership (or a third party to the extent permitted by this Indenture) shall have made a Change of Control Offer, Alternate Offer or Asset Sale Offer, as the case may be, with respect to the Notes and shall have repurchased all Notes properly tendered and not withdrawn in connection with such Change of Control, Alternate Offer or Asset Sale Offer;

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(12) in connection with an acquisition by the Partnership or any of its Restricted Subsidiaries, the return to the Partnership or any of its Restricted Subsidiaries of Equity Interests of the Partnership or its Restricted Subsidiaries constituting a portion of the purchase consideration in settlement of indemnification claims;

(13) Permitted Tax Distributions;

(14) from and after the consummation of a Corporate Conversion, Permitted Payments to Parent; and

(15) from and after the consummation of a Corporate Conversion, so long as no Default or Event of Default has occurred and is continuing, other Restricted Payments in an aggregate amount not to exceed $75.0 million since the date of the Corporate Conversion.

(c) The amount of all Restricted Payments (other than cash) will be the Fair Market Value on the date of the Restricted Payment of the asset(s) or securities proposed to be transferred or issued by the Partnership or such Restricted Subsidiary, as the case may be, pursuant to the Restricted Payment, except that the Fair Market Value of any non-cash dividend or distribution shall be determined on the date of declaration. The Fair Market Value of any assets or securities that are required to be valued by this covenant will be determined in the manner prescribed in the definition of that term. For the purposes of determining compliance with this covenant, in the event that a Restricted Payment meets the criteria of more than one of the categories of Restricted Payments described in Section 4.07(b)(1) through 4.07(b)(15) hereof, the Partnership will be permitted to classify (or reclassify in whole or in part in its sole discretion) such Restricted Payment in any manner that complies with this covenant.

Section 4.08 Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries.

(a) The Partnership will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create or permit to exist or become effective any consensual encumbrance or restriction on the ability of any Restricted Subsidiary to:

(1) pay dividends or make any other distributions on its Capital Stock to the Partnership or any of its Restricted Subsidiaries, or with respect to any other interest or participation in, or measured by, its profits, or pay any indebtedness owed to the Partnership or any of its Restricted Subsidiaries; provided that the priority that any series of Preferred Stock of a Restricted Subsidiary has in receiving dividends, distributions or liquidating distributions before dividends, distributions or liquidating distributions are paid in respect of common equity of such Restricted Subsidiary shall not constitute a restriction on the ability to make dividends or distributions on Capital Stock for purposes of this covenant;

(2) make loans or advances to the Partnership or any of its Restricted Subsidiaries; or

(3) sell, lease or transfer any of its properties or assets to the Partnership or any of its Restricted Subsidiaries.

(b) The restrictions in Section 4.08(a) hereof will not apply to encumbrances or restrictions existing under or by reason of:

(1) agreements as in effect on the date of this Indenture and any amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings of those agreements; provided that the amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings are not materially more restrictive, taken as a whole, with respect to such dividend, distribution and other payment restrictions than those contained in those agreements on the date of this Indenture;

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(2) this Indenture, the Notes and the Note Guarantees;

(3) agreements governing other Indebtedness or Disqualified Equity or Preferred Stock permitted to be incurred under Section 4.09 hereof and any amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings of those agreements; provided that the restrictions therein are either (a) not materially more restrictive, taken as a whole, than those contained in this Indenture, the Notes and the Note Guarantees or (b) not reasonably likely to have a material adverse effect on the ability of the Partnership to make required payments on the Notes;

(4) applicable law, rule, regulation or order;

(5) any instrument governing Indebtedness or Capital Stock of a Person acquired by the Partnership or any of its Restricted Subsidiaries as in effect at the time of such acquisition (except to the extent such Indebtedness or Capital Stock was incurred in connection with or in contemplation of such acquisition), which encumbrance or restriction is not applicable to any Person, or the properties or assets of any Person, other than the Person, or the property or assets of the Person, so acquired; provided that, in the case of Indebtedness, such Indebtedness was permitted by the terms of this Indenture to be incurred;

(6) customary non-assignment provisions in contracts and licenses entered into in the ordinary course of business;

(7) purchase money obligations for property acquired in the ordinary course of business and Capital Lease Obligations that impose restrictions on the property purchased or leased of the nature described in Section 4.08(a)(3) hereof;

(8) any agreement for the sale or other disposition of a Restricted Subsidiary that restricts distributions by that Restricted Subsidiary pending its sale or other disposition;

(9) Permitted Refinancing Indebtedness; provided that the restrictions contained in the agreements governing such Permitted Refinancing Indebtedness are not materially more restrictive, taken as a whole, than those contained in the agreements governing the Indebtedness being refinanced;

(10) Liens permitted to be incurred under the provisions of Section 4.12 that limit the right of the debtor to dispose of the assets subject to such Liens;

(11) any agreement or instrument relating to any property or assets acquired after the date of this Indenture, so long as such encumbrance or restriction relates only to the property or assets so acquired and is not and was not created in anticipation of such acquisition;

(12) encumbrances or restrictions applicable only to a Restricted Subsidiary that is not a Domestic Subsidiary;

(13) provisions limiting the disposition or distribution of assets or property in joint venture agreements, asset sale agreements, sale-leaseback agreements, stock sale agreements and other similar agreements (including agreements entered into in connection with a Restricted Investment), which limitation is applicable only to the assets that are the subject of such agreements; and

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(14) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary course of business.

Section 4.09 Incurrence of Indebtedness and Issuance of Disqualified Equity.

(a) The Partnership will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise, with respect to (collectively, “ incur ”) any Indebtedness (including Acquired Debt), and the Partnership will not issue any Disqualified Equity and will not permit any of its Restricted Subsidiaries to issue any shares of Preferred Stock; provided , however , that the Partnership and any Restricted Subsidiary may incur Indebtedness (including Acquired Debt), the Partnership may issue Disqualified Equity, and the Restricted Subsidiaries of the Partnership may issue Preferred Stock if the Fixed Charge Coverage Ratio for the Partnership’s most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date on which such additional Indebtedness is incurred or such Disqualified Equity or such Preferred Stock is issued, as the case may be, would have been at least 2.0 to 1.0, determined on a pro forma basis (including a pro forma application of the net proceeds therefrom), as if the additional Indebtedness had been incurred or the Disqualified Equity or such Preferred Stock had been issued, as the case may be, at the beginning of such four-quarter period.

(b) The restrictions in Section 4.09(a) will not prohibit the incurrence of any of the following items of Indebtedness (collectively, “ Permitted Debt ”):

(1) the incurrence by the Partnership and any Restricted Subsidiary of revolving credit Indebtedness and letters of credit under Credit Facilities in an aggregate principal amount at any one time outstanding under this Section 4.09(b)(1) (with letters of credit being deemed to have a principal amount equal to the maximum potential liability of the Partnership and its Restricted Subsidiaries thereunder) not to exceed the greater of (a) $300.0 million and (b)30.0% of the Partnership’s Consolidated Net Tangible Assets; provided that (I) in the event the Partnership or any Restricted Subsidiary consummates an Asset Sale after the date of the indenture, subclause (a) of this Section 4.09(b)(1) shall be reduced by 30.0% of the Fair Market Value of the Net Proceeds and any non-cash consideration (other than any non-cash consideration described in Section 4.10(a)(2)(C) hereof) received from such Asset Sale (provided, that in the event the Partnership or any Restricted Subsidiary uses the Net Proceeds or non-cash consideration received from an Asset Sale for any of the uses set forth in Sections Section 4.10(b)(2) through Section 4.10(b)(4) hereof, subclause (a) of this Section 4.09(b)(1) hereof shall be increased by 30.0% of the purchase price thereof or capital expenditure therefor, as applicable, up to a maximum amount of $300.0 million) and (II) the foregoing reduction to subclause (a) of this Section 4.09(b)(1) hereof shall only apply to the amount by which the aggregate Fair Market Value of the Net Proceeds and non-cash consideration received from Asset Sales consummated since the date of the indenture exceeds $20.0 million;

(2) the incurrence by the Partnership and its Restricted Subsidiaries of the Existing Indebtedness;

(3) the incurrence by the Partnership and the Guarantors of Indebtedness represented by the Notes and the related Note Guarantees to be issued on the date of this Indenture;

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(4) the incurrence by the Partnership or any of its Restricted Subsidiaries of Indebtedness represented by Capital Lease Obligations, mortgage financings or purchase money obligations, in each case, incurred for the purpose of financing all or any part of the purchase price or cost of design, construction, installation or improvement of property, plant or equipment used in the business of the Partnership or any of its Restricted Subsidiaries, in an aggregate principal amount, including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this Section 4.09(b)(4); provided that after giving effect to such incurrence the aggregate principal amount of all Indebtedness incurred pursuant to this Section 4.09(b)(4) and then outstanding does not exceed the greater of (a) $35.0 million and (b) 3.5% of the Partnership’s Consolidated Net Tangible Assets;

(5) the incurrence by the Partnership or any of its Restricted Subsidiaries of Permitted Refinancing Indebtedness in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge any Indebtedness (other than intercompany Indebtedness) that was permitted by this Indenture to be incurred under Section 4.09(a) or Sections (2), 4.09(b)(3), 4.09(b)(4), 4.09(b)(5) or 4.09(b)(12);

(6) the incurrence by the Partnership or any of its Restricted Subsidiaries of intercompany Indebtedness between or among the Partnership and any of its Restricted Subsidiaries; provided , however , that:

(A) if the Partnership or any Guarantor is the obligor on such Indebtedness and the payee is not the Partnership or a Guarantor, such Indebtedness must be unsecured and expressly subordinated to the prior payment in full in cash of all Obligations then due with respect to the Notes, in the case of the Partnership, or the Note Guarantee, in the case of a Guarantor; and

(B) (i) any subsequent issuance or transfer of Equity Interests that results in any such Indebtedness being held by a Person other than the Partnership or a Restricted Subsidiary of the Partnership and (ii) any sale or other transfer of any such Indebtedness to a Person that is not either the Partnership or a Restricted Subsidiary of the Partnership,

will be deemed, in each case, to constitute an incurrence of such Indebtedness by the Partnership or such Restricted Subsidiary, as the case may be, that was not permitted by this Section 4.09(b)(6);

(7) the issuance by any of the Partnership’s Restricted Subsidiaries to the Partnership or to any of its Restricted Subsidiaries of shares of Preferred Stock; provided , however , that:

(A) any subsequent issuance or transfer of Equity Interests that results in any such Preferred Stock being held by a Person other than the Partnership or a Restricted Subsidiary of the Partnership; and

(B) any sale or other transfer of any such Preferred Stock to a Person that is not either the Partnership or a Restricted Subsidiary of the Partnership,

will be deemed, in each case, to constitute an issuance of such Preferred Stock by such Restricted Subsidiary that was not permitted by this Section 4.09(b)(7);

(8) the incurrence by the Partnership or any of its Restricted Subsidiaries of Hedging Obligations in the ordinary course of business;

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(9) the guarantee by the Partnership or any of the Guarantors of Indebtedness of the Partnership or a Restricted Subsidiary of the Partnership to the extent that the guaranteed Indebtedness was permitted to be incurred by another provision of this covenant; provided that if the Indebtedness being guaranteed is subordinated to or pari passu with the Notes, then the guarantee must be subordinated or pari passu , as applicable, to the same extent as the Indebtedness guaranteed;

(10) the incurrence by the Partnership or any of its Restricted Subsidiaries of Acquired Debt in connection with a merger or consolidation satisfying either one of the financial tests set forth in Section 5.01(a)(4);

(11) the incurrence by the Partnership or any of its Restricted Subsidiaries of Indebtedness in respect of workers’ compensation claims, self-insurance obligations, bankers’ acceptances, performance and surety bonds in the ordinary course of business;

(12) any obligation arising from agreements of the Partnership or any of its Restricted Subsidiaries Parent providing for indemnification, adjustment of purchase price, earn outs or similar obligations, in each case, incurred or assumed in connection with the disposition or acquisition of any business, assets or Capital Stock of a Restricted Subsidiary in a transaction permitted by this Indenture; provided that such obligation is not reflected as a liability on the face of the balance sheet of the Partnership or any Restricted Subsidiary;

(13) the incurrence by the Partnership or any of its Restricted Subsidiaries of Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument inadvertently drawn against insufficient funds, so long as such Indebtedness is covered within five Business Days; and

(14) the incurrence by the Partnership or any of its Restricted Subsidiaries of additional Indebtedness in an aggregate principal amount (or accreted value, as applicable) at any time outstanding, including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this Section 4.09(b)(14), not to exceed the greater of (a) $50.0 million and (b) 5.0% of the Partnership’s Consolidated Net Tangible Assets.

(c) The Partnership will not incur, and will not permit any Guarantor to incur, any Indebtedness (including Permitted Debt) that is contractually subordinated in right of payment to any other Indebtedness of the Partnership or such Guarantor unless such Indebtedness is also contractually subordinated in right of payment to the Notes and the applicable Note Guarantee on substantially identical terms; provided , however , that no Indebtedness will be deemed to be contractually subordinated in right of payment to any other Indebtedness of the Partnership solely by virtue of being unsecured or by virtue of being secured on a junior priority basis.

(d) For purposes of determining compliance with this Section 4.09, in the event that an item of Indebtedness meets the criteria of more than one of the categories of Permitted Debt described in Sections 4.09(b)(2) through 4.09(b)(14), or is entitled to be incurred pursuant to Section 4.09(a) hereof, the Partnership will be permitted to classify such item of Indebtedness on the date of its incurrence, or later reclassify all or a portion of such item of Indebtedness, in any manner that complies with this covenant. Indebtedness under the Credit Agreement outstanding on the date on which Notes are first issued and authenticated under this Indenture will be deemed to have been incurred on such date in reliance on the exception provided by 4.08(b)(1) of the definition of Permitted Debt and any Indebtedness incurred thereunder may not be reclassified. The accrual of interest or Preferred Stock or Disqualified Equity

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dividends, the accretion or amortization of original issue discount, the payment of interest on any Indebtedness in the form of additional Indebtedness with the same terms, the reclassification of Preferred Stock or Disqualified Equity as Indebtedness due to a change in accounting principles, and the payment of dividends on Preferred Stock or Disqualified Equity in the form of additional shares or units of the same class of Preferred Stock or Disqualified Equity will not be deemed to be an incurrence of Indebtedness or an issuance of Preferred Stock or Disqualified Equity for purposes of this covenant; provided , in each such case, that the amount thereof is included in Fixed Charges of the Partnership as accrued to the extent required by the definition of such term. For purposes of determining compliance with any U.S. dollar-denominated restriction on the incurrence of Indebtedness, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be utilized, calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was incurred. Notwithstanding any other provision of this covenant, the maximum amount of Indebtedness that the Partnership or any Restricted Subsidiary may incur pursuant to this covenant shall not be deemed to be exceeded solely as a result of fluctuations in exchange rates or currency values.

The amount of any Indebtedness outstanding as of any date will be:

(1) the accreted value of the Indebtedness, in the case of any Indebtedness issued with original issue discount;

(2) the principal amount of the Indebtedness, in the case of any other Indebtedness; and

(3) in respect of Indebtedness of another Person secured by a Lien on the assets of the specified Person, the lesser of:

(A) the Fair Market Value of such assets at the date of determination; and

(B) the amount of the Indebtedness of the other Person.

Section 4.10 Asset Sales.

(a) The Partnership will not, and will not permit any of its Restricted Subsidiaries to, consummate an Asset Sale unless:

(1) the Partnership or any of its Restricted Subsidiaries receives consideration at the time of the Asset Sale at least equal to the Fair Market Value (measured as of the date of the definitive agreement with respect to such Asset Sale) of the assets or Equity Interests issued or sold or otherwise disposed of; and

(2) at least 75% of the aggregate consideration received by the Partnership or any of its Restricted Subsidiaries in the Asset Sale and all other Asset Sales since the date of this Indenture is in the form of cash or Cash Equivalents. For purposes of this provision, each of the following will be deemed to be cash:

(A) any liabilities, as shown on the Partnership’s most recent consolidated balance sheet, of the Partnership or any Restricted Subsidiary (other than contingent liabilities and liabilities that are by their terms subordinated to the Notes or any Note Guarantee) that are assumed, forgiven or otherwise extinguished by the transferee of any such assets pursuant to a novation, indemnity or other agreement that releases the Partnership or such Restricted Subsidiary from or indemnifies against further liability;

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(B) any securities, notes or other obligations received by the Partnership or any Restricted Subsidiary from such transferee that are within 180 days after the Asset Sale (subject to ordinary settlement periods) converted by the Partnership or such Restricted Subsidiary into cash or Cash Equivalents, to the extent of the cash or Cash Equivalents received in that conversion; and

(C) any Capital Stock or assets of the kind referred to in Sections 4.10(b)(2) or 4.10(b)(4); and

(D) any Designated Non-cash Consideration received by the Partnership or any of its Restricted Subsidiaries in such Asset Sale having an aggregate Fair Market Value (as determined in good faith by the Partnership), taken together with all other Designated Non-cash Consideration received pursuant to this Section 4.10(a)(2)(D), not to exceed 5.0% of the Partnership’s Consolidated Net Tangible Assets (with the Fair Market Value of each item of Designated Non-cash Consideration being measured at the time received and without giving effect to subsequent changes in value).

(b) Within 365 days after the receipt of any Net Proceeds from an Asset Sale (or within 180 days after such 365-day period in the event the Partnership or any Restricted Subsidiary enters into a binding commitment with respect to such application), the Partnership or one or more of its Restricted Subsidiaries may apply an amount equal to the amount of such Net Proceeds:

(1) to repay senior Indebtedness of the Partnership or of any Guarantor;

(2) to acquire all or substantially all of the properties or assets of, or any Capital Stock of, another Permitted Business, if, after giving effect to any such acquisition of Capital Stock, the Permitted Business is or becomes a Restricted Subsidiary of the Partnership;

(3) to make a capital expenditure; or

(4) to acquire other assets that are not classified as current assets under GAAP and that are used or useful in a Permitted Business.

Pending the final application of any Net Proceeds, the Partnership or any of its Restricted Subsidiaries may temporarily reduce revolving credit borrowings or otherwise invest the Net Proceeds in any manner that is not prohibited by this Indenture.

If the Net Proceeds exceed the aggregate amount within the applicable time period, such excess amount applied or invested as provided in this Section (b) will constitute “ Excess Proceeds .” When the aggregate amount of Excess Proceeds exceeds $50.0 million, within five Business Days thereof, the Partnership will make an offer (an “ Asset Sale Offer ”) to all Holders of Notes then outstanding and all holders of other Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in this Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets to purchase, prepay or redeem the maximum principal amount of Notes and such other pari passu Indebtedness (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in connection therewith) that may be purchased, prepaid or redeemed out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to, but excluding, the date of purchase, prepayment or redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date, and will be payable in cash. If any Excess Proceeds remain after consummation of an Asset Sale Offer, the Partnership may use those Excess Proceeds for any purpose not otherwise

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prohibited by this Indenture. If the aggregate principal amount of Notes and other pari passu Indebtedness tendered in (or required to be prepaid or redeemed in connection with) such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee will select the Notes and the Partnership will select such other pari passu Indebtedness to be purchased on a pro rata basis (except that any Notes represented by a Note in global form will be selected by such method as DTC or its nominee or successor may require or, where such nominee or successor is the Trustee, a method that most nearly approximates pro rata selection as the Trustee deems fair and appropriate unless otherwise required by law), based on the amounts tendered or required to be prepaid or redeemed (with such adjustments as may be deemed appropriate by the Partnership so that only Notes in minimum denominations of $2,000, or an integral multiple of $1,000 in excess thereof, will be purchased). Upon completion of each Asset Sale Offer, the amount of Excess Proceeds will be reset at zero.

(c) The Partnership will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with each repurchase of Notes pursuant to an Asset Sale Offer. To the extent that the provisions of any securities laws or regulations conflict with Sections 3.09 hereof or this Section 4.10, the Partnership will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under Section 3.09 hereof or this Section Section 4.10 by virtue of such compliance.

Section 4.11 Transactions with Affiliates.

(a) The Partnership will not, and will not permit any of its Restricted Subsidiaries to, make any payment to or sell, lease, transfer or otherwise dispose of any of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction, contract, agreement, understanding, loan, advance or guarantee with, or for the benefit of, any Affiliate of the Partnership (each, together with any series of related transactions, an “ Affiliate Transaction ”) involving aggregate payments or consideration in excess of $5.0 million, unless:

(1) the Affiliate Transaction is on terms that are no less favorable to the Partnership or the relevant Restricted Subsidiary than those that would have been obtained in a comparable transaction by the Partnership or such Restricted Subsidiary with an unrelated Person or, if in the good faith judgment of the Board of Directors of the General Partner, no comparable transaction is available with which to compare such Affiliate Transaction, such Affiliate Transaction is otherwise fair to the Partnership or the relevant Restricted Subsidiary from a financial point of view; and

(2) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of $25.0 million, the Partnership delivers to the Trustee a resolution of the Board of Directors of the General Partner set forth in an Officers’ Certificate certifying that such Affiliate Transaction complies with this covenant and that such Affiliate Transaction has been approved by a majority of the disinterested members of the Board of Directors of the General Partner.

(b) The following items will not be deemed to be Affiliate Transactions and, therefore, will not be subject to the provisions of Section (a) hereof:

(1) any employment agreement, employee benefit plan, officer or director indemnification agreement, compensation or severance agreement or any similar arrangement entered into by the General Partner, Partnership or any of its Restricted Subsidiaries or any direct or indirect parent of the Partnership in the ordinary course of business and payments pursuant thereto;

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(2) transactions between or among the Partnership and any of its Restricted Subsidiaries;

(3) transactions with a Person (other than an Unrestricted Subsidiary of the Partnership) that is an Affiliate of the Partnership solely because the Partnership owns, directly or through a Restricted Subsidiary, an Equity Interest in, or controls, such Person;

(4) payment of reasonable and customary fees and reimbursements of expenses (pursuant to indemnity arrangements or otherwise) of officers, directors, employees or consultants of the General Partner, the Partnership or any of its Restricted Subsidiaries or any direct or indirect parent of the Partnership;

(5) any issuance of Equity Interests (other than Disqualified Equity) of the Partnership to Affiliates of the Partnership;

(6) Restricted Payments (or any transactions specifically excluded from the definition of the term “Restricted Payments”) that do not violate the provisions Section 4.07 hereof and Permitted Investments;

(7) transactions between the Partnership or any of its Restricted Subsidiaries and any Person that would not otherwise constitute an Affiliate Transaction except for the fact that one director of such other Person is also a director of the General Partner or such Restricted Subsidiary, as applicable; provided that such director abstains from voting as a director of the General Partner or such Restricted Subsidiary, as applicable, on any matter involving such other Person;

(8) transactions with customers, clients, suppliers, joint venture partners or purchasers or sellers of goods or services (including pursuant to joint venture agreements) or lessors or lessees of property in the ordinary course of business on terms, taken as a whole, that are no less favorable in any material respect than would have been obtained at such time from a Person that is not an Affiliate of the Partnership, as reasonably determined by the Partnership;

(9) payments or transactions arising under or contemplated by any contract, agreement, instrument or arrangement in effect on the date of this Indenture, including the Partnership Agreement, as amended, modified or replaced from time to time so long as the amended, modified or new agreements, taken as a whole at the time such amendments, modifications or replacements are executed, are not materially less favorable to the Partnership and its Restricted Subsidiaries, taken as a whole, than those in effect on the date of this Indenture, as reasonably determined by the Partnership;

(10) any transaction with respect to which the Partnership has obtained an opinion from an independent accounting, appraisal or investment banking firm of national standing to the effect that such transaction is fair from a financial point of view to the Partnership and its Restricted Subsidiaries, as applicable;

(11) any Affiliate Transaction with a Person in its capacity as a holder of Indebtedness or Capital Stock of the Partnership or any Restricted Subsidiary of the Partnership; provided that such Person is treated no more favorably than the other holders of Indebtedness or Capital Stock of the Partnership or such Restricted Subsidiary, as reasonably determined by the Board of Directors of the General Partner;

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(12) loans or advances to employees in the ordinary course of business not to exceed $2.5 million in the aggregate at any one time outstanding; and

(13) transactions permitted by, or complying with, the provisions of Section 5.01 hereof solely for the purpose of consummating a Corporate Conversion.

Section 4.12 Liens.

The Partnership will not and will not permit any of its Restricted Subsidiaries to, create, incur, assume or otherwise cause to exist or become effective any Lien of any kind (other than Permitted Liens) securing Indebtedness upon any of their property or assets, now owned or hereafter acquired, unless all payments due under this Indenture and the Notes are secured on an equal and ratable basis with the obligations so secured until such time as such obligations are no longer secured by a Lien. Any Lien created for the benefit of the Holders of the Notes pursuant to Section 4.09 hereof shall provide by its terms that such Lien shall be automatically and unconditionally released and discharged upon the release and discharge of the initial Lien.

Section 4.13 Offer to Repurchase Upon Change of Control.

(a) Upon the occurrence of a Change of Control, the Partnership will make an offer to each Holder of Notes to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes pursuant to the offer described below (the “ Change of Control Offer ”) on the terms set forth in this Indenture. In the Change of Control Offer, the Partnership will offer a payment in cash (the “ Change of Control Payment ”) equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to, but excluding, the date of purchase (the “ Change of Control Payment Date ”), subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date. Within 30 days following any Change of Control, the Partnership will send a notice to each holder, with a copy to the Trustee, describing the transaction or transactions that constitute the Change of Control and offering to repurchase Notes on the Change of Control Payment Date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is sent, pursuant to the procedures required by this Indenture and described in such notice. The Partnership will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control provisions of this Indenture, the Partnership will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control provisions of this Indenture by virtue of such compliance.

(b) Promptly following the expiration of the Change of Control Offer, the Partnership shall, to the extent lawful, accept for payment all Notes or portions thereof (in minimum denominations of $2,000 and in integral multiples of $1,000 in excess thereof) properly tendered (and not validly withdrawn) pursuant to the Change of Control Offer. Promptly thereafter on the Change of Control Payment Date the Partnership shall:

(1) deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

(2) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Partnership.

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The paying agent will promptly mail to each holder of Notes properly tendered the Change of Control Payment for such Notes (or, to the extent the Notes are in global form, make such payment through the facilities of DTC), and the Trustee will promptly authenticate and mail (or cause to be transferred by book entry) to each holder a new note equal in principal amount to any unpurchased portion of the Notes surrendered; provided that each new note will be in a principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. The Partnership will publicly announce the results of the Change of Control Offer on or as soon as practicable after the Change of Control Payment Date.

(c) Notwithstanding anything to the contrary in this Section 4.13, the Partnership will not be required to make a Change of Control Offer upon a Change of Control if (1) a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Indenture applicable to a Change of Control Offer made by the Partnership and purchases all Notes properly tendered and not withdrawn under the Change of Control Offer, (2) notice of redemption has been given pursuant to this Indenture as described in Section 3.07 hereof unless and until there is a default in payment of the applicable redemption price or (3) in connection with, or in contemplation of, any Change of Control, the Partnership has made an offer to purchase (an “ Alternate Offer ”) any and all Notes properly tendered at a cash price equal to or higher than the Change of Control Payment and has purchased all such Notes properly tendered in accordance with the terms of such Alternate Offer. Notwithstanding anything to the contrary contained in this Indenture, a Change of Control Offer may be made in advance of a Change of Control, conditioned upon the consummation of such Change of Control, if a definitive agreement is in place for the Change of Control at the time the Change of Control Offer is made. The closing date of any such Change of Control Offer made in advance of a Change of Control may be changed to conform to the actual closing date of the Change of Control, provided that such closing date is not earlier than 30 days nor later than 60 days from the date the Change of Control Offer notice is sent as described in Section 4.13(a) hereof.

(d) In the event that Holders of not less than 90% of the aggregate principal amount of the outstanding Notes accept a Change of Control Offer or Alternate Offer and the Partnership purchases all of the Notes held by such Holders, the Partnership will have the right, upon not less than 15 nor more than 60 days’ prior notice, given not more than 30 days following the purchase pursuant to the Change of Control Offer or Alternate Offer described above, to redeem all of the Notes that remain outstanding following such purchase at a redemption price equal to the Change of Control Payment or Alternate Offer price, as applicable, plus, to the extent not included in the Change of Control Payment or Alternate Offer price, as applicable, accrued and unpaid interest thereon to, but excluding, the redemption date (subject to the right of the Holders of Notes on the relevant record date to receive interest due on an interest payment date that is on or prior to the redemption date).

Section 4.14 Additional Note Guarantees.

If, after the date of this Indenture, any Restricted Subsidiary of the Partnership that is not already a Guarantor guarantees any Indebtedness of the Partnership or any Guarantor under a Credit Facility, or any Domestic Subsidiary, if not then a Guarantor, incurs any Indebtedness under any Credit Facility, then in either case that Subsidiary will become a Guarantor by executing a supplemental indenture substantially in the form of Exhibit D hereto and delivering it to the Trustee within 30 days of the date on which it guaranteed or incurred such Indebtedness, as the case may be.

Section 4.15 Designation of Restricted and Unrestricted Subsidiaries.

(a) The Board of Directors of the General Partner may designate any Restricted Subsidiary to be an Unrestricted Subsidiary if that designation would not cause a Default. If a Restricted Subsidiary is designated as an Unrestricted Subsidiary, the aggregate Fair Market Value of all outstanding Investments

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owned by the Partnership and its Restricted Subsidiaries in the Subsidiary designated as an Unrestricted Subsidiary will be deemed to be either an Investment made as of the time of the designation and will reduce the amount available for Restricted Payments under Section 4.07 hereof or a Permitted Investment under one or more clauses of the definition of Permitted Investments, as determined by the Partnership. That designation will only be permitted if the Investment would be permitted at that time and if the Restricted Subsidiary otherwise meets the definition of an Unrestricted Subsidiary.

(b) Any designation of a Subsidiary of the Partnership as an Unrestricted Subsidiary will be evidenced to the Trustee by filing with the Trustee a certified copy of a resolution of the Board of Directors of the General Partner giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the preceding conditions and was permitted by Section 4.07 hereof. If, at any time, any Unrestricted Subsidiary would fail to meet the preceding requirements as an Unrestricted Subsidiary, it will thereafter cease to be an Unrestricted Subsidiary for purposes of this Indenture and any Indebtedness of such Subsidiary will be deemed to be incurred by a Restricted Subsidiary of the Partnership as of such date and, if such Indebtedness is not permitted to be incurred as of such date under Section 4.09 hereof, the Partnership will be in default of such covenant. The Board of Directors of the General Partner may at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary of the Partnership; provided that such designation will be deemed to be an incurrence of Indebtedness by a Restricted Subsidiary of the Partnership of any outstanding Indebtedness of such Unrestricted Subsidiary, and such designation will only be permitted if (1) such Indebtedness is permitted under Section 4.09 hereof, calculated on a pro forma basis as if such designation had occurred at the beginning of the applicable reference period; and (2) no Default or Event of Default would be in existence following such designation.

Section 4.16 Covenant Suspension.

(a) Notwithstanding any provision of this Indenture or of the Notes to the contrary, if on any date following the date of this Indenture, (1) the Notes receive an Investment Grade rating from both Ratings Agencies; and (2) no Default or Event of Default shall have occurred and be continuing (collectively, a “ Covenant Suspension Event ” and the date thereof being referred to as the “ Suspension Date ”), then, beginning on the Suspension Date and subject to the provisions of Section (b), Sections 4.07, 4.08, 4.09, Section 4.10, 4.11, 4.15, and 5.01(a)(4) hereof will be suspended.

(b) During any period that the foregoing covenants have been suspended, the Board of Directors of the General Partner may not designate any of its Subsidiaries as Unrestricted Subsidiaries pursuant to Section 4.15 hereof.

(c) Notwithstanding the foregoing, if on any subsequent date (the “ Reinstatement Date ”), the Notes cease to maintain an Investment Grade rating from both Ratings Agencies (in each case, or the equivalent), Sections 4.07, 4.08, 4.09, Section 4.10, 4.11, 4.15, and 5.01(a)(4) hereof will be reinstituted as of and from the date of such rating decline. Calculations under the reinstated Section Section 4.07 hereof will be made as if Section Section 4.07 hereof had been in effect since the date of this Indenture except that no default will be deemed to have occurred solely by reason of a Restricted Payment made while that covenant was suspended. Furthermore, all Indebtedness incurred, or Disqualified Equity or Preferred Stock issued, during the period in which Sections 4.07, 4.08, 4.09, Section 4.10, 4.11, 4.15, and 5.01(a)(4) hereof were suspended will be deemed to have been incurred or issued pursuant to Section 4.09(b)(2) hereof.

(d) In addition, for purposes of Section 4.11 hereof, all agreements and arrangements entered into by the Partnership or any Restricted Subsidiary with an Affiliate of the Parent during the period the foregoing covenants were suspended will be deemed to have been entered into prior to the date of this Indenture and permitted by Section (9) hereof, and for purposes of Section Section 4.08 hereof, all contracts entered into during period that Section 4.08 hereof was suspended that contain any of the restrictions contemplated by Section 4.08 hereof will be deemed to have been existing on the date of this Indenture.

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(e) The Partnership shall deliver to the Trustee an Officers’ Certificate notifying the Trustee of a Covenant Suspension Event, Suspension Date or Reinstatement Date and identifying the suspended covenants. The Trustee shall have no duty to (i) monitor the ratings of the Notes, (ii) determine whether a Covenant Suspension Event, Suspension Date or Reversion Date has occurred, (iii) notify Holders of the Notes of any of the foregoing or (iv) determine the consequences thereof, but may provide a copy of such Officers’ Certificate to any Holder of the Notes upon request.

ARTICLE 5

SUCCESSORS

Section 5.01 Merger, Consolidation or Sale of Assets.

(a) The Partnership will not, directly or indirectly: (1) consolidate or merge with or into another Person (whether or not the Partnership is the surviving entity), or (2) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Partnership and its Restricted Subsidiaries taken as a whole, in one or more related transactions, to another Person, unless:

(1) either: (a) the Partnership is the surviving Person; or (b) the Person formed by or surviving any such consolidation or merger (if other than the Partnership) or to which such sale, assignment, transfer, conveyance or other disposition has been made is a Person organized or existing under the laws of the United States, any state of the United States or the District of Columbia;

(2) the Person formed by or surviving any such consolidation or merger (if other than the Partnership) or the Person to which such sale, assignment, transfer, conveyance or other disposition has been made assumes all the obligations of the Partnership under the Notes and this Indenture pursuant to a supplemental indenture reasonably satisfactory to the Trustee;

(3) immediately after such transaction, no Default or Event of Default exists;

(4) the Partnership or the Person formed by or surviving any such consolidation or merger (if other than the Partnership), or to which such sale, assignment, transfer, conveyance or other disposition has been made would, on the date of such transaction after giving pro forma effect thereto and any related financing transactions as if the same had occurred at the beginning of the applicable four-quarter period (a) be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.09(a) or (b) have had a Fixed Charge Coverage Ratio equal to or greater than the actual Fixed Charge Coverage Ratio for the Partnership for such four-quarter period; and

(5) the Partnership or the Person formed by or surviving any such consolidation or merger (if other than the Partnership), or the Person to which such sale, assignment, transfer, conveyance or other disposition has been made will have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, merger or other disposition and such supplemental indenture, if any, comply with this Indenture.

(b) Section 5.01(a) will not apply to any sale, assignment, transfer, conveyance, lease or other disposition of assets between or among the Partnership and its Restricted Subsidiaries. Section 5.01(a)(3) and 5.01(a)(4) will not apply to (1) any merger or consolidation of the Partnership with or into one of its

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Restricted Subsidiaries for any purpose, (2) any merger or consolidation of the General Partner with or into the Partnership for any purpose or (3) with or into an Affiliate solely for the purpose of reorganizing the Partnership in another jurisdiction. In addition, no provision of the above covenant shall prohibit a Corporate Conversion or any transaction related thereto.

(c) Notwithstanding the restrictions in Section 5.01(a), the Partnership is permitted to reorganize as any other form of entity in accordance with the procedures established herein, provided that:

(1) the reorganization involves the conversion (by merger, sale, legal conversion, contribution or exchange of assets or otherwise) of the Partnership into a form of entity other than a limited partnership formed under Delaware law;

(2) the entity so formed by or resulting from such reorganization is an entity organized or existing under the laws of the United States, any state thereof or the District of Columbia;

(3) the entity so formed by or resulting from such reorganization assumes all the obligations of Partnership under the Notes and this Indenture in accordance with the procedures established herein;

(4) immediately after such reorganization no Default or Event of Default exists; and

(5) such reorganization is not materially adverse to the Holders or Beneficial Owners of the Notes (for purposes of this Section 5.01(c)(5) a reorganization will not be considered materially adverse to the Holders or Beneficial Owners of the Notes solely because the successor or survivor of such reorganization (a) is subject to federal or state income taxation as an entity or (b) is considered to be an “includible corporation” of an affiliated group of corporations within the meaning of Section 1504(b) of the Code or any similar state or local law).

Section 5.02 Successor Person Substituted.

Upon any consolidation or merger or any sale, assignment, transfer, conveyance, lease or other disposition of all or substantially all of the properties or assets of the Partnership in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof, where the Partnership is not the surviving entity, the successor Person formed by such consolidation or into or with which the Partnership is merged or to which such sale, assignment, transfer, lease, conveyance or other disposition is made shall succeed to, and be substituted for (so that from and after the date of such consolidation, merger, sale, assignment, transfer, conveyance, lease or other disposition, the provisions of this Indenture referring to the “Partnership” shall refer instead to the successor Person and not to the Partnership), and may exercise every right and power of the Partnership under this Indenture with the same effect as if such successor Person had been named as the Partnership herein; provided, however , that the predecessor Partnership shall not be relieved from the obligation to pay the principal of, premium, if any, on, and interest, if any, on, the Notes except in the case of a sale of all of the Partnership’s assets in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof.

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ARTICLE 6

DEFAULTS AND REMEDIES

Section 6.01 Events of Default.

(a) Each of the following is an “ Event of Default ”:

(1) default for 30 days in the payment when due of interest, if any, on the Notes;

(2) default in the payment when due (at maturity, upon redemption or otherwise) of the principal of, or premium, if any, on the Notes;

(3) failure by the Partnership or any of its Restricted Subsidiaries to comply with the provisions of Sections 4.10, 4.13 or 5.01 hereof;

(4) failure by the Partnership or any of its Restricted Subsidiaries for 60 days after written notice to the Partnership by the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding voting as a single class to comply with any of the agreements in this Indenture;

(5) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Partnership or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Partnership or any of its Restricted Subsidiaries), whether such Indebtedness or Guarantee now exists, or is created after the date of this Indenture, if that default:

(A) is caused by a failure to pay principal of, premium, if any, on, or interest, if any, on such Indebtedness prior to the expiration of the grace period provided in such Indebtedness on the date of such default (a “ Payment Default ”); or

(B) results in the acceleration of such Indebtedness prior to its Stated Maturity,

and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under which there has been a Payment Default or the maturity of which has been so accelerated, aggregates $50.0 million or more;

(6) failure by the Partnership or any of its Restricted Subsidiaries to pay final judgments entered by a court or courts of competent jurisdiction aggregating in excess of $50.0 million, which judgments are not paid, discharged or stayed, for a period of 60 days;

(7) except as permitted by this Indenture, any Note Guarantee is held in any judicial proceeding to be unenforceable or invalid or ceases for any reason to be in full force and effect, or any Guarantor, or any Person acting on behalf of any Guarantor, denies or disaffirms its obligations under its Note Guarantee; and

(8) the Partnership or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary pursuant to or within the meaning of Bankruptcy Law:

(A) commences a voluntary case,

(B) consents to the entry of an order for relief against it in an involuntary case,

(C) consents to the appointment of a custodian of it or for all or substantially all of its property,

(D) makes a general assignment for the benefit of its creditors, or

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(E) admits in writing it generally is not paying its debts as they become due; or

(9) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(A) is for relief against the Partnership or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary in an involuntary case;

(B) appoints a custodian of the Partnership or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary or for all or substantially all of the property of the Partnership or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary; or

(C) orders the liquidation of the Partnership or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary;

and the order or decree remains unstayed and in effect for 60 consecutive days.

Section 6.02 Acceleration.

(a) In the case of an Event of Default specified in Sections 6.01(a)(8) and 6.01(a)(9) hereof, with respect to the Partnership, any Restricted Subsidiary of the Partnership that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately. Upon any declaration, the Notes shall become due and payable immediately.

(b) Subject to Section 7.01 hereof, in case an Event of Default occurs and is continuing, the Trustee will be under no obligation to exercise any of the rights or powers under this Indenture at the request or direction of any Holders of the Notes unless such Holders of the Notes have offered to the Trustee indemnity or security satisfactory to the Trustee against any loss, liability or expense.

Section 6.03 Other Remedies.

If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy to collect the payment of principal of, premium, if any, on, or interest, if any, on the Notes or to enforce the performance of any provision of the Notes or this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder of a Note in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies are cumulative to the extent permitted by law.

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Section 6.04 Waiver of Past Defaults.

The Holders of a majority in aggregate principal amount of the then outstanding Notes by written notice to the Trustee may, on behalf of the Holders of all of the Notes waive any existing Default or Event of Default and its consequences hereunder, except a continuing Default or Event of Default in the payment of principal of, premium, if any, on, or interest, if any, on, the Notes (including in connection with an offer to purchase); provided, however , that the Holders of a majority in aggregate principal amount of the then outstanding Notes may rescind an acceleration and its consequences, including any related payment default that resulted from such acceleration. Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

Section 6.05 Control by Majority.

Holders of a majority in aggregate principal amount of the then outstanding Notes may direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee or exercising any trust or power conferred on it. However, (a) the Trustee may refuse to follow any direction that conflicts with law or this Indenture that the Trustee determines may be unduly prejudicial to the rights of other Holders of Notes (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not any action or forbearance is unduly prejudicial to such Holders) or that may involve the Trustee in personal liability and (b) the Trustee may take other action not inconsistent with such direction..

Section 6.06 Limitation on Suits.

No Holder of a Note may pursue any remedy with respect to this Indenture or the Notes unless:

(1) such Holder has previously given the Trustee written notice that an Event of Default is continuing;

(2) Holders of at least 25% in aggregate principal amount of the then outstanding Notes make a written request to the Trustee to pursue the remedy;

(3) such Holder or Holders offer and, if requested, provide to the Trustee security or indemnity reasonably satisfactory to the Trustee against any loss, liability or expense;

(4) the Trustee does not comply with such request within 60 days after receipt of the request and the offer of security or indemnity; and

(5) during such 60-day period, Holders of a majority in aggregate principal amount of the then outstanding Notes do not give the Trustee a direction inconsistent with such request.

A Holder of a Note may not use this Indenture to prejudice the rights of another Holder of a Note or to obtain a preference or priority over another Holder of a Note.

Section 6.07 Rights of Holders of Notes to Receive Payment.

Notwithstanding any other provision of this Indenture, the contractual right of any Holder of a Note expressly set forth herein to receive payment of principal of, premium, if any, on, or interest, if any, on the Note, on or after the respective due dates expressed in the Note (including in connection with an offer to purchase), or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such Holder.

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For the avoidance of doubt, no amendment to, or deletion of, Sections 4.02 through Section 4.16 hereof, or action taken in compliance with the covenants in effect at the time of such action, shall be deemed to impair or affect any rights of any Holders of the Notes to receive payment of principal of, or premium, if any, or interest on, the Notes or to institute suit for the enforcement of any payment on or with respect to such Holder’s Notes.

Section 6.08 Collection Suit by Trustee.

If an Event of Default specified in Section 6.01(a)(1) or (2) hereof occurs and is continuing, the Trustee is authorized to recover judgment in its own name and as trustee of an express trust against the Partnership for the whole amount of principal of, premium, if any, on, and interest, if any, remaining unpaid on the Notes and interest on overdue principal and, to the extent lawful, interest and such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

Section 6.09 Trustee May File Proofs of Claim.

The Trustee is authorized to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the Holders of the Notes allowed in any judicial proceedings relative to the Partnership (or any other obligor upon the Notes), its creditors or its property and shall be entitled and empowered to collect, receive and distribute any money or other property payable or deliverable on any such claims and any custodian in any such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof. To the extent that the payment of any such compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof out of the estate in any such proceeding, shall be denied for any reason, payment of the same shall be secured by a Lien on, and shall be paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding whether in liquidation or under any plan of reorganization or arrangement or otherwise. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Holder, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

Section 6.10 Priorities.

If the Trustee collects any money pursuant to this Article 6, it shall pay out the money in the following order:

First : to the Trustee, its agents and attorneys for amounts due under Section 7.07 hereof, including payment of all compensation, expenses and liabilities incurred, and all advances made, by the Trustee and the costs and expenses of collection;

Second : to Holders of Notes for amounts due and unpaid on the Notes for principal, premium, if any, and interest, if any, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal, premium, if any, and interest, if any, respectively; and

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Third : to the Partnership or to such party as a court of competent jurisdiction shall direct.

The Trustee may fix a record date and payment date for any payment to Holders of Notes pursuant to this Section 6.10.

Section 6.11 Undertaking for Costs.

In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as a Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 6.11 does not apply to a suit by the Trustee, a suit by a Holder of a Note pursuant to Section 6.07 hereof, or a suit by Holders of more than 10% in aggregate principal amount of the then outstanding Notes.

ARTICLE 7

TRUSTEE

Section 7.01 Duties of Trustee.

(a) If an Event of Default has occurred and is continuing, the Trustee will exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in its exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs.

(b) Except during the continuance of an Event of Default:

(1) the duties of the Trustee will be determined solely by the express provisions of this Indenture and the Trustee need perform only those duties that are specifically set forth in this Indenture and no others, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, in the case of any such certificates or opinions which by any provision hereof are specifically required to be furnished to the Trustee, the Trustee will examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture (but need not investigate or confirm the accuracy of mathematical calculations or other facts stated therein).

(c) The Trustee may not be relieved from liabilities for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(1) this Section 7.01(c) does not limit the effect of Section 7.01(b) hereof;

(2) the Trustee will not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved that the Trustee was negligent in ascertaining the pertinent facts; and

(3) the Trustee will not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05 hereof.

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(d) Whether or not therein expressly so provided, every provision of this Indenture that in any way relates to the Trustee is subject to Sections 7.01(a), (b) and (c) hereof.

(e) No provision of this Indenture will require the Trustee to expend or risk its own funds or incur any liability. The Trustee will be under no obligation to exercise any of its rights or powers under this Indenture at the request of any Holders, unless such Holder has offered to the Trustee security and indemnity satisfactory to it against any loss, liability or expense.

(f) The Trustee will not be liable for interest on any money received by it except as the Trustee may agree in writing with the Partnership. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

Section 7.02 Rights of Trustee.

(a) The Trustee may conclusively rely upon any document believed by it to be genuine and to have been signed or presented by the proper Person. The Trustee need not investigate any fact or matter stated in the document.

(b) Before the Trustee acts or refrains from acting, it may require an Officers’ Certificate or an Opinion of Counsel or both. The Trustee will not be liable for any action it takes or omits to take in good faith in reliance on such Officers’ Certificate or Opinion of Counsel. The Trustee may consult with counsel and the advice of such counsel or any Opinion of Counsel will be full and complete authorization and protection from liability in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon.

(c) The Trustee may act through its attorneys and agents and will not be responsible for the misconduct or negligence of any agent appointed with due care.

(d) The Trustee will not be liable for any action it takes or omits to take in good faith that it believes to be authorized or within the rights or powers conferred upon it by this Indenture.

(e) Unless otherwise specifically provided in this Indenture, any demand, request, direction or notice from the Partnership will be sufficient if signed by an Officer.

(f) The Trustee will be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders unless such Holders have offered to the Trustee reasonable indemnity or security satisfactory to the Trustee against the losses, liabilities and expenses that might be incurred by it in compliance with such request or direction.

(g) The Trustee shall have no duty to inquire as to the performance of covenants in Article 4 hereof. In addition, the Trustee shall not be deemed to have knowledge of any Default or Event of Default except: (1) any Event of Default occurring pursuant to Section Section 6.01(a)(1) or Section 6.01(a)(2) hereof; or (2) any Default or Event of Default of which a Responsible Officer shall have received written notification from the Partnership or from Holders at the Corporate Trust Office and such notice references the Notes and this Indenture.

(h) The permissive right of the Trustee to act hereunder shall not be construed as a duty.

(i) The rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder and in its capacity as Trustee under any other agreement executed in connection with this Indenture to which the Trustee is a party.

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(j) In no event shall the Trustee be liable for special, punitive, indirect or consequential damages, including but not limited to lost profits, irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action arising in connection with the Indenture.

(k) The Trustee shall not be required to give any bond or surety in respect of the execution of the trusts and powers or otherwise in respect of this Indenture.

(l) Under no circumstances shall the Trustee be liable in its individual capacity for the obligations evidenced by the Notes.

Section 7.03 Individual Rights of Trustee.

The Trustee in its individual or any other capacity may become the owner or pledgee of Notes and may otherwise deal with the Partnership or any Affiliate of the Partnership with the same rights it would have if it were not Trustee. However, in the event that the Trustee acquires any conflicting interest it must eliminate such conflict within 90 days or resign. Any Agent may do the same with like rights and duties. The Trustee is also subject to Section Section 7.09 hereof.

Section 7.04 Trustee ’ s Disclaimer.

The Trustee will not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Partnership’s use of the proceeds from the Notes or any money paid to the Partnership or upon the Partnership’s direction under any provision of this Indenture, it will not be responsible for the use or application of any money received by any Paying Agent other than the Trustee, and it will not be responsible for any statement or recital herein or any statement in the Notes or any other document in connection with the sale of the Notes or pursuant to this Indenture other than its certificate of authentication.

Section 7.05 Notice of Defaults.

If a Default or Event of Default occurs and is continuing and if it is known to the Trustee (as provided in Section Section 7.02(g)), the Trustee will mail to Holders of Notes a notice of the Default or Event of Default within 90 days after the Trustee’s knowledge of such Default or Event of Default. Except in the case of a Default or Event of Default in payment of principal of, premium, if any, on, interest, if any, on, any Note, the Trustee may withhold the notice if and so long as a committee of its Responsible Officers in good faith determines that withholding the notice is in the interests of the Holders of the Notes.

Section 7.06 Compensation and Indemnity.

(a) The Partnership will pay to the Trustee from time to time such compensation as the Partnership and the Trustee may agree in writing for its acceptance of this Indenture and services hereunder. The Trustee’s compensation will not be limited by any law on compensation of a trustee of an express trust. The Partnership will reimburse the Trustee promptly upon request for all reasonable disbursements, advances and expenses incurred or made by it in addition to the compensation for its services. Such expenses will include the reasonable compensation, disbursements and expenses of the Trustee’s agents and counsel.

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(b) The Partnership and the Guarantors will, jointly and severally, indemnify, defend, protect and hold the Trustee harmless from and against any and all losses, liabilities or expenses (including attorneys’ fees and court costs) incurred by it arising out of or in connection with the acceptance or administration of its duties under this Indenture, including the costs and expenses of enforcing this Indenture against the Partnership and the Guarantors (including this Section Section 7.06) and defending itself against any claim (whether asserted by the Partnership, the Guarantors, any Holder or any other Person) or liability in connection with the exercise or performance of any of its powers or duties hereunder, except to the extent any such loss, liability or expense may be attributable to its willful misconduct or gross negligence as determined by a court of competent jurisdiction in a final, non-appealable judgment. The Trustee will notify the Partnership promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Partnership will not relieve the Partnership or any of the Guarantors of their obligations hereunder. The Partnership or such Guarantor will defend the claim and the Trustee will cooperate in the defense. The Trustee may have separate counsel and the Partnership will pay the reasonable fees and expenses of such counsel. Neither the Partnership nor any Guarantor need pay for any settlement made without its consent, which consent will not be unreasonably withheld.

(c) The obligations of the Partnership and the Guarantors under this Section Section 7.06 will survive the satisfaction and discharge of this Indenture.

(d) To secure the Partnership’s and the Guarantors’ payment obligations in this Section Section 7.06, the Trustee will have a Lien prior to the Notes on all money or property held or collected by the Trustee, except that held in trust to pay principal of, premium, if any, on, or interest, if any, on, particular Notes. Such Lien will survive the satisfaction and discharge of this Indenture.

(e) When the Trustee incurs expenses or renders services after an Event of Default specified in Section Section 6.01(a)(8) or Section 6.01(a)(9) hereof occurs, the expenses and the compensation for the services (including the fees and expenses of its agents and counsel) are intended to constitute expenses of administration under any Bankruptcy Law.

Section 7.07 Replacement of Trustee.

(a) A resignation or removal of the Trustee and appointment of a successor Trustee will become effective only upon the successor Trustee’s acceptance of appointment as provided in this Section Section 7.07.

(b) The Trustee may resign in writing at any time and be discharged from the trust hereby created by so notifying the Partnership. The Holders of a majority in aggregate principal amount of the then outstanding Notes may remove the Trustee upon 30 days’ prior notice by so notifying the Trustee and the Partnership in writing. The Partnership may remove the Trustee if:

(1) the Trustee fails to comply with Section 7.09 hereof;

(2) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the Trustee under any Bankruptcy Law;

(3) a custodian or public officer takes charge of the Trustee or its property; or

(4) the Trustee becomes incapable of acting.

(c) If the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Partnership will promptly appoint a successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in aggregate principal amount of the then outstanding Notes may appoint a successor Trustee to replace the successor Trustee appointed by the Partnership.

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(d) If a successor Trustee does not take office within 30 days after the retiring Trustee resigns or is removed, the retiring Trustee (at the expense of the Partnership), the Partnership, or the Holders of at least 10% in aggregate principal amount of the then outstanding Notes may petition any court of competent jurisdiction for the appointment of a successor Trustee.

(e) If the Trustee, after written request by any Holder who has been a Holder for at least six months, fails to comply with Section 7.09 hereof, such Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

(f) A successor Trustee will deliver a written acceptance of its appointment to the retiring Trustee and to the Partnership. Thereupon, the resignation or removal of the retiring Trustee will become effective, and the successor Trustee will have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee will mail a notice of its succession to Holders. The retiring Trustee will promptly transfer all property held by it as Trustee to the successor Trustee; provided all sums owing to the Trustee hereunder have been paid and subject to the Lien provided for in Section Section 7.06 hereof. Notwithstanding replacement of the Trustee pursuant to this Section Section 7.07, the Partnership’s obligations under Section Section 7.06 hereof will continue for the benefit of the retiring Trustee.

Section 7.08 Successor Trustee by Merger, etc.

If the Trustee consolidates, merges or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the successor corporation without any further act will be the successor Trustee.

Section 7.09 Eligibility; Disqualification.

There will at all times be a Trustee hereunder that is a corporation organized and doing business under the laws of the United States of America or of any state thereof that is authorized under such laws to exercise corporate trustee power, that is subject to supervision or examination by federal or state authorities and that has a combined capital and surplus of at least $50.0 million as set forth in its most recent published annual report of condition.

Section 7.10 Force Majeure.

In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; it being understood that the Trustee shall use reasonable efforts that are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances.

Section 7.11 U.S.A. PATRIOT Act.

The parties hereto acknowledge that in accordance with Section 326 of the U.S.A. PATRIOT Act (the “ Patriot Act ”), the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the Patriot Act.

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ARTICLE 8

LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01 Option to Effect Legal Defeasance or Covenant Defeasance.

The Partnership may at any time, at the option of the Board of Directors of the General Partner evidenced by a resolution set forth in an Officers’ Certificate, elect to have either Section 8.02 or 8.03 hereof be applied to all outstanding Notes upon compliance with the conditions set forth below in this Article 8.

Section 8.02 Legal Defeasance and Discharge.

Upon the Partnership’s exercise under Section 8.01 hereof of the option applicable to this Section 8.02, the Partnership and each of the Guarantors will, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be deemed to have been discharged from their obligations with respect to all outstanding Notes (including the Note Guarantees) on the date the conditions set forth below are satisfied (hereinafter, “ Legal Defeasance ”). For this purpose, Legal Defeasance means that the Partnership and the Guarantors will be deemed to have paid and discharged the entire Indebtedness represented by the outstanding Notes (including the Note Guarantees), which will thereafter be deemed to be “outstanding” only for the purposes of Section 8.05 hereof and the other Sections of this Indenture referred to in Sections 8.02(1) and 8.02(2), and to have satisfied all their other obligations under such Notes, the Note Guarantees and this Indenture (and the Trustee, on demand of and at the expense of the Partnership, shall execute proper instruments acknowledging the same), except for the following provisions which will survive until otherwise terminated or discharged hereunder:

(1) the rights of Holders of outstanding Notes to receive payments in respect of the principal of, premium, if any, on, or interest, if any, on such Notes when such payments are due from the trust referred to in Section 8.04 hereof;

(2) the Partnership’s obligations with respect to such Notes under Sections Section 2.03, Section 2.04, Section 2.07 and 4.02 hereof;

(3) the rights, powers, trusts, duties and immunities of the Trustee hereunder and the Partnership’s and the Guarantors’ obligations in connection therewith; and

(4) this Article 8.

Subject to compliance with this Article 8, the Partnership may exercise its option under this Section 8.02 notwithstanding the prior exercise of its option under Section 8.03 hereof.

Section 8.03 Covenant Defeasance.

Upon the Partnership’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, the Partnership and each of the Guarantors will, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be released from each of their obligations under the covenants contained in Sections Section 3.09, Section 4.03, 4.07, 4.08, 4.09, Section 4.10, 4.11, 4.12, 4.13, 4.15, 4.16 and 5.01(a)(4) hereof

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with respect to the outstanding Notes on and after the date the conditions set forth in Section 8.04 hereof are satisfied (hereinafter, “ Covenant Defeasance ”), and the Notes will thereafter be deemed not “outstanding” for the purposes of any direction, waiver, consent or declaration or act of Holders (and the consequences of any thereof) in connection with such covenants, but will continue to be deemed “outstanding” for all other purposes hereunder (it being understood that such Notes will not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Notes and Note Guarantees, the Partnership and the Guarantors may omit to comply with and will have no liability in respect of any term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply will not constitute a Default or an Event of Default under Section 6.01 hereof, but, except as specified above, the remainder of this Indenture and such Notes and Note Guarantees will be unaffected thereby. In addition, upon the Partnership’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, Sections 6.01(a)(3), 6.01(a)(4), 6.01(a)(5), 6.01(a)(6) and 6.01(a)(7) hereof will not constitute Events of Default.

Section 8.04 Conditions to Legal or Covenant Defeasance.

In order to exercise either Legal Defeasance or Covenant Defeasance under either Section 8.02 or 8.03 hereof:

(1) the Partnership must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders, cash in U.S. dollars, non-callable Government Securities, or a combination thereof, in such amounts as will be sufficient, in the opinion of a nationally recognized investment bank, appraisal firm, or firm of independent public accountants delivered to the Trustee, to pay the principal of, premium, if any, on, and interest, if any, on the outstanding Notes on the stated date for payment thereof or on the applicable redemption date, as the case may be, and the Partnership must specify whether the Notes are being defeased to such stated date for payment or to a particular redemption date;

(2) in the case of an election under Section 8.02 hereof, the Partnership must deliver to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that:

(A) the Partnership has received from, or there has been published by, the Internal Revenue Service a ruling; or

(B) since the date of this Indenture, there has been a change in the applicable federal income tax law,

in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders of the outstanding Notes will not recognize income, gain or loss for federal income tax purposes as a result of such Legal Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Legal Defeasance had not occurred;

(3) in the case of an election under Section 8.03 hereof, the Partnership must deliver to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that the Holders of the outstanding Notes will not recognize income, gain or loss for federal income tax purposes as a result of such Covenant Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Covenant Defeasance had not occurred;

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(4) no Default or Event of Default shall have occurred and is continuing on the date of such deposit (other than a Default or Event of Default resulting from the borrowing of funds to be applied to such deposit (and any similar concurrent deposit relating to other Indebtedness), and the granting of Liens to secure such borrowings);

(5) such Legal Defeasance or Covenant Defeasance will not result in a breach or violation of, or constitute a default under, any material agreement or instrument (other than this Indenture and the agreements governing any other Indebtedness being defeased, discharged or replaced) to which the Partnership or any of the Guarantors is a party or by which the Partnership or any of the Guarantors is bound;

(6) the Partnership must deliver to the Trustee an Officers’ Certificate stating that the deposit was not made by the Partnership with the intent of preferring the Holders of Notes over the other creditors of the Partnership with the intent of defeating, hindering, delaying or defrauding any creditors of the Partnership or others; and

(7) the Partnership must deliver to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent relating to the Legal Defeasance or the Covenant Defeasance have been complied with.

Section 8.05 Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions.

Subject to Section 8.06 hereof, all money and non-callable Government Securities (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 8.05, the “ Trustee ”) pursuant to Section 8.04 hereof in respect of the outstanding Notes will be held in trust and applied by the Trustee, in accordance with the provisions of such Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Partnership acting as Paying Agent) as the Trustee may determine, to the Holders of such Notes of all sums due and to become due thereon in respect of principal, premium, if any, and interest, if any, but such money need not be segregated from other funds except to the extent required by law.

The Partnership will pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the cash or non-callable Government Securities deposited pursuant to Section 8.04 hereof or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of the outstanding Notes.

Notwithstanding anything in this Article 8 to the contrary, the Trustee will deliver or pay to the Partnership from time to time upon the request of the Partnership any money or non-callable Government Securities held by it as provided in Section 8.04 hereof which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee (which may be the opinion delivered under Section 8.04(1) hereof), are in excess of the amount thereof that would then be required to be deposited to effect an equivalent Legal Defeasance or Covenant Defeasance.

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Section 8.06 Repayment to Partnership.

Subject to applicable escheat and abandoned property laws, any money deposited with the Trustee or any Paying Agent, or then held by the Partnership, in trust for the payment of the principal of, premium, if any, on, or interest, if any, on any Note and remaining unclaimed for two years after such principal, premium, if any, or interest, if any, has become due and payable shall be paid to the Partnership on its request or (if then held by the Partnership) will be discharged from such trust; and the Holder of such Note will thereafter be permitted to look only to the Partnership for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Partnership as trustee thereof, will thereupon cease; provided, however , that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Partnership cause to be published once, in the New York Times and The Wall Street Journal (national edition), notice that such money remains unclaimed and that, after a date specified therein, which will not be less than 30 days from the date of such notification or publication, any unclaimed balance of such money then remaining will be repaid to the Partnership.

Section 8.07 Reinstatement.

If the Trustee or Paying Agent is unable to apply any U.S. dollars or non-callable Government Securities in accordance with Section 8.02 or 8.03 hereof, as the case may be, by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Partnership’s and the Guarantors’ obligations under this Indenture and the Notes and the Note Guarantees will be revived and reinstated as though no deposit had occurred pursuant to Section 8.02 or 8.03 hereof until such time as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section 8.02 or 8.03 hereof, as the case may be; provided, however , that, if the Partnership makes any payment of principal of, premium, if any, on, or interest, if any, on, any Note following the reinstatement of its obligations, the Partnership will be subrogated to the rights of the Holders of such Notes to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE 9

AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01 Without Consent of Holders of Notes.

Notwithstanding Section 9.02 of this Indenture, without the consent of any Holder of Notes, the Partnership, the Guarantors and the Trustee may amend or supplement this Indenture, the Notes or the Note Guarantees:

(1) to cure any ambiguity, defect or inconsistency;

(2) to provide for uncertificated Notes in addition to or in place of certificated Notes;

(3) to provide for the assumption of the Partnership’s or a Guarantor’s obligations to the Holders of the Notes and Note Guarantees by a successor to the Partnership or such Guarantor pursuant to Article 5 or Article 10 hereof;

(4) to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights hereunder of any Holder;

(5) to conform the text of this Indenture, the Notes or the Note Guarantees to any provision of the “Description of notes” section of the Offering Memorandum;

(6) to allow any Guarantor to execute a supplemental indenture and/or a Note Guarantee with respect to the Notes;

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(7) to secure the Notes and/or the Guarantees; or

(8) to provide for the reorganization of the Partnership as any other form of entity, in accordance with the provisions of Section 5.01.

Upon the request of the Partnership accompanied by a resolution of the Board of Directors of the General Partner authorizing the execution of any such amended or supplemental indenture, and upon receipt by the Trustee of the documents described in Section 7.02 hereof, the Trustee will join with the Partnership and the Guarantors in the execution of any amended or supplemental indenture authorized or permitted by the terms of this Indenture and to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee will not be obligated to enter into such amended or supplemental indenture that affects its own rights, duties or immunities under this Indenture or otherwise.

Section 9.02 With Consent of Holders of Notes.

Except as provided below in this Section 9.02, the Partnership and the Trustee may amend or supplement this Indenture (including, without limitation, Sections 3.09, Section 4.10 and 4.13 hereof) and the Notes and the Note Guarantees with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes (including, without limitation, Additional Notes, if any) voting as a single class (including, without limitation, consents obtained in connection with a tender offer or exchange offer for, or purchase of, the Notes), and, subject to Sections 6.04 and 6.07 hereof, any existing Default or Event of Default (other than a Default or Event of Default in the payment of the principal of, premium, if any, on, or interest, if any, on, the Notes, except a payment default resulting from an acceleration that has been rescinded) or compliance with any provision of this Indenture or the Notes or the Note Guarantees may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes (including, without limitation, Additional Notes, if any) voting as a single class (including, without limitation, consents obtained in connection with a tender offer or exchange offer for, or purchase of, the Notes). Section 2.08 hereof shall determine which Notes are considered to be “outstanding” for purposes of this Section 9.02.

Upon the request of the Partnership accompanied by a resolution of the Board of Directors of the General Partner authorizing the execution of any such amended or supplemental indenture, and upon the filing with the Trustee of evidence satisfactory to the Trustee of the consent of the Holders of Notes as aforesaid, and upon receipt by the Trustee of the documents described in Section 7.02 hereof, the Trustee will join with the Partnership and the Guarantors in the execution of such amended or supplemental indenture unless such amended or supplemental indenture directly affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee may in its discretion, but will not be obligated to, enter into such amended or supplemental Indenture.

It is not necessary for the consent of the Holders of Notes under this Section 9.02 to approve the particular form of any proposed amendment, supplement or waiver, but it is sufficient if such consent approves the substance thereof.

After an amendment, supplement or waiver under this Section 9.02 becomes effective, the Partnership will mail to the Holders of Notes affected thereby a notice briefly describing the amendment, supplement or waiver. Any failure of the Partnership to mail such notice, or any defect therein, will not, however, in any way impair or affect the validity of any such amended or supplemental indenture or waiver. Subject to Sections 6.04 and 6.07 hereof, the Holders of a majority in aggregate principal amount of the Notes then outstanding voting as a single class may waive compliance in a particular instance by the Partnership with any provision of this Indenture, the Notes or the Note Guarantees. However, without the consent of each Holder affected, an amendment, supplement or waiver under this Section 9.02 may not (with respect to any Notes held by a non-consenting Holder):

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(1) reduce the principal amount of Notes whose Holders must consent to an amendment, supplement or waiver;

(2) reduce the principal of or change the fixed maturity of any Note or alter or waive any of the provisions with respect to the redemption of the Notes (except as provided above with respect to Sections 3.09, Section 4.10 and 4.13 hereof or the notice period required with respect to any redemption of Notes pursuant to Article 3);

(3) reduce the rate of or change the time for payment of interest, including default interest, on any Note;

(4) waive a Default or Event of Default in the payment of principal of, premium, if any, on, or interest, if any, on, the Notes (except a rescission of acceleration of the Notes by the Holders of at least a majority in aggregate principal amount of the then outstanding Notes and a waiver of the payment default that resulted from such acceleration);

(5) make any Note payable in money other than that stated in the Notes;

(6) Except as pursuant to Section 9.02(7) hereof, make any change in the provisions of this Indenture relating to waivers of past Defaults or the rights of Holders expressly set forth in this Indenture of any Holder of Notes to receive payments of principal of, premium, if any, on, or interest, if any, on the Notes;

(7) waive a redemption or repurchase payment with respect to any Note (other than a payment required by Sections 3.09, 4.10 or 4.13 hereof);

(8) release any Guarantor from any of its obligations under its Note Guarantee or this Indenture, except in accordance with the terms of this Indenture; or

(9) make any change in the preceding amendment, supplement and waiver provisions.

Section 9.03 Revocation and Effect of Consents.

Until an amendment, supplement or waiver becomes effective, a consent to it by a Holder of a Note is a continuing consent by the Holder of a Note and every subsequent Holder of a Note or portion of a Note that evidences the same debt as the consenting Holder’s Note, even if notation of the consent is not made on any Note. However, except as may be provided by the terms of any request for consent, any such Holder of a Note or subsequent Holder of a Note may revoke the consent as to its Note if the Trustee receives written notice of revocation before the date the amendment, supplement or waiver becomes effective. An amendment, supplement or waiver becomes effective in accordance with its terms and thereafter binds every Holder.

Section 9.04 Notation on or Exchange of Notes.

The Trustee may place an appropriate notation about an amendment, supplement or waiver on any Note thereafter authenticated. The Partnership in exchange for all Notes may issue and the Trustee shall, upon receipt of an Authentication Order, authenticate new Notes that reflect the amendment, supplement or waiver.

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Failure to make the appropriate notation or issue a new Note will not affect the validity and effect of such amendment, supplement or waiver.

Section 9.05 Trustee to Sign Amendments, etc.

The Trustee will sign any amended or supplemental indenture authorized pursuant to this Article 9 if the amendment or supplement does not adversely affect the rights, duties, liabilities or immunities of the Trustee. In executing any amended or supplemental indenture, the Trustee will be entitled to receive and (subject to Section 7.01 hereof) will be fully protected in relying upon, in addition to the documents required by Section 12.04 hereof, an Officers’ Certificate and an Opinion of Counsel stating that the execution of such amended or supplemental indenture is authorized or permitted by this Indenture.

ARTICLE 10

NOTE GUARANTEES

Section 10.01 Guarantee.

(a) Subject to this Article 10, each of the Guarantors hereby, jointly and severally, absolutely, irrevocably and unconditionally guarantees to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of this Indenture, the Notes or the obligations of the Partnership hereunder or thereunder, that:

(1) the principal of, premium, if any, on, and interest (including interest accruing after the filing of any petition in bankruptcy or like proceeding relating to the Partnership or any other Guarantor, whether or not allowed in such proceeding), if any, on the Notes will be promptly paid in full when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of, premium, if any, on, and interest (including interest accruing after the filing of any petition in bankruptcy or like proceeding relating to the Partnership or any other Guarantor, whether or not allowed in such proceeding), if any, on, the Notes, if lawful, and all other obligations of the Partnership to the Holders or the Trustee hereunder or thereunder will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and

(2) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise.

Failing payment when due of any amount so guaranteed or any performance so guaranteed for whatever reason, the Guarantors will be jointly and severally obligated to pay the same immediately. Each Guarantor agrees that this is a continuing guarantee of payment and not a guarantee of collection.

(b) The Guarantors hereby agree that their obligations hereunder are unconditional, irrespective of the validity, regularity or enforceability of the Notes or this Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Partnership, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. Each Guarantor hereby waives diligence, presentment, demand of payment, marshaling, filing of claims with a court in the event of insolvency or bankruptcy of the Partnership, any right to require a proceeding first against the Partnership, protest, notice and all demands whatsoever and covenant that this Note Guarantee will not be subject to any impairment, set-off, defense, counterclaim or discharge, except by complete performance of the obligations contained in the Notes and this Indenture. Without limiting the generality of the foregoing, this Note Guarantee and the obligations of each Guarantor hereunder shall not be affected by, and each Guarantor hereby waives all rights, claims or defenses that it might otherwise have with respect to:

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(1) any renewal, extension or acceleration of, or any increase in the amount of the obligations hereunder, or any amendment, supplement, modification or waiver of, or any consent to departure from, this Indenture; or

(2) any change, reorganization or termination of the corporate structure or existence of the Partnership or any other Guarantor or any of their Subsidiaries and any corresponding restructuring of the obligations hereunder.

(c) If any Holder or the Trustee is required by any court or otherwise to return to the Partnership, the Guarantors or any custodian, trustee, liquidator or other similar official acting in relation to either the Partnership or the Guarantors, any amount paid by either to the Trustee or such Holder, this Note Guarantee, to the extent theretofore discharged, will be reinstated in full force and effect.

(d) Each Guarantor agrees that any right of subrogation, reimbursement or contribution it may have in relation to the Holders or in respect of any obligations guaranteed hereby shall be subordinated to, and shall not be enforceable until payment in full of, all obligations guaranteed hereby. Each Guarantor further agrees that, as between the Guarantors, on the one hand, and the Holders and the Trustee, on the other hand, (1) the maturity of the obligations guaranteed hereby may be accelerated as provided in Article 6 hereof for the purposes of this Note Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (2) in the event of any declaration of acceleration of such obligations as provided in Article 6 hereof, such obligations (whether or not due and payable) will forthwith become due and payable by the Guarantors for the purpose of this Note Guarantee. The Guarantors will have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not impair the rights of the Holders under the Note Guarantee.

Section 10.02 Limitation on Guarantor Liability.

Each Guarantor, and by its acceptance of Notes, each Holder, hereby confirms that it is the intention of all such parties that the Note Guarantee of such Guarantor not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to any Note Guarantee. To effectuate the foregoing intention, the Trustee, the Holders and the Guarantors hereby irrevocably agree that the obligations of such Guarantor will be limited to the maximum amount that will, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guarantor that are relevant under such laws, and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under this Article 10, result in the obligations of such Guarantor under its Note Guarantee not constituting a fraudulent transfer or conveyance.

Section 10.03 Execution and Delivery of Note Guarantee.

The Note Guarantee set forth in Section 10.01 hereof of any Guarantor shall be evidenced solely by its execution and delivery of this Indenture (or, in the case of any Guarantor that is not party to this Indenture on the date hereof, a supplemental indenture) and not by an endorsement on, or attachment to, any Note of any Note Guarantee or notation thereof. To effect any Note Guarantee of any Guarantor not a party to this Indenture on the date hereof, such future Guarantor shall execute and deliver a supplemental indenture substantially in the form of Exhibit D hereto, which supplemental indenture shall be executed and delivered on behalf of such Guarantor by an Officer of such Guarantor.

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Each Guarantor hereby agrees that its Note Guarantee set forth in Section 10.01 hereof will remain in full force and effect notwithstanding any failure to endorse on each Note a notation of such Note Guarantee.

If an Officer whose signature is on this Indenture or on the Note Guarantee no longer holds that office at the time the Trustee authenticates the Note on which a Note Guarantee is endorsed, the Note Guarantee will be valid nevertheless.

The delivery of any Note by the Trustee, after the authentication thereof hereunder, will constitute due delivery of the Note Guarantee set forth in this Indenture on behalf of the Guarantors.

Section 10.04 Guarantors May Consolidate, etc., on Certain Terms.

(a) Except as otherwise provided in Section 10.05 hereof, no Guarantor may, directly or indirectly, sell, assign, transfer, convey, or otherwise dispose of all or substantially all of its assets to, or consolidate with or merge with or into (whether or not such Guarantor is the surviving Person) another Person, other than the Partnership or another Guarantor, unless:

(1) immediately after giving effect to such transaction, no Default or Event of Default exists; and

(2) either:

(a) subject to Section 10.05 hereof, the Person acquiring the properties or assets in any such sale, assignment, transfer, conveyance or disposition or the Person formed by or surviving any such consolidation or merger unconditionally assumes all the obligations of that Guarantor under its Note Guarantee and this Indenture on the terms set forth herein or therein, pursuant to a supplemental indenture in form and substance reasonably satisfactory to the Trustee; or

(b) the Net Proceeds of such sale, assignment, transfer, conveyance, or other disposition are applied in accordance with the applicable provisions of this Indenture, including without limitation, Section Section 4.10 hereof.

(b) In case of any such consolidation, merger, sale, assignment, transfer, or conveyance and upon the assumption by the successor Person, by supplemental indenture, executed and delivered to the Trustee and satisfactory in form to the Trustee, of the Note Guarantee endorsed upon the Notes and the due and punctual performance of all of the covenants and conditions of this Indenture to be performed by the Guarantor, such successor Person will succeed to and be substituted for the Guarantor with the same effect as if it had been named herein as a Guarantor. Such successor Person thereupon may cause to be signed any or all of the Note Guarantees to be endorsed upon all of the Notes issuable hereunder which theretofore shall not have been signed by the Partnership and delivered to the Trustee. All the Note Guarantees so issued will in all respects have the same legal rank and benefit under this Indenture as the Note Guarantees theretofore and thereafter issued in accordance with the terms of this Indenture as though all of such Note Guarantees had been issued at the date of the execution hereof.

(c) Notwithstanding Section 10.04(a)(2), nothing contained in this Indenture or in any of the Notes will prevent any consolidation or merger of a Guarantor with or into the Partnership or another Guarantor, or will prevent any sale, assignment, transfer, or conveyance of the property of a Guarantor as an entirety or substantially as an entirety to the Partnership or another Guarantor.

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Section 10.05 Releases.

The Note Guarantee of a Guarantor shall be automatically released:

(a) In the event of any sale, assignment, transfer, conveyance or other disposition of all or substantially all of the properties or assets of such Guarantor, by way of merger, consolidation or otherwise, to a Person that is not (either before or after giving effect to such transaction) the Partnership or a Restricted Subsidiary of the Partnership, if the sale, assignment, transfer, conveyance or other disposition does not violate Section Section 4.10 of this Indenture;

(b) In the event of any sale, assignment, transfer, conveyance, or other disposition of Capital Stock of such Guarantor, by way of merger, consolidation or otherwise to a Person that is not (either before or after giving effect to such transaction) the Partnership or a Restricted Subsidiary of the Partnership and such Guarantor ceases to be a Restricted Subsidiary of the Partnership as a result of the sale or other disposition, if the sale, assignment, transfer, conveyance or other disposition does not violate Section Section 4.10 of this Indenture;

(c) Upon designation of such Guarantor as an Unrestricted Subsidiary in accordance with the terms of this Indenture;

(d) Upon Legal Defeasance or Covenant Defeasance in accordance with Article 8 hereof or satisfaction and discharge of this Indenture in accordance with Article 11 hereof;

(e) Upon the liquidation or dissolution of such Guarantor in a transaction or series of transactions that does not violate the terms of this Indenture;

(f) At such time as such Guarantor ceases to guarantee any other Indebtedness of the Partnership or another Guarantor under a Credit Facility; provided that, if it is also a Domestic Subsidiary, it is then no longer an obligor with respect to any Indebtedness under any Credit Facility; or

(g) On the first day on which the Notes then outstanding are rated Investment Grade; provided that such Note Guarantee shall be reinstated upon the Reinstatement Date.

Upon delivery by the Partnership to the Trustee of an Officers’ Certificate and Opinion of Counsel to the effect that all conditions precedent have been complied with, the Trustee shall execute any documents reasonably requested by the Partnership in order to evidence the release of any Guarantor from its obligations under its Note Guarantee. Any Guarantor not released from its obligations under its Note Guarantee as provided in this Section 10.05 will remain liable for the full amount of principal of, premium, if any, on, and interest, if any, on the Notes and for the other obligations of any Guarantor under this Indenture as provided in this Article 10.

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ARTICLE 11

SATISFACTION AND DISCHARGE

Section 11.01 Satisfaction and Discharge.

This Indenture will be discharged and will cease to be of further effect as to all Notes issued hereunder, when:

(1) either:

(A) all Notes that have been authenticated, except lost, stolen or destroyed Notes that have been replaced or paid and Notes for whose payment money has been deposited in trust and thereafter repaid to the Partnership, have been delivered to the Trustee for cancellation; or

(B) all Notes that have not been delivered to the Trustee for cancellation have become due and payable by reason of the mailing of a notice of redemption or otherwise or will become due and payable within one year and the Partnership or any Guarantor has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the Holders, cash in U.S. dollars, non-callable Government Securities, or a combination thereof, in such amounts as will be sufficient, without consideration of any reinvestment of interest (which, in the case of a deposit of Government Securities, will be based on the opinion of a nationally recognized investment bank, appraisal firm or firm of independent public accountants delivered to the Trustee), to pay and discharge the entire Indebtedness on the Notes not delivered to the Trustee for cancellation for principal, premium, if any, and interest, if any, to the date of maturity or redemption;

(2) the Partnership or any Guarantor has paid or caused to be paid all sums payable by it under this Indenture; and

(3) the Partnership has delivered irrevocable instructions to the Trustee under this Indenture to apply the deposited money toward the payment of the Notes at maturity or on the redemption date, as the case may be.

In addition, the Partnership must deliver an Officers’ Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied.

Notwithstanding the satisfaction and discharge of this Indenture, if money has been deposited with the Trustee pursuant to Section 11.01(1)(B), the provisions of Sections 11.02 and 8.06 hereof will survive. In addition, nothing in this Section 11.01 will be deemed to discharge those provisions of Section 7.07 hereof, that, by their terms, survive the satisfaction and discharge of this Indenture.

Section 11.02 Application of Trust Money.

Subject to the provisions of Section 8.06 hereof, all money deposited with the Trustee pursuant to Section 11.01 hereof shall be held in trust and applied by it, in accordance with the provisions of the Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Partnership acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal, premium, if any, and interest, if any, for whose payment such money has been deposited with the Trustee; but such money need not be segregated from other funds except to the extent required by law.

The Partnership will pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the cash or non-callable Government Securities deposited pursuant to Section hereof or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of the outstanding Notes.

If the Trustee or Paying Agent is unable to apply any money or Government Securities in accordance with Section 11.01 hereof by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Partnership’s and any Guarantor’s obligations under this Indenture and the Notes shall be

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revived and reinstated as though no deposit had occurred pursuant to Section 11.01 hereof; provided that if the Partnership has made any payment of principal of, premium, if any, on, or interest, if any, on, any Notes because of the reinstatement of its obligations, the Partnership shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or Government Securities held by the Trustee or Paying Agent.

ARTICLE 12

MISCELLANEOUS

Section 12.01 Notices.

Any notice or communication by the Partnership, any Guarantor or the Trustee to the others is duly given if in writing and delivered in Person or by first class mail (registered or certified, return receipt requested), facsimile transmission or overnight air courier guaranteeing next day delivery, to the others’ address:

If to the Partnership and/or any Guarantor:

Hi-Crush Partners LP

1330 Post Oak Boulevard, Suite 600

Houston, Texas 77056

Facsimile No.: (713) 980-6202

Attention: General Counsel

With a copy to:

Vinson & Elkins L.L.P.

1001 Fannin Street, Suite 2500

Houston, TX 77002

Facsimile No.: (713) 751-5396

Attention: E. Ramey Layne

If to the Trustee:

U.S. Bank National Association

8 Greenway Plaza, Suite 1100

Houston, Texas 77046-0892

Facsimile No.: (713) 212-3718

Attention: Corporate Trust

The Partnership, any Guarantor or the Trustee, by notice to the others, may designate additional or different addresses for subsequent notices or communications.

All notices and communications (other than those sent to Holders) will be deemed to have been duly given: at the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt acknowledged, if transmitted by facsimile; and the next Business Day after timely delivery to the courier, if sent by overnight air courier guaranteeing next day delivery.

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Any notice or communication to a Holder will be mailed by first class mail or by overnight air courier guaranteeing next day delivery to its address shown on the register kept by the Registrar. Failure to mail a notice or communication to a Holder or any defect in it will not affect its sufficiency with respect to other Holders.

If a notice or communication is mailed in the manner provided above within the time prescribed, it is duly given, whether or not the addressee receives it.

If the Partnership mails a notice or communication to Holders, it will mail a copy to the Trustee and each Agent at the same time.

Notwithstanding any other provision of this Indenture or any Note, where this Indenture or any Note provides for notice of any event (including any notice of redemption or purchase) to a Holder of a Global Note (whether by mail or otherwise), such notice shall be sufficiently given if given to the Depositary (or its designee) pursuant to the standing instructions from Depositary or its designee, including by electronic mail in accordance with the applicable Depositary procedures.

The Trustee agrees to accept and act upon instructions or directions pursuant to this Indenture sent by unsecured e-mail, facsimile transmission or other similar unsecured electronic methods; provided, however, that (a) the party providing such written instructions, subsequent to such transmission of written instructions, shall provide the originally executed instructions or directions to the Trustee in a timely manner, and such originally executed instructions or directions shall be signed by an authorized representative of the party providing such instructions or directions. If the party elects to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic method) and the Trustee in its discretion elects to act upon such instructions, the Trustee’s understanding of such instructions shall be deemed controlling. The Trustee shall not be liable for any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and compliance with such instructions notwithstanding such instructions conflict or are inconsistent with a subsequent written instruction. The party providing electronic instructions agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk or interception and misuse by third parties.

Section 12.02 Certificate and Opinion as to Conditions Precedent.

Upon any request or application by the Partnership to the Trustee to take any action under this Indenture, the Partnership shall furnish to the Trustee:

(1) an Officers’ Certificate in form and substance reasonably satisfactory to the Trustee (which must include the statements set forth in Section Section 12.03 hereof) stating that, in the opinion of the signers, all conditions precedent and covenants, if any, provided for in this Indenture relating to the proposed action have been satisfied; and

(2) an Opinion of Counsel in form and substance reasonably satisfactory to the Trustee (which must include the statements set forth in Section Section 12.03 hereof) stating that, in the opinion of such counsel, all such conditions precedent and covenants have been satisfied; provided, however , that the Partnership shall not be required to furnish such Opinion of Counsel in connection with their request for the Trustee to authenticate the Notes on the date of this Indenture.

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Section 12.03 Statements Required in Certificate or Opinion.

Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture and must include:

(1) a statement that the Person making such certificate or opinion has read such covenant or condition;

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of such Person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed opinion as to whether or not such covenant or condition has been satisfied; and

(4) a statement as to whether or not, in the opinion of such Person, such condition or covenant has been satisfied.

Section 12.04 Rules by Trustee and Agents.

The Trustee may make reasonable rules for action by or at a meeting of Holders. The Registrar or Paying Agent may make reasonable rules and set reasonable requirements for its functions.

Section 12.05 No Personal Liability of Directors, Officers, Employees and Stockholders.

No director, officer, employee, incorporator or stockholder of the General Partner, the Partnership or any Guarantor, as such, will have any liability for any obligations of the Partnership or the Guarantors under the Notes, this Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

Section 12.06 Governing Law; Waiver of Jury Trial.

THE INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THIS INDENTURE, THE NOTES AND THE NOTE GUARANTEES WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. EACH OF THE PARTNERSHIP, THE GUARANTORS AND THE TRUSTEE IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED BY THIS INDENTURE OR THE NOTES.

Section 12.07 No Adverse Interpretation of Other Agreements.

This Indenture may not be used to interpret any other indenture, loan or debt agreement of the Partnership or its Subsidiaries or of any other Person. Any such indenture, loan or debt agreement may not be used to interpret this Indenture.

Section 12.08 Successors.

All agreements of the Partnership in this Indenture and the Notes will bind its successors. All agreements of the Trustee in this Indenture will bind its successors. All agreements of each Guarantor in this Indenture will bind its successors, except as otherwise provided in Section 10.05 hereof.

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Section 12.09 Severability.

In case any provision in this Indenture or in the Notes is invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions will not in any way be affected or impaired thereby.

Section 12.10 Counterpart Originals.

The parties may sign any number of copies of this Indenture. Each signed copy will be an original, but all of them together represent the same agreement. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture as to the parties hereto, and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

Section 12.11 Table of Contents, Headings, etc.

The Table of Contents, Cross-Reference Table and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and will in no way modify or restrict any of the terms or provisions hereof.

[Signatures pages follow]

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SIGNATURES

Dated as of August 1, 2018

[Signature Page to Indenture]

Dated as of August 1, 2018

[Signature Page to Indenture]

[Face of Note]

[Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture]

[Insert the Regulation S Legend, if applicable pursuant to the provisions of the Indenture]

[Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture]

CUSIP/CINS ____________

9.500% Senior Notes due 2026

HI-CRUSH PARTNERS LP

promises to pay to                      or registered assigns, the principal sum of                      DOLLARS* on August 1, 2026.

Interest Payment Dates: August 1 and February 1, beginning on February 1, 2019.

Record Dates: July 15 and January 15

[Signature page follows]

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[Signature Page to Global Note]

[Back of Note]

9.500% Senior Notes due 2026

Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

(1) I NTEREST . Hi-Crush Partners LP, a Delaware limited partnership (the “ Partnership ”), promises to pay or cause to be paid interest on the principal amount of this Note at 9.500% per annum. The Partnership will pay interest, if any, semi-annually in arrears on August 1 and February 1 of each year, or if any such day is not a Business Day, on the next succeeding Business Day (each, an “ Interest Payment Date ”). Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from the date of issuance; provided that, if this Note is authenticated between a record date referred to on the face hereof and the next succeeding Interest Payment Date, interest shall accrue from such next succeeding Interest Payment Date; provided further that the first Interest Payment Date shall be             ,         . The Partnership will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at the rate equal to the interest rate applicable to the Notes to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest, if any (without regard to any applicable grace period), at the same rate to the extent lawful. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months.

(2) M ETHOD OF P AYMENT . The Partnership will pay interest on the Notes (except defaulted interest), if any, to the Persons who are registered Holders of Notes at the close of business on the July 15 or January 15 next preceding the Interest Payment Date, even if such Notes are canceled after such record date and on or before such Interest Payment Date, except as provided in Section Section 2.12 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium, if any, and interest, if any, at the office or agency of the Paying Agent and Registrar maintained for such purpose, or, at the option of the Partnership, payment of interest, if any, may be made by check mailed to the Holders at their addresses set forth in the register of Holders; provided that payment by wire transfer of immediately available funds will be required with respect to principal of, premium, if any, on, and interest, if any, on, all Global Notes and all other Notes the Holders of which will have provided, no later than 30 days preceding the due date for such payment, wire transfer instructions to the Partnership or the Paying Agent to an account in the continental United States of America. Such payment will be 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.

(3) P AYING A GENT AND R EGISTRAR . Initially, U.S. Bank National Association, the trustee under the Indenture (the “ Trustee ”), will act as Paying Agent and Registrar. The Partnership may change the Paying Agent or Registrar without prior notice to the Holders of the Notes. The Partnership or any of its Subsidiaries may act as Paying Agent or Registrar.

(4) I NDENTURE . The Partnership issued the Notes under an Indenture dated as of August 1, 2018 (the “ Indenture ”) among the Partnership, the Guarantors and the Trustee. The terms of the Notes include those stated in the Indenture. The Notes are subject to all such terms, and Holders are referred to the Indenture for a statement of such terms. To the extent any provision of this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Notes are unsecured obligations of the Partnership. The Indenture does not limit the aggregate principal amount of Notes that may be issued thereunder.

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(5) O PTIONAL R EDEMPTION .

(a) At any time prior to August 1, 2021, the Partnership may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under the Indenture, upon notice as provided in Section Section 3.03 of the Indenture, at a redemption price equal to 109.500% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to, but excluding, the applicable date of redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant Interest Payment Date that is on or prior to the redemption date, in an amount of cash not greater than the net proceeds of one or more Equity Offerings; provided that:

(i) at least 65% of the aggregate principal amount of Notes originally issued under the Indenture (excluding Notes held by the Partnership and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and

(ii) the redemption occurs within 180 days of the date of the closing of such Equity Offering.

(b) At any time prior to August 1, 2021, the Partnership may on any one or more occasions redeem all or a part of the Notes, upon notice as provided in Section Section 3.03 of the Indenture, at a redemption price equal to 100% of the principal amount of the Notes redeemed, plus the Applicable Premium as of, and accrued and unpaid interest, if any, to, but excluding, the date of redemption, subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date.

(c) Except as pursuant to Section Section 3.07(a), Section 3.07(b) or Section 4.13(d) of the Indenture, the Notes will not be redeemable at the Partnership’s option prior to August 1, 2021.

(d) On or after August 1, 2021, the Partnership may on any one or more occasions redeem all or a part of the Notes, upon notice as provided in Section Section 3.03 of the Indenture, at the redemption prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid interest, if any, on the Notes redeemed, to, but excluding, the applicable date of redemption, if redeemed during the twelve-month period beginning on August 1 of the years indicated below, subject to the rights of Holders on the relevant record date to receive interest on the relevant interest payment date:

Unless the Partnership defaults in the payment of the redemption price, interest will cease to accrue on the Notes or portions thereof called for redemption on the applicable redemption date.

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(e) In the event that holders of not less than 90% of the aggregate principal amount of the outstanding notes accept a Change of Control Offer or Alternate Offer and the Partnership purchases all of the notes held by such holders, the Partnership will have the right, upon not less than 15 nor more than 60 days’ prior notice, given not more than 30 days following the purchase pursuant to the Change of Control Offer or Alternate Offer described above, to redeem all of the notes that remain outstanding following such purchase at a redemption price equal to the Change of Control Payment or Alternate Offer price, as applicable, plus, to the extent not included in the Change of Control Payment or Alternate Offer price, as applicable, accrued and unpaid interest thereon to, but excluding, the redemption date (subject to the right of the holders of notes on the relevant record date to receive interest due on an interest payment date that is on or prior to the redemption date).

(6) F IX NUMBERSI M ANDATORY R EDEMPTION . The Partnership is not required to make mandatory redemption or sinking fund payments with respect to the Notes. The Partnership and its Affiliates may at any time and from time to time purchase Notes in the open market, by tender offer, negotiated transactions or otherwise.

(7) R EPURCHASE AT THE O PTION OF H OLDER .

(a) Upon the occurrence of a Change of Control, the Partnership will be required to make an offer (a “ Change of Control Offer ”) to each Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes at a purchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to, but excluding, the date of purchase, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date (the “ Change of Control Payment ”). Within 30 days following any Change of Control, the Partnership will mail a notice to each Holder setting forth the procedures governing the Change of Control Offer as required by the Indenture.

(b) If the Net Proceeds exceed the aggregate amount within the applicable time period, such excess amount applied or invested as provided in Section Section 4.10(b) of the Indenture will constitute “ Excess Proceeds .” When the aggregate amount of Excess Proceeds exceeds $50.0 million, within five Business Days thereof, the Partnership will make an offer (an “ Asset Sale Offer ”) to all Holders of Notes then outstanding and all holders of other Indebtedness that is pari passu with the Notes containing provisions similar to those set forth in the Indenture with respect to offers to purchase, prepay or redeem with the proceeds of sales of assets to purchase, prepay or redeem the maximum principal amount of Notes and such other pari passu Indebtedness (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in connection therewith) that may be purchased, prepaid or redeemed out of the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount, plus accrued and unpaid interest, if any, to, but excluding, the date of purchase, prepayment or redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant interest payment date, and will be payable in cash. If any Excess Proceeds remain after consummation of an Asset Sale Offer, the Partnership may use those Excess Proceeds for any purpose not otherwise prohibited by the Indenture. If the aggregate principal amount of Notes and other pari passu Indebtedness tendered in (or required to be prepaid or redeemed in connection with) such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee will select the Notes and the Partnership will select such other pari passu Indebtedness to be purchased on a pro rata basis (except that any Notes represented by a note in global form will be selected by such method as DTC or its nominee or successor may require or, where such nominee or successor is the Trustee, a method that most nearly approximates pro rata selection as the Trustee

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deems fair and appropriate unless otherwise required by law), based on the amounts tendered or required to be prepaid or redeemed (with such adjustments as may be deemed appropriate by the Partnership so that only Notes in minimum denominations of $2,000, or an integral multiple of $1,000 in excess thereof, will be purchased).

(8) N OTICE OF R EDEMPTION . At least 30 days but not more than 60 days before a redemption date, the Partnership will mail or cause to be mailed, by first class mail, a notice of redemption to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of the Indenture pursuant to Articles 8 or 11 thereof. Notes and portions of Notes selected will be in amounts of $2,000 or whole multiples of $1,000 in excess thereof; except that if all of the Notes of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes held by such Holder shall be redeemed or purchased.

Any such redemption may, at the Partnership’s discretion, be subject to one or more conditions precedent, including any related Equity Offering or a Change of Control. In addition, if such redemption is subject to the satisfaction of one or more conditions precedent, the related notice shall describe each such condition, and if applicable, shall state that, in the Partnership’s discretion, the date of redemption may be delayed until such time as any or all such conditions shall be satisfied or waived (provided that in no event shall such date of redemption be delayed to a date later than 60 days after the date on which such notice was mailed), or such redemption or purchase may not occur and such notice may be rescinded in the event that any or all such conditions shall not have been satisfied or waived by the date of redemption, or by the date of redemption as so delayed.

(9) D ENOMINATIONS , T RANSFER , E XCHANGE . The Notes are in registered form in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as provided in the Indenture. The Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and the Partnership may require a Holder to pay any taxes and fees required by law or permitted by the Indenture. The Partnership need not exchange or register the transfer of any Note or portion of a Note selected for redemption, except for the unredeemed portion of any Note being redeemed in part. Also, the Partnership need not exchange or register the transfer of any Notes for a period of 15 days before a selection of Notes to be redeemed or during the period between a record date and the next succeeding Interest Payment Date.

(10) P ERSONS D EEMED O WNERS . The registered Holder of a Note may be treated as the owner of it for all purposes. Only registered Holders have rights under the Indenture.

(11) A MENDMENT , S UPPLEMENT AND W AIVER . Subject to certain exceptions, the Indenture, the Notes or the Note Guarantees may be amended or supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes (including Additional Notes, if any), voting as a single class, and any existing Default or Event of Default or compliance with any provision of the Indenture or the Notes or the Note Guarantees may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes (including Additional Notes, if any), voting as a single class. Without the consent of any Holder of Notes, the Indenture, the Notes or the Note Guarantees may be amended or supplemented in certain respects as provided in the Indenture.

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(12) D EFAULTS AND R EMEDIES . In the case of an Event of Default arising from certain events of bankruptcy or insolvency with respect to the Partnership, any Restricted Subsidiary of the Partnership that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Partnership that, taken together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately. Holders may not enforce the Indenture or the Notes except as provided in the Indenture.

(13) T RUSTEE D EALINGS WITH P ARTNERSHIP . The Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Partnership or its Affiliates, and may otherwise deal with the Partnership or its Affiliates, as if it were not the Trustee.

(14) N O R ECOURSE A GAINST O THERS . No director, officer, employee, incorporator or stockholder of the General Partner, Partnership or any Guarantor, as such, will have any liability for any obligations of the Partnership or the Guarantors under the Notes, the Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

(15) A UTHENTICATION . This Note will not be valid until authenticated by the manual signature of the Trustee or an authenticating agent.

(16) A BBREVIATIONS . Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors Act).

(17) CUSIP N UMBERS . Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Partnership has caused CUSIP numbers to be printed on the Notes, and the Trustee may use CUSIP numbers in notices of redemption as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption, and reliance may be placed only on the other identification numbers placed thereon.

(18) GOVERNING LAW. THE INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THE INDENTURE, THIS NOTE AND THE NOTE GUARANTEES WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

The Partnership will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to:

Hi-Crush Partners LP

1330 Post Oak Boulevard, Suite 600

Houston, Texas 77056

Facsimile No.: (713) 980-6202

Attention: General Counsel

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A SSIGNMENT F ORM

To assign this Note, fill in the form below:

(I) or (we) assign and transfer this Note to:                                                                                                                                                 

                                                     (Insert assignee’s legal name)

(Insert assignee’s soc. sec. or tax I.D. no.)

(Print or type assignee’s name, address and zip code)

and irrevocably appoint                                                                                                                                                                                                     

to transfer this Note on the books of the Partnership. The agent may substitute another to act for him.

Date:                                     

Signature Guarantee*:                                                              

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Option of Holder to Elect Purchase

If you want to elect to have this Note purchased by the Partnership pursuant to Section Section 4.10 or 4.13 of the Indenture, check the appropriate box below:

☐  Section Section 4.10             ☐  Section 4.13

If you want to elect to have only part of the Note purchased by the Partnership pursuant to Section Section 4.10 or Section 4.13 of the Indenture, state the amount you elect to have purchased:

$                                      

Date:                                     

Signature Guarantee*: _________________________

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

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EXHIBIT B

FORM OF CERTIFICATE OF TRANSFER

Hi-Crush Partners LP

1330 Post Oak Boulevard, Suite 600

Houston, Texas 77056

U.S. Bank National Association

8 Greenway Plaza, Suite 1100

Houston, Texas 77046-0892

Attention: Corporate Trust

Re: 9.500% Senior Notes due 2026

Reference is hereby made to the Indenture, dated as of August 1, 2018 (the “ Indenture ”), among Hi-Crush Partners LP, a Delaware limited partnership, as issuer (the “ Partnership ”), the Guarantors party thereto and U.S. Bank National Association, as trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture.

                    , (the “ Transferor ”) owns and proposes to transfer the Note[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $                     in such Note[s] or interests (the “ Transfer ”), to                      (the “ Transferee ”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

[CHECK ALL THAT APPLY]

1. ☐ Check if Transferee will take delivery of a beneficial interest in the 144A Global Note or a Restricted Definitive Note pursuant to Rule 144A . The Transfer is being effected pursuant to and in accordance with Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”), and, accordingly, the Transferor hereby further certifies that the beneficial interest or Definitive Note is being transferred to a Person that the Transferor reasonably believes is purchasing the beneficial interest or Definitive Note for its own account, or for one or more accounts with respect to which such Person exercises sole investment discretion, and such Person and each such account is a “qualified institutional buyer” within the meaning of Rule 144A in a transaction meeting the requirements of Rule 144A, and such Transfer is in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the 144A Global Note and/or the Restricted Definitive Note and in the Indenture and the Securities Act.

2. ☐ Check if Transferee will take delivery of a beneficial interest in the Regulation S Global Note or a Restricted Definitive Note pursuant to Regulation S . The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and, accordingly, the Transferor hereby further certifies that (i) the Transfer is not being made to a Person in the United States and (x) at the time the buy order was originated, the Transferee was outside the United States or such Transferor and any Person acting on its behalf reasonably believed and believes that the Transferee was outside the United States or (y) the transaction was executed in, on or through the facilities of a designated offshore securities market and neither such Transferor nor any Person acting on its behalf knows that the transaction was prearranged with a buyer in the United States, (ii) no directed selling efforts have been made in contravention of the requirements of Rule 903(b) or Rule 904(b) of Regulation S under the Securities Act, (iii) the transaction is not part of a plan or scheme to evade the registration requirements of the Securities

B-1

Act and (iv) if the proposed transfer is being made prior to the expiration of the Restricted Period, the transfer is not being made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Upon consummation of the proposed transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on Transfer enumerated in the Private Placement Legend printed on the Regulation S Global Note and/or the Restricted Definitive Note and in the Indenture and the Securities Act.

3. ¨ Check and complete if Transferee will take delivery of a beneficial interest in a Restricted Global Note or a Restricted Definitive Note pursuant to any provision of the Securities Act other than Rule 144A or Regulation S . The Transfer is being effected in compliance with the transfer restrictions applicable to beneficial interests in Restricted Global Notes and Restricted Definitive Notes and pursuant to and in accordance with the Securities Act and any applicable blue sky securities laws of any state of the United States, and accordingly the Transferor hereby further certifies that (check one):

(a) ¨ such Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act;

or

(b) ¨ such Transfer is being effected to the Partnership or a subsidiary thereof.

4. ¨ Check if Transferee will take delivery of a beneficial interest in an Unrestricted Global Note or of an Unrestricted Definitive Note .

(a) ¨ Check if Transfer is pursuant to Rule 144 . (i) The Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any state of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture.

(b) ¨ Check if Transfer is Pursuant to Regulation S . (i) The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any state of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture.

(c) ¨ Check if Transfer is Pursuant to Other Exemption . (i) The Transfer is being effected pursuant to and in compliance with an exemption from the registration requirements of the Securities Act other than Rule 144, Rule 903 or Rule 904 and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any State of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will not be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes or Restricted Definitive Notes and in the Indenture.

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This certificate and the statements contained herein are made for your benefit and the benefit of the Partnership.

Dated: _______________________

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ANNEX A TO CERTIFICATE OF TRANSFER

[CHECK ONE OF (a) OR (b)]

[CHECK ONE]

in accordance with the terms of the Indenture.

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EXHIBIT C

FORM OF CERTIFICATE OF EXCHANGE

Hi-Crush Partners LP

1330 Post Oak Boulevard, Suite 600

Houston, Texas 77056

U.S. Bank National Association

8 Greenway Plaza, Suite 1100

Houston, Texas 77046-0892

Attention: Corporate Trust

Re: 9.500% Senior Notes due 2026

(CUSIP                      )

Reference is hereby made to the Indenture, dated as of August 1, 2018 (the “ Indenture ”), among Hi-Crush Partners LP, a Delaware limited partnership, as issuer (the “ Partnership ”), the Guarantors party thereto and U.S. Bank National Association, as trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture.

                    , (the “ Owner ”) owns and proposes to exchange the Note[s] or interest in such Note[s] specified herein, in the principal amount of $                     in such Note[s] or interests (the “ Exchange ”). In connection with the Exchange, the Owner hereby certifies that:

1. Exchange of Restricted Definitive Notes or Beneficial Interests in a Restricted Global Note for Unrestricted Definitive Notes or Beneficial Interests in an Unrestricted Global Note

(a) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to beneficial interest in an Unrestricted Global Note . In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for a beneficial interest in an Unrestricted Global Note in an equal principal amount, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Global Notes and pursuant to and in accordance with the Securities Act of 1933, as amended (the “ Securities Act ”), (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the beneficial interest in an Unrestricted Global Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

(b) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to Unrestricted Definitive Note . In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

(c) ¨ Check if Exchange is from Restricted Definitive Note to beneficial interest in an Unrestricted Global Note . In connection with the Owner’s Exchange of a Restricted Definitive Note for a beneficial interest in an Unrestricted Global Note, the Owner hereby certifies (i) the beneficial interest is

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being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to Restricted Definitive Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the beneficial interest is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

(d) ¨ Check if Exchange is from Restricted Definitive Note to Unrestricted Definitive Note . In connection with the Owner’s Exchange of a Restricted Definitive Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Unrestricted Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to Restricted Definitive Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the Unrestricted Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

2. Exchange of Restricted Definitive Notes or Beneficial Interests in Restricted Global Notes for Restricted Definitive Notes or Beneficial Interests in Restricted Global Notes

(a) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to Restricted Definitive Note. In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for a Restricted Definitive Note with an equal principal amount, the Owner hereby certifies that the Restricted Definitive Note is being acquired for the Owner’s own account without transfer. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the Restricted Definitive Note issued will continue to be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Definitive Note and in the Indenture and the Securities Act.

(b) ¨ Check if Exchange is from Restricted Definitive Note to beneficial interest in a Restricted Global Note . In connection with the Exchange of the Owner’s Restricted Definitive Note for a beneficial interest in the [CHECK ONE] ¨ 144A Global Note, ¨ Regulation S Global Note with an equal principal amount, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer and (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with the Securities Act, and in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the beneficial interest issued will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the relevant Restricted Global Note and in the Indenture and the Securities Act.

This certificate and the statements contained herein are made for your benefit and the benefit of the Partnership.

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Dated:                     

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EXHIBIT D

[FORM OF SUPPLEMENTAL INDENTURE

TO BE DELIVERED BY SUBSEQUENT GUARANTORS]

S UPPLEMENTAL I NDENTURE (this “ Supplemental Indenture ”), dated as of                     , among                      (the “ Guaranteeing Subsidiary ”), a subsidiary of Hi-Crush Partners LP (or its permitted successor), a Delaware limited partnership (the “ Partnership ”), the Partnership, the other Guarantors (as defined in the Indenture referred to herein) and U.S. Bank National Association, as trustee under the Indenture referred to below (the “ Trustee ”).

W I T N E S S E T H

WHEREAS, the Partnership has heretofore executed and delivered to the Trustee an indenture (the “ Indenture ”), dated as of August 1, 2018 providing for the issuance of 9.500% Senior Notes due 2026 (the “ Notes ”);

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Partnership’s Obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “ Note Guarantee ”); and

WHEREAS, pursuant to Section Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

1. C APITALIZED T ERMS . Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. A GREEMENT TO G UARANTEE . The Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Note Guarantee and in the Indenture including but not limited to Article 10 thereof.

4. N O R ECOURSE A GAINST O THERS . No director, officer, employee, incorporator or stockholder of the General Partner, Partnership or any Guarantor, as such, will have any liability for any obligations of the Partnership or the Guarantors under the Notes, this Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

5. NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

6. C OUNTERPARTS . The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

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7. E FFECT OF H EADINGS . The Section headings herein are for convenience only and shall not affect the construction hereof.

8. T HE T RUSTEE . The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiary and the Partnership.

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

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