Exhibit 3.1

AMENDED AND RESTATED

expressed herein and in the resolution or resolutions providing for the issue of such class or series adopted by the Board as hereafter prescribed (a “ Preferred Stock Designation ”).

          (b) Authority is hereby expressly granted to and vested in the Board to authorize the issuance of the Preferred Stock from time to time in one or more classes or series, and with respect to each class or series of the Preferred Stock, to fix and state by the resolution or resolutions from time to time adopted providing for the issuance thereof the designation and the powers, preferences, rights, qualifications, limitations and restrictions relating to each class or series of the Preferred Stock, including, but not limited to, the following:

               (i) whether or not the class or series is to have voting rights, full, special or limited, or is to be without voting rights, and whether or not such class or series is to be entitled to vote as a separate class either alone or together with the holders of one or more other classes or series of stock;

               (ii) the number of shares to constitute the class or series and the designations thereof;

               (iii) the preferences, and relative, participating, optional or other special rights, if any, and the qualifications, limitations or restrictions thereof, if any, with respect to any class or series;

               (iv) whether or not the shares of any class or series shall be redeemable at the option of the Corporation or the holders thereof or upon the happening of any specified event, and, if redeemable, the redemption price or prices (which may be payable in the form of cash, notes, securities or other property), and the time or times at which, and the terms and conditions upon which, such shares shall be redeemable and the manner of redemption;

               (v) whether or not the shares of a class or series shall be subject to the operation of retirement or sinking funds to be applied to the purchase or redemption of such shares for retirement, and, if such retirement or sinking fund or funds are to be established, the annual amount thereof, and the terms and provisions relative to the operation thereof;

               (vi) the dividend rate, whether dividends are payable in cash, stock of the Corporation or other property, the conditions upon which and the times when such dividends are payable, the preference to or the relation to the payment of dividends payable on any other class or classes or series of stock, whether or not such dividends shall be cumulative or noncumulative, and if cumulative, the date or dates from which such dividends shall accumulate;

               (vii) the preferences, if any, and the amounts thereof which the holders of any class or series thereof shall be entitled to receive upon the voluntary or involuntary dissolution of, or upon any distribution of the assets of, the Corporation;

               (viii) whether or not the shares of any class or series, at the option of the Corporation or the holder thereof or upon the happening of any specified event, shall be convertible into or exchangeable for, the shares of any other class or classes or of any other series of the same or any other class or classes of stock, securities or other property of the Corporation and the conversion price or prices or ratio or ratios or the rate or rates at which such

exchange may be made, with such adjustments, if any, as shall be stated and expressed or provided for in such resolution or resolutions; and

               (ix) such other special rights and protective provisions with respect to any class or series as may to the Board seem advisable.

          (c) The shares of each class or series of the Preferred Stock may vary from the shares of any other class or series thereof in any or all of the foregoing respects. The Board may increase the number of shares of the Preferred Stock designated for any existing class or series by a resolution adding to such class or series authorized and unissued shares of the Preferred Stock not designated for any other class or series. The Board may decrease the number of shares of the Preferred Stock designated for any existing class or series by a resolution subtracting from such class or series authorized and unissued shares of the Preferred Stock designated for such existing class or series, and the shares so subtracted shall become authorized, unissued, and undesignated shares of the Preferred Stock.

     2. Provisions Relating to the Common Stock.

          (a) Each share of Common Stock of the Corporation shall have identical rights and privileges in every respect. The Common Stock shall be subject to the express terms of the Preferred Stock and any series thereof. Except as may otherwise be provided in this Certificate of Incorporation, in a Preferred Stock Designation or by applicable law, the holders of shares of Common Stock shall be entitled to one vote for each such share upon all questions presented to the stockholders, the holders of shares of Common Stock shall have the exclusive right to vote for the election of directors and for all other purposes, and the holders of Preferred Stock shall not be entitled to vote at or receive notice of any meeting of stockholders.

          (b) Notwithstanding the foregoing, except as otherwise required by law, holders of Common Stock, as such, shall not be entitled to vote on any amendment to this Certificate of Incorporation (including any certificate of designations relating to any series of Preferred Stock) that relates solely to the terms of one or more outstanding series of Preferred Stock if the holders of such affected series are entitled, either separately or together with the holders of one or more other such series, to vote thereon pursuant to this Certificate of Incorporation (including any certificate of designations relating to any series of Preferred Stock) or pursuant to the DGCL.

          (c) Subject to the prior rights and preferences, if any, applicable to shares of the Preferred Stock or any series thereof, the holders of shares of the Common Stock shall be entitled to receive such dividends (payable in cash, stock or otherwise) as may be declared thereon by the Board at any time and from time to time out of any funds of the Corporation legally available therefor.

          (d) In the event of any voluntary or involuntary liquidation, dissolution or winding-up of the Corporation, after distribution in full of the preferential amounts, if any, to be distributed to the holders of shares of the Preferred Stock or any class or series thereof, the holders of shares of the Common Stock shall be entitled to receive all of the remaining assets of the Corporation available for distribution to its stockholders, ratably in proportion to the number

of shares of the Common Stock held by them. A liquidation, dissolution or winding-up of the Corporation, as such terms are used in this Paragraph (d), shall not be deemed to be occasioned by or to include any consolidation or merger of the Corporation with or into any other corporation or corporations or other entity or a sale, lease, exchange or conveyance of all or a part of the assets of the Corporation.

     3. General.

          (a) Subject to the foregoing provisions of this Certificate of Incorporation and any then-existing Preferred Stock Designation, the Corporation may issue shares of its Preferred Stock and Common Stock from time to time for such consideration (not less than the par value thereof) as may be fixed by the Board, which is expressly authorized to fix the same in its absolute and uncontrolled discretion subject to the foregoing conditions. Shares so issued for which the consideration shall have been paid or delivered to the Corporation shall be deemed fully paid stock and shall not be liable to any further call or assessment thereon, and the holders of such shares shall not be liable for any further payments in respect of such shares.

          (b) The Corporation shall have authority to create and issue rights and options entitling their holders to purchase shares of the Corporation’s capital stock of any class or series or other securities of the Corporation, and such rights and options shall be evidenced by instrument(s) approved by the Board. The Board shall be empowered to set the exercise price, duration, times for exercise, and other terms of such options or rights; provided, however , that the consideration to be received for any shares of capital stock subject thereto shall not be less than the par value thereof.

          (c) The Corporation shall be entitled to treat the person in whose name any share of its stock is registered as the owner thereof for all purposes and shall not be bound to recognize any equitable or other claim to, or interest in, such share on the part of any other person, whether or not the Corporation shall have notice thereof, except as expressly provided by applicable law.

     FIFTH: The number of directors which shall constitute the entire Board shall be fixed from time to time by a majority of the directors then in office and shall be divided into three classes as determined by a resolution of the Board: Class I, Class II and Class III. Each director shall serve for a term ending on the third annual meeting following the annual meeting of stockholders at which such director was elected; provided, however, that the directors first elected to Class I shall serve for a term expiring at the annual meeting of stockholders next following the end of the calendar year 2010, the directors first elected to Class II shall serve for a term expiring at the annual meeting of stockholders next following the end of the calendar year 2011, and the directors first elected to Class III shall serve for a term expiring at the annual meeting of stockholders next following the end of the calendar year 2012. Each director shall hold office until the annual meeting of stockholders at which such director’s term expires and, the foregoing notwithstanding, shall serve until his successor shall have been duly elected and qualified or until his earlier death, resignation or removal.

     At such annual election, the directors chosen to succeed those whose terms then expire shall be of the same class as the directors they succeed, unless, by reason of any intervening

changes in the authorized number of directors, the Board shall have designated one or more directorships whose terms then expire as directorships of another class in order to more nearly achieve equality of number of directors among the classes.

     The number of directors of the Corporation shall be as specified in, or determined in the manner provided in, the bylaws of the Corporation. Unless and except to the extent that the bylaws of the Corporation so provide, the election of directors need not be by written ballot. In the event of any changes in the authorized number of directors, each director then continuing to serve shall nevertheless continue as a director of the class of which he or she is a member until the expiration of his current term, or his prior death, resignation or removal. The Board shall specify the class to which a newly created directorship shall be allocated.

     SIXTH: Special meetings of stockholders of the Corporation may be called only by the Chairman of the Board, the Chief Executive Officer or the Board pursuant to a resolution adopted by a majority of the total number of directors which the Corporation would have if there were no vacancies. The person or persons authorized to call special meetings of the Board may fix the place and time of the meetings.

     SEVENTH: In furtherance of, and not in limitation of, the powers conferred by the laws of the State of Delaware, the Board is expressly authorized to adopt, amend or repeal the bylaws of the Corporation by a majority vote of the total number of directors which the Corporation would have if there were no vacancies, subject to the power of the stockholders of the Corporation to alter or repeal any bylaw whether adopted by them or otherwise; provided, however , that, the provisions of this Seventh Article notwithstanding, bylaws shall not be adopted, altered, amended or repealed by the stockholders of the Corporation except by the vote of holders of not less than 66 ² / 3 % in voting power of the then-outstanding shares of stock entitled to vote generally in the election of directors (considered for this purpose as one class).

     EIGHTH: Whenever a compromise or arrangement is proposed between the Corporation and its creditors or any class of them and/or between the Corporation and its stockholders or any class of them, any court of equitable jurisdiction within the State of Delaware may, on the application in a summary way of the Corporation or of any creditor or stockholder thereof or on the application of any receiver or receivers appointed for the Corporation under the provisions of Section 291 of Title 8 of the Delaware Code or on the application of trustees in dissolution or of any receiver or receivers appointed for the Corporation under the provisions of Section 279 of Title 8 of the Delaware Code order a meeting of the creditors or class of creditors, and/or of the stockholders or class of stockholders of the Corporation, as the case may be, to be summoned in such manner as the said court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, and/or of the stockholders or class of stockholders of the Corporation, as the case may be, agree to any compromise or arrangement and to any reorganization of the Corporation as a consequence of such compromise or arrangement, the said compromise or arrangement and the said reorganization shall, if sanctioned by the court to which the said application has been made, be binding on all the creditors or class of creditors, and/or on all the stockholders or class of stockholders, of the Corporation, as the case may be, and also on the Corporation.

     NINTH: No director of the Corporation shall be liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of the DGCL, or (iv) for any transaction from which the director derived an improper personal benefit. In addition to the circumstances in which a director of the Corporation is not personally liable as set forth in the preceding sentence, a director of the Corporation shall not be liable to the fullest extent permitted by any amendment to the DGCL hereafter enacted that further limits the liability of a director.

     The Corporation shall indemnify any person who was, is or is threatened to be made a party to a proceeding (as hereinafter defined) by reason of the fact that he or she (i) is or was a director or officer of the Corporation or (ii) while a director or officer of the Corporation, is or was serving at the request of the Corporation as a director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise (each, a “ Subject Enterprise ”) to the fullest extent permitted under the DGCL, as the same exists or may hereafter be amended. Such right shall be a contract right and as such shall inure to the benefit of any director or officer who is elected and accepts the position of director or officer of the Corporation or elects to continue to serve as a director or officer of the Corporation while this Article Ninth is in effect.

     In the event that any indemnified person has indemnification rights against, or otherwise has rights to receive indemnification from, one or more Subject Enterprises with respect to or on account of a proceeding giving rise to similar indemnification obligations on the part of the Corporation to such indemnified person, (i) the indemnification rights contained in this Certificate of Incorporation shall be subordinate to any indemnification rights provided by such Subject Enterprise(s) and (ii) such indemnified person shall be entitled to indemnification from the Corporation only to the extent such Subject Enterprise(s) fail to provide or are not otherwise obligated to provide indemnification for such proceeding. In the event the Corporation shall be obligated to indemnify any indemnified person pursuant to the foregoing clause (ii), the Corporation shall be subrogated to all rights of such indemnified person against, or otherwise to receive indemnification from, each Subject Enterprise with respect to or on account of the proceeding giving rise to the Corporation’s obligation to indemnify such indemnified person pursuant to the foregoing clause (ii), including without limitation any and all rights of such indemnified person to indemnification from such Subject Enterprise under the articles or certificate of incorporation, bylaws, regulations, limited liability company agreement, partnership agreement or other organizational documents of such Subject Enterprise or any agreement between such indemnified person and such Subject Enterprise.

     Any repeal or amendment of this Article Ninth shall be prospective only and shall not limit the rights of any such director or officer or the obligations of the Corporation with respect to any claim arising from or related to the services of such director or officer in any of the foregoing capacities prior to any such repeal or amendment to this Article Ninth. Such right shall include the right to be paid by the Corporation expenses (including without limitation attorneys’ fees) actually and reasonably incurred by him in defending any such proceeding in advance of its final disposition to the maximum extent permitted under the DGCL, as the same

exists or may hereafter be amended. If a claim for indemnification or advancement of expenses hereunder is not paid in full by the Corporation within sixty (60) days after a written claim has been received by the Corporation, the claimant may at any time thereafter bring suit against the Corporation to recover the unpaid amount of the claim, and if successful in whole or in part, the claimant shall also be entitled to be paid the expenses of prosecuting such claim. It shall be a defense to any such action that such indemnification or advancement of costs of defense is not permitted under the DGCL, but the burden of proving such defense shall be on the Corporation. Neither the failure of the Corporation (including its Board or any committee thereof, independent legal counsel or stockholders) to have made its determination prior to the commencement of such action that indemnification of, or advancement of costs of defense to, the claimant is permissible in the circumstances nor any actual determination by the Corporation (including its Board or any committee thereof, independent legal counsel or stockholders) that such indemnification or advancement is not permissible shall be a defense to the action or create a presumption that such indemnification or advance is not permissible. In the event of the death of any person having a right of indemnification under the foregoing provisions, such right shall inure to the benefit of his or her heirs, executors, administrators and personal representatives. The rights conferred above shall not be exclusive of any other right which any person may have or hereafter acquire under any statute, bylaw, resolution of stockholders or directors, agreement or otherwise.

     The Corporation may also indemnify any employee or agent of the corporation or a Subject Enterprise to the fullest extent permitted by law.

     As used herein, the term “proceeding” means any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative, arbitrative or investigative (other than an action by or in the right of the Corporation), any appeal in such an action, suit or proceeding, any inquiry or investigation that could lead to such an action, suit or proceeding.

     Any amendment, repeal or modification of this Ninth Article shall be prospective only and shall not affect any limitation on liability of a director or officer for acts or omissions occurring prior to the date of such amendment, repeal or modification.

     TENTH: To the fullest extent permitted by applicable law, the Corporation, on behalf of itself and its subsidiaries, renounces any interest or expectancy of the Corporation and its subsidiaries in any business opportunity, transaction or other matter in which Warburg Pincus LLC or any private fund that it manages or advises (the “ Sponsor ”) (other than the Corporation and its subsidiaries), their officers, directors, partners, employees or other agents who serve as a director of the Corporation, Merrill Lynch Ventures L.P. 2001, its affiliates (other than the Corporation and its subsidiaries), and any portfolio company in which such entities or persons has an equity interest (other than the Corporation and its subsidiaries) (each, a “ Specified Party ”) participates or desires or seeks to participate in and that involves any aspect of the energy business or industry, unless any such business opportunity, transaction or matter is (a) offered to such Specified Party in its capacity as a director of the Corporation and with respect to which no other Specified Party (other than a director of the Corporation) independently receives notice or otherwise identifies such business opportunity, transaction or matter or (b) identified by such Specified Party solely through the disclosure of information by the Corporation or on the Corporation’s behalf, even if the opportunity is one that the Corporation or its subsidiaries might reasonably be deemed to have pursued or had the ability or desire to pursue if granted the

opportunity to do so and each such Specified Party shall have no duty to communicate or offer such business opportunity to the Corporation and, to the fullest extent permitted by applicable law, shall not be liable to the Corporation or any of its subsidiaries or any stockholder for breach of any fiduciary or other duty, as a director or officer or controlling stockholder or otherwise, by reason of the fact that such Specified Party pursues or acquires such business opportunity, directs such business opportunity to another person or fails to present such business opportunity, or information regarding such business opportunity, to the Corporation or its subsidiaries.

     Neither the amendment nor repeal of this Tenth Article, nor the adoption of any provision of this Certificate of Incorporation or the bylaws of the Corporation, nor, to the fullest extent permitted by Delaware Law, any modification of law, shall adversely affect any right or protection of any person granted pursuant hereto existing at, or arising out of or related to any event, act or omission that occurred prior to, the time of such amendment, repeal, adoption or modification (regardless of when any proceeding (or part thereof) relating to such event, act or omission arises or is first threatened, commenced or completed).

     If any provision or provisions of this Tenth Article shall be held to be invalid, illegal or unenforceable as applied to any circumstance for any reason whatsoever: (a) the validity, legality and enforceability of such provisions in any other circumstance and of the remaining provisions of this Tenth Article (including, without limitation, each portion of any paragraph of this Tenth Article containing any such provision held to be invalid, illegal or unenforceable that is not itself held to be invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and (b) to the fullest extent possible, the provisions of this Tenth Article (including, without limitation, each such portion of any paragraph of this Tenth Article containing any such provision held to be invalid, illegal or unenforceable) shall be construed so as to permit the Corporation to protect its directors, officers, employees and agents from personal liability in respect of their good faith service to or for the benefit of the Corporation to the fullest extent permitted by law.

     This Tenth Article shall not limit any protections or defenses available to, or indemnification rights of, any director or officer of the Corporation under this Certificate of Incorporation or applicable law. Any person or entity purchasing or otherwise acquiring any interest in any securities of the Corporation shall be deemed to have notice of and to have consented to the provisions of this Tenth Article.

     ELEVENTH: Subject to the rights of holders of any series of Preferred Stock with respect to such series of Preferred Stock, any action required or permitted to be taken by the stockholders of the Corporation must be taken at a duly held annual or special meeting of stockholders and may not be taken by any consent in writing of such stockholders.

     TWELFTH: The Corporation shall have the right, subject to any express provisions or restrictions contained in this Certificate of Incorporation or bylaws of the Corporation, from time to time, to amend this Certificate of Incorporation or any provision hereof in any manner now or hereafter provided by law, and all rights and powers of any kind conferred upon a director or stockholder of the Corporation by this Certificate of Incorporation or any amendment hereof are subject to such right of the Corporation.

     THIRTEENTH: The Corporation elects not to by governed by 8 Del. C. § 203 (the “ Delaware Takeover Statute ”), as now in effect or hereafter amended, or any successor statute thereto; provided , however , that the Corporation will be governed by the Delaware Takeover Statute at, and subsequent to, such time as the Sponsor, its direct and indirect transferees of Common Stock Owned (such term as used herein to have the meaning ascribed to such term in the Delaware Takeover Statute) by the Sponsor as of the filing of this Amended and Restated Certificate of Incorporation (the “ Sponsor Stock ”) (other than transferees that acquire Sponsor Stock pursuant to (i) an underwritten public offering, (ii) a sale under Rule 144 under the Securities Act of 1933, as amended, or (iii) a public distribution to more than 20 persons or entities) and their respective Affiliates and successors, as well as any “group” (within the meaning of Rule 13d-5 of the Exchange Act) that includes any of the foregoing persons or entities, no longer Own Sponsor Stock that represents 15% or more of the outstanding shares of Common Stock (the “ Ownership Condition Trigger ”); provided, further, however , that notwithstanding the foregoing the Ownership Condition Trigger shall in any event be deemed satisfied and the Corporation will be governed by the Delaware Takeover Statute if and when (i) the Sponsor ceases to Own Sponsor Stock that represents 15% or more of the outstanding Common Stock and (ii) no person, entity or group has filed a document (on or before the tenth day following the date that the Sponsor ceases to Own Sponsor Stock that represents 15% or more of the outstanding Common Stock) pursuant to the Exchange Act that includes a statement that such person, entity or group Owns Sponsor Stock that represents 15% or more of the outstanding Common Stock

     FOURTEENTH: Notwithstanding any other provision of this Certificate of Incorporation or the bylaws of the Corporation (and in addition to any other vote that may be required by law, this Certificate of Incorporation or the bylaws), the affirmative vote of the holders of at least 66 ² / 3 % in voting power of the outstanding shares of stock of the Corporation entitled to vote generally in the election of directors (considered for this purpose as one class) shall be required to amend, alter or repeal any provision of this Certificate of Incorporation.

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     IN WITNESS WHEREOF, the undersigned has executed this Amended and Restated Certificate of Incorporation as of this      day of November, 2010.

Exhibit 3.2

AMENDED AND RESTATED

     SECTION 2.3. Place of Meeting . The Board of Directors, the Chairman of the Board or the Chief Executive Officer, as the case may be, may designate the place of meeting for any annual meeting or for any special meeting of the stockholders called by the Board of Directors, the Chairman of the Board or the Chief Executive Officer. If no designation is so made, the place of meeting shall be the principal executive offices of the Corporation.

     SECTION 2.4. Notice of Meeting . Written or printed notice, stating the place, day and hour of the meeting and the purpose or purposes for which the meeting is called, shall be delivered by the Corporation not less than 10 days nor more than 60 days before the date of the meeting, in a manner pursuant to Section 6.8 hereof, to each stockholder of record entitled to vote at such meeting. If mailed, such notice shall be deemed to be delivered when deposited in the United States mail with postage thereon prepaid, addressed to the stockholder at the stockholder’s address as it appears on the stock transfer books of the Corporation. Such further notice shall be given as may be required by law. Only such business shall be conducted at a special meeting of stockholders as shall have been brought before the meeting pursuant to the Corporation’s notice of meeting. Meetings may be held without notice if all stockholders entitled to vote are present, or if notice is waived by those not present in accordance with Section 6.4 of these Bylaws. Any previously scheduled meeting of the stockholders may be postponed, and (unless the Certificate of Incorporation otherwise provides) any special meeting of the stockholders may be cancelled, by resolution of the Board of Directors upon public notice given prior to the date previously scheduled for such meeting of stockholders.

     SECTION 2.5. Quorum and Adjournment . Except as otherwise provided by law or by the Certificate of Incorporation, the holders of a majority of the outstanding shares of the Corporation entitled to vote generally in the election of directors (the “ Voting Stock ”), represented in person or by proxy, shall constitute a quorum at a meeting of stockholders, except that when specified business is to be voted on by a class or series of stock voting as a class, the holders of a majority of the shares of such class or series shall constitute a quorum of such class or series for the transaction of such business. The Chairman of the meeting or a majority of the shares so represented may adjourn the meeting from time to time, whether or not there is such a quorum. No notice of the time and place of adjourned meetings need be given except as required by law. At the adjourned meeting, the Corporation may transact any business which might have been transacted at the original meeting. If the adjournment is for more than 30 days, or after the adjournment a new record date is fixed for the adjourned meeting, a notice of the adjourned meeting shall be given to each stockholder of record entitled to notice of such adjourned meeting. The stockholders present at a duly called meeting at which a quorum is present may continue to transact business until adjournment, notwithstanding the withdrawal of enough stockholders to leave less than a quorum.

     SECTION 2.6. Proxies . At all meetings of stockholders, a stockholder may vote by proxy executed in writing (or by any means of electronic communication permitted by law) by the stockholder, or by his duly authorized attorney in fact. Any copy, facsimile transmission or other reliable reproduction of the writing or transmission created pursuant to this section may be substituted or used in lieu of the original writing or transmission for any and all purposes for which the original writing or transmission could be used, provided that such copy, facsimile

transmission or other reproduction shall be a complete reproduction of the entire original writing or transmission.

     SECTION 2.7. Notice of Stockholder Business and Nominations .

          (A) Annual Meetings of Stockholders . (1) Nominations of persons for election to the Board of Directors and the proposal of other business to be considered by the stockholders may be made at an annual meeting of stockholders (a) pursuant to the Corporation’s notice of meeting (or any supplement thereto), (b) by or at the direction of the Board of Directors or (c) by any stockholder of the Corporation who (i) was a stockholder of record at the time of giving of notice provided for in this Bylaw and at the time of the annual meeting, (ii) is entitled to vote at the meeting and (iii) complies with the notice procedures set forth in this Bylaw as to such business or nomination; clause 1(c) of this Section 2.7(A) shall be the exclusive means for a stockholder to make nominations or submit other business (other than matters properly brought under Rule 14a-8 under the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), and included in the Corporation’s notice of meeting) before an annual meeting of the stockholders.

               (2) Without qualification, for any nominations or any other business to be properly brought before an annual meeting by a stockholder pursuant to Section 2.7(A)(1)(c) of this Bylaw, the stockholder must have given timely notice thereof in writing to the Secretary and such other business must otherwise be a proper matter for stockholder action. To be timely, a stockholder’s notice shall be delivered to the Secretary at the principal executive offices of the Corporation not earlier than the close of business on the 120 ^th day and not later than the close of business on the 90 ^th day prior to the first anniversary of the preceding year’s annual meeting; provided , however , that in the event that the date of the annual meeting is more than 30 days before or more than 60 days after such anniversary date, notice by the stockholder to be timely must be so delivered not earlier than the close of business on the 120 ^th day prior to the date of such annual meeting and not later than the close of business on the later of the 90 ^th day prior to such annual meeting or, if the first public announcement of the date of such annual meeting is less than 100 days prior to the date of such annual meeting, the 10 ^th day following the day on which public announcement of the date of such meeting is first made by the Corporation. In no event shall any adjournment or postponement of an annual meeting or the announcement thereof commence a new time period for the giving of a stockholder’s notice as described above. To be in proper form, a stockholder’s notice (whether given pursuant to this Section 2.7(A)(2) or Section 2.7(B)) to the Secretary must:

               (a) set forth, as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination or proposal is made (i) the name and address of such stockholder, as they appear on the Corporation’s books, and of such beneficial owner, if any, (ii) (A) the class or series and number of shares of the Corporation which are, directly or indirectly, owned beneficially and of record by such stockholder and such beneficial owner, (B) any option, warrant, convertible security, stock appreciation right, or similar right with an exercise or conversion privilege or a settlement payment or mechanism at a price related to any class or series of shares of the Corporation or with a value derived in whole or in part from the value of any class or

series of shares of the Corporation, whether or not such instrument or right shall be subject to settlement in the underlying class or series of capital stock of the Corporation or otherwise (a “ Derivative Instrument ”) directly or indirectly owned beneficially by such stockholder and any other direct or indirect opportunity to profit or share in any profit derived from any increase or decrease in the value of shares of the Corporation, (C) a description of any proxy, contract, arrangement, understanding, or relationship pursuant to which such stockholder has a right to vote any shares of any security of the Company, (D) any short interest in any security of the Company (for purposes of this Bylaw a person shall be deemed to have a short interest in a security if such person directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has the opportunity to profit or share in any profit derived from any decrease in the value of the subject security), (E) any rights to dividends on the shares of the Corporation owned beneficially by such stockholder that are separated or separable from the underlying shares of the Corporation, (F) any proportionate interest in shares of the Corporation or Derivative Instruments held, directly or indirectly, by a general or limited partnership in which such stockholder is a general partner or, directly or indirectly, beneficially owns an interest in a general partner and (G) any performance-related fees (other than an asset-based fee) that such stockholder is entitled to based on any increase or decrease in the value of shares of the Corporation or Derivative Instruments, if any, as of the date of such notice, including without limitation any such interests held by members of such stockholder’s immediate family sharing the same household (which information shall be supplemented by such stockholder and beneficial owner, if any, not later than 10 days after the record date for the meeting to disclose such ownership as of the record date), (iii) any other information relating to such stockholder and beneficial owner, if any, that would be required to be disclosed in a proxy statement or other filings required to be made in connection with solicitations of proxies for, as applicable, the proposal and/or for the election of directors in a contested election pursuant to Section 14 of the Exchange Act and the rules and regulations promulgated thereunder, (iv) a representation that the stockholder was a holder of record of stock of the Corporation entitled to vote at such meeting and intends to appear in person or by proxy at the meeting to bring such nomination or other business before the meeting, and (v) a representation as to whether such stockholder or any such beneficial owner intends or is part of a group that intends to (x) deliver a proxy statement and/or form of proxy to holders of at least the percentage of the voting power of the Corporation’s outstanding capital stock required to approve or adopt the proposal or to elect each such nominee and/or (y) otherwise to solicit proxies from stockholders in support of such proposal or nomination. If requested by the Corporation, the information required under clauses (a)(i) and (ii) of the preceding sentence of this Section 2.7 shall be supplemented by such stockholder and any such beneficial owner not later than 10 days after the record date for notice of the meeting to disclose such information as of such record date;

               (b) if the notice relates to any business other than a nomination of a director or directors that the stockholder proposes to bring before the meeting, set forth (i) a brief description of the business desired to be brought before the meeting, the reasons for conducting such business at the meeting and any material interest of such stockholder and beneficial owner, if any, in such business and (ii) a description of all

agreements, arrangements and understandings between such stockholder and beneficial owner, if any, and any other person or persons (including their names) in connection with the proposal of such business by such stockholder;

               (c) set forth, as to each person, if any, whom the stockholder proposes to nominate for election or reelection to the Board of Directors (i) all information relating to such person that would be required to be disclosed in a proxy statement or other filings required to be made in connection with solicitations of proxies for election of directors in a contested election pursuant to Section 14 of the Exchange Act and the rules and regulations promulgated thereunder (including such person’s written consent to being named in the proxy statement as a nominee and to serving as a director if elected) and (ii) a description of all direct and indirect compensation and other material monetary agreements, arrangements and understandings during the past three years, and any other material relationships, between or among such stockholder and beneficial owner, if any, and their respective affiliates and associates, or others acting in concert therewith, on the one hand, and each proposed nominee, and his or her respective affiliates and associates, or others acting in concert therewith, on the other hand, including, without limitation all information that would be required to be disclosed pursuant to Rule 404 promulgated under Regulation S-K if the stockholder making the nomination and any beneficial owner on whose behalf the nomination is made, if any, or any affiliate or associate thereof or person acting in concert therewith, were the “registrant” for purposes of such rule and the nominee were a director or executive officer of such registrant; and

               (d) with respect to each nominee for election or reelection to the Board of Directors, include a completed and signed questionnaire, representation and agreement required by Section 2.8 of this Bylaw. The Corporation may require any proposed nominee to furnish such other information as may reasonably be required by the Corporation to determine the eligibility of such proposed nominee to serve as an independent director of the Corporation or that could be material to a reasonable stockholder’s understanding of the independence, or lack thereof, of such nominee.

               (3) Notwithstanding anything in the second sentence of Section 2.7(A)(2) of this Bylaw to the contrary, in the event that the number of directors to be elected to the Board of Directors of the Corporation is increased and there is no public announcement by the Corporation naming all of the nominees for director or specifying the size of the increased Board of Directors at least 100 days prior to the first anniversary of the preceding year’s annual meeting, a stockholder’s notice required by this Bylaw shall also be considered timely, but only with respect to nominees for any new positions created by such increase, if it shall be delivered to the Secretary at the principal executive offices of the Corporation not later than the close of business on the 10 ^th day following the day on which such public announcement is first made by the Corporation.

          (B) Special Meetings of Stockholders . Only such business shall be conducted at a special meeting of stockholders as shall have been brought before the meeting pursuant to the Corporation’s notice of meeting. Nominations of persons for election to the Board of Directors may be made at a special meeting of stockholders at which directors are to be elected

pursuant to the Corporation’s notice of meeting (a) by or at the direction of the Board of Directors or (b) provided , that the Board of Directors has determined that directors shall be elected at such meeting, by any stockholder of the Corporation who is a stockholder of record at the time of giving of notice provided for in this Bylaw and at the time of the special meeting, (ii) is entitled to vote at the meeting, and (iii) complies with the notice procedures set forth in this Bylaw. In the event a special meeting of stockholders is called for the purpose of electing one or more directors to the Board of Directors, any such stockholder may nominate a person or persons (as the case may be), for election to such position(s) as specified in the Corporation’s notice of meeting, if the stockholder’s notice required by Section 2.7(A)(2) of this Bylaw with respect to any nomination (including the completed and signed questionnaire, representation and agreement required by Section 2.8 of this Bylaw) shall be delivered to the Secretary at the principal executive offices of the Corporation not earlier than the close of business on the 120 ^th day prior to such special meeting and not later than the close of business on the later of the 90 ^th day prior to such special meeting or, if the first public announcement of the date of such special meeting is less than 100 days prior to the date of such special meeting, the 10 ^th day following the day on which public announcement is first made of the date of the special meeting and of the nominees proposed by the Board of Directors to be elected at such meeting. In no event shall the public announcement of an adjournment or postponement of a special meeting commence a new time period for the giving of a stockholder’s notice as described above.

     (C)  General . (1) Only such persons who are nominated in accordance with the procedures set forth in this Bylaw shall be eligible to serve as directors and only such business shall be conducted at a meeting of stockholders as shall have been brought before the meeting in accordance with the procedures set forth in this Bylaw. Except as otherwise provided by law, the Certificate of Incorporation or these Bylaws, the Chairman of the meeting shall have the power and duty to determine whether a nomination or any business proposed to be brought before the meeting was made or proposed, as the case may be, in accordance with the procedures set forth in this Bylaw and, if any proposed nomination or business is not in compliance with this Bylaw, to declare that such defective proposal or nomination shall be disregarded.

          (2) For purposes of this Bylaw, “ public announcement ” shall mean disclosure in a press release reported by Dow Jones News Service, the Associated Press, or any other national news service or in a document publicly filed by the Corporation with the Securities and Exchange Commission pursuant to Section 13, 14 or 15(d) of the Exchange Act and the rules and regulations promulgated thereunder.

          (3) Notwithstanding the foregoing provisions of this Bylaw, a stockholder shall also comply with all applicable requirements of the Exchange Act and the rules and regulations thereunder with respect to the matters set forth in this Bylaw; provided , however , that any references in these Bylaws to the Exchange Act or the rules promulgated thereunder are not intended to and shall not limit the requirements applicable to nominations or proposals as to any other business to be considered pursuant to Section 2.7(A)(1)(c) or Section 2.7(B) of this Bylaw. Nothing in this Bylaw shall be deemed to affect any rights (i) of stockholders to request inclusion of proposals in the Corporation’s proxy statement pursuant to Rule 14a-8 under the Exchange Act or (ii) of the holders of any series of Preferred Stock if and to the extent provided for under law, the Certificate of Incorporation or these Bylaws.

          (D) Conduct of Business . The Chief Executive Officer, or in the alternative, the Chairman shall also conduct the meeting in an orderly manner, rule on the precedence of, and procedure on, motions and other procedural matters, and exercise discretion with respect to such procedural matters. Without limiting the foregoing, the Chief Executive Officer or Chairman may (a) restrict attendance at any time to bona fide stockholders of record and their proxies and other persons in attendance at the invitation of the presiding officer or Board of Directors, (b) restrict use of audio or video recording devices at the meeting, and (c) impose reasonable limits on the amount of time taken up at the meeting on discussion in general or on remarks by any one stockholder. Should any person in attendance become unruly or obstruct the meeting proceedings, the Chief Executive Officer or Chairman shall have the power to have such person removed from the meeting. Notwithstanding anything in the Bylaws to the contrary, no business shall be conducted at a meeting except in accordance with the procedures set forth in this Article II. The Chief Executive Officer or Chairman of a meeting may determine and declare to the meeting that any proposed item of business was not brought before the meeting in accordance with the provisions of this Article II, and if he should so determine, he shall so declare to the meeting and any such business not properly brought before the meeting shall not be transacted.

          (E)  Meetings by Remote Communication . If authorized by the Board of Directors, and subject to such guidelines and procedures as the Board of Directors may adopt, stockholders and proxy holders not physically present at a meeting of stockholders may, by means of remote communication, participate in the meeting and be deemed present in person and vote at the meeting, whether such meeting is to be held at a designated place or solely by means of remote communication, provided that (i) the Corporation shall implement reasonable measures to verify that each person deemed present and permitted to vote at the meeting by means of remote communication is a stockholder or proxy holder, (ii) the Corporation shall implement reasonable measures to provide such stockholders and proxy holders a reasonable opportunity to participate in the meeting and to vote on matters submitted to the stockholders, including an opportunity to read or hear the proceedings of the meeting substantially concurrently with such proceedings, and (iii) if any stockholder or proxy holder votes or takes other action at the meeting by means of remote communication, a record of such vote or other action shall be maintained by the Corporation.

     SECTION 2.8. Submission of Questionnaire. Representation and Agreement. To be eligible to be a nominee for election or reelection as a director of the Corporation, a person must deliver (in accordance with the time periods prescribed for delivery of notice under Section 2.7 of this Bylaw) to the Secretary at the principal executive offices of the Corporation a written questionnaire with respect to the background and qualification of such person and the background of any other person or entity on whose behalf the nomination is being made (which questionnaire shall be provided by the Secretary upon written request) and a written representation and agreement (in the form provided by the Secretary upon written request) that such person (A) is not and will not become a party to (1) any agreement, arrangement or understanding with, and has not given any commitment or assurance to, any person or entity as to how such person, if elected as a director of the Corporation, will act or vote on any issue or question (a “ Voting Commitment ”) that has not been disclosed to the Corporation or (2) any Voting Commitment that could limit or interfere with such person’s ability to comply, if elected as a director of the Corporation, with such person’s fiduciary duties under applicable law, (B) is not and will not become a party to any agreement,

arrangement or understanding with any person or entity other than the Corporation with respect to any direct or indirect compensation, reimbursement or indemnification in connection with service or action as a director that has not been disclosed therein, and (C) in such person’s individual capacity and on behalf of any person or entity on whose behalf the nomination is being made, would be in compliance, if elected as a director of the Corporation, and will comply with all applicable publicly disclosed corporate governance, conflict of interest, confidentiality and stock ownership and trading policies and guidelines of the Corporation.

     SECTION 2.9. Procedure for Election of Directors; Required Vote . Election of directors at all meetings of the stockholders at which directors are to be elected shall be by ballot, and, subject to the rights of the holders of any series of Preferred Stock to elect directors under specified circumstances, a plurality of the votes cast thereat shall elect directors. Except as otherwise provided by law, the Certificate of Incorporation, or these Bylaws, in all matters other than the election of directors, the affirmative vote of a majority of the shares present in person or represented by proxy at the meeting and entitled to vote on the matter shall be the act of the stockholders.

     SECTION 2.10. Inspectors of Elections; Opening and Closing the Polls . The Board of Directors by resolution shall appoint one or more inspectors, which inspector or inspectors may include individuals who serve the Corporation in other capacities, including, without limitation, as officers, employees, agents or representatives, to act at the meetings of stockholders and make a written report thereof. One or more persons may be designated as alternate inspectors to replace any inspector who fails to act. If no inspector or alternate has been appointed to act or is able to act at a meeting of stockholders, the Chairman of the meeting shall appoint one or more inspectors to act at the meeting. Each inspector, before discharging his or her duties, shall take and sign an oath faithfully to execute the duties of inspector with strict impartiality and according to the best of his or her ability. The inspectors shall have the duties prescribed by law.

     The Chairman of the meeting shall fix and announce at the meeting the date and time of the opening and the closing of the polls for each matter upon which the stockholders will vote at a meeting.

     SECTION 2.11. Stockholder Action by Written Consent . Except as otherwise provided by law or by the Certificate of Incorporation, subject to the rights of holders of any series of Preferred Stock with respect to such series of Preferred Stock, any action required or permitted to be taken by the stockholders of the Corporation must be taken at a duly held annual or special meeting of stockholders and may not be taken by any consent in writing of such stockholders.

ARTICLE III

BOARD OF DIRECTORS

     SECTION 3.1. General Powers . The business and affairs of the Corporation shall be managed under the direction of the Board of Directors elected in accordance with these

Bylaws. In addition to the powers and authorities by these Bylaws expressly conferred upon them, the Board of Directors may exercise all such powers of the Corporation and do all such lawful acts and things as are not by statute or by the Certificate of Incorporation or by these Bylaws required to be exercised or done by the stockholders.

     SECTION 3.2. Number, Tenure and Qualifications . Subject to the rights of the holders of any series of Preferred Stock to elect directors under specified circumstances, the number of directors shall be fixed from time to time exclusively pursuant to a resolution adopted by a majority of the total number of directors which the Corporation would have if there were no vacancies (the “Whole Board”).

     SECTION 3.3. Regular Meetings . A regular meeting of the Board of Directors shall be held without other notice than this Bylaw immediately after, and at the same place as, the Annual Meeting of Stockholders. Subject to Section 3.5, the Board of Directors may, by resolution, provide the time and place for the holding of additional regular meetings without other notice than such resolution.

     SECTION 3.4. Special Meetings . Except as otherwise provided by law or by the Certificate of Incorporation and subject to Section 3.5, special meetings of the Board of Directors of the Corporation may be called only by the Chairman of the Board, the Chief Executive Officer or the Board of Directors pursuant to a resolution adopted by a majority of the Whole Board. The person or persons authorized to call special meetings of the Board of Directors may fix the place and time of the meetings.

     SECTION 3.5. Notice . Notice of any meeting of directors shall be given to each director at his business or residence in writing by hand delivery, first-class or overnight mail or courier service, telegram or facsimile transmission, electronic transmission or orally by telephone. If mailed by first-class mail, such notice shall be deemed adequately delivered when deposited in the United States mails so addressed, with postage thereon prepaid, at least five days before such meeting. If by telegram, overnight mail or courier service, such notice shall be deemed adequately delivered when the telegram is delivered to the telegraph company or the notice is delivered to the overnight mail or courier service company at least 24 hours before such meeting. If by facsimile or electronic transmission, such notice shall be deemed adequately delivered when the notice is transmitted at least 12 hours before such meeting. If by telephone, orally or by hand delivery, the notice shall be given at least 12 hours prior to the time set for the meeting. Neither the business to be transacted at, nor the purpose of, any regular or special meeting of the Board of Directors need be specified in the notice of such meeting, except for amendments to these Bylaws, as provided under Section 8.1. A meeting may be held at any time without notice if all the directors are present or if those not present waive notice of the meeting in accordance with Section 6.4 of these Bylaws.

     SECTION 3.6. Action by Consent of Board of Directors . Any action required or permitted to be taken at any meeting of the Board of Directors or of any committee thereof may be taken without a meeting if all members of the Board of Directors or committee, as the case may be, consent thereto in writing, and the writing or writings are filed with the minutes of proceedings of the Board of Directors or committee. Any copy, facsimile transmission or other reliable reproduction of the writing or transmission created pursuant to this section may be

substituted or used in lieu of the original writing or transmission for any and all purposes for which the original writing or transmission could be used.

     SECTION 3.7. Conference Telephone Meetings . Members of the Board of Directors, or any committee thereof, may participate in a meeting of the Board of Directors or such committee by means of conference telephone or similar communications equipment by means of which all persons participating in the meeting can hear each other, and such participation in a meeting shall constitute presence in person at such meeting.

     SECTION 3.8. Quorum . Subject to Section 3.9, a whole number of directors equal to at least a majority of the Whole Board shall constitute a quorum for the transaction of business, but if at any meeting of the Board of Directors there shall be less than a quorum present, a majority of the directors present may adjourn the meeting from time to time without further notice. The act of the majority of the directors present at a meeting at which a quorum is present shall be the act of the Board of Directors. The directors present at a duly organized meeting may continue to transact business until adjournment, notwithstanding the withdrawal of enough directors to leave less than a quorum.

     SECTION 3.9. Vacancies . Subject to applicable law and the rights of the holders of any series of Preferred Stock with respect to such series of Preferred Stock, and unless the Board of Directors otherwise determines, vacancies resulting from death, resignation, retirement, disqualification, removal from office or other cause, and newly created directorships resulting from any increase in the authorized number of directors, may be filled only by the affirmative vote of a majority of the remaining directors, though less than a quorum of the Board of Directors, and directors so chosen shall hold office for a term expiring at the annual meeting of stockholders at which the term of office of the class to which they have been elected expires and until such director’s successor shall have been duly elected and qualified. No decrease in the number of authorized directors constituting the Whole Board shall shorten the term of any incumbent director.

     SECTION 3.10. Executive and Other Committees . The Board of Directors may, by resolution adopted by a majority of the Whole Board, designate an Executive Committee to exercise, subject to applicable provisions of law, all the powers of the Board of Directors in the management of the business and affairs of the Corporation when the Board of Directors is not in session, including without limitation the power to declare dividends, to authorize the issuance of the Corporation’s capital stock and to adopt a certificate of ownership and merger pursuant to Section 253 of the General Corporation Law of the State of Delaware, and may, by resolution similarly adopted, designate one or more other committees. The Executive Committee and each such other committee shall consist of one or more directors of the Corporation. The Board of Directors may designate one or more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of the committee. Any such committee, other than the Executive Committee (the powers of which are expressly provided for herein), may to the extent permitted by law exercise such powers and shall have such responsibilities as shall be specified in the designating resolution. In the absence or disqualification of any member of such committee or committees, the member or members thereof present at any meeting and not disqualified from voting, whether or not constituting a

quorum, may unanimously appoint another member of the Board of Directors to act at the meeting in the place of any such absent or disqualified member. Each committee shall keep written minutes of its proceedings and shall report such proceedings to the Board of Directors when required.

     A majority of any committee may determine its action and fix the time and place of its meetings, unless the Board of Directors shall otherwise provide. Notice of such meetings shall be given to each member of the committee in the manner provided for in Section 3.5 of these Bylaws. The Board of Directors shall have power at any time to fill vacancies in, to change the membership of, or to dissolve any such committee. Nothing herein shall be deemed to prevent the Board of Directors from appointing one or more committees consisting in whole or in part of persons who are not directors of the Corporation; provided , however , that no such committee shall have or may exercise any authority of the Board of Directors.

     SECTION 3.11. Removal . Subject to the rights of the holders of any series of Preferred Stock with respect to such series of Preferred Stock, any director, or the Whole Board, may be removed from office at any time, but only for cause and only by the affirmative vote of the holders of at least 66 ² / 3 percent of the voting power of all of the then-outstanding shares of Voting Stock, voting together as a single class.

     SECTION 3.12. Records . The Board of Directors shall cause to be kept a record containing the minutes of the proceedings of the meetings of the Board of Directors and of the stockholders, appropriate stock books and registers and such books of records and accounts as may be necessary for the proper conduct of the business of the Corporation.

     SECTION 3.13. Compensation . Unless otherwise restricted by the Certificate of Incorporation or these bylaws, the Board of Directors shall have authority to fix the compensation of directors, including fees and reimbursement of expenses.

     SECTION 3.14. Organization . Meetings of the Board of Directors shall be presided over by the Chairman of the Board or, in his or her absence, by a chairman chosen at the meeting. The Secretary shall act as secretary of the meeting, but in his or her absence, the chairman of the meeting may appoint any person to act as secretary of the meeting.

ARTICLE IV

OFFICERS

     SECTION 4.1. Elected Officers . The elected officers of the Corporation shall be a Chairman of the Board, a Chief Executive Officer, a President, a Secretary, a Treasurer, and such other officers (including, without limitation, a Chief Financial Officer) as the Board of Directors from time to time may deem proper. The Chairman of the Board shall be chosen from among the directors. All officers elected by the Board of Directors shall each have such powers

and duties as generally pertain to their respective offices, subject to the specific provisions of this ARTICLE IV. Such officers shall also have such powers and duties as from time to time may be conferred by the Board of Directors or by any committee thereof. The Board of Directors or any committee thereof may from time to time elect, or the Chairman of the Board, Chief Executive Officer or President may appoint, such other officers (including one or more Assistant Vice Presidents, Assistant Secretaries, Assistant Treasurers, and Assistant Controllers) and such agents, as may be necessary or desirable for the conduct of the business of the Corporation. Such other officers and agents shall have such duties and shall hold their offices for such terms as shall be provided in these Bylaws or as may be prescribed by the Board of Directors or such committee or by the Chairman of the Board, Chief Executive Officer or President, as the case may be.

     SECTION 4.2. Election and Term of Office . The elected officers of the Corporation shall be elected annually by the Board of Directors at the regular meeting of the Board of Directors held after the annual meeting of the stockholders. If the election of officers shall not be held at such meeting, such election shall be held as soon thereafter as convenient. Each officer shall hold office until his successor shall have been duly elected and shall have qualified or until his death or until he shall resign, but any officer may be removed from office at any time by the affirmative vote of a majority of the Whole Board or, except in the case of an officer or agent elected by the Board of Directors, by the Chairman of the Board, Chief Executive Officer or President. Such removal shall be without prejudice to the contractual rights, if any, of the person so removed.

     SECTION 4.3. Chairman of the Board . The Chairman of the Board shall preside at all meetings of the stockholders and of the Board of Directors. The Chairman of the Board shall be responsible for the general management of the affairs of the Corporation and shall perform all duties incidental to his office which may be required by law and all such other duties as are properly required of him by the Board of Directors. He shall make reports to the Board of Directors and the stockholders, and shall see that all orders and resolutions of the Board of Directors and of any committee thereof are carried into effect. The Chairman of the Board may hold the title Executive Chairman of the Board and also serve as Chief Executive Officer or President, if so elected by the Board of Directors.

     SECTION 4.4. Chief Executive Officer . The Chief Executive Officer shall act in a general executive capacity and shall assist the Chairman of the Board in the administration and operation of the Corporation’s business and general supervision of its policies and affairs. The Chief Executive Officer shall, in the absence of or because of the inability to act of the Chairman of the Board, perform all duties of the Chairman of the Board and preside at all meetings of stockholders and of the Board of Directors.

     SECTION 4.5. President. The President shall have such powers and shall perform such duties as shall be assigned to him by the Board of Directors.

     SECTION 4.6. Vice-Presidents . Each Vice President shall have such powers and shall perform such duties as shall be assigned to him by the Board of Directors.

     SECTION 4.7. Chief Financial Officer . The Chief Financial Officer (if any) shall act in an executive financial capacity. He shall assist the Chairman of the Board and the Chief Executive Officer in the general supervision of the Corporation’s financial policies and affairs.

     SECTION 4.8. Treasurer . The Treasurer shall exercise general supervision over the receipt, custody and disbursement of corporate funds. The Treasurer shall cause the funds of the Corporation to be deposited in such banks as may be authorized by the Board of Directors, or in such banks as may be designated as depositaries in the manner provided by resolution of the Board of Directors. He shall have such further powers and duties and shall be subject to such directions as may be granted or imposed upon him from time to time by the Board of Directors, the Chairman of the Board, the Chief Executive Officer or the President.

     SECTION 4.9. Secretary . The Secretary shall keep or cause to be kept in one or more books provided for that purpose, the minutes of all meetings of the Board of Directors, the committees of the Board of Directors and the stockholders; he shall see that all notices are duly given in accordance with the provisions of these Bylaws and as required by law; he shall be custodian of the records and the seal of the Corporation and affix and attest the seal to all stock certificates of the Corporation (unless the seal of the Corporation on such certificates shall be a facsimile, as hereinafter provided) and affix and attest the seal to all other documents to be executed on behalf of the Corporation under its seal; and he shall see that the books, reports, statements, certificates and other documents and records required by law to be kept and filed are properly kept and filed; and in general, he shall perform all the duties incident to the office of Secretary and such other duties as from time to time may be assigned to him by the Board of Directors, the Chairman of the Board, the Chief Executive Officer or the President.

     SECTION 4.10. Removal . Any officer elected, or agent appointed, by the Board of Directors may be removed by the affirmative vote of a majority of the Whole Board whenever, in their judgment, the best interests of the Corporation would be served thereby. Any officer or agent appointed by the Chairman of the Board, the Chief Executive Officer or the President may be removed by him whenever, in his judgment, the best interests of the Corporation would be served thereby. No elected officer shall have any contractual rights against the Corporation for compensation by virtue of such election beyond the date of the election of his successor, his death, his resignation or his removal, whichever event shall first occur, except as otherwise provided in an employment contract or under an employee deferred compensation plan.

     SECTION 4.11. Vacancies . A newly created elected office and a vacancy in any elected office because of death, resignation, or removal may be filled by the Board of Directors for the unexpired portion of the term at any meeting of the Board of Directors. Any vacancy in an office appointed by the Chairman of the Board, the Chief Executive Officer or the President because of death, resignation, or removal may be filled by the Chairman of the Board, the Chief Executive Officer or the President.

     SECTION 4.12. Additional Matters . The Board of Directors, the Chairman of the Board, the Chief Executive Officer and the President shall have the authority to designate employees of the Corporation to have the title of Executive Vice President, Senior Vice

President, Assistant Vice President, Assistant Treasurer or Assistant Secretary. Any employee so designated shall have the power and duties determined by the Board of Directors or officer making such designation. The persons upon whom such titles are conferred shall not be deemed officers of the Corporation unless elected by the Board of Directors.

ARTICLE V

STOCK CERTIFICATES AND TRANSFERS

     SECTION 5.1. Stock Certificates and Transfers . The interest of each stockholder of the Corporation shall be evidenced by certificates for shares of stock in such form as the appropriate officers of the Corporation may from time to time prescribe; provided that the Board of Directors of the Corporation may provide by resolution or resolutions that some or all of any or all classes or series of its stock may be uncertificated or electronic shares. The shares of the stock of the Corporation shall be transferred on the books of the Corporation, which may be maintained by a third party registrar or transfer agent, by the holder thereof in person or by his attorney, upon surrender for cancellation of certificates for at least the same number of shares, with an assignment and power of transfer endorsed thereon or attached thereto, duly executed, with such proof of the authenticity of the signature as the Corporation or its agents may reasonably require or upon receipt of proper transfer instructions from the registered holder of uncertificated shares and upon compliance with appropriate procedures for transferring shares in uncertificated form.

     Each certificated share of stock shall be signed, countersigned and registered in such manner as the Board of Directors may by resolution prescribe, which resolution may permit all or any of the signatures on such certificates to be in facsimile. In case any officer, transfer agent or registrar who has signed or whose facsimile signature has been placed upon a certificate has ceased to be such officer, transfer agent or registrar before such certificate is issued, it may be issued by the Corporation with the same effect as if he were such officer, transfer agent or registrar at the date of issue.

     SECTION 5.2. Lost, Stolen or Destroyed Certificates . No certificate for shares or uncertificated shares of stock in the Corporation shall be issued in place of any certificate alleged to have been lost, destroyed or stolen, except on production of such evidence of such loss, destruction or theft and on delivery to the Corporation of a bond of indemnity in such amount, upon such terms and secured by such surety, as the Board of Directors or any financial officer may in its or his discretion require.

ARTICLE VI

MISCELLANEOUS PROVISIONS

     SECTION 6.1. Fiscal Year . The fiscal year of the Corporation shall begin on the first day of January and end on the thirty-first day of December of each year.

     SECTION 6.2. Dividends . Except as otherwise provided by law or the Certificate of Incorporation, the Board of Directors may from time to time declare, and the Corporation may pay, dividends on its outstanding shares of capital stock, which dividends may be paid in either cash, property or shares of capital stock of the Corporation.

     SECTION 6.3. Seal . The corporate seal, if adopted, shall have enscribed thereon the words “Corporate Seal”, the year of incorporation and around the margin thereof the words [“Targa Resources Corp. — Delaware.”]

     SECTION 6.4. Waiver of Notice . Whenever any notice is required to be given to any stockholder or director of the Corporation under the provisions of the General Corporation Law of the State of Delaware, the Certificate of Incorporation or these Bylaws, a waiver thereof in writing, signed by the person or persons entitled to such notice, whether before or after the time stated therein, shall be deemed equivalent to the giving of such notice. Neither the business to be transacted at, nor the purpose of, any annual or special meeting of the stockholders or the Board of Directors or committee thereof need be specified in any waiver of notice of such meeting. Attendance of a person at a meeting shall constitute a waiver of notice of such meeting, except when the person attends a meeting for the express purpose of objecting at the beginning of the meeting, to the transaction of any business because the meeting is not lawfully called or convened.

     SECTION 6.5. Audits . The accounts, books and records of the Corporation shall be audited upon the conclusion of each fiscal year by an independent certified public accountant selected by the Board of Directors, and it shall be the duty of the Board of Directors to cause such audit to be done annually.

     SECTION 6.6. Resignations . Any director or any officer, whether elected or appointed, may resign at any time by giving written notice or notice via electronic transmission of such resignation to the Chairman of the Board, the President, or the Secretary, and such resignation shall be deemed to be effective as of the close of business on the date said notice is received by the Chairman of the Board, the President, or the Secretary, or at such later time as is specified therein. No formal action shall be required of the Board of Directors or the stockholders to make any such resignation effective.

     SECTION 6.7. Indemnification and Insurance . (A)(1) Each person who was or is a party or is threatened to be made a party to or is involved in any Proceeding (other than a Proceeding by or in the right of the Corporation), by reason of the fact that he or she or a person of whom he or she is the legal representative is or was a director, officer, employee, agent or fiduciary of a Subject Enterprise, or by reason of any act or omission by such person in such capacity, shall be indemnified and held harmless by the Corporation to the fullest extent authorized by the General Corporation Law of the State of Delaware as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than said law permitted the Corporation to provide prior to such amendment), against all Expenses, liabilities and amounts paid in settlement which were actually and reasonably incurred by, or in the case of retainers, to be incurred by, such person in connection therewith, and such indemnification shall

continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of his or her heirs, executors and administrators.

     (2) Each person who was or is a party or is threatened to be made a party to or is involved in any Proceeding brought by or in the right of the Corporation to procure a judgment in its favor by reason of the fact that he or she or a person of whom he or she is the legal representative is or was a director, officer, employee, agent or fiduciary of a Subject Enterprise, or by reason of any act of omission by such person in such capacity, shall be indemnified against all Expenses actually and reasonably incurred by, or in the case of retainers, to be incurred by, such person in connection therewith, and such indemnification shall continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of his or her heirs, executors and administrators.

     (3) Notwithstanding Section 6.7(A)(1) and (2) , no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the Corporation in a final adjudication by a court of competent jurisdiction from which there is no further right of appeal, unless and to the extent that the Court of Chancery of the State of Delaware, or the court in which such Proceeding shall have been brought or is pending, shall determine that such indemnification may be made.

     (4) Notwithstanding Section 6.7(A)(1) and (2) , except as provided in paragraph (C) of this Bylaw, the Corporation shall indemnify any such person seeking indemnification in connection with a Proceeding (or part thereof) initiated by such person only if such Proceeding (or part thereof) was authorized by the Board of Directors.

     (5) The right to indemnification conferred in this Bylaw shall be a contract right and shall include the right to be paid by the Corporation the Expenses incurred or, in the case of retainer or similar fees, reasonably expected to be incurred, in defending any such Proceeding in advance of its final disposition, such advances to be paid by the Corporation within seven days after the receipt by the Corporation of a statement or statements from the claimant requesting such advance or advances from time to time; provided , however , that if the General Corporation Law of the State of Delaware requires, the payment of such expenses incurred by a director or officer in his or her capacity as a director or officer (and not in any other capacity in which service was or is rendered by such person while a director or officer, including, without limitation, service to an employee benefit plan) in advance of the final disposition of a Proceeding, shall be made only upon delivery to the Corporation of a written affirmation by such person of such person’s good faith belief that such person has met the standard of conduct necessary for indemnification under this Bylaw and an undertaking by or on behalf of such to repay such amount if it is ultimately determined that such is not entitled to be indemnified against such Expenses by the Company pursuant to this Bylaw or otherwise.

     (B) To obtain indemnification under this Bylaw, a claimant shall submit to the Corporation a written request, including documentation and information which is reasonably available to the claimant and is reasonably necessary to determine whether the claimant is entitled to indemnification. Upon written request by a claimant for indemnification pursuant to the first sentence of this paragraph (B), a determination, if required by applicable law, with respect to the claimant’s entitlement thereto shall be made as follows: (1) if requested by the

claimant, by Independent Counsel (as hereinafter defined) in a written opinion to the Board of Directors, a copy of which shall be delivered to the claimant, or (2) if no request is made by the claimant for a determination by Independent Counsel, (i) by the Board of Directors by a majority vote of a quorum consisting of Disinterested Directors (as hereinafter defined), or (ii) if a quorum of the Board of Directors consisting of Disinterested Directors is not obtainable or, even if obtainable, such quorum of Disinterested Directors so directs, by Independent Counsel in a written opinion to the Board of Directors, a copy of which shall be delivered to the claimant. [The Independent Counsel shall be selected by the Board of Directors unless there shall have occurred within two years prior to the date of the commencement of the Proceeding for which indemnification is claimed a “Change of Control” as defined in the Corporation’s 2010 Long Term Incentive Plan, in which case the Independent Counsel shall be selected by the claimant unless the claimant shall request that such selection be made by the Board of Directors.] Such determination of entitlement to indemnification shall be made not later than 45 days after receipt by the Corporation of a written request for indemnification. If it is so determined that the claimant is entitled to indemnification, payment to the claimant shall be made within 15 days after such determination.

     (C) If the Board of Directors or the Independent Counsel, as applicable, shall have failed to make a determination as to entitlement to indemnification within 45 days after receipt by the Corporation of such request, the requisite determination of entitlement to indemnification shall be deemed to have been made and the claimant shall be absolutely entitled to such indemnification, absent actual and material fraud in the request for indemnification, a prohibition of indemnification under applicable law in effect, or a subsequent determination that such indemnification is prohibited by applicable law. The termination of any Proceeding by judgment, order, settlement or conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself: (i) create a presumption that the claimant acted in bad faith or in a manner which he/she reasonably believed to be opposed to the best interests of the Corporation, or, with respect to any criminal Proceeding, that the claimant has reasonable cause to believe that the claimant’s conduct was unlawful; or (ii) otherwise adversely affect the rights of the claimant to indemnification, except as may be provided herein.

     (D) If a determination shall have been made pursuant to paragraph (B) of this Bylaw that the claimant is entitled to indemnification, the Corporation shall be bound by such determination and shall be precluded from asserting that such determination has not been made in any judicial Proceeding commenced pursuant to paragraph (C) of this Bylaw.

     (E) The Corporation shall be precluded from asserting in any judicial Proceeding commenced pursuant to paragraph (C) of this Bylaw that the procedures and presumptions of this Bylaw are not valid, binding and enforceable and shall stipulate in such Proceeding that the Corporation is bound by all the provisions of this Bylaw.

     (F) The right to indemnification and the payment of Expenses incurred, or in the case of retainers or similar Expenses, reasonably expected to be incurred, in defending a Proceeding in advance of its final disposition conferred in this Bylaw shall not be exclusive of any other right which any person may have or hereafter acquire under any statute, provision of the Certificate of Incorporation, Bylaws, agreement, vote of stockholders or Disinterested

Directors or otherwise. No repeal or modification of this Bylaw shall in any way diminish or adversely affect the rights of any director, officer, employee or agent of the Corporation hereunder in respect of any occurrence or matter arising prior to any such repeal or modification.

     (G) The Corporation may maintain insurance, at its expense, to protect itself and any director, officer, employee or agent of the Corporation or another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss, whether or not the Corporation would have the power to indemnify such person against such expense, liability or loss under the General Corporation Law of the State of Delaware. To the extent that the Corporation maintains any policy or policies providing such insurance, each such director or officer, and each such agent or employee to which rights to indemnification have been granted as provided in paragraph (H) of this Bylaw, shall be covered by such policy or policies in accordance with its or their terms to the maximum extent of the coverage thereunder for any such director, officer, employee or agent.

     (H) The Corporation may, to the extent authorized from time to time by the Board of Directors, grant rights to indemnification, and rights to be paid by the Corporation the expenses incurred in defending any Proceeding in advance of its final disposition, to any employee or agent of the Corporation to the fullest extent of the provisions of this Bylaw with respect to the indemnification and advancement of expenses of directors and officers of the Corporation.

     (I) If any provision or provisions of this Bylaw shall be held to be invalid, illegal or unenforceable for any reason whatsoever: (1) the validity, legality and enforceability of the remaining provisions of this Bylaw (including, without limitation, each portion of any paragraph of this Bylaw containing any such provision held to be invalid, illegal or unenforceable, that is not itself held to be invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby; and (2) to the fullest extent possible, the provisions of this Bylaw (including, without limitation, each such portion of any paragraph of this Bylaw containing any such provision held to be invalid, illegal or unenforceable) shall be construed so as to give effect to the intent manifested by the provision held invalid, illegal or unenforceable.

     (J) For purposes of this Bylaw:

     (1) “ Disinterested Director ” means a director of the Corporation who is not and was not a party to the matter in respect of which indemnification is sought.

     (2) “ Expenses ” means judgments, penalties (including, but not limited to, excise and similar taxes) and fines against such person and all reasonable attorneys’ fees, accountants’ fees, retainers, court costs, transcript costs, fees of experts, witness fees, travel expenses, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, and all other disbursements or expenses incurred in connection with prosecuting, defending, preparing to prosecute or defend, investigating or being or preparing to be a witness in any Proceeding or establishing such person’s right of entitlement to indemnification for any of the foregoing.

     (3) “ Independent Counsel ” means a law firm of at least 50 attorneys or a member of a law firm of at least 50 attorneys that is experienced in matters of corporate law and that neither is presently nor in the past five years has been retained to represent (i) the Corporation or the claimant or any affiliate thereof in any matter material to either such party or (ii) any other party to the Proceeding giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who, under the applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the Corporation or the claimant in an action to determine the claimant’s right to indemnification under this Bylaw.

     (4) “ Proceeding ” means any threatened, pending or completed action, suit, arbitration, investigation, inquiry, alternate dispute resolution mechanism, administrative or legislative hearing, or any other proceeding (including, without limitation, any securities laws action, suit, arbitration, investigation, inquiry, alternative dispute resolution mechanism, hearing or procedure) whether civil, criminal, administrative, arbitrative or investigative and whether or not based upon events occurring, or actions taken, before the date hereof, and any appeal in or related to any such action, suit, arbitration, investigation, inquiry, alternate dispute resolution mechanism, hearing or proceeding and any inquiry or investigation (including discovery), whether conducted by or in the right of the Corporation or any other person, that such person in good faith believes could lead to any such action, suit, arbitration, investigation, inquiry, alternative dispute resolution mechanism, hearing or other proceeding or appeal thereof.

     (5) “ Subject Enterprise ” means the Corporation or any of the Corporation’s direct or indirect wholly-owned subsidiaries or any other entity, including, but not limited to, another corporation, partnership, limited liability company, employee benefit plan, joint venture, trust or other enterprise for which a person is or was serving as a director, officer, employee, agent or fiduciary at the request of the Corporation.

     (K) Any notice, request or other communication required or permitted to be given to the Corporation under this Bylaw shall be in writing and either delivered in person or sent by facsimile, electronic transmission, overnight mail or courier service, or certified or registered mail, postage prepaid, return receipt requested, to the Secretary of the Corporation and shall be effective only upon receipt by the Secretary.

     SECTION 6.8. Notices . Except as otherwise specifically provided herein or required by law, all notices required to be given to any stockholder, director, officer, employee or agent shall be in writing and may in every instance be effectively given by hand delivery to the recipient thereof, by depositing such notice in the mails, postage paid, or by sending such notice by commercial courier service, or by facsimile or other electronic transmission, provided that notice to stockholders by electronic transmission shall be given in the manner provided in Section 232 of the Delaware General Corporation Law. Any such notice shall be addressed to

such stockholder, director, officer, employee or agent at his or her last known address as the same appears on the books of the Corporation. The time when such notice shall be deemed to given shall be the time such notice is received by such stockholder, director, officer employee or agent, or by any person accepting such notice on behalf of such person, if delivered by hand, facsimile, other electronic transmission or commercial courier service, or the time such notice is dispatched, if delivered through the mails. Without limiting the manner by which notice otherwise may be given effectively, notice to any stockholder shall be deemed given: (1) if by facsimile, when directed to a number at which the stockholder has consented to receive notice; (2) if by electronic mail, when directed to an electronic mail address at which the stockholder has consented to receive notice; (3) if by posting on an electronic network together with separate notice to the stockholder of such specific posting, upon the later of (A) such posting and (B) the giving of such separate notice; (4) if by any other form of electronic transmission, when directed to the stockholder; and (5) if by mail, when deposited in the mail, postage prepaid, directed to the stockholder at such stockholder’s address as it appears on the records of the Corporation.

     SECTION 6.9. Facsimile Signatures . In addition to the provisions for use of facsimile signatures elsewhere specifically authorized in these Bylaws, facsimile signatures of any officer or officers of the Corporation may be used whenever and as authorized by the Board of Directors or a committee thereof.

     SECTION 6.10. Time Periods . In applying any provision of these Bylaws which require that an act be done or not done a specified number of days prior to an event or that an act be done during a period of a specified number of days prior to an event, calendar days shall be used, the day of the doing of the act shall be excluded, and the day of the event shall be included.

     SECTION 6.11. Reliance Upon Books, Reports and Records . Each director, each member of any committee designated by the Board of Directors, and each officer of the Corporation shall, in the performance of his duties, be fully protected in relying in good faith upon the books of account or other records of the Corporation as provided by law, including reports made to the Corporation by any of its officers, by an independent certified public accountant, or by an appraiser selected with reasonable care.

ARTICLE VII

CONTRACTS, PROXIES, ETC.

     SECTION 7.1. Contracts . Except as otherwise required by law, the Certificate of Incorporation or these Bylaws, any contracts or other instruments may be executed and delivered in the name and on the behalf of the Corporation by such officer or officers of the Corporation as the Board of Directors may from time to time direct. Such authority may be general or confined to specific instances as the Board of Directors may determine. The Chairman of the Board, the President or any Executive Vice President, Senior Vice President, Vice President and Assistant Vice President may execute bonds, contracts, deeds, leases and other instruments to be made or executed for or on behalf of the Corporation. Subject to any restrictions imposed by the Board of Directors or the Chairman of the Board, the Chief Executive Officer, the President or any Executive Vice President, Senior Vice President or Vice President of the Corporation may

delegate contractual powers to others under his jurisdiction, it being understood, however, that any such delegation of power shall not relieve such officer of responsibility with respect to the exercise of such delegated power.

     SECTION 7.2. Proxies . Unless otherwise provided by resolution adopted by the Board of Directors, the Chairman of the Board, the Chief Executive Officer, the President or any Executive Vice President, Senior Vice President or Vice President may from time to time appoint an attorney or attorneys or agent or agents of the Corporation, in the name and on behalf of the Corporation, to cast the votes which the Corporation may be entitled to cast as the holder of stock or other securities in any other corporation or other entity, any of whose stock or other securities may be held by the Corporation, at meetings of the holders of the stock or other securities of such other corporation or other entity, or to consent in writing, in the name of the Corporation as such holder, to any action by such other corporation or other entity, and may instruct the person or persons so appointed as to the manner of casting such votes or giving such consent, and may execute or cause to be executed in the name and on behalf of the Corporation and under its corporate seal or otherwise, all such written proxies or other instruments as he may deem necessary or proper in the premises.

ARTICLE VIII

AMENDMENTS

     SECTION 8.1. Amendments . These Bylaws may be altered, amended, or repealed at any meeting of the Board of Directors or of the stockholders as set forth in these Bylaws or in the Corporation’s Certificate of Incorporation, as it may be amended or restated from time to time, provided notice of the proposed change was given in the notice of the meeting and, in the case of a meeting of the Board of Directors, in a notice given not less than two days prior to the meeting; provided , however , that, in the case of amendments by stockholders, notwithstanding any other provisions of these Bylaws or any provision of law which might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the holders of any particular class or series of the capital stock of the Corporation required by law, the Certificate of Incorporation or these Bylaws, the affirmative vote of the holders of at least 66? percent of the voting power of all the then outstanding shares of the Voting Stock, voting together as a single class, shall be required to alter, amend or repeal any provision of these Bylaws.