Exhibit 3.1

SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF

COBALT INTERNATIONAL ENERGY, INC.

The original name of the corporation is Cobalt International Energy, Inc. The original certificate of incorporation of the corporation was filed with the Secretary of State of the State of Delaware on August 27, 2009. This Second Amended and Restated Certificate of Incorporation, which both restates and integrates and further amends the provisions of the corporation’s certificate of incorporation, was duly adopted in accordance with the provisions of Sections 242 and 245 of the General Corporation Law of the State of Delaware.

The certificate of incorporation of the corporation is hereby amended and restated to read in its entirety as follows:

ARTICLE 1 NAME

The name of the corporation is Cobalt International Energy, Inc. (the “Corporation”).

ARTICLE 2 REGISTERED OFFICE AND AGENT

The address of its registered office in the State of Delaware is Corporation Trust Center, 1209 Orange Street, City of Wilmington, County of New Castle, Delaware 19801. The name of its registered agent at such address is The Corporation Trust Company.

ARTICLE 3 PURPOSE

The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware as the same exists or may hereafter be amended (“Delaware Law”).

ARTICLE 4 CAPITAL STOCK

Section 1. Authorized Capital Stock. The total number of shares of stock which the Corporation shall have authority to issue is 2,200,000,000, consisting of 2,000,000,000 shares of common stock, par value $0.01 per share (the “Common Stock”), and 200,000,000 shares of preferred stock, par value $0.01 per share (the “Preferred Stock”).

Section 2.  Preferred Stock.  The Board of Directors is hereby empowered to authorize by resolution or resolutions from time to time the issuance of one or more series of Preferred Stock and to fix the designations, powers, preferences and relative, participating, optional or other rights, if any, and the qualifications, limitations or restrictions thereof, if any, with respect to each such series of Preferred Stock and the number of shares constituting each such series, and to increase or decrease the number of shares of any such series to the extent permitted by Delaware Law.

ARTICLE 5 BOARD OF DIRECTORS

Section 1.  Power of the Board of Directors. The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors.

Section 2.  Number of Directors.  Subject to the terms of any series of Preferred Stock entitled to separately elect directors, the Board of Directors shall consist of not less than 5 nor more than 15 directors, with the exact number of directors to be determined from time to time solely by resolution adopted by the affirmative vote of a majority of the entire Board of Directors.

Section 3.  Election of Directors.  

(a)Except as otherwise provided in the terms of any series of Preferred Stock entitled to separately elect directors, the directors shall be divided into three classes, designated Class I, Class II and Class III. Each class shall consist, as nearly as may be possible, of one-third of the total number of directors constituting the entire Board of Directors. Each director shall serve for a term ending on the date of the third annual meeting of stockholders next following the annual meeting at which such director was elected. Commencing at the annual meeting of stockholders to be held in 2017 (each annual meeting of stockholders, an “Annual Meeting”), subject to the special rights of holders of any series of Preferred Stock to elect additional directors, the directors of the Corporation shall be elected annually and shall hold office until the next Annual Meeting and until his or her successor shall be elected and qualified, or his or her death, resignation, retirement, disqualification or removal from office. Notwithstanding the foregoing, any director in office at the 2017 Annual Meeting whose term expires at the 2018 Annual Meeting or the 2019 Annual Meeting (each such director, a “Continuing Classified Director”), shall continue to hold office until the end of the term for which such director was elected and until his or her successor shall be elected and

qualified, or his or her death, resignation, retirement, disqualification or removal from office. In the event of any increase or decrease in the authorized number of directors, each Continuing Classified Director then serving shall nevertheless continue as a Continuing Classified Director until the expiration of his or her term or his or her death, resignation, retirement, disqualification or removal from office. In no event shall a decrease in the number of directors remove or shorten the term of any incumbent director.

Section 4.  Vacancies.  Vacancies and newly created directorships resulting from any increase in the authorized number of directors may be filled solely by a majority of the directors then in office (although less than a quorum) or by the sole remaining director. Subject to the terms of any series of Preferred Stock entitled to separately elect directors, whenever the holders of any class or classes of stock or series thereof are entitled to elect one or more directors by this certificate of incorporation, vacancies and newly created directorships of such class or classes or series may be filled by a majority of directors elected by such class or classes or series thereof then in office, or by a sole remaining director so elected. If there are no directors in office, then an election of directors may be held in accordance with Delaware Law.  When one or more directors shall resign from the Board of Directors, effective at a future date, a majority of the directors then in office, including those who have so resigned, shall have the power to fill such vacancy or vacancies, the vote thereon to take effect when such resignation or resignations shall become effective, and each director so chosen shall hold office as provided in the filling of other vacancies.

Section 5.  Removal.  (a) Until the 2017 Annual Meeting, no director may be removed from office by the stockholders except for cause with the affirmative vote of the holders of not less than a majority of the shares then entitled to vote generally in the election of directors, voting together as a single class.

a class or series, to elect directors, the election, term of office, filling of vacancies, removal and other features of such directorships shall be governed by the terms of

the resolution or resolutions adopted by the Board of Directors pursuant to Article 4 applicable thereto, and such directors so elected shall not be subject to the provisions of this Article 5 unless otherwise provided therein.

ARTICLE 6 STOCKHOLDERS

Section 1.  Action by Written Consent of Stockholders.  (a) Until the Effective Date, any action required or permitted to be taken at any annual or special meeting of stockholders may be taken (i) by a vote of stockholders at a meeting of stockholders duly noticed and called in accordance with Delaware Law or (ii) without a meeting, without prior notice and without a vote, if a consent or consents in writing, setting forth the action so taken, shall be signed by the holders of outstanding capital stock of the Corporation having not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares entitled to vote thereon were present and voted.

Section 2.  Special Meetings of Stockholders.  Special meetings of stockholders may be called only by the Board of Directors or the Chairman of the Board; provided that, until the Effective Date, special meetings of stockholders will also be called by the Secretary of the Corporation at the request of the holders of a majority of the outstanding shares of Common Stock.

ARTICLE 7

LIMITATIONS ON LIABILITY AND INDEMNIFICATION

Section 1.  Limited Liability. A director of the Corporation shall not be liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director to the fullest extent permitted by Delaware Law.

Section 2.  Right to Indemnification.  (a) Each person (and the heirs, executors or administrators of such person) who was or is a party or is threatened to be made a party to, or is otherwise involved in, any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a director or principal officer (as defined in the Corporation’s bylaws) of the Corporation shall be indemnified and held harmless by the Corporation to the fullest extent permitted by Delaware Law; provided, that the Corporation shall not be obligated to indemnify (or advance) expenses to such a director or principal officer with respect to a proceeding (or part thereof) initiated by such director or principal officer (other than a proceeding to enforce the rights granted under this Article 7) unless the Board of Directors approved the initiation of such proceeding (or part

thereof). The right to indemnification conferred in this Article 7 shall also include the right to be paid by the Corporation the expenses (including attorneys’ fees) incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized by Delaware Law.  The right to indemnification conferred in this Article 7 shall be a contract right.

Section 3.  Insurance.  The Corporation shall have power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity or arising out of such person’s status as such, whether or not the Corporation would have the power to indemnify such person against such liability under Delaware Law.

Section 4.  Nonexclusivity of Rights. The rights and authority conferred in this Article 7 shall not be exclusive of any other right which any person may otherwise have or hereafter acquire.

Section 5.  Preservation of Rights. Neither the amendment nor repeal of this Article 7, 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).

ARTICLE 8 CORPORATE OPPORTUNITIES

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, or in being offered an opportunity to participate in, business opportunities that are from time to time presented to any of the Sponsors or any of their respective officers, directors, agents, shareholders, members, partners, affiliates and subsidiaries (other than the Corporation and its subsidiaries) (each, a “Specified Party”), 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 for breach of any fiduciary or other duty, as a director or officer 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.  Notwithstanding the foregoing, a Specified Party who is a director or officer of the Corporation and who is offered a business opportunity in his or her capacity as a director or officer of the Corporation (a “Directed Opportunity”) shall be obligated to communicate such Directed Opportunity to the Corporation, provided, however, that all of the protections of this Article 8 shall otherwise apply to the Specified Parties with respect to such Directed Opportunity, including, without limitation, the ability of the Specified Parties to pursue or acquire such Directed Opportunity or to direct such Directed Opportunity to another person.

Neither the amendment nor repeal of this Article 8, 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 Article 8 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 Article 8 (including, without limitation, each portion of any paragraph of this Article 8 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 Article 8 (including, without limitation, each such portion of any paragraph of this Article 8 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 Article 8 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 Article 8.

ARTICLE 9 MISCELLANEOUS

The following provisions are inserted for the management of the business and the conduct of the affairs of the Corporation and for the further definition of the powers of the Corporation and of its directors and stockholders:

For so long as that certain Stockholders Agreement, dated as of December 15, 2009, by and among the Corporation and the Sponsors, as amended from time to time (the “Stockholders Agreement”), is in effect, the provisions of the Stockholders Agreement shall be incorporated by reference into the relevant provisions hereof, and such provisions shall be interpreted and applied in a manner consistent with the terms of the Stockholders Agreement.

As used herein, the following terms shall have the following meanings:

“Carlyle/Riverstone” shall mean Riverstone Energy Coinvestment III, L.P., C/R Cobalt Investment Partnership, L.P., C/R Energy Coinvestment II, L.P., C/R Energy III Cobalt Partnership, L.P., Carlyle/Riverstone Global Energy and Power Fund III, L.P. and Carlyle Energy Coinvestment III, L.P. collectively.

“GSCP” shall mean GSCP V Cobalt Holdings, LLC, GSCP V Offshore Cobalt Holdings, LLC, GS Capital Partners V Institutional, L.P., GSCP V GmbH Cobalt Holdings, LLC, GSCP VI Cobalt Holdings, LLC, GSCP VI Offshore Cobalt Holdings, LLC, GS Capital Partners VI Parallel, L.P. and GSCP VI GmbH Cobalt Holdings, LLC, collectively.

“First Reserve” shall mean First Reserve Fund XI, L.P. and FR XI Onshore AIV, L.P , collectively.

“KERN” shall mean KERN Cobalt Co-Invest Partners AP LP.

“Effective Date” shall mean the first date on which the Sponsors and

their affiliates no longer beneficially own more than 50% of the outstanding shares of Common Stock of the Corporation or the Corporation no longer qualifies as a “controlled company” under Section 303A of the New York Stock Exchange Listed Company Manual as in effect on December 15, 2009.

“Sponsors” means Carlyle/Riverstone, GSCP, First Reserve and KERN.

ARTICLE 10

AMENDMENT OF CERTIFICATE OF INCORPORATION

The Corporation reserves the right from time to time to amend this certificate of incorporation in any manner permitted by Delaware Law, and all rights and powers conferred upon stockholders, directors and officers herein are granted subject to this reservation.

IN WITNESS WHEREOF, the undersigned has executed this Second Amended and Restated Certificate of Incorporation this 2^nd day of May, 2017.

COBALT INTERNATIONAL ENERGY, INC.