Document:

EX-10.1

 Exhibit 10.1 

EXCHANGE AGREEMENT 
 THIS
EXCHANGE AGREEMENT (this “Agreement”) is made and entered into as of May 18, 2017 by and among Cobalt International Energy, Inc., a Delaware corporation (the “Company”), the Guarantors party hereto, and the
holders, named in Schedule I hereto (the “Holders”), of the Company’s 3.125% Convertible Senior Notes due 2024 (the “2024 Notes”), which were issued under that certain Second Supplemental Indenture (the
“2024 Notes Supplemental Indenture”), dated as of May 13, 2014, supplementing the Senior Indenture (the “Senior Indenture”), dated as of December 17, 2012, between the Company and Wells Fargo Bank, National
Association, as trustee (the “Trustee”). 
 RECITALS 

WHEREAS, the Company has issued and outstanding $847,827,000 aggregate principal amount of 2024 Notes pursuant to the 2024 Notes Supplemental
Indenture; 
 WHEREAS, the Company and the Holders have reached an agreement for the exchange of (i) $60,932,000 aggregate principal
amount of 2024 Notes held by the Holders (or certain funds and/or accounts for which a Holder acts as investment advisor) (the “Exchanged Notes”), for (ii) $32,142,000 aggregate principal amount of new 7.75% Second
Lien Senior Secured Notes due 2023 of the Company (the “Second Lien Notes”) in each case, in the amounts per each Holder as indicated on Schedule I hereto; 

WHEREAS, the Company and Wilmington Trust, National Association, as trustee (the “Second Lien Trustee”) and as second lien
collateral agent (the “Second Lien Collateral Agent”), previously entered into an indenture dated as of December 6, 2016, which governs the Company’s existing second lien notes and will govern the Company’s additional
Second Lien Notes issued pursuant to this Agreement (as amended, modified and supplemented from time to time, the “Second Lien Notes Indenture”), and related collateral documents, including the related security agreements entered
into on December 6, 2016 (the “Second Lien Collateral Documents”); 
 WHEREAS, Wilmington Trust, National Association,
as first lien collateral agent named therein and the Second Lien Collateral Agent named therein, and the borrowers and obligors named therein entered into an intercreditor agreement dated as of December 6, 2016 (the “Intercreditor
Agreement”); and 
 WHEREAS, the payment by the Company of all amounts due or in respect of the Second Lien Notes and the
performance of the Company under the Second Lien Notes Indenture and the Second Lien Collateral Agreement are guaranteed (the “Guarantees”) by each of the subsidiaries of the Company set forth on Exhibit A attached hereto
(the “Guarantors”). 
 NOW, THEREFORE, in consideration of the premises and the representations, warranties, covenants and
agreements herein contained and intending to be legally bound hereby, the Company and the Holders hereby agree as follows: 
 ARTICLE I

 EXCHANGE OF NOTES 

Section 1.1 Exchange of Exchanged Notes for Second Lien Notes. Subject to the terms and conditions set forth in
this Agreement, each Holder hereby agrees, on its behalf and on behalf of certain funds and/or accounts for which such Holder acts as 

 
investment advisor, to exchange (the “Exchange”) at the Closing (as defined below) the principal amount of the Exchanged Notes held by such Holder (or certain funds and/or
accounts for which such Holder acts as investment advisor), as set forth opposite such Holder’s name on Schedule I hereto, for the principal amount of Second Lien Notes as set forth opposite such Holder’s name on Schedule I
hereto, plus a net amount of accrued and unpaid interest as detailed on Schedule I hereto, net of any required tax withholdings in respect of accrued interest, if any, to the extent of such Holder’s failure to provide appropriate forms
showing that such Holder is not subject to withholding. Upon the surrender of the Exchanged Notes in exchange for the Second Lien Notes, all then outstanding principal amount of such Exchanged Notes, shall be deemed satisfied and such Exchanged
Notes shall be cancelled, and all accrued but unpaid interest on the Exchanged Notes up to and including the Closing Date (as defined below) shall be deducted from the amounts each Holder shall pay towards the accrued but unpaid interest on the
Second Lien Notes, as set forth opposite such Holder’s name on Schedule I hereto. Each Holder waives all rights to receive any future interest payments scheduled for its Exchanged Notes from and after the Closing. Following the Closing,
the Exchanged Notes exchanged pursuant to this Agreement shall be delivered to the Trustee for cancellation and cease to accrue interest. The principal amount of the Second Lien Notes to be issued shall be rounded to the nearest $1,000. 

Section 1.2 Withholding. The Company and Holders agree that the principal amount of Second
Lien Notes deliverable by the Company pursuant to the Exchange and all amounts payable by the Company in cash pursuant to the Exchange shall be free and clear of any withholdings or deductions for taxes pursuant to Section 1445 of the Code, and
the regulations thereunder. Each Holder agrees to severally indemnify and hold harmless the Company against any amounts imposed on the Company pursuant to Section 1445 of the Code, and the regulations thereunder, as a result of the
Company’s failure to withhold and remit any such taxes in respect of such Holder’s Exchanged Notes. 
 ARTICLE II 

CLOSING DATE; DELIVERY 

Section 2.1 Closing. The closing of the Exchange described in Article I shall take
place at the offices of Davis Polk & Wardwell LLP, 450 Lexington Avenue, New York, New York 10017 at 10:00 a.m., New York City time, on the date hereof or at such other place as shall be mutually agreed by the Company and the Holders
(which time and place are designated as the “Closing” and which day is referred to herein as the “Closing Date”). 

Section 2.2 Delivery for the Exchange. At the Closing, (a) the Company shall deliver to
The Depository Trust Company (“DTC”) or its custodian one or more global certificates representing the Second Lien Notes being issued in the Exchange, and (b) each Holder shall effect by book entry, in accordance with the
applicable procedures of DTC and the terms of the 2024 Notes Supplemental Indenture, as applicable, the delivery to the Company (or to its designee which may be the Second Lien Trustee for the benefit of the Company), the Exchanged Notes held by
such Holder (or certain funds and/or accounts for which such Holder acts as investment advisor) as set forth opposite such 

  
 2 

 
Holder’s name on Schedule I and such Exchanged Notes shall be cancelled by the Trustee under the relevant indenture or the amount outstanding under global certificates representing
the 2024 Notes, as applicable, shall be decreased by the respective amounts of Exchanged Notes delivered. 

Section 2.3 Consummation of Closing. All acts, deliveries and confirmations comprising the
Closing, regardless of chronological sequence, shall be deemed to occur contemporaneously and simultaneously upon the occurrence of the last act, delivery or confirmation of the Closing and none of such acts, deliveries or confirmations shall be
effective unless and until the last of same shall have occurred. 
 Section 2.4 No Transfer of
Exchanged Notes After the Closing; No Further Ownership Rights in the Exchanged Notes. Upon consummation of the Closing, all Exchanged Notes (or interests therein) exchanged pursuant to this Agreement shall cease to be transferable and there
shall be no further registration of any transfer of any such Exchanged Notes or interests therein. From and after the Closing, the Holders shall cease to have any rights with respect to such Exchanged Notes, including any payments of accrued and
unpaid interest, except as otherwise provided for herein or by applicable law. Upon consummation of the Closing the Exchanged Notes shall be deemed cancelled and no longer outstanding. 

ARTICLE III 

REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE GUARANTORS 

The Company and each of the Guarantors represents and warrants to each of the Holders as follows: 

Section 3.1 Organization and Good Standing of the Company and its Subsidiaries. The Company is
a corporation duly formed, validly existing and in good standing under the laws of the state of Delaware and has all requisite corporate power and authority to own, lease and operate its properties, and to enter into this Agreement and perform its
obligations hereunder. Each subsidiary of the Company has been duly formed and is validly existing and in good standing (or equivalent status to the extent applicable in the relevant jurisdiction) under the laws of the jurisdiction of its formation
and has all requisite power and authority to own, lease and operate its properties and to enter into this Agreement and perform its obligations hereunder. The Company and each of its subsidiaries is duly qualified to do business and is in good
standing in all jurisdictions wherein such qualification is necessary, except where failure so to qualify would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on the business, properties, management,
operations or prospects, financial condition, results of operations of the Company and its subsidiaries, taken as a whole (a “Material Adverse Effect”). 

Section 3.2 Exchange Agreement and Other Transaction Documents. This Agreement, the Second
Lien Notes Indenture, the Intercreditor Agreement, the Second Lien Collateral Documents, and the other agreements and instruments contemplated hereby and thereby (collectively, the “Transaction Documents”), copies of which have

  
 3 

 
been previously provided to the Holders, have been duly and validly authorized by the Company and the Guarantors party thereto, and the Transaction Documents have been duly executed and delivered
by the Company and the Guarantors and the Transaction Documents, assuming due authorization, execution and delivery by the other parties thereto, are valid and binding obligations of the Company and the Guarantors party thereto, enforceable in
accordance with their respective terms, subject as to enforceability to general principles of equity and to bankruptcy, insolvency, moratorium and other similar laws affecting the enforcement of creditors’ rights generally, and except that the
enforceability of any indemnification or contribution provisions thereof may be limited under applicable securities laws or the public policies underlying such laws. 

Section 3.3 Second Lien Notes. The Second Lien Notes have been duly and validly authorized by
the Company, and when the Second Lien Notes are executed by the Company and authenticated and delivered in exchange for the Exchanged Notes pursuant to this Agreement and the Second Lien Notes Indenture at the Closing, the Second Lien Notes will be
valid and binding obligations of the Company, enforceable in accordance with their terms, subject as to enforceability to general principles of equity and to bankruptcy, insolvency, moratorium and other similar laws affecting the enforcement of
creditors’ rights generally. 
 Section 3.4
Non-Contravention. The execution and delivery by the Company of this Agreement and the other Transaction Documents and each other agreement and transaction contemplated hereby or thereby to which the
Holders are a party, do not and will not (i) result in any violation of any terms of the charter or certificate of formation or by-laws or limited liability company agreement, as applicable, of the
Company or any of its subsidiaries; (ii) conflict with or result in a breach by the Company or any of its subsidiaries of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust or other material
agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company, its subsidiaries or any of their respective properties or assets is bound or affected or (iii) violate or contravene any applicable law,
rule or regulation or any applicable decree, judgment or order of any government or political subdivision thereof, whether federal, state, local or foreign, or any agency or instrumentality of any such government or political subdivision thereof (a
“Governmental Body”) or court having jurisdiction over the Company or any of its or its subsidiaries’ properties or assets, except, in the case of (ii) and (iii), as would not, materially and adversely affect the ability
of the Company or the Guarantors to perform its obligations under the Transaction Documents, or which are otherwise material in the context of the issuance or sale of the Second Lien Notes. 

Section 3.5 Consents. No consent, approval, authorization, or order of, or filing with, any
Governmental Body or any court is required for the consummation of the transactions contemplated by the Transaction Documents in connection with the issuance of the Second Lien Notes by the Company, except for (i) as have been obtained or
(ii) as may be required under applicable state securities laws. 
 Section 3.6
Subsidiaries. The Company has good title to all outstanding capital stock or limited liability company interests of its subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity other than

  
 4 

 
Liens granted under the Second Lien Collateral Documents and the First Lien Collateral Documents (as defined below) and other liens permitted under the Second Lien Notes Indenture and the First
Lien Notes Indenture (as defined below, and all such capital stock is duly issued, fully paid and non-assessable, to the extent applicable. None of the outstanding shares of capital stock of any subsidiary
were issued in violation of the preemptive or similar rights of any securityholder of such subsidiary. 

Section 3.7 General Solicitation. None of the Company, its Affiliates, nor, to the knowledge
of the Company, any person acting on their behalf (i) has, within the six-month period prior to the date hereof, offered or sold in the United States or to any U.S. person (as such terms are defined in
Regulation S under the Securities Act of 1933, as amended (the “Securities Act”)) the Second Lien Notes, or any security of the same class or series as the Second Lien Notes or (ii) has offered or will offer or sell the Second
Lien Notes in the United States by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) under the Securities Act. 

Section 3.8 DTC. The Second Lien Notes have been declared eligible for clearance and
settlement through DTC and have been delivered to the custodian of DTC for distribution to the accounts of applicable DTC participants for each Holder. 

Section 3.9 No Registration. Assuming the accuracy of, and compliance with, the
representations and warranties of the Holders set forth in Article IV hereof, the offer and sale of the Second Lien Notes to the Holders in the manner contemplated by this Agreement will be exempt from the registration requirements of the Securities
Act by reason of Section 4(a)(2) thereof; and it is not necessary to qualify the Second Lien Notes Indenture under the Trust Indenture Act of 1939, as amended. 

Section 3.10 No Default. No Default or Event of Default (as such terms are defined in the
Second Lien Notes Indenture) exists or would result from (i) the execution and delivery by the Company and its subsidiaries of this Agreement and the other Transaction Documents and each other agreement and transaction contemplated hereby or
thereby or (ii) the grant or perfection of the Liens on the Collateral (as defined in the Second Lien Notes Indenture) in favor of the Second Lien Collateral Agent. 

Section 3.11 Sufficient Capital. All indebtedness represented by the Second Lien Notes is
being incurred for proper purposes and in good faith; at the Closing, after giving pro forma effect to the Exchange and other good faith assumptions of the Company, the Company and its subsidiaries, taken as a whole on a consolidated basis, will
have sufficient capital for carrying on their business. 
 ARTICLE IV 

REPRESENTATIONS AND WARRANTIES OF THE HOLDERS 

Each Holder represents and warrants, severally and not jointly, to the Company as follows: 

Section 4.1 Organization and Standing of Holders. Each Holder is duly organized, validly
existing and in good standing under the laws of its jurisdiction of its incorporation or formation and has all requisite power and authority to enter into this Agreement and perform its obligations hereunder. 

  
 5 

 Section 4.2 Exchange Agreement and Other Transaction
Documents. This Agreement and each other agreement contemplated hereby to which each Holder is a party has been duly and validly authorized by such Holder. This Agreement has been duly executed and delivered by each Holder, and, assuming due
authorization, execution and delivery by the other parties hereto,this Agreement is a valid and binding obligation of each Holder enforceable in accordance with its terms, subject as to enforceability to general principles of equity and to
bankruptcy, insolvency, moratorium and other similar laws affecting the enforcement of creditors’ rights generally, and except that the enforceability of any indemnification or contribution provisions thereof may be limited under applicable
securities laws or the public policies underlying such laws. 
 Section 4.3 Non-Contravention. The execution and delivery by each Holder of this Agreement and the other documents and transactions contemplated hereby and each other agreement contemplated hereby to which such Holder is a
party, do not and will not (i) result in any violation of any terms of the charter documents of such Holder; (ii) conflict with or result in a breach by such Holder of any of the terms or provisions of, or constitute a default under, any
indenture, mortgage, deed of trust or other material agreement or instrument to which such Holder is a party or by which such Holder or any of its properties or assets is bound or affected or (iii) violate or contravene any applicable law, rule
or regulation or any applicable decree, judgment or order of any Governmental Body or court having jurisdiction over such Holder or any of its properties or assets, except, in the case of (ii) and (iii), as would not, individually or in the
aggregate, reasonably be expected to have a material adverse effect on the business, properties, operations, financial condition or results of operations of such Holder and its subsidiaries, taken as a whole. 

Section 4.4 Ownership. Each Holder is (i) the sole beneficial owner and/or the investment
advisor, authorized representative or manager for the beneficial owners of the Exchanged Notes, the principal amount of which is set forth next to its name on Schedule I hereto, having the power to vote and dispose of such Exchanged Notes on
behalf of such beneficial owners and (ii) entitled (for its own account or for the account of certain funds and/or accounts for which it acts as investment advisor) to all of the rights and economic benefits of such Exchanged Notes. There are
no outstanding agreements, arrangements or understandings under which such Holder, its nominee or the beneficial owners of the Exchanged Notes for which such Holder acts as investment advisor may be obligated to transfer any of the Exchanged Notes,
other than this Agreement. Each Holder has full power and authority to enter into this Agreement, make the representations and warranties set forth herein and transfer the Exchanged Notes in accordance with the terms hereof on behalf of the
beneficial owners of the Exchanged Notes, the principal amount of which is set forth next to its name on Schedule I hereto. 

Section 4.5 Transfers. Each Holder (and the beneficial owners of the Exchanged Notes for which
such Holder acts as investment advisor) has made no prior assignment, sale, participation, grant, conveyance or other transfer of, and has not entered into any other agreement to assign, sell, participate, grant or otherwise transfer (except

  
 6 

 
for liens or encumbrances in favor of a broker dealer over property in an account with such dealer generally in which an encumbrance is released upon transfer), in whole or in part, any portion
of its right, title or interests in the Exchanged Notes it beneficially owns, subject to this Agreement, that is inconsistent with the representations and warranties made in Section 4.4 above or that would render such
Holder (and the beneficial owners of the Exchanged Notes for which such Holder acts as investment advisor) otherwise unable to comply with its obligations under this Agreement. 

Section 4.6 Liens. The Exchanged Notes held by each Holder (or the beneficial owners of the
Exchanged Notes for which such Holder acts as investment advisor, as the case may be) are not subject to any lien, pledge, mortgage, security interest, charge, option or other encumbrance of adverse claim of any kind (a “Lien”),
except for liens or encumbrances in favor of a broker dealer over property in an account with such dealer generally in which an encumbrance is released upon transfer. The execution and delivery of, and the performance by each Holder of its
obligations under, this Agreement, will not result in the creation of any Lien upon the Exchanged Notes held by such Holder (or the beneficial owners of the Exchanged Notes for which such Holder acts as investment advisor, as the case may be). Upon
the consummation of the Exchange, the Company will acquire the Exchanged Notes to be exchanged by each Holder (or the beneficial owners of the Exchanged Notes for which such Holder acts as investment advisor, as the case may be) free and clear of
any Lien. 
 Section 4.7 No Illegal Transactions. Each of the Holders has not, directly or
indirectly, and no person acting on behalf of or pursuant to any understanding with it has, disclosed to a third party any information regarding the Exchange or engaged in any transactions in the securities of the Company (including, without
limitation, any Short Sales (as defined below) involving any of the Company’s securities) since the time that such Holder became restricted from trading in the Company’s securities. Each of the Holders covenants that neither it nor any
person acting on its behalf or pursuant to any understanding with it will disclose to a third party any information regarding the Exchange or engage, directly or indirectly, in any transactions in the securities of the Company (including Short
Sales) prior to the time the transactions contemplated by this Agreement are publicly disclosed by the Company. “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 of Regulation SHO
promulgated under the Exchange Act and all types of direct and indirect stock pledges, forward sale contracts, options, puts, calls, short sales, swaps, derivatives and similar arrangements (including on a total return basis), and sales and other
transactions through non-U.S. broker-dealers or foreign regulated brokers. Solely for purposes of this Section 4.7, subject to each Holder’s compliance with its obligations under
the U.S. federal securities laws and such Holder’s internal policies, (i) “Holder” shall not be deemed to include any employees, subsidiaries, desks, groups or Affiliates of each Holder that are effectively walled off by
appropriate “Fire Wall” information barriers approved by such Holder’s respective legal or compliance department (and thus such walled off parties have not been privy to any information concerning the Exchange), and (ii) the
foregoing representations and covenants of this Section 4.7 shall not apply to any transaction by or on behalf of an account, desk or group that was effected without the advice or participation of, or such account’s,
desk’s or group’s receipt of information regarding the Exchange provided by such Holder. 

  
 7 

 Section 4.8 Investment Experience. Each Holder
has such knowledge and experience in financial and business affairs that such Holder is capable of evaluating the merits and risks of an investment in the Second Lien Notes. Each Holder (and each beneficial owner of the Exchanged Notes for which
such Holder acts as investment advisor) is an “accredited investor,” within the meaning of Rule 501 promulgated by the Securities and Exchange Commission (the “Commission”) under the Securities Act, and a “qualified
institutional buyer” as defined in Rule 144A under the Securities Act. Each Holder (and each beneficial owner of the Exchanged Notes for which such Holder acts as investment advisor) will acquire the Second Lien Notes for its own account (or
for the account of certain funds and/or accounts for which such Holder acts as investment advisor), for investment, and not with a view to or for sale in connection with any distribution thereof in violation of the registration provisions of the
Securities Act or the rules and regulations promulgated thereunder. Each Holder (and each beneficial owner of the Exchanged Notes for which such Holder acts as investment advisor) understands that the Second Lien Notes are being issued to it in
reliance on specific exemptions from the registration requirements of United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and each Holder’s compliance (and the compliance of each
beneficial owner of the Exchanged Notes for which such Holder acts as investment advisor) with, the representations, warranties, agreements, acknowledgments and understandings of such Holder (on its own behalf and on behalf of each beneficial owner
of the Exchanged Notes for which such Holder acts as investment advisor) set forth herein in order to determine the availability of such exemptions and the eligibility of such Holder (and each beneficial owner of the Exchanged Notes for which such
Holder acts as investment advisor) to acquire the Second Lien Notes. Each Holder (and each beneficial owner of the Exchanged Notes for which such Holder acts as investment advisor) acknowledges that no representations, express or implied, are being
made with respect to the Company, the Second Lien Notes, or otherwise, other than those expressly set forth herein. In making its decision to invest in the Second Lien Notes hereunder, such Holder has relied upon independent investigations made by
such Holder and, to the extent believed by such Holder to be appropriate, such Holder’s representatives, including such Holder’s own professional, tax and other advisors. Each Holder and its representatives have been given the opportunity
to ask questions of, and to receive answers from, the Company and its representatives concerning the terms and conditions of the investment in the Second Lien Notes. Each Holder has reviewed, or has had the opportunity to review, all information it
deems necessary and appropriate for such Holder to evaluate the financial risks inherent in an investment in the Second Lien Notes and has had sufficient time to evaluate the Exchange. Each Holder (and each beneficial owner of the Exchanged Notes
for which such Holder acts as investment advisor) understands that its investment in the Second Lien Notes involves a high degree of risk and that no Governmental Body has passed on or made any recommendation or endorsement of the Second Lien Notes.

 Section 4.9 Company Information. Each Holder understands and acknowledges that
(A) the Company has information that has not been publicly disclosed concerning the Company, its subsidiaries and affiliates, including, but not limited to, the general business, plans and prospects of the Company, its subsidiaries and
affiliates as well as possible future financings and other transactions or changes in the Company’s capital structure (the “Information”) and (B) such Information may be indicative of or

  
 8 

 
affect the value of the Exchanged Notes or the Second Lien Notes. The Holder has not requested to be provided with the Information, has not received the Information, and acknowledges that the
Information might be material to its decision to enter into the Exchange or otherwise materially adverse to its interests. 

Section 4.10 Restricted Securities. Each Holder has been advised by the Company that
(i) the offer and sale of the Second Lien Notes has not been registered under the Securities Act; (ii) the offer and sale of the Second Lien Notes is intended to be exempt from registration under the Securities Act pursuant to Section
4(a)(2) under the Securities Act; and (iii) there is currently no established market for the Second Lien Notes. Each Holder is familiar with Rule 144 promulgated by the Commission under the Securities Act, as presently in effect, and
understands the resale limitations imposed thereby and by the Securities Act. Each Holder (and each beneficial owner of the Exchanged Notes for which such Holder acts as investment advisor) will only sell or otherwise transfer the Second Lien Notes
in accordance with the Second Lien Notes Indenture. None of the Holders is an “affiliate” (as that term is defined in Rule 144(a)(1) under the Securities Act) of the Company or has been an “affiliate” of the Company during the
preceding three (3) months of the date hereof. 
 ARTICLE V 

CLOSING DELIVERABLES OF THE COMPANY 

In addition to those items described in Section 2.3, the obligation of each Holder to exchange the Exchanged Notes
for the Second Lien Notes is conditioned upon the delivery of the following (any or all of which may be waived by such Holder in its sole discretion): 

(a) a certificate of the Company and each Guarantor dated as of the Closing Date and executed by an officer of such obligor, which shall
(A) certify that attached thereto is a true and complete copy of the resolutions, written consents or extracts of minutes of a meeting, as applicable, of the its board of directors, board of managers, shareholders, members or other governing
body (as the case may be and in each case, to the extent required) authorizing the execution, delivery and performance of the Transaction Documents to which it is a party, (B) identify by name and title and bear the signatures of the officers
or authorized signatories of such obligor that is authorized to sign the Transaction Documents to which it is a party on the Closing Date, as applicable and (C) certify (I) that attached thereto is a true and complete copy of the certificate or
articles of incorporation or organization (or memorandum of association, articles of association or other equivalent thereof) of such obligor on the Closing Date (in the case of any U.S. obligor, certified by the relevant authority of the
jurisdiction of organization of such obligor) and a true and correct copy of its by-laws or operating, management, partnership or similar agreement (to the extent applicable) and (II) that such documents
or agreements have not been amended (except as otherwise attached to such certificate and certified therein as being the only amendments thereto as of such date); 

(b) a good standing certificate (or other equivalent) for the Company and each Guarantor dated as of a recent date for the Company and each
such Guarantor from its jurisdiction of organization; and 
 (c) a legal opinion of Davis Polk & Wardwell LLP, counsel for the
Company, in the form of Exhibit B hereto. 

  
 9 

 ARTICLE VI 

CLOSING DELIVERABLES OF THE HOLDERS 

Section 6.1 In addition to those items described in Section 2.3, the obligation of the Company
to exchange the Exchanged Notes for the Second Lien Notes is conditioned upon the delivery of each Holder’s payment of the net amount of accrued and unpaid interest in the amount as set forth opposite such Holder’s name on Schedule
I (which may be waived by the Company in its sole discretion). 
 ARTICLE VII 

CERTAIN COVENANTS AND AGREEMENTS OF THE PARTIES 

Section 7.1 Further Actions by Holder. Each Holder shall, at the written request of the
Company, at any time and from time to time following the Closing, execute and deliver to the Company all such further instruments and take all such further action as may be reasonably necessary or appropriate in order to confirm or carry out its
obligations under this Agreement. 
 Section 7.2 Transfer Restrictions. During the period
from the Closing Date through and including June 1, 2017, the Holders will not, without the prior written consent of the Company, offer, sell, contract to sell or otherwise dispose of any Second Lien Notes received by the Holders in the
Exchange at the Closing (CUSIP Numbers 19075F AJ5 and U19116 AF6). For the avoidance of doubt, nothing in this paragraph shall restrict the Holders’ ability to purchase, sell or otherwise transact in any securities previously issued by the
Company and outstanding on the date hereof, including any 2024 Notes or Second Lien Notes previously issued by the Company with CUSIP identifiers as follows: 
  

					
	 Security
	  	 Distribution
	  	 CUSIP Number

	2024 Notes	  	Registered	  	19075F AB2
			
	Second Lien Notes	  	144A	  	19075F AH9; 19075F AG1; 19075F ACO
	  	Regulation S	  	U19116 AE9; U19116 AD1; U19116 AA7

 Section 7.3 Additional Interest Payment. The Company agrees to
pay to the Holders the accrued interest on the Second Lien Notes issued to the Holders on the Closing Date from December 6, 2016 to June 1, 2017, which amount is detailed on Schedule I attached hereto. Payment shall be made by means of
wire transfer on June 1, 2017 in immediately available funds to an account or accounts previously identified by the Holders in writing not later than May 31, 2016. 

  
 10 

 Section 7.4 Further Action by the Company. The
Company shall, at the written request of any Holder, at any time and from time to time following the Closing execute and deliver to such Holder all such further instruments and take all such further action as may be reasonably necessary or
appropriate in order to confirm or carry out its obligations under this Agreement. 
 Section 7.5
Best Efforts. The Company and the Holders shall use their respective best efforts (subject to standards of commercial reasonableness) to consummate the transactions contemplated to be performed by it under this Agreement. 

Section 7.6 Tax Treatment. The parties intend that the exchange of the Exchanged Notes for the
Second Lien Notes be treated as a reorganization pursuant to Section 368 of the Internal Revenue Code of 1986, as amended, and the parties shall file all applicable tax returns in a manner consistent with such tax treatment, unless otherwise
required by applicable law. 
 Section 7.7 Publicity. The Company will provide the Holders
with a copy of the Current Report on Form 8-K that it intends to file with the Commission relating to the Exchange at least one business day prior to filing such Current Report on Form 8-K with the Commission. 
 ARTICLE VIII 

TERMINATION 

Section 8.1 Termination. Notwithstanding anything in this Agreement to the contrary, this
Agreement may be terminated and the transactions contemplated by this Agreement abandoned at any time prior to the Closing by any party if the transactions contemplated by this Agreement are not consummated in accordance with their terms within
15 days after the date hereof; provided, however, that a party hereto shall not have the right to terminate this Agreement if the failure to consummate the transactions contemplated by this Agreement shall be primarily attributable to such
party’s failure to satisfy its obligations hereunder; provided further that the provisions of Sections 7.5 and 9.1 shall survive any such termination of this Agreement. 

ARTICLE IX 

INDEMNIFICATION 

Section 9.1 Indemnification. 

(a) The Company and the Guarantors jointly and severally agree to indemnify and hold harmless each Holder and its affiliates, and in each
case, their respective officers, directors, employees, controlling persons (within the meaning of the Securities Act or the Exchange Act) and agents (each, an “Indemnified Holder”), against any loss, claim, damage, liability or out-of-pocket expense (including reasonable attorneys’ fees), as incurred, if any (collectively, “Losses”), arising out of or relating to this Agreement
and the transactions contemplated hereby, other than Losses relating to (i) taxes, (ii) to the extent finally determined by a court of competent jurisdiction to have resulted from the bad faith, gross negligence or willful misconduct of such
Indemnified Holder, from a willful and material breach by a Holder of its 

  
 11 

 
obligations under this Agreement or from a claim solely among the Indemnified Holders or (iii) a claim brought by or on behalf of another holder of the 2024 Notes to the extent arising from
actions taken by any Indemnified Holder prior to the date of this Agreement that has not been disclosed to the Company prior to the date hereof. 

(b) Promptly after receipt by an Indemnified Holder under this Section 9.1 of notice of the commencement of any
action, such Indemnified Holder will, if a claim in respect thereof is to be made against the Company under this Section 9.1, notify the Company in writing of the commencement thereof, but the failure to notify the Company
will not relieve it from liability under paragraph (a) above unless and to the extent it did not otherwise learn of such action and such failure results in the forfeiture by the Company of substantial rights and defenses. In case any such
action is brought against any Indemnified Holder and such Indemnified Holder seeks or intends to seek indemnity from the Company, the Company will be entitled to participate in, and, to the extent that it shall elect, by written notice delivered to
the Indemnified Holder promptly after receiving the aforesaid notice from such Indemnified Holder, to assume the defense thereof; provided, however, if the defendants in any such action include both the Indemnified Holder and the Company and the
Company or the Indemnified Holder shall have reasonably concluded that a conflict may arise between the positions of the Company and the Indemnified Holder in conducting the defense of any such action or that there may be legal defenses available to
them and/or other Indemnified Holders that are different from or additional to those available to the Company, the Indemnified Holder or Holders shall have the right to select separate counsel to assume such legal defenses and to otherwise
participate in the defense of such action on behalf of such Indemnified Holder or Holders. Upon receipt of notice from the Company to such Indemnified Holder of the Company’s election so to assume the defense of such action and approval by the
Indemnified Holder of counsel, the Company will not be liable to such Indemnified Holder for any legal or other expenses subsequently incurred by such Indemnified Holder in connection with the defense thereof unless (i) the Indemnified Holder
shall have employed separate counsel in accordance with the proviso to the preceding sentence (it being understood, however, that in connection with any such action the Company shall not be liable for the expenses of more than one separate counsel
(in addition to any local counsel) representing the Indemnified Holders who are parties to such action) or (ii) the Company shall not have employed counsel reasonably satisfactory to the Indemnified Holder to represent the Indemnified Holder
within a reasonable time after notice of commencement of the action. 
 (c) The Company shall not be liable for any settlement of any
proceeding effected without its written consent, which shall not be withheld unreasonably, but if settled with such consent or if there is a final judgment for the plaintiff, the Company agrees to indemnify the Indemnified Holder against any Loss by
reason of such settlement or judgment. The Company shall not, without the prior written consent of the Indemnified Holder, effect any settlement in any pending or threatened action, suit or proceeding in respect of which any Indemnified Holder is or
could have been a party and indemnity was or could have been sought hereunder by such Indemnified Holder, unless such settlement, compromise or consent (x) includes an unconditional release of such Indemnified Holder from all liability on
claims that are the subject matter of such action, suit or proceeding and (y) does not include a statement as to or an admission of fault, culpability or a failure to act, by or on behalf of any Indemnified Holder. 

(d) If the indemnification provided for in this Section 9.1 is for any reason unavailable to or otherwise
insufficient to hold harmless the Indemnified Holder in respect of any Loss referred to therein, then the Company shall contribute to the aggregate amount paid or payable by such Indemnified Holder, as incurred, as a result of any Loss referred to
therein: 
 (i) in such proportion as is appropriate to reflect the relative benefits received by the Company, on the one
hand, and the Holders, on the other hand, pursuant to this Agreement, or 
 (ii) if the allocation provided by
Section 9.1(d)(i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in Section 9.1(d)(i) above but also the
relative fault of the Company, on the one hand, and the Holders, on the other hand, as well as any other relevant equitable considerations. 

  
 12 

 The Company and each of the Holders agree that it would not be just and equitable if contribution pursuant to
this Section 9.1(d) were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations
referred to in this Section 9.1. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation. The Holders’ obligations to contribute as provided in this Section 9.1(d) are several and not joint. 

(e) The provisions of this Section 9.1 will survive the Closing. 

ARTICLE X 
 MISCELLANEOUS

 Section 10.1 Survival of Representations. The representations, warranties, covenants
and agreements of the Company and each of the Holders contained in this Agreement or in any certificate furnished hereunder shall survive the Closing. 

Section 10.2 Prior Agreements. This Agreement constitutes the entire agreement between the
parties concerning the subject matter hereof and supersedes any prior representations, understandings or agreements. There are no representations, warranties, agreements, conditions or covenants, of any nature whatsoever (whether express or implied,
written or oral) between the parties hereto with respect to such subject matter except as expressly set forth herein. 

Section 10.3 Severability. The invalidity or unenforceability of any provision hereof shall in
no way affect the validity or enforceability of any other provision or the validity and enforceability of this Agreement in any other jurisdiction. 

Section 10.4 Governing Law; Jurisdiction. This Agreement shall in all respects be construed in
accordance with and governed by the substantive laws of the State of New York, without reference to its choice of law rules. All actions or proceedings arising out of or relating to this Agreement shall be heard and determined exclusively in any
federal court of the United States of America sitting in the City of New York, Borough of Manhattan; provided, however, that if such federal court does not have jurisdiction over such action or proceeding, such action or proceeding shall be heard
and 

  
 13 

 
determined exclusively in any state court sitting in the City of New York, Borough of Manhattan. Consistent with the preceding sentence, the parties hereto hereby (a) submit to the exclusive
jurisdiction of any federal or state court sitting in City of New York, Borough of Manhattan, for the purpose of any action or proceeding arising out of or relating to this Agreement brought by any party hereto and (b) irrevocably waive, and
agree not to assert by way of motion, defense, or otherwise, in any such action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or
execution, that the action or proceeding is brought in an inconvenient forum, that the venue of the action or proceeding is improper, or that this Agreement or the transactions contemplated by this Agreement may not be enforced in or by any of the
above-named courts. 
 Section 10.5 Waiver of Jury Trial. EACH PARTY HERETO HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY
(WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PERSON HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PERSON WOULD NOT, IN THE EVENT OF
LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION. 

Section 10.6 Headings. Section headings in this Agreement are included herein for convenience
of reference only and shall not constitute a part of, or affect the interpretation of, this Agreement. 

Section 10.7 Certain Definitions. Capitalized terms in this Agreement shall have the meanings
specified below, or as specified elsewhere in this Agreement, for all purposes hereof. The following terms, as used in this Agreement, shall have the meanings as set forth below: 

(a) “Affiliate” means, with respect to a specified person, another person that directly, or indirectly through one or more
intermediaries, Controls or is Controlled by or is under common Control with such specified person. 
 (b) “Control” means
the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of a person, whether through the ability to exercise voting power, by contract or otherwise. “Controlling” and
“Controlled” have meanings correlative thereto. 
 (c) “First Lien Collateral Documents” means those certain
collateral documents related to the First Lien Indenture. 

  
 14 

 (d) “First Lien Indenture” means the Indenture, dated December 6, 2016
among the Company, the Guarantors and Wilmington Trust, National Association, as trustee and collateral agent, governing the 10.75% First Lien Senior Secured Notes due 2021 of the Company. 

Section 10.8 Counterparts. This Agreement may be executed in any number of counterparts, all
of which taken together shall constitute one and the same instrument, and either of the parties hereto may execute this Agreement by signing any such counterpart. A facsimile transmission of this Agreement bearing a signature on behalf of a party
hereto shall be legal and binding on such party. 
 Section 10.9 Assignment; Binding Effect.
Each Holder shall not convey, assign or otherwise transfer any of its rights or obligations under this Agreement without the express written consent of the Company, and the Company shall not convey, assign or otherwise transfer any of its rights and
obligations under this Agreement without the express written consent of each Holder. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and permitted assigns. 

Section 10.10 Waiver; Remedies. No delay on the part of any Holder or the Company in
exercising any right, power or privilege under this Agreement shall operate as a waiver thereof, nor shall any waiver on the part of any Holder or the Company of any right, power or privilege under this Agreement operate as a waiver of any other
right, power or privilege of such party under this Agreement, nor shall any single or partial exercise of any right, power or privilege under this Agreement preclude any other or further exercise thereof or the exercise of any other right, power or
privilege under this Agreement. 
 Section 10.11 Specific Performance. The parties hereto
agree that irreparable damage would occur if any provision of this Agreement were not performed in accordance with the terms hereof and that the parties shall be entitled to an injunction or injunctions to prevent breaches of this agreement or to
enforce specifically the performance of the terms and provisions hereof in addition to any other remedy to which they are entitled at law or in equity. 

Section 10.12 Amendment. This Agreement may be modified or amended only by written agreement
of each of the parties to this Agreement. 
 Section 10.13 Notice. Any notice or
communications hereunder shall be in writing and shall be deemed to have been given if delivered in person or by electronic transmission or by registered or certified first-class mail or courier service, to the following addresses, or such other
addresses as may be furnished hereafter by notice in writing, as follows 
 if to the Company: 

Cobalt International Energy, Inc. 

Cobalt Center 
 920 Memorial City
Way, Suite 100 
 Houston, Texas 77024 

Attention: General Counsel 

Email: jeff.starzec@cobaltintl.com 

  
 15 

 With a copy to: 

Davis Polk & Wardwell LLP 

450 Lexington Avenue 
 New York,
N.Y. 10017 
 Attention: Byron B. Rooney 

Facsimile: (212) 701-5658 

Email: byron.rooney@davispolk.com 

if to the Holders: 
 [Holder
Address] 
 IN WITNESS WHEREOF, the parties hereto, intending to be legally bound, have caused this Agreement to be executed by their
respective duly authorized officers, as of the date first above written. 

  
 16 

 
			
	COBALT INTERNATIONAL ENERGY, INC.
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer
	
	COBALT INTERNATIONAL ENERGY GP, LLC
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer
	
	COBALT INTERNATIONAL ENERGY, L.P.
	By:	 	Cobalt International Energy GP, LLC, its general partner
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer
	
	COBALT GOM LLC
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer
	
	COBALT GOM #1 LLC
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer
	
	COBALT GOM #2 LLC
		
	By:	 	 /s/ David D. Powell

	Name:	 	David D. Powell
	Title:	 	Chief Financial Officer

  
 17 

 Date: May 18, 2017 

 

			
	NAME OF HOLDER
		
	By:	 	 /s/ Holder Representative

	Name:	 	
	Title:	 	Authorized Signatory

  
 18 

 Schedule I 

 Exhibit A 

List of Guarantors 
  

	1.	Cobalt International Energy GP, LLC 

  

	2.	Cobalt International Energy, L.P. 

  

	3.	Cobalt GOM LLC 

  

	4.	Cobalt GOM #1 LLC 

  

	5.	Cobalt GOM #2 LLC 

 Exhibit B 

Form of DPW Legal OpinionEX-10.2

 Exhibit 10.2 

THIRD SUPPLEMENTAL INDENTURE 

Third Supplemental Indenture (this “Third Supplemental Indenture”), dated as of May 18, 2017, among Cobalt International
Energy, Inc., a Delaware corporation (the “Company”), the Guarantors (as defined in the Indenture referred to below) party hereto and Wilmington Trust, National Association, as trustee and collateral agent (the
“Trustee”). 
 W I T N E S S E T H 

WHEREAS, Cobalt International Energy, Inc. has heretofore executed and delivered to the Trustee an Indenture, dated as of December 6,
2016 (as amended, modified or supplemented from time to time, including by this Third Supplemental Indenture, the “Indenture”), among the Company, the Guarantors and the Trustee, providing for the issuance of the Company’s
7.750% second-lien senior secured notes due 2023 (the “Notes”) and pursuant to which the Company has previously duly issued $902,590,000 aggregate principal amount of the Notes (the “Existing Notes”); 

WHEREAS, Section 2.01(b) of the Indenture provides that Additional Notes ranking pari passu with the Existing Notes may be created and
issued from time to time by the Company under the Indenture without notice to or consent of the Holders and that such Additional Notes shall be consolidated with and form a single class with the Existing Notes and shall have the same terms as to
status, redemption or otherwise (other than issue date and issue price) as the Existing Notes, subject to the Company’s compliance with Section 4.09 and 4.10 of the Indenture; 

WHEREAS, pursuant to Section 9.01(a)(8) of the Indenture, the Trustee, the Company and the Guarantors are authorized to execute and deliver
this Third Supplemental Indenture without the consent of the Holders of the Notes; 
 WHEREAS, the Company and the Guarantors have
authorized the execution and delivery of this Third Supplemental Indenture for the purpose of issuing $32,142,000 in aggregate principal amount of Additional Notes (the “New Notes”); and 

WHEREAS, the execution and delivery of this Third Supplemental Indenture has been duly authorized by the parties hereto, and all conditions
and requirements necessary to make this Third Supplemental Indenture a valid and binding agreement of the Company and the Guarantors enforceable in accordance with its terms have been duly performed and complied with. 

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged,
the parties mutually covenant and agree for the equal and ratable benefit of the Holders as follows: 
  

	 	(1)	Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 

 

	 	(2)	Execution and Delivery. The Company and each Guarantor hereby represent and warrant to and agree that each of them has all the requisite corporate power and authority to execute, deliver and perform its
obligations under this Third Supplemental Indenture and this Third Supplemental Indenture has been duly and validly executed and delivered and constitutes their legal, valid and binding obligation, enforceable against them in accordance with its
terms and the terms of the Indenture. 

	 	(3)	Additional Notes. As of the date hereof, the Company will issue, and the Trustee is directed to authenticate and deliver, the New Notes under the Indenture, substantially in the form of Exhibit A to the
Indenture; provided, that such New Notes shall be issued under separate CUSIP numbers from the Existing Notes. For the avoidance of doubt, (i) interest on the Notes shall accrue from the most recent date to which interest has been paid
or, if no interest has been paid, from and including June 1, 2017 and (ii) on or around the first anniversary of the issue date of the New Notes, the Company shall use reasonable efforts to (A) effect an exchange of every beneficial
interest in each Restricted Global Note representing the Additional Notes for beneficial interests in Global Notes that do not bear any Restricted Notes Legend and (B) to cause each such Global Note that does not bear any Restricted Notes
Legend to be identified by the same unrestricted CUSIP number in the facilities of the Depositary as that for the Global Notes, if any, that do not bear any Restricted Notes Legend representing the Existing Notes, in each case in accordance with and
subject to the qualifications and conditions set forth in Sections 2.2(e)(iii), (iv) and (v) of Appendix A of the Indenture. 

  

	 	(4)	Confirmation of Guarantees and Security Interests. The Company and each Guarantor hereby confirm that (i) the payment and performance obligations of the Guarantors under the Indenture, as modified or
supplemented hereby, shall continue to be in full force and effect and are hereby ratified and confirmed in all respects, (ii) the obligations under the New Notes will be and are secured equally and ratably by all Liens granted in connection
with the issuance of the Existing Notes, including by a valid and enforceable perfected second-priority Lien on the Collateral, subject to Permitted Liens, in favor of the Collateral Agent pursuant to and in accordance with the Security Documents,
at any time granted by the Company or any Guarantor to secure any Parity Lien Obligations whether or not upon property otherwise constituting collateral to such Parity Lien Obligations, and (iii) all Liens granted pursuant to the Security
Documents will be enforceable by the Collateral Agent for the benefit of the Holders. The Company and the Trustee acknowledge and agree that the New Notes shall constitute Second Lien Notes for all purposes under the Intercreditor Agreement, and as
such the Holders of the New Notes shall be entitled to all the rights and benefits under and shall be subject in all other applicable respects to the provisions of the Intercreditor Agreement, including the provisions relating to the ranking of
Liens and the order of application of proceeds from the enforcement of Liens. The Company and the Guarantors hereby reaffirm and direct the Collateral Agent to perform its obligations under the Intercreditor Agreement and the Second Lien Security
Documents. The Trustee is hereby authorized and directed to execute and deliver the Second Lien Joinder to the Intercreditor Agreement, and the Holders of the New Notes, by their acceptance of the New Notes, affirm such authorization and direction.

  

	 	(5)	Governing Law. THIS THIRD SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 

 

	 	(6)	Counterparts. The parties may sign any number of copies of this Third Supplemental Indenture. Each signed copy, which may be delivered by facsimile or PDF transmission, shall be an original, but all of them
together represent the same agreement. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes. 

	 	(7)	Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof. 

  

	 	(8)	The Trustee. The Trustee accepts the amendment of the Indenture effected by this Third Supplemental Indenture, but only upon the terms and conditions set forth in this Third Supplemental Indenture. The Trustee
shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Third Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Company and
the Guarantors. 

  

	 	(9)	Ratification of Indenture; Third Supplemental Indenture Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions
thereof shall remain in full force and effect. This Third Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby.

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

					
	COBALT INTERNATIONAL ENERGY, INC.
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer
	
	COBALT INTERNATIONAL ENERGY L.P.
	
	By: COBALT INTERNATIONAL ENERGY GP, LLC, its general partner
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer
	
	COBALT INTERNATIONAL ENERGY GP, LLC
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer
	
	Cobalt GOM LLC
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer
	
	COBALT GOM #1 LLC
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer
	
	COBALT GOM #2 LLC
		
	By:	 	 /s/ David D. Powell

		 	Name:	 	David D. Powell
		 	Title:	 	Chief Financial Officer

 [Signature Page to Third Supplemental Indenture] 

 
					
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 /s/ Jane Y. Schweiger

		 	Name:	 	Jane Y. Schweiger
		 	Title:	 	Vice President
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Collateral Agent
		
	By:	 	 /s/ Jane Y. Schweiger

		 	Name:	 	Jane Y. Schweiger
		 	Title:	 	Vice President

 [Signature Page to Third Supplemental Indenture]

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00271-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00271-of-00352.parquet"}]]