Case Document 803 Filed in TXSB on 04/09/18 Page 1 of 5

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1 Case Document 803 Filed in TXSB on 04/09/18 Page 1 of 5 IN THE UNITED STATES BANKRUPTCY COURT FOR THE SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION ) In re: ) Chapter 11 ) COBALT INTERNATIONAL ENERGY, INC., et al., 1 ) Case No (MI) ) Debtors. ) (Jointly Administered) ) NOTICE OF FILING OF FOURTH AMENDED PLAN SUPPLEMENT PLEASE TAKE NOTICE THAT on March 8, 2018, the United States Bankruptcy Court for the Southern District of Texas entered an order [Docket No. 563] (the Disclosure Statement Order ): (a) authorizing and its affiliated debtors and debtors in possession (collectively, the Debtors ), to solicit acceptances for the Fourth Amended Joint Chapter 11 Plan of and Its Debtor Affiliates [Docket No. 561] (as may be modified, amended, or supplemented from time to time, the Plan ), 2 (b) approving the Disclosure Statement for the Fourth Amended Joint Chapter 11 Plan of and Its Debtor Affiliates [Docket No. 562] (the Disclosure Statement ) as containing adequate information pursuant to section 1125 of the Bankruptcy Code, (c) approving the solicitation materials and documents to be included in the solicitation packages, and (d) approving procedures for soliciting, receiving, and tabulating votes on the Plan and for filing objections to the Plan. PLEASE TAKE FURTHER NOTICE THAT as contemplated by the Plan and the Disclosure Statement Order, the Debtors filed the Plan Supplement for the Joint Chapter 11 Plan of and Its Debtor Affiliates [Docket No. 612] (the Original Plan Supplement ) with the Court on March 21, PLEASE TAKE FURTHER NOTICE THAT as contemplated by the Plan and the Disclosure Statement Order, the Debtors filed the Notice of Filing of First Amended Plan Supplement [Docket No. 686] (the First Amended Plan Supplement ) with the Court on March 29, PLEASE TAKE FURTHER NOTICE THAT as contemplated by the Plan and the Disclosure Statement Order, the Debtors filed the Notice of Filing of Second Amended Plan Supplement [Docket No. 752] (the Second Amended Plan Supplement ) with the Court on April 3, The Debtors in these chapter 11 cases, along with the last four digits of each Debtor s federal tax identification number, are: (1169); Energy GP, (7374); Cobalt International (2411); Cobalt GOM (7188); Cobalt GOM # 1 (7262); and Cobalt GOM # 2 (7316). The Debtors service address is: 920 Memorial City Way, Suite 100, Houston, Texas Capitalized terms not otherwise defined herein shall have the same meanings as set forth in the Plan.

2 Case Document 803 Filed in TXSB on 04/09/18 Page 2 of 5 PLEASE TAKE FURTHER NOTICE THAT as contemplated by the Plan and the Disclosure Statement Order, the Debtors filed the Notice of Filing of Third Amended Plan Supplement [Docket No. 762] (the Third Amended Plan Supplement ) with the Court on April 4, PLEASE TAKE FURTHER NOTICE THAT the Debtors hereby file this Fourth Amended Plan Supplement (the Fourth Amended Plan Supplement, and together with the Original Plan Supplement, the First Amended Plan Supplement, the Second Amended Plan Supplement, and the Third Amended Plan Supplement, the Plan Supplement ). PLEASE TAKE FURTHER NOTICE THAT on April 5, 2018, the Court entered the Order (I) Confirming the Fourth Amended Joint Amended Chapter 11 Plan of Cobalt International and Its Debtor Affiliates and (II) Approving the Sale Transaction [Docket No. 784] (the Confirmation Order ). PLEASE TAKE FURTHER NOTICE THAT the documents contained in this Plan Supplement are integral to, part of, and incorporated by reference into the Plan. PLEASE TAKE FURTHER NOTICE THAT the Debtors may amend, revise, or supplement the Plan Supplement, and any of the documents and designations contained herein, at any time before the Effective Date of the Plan, or any such other date as may be provided for by the Plan or by order of the Court. If any Plan Supplement document is altered, amended, modified, or supplemented in any material respect, the Debtors will file a blackline of such document with the Court. PLEASE TAKE FURTHER NOTICE THAT the Fourth Amended Plan Supplement contains the following documents (each as defined in the Plan): Exhibit A: Amended Exhibit A of the Plan Supplement (Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases). Exhibit A(i): Blackline of revised Exhibit A of the Plan Supplement (Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases) identifying revisions made to Exhibit A after the filing of the Third Amended Plan Supplement on April 4, Exhibit D: Exhibit D of the Plan Supplement (Identity and Compensation of Plan Administrator). Exhibit D(i): Blackline of revised Exhibit D of the Plan Supplement (Identity and Compensation of Plan Administrator) identifying revisions made to Exhibit D after the filing of the Second Amended Plan Supplement on April 3, Exhibit E: Amended Exhibit E of the Plan Supplement (Disputed Claims Reserve Amount). Exhibit E(i): Blackline of revised Exhibit E of the Plan Supplement (Disputed Claims Reserve Amount) identifying revisions made to Exhibit E after the filing of 2

3 Case Document 803 Filed in TXSB on 04/09/18 Page 3 of 5 the First Amended Plan Supplement on March 29, Exhibit F: Amended Exhibit F of the Plan Supplement (Wind Down Budget). Exhibit F(i): Blackline of revised Exhibit F of the Plan Supplement (Wind Down Budget) identifying revisions made to Exhibit F after the filing of the First Amended Plan Supplement on March 29, PLEASE TAKE FURTHER NOTICE THAT if you would like to obtain a copy of the Disclosure Statement, the Plan, the Plan Supplement, or related documents, you should contact Kurtzman Carson Consultants, the notice and claims agent retained by the Debtors in the chapter 11 cases (the Notice and Claims Agent ), by: (a) calling the Notice and Claims Agent at (866) (toll free) or (310) (international), (b) visiting the Debtors restructuring website at: (c) writing to the Notice and Claims Agent at Cobalt Ballot Processing, c/o Kurtzman Carson Consultants, 2335 Alaska Avenue, El Segundo, California 90245, and/or (d) ing CobaltInfo@kccllc.com. You may also obtain copies of any pleadings filed in the chapter 11 cases for a fee via PACER at: THIS NOTICE IS BEING SENT TO YOU FOR INFORMATIONAL PURPOSES ONLY. IF YOU HAVE QUESTIONS WITH RESPECT TO YOUR RIGHTS UNDER THE PLAN OR ABOUT ANYTHING STATED HEREIN OR IF YOU WOULD LIKE TO OBTAIN ADDITIONAL INFORMATION, CONTACT THE NOTICE AND CLAIMS AGENT. 3

4 Case Document 803 Filed in TXSB on 04/09/18 Page 4 of 5 Houston, Texas Dated: April 9, 2018 /s/ Zack A. Clement Zack A. Clement (Texas Bar No ) ZACK A. CLEMENT P 3753 Drummond Street Houston, Texas Telephone: (832) and- James H.M. Sprayregen, P.C. (admitted pro hac vice) Marc Kieselstein, P.C. (admitted pro hac vice) Chad J. Husnick, P.C. (admitted pro hac vice) Brad Weiland (admitted pro hac vice) W. Benjamin Winger (admitted pro hac vice) Laura Krucks (admitted pro hac vice) KIRKLAND & ELLIS LLP KIRKLAND & ELLIS INTERNATIONAL LLP 300 North LaSalle Street Chicago, Illinois Telephone: (312) Facsimile: (312) Co-Counsel to the Debtors and Debtors in Possession

5 Case Document 803 Filed in TXSB on 04/09/18 Page 5 of 5 Certificate of Service I certify that on April 9, 2018, I caused a copy of the foregoing document to be served by the Electronic Case Filing System for the United States Bankruptcy Court for the Southern District of Texas. /s/ Zack A. Clement Zack A. Clement

6 Case Document Filed in TXSB on 04/09/18 Page 1 of 51 Exhibit A AMENDED SCHEDULE OF ASSUMED OR ASSUMED AND ASSIGNED EXECUTORY CONTRACTS AND UNEXPIRED LEASES

7 Case Document Filed in TXSB on 04/09/18 Page 2 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount ACE American Insurance Company Endorsement No. 7 Insurance Policy 12/31/2017 $0.00 Assignee (If Applicable) Cobalt GOM #1 Agip Petroleum Exploration Co. Inc AIG Excess Edge Insurance Policy 12/31/2016 $0.00 Excess Liability (Confirmation Of AIG Binding) Insurance Policy 11/1/2017 $0.00 Allianz Excess Liability Insurance Policy 12/31/2016 $ (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Declarations Amended Allianz Global Risks US Insurance Endorsement (Endorsement Company Number 6) Insurance Policy 12/31/2017 $0.00 Amazon Web Services Vendor Contract $0.00 Anadarko Petroleum Corporation Anadarko E&P Company LP Letter Agreement for Depth Imaging Project; (LAND GL-059-F) 9/2/2009 $0.00 Well Data Trade and Confidentiality Agreement; (LAND GL-052-B) 11/1/2010 $ Anadarko E&P Company, LP Anadarko E&P Company, LP Anadarko E&P Company, LP Anadarko E&P Company, LP Anadarko Petroleum Corporation Anadarko Petroleum Corporation Anadarko Petroleum Corporation (LAND GL-059-A) 4/1/2008 $0.00 Memo of JOA (LAND GL-059-A) 4/1/2008 $0.00 Memo of JOA-St. Mary Ph. (LAND GL-059-A) 4/1/2008 $0.00 Participation Agreement; (LAND GL-059-B) 5/7/2008 $0.00 Unit Agreement; (LAND GL-059-G) 4/1/2014 $0.00 WR 53 Offer Letter ; (LAND GL-059-H) 2/25/2014 $0.00 Agreement Regarding Designation of Successor Operator 3/8/2018 $ Cobalt GOM #1 Anadarko Petroleum Corporation Anadarko Petroleum Corporation Cobalt GOM #1 Anadarko Petroleum Corporation Anadarko Petroleum Corporation (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. (LAND GL-059-A) 4/1/2008 $0.00 Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 059-A) 4/1/2008 $ Anadarko Petroleum Corporation Letter Agreement re: Proposed Unitization & Leasehold Offering; (LAND GL-061-E) 4/26/2011 $0.00 W&T Offshore, Inc. Anadarko Petroleum Corporation Participation Agreement; Amendment (LAND GL- 059-B) 5/7/2008 $0.00 Anadarko Petroleum Corporation Producer Side Agreement 5/28/2013 $0.00 W&T Offshore, Inc. Unit Agreement; (LAND- Anadarko Petroleum Corporation GL-059-G) 4/1/2014 $0.00 Anadarko Petroleum Corporation Anadarko Petroleum Corporation Anadarko Petroleum Corporation Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Page 1 of 24

8 Case Document Filed in TXSB on 04/09/18 Page 3 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Anadarko Petroleum Corporation Anadarko US Offshore Corporation Assignee (If Applicable) Well Data Sharing Agreement; (LAND GL-061-C) 5/3/2011 $0.00 W&T Offshore, Inc. Unit Agreement; (LAND GL-059-G) 4/1/2014 $ Cobalt GOM #1 Anadarko US Offshore Corporation (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc Anadarko US Offshore Corporation Agreement Regarding Designation of Successor Operator 3/8/2018 $ Cobalt GOM #1 Anadarko US Offshore Corporation Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc Anadarko US Offshore Corporation Amendment (LAND GL- 059-A) 4/1/2008 $ Cobalt GOM #1 Anadarko US Offshore Corporation Purchase Agreement; (TREAS Heidelberg Oil Marketing) 1/1/2016 $0.00 W&T Offshore, Inc Anadarko US Offshore Corporation Unit Agreement; (LAND GL-059-G) 4/1/2014 $ Anadarko US Offshore Corporation Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc Anadarko US Offshore Corporation Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc Anadarko US Offshore Corporation Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc Cobalt GOM #1 Anardarko US Offshore Agency Agreement 1/1/2016 $0.00 W&T Offshore, Inc Cobalt GOM #1 Apache Deepwater Cobalt GOM #1 Apache Deepwater (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc Letter Agreement re: Proposed Apache Deepwater Unitization & Leasehold Offering; (LAND GL-061-E) 4/26/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Apache Deepwater (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- Apache Deepwater 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Well Data Sharing Agreement; Apache Deepwater (LAND GL-061-C) 5/3/2011 $0.00 W&T Offshore, Inc. Excess Third Party Liability Ascot Underwriting Inc. Insurance Policy 11/1/2017 $0.00 Excess Third Party Liability Ascot Underwriting Inc. Insurance Policy 11/1/2017 $0.00 AXIS Insurance Axis Settlement Escrow Account $0.00 Excess Endorsements Insurance Beazley Insurance Company, Inc Policy 12/31/2017 $0.00 Beazley Insurance Company, Inc. Excess D&O Insurance Policy 12/31/2016 $0.00 Berkshire Hathaway Specialty Insurance Excess Liability Insurance Policy 11/1/2017 $0.00 Berkshire Hathaway Specialty Insurance Company Excess D&O Insurance Policy 12/31/2016 $0.00 Berkshire Hathaway Specialty Period Extended Endorsement Insurance Company (Excess Form) Insurance Policy 12/31/2017 $0.00 Master Consulting Services Contract (MCSC); (OPS Blade Energy Partners, Ltd. CM ) 4/30/ Blade Energy Partners, Ltd. Statement of Work (SOW) / Work Order; (OPS NP Dev - Well Design (SELECT 2A)) 9/1/2017 Page 2 of 24

9 Case Document Filed in TXSB on 04/09/18 Page 4 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Statement of Work (SOW) / Work Order; (OPS NP Dev - Completions Design (SELECT Blade Energy Partners, Ltd. 2A)) 9/1/2017 Statement of Work (SOW) / Work Order; (OPS NP Dev - Completions Design (SELECT $86, Blade Energy Partners, Ltd. 2A)).docx 9/1/2017 Statement of Work (SOW) / Work Order; Contract (OPS NP Dev - Well Design (SELECT Blade Energy Partners, Ltd. 2A)) 9/1/2017 Statement of Work (SOW) / Work Order; Contract (OPS NP Dev - Well Design (SELECT Blade Energy Partners, Ltd. 2A)).docx 9/1/ Blade Energy Partners, Ltd. Statement of Work (SOW) / Work Order; Contract (OPS NP Dev - Completions Design (SELECT 2A)) 9/1/2017 Assignee (If Applicable) BHP Billiton Petroleum (Deepwater) Inc GT-007-E) 8/22/2013 $0.00 BHP Petroleum (GOM) Inc GL-054-D) 1/28/2015 $0.00 OTA between Caesar Oil Pipeline Caesar Oil Pipeline Company, Company and CIE LP 5/28/2013 $0.00 W&T Offshore, Inc. Trade & Confidentiality Agreement; (LAND GL Calypso Exploration, 125-B) 3/4/2016 $0.00 Cameron Highway Oil Pipeline Company CenturyLink CGG Veritas Services (U.S.) Inc. CGG Veritas Services (U.S.) Inc. CGG Veritas Services (U.S.) Inc. CGG Veritas Services (U.S.) Inc. CGG Veritas Services (U.S.) Inc. Champions Cinco Pipe & Supply Champions Cinco Pipe & Supply Champions Cinco Pipe & Supply Champions Cinco Pipe & Supply MOPSA between CIE LP and Cameron Highway Oil Pipeline Company 5/28/2013 $0.00 W&T Offshore, Inc. Contractor Agreement; (IT Internet and Voice Services for Office) 7/15/2015 $0.00 Amendment / Change Order / Supplement; (EXP Supplement No. VMS-003 (GC 939, 982, 983, 984 / WR 14-17)) 3/3/2010 $0.00 W&T Offshore, Inc. Amendment / Change Order / Supplement; (EXP Supplement No. VMS-007 (44 Blks Deux)) 3/1/2013 $0.00 Amendment / Change Order / Supplement; (EXP Supplement No. 13 (North Platte IBALT Survey)) 3/17/2016 $0.00 Contractor Agreement; (EXP NP Dev - Supplement No. 14 (North Platte D Seismic Processing)) 2/8/2017 Contractor Agreement; (EXP NP Dev - Supplement No. 14 (North Platte D Seismic Processing)) 2/8/2017 $338, Purchase Order; Amendment No 01 (OPS Inventory Purchase - NP5 14" and 14.15") 2/23/2017 $0.00 Purchase Order; Amendment No 02 (OPS Inventory Purchase - NP5 14" and 14.15") 2/23/2017 $0.00 Purchase Order; Executed PO (OPS Inventory Purchase - NP5 14" and 14.15") 2/23/2017 $0.00 Purchase Order; Requisition - Approved (OPS Inventory Purchase - NP5 14" and 14.15") 2/23/2017 $0.00 Page 3 of 24

10 Case Document Filed in TXSB on 04/09/18 Page 5 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) Chevron U.S.A. Inc. Chevron U.S.A. Inc. Anchor Prospect Operating Agreement, covering the Green Canyon Area, Outer Continental Shelf, Gulf of Mexico, effective November 26, 2013 between Chevron USA Inc. and Cobalt International Energy, LP 11/26/2013 $0.00 Anchor South Agreement; (LAND GL-024-M) 6/28/2017 $ Chevron U.S.A. Inc. Chevron U.S.A. Inc. Amendment to Green Canyon Block 807 United Agreement, effective February 1, 2018, by and between Chevron, Cobalt, and other working interest owners 2/1/2018 $0.00 Confidentiality / Non-Disclosure Agreement (NDA) 4/1/2016 $ Chevron U.S.A. Inc. Chevron U.S.A. Inc. Chevron U.S.A. Inc. Chevron U.S.A. Inc. Chevron U.S.A. Inc. Chevron U.S.A. Inc. Chevron U.S.A. Inc. Data Purchase & Sale Agreement; (LAND GL-024-P) 10/1/2017 $ GL-007-B) 11/19/2012 $ GL-051-B) 11/19/2012 $ GL-059-D) 7/25/2008 $ GL 024-H) 11/5/2015 $ GL-024-N) 6/15/2017 $0.00 Electonic Data Sharing Agreement; (LAND GL- 024-J) 6/30/2016 $ Chevron U.S.A. Inc. Unit Operating Agreement (JOA); (LAND GL-024-L) 1/25/2016 $ Chevron U.S.A. Inc. (LAND GL-051-E) 12/1/2016 $ Chevron U.S.A. Inc. Lease Exchange and Agreement; (LAND GL-024-B) 11/26/2013 $0.00 Like Kind Exchange; (LAND- Chevron U.S.A. Inc GL-051-D) 12/1/2016 $0.00 Model License Agreement; Chevron U.S.A. Inc. (LAND GT-007-C) 11/19/2012 $0.00 Participation Agreement; (LAND- Chevron U.S.A. Inc GL-024-O) 10/15/2017 $0.00 Unit Agreement; (LAND- Chevron U.S.A. Inc GL-024-D) 2/1/2014 $0.00 Unit Agreement; Amendment Chevron U.S.A. Inc. (LAND GL-024-D) 2/1/2014 $0.00 Unit Operating Agreement; Chevron U.S.A. Inc. (LAND GL-024-E) 2/1/2014 $0.00 Unit Operating Agreement; Amendment (LAND GL- Chevron U.S.A. Inc. 024-E) 2/1/2014 $0.00 Velocity Model License Agreement; (LAND GL- Chevron U.S.A. Inc. 024-G) 5/21/2015 $0.00 Chubb / Ace Excess D&O Insurance Policy 12/31/2016 $0.00 Escrow Agreements; (TREAS Citi Credit Card Cash Citigroup Global Markets Inc. Collateral Agreement) 6/18/2015 $0.00 Certificate of Occupancy; City of Houston (LEGAL ) 10/31/2012 $0.00 Assignment & Conveyance; Cobalt GOM #1 (LAND GL-061-F) 1/1/2015 $0.00 W&T Offshore, Inc. CommVault Vendor Contract $0.00 Page 4 of 24

11 Case Document Filed in TXSB on 04/09/18 Page 6 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) Cobalt GOM #1 Conoco Drilling Inc Cobalt GOM #1 Conoco Inc ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Unit Agreement; (LAND GL-059-G) 4/1/2014 $0.00 WR 53 Offer Letter ; (LAND GL-059-H) 2/25/2014 $0.00 Agreement Regarding Designation of Successor Operator 3/8/2018 $ GL-024-N) 6/15/2017 $ ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company ConocoPhillips Company D&O Group Data Foundry, Inc. Data Foundry, Inc. Data Foundry, Inc. Discovery Gas Transmission Discovery Gas Transmission (LAND GL-059-A) 4/1/2008 $0.00 Amendment (LAND GL- 059-A) 4/1/2008 $0.00 Memo of JOA (LAND GL-059-A) 4/1/2008 $0.00 Memo of JOA-St. Mary Ph. (LAND GL-059-A) 4/1/2008 $0.00 Letter Agreement for Depth Imaging Project; (LAND GL-059-F) 9/2/2009 $0.00 Participation Agreement; (LAND GL-059-B) 5/7/2008 $0.00 Participation Agreement; Amendment (LAND GL- 059-B) 5/7/2008 $0.00 Unit Agreement; (LAND GL-059-G) 4/1/2014 $0.00 Excess Indemnity Insurance Policy 12/31/2016 $0.00 (MSA); (IT MSA - Data Foundry) 1/12/2016 $0.00 (MSA); Amendment No 01 (IT MSA - Data Foundry) 1/12/2016 $0.00 (MSA); Amendment No 02 (IT MSA - Data Foundry) 1/12/2016 $0.00 Contractor Agreement; (TREAS ) 2/27/2013 $0.00 W&T Offshore, Inc. Contractor Agreement; (TREAS ) 1/4/2013 $0.00 W&T Offshore, Inc Discovery Gas Transmission Discovery Gas Transmission Discovery Gas Transmission Discovery Producer Services Discovery Producer Services Discovery Producer Services Discovery Producer Services Discovery Producer Services Discovery Producer Services Discovery Pipeline FT-2 Discount Agreement Letter Agreement 1/4/2013 $0.00 W&T Offshore, Inc. Liquids Transportation Agreement (Heidelberg Field) $0.00 W&T Offshore, Inc. Service Agreement Applicable To Firm Trasnportation Service Under Ft-2 Rate Schedule $0.00 W&T Offshore, Inc. Contractor Agreement; (TREAS ) 1/4/2013 $0.00 W&T Offshore, Inc. Contractor Agreement; (TREAS ) 1/4/2013 $0.00 W&T Offshore, Inc. Contractor Agreement; (TREAS ) 1/4/2013 $0.00 W&T Offshore, Inc. Gas Dedication and Gathering Agreement (Heidelberg Field) 1/4/2013 $0.00 W&T Offshore, Inc. Gas Processing and Fractionation Agreement $0.00 W&T Offshore, Inc. Liquids Separation, Handling, Stabilization and Redelivery Agreement (Heidelberg Field) $0.00 W&T Offshore, Inc. Page 5 of 24

12 Case Document Filed in TXSB on 04/09/18 Page 7 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Dril-Quip, Inc. Service Order / Short Form Service Agreement; Approved PO (OPS Customer Property Storage) 2/8/2017 Service Order / Short Form $4, Service Agreement; Requisition (OPS Customer Property Storage) 2/8/ GL-054-E) 5/1/2015 $0.00 Assignee (If Applicable) Dril-Quip, Inc Ecopetrol America Inc Ecopetrol America Inc GL 024-H) 11/5/2015 $ Cobalt OTA AMD # Cobalt GOM #1 Enbridge Offshore Facilities, executed 1/15/2016 $0.00 W&T Offshore, Inc Cobalt OTA AMD #2 Heidelberg (Executable) Cobalt GOM #1 Enbridge Offshore Facilities, 2015 partial 1/15/2016 $0.00 W&T Offshore, Inc. Enbridge Guarantee in Favor of Enbridge Inc. CIE LP 5/28/2013 $0.00 W&T Offshore, Inc. HB OTA and OA between CIE LP Enbridge Offshore Facilities, and Enbridge 5/28/2013 $0.00 W&T Offshore, Inc Cobalt GOM #1 Enbridge Offshore Facilities, Agency Agreement 1/1/2016 $0.00 W&T Offshore, Inc and Cobalt GOM #1 Enbridge Offshore Facilities, Assignment, Assumption, Consent Agreement 1/1/2015 $0.00 W&T Offshore, Inc Enbridge Offshore Facilities, Memorandum of Agreement 5/28/2013 $0.00 W&T Offshore, Inc Cobalt GOM #1 Enbridge Offshore Facilities, Memorandum of Agreement 1/1/2015 $0.00 W&T Offshore, Inc. Endurance Period Extension Insurance Policy 12/31/2017 $0.00 Endurance American Insurance Directors And Officers Difference In Conditions Liability Insurance Company Policy 12/31/2016 $ Cobalt GOM #1 Eni Petroleum (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc Eni Petroleum Letter Agreement re: Proposed Unitization & Leasehold Offering; (LAND GL-061-E) 4/26/2011 $0.00 W&T Offshore, Inc Cobalt GOM #1 Eni Petroleum Company Inc Eni Petroleum US Cobalt GOM #1 Eni Petroleum US Cobalt GOM #1 Eni Petroleum US Eni Petroleum US Eni Petroleum US Eni Petroleum US Eni Petroleum US Epiq ediscovery Solutions, Inc. Exact Software North America, Exact Software North America, (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc GL-054-C) 1/21/2015 $0.00 (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Well Data Sharing Agreement; (LAND GL-061-C) 5/3/2011 $0.00 W&T Offshore, Inc. Services Agreement; (LEGAL ) 1/15/2013 $0.00 (MSA); (IT ) 1/22/2014 $0.00 (MSA); License,Hosting and Maintenance Agreement (IT ) 1/22/2014 $0.00 Page 6 of 24

13 Case Document Filed in TXSB on 04/09/18 Page 8 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) Exxon Mobil Corporation Letter Agreement re: Proposed Unitization & Leasehold Offering; (LAND GL-061-E) 4/26/2011 $0.00 W&T Offshore, Inc Cobalt GOM #1 Exxon Mobile Corporation Cobalt GOM #1 Exxon Mobile Corporation Exxon Mobile Corporation Exxon Mobile Corporation Exxon Mobile Corporation Exxon Mobile Corporation Cobalt GOM #1 ExxonMobil Corporation Cobalt GOM #1 ExxonMobil Corporation ExxonMobil Corporation (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Well Data Sharing Agreement; (LAND GL-061-C) 5/3/2011 $0.00 W&T Offshore, Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Participation Agreement; (LAND GL-061-B) 5/2/2008 $0.00 W&T Offshore, Inc Cobalt GOM #1 ExxonMobil Exploration Company (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc Fortinet Vendor Contract $0.00 Freedom Specialty Insurance Company / Nationwide Excess D&O Insurance Policy 12/31/2016 $0.00 Freedom Specialty Insurance Company / Nationwide D&O XSide A Insurance Policy 12/31/2016 $ GeoComputing Group, Master Consulting Agreement; (OPS MCA GeoCommputing Group ) 7/1/ GeoComputing Group, GeoComputing Group, GeoComputing Group, Master Consulting Agreement; Native Contract (OPS MCA GeoCommputing Group ) 7/1/2015 Statement of Work (SOW) / Work Order; (OPS E&P Computing Environment - Application & Systems, Operational Support) 6/3/2016 Statement of Work (SOW) / Work Order; Amendment (OPS E&P Computing Environment - Application & Systems, Operational Support) 6/3/2016 Statement of Work (SOW) / Work Order; Support Schedule (OPS E&P Computing GeoComputing Group, Environment - Application & Systems, Operational Support) 6/3/2016 Global Relay Vendor Contract $9, Period Extension Endorsement HCC Insurance Policy 12/31/2017 $0.00 Hess Corporation Hess Corporation Hess Corporation $62, GL-059-C) 7/25/2008 $ GT-007-E) 8/22/2013 $ GL-024-N) 6/15/2017 $0.00 Page 7 of 24

14 Case Document Filed in TXSB on 04/09/18 Page 9 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) Hess Corporation Well Samples Study; (LAND GT-007-I) 4/15/2015 $ HSE Amendment (LAND GL- 131-A) 7/1/2014 $ HSE Exhibits (LAND GL- 131-A) 7/1/2014 $0.00 Purchase and Sale Agreement; Hunt Oil Company (LAND GL-054-A) 6/8/2012 $0.00 Illinois National Insurance Endorsements Nos. 7, 8, And 9 Company Insurance Policy 12/31/2017 $0.00 Illinois National Insurance Company D&O XSide A Insurance Policy 12/31/2016 $0.00 Statement of Work (SOW) / Work Order; (OPS A PI Hoteling and Well Share Industrial Evolution, Inc. Services) 12/8/2015 $0.00 W&T Offshore, Inc Industrial Evolution, Inc. Statement of Work (SOW) / Work Order; Invoicing Instructions (OPS A PI Hoteling and Well Share Services) 12/8/2015 $0.00 W&T Offshore, Inc Industrial Evolution, Inc. International SOS Assistance, Inc. Statement of Work (SOW) / Work Order; Proposal (OPS A PI Hoteling and Well Share Services) 12/8/2015 $0.00 W&T Offshore, Inc. (MSA); (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $ International SOS Assistance, Inc. (MSA); Addendum (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $0.00 Page 8 of 24

15 Case Document Filed in TXSB on 04/09/18 Page 10 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. International SOS Assistance, Inc. (MSA); Certificate of Subscription, (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $0.00 (MSA); COS, (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, (Corrected) (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, 2016 Aug-Dec (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, 2016 May-Aug (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, 2017 Jan-Jun (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); COS, 2017 Jul-Dec (OPS CIE LP, Medical Evacuations - Angolans) 10/3/2014 $0.00 (MSA); Detailed Declaration Information (OPS CIE LP, Medical Evacuations - Expats worldwide) 5/2/2008 $ IronShore Specialty Insurance Company Excess Protect Plus Commercial Excess Liability Insurance Policy 11/1/2017 $0.00 Excess Liability (Binder) JH Blades Insurance Policy 11/1/2017 $0.00 LastPass Vendor Contract $0.00 Extension Endorsement 13 & 14 Liberty Insurance Policy 12/31/2017 $0.00 Management Liability And Liberty Insurance Underwriters Professional Liability Follow Inc. Form Excess Insurance Policy 12/31/2016 $0.00 Agreement Regarding Designation of Successor LLOG Exploration Offshore, Operator 3/8/2018 $0.00 LongView Vendor Contract $0.00 Longview of America (MSA); (IT ) 1/22/2014 $0.00 (MSA); License,Hosting and Maintenance Agreement (IT- Longview of America ) 1/22/2014 $0.00 Longview Solutions Inc. (MSA); (IT ) 1/22/2014 $0.00 (MSA); License,Hosting and Maintenance Agreement (IT- Longview Solutions Inc ) 1/22/2014 $0.00 Malwarebytes Vendor Contract $0.00 Unit Agreement; (LAND- Marathon Oil Company GL-059-G) 4/1/2014 $0.00 WR 53 Offer Letter ; (LAND- Marathon Oil Company GL-059-H) 2/25/2014 $0.00 Page 9 of 24

16 Case Document Filed in TXSB on 04/09/18 Page 11 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Marathon Oil Company GL-054-E) 5/1/2015 $0.00 Assignee (If Applicable) Marathon Oil Company Marathon Oil Company Marathon Oil Company Marathon Oil Company Marathon Oil Company Marathon Oil Company Marathon Oil Company Marathon Oil Company (LAND GL-059-A) 4/1/2008 $0.00 Amendment (LAND GL- 059-A) 4/1/2008 $0.00 Memo of JOA (LAND GL-059-A) 4/1/2008 $0.00 Memo of JOA-St. Mary Ph. (LAND GL-059-A) 4/1/2008 $0.00 Letter Agreement for Depth Imaging Project; (LAND GL-059-F) 9/2/2009 $0.00 Participation Agreement; (LAND GL-059-B) 5/7/2008 $0.00 Participation Agreement; Amendment (LAND GL- 059-B) 5/7/2008 $0.00 Unit Agreement; (LAND GL-059-G) 4/1/2014 $ Cobalt GOM #1 Mariner Mariner (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc Cobalt GOM #1 Marubeni Oil & Gas (USA) Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc Cobalt GOM #1 Marubeni Oil & Gas (USA) Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc Marubeni Oil & Gas (USA) Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc Marubeni Oil & Gas (USA) Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc Microsoft Corporation Contractor Agreement; (IT Microsoft User License Renewal V1) 3/28/2016 $ Microsoft Corporation Contractor Agreement; (IT Microsoft User License Renewal V2) 3/28/2016 $0.00 Murphy Exploration & Production Company USA GL-054-E) 5/1/2015 $0.00 Well Data Trade and Murphy Exploration & Production Confidentiality Agreement; Company-USA (LAND GL-052-B) 11/1/2010 $0.00 Nationwide Excess Extension Of Period Insurance Policy 12/31/2017 $0.00 Nationwide Excess Extension Of Period Insurance Policy 12/31/2017 $0.00 Navigators Insurance Company Excess D&O Insurance Policy 12/31/2016 $0.00 Navigators Pro Endorsement No.: 6- Period Amended Insurance Policy 11/7/2017 $ NetApp Vendor Contract $ Nexen Petroleum Offshore U.S.A. Inc GL-054-C) 1/21/2015 $ Nexen Petroleum Offshore U.S.A. Inc GL 024-H) 11/5/2015 $ Nexen Petroleum Offshore U.S.A. Inc. Joint Bidding Agreement; (LAND B) 2/19/2008 $ Nexen Petroleum Offshore U.S.A. Inc. Joint Bidding Agreement; (LAND B) 3/10/2010 $0.00 Nexen Petroleum Offshore U.S.A. Joint Bidding Agreement; Inc. Exhibits (LAND B) 2/19/2008 $0.00 Page 10 of 24

17 Case Document Filed in TXSB on 04/09/18 Page 12 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Assignee (If Applicable) Nexen Petroleum USA, Inc. Data Purchase & Confidentiality Agreement; (LAND GT- 007-G) 10/25/2013 $ Nexen Petroleum USA, Inc. Reprocessed Seismic Data License; (LAND GT- 007-F) 8/1/2013 $ Nexen Petroleum USA, Inc. North American Specialty Insurance North American Specialty Insurance Company Oil & Gas Consulting Partners Oil & Gas Consulting Partners Omega Project Solutions, Inc. Reprocessed Seismic Data License; (LAND GT- 005-B) 8/1/2013 $0.00 Excess Directors And Officers Liability Declarations Insurance Policy 12/31/2016 $0.00 Period Extension Endorsement 8 Insurance Policy 12/31/2017 $0.00 Release of Inventions; (OPS Release of Inventions to Ken Ruddy) 11/7/2013 $0.00 Release of Inventions; Notification (OPS Release of Inventions to Ken Ruddy) 11/7/2013 $0.00 Master Consulting Agreement; (OPS Master Consulting Agreement) 10/18/2016 $0.00 Master Consulting Agreement; Omega Project Solutions, Inc. Contract (OPS Master Consulting Agreement) 10/18/2016 $0.00 P2 Energy Solutions Vendor Contract $3, Patterson Tubular Services Poseidon Oil Pipeline Company, L.L.C. Poseidon Oil Pipeline Company, L.L.C. PricewaterhouseCoopers LLP Prosight Specialty Insurance Blanket Purchase Order / Limit Order; Yard Rates (OPS PTS Storage / Service) 9/14/2015 $0.00 MOA regarding MOPSA between CIE LP and Poseidon Oil Pipeline Company 5/28/2013 $0.00 W&T Offshore, Inc. MOPSA between CIE LP and Poseidon Oil Pipeline Company 5/28/2013 $0.00 W&T Offshore, Inc. Engagement Letter; (AF ) 10/15/2012 $10, Umbrella/Bumbershoot Insurance Policy 11/1/2017 $ Cobalt GOM #1 PXP Offshore PXP Offshore PXP Offshore QBE QBE Insurance Corporation Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. Quorum Business Solutions, Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Declarations Amendment Period Insurance Policy 11/11/2017 $0.00 Primary Director & Officer Insurance Policy 12/31/2016 $0.00 Master Consulting Services Contract (MCSC); SOW (IT ) 11/2/2015 (MSA); (IT ) 9/10/2013 Master Software License Agreement; Attachment #5 (IT ) 2/20/2013 Master Software License Agreement; Attachment #5 (IT Copy) 2/20/2013 Master Software License Agreement; Attachment #6 (IT ) 2/20/2013 Master Software License Agreement; Attachment #6 (IT Copy) 2/20/2013 Master Software License Agreement; Attachment #7 (IT ) 2/20/2013 Page 11 of 24

18 Case Document Filed in TXSB on 04/09/18 Page 13 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Quorum Business Solutions, Inc. Master Software License Agreement; Attachment #7 (IT Copy) 2/20/2013 Master Software License Agreement; Exhibit A (IT- Quorum Business Solutions, Inc ) 2/20/2013 Master Software License Agreement; Exhibit A (IT- Quorum Business Solutions, Inc Copy) 2/20/2013 $56, Assignee (If Applicable) Quorum Business Solutions, Inc. Master Software License Agreement; MCSA (IT ) 2/20/2013 Master Software License Agreement; MCSA (IT Quorum Business Solutions, Inc. Copy) 2/20/2013 Master Software License Agreement; SOW #3 (IT- Quorum Business Solutions, Inc ) 2/20/2013 Master Software License Agreement; SOW #3 (IT Quorum Business Solutions, Inc. -Copy) 2/20/2013 Master Software License Agreement; Statement of Work - Quorum Business Solutions, Inc. #2 (IT ) 2/20/2013 Master Software License Agreement; Statement of Work - Quorum Business Solutions, Inc. #2 (IT Copy) 2/20/2013 Changes Endorsement 1 Insurance RSUI Policy 12/31/2017 $0.00 RSUI Indemnity Company Excess D&O Insurance Policy 12/31/2016 $0.00 Salesforce.com, Inc. Subscription Agreement 10/10/2013 $0.00 Anchor South Agreement; (LAND- Samson Offshore Anchor, GL-024-M) 6/28/2017 $ Samson Offshore Anchor, Samson Offshore Anchor, Samson Offshore Anchor, Samson Offshore Anchor, Samson Offshore Anchor, Samson Offshore Anchor, Samson Offshore Company Schlumberger Technology Corp. Schlumberger Technology Corp. Selectica, Inc. Shell Offshore Inc. Shell Offshore Inc. Shell Offshore Inc. Shell Offshore Inc. Amendment to Green Canyon Block 807 United Agreement, effective February 1, 2018, by and between Chevron, Cobalt, and other working interest owners 2/1/2018 $ GL 024-H) 11/5/2015 $ GL-024-N) 6/15/2017 $0.00 Participation Agreement; (LAND GL-024-O) 10/15/2017 $0.00 Unit Agreement; Amendment (LAND GL-024-D) 2/1/2014 $0.00 Unit Operating Agreement; Amendment (LAND GL- 024-E) 2/1/2014 $0.00 Well Data Trade and Confidentiality Agreement; (LAND GL-052-B) 11/1/2010 $0.00 Statement of Work (SOW) / Work Order; (OPS NP Dev - NP#4 PVT (16-212A)) 1/30/2017 $425, Statement of Work (SOW) / Work Order; Contract (OPS NP Dev - NP#4 PVT (16-212A)) 1/30/2017 Services Agreement; (LEGAL ) 11/11/2011 $ GL-059-E) 7/16/2008 $ GL-060-B) 7/1/2010 $ GL-054-C) 1/21/2015 $ GL 024-H) 11/5/2015 $ Shell Offshore Inc. (LAND GL-054-B) 7/1/2010 $0.00 Page 12 of 24

19 Case Document Filed in TXSB on 04/09/18 Page 14 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Tracking # Debtor Counterparty Contract Description Date Cure Amount Shell Offshore Inc. Shell Offshore Inc. SHI International Sociedade Nacional de Combusteveis de Angola-Empresa Publica (Sonangol) Amendment (LAND GL- 054-B) 7/1/2010 $0.00 Like Kind Exchange; (LAND ) 7/1/2010 $0.00 Purchase Order; Contract (IT Server Cloud Enrollment for Azure) 4/14/2016 $0.00 Participation Agreement; (LAND H) 5/15/2008 $0.00 Assignee (If Applicable) Societe General, London Branch Societe General, London Branch Sonangol Exploration & Production International, Ltd. Sonangol Exploration & Production International, Ltd. Amendment; Amendment (TREAS Soc Gen Service Agreemend Amendment) 8/26/2015 $0.00 (MSA); (TREAS Soc Gen Service Agreement) 7/30/2015 $0.00 Amendment (LAND GL- 052-A) 4/6/2009 $0.00 Amendment (LAND GL- 046-A) 4/6/2009 $ Sonangol Exploration & Production International, Ltd. Sonangol Exploration & Production International, Ltd. Sonangol Exploration & Production International, Ltd. Starr Surplus Lines Insurance Company StarStone Specialty Insurance Company StarStone Specialty Insurance Company Participation Agreement - Blocks 9, 20 & 21; (LEGAL ) 9/26/2007 $0.00 Participation Agreement - Blocks 9, 20 & 21; Participation Agreement - Addendum (LEGAL ) 9/26/2007 $0.00 Well Data Trade and Confidentiality Agreement; (LAND GL-052-B) 11/1/2010 $0.00 Excess Liability Form Sl -100 (10/08) Insurance Policy 11/1/2017 $0.00 Excess Energy Liability Insurance Policy 11/1/2017 $0.00 Excess Energy Liability Quote Insurance Policy 11/1/2017 $ Cobalt GOM #1 Statoil Gulf of Mexico Statoil Gulf Properties Inc Statoil USA E&P Inc Cobalt GOM #1 Statoil USA E&P Inc Cobalt GOM #1 Statoil USA E&P Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc GL-054-D) 1/28/2015 $ GT-007-H) 12/15/2013 $0.00 (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Amendment (LAND GL- 061-A) 10/15/1998 $0.00 W&T Offshore, Inc Statoil USA E&P Inc. Statoil USA E&P Inc. Statoil USA E&P Inc. Statoil USA E&P Inc. Statoil USA E&P Inc. Letter Agreement re: Proposed Unitization & Leasehold Offering; (LAND GL-061-E) 4/26/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; (LAND GL-061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Amendment (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Unit Agreement-Heidelberg- Green Canyon Block 859 Unit; Exhibits (LAND GL- 061-D) 5/1/2011 $0.00 W&T Offshore, Inc. Well Data Sharing Agreement; (LAND GL-061-C) 5/3/2011 $0.00 W&T Offshore, Inc Cobalt GOM #1 StatoilHydro USA E&P, Inc. (LAND GL-061-A) 10/15/1998 $0.00 W&T Offshore, Inc. Page 13 of 24

20 Case Document Filed in TXSB on 04/09/18 Page 15 of 51 Exhibit A Schedule of Assumed or Assumed and Assigned Executory Contracts and Unexpired Leases Assignee (If Applicable) (MSA); (OPS CM ) 7/1/2010 $0.00 W&T Offshore, Inc. Tracking # Debtor Counterparty Contract Description Date Cure Amount Superior Energy Services, L.L.C. Superior Natural Gas Corporation and Superior Processing Services Cross-Company Master Netting Cobalt GOM #1 Corporation and Set-Off Agreement 2/1/2016 $0.00 W&T Offshore, Inc. Election and Billing Agent Designation Discovery Gas Transmission Discovery Cobalt GOM #1 Superior Natural Gas Corporation Pipeline System 1/1/2016 $0.00 W&T Offshore, Inc. Election and Billing Agent Designation Discovery Producer Cobalt GOM #1 Superior Natural Gas Corporation Services 1/1/2016 $0.00 W&T Offshore, Inc. Gas Marketing Services Cobalt GOM #1 Superior Natural Gas Corporation Agreement 2/1/2016 $0.00 W&T Offshore, Inc. Superior Processing Services Natural Gas Processing Services Cobalt GOM #1 Corporation Agreement 2/1/2016 $0.00 W&T Offshore, Inc. Purchase Order; Executed PO (OPS Inventory Tenaris Global Services Purchase - NP5 18" 16.1" (USA)Corporation ") 2/16/ Tenaris Global Services (USA)Corporation Tenaris Global Services S.A. Purchase Order; Executed PO (OPS Inventory Purchase - NP5 18" 16.1" ") Amendment 00 2/16/2017 $5, Purchase Order; Requisition - Approved (OPS Inventory Purchase - NP5 18" 16.1" ") Amendment 01 2/16/2017 $ Tenaris Global Services S.A. Service Order / Short Form Service Agreement; Amendment (OPS Fabricate Pups; 18", 16.1", ") 5/25/2017 $ Service Order / Short Form Service Agreement; Amendment Tenaris Global Services S.A. (OPS Fabricate Pups; 18", 16.1", ") Executed 5/25/2017 $0.00 Service Order / Short Form Service Agreement; Approved Requisition (OPS Fabricate Pups; 18", 16.1", Tenaris Global Services S.A ") 5/25/2017 $0.00 Spectrum Declarations Insurance The Hartford Policy 11/1/2017 $0.00 The State of Texas, Office of the (MSA); Corporate Registration Secretary of State (OPS MSA) 12/15/2017 $0.00 Tokio Marine Specialty Ins/HCC Excess D&O Insurance Policy 12/31/2016 $0.00 Data Purchase & Confidentiality Agreement; (LAND GT- 007-G) 10/25/2013 $ GL-007-B) 11/19/2012 $ GT-007-E) 8/22/2013 $ GL-054-C) 1/21/2015 $ GL-054-D) 1/28/2015 $ GL-054-E) 5/1/2015 $0.00 Joint Bidding Agreement; (LAND B) 3/10/2010 $ Joint Operating Agreement (JOA) (LAND GL-093-A) 4/6/2009 $ Joint Operating Agreement (JOA) (LAND GL-093-A) 4/6/2009 $0.00 Page 14 of 24