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Full title: Final Application for Compensation for Stewart Robbins Brown & Altazan, LLC, Creditor Comm. Aty, Period: 3/12/2021 to 6/30/2021, Fee: $430,431.00, Expenses: $8,145.50. Objections/Request for Hearing Due in 21 days. Filed by Attorney Stewart Robbins Brown & Altazan, LLC (Stewart, Paul) (Entered: 08/27/2021)

Document posted on Aug 26, 2021 in the bankruptcy, 87 pages and 0 tables.

Bankrupt11 Summary (Automatically Generated)

Conference call with counsel and FA re: B320 BAB 1.40 445.00 6proposed settlement terms, issues with same, strategy for approaching plan settlement (0.8), research re: post-DS approval creditor communications (0.6) 021 call with Committee professionals re B150 PDS 1.50 455.00 6settlement proposal (.9); follow-up communications with M. Bishop, M. Okin and D. Curry, M. Schmidt, and T. Thompson re settlement discussions (.6).2021 Telephone conference with committee FA re: B150 BAB 0.60 445.00 2D&O claims, other issues 2021 Emails with debtor's counsel and telephone B320 BAB 0.80 445.00 3conference with same re: plan supplement documents, other plan issues, analyze issues raised on call.BAB 1.10 445.00 4Thompson, D. Curry re: Seaport indemnity issues, circulate prior orders on FA's 2021 Review and analyze debtor's proposed plan B320 BAB 1.60 445.00 7term sheet and global effect on plan 2021 Review and analyze multiple plan B320 BAB 1.70 445.00 7confirmation objections 2021 Begin drafting motion to file Challenge B120 BAB 1.90 445.00 8Complaint under seal 2021 Review and analyze draft of challenge B120 BAB 2.80 445.00 1,2complaint, review and revise standing motion for challenge complaint 2021 Continued review of newly produced B120 PDS 6.60 455.00 3,0documents and drafting of chronology.2021 attending Committee meeting call B150 WSR 0.90 445.00 42021 Prepare for and participate in conference with B150 BAB 1.40 445.00 6committee members re: plan status, settlement status, other issues (1.1); review surety objection, emails with committee and FA re: same (0.3) 2021 Review and analyze TPIC plan settlement B320 BAB 0.60 445.00 2term sheet, basis for same 2021 Analyze and redline plan with regard to 2017 B320 BAB 0.90 445.00 4creditor reserve funds, emails with Debtors' counsel re: same 2021 Review revised Seaport order, multiple B160 BAB 0.60 445.00 2emails with D. Curry re: same, finalize and submit same 2021 Conference with counsel for CEI re: 2021 communication with Talos counsel and B320 WSR 0.40 445.00 1analysis regarding post confirmation documents, effective date and revisions 2021 Multiple emails with various counsel re: B320 BAB 0.80 445.00 3closing issues for ED, review and analyze latest closing checklist circulated by debtor 2021 Attention to transition issues relating to qual B210 PDS 2.80 455.00 1,2Cards, signature cards, and other closing issues for effective date (1.6); all-hands call to discuss transition and closing (.8); related communications with team and T. Thompson re closing issues (.4).

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UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION In re: § § Case No. 21-30710 CASTEX ENERGY 2005 HOLDCO, § LLC, et al., § Chapter 11 § Debtors. § (Jointly Administered) FIRST AND FINAL FEE APPLICATION OF STEWART ROBBINS BROWN & ALTAZAN LLC FOR ALLOWANCE OF COMPENSATION FOR SERVICES RENDERED AND REIMBURSEMENT OF EXPENSES AS COUNSEL TO THE OFFICIAL COMMITTEE Complex Case Fee Application Coversheet Name of Applicant: Stewart Robbins Brown & Altazan LLC Applicant’s Role in Case: Counsel to Official Committee of Unsecured Creditors Docket No. of Employment Order: 05/04/21 [Dkt. No. 228] Interim Application ( ) No. ____________ 1st and Final Final Application ( X )
Table 1 on page 1. Back to List of Tables
None None
Time period covered by this Application: March 12, 2021 June 30, 2021
Time period(s) covered by prior Applications: n/a n/a
Total Amount Awarded in all prior Applications: None $0.00
Total fees requested in this Application: None $430,431.00
Total professional fees requested in this Application: None $423,636.00
Total actual professional hours covered by this Application: None 1,015.80
Average hourly rate for professionals: None $417.05
Total paraprofessional fees requested in this Application: None $6,795.00
Total paraprofessional hours covered by this Application: None 45.30

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Average hourly rate for paraprofessionals: $150.00 Total expense reimbursements requested in this Application: $8,145.50 Unknown
Table 1 on page 2. Back to List of Tables
Anticipated % Dividend to Priority Unsecured Creditors: 100%
Total to be paid to General Unsecured Creditors: Unknown
Anticipated % Dividend to General Unsecured Creditors: 10 – 30 %
Date of Confirmation Hearing: June 7, 2021
Indicate whether plan has been confirmed: Yes, Docket No. 324

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UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION In re: § § Case No. 21-30710 CASTEX ENERGY 2005 HOLDCO, § LLC, et al., § Chapter 11 § Debtors. § (Jointly Administered) FIRST AND FINAL FEE APPLICATION OF STEWART ROBBINS BROWN & ALTAZAN LLC FOR ALLOWANCE OF COMPENSATION FOR SERVICES RENDERED AND REIMBURSEMENT OF EXPENSES AS COUNSEL TO THE OFFICIAL COMMITTEE IF YOU OBJECT TO THE RELIEF REQUESTED, YOU MUST RESPOND IN WRITING. UNLESS OTHERWISE DIRECTED BY THE COURT, YOU MUST FILE YOUR RESPONSE ELECTRONICALLY AT HTTPS://ECF.TXSB.USCOURTS.GOV/ BY SEPTEMBER 20, 2021. IF YOU DO NOT HAVE ELECTRONIC FILING PRIVILIGES, YOU MUST FILE A WRITTEN OBJECTION THAT IS ACTUALLY RECEIVED BY THE CLERK BY SEPTEMBER 20, 2021. OTHERWISE, THE COURT MAY TREAT THE PLEADING AS UNOPPOSED AND GRANT THE RELIEF REQUESTED. Stewart Robbins Brown & Altazan LLC (“SRBA”), counsel to the Official Committee of Unsecured Creditors (the “Committee”), submits this First and Final Fee Application (the “Application”) for allowance and payment of compensation for services rendered and reimbursement of expenses from March 12, 2021 through, and including June 30, 2021 (the “Final Application Period”) pursuant to sections 330 and 331 of title 11 of the United States Code (the “Bankruptcy Code”), Rule 2016 of the Federal Rules of Bankruptcy Procedure (the “Bankruptcy Rules”), Rule 2016-1 of the Local Rules of the United States Bankruptcy Court for the Southern

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District of Texas (the “Local Rules”), Section V of the Procedures for Complex Cases in the Southern District of Texas (the “Complex Case Rules”), Section 8 of the Honorable Marvin Isgur’s Court Procedures (“Judge Isgur’s Procedures”), and the Guidelines for Reviewing Applications for Compensation and Reimbursement of Expenses Filed Under 11 U.S.C. § 330 by Attorneys in Larger Chapter 11 Cases Effective as of November 1, 2013 (the “Guidelines”). RELIEF REQUESTED 1. SRBA respectfully submits this Application for (i) compensation of fees for reasonable, actual, and necessary services rendered by SRBA on behalf of the Committee during the Final Application Period in the amount of $430,431.00; and (ii) reimbursement of reasonable, actual, and necessary expenses incurred by SRBA on behalf of the Committee during the Final Application Period in the amount of $8,145.50. JURISDICTION AND VENUE 2. This Court has jurisdiction to consider this Motion pursuant to 28 U.S.C. §§ 157 and 1334. This matter is a core proceeding pursuant to 28 U.S.C. § 157(b). 3. Venue is proper pursuant to 28 U.S.C. §§ 1408 and 1409. BACKGROUND 4. On February 26, 2021 (the “Petition Date”), Castex Energy 2005 Holdco, LLC (“CEH”); Castex Energy 2005, LLC (“CE”); Castex Energy Partners, LLC (“CEP”); and Castex Offshore, Inc. (“CO”) (collectively, CEH, CE, CEP, and CO are referred to herein as the “Debtors”) filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the United States Bankruptcy Court for the Southern District of Texas (the “Court”).1 CEH was assigned Case Number 21-30710; CE was assigned Case Number 21-30711; CEP was assigned 1 Case Number 21-30710, Doc. No. 1; Case Number 21-30711, Doc. No. 1; Case Number 21-30712, Doc. No. 1; and Case Number 21-30713, Doc. No. 1.

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Case Number 21-30712; and CO was assigned Case Number 21-30713.2 Since the Petition Date, the Debtors have operated their businesses and managed their property as debtors-in-possession pursuant to sections 1107(a) and 1108 of the Bankruptcy Code. 5. On March 1, 2021, the Court ordered the four bankruptcy cases to be jointly administered under Case Number 21-30710 (the “Bankruptcy Case”).3 The Court previously designated the Bankruptcy Case a complex chapter 11 case.4 6. On June 3, 2021, the Debtors filed their Fourth Amended Joint Chapter 11 Plan (the “Plan”) [Dkt. No. 307]. 7. On June 7, 2021, the Court entered its Order Confirming Fourth Amended Joint Chapter 11 Plan [Dkt. No. 324] (the “Confirmation Order”). Pursuant to the Plan and Confirmation Order, the Debtors settled and resolved numerous claims and disputes and established a liquidating trust to, among other things, provide for the plugging, abandonment, and decommissioning of various oil and gas properties in which the Debtors have an interest. 8. On June 30, 2021, the Plan became effective (the “Effective Date”). 9. The Plan established the deadline for seeking the payment of compensation or reimbursement of expenses of a professional incurred on and after the Petition Date and prior to the Effective Date, including fees and expenses incurred in preparing final fee applications and participating in hearings on such applications, and requested in accordance with the provisions of Bankruptcy Code sections 326, 327, 328, 330, 331, 502(b) or 1103 as sixty (60) days after the Effective Date, or August 29, 2021 (the “Professional Compensation Claim Bar Date”). As August 29, 2021 falls on the weekend, the Professional Compensation Claim Bar Date is August 30, 2021. 2 Id. 3 Case Number 21-30710, Doc. No. 18. 4 Case Number 21-30710, Doc. No. 2.

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10. Under the Plan, objections to timely filed Professional Compensation Claims are due by no later than twenty-one (21) days after the Professional Compensation Claim Bar Date, or September 20, 2021. RETENTION OF SRBA 11. On March 10, 2021, the Office of the United States Trustee filed that certain Notice of Appointment of Official Committee of Unsecured Creditors [Dkt. No. 71], followed by an Amended Notice of Appointment of Official Committee of Unsecured Creditors [Dkt. No. 75], appointing a Committee pursuant to section 1102 of the Bankruptcy Code. The Committee, as reconstituted, consists of the following members: (i) Wood Group PSN Inc., (ii) Petra Consultants Inc., (iii) W&T Offshore, Inc., (iv) Shore Offshore Services LLC, and (v) Offshore Marine Contractors, Inc. 12. On April 8, 2021, the Committee filed an Application to Employ Paul Douglas Stewart Jr. & Stewart Robbins Brown & Altazan, LLC as Attorneys [Dkt. No. 156]. 13. The Court entered an order granting the approval of the employment of SRBA as counsel to the Committee on May 4, 2021 (the “SRBA Employment Order”) [Dkt. No. 228]. The SRBA Employment Order authorizes SRBA to be compensated on an hourly basis and to be reimbursed for actual and necessary out-of-pocket expenses in accordance with the Bankruptcy Code, the Bankruptcy Rules, the Local Rules, and the Complex Case Rules. 14. The SRBA Employment Order also authorizes the Committee to compensate SRBA at SRBA’s hourly rates normally charged for services of this type and to reimburse SRBA for actual and necessary out-of-pocket expenses incurred by SRBA, subject to Court approval. 15. All services for which compensation is requested by SRBA were performed for or on behalf of the Committee.

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MONTHLY FEE STATEMENTS 16. On April 13, 2021, the Court entered that certain Order Approving Procedures for the Interim Compensation and Reimbursement of Expenses of Professionals [Dkt. No. 181] (the “Interim Procedures Order”). Applicant circulated three (3) Monthly Fee Statements under the Interim Procedures Order. Applicant also generated a fourth invoice that was not circulated under the Interim Procedures Order (as there was no use of cash collateral available under the relevant cash collateral order) covering the time period from entry of the Confirmation Order on June 7, 2021, through the Effective Date of June 30, 2021. 17. SRBA’s Monthly Fee Statements, as well as its unpaid June 2021 invoice, are attached as Exhibit “D”. The invoices contain daily time entries describing the time spent by each attorney and paraprofessional for each month. The hourly rates set forth in the monthly fee statements are those customarily charged by SRBA for similar legal services. SRBA’s fees for services rendered by lawyers, paralegals, and other paraprofessionals are customary and usual in the legal community in which SRBA practices. To the best of SRBA’s knowledge, this Application complies with sections 330 and 331 of the Bankruptcy Code, the Bankruptcy Rules, the Local Rules, Judge Isgur’s Procedures, the Complex Case Rules and the Guidelines. 18. A summary of amounts paid and outstanding as to SRBA’s Monthly Fee Statements and previously uncirculated June invoice (for post-confirmation time) is as follows: SRBA Invoices Circulated Under Interim Fee Procedures Order Date Invoice Circulated Time Period Fees Fees Paid Expenses Expenses Paid 4/25/2021 March $ 104,063.00 $ 83,250.40 $ - $ - 5/15/2021 April $ 113,510.00 $ 90,808.00 $ 5,072.22 $ 5,072.22 6/15/2021 May - June 7 $ 163,941.00 $ 89,582.38 $ 1,944.15 $ 1,944.15 n/a June 7 - 30 $ 48,917.00 $ - $ 1,129.13 $ - Totals $ 430,431.00 $ 263,640.78 $ 8,145.50 $ 7,016.37 Total Unpaid $ 167,919.35

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19. There is no agreement or understanding between SRBA and any other person other than the members of SRBA for the sharing of compensation to be received for services rendered in this chapter 11 case. ACTUAL AND NECESSARY EXPENSES 20. During the Final Application Period, SRBA incurred expenses in connection with its representation of the Committee totaling $8,145.50. These expenses are summarized in Exhibit “C”. SRBA bills clients at $0.20 per page for photocopies. Additionally, the expenses incurred include the actual cost of automated research and courier service. Mileage is calculated at the rate accorded by the Internal Revenue Service. Conference call charges represent actual cost of conference calls. Automated research charges represent actual cost charged to SRBA. SRBA submits that all effort was made to keep out-of-pocket expenses at a minimum and that such expenses are reasonable based on the services provided heretofore by the SRBA. SUMMARY OF SERVICES RENDERED 21. SRBA’s professional services rendered on behalf of the Committee were necessary and appropriate and have directly contributed to the benefit of general unsecured creditors of this bankruptcy estate and the successful reorganization of the Debtors. SRBA assisted and advised the Committee in its consultations with the Debtors relative to the administration of the Bankruptcy Case and assisted the Committee in its analysis of, and negotiations with, the Debtors concerning matters related to Debtors’ cash collateral order, the investigation of the pre-petition conduct of the Debtors’ officers, directors and lenders, and the Debtors’ chapter 11 plan, settlement term sheet and trust agreement. 22. Specifically, on behalf of the Committee, SRBA was engaged primarily in efforts related to: (1) the opposition and negotiation of the Debtors’ cash collateral order; (2) investigating

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the pre-petition conduct of Debtor’s officers, directors and lenders; (3) negotiating with the Debtors and other parties-in-interest regarding the Debtors’ proposed plan of reorganization; and (4) the negotiation and formation of the Castex Liquidating Trust. 23. The total value of fees for professional services rendered by SRBA to the Committee during the Final Application Period was $430,431.00. A listing of the number of hours, hourly rates, and total value of services expended by the professionals and paraprofessionals who performed services for the Committee during the Final Application Period is attached hereto as Exhibit “A”. A summary of the professional services rendered by SRBA during the Final Application Period are summarized by project category is attached as Exhibit “B” and summarized as follows: a. B110 Case Administration i. Fees: $5,049.00; Total Hours: 12.80 This category includes all matters related to coordination and compliance, including the review of schedules and statements, monthly operating and other reports, contacts with the United States Trustee, and creditor inquiries. SRBA communicated with counsel for the Debtors on numerous issues throughout the case dealing with basic case administration. b. B120 Asset Analysis and Recovery i. Fees: $92,655.50; Total Hours: 250.30 This category includes all matters related to the identification and review of potential assets including causes of action and non-litigation recoveries. For example, during the Final Application Period, SRBA analyzed the Debtors’ asset and debt structure, analyzed the relationship between the Debtors and its secured lenders, and former management. Moreover, SRBA analyzed the merit and collectability of certain actions against such persons and entities. SRBA issued numerous

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subpoenas to over fifteen lender entities as well as to the Debtors and Debtors’ former management. SRBA worked closely with the subpoenaed entities to tailor the requests and time the production. Rolling production resulted in approximately 20,000 documents produced which required extensive review and analysis in an attempt to determine whether liens and claims could be avoided or reduced in scope, as well as whether actions would lie to recover potential assets for the Debtors’ estate. c. B130 Asset Disposition i. Fees: $7,558.80; Total Hours: 18.10 This category includes all matters related to the disposition of the Debtors’ nonresidential real property and other asset dispositions. SRBA reviewed and analyzed information regarding sales of property by the Debtors to third parties. d. B140 Relief from Stay/Adequate Protection Proceedings i. Fees: $267.00; Total Hours: 0.60 This category includes all matters relating to termination or continuation of the automatic stay under 11 U.S.C. § 362 and motions for adequate protection. e. B150 Meetings of and Communications with Creditors i. Fees: $35,382.50; Total Hours: 78.30 This category includes all matters SRBA communicated with its committee members, individual creditors, and professionals engaged by the Committee to assist the Committee in its analysis of the Debtors’ financial restructuring options. f. B160 Fee/Employment Applications i. Fees: $17,536.50; Total Hours: 47.70

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This category includes all matters relating to the preparation of employment and fee applications for SRBA and other professionals and motions to establish interim procedures. SRBA prepared its own application to employ as well as that of the Committee’s financial advisor, Seaport Global Securities, LLC. SRBA also reviewed the applications filed by other estate professionals engaged in the case and communicated with relevant parties regarding same. g. B170 Fee/Employment Objections i. Fees: $1,181.00; Total Hours: 3.20 This category includes all matters relating to the preparation of drafting objections of fee applications for other professionals and motions. h. B180 Avoidance Action Analysis i. Fees: $21,390.50 Total Hours: 56.10 This category includes all matters relating to the review of potential avoidance actions under 11 U.S.C. §§ 544-549 to determine whether adversary proceedings are warranted. SRBA reviewed numerous documents to determine the potential avoidability of transfers made by the Debtors, and to preserve same for the benefit of the estate. i. B185 Assumption/Rejection of Leases and Contracts i. Fees: $113.50; Total Hours: 0.30 This category includes review of issues associated with the assumption and rejection of certain executory contracts and leases. As most assumption/rejection matters were intertwined with the plan confirmation process, SRBA spent minimal time within this project category. j. B190 Other Contested Matters i. Fees: $39,222.50 Total Hours: 92.40

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This category includes all matters regarding analysis and preparation of all motions, opposition to motions, and reply memoranda in support of motions, other than motions to assume or reject executory contracts and unexpired leases. Specifically, SRBA analyzed pending litigation involving the Debtors and certain creditors seeking actions which could impinge on the reorganization efforts of the Debtors. Additionally, SRBA advised the committee and participated in a variety of motions filed of record in the matter. Furthermore, SRBA analyzed a variety of settlements entered into by the Debtors and third parties. SRBA also communicated with counsel for the Debtors on numerous litigation related items. k. B210 Business Operations i. Fees: $5,907.00; Total Hours: 13.00 This category includes analysis of the Debtors’ operational issues, including determinations to shut-in production of certain wells. SRBA spent time analyzing such matters and communicating both with the Committee and with counsel for the Debtors. l. B230 Financing/Cash Collections i. Fees: $50,278.00 Total Hours: 118.20 This category includes addressing matters under 11 U.S.C. §§ 361, 363, and 364, including cash collateral and secured claims, as well as loan document analysis. SRBA drafted objections to the initial Cash Collateral Motion filed by the Debtors, communicated with the Committee, the Debtors, and the secured lenders extensively to resolve objections to same. Further, SRBA spent time throughout the case analyzing matters relating to the Debtors compliance with the cash collateral order, possible extensions thereof, and the like, as well as communicating with counsel for the Debtors and the secured lenders regarding such issues and communicating with the Committee regarding same.

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m. B260 Board of Director Matters i. Fees: $1,350.50 Total Hours: 4.10 This category includes all matters related to issues raised by the Debtors involving its board of directors, including whether counsel for such could be employed on an ordinary course basis. n. B310 Claims Administration and Objections i. Fees: $6,478.00 Total Hours: 16.40 This category includes addressing specific claim inquiries and analysis of objections to, and allowance of claims. SRBA spent time reviewing certain claim issues and the possibility of objection to same. o. B320 Plan and Disclosure Statement i. Fees: $146,041.00 Total Hours: 349.60 This category includes all matters related to plan formulation, presentation, and confirmation, as well as compliance with the Plan confirmation order, related orders, and rules. This category also includes addressing disbursement and case closing activities, except those related to the allowance and objections to allowance of claims. SRBA extensively participated in the plan drafting process and numerous drafts and revisions were circulated between SRBA and Debtors’ counsel throughout the process. SRBA met with the Committee to discuss strategy regarding the Debtors’ chapter 11 Plan and analyzed disclosure statement issues including post-bankruptcy events and liquidation value with the Committee and the Committee’s financial advisor. Further, SRBA participated in multiple telephone conference calls with the Debtors’ counsel regarding Plan confirmation and disclosure statement issues. Additionally, SRBA analyzed issues regarding chapter 11 Plan preparation, including valuations and third-party contributions.

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Furthermore, SRBA worked closely with the Debtors and objectors to the plan to resolve issues leading up to the hearing on confirmation of the Debtors’ Plan. Throughout the Final Application Period, SRBA maintained constant contact with the Debtors’ counsel and the Committee. SRBA additionally worked closely with interested parties to accommodate extended time periods for said parties to file objections and ballots to vote on the Debtors’ Plan. Finally, SRBA extensively prepared for the hearing on confirmation of the Debtors’ Plan and attended the same. FACTORS SUPPORTING AWARD 24. In In re Crager, 691 F.3d 671, 676 (5th Cir. 2012), the Fifth Circuit ruled that the six factors found in 11 U.S.C. §330(a)(3) are to be considered when awarding compensation to professionals. Under §330, the court “shall consider the nature, the extent, and the value of such services, taking into account all relevant factors,” including: (A) the time spent on such services; (B) the rates charged for such services; (C) whether the services were necessary to the administration of, or beneficial at the time at which the service was rendered toward the completion of, a case under this title; (D) whether the services were performed within a reasonable amount of time commensurate with the complexity, importance, and nature of the problem, issue, or task addressed; (E) with respect to a professional person, whether the person is board certified or otherwise has demonstrated skill and experience in the bankruptcy field; and (F) whether the compensation is reasonable based on the customary compensation

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charged by comparably skilled practitioners in cases other than cases under this title. 11 U.S.C. § 330(a)(3). 25. Rejecting the “hindsight” or “material benefit” standard that was originally set forth in In re Pro-Snax Distributors, Inc., 157 F.3d 414 (5th Cir. 1998), the Fifth Circuit adopted a prospective standard based on whether the services of counsel were reasonably likely to benefit the estate at the time in which they were rendered. See In re Woerner, 783 F.3d 266, 276 (5th Cir. 2015). All services rendered by SRBA satisfy the Woerner standard because they were reasonably likely to benefit the estate at the time rendered. 26. SRBA also believes that as applied to the firm’s services in this chapter 11 case, the following analysis of the section §330(a)(3) factors are appropriate: a. The Time and Labor Expended. The charge for SRBA’s services in this case for the Final Application Period totals $430,431.00. The actual time expended by SRBA in the Final Application Period is set forth in detail in the Monthly Fee Statements and invoices attached as Exhibit “D”. In addition, attached as Exhibit “B” is a summary by project of time expended on discrete matters during the progress of this case. SRBA believes the time spent performing legal services was commensurate with the factual and legal issues involved in the representation of the Committee. b. The Rate Charged for Such Services. SRBA has applied for allowance of compensation for fees that reflect its billing rates charged to clients by SRBA and previously approved and/or set by courts in which SRBA has appeared. SRBA believes that its customary fees for services are equal to or below those of other firms in the national bankruptcy community and should be within the range of fees approved for attorneys of similar experience within this District. In addition, attached hereto as Exhibit “A” is a summary by fee earner of time expended on discrete matters during the progress of this case. c. Whether the services were necessary to the administration of, or beneficial at the time at which the service was rendered toward the completion of, a case under this title. SRBA asserts that all services provided to the Committee were necessary to the administration of and/or beneficial to the bankruptcy case at the time the services were rendered. Where SRBA deemed the time spent not to be a

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benefit, it either indicates “no charge” or “reduced” or, in some situations, did not put the time into its billing system. d. Whether the services were performed within a reasonable amount of time commensurate with the complexity, importance, and nature of the problem, issue, or task addressed. SRBA submits that the time put into this case is commensurate with the level of difficulty of the issues presented. When possible, particular projects have been handled by an associate or a partner with a lower billing rate. e. With respect to a professional person, whether the person is board certified or otherwise has demonstrated skill and experience in the bankruptcy field. SRBA believes and respectfully submits that its attorneys are highly regarded as experts in the areas of bankruptcy, insolvency, and corporate reorganization. The firm has extensive experience in handling bankruptcy and insolvency matters on behalf of debtors in bankruptcy cases and has acted as counsel to other debtors and trustees in other cases. One of the SRBA lawyers who worked on this file has gone through the certification process and is certified. 27. “The Fifth Circuit uses the ‘lodestar’ method to calculate attorney’s fees.” Transamerican Natural Gas Corp. v. Zapata P'ship, Ltd. (In re Fender), 12 F.3d 480, 487 (5th Cir. 1994) (citation omitted). The lodestar is the number of hours reasonably expended multiplied by “the prevailing hourly rate in the community for similar work.” Id. The request for fees is then adjusted upward or downward based on the iconic “Johnson factors.” Johnson v. Georgia Highway Express, Inc., 488 F.2d 714 (5th Cir. 1974). A detailed description of the application of each of these factors relevant to this Application is set forth below. a. The Novelty and Difficulty of Issues – This case has presented issues of greater difficulty than cases customarily brought before this court. b. The Skills Required for Performance of Services – SRBA’s attorneys have appeared before courts in this district and throughout Louisiana, Mississippi and Texas in bankruptcy cases on behalf of debtors, creditors, trustees, and receivers for many years. SRBA believes and respectfully submits that it is highly regarded in the areas of bankruptcy law, commercial law, and the law of secured transactions in the State of Louisiana. SRBA's attorneys possess the experience, reputation, and ability to merit an award of the requested compensation and reimbursement.

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c. Preclusion from Other Employment - While SRBA was not precluded from other employment during this application period, the professionals who have devoted time to this case were prevented from working on other matters. d. The Customary Fees - SRBA has applied for allowance of compensation for fees that reflect its billing rates charged to clients by SRBA. SRBA believes that its customary fees for services are equal to or below those of other firms in the national bankruptcy community and within the range of fees approved for attorneys of similar experience within the Texas bankruptcy courts. e. Contingent Nature of Fees - These fees were contingent to the extent that all fees due counsel in a pending bankruptcy proceeding are contingent upon the success of the case, the availability of cash, review by the Office of the United States Trustee, and the approval of the Bankruptcy Court. f. Time Limitations and Other Circumstances - From the outset of SRBA's employment, SRBA and the Committee have been moving at an accelerated pace. This case has involved the usual filing deadlines for motion practice and involved speedy analysis and response. g. The Amount Involved and the Results Obtained - SRBA submits that the amount sought is fully commensurate with the results obtained. SRBA respectfully submits that its services were, at the time rendered, believed to be necessary for and beneficial to the Committee and were rendered to protect and preserve the Committee’s rights during the pendency of the chapter 11 cases. As demonstrated herein, SRBA spent its time economically and without unnecessary duplication. The services were performed in an effective and efficient manner commensurate with the complexity, exigency, and importance of the issues involved. h. Experience, Reputation and Ability - The Committee selected SRBA based on its extensive experience and knowledge of the legal matters likely to arise in the chapter 11 cases, and, in particular, SRBA’s recognized expertise in the field of financial restructuring and bankruptcy. Applying this expertise in the chapter 11 cases allowed the Committee to maximize the value of the estate on behalf of the unsecured creditors. i. The Undesirability of the Case - This case was not undesirable. j. The Nature and Length of the Professional Relationship with the Client - None. k. Awards in Similar Cases - SRBA avers that an order of compensation on the basis provided for is comparable to that awarded in similar cases in this district and in other Texas bankruptcy courts. 28. SRBA makes the following disclosures pursuant to the Guidelines:

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Guidelines Question Response Did Applicant agree to any variations from, No. or alternatives to, its standard or customary billing rates, fees or terms for services pertaining to this engagement that were provided during the Application Period? If the fees sought in this Application as n/a. compared to the fees budgeted for the time period covered by this Application are higher by 10% or more, did you discuss the reasons for variation with the client? Have any of the professionals included in this No. Application varied their hourly rate based on the geographic location of the Chapter 11 Cases? Does the Application include time or fees A minimal amount of time may be included relating to review, revising, or reducing time within the Application. records or preparing, reviewing or revising invoices? Does this Application include time or fees for No. reviewing time records to redact any privileged or other confidential information? If the Application includes any rate increases n/a. since retention, did the Committee review and approve those rate increases in advance? Did the Committee agree when retaining Applicant to accept all future rate increases?

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NOTICE 29. Notice of this Application is being provided to all necessary parties in interest on the Master Service List in accordance with the Complex Case Procedures. Applicant respectfully submits that such notice is sufficient, and no further notice is required. CERTIFICATION OF COUNSEL 30. By my signature on this Final Application, I, Paul Douglas Stewart, Jr., do hereby certify that (i) I have read this application; (ii) to the best of my knowledge, information and belief, formed after reasonable inquiry, the compensation and expense reimbursement sought is in conformity with these guidelines, except as specifically noted in the application; and (iii) the compensation and expense reimbursement requested are billed at rates in accordance with practices no less favorable than those customarily employed by SRBA and generally accepted by SRBA’s clients. EXHIBITS TO APPLICATION 31. Additionally, attached to this Application are the following: • Exhibit A – Aggregate valuation of services chart identifying the attorneys and paraprofessionals who rendered services during the case relating to each category, along with the aggregate number of hours for each individual and the total billed amount. • Exhibit B – Aggregate amount of fees requested for the case, categorized by task code. • Exhibit C – Aggregate amount of expenses requested for reimbursement for the case. Exhibit D – SRBA’s Monthly Fee Statements covering March through June 7, 2021, and invoice covering June 7 – 30, 2021 that was not circulated under the Interim Compensation Order. WHEREFORE, SRBA respectfully requests that the Court enter an order substantially in the form attached hereto: (a) allowing final compensation and reimbursement of expenses in the

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sums of $430,431.00 in fees and $8,145.50 in expenses, for a total award of $438,576.50 incurred by SRBA from March 12, 2021 through June 30, 2021, (b) allowing payment of the unpaid portion of such award from the Professional Fee Escrow, and (c) granting such other and further relief as this Court may deem just and proper. Dated: August 27, 2021 Respectfully Submitted, STEWART ROBBINS BROWN & ALTAZAN, LLC /s/ Paul Douglas Stewart, Jr. Paul Douglas Stewart, Jr. (La. Bar # 24661, admitted to SDTX) dstewart@stewartrobbins.com Brandon A. Brown (Tx. Bar No. 24104237) bbrown@stewartrobbins.com 301 Main Street, Suite 1640 Baton Rouge, LA 70801-0016 Telephone: (225) 231-9998 Facsimile: (225) 709-9467 Attorneys for Castex Liquidating Trust and Post-Effective Date Debtors

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EXHIBIT A (Aggregate Valuation of Services Chart)

21

Table 1 on page 22. Back to List of Tables
Professional Title Date
Licensed
Blended
Rate
Amount % Hours %
Brandon A. Brown Member LA- 1998;
TX - 2017
$ 445.00 $ 1 38,350.50 32.14 310.90 29.30
Brooke W. Altazan Member LA - 2009;
TX - 2016
$ 365.00 $ 12,081.50 2.81 33.10 3.12
Karina Shareen Associate LA 2020 $ 245.00 $ 20,065.50 4.66 81.90 7.72
Kimberly A. Heard Legal
Assistant
n/a $ 150.00 $ 6,795.00 1.58 45.30 4.27
Nicholas J. Smeltz Associate LA - 2019 $ 237.71 $ 15,427.50 3.58 64.90 6.12
Paul Douglas Stewart, Jr. Member LA - 1996 $ 455.00 $ 1 85,913.00 43.19 408.60 38.51
William S. Robbins Member LA - 1996;
TX - 2017
$ 445.00 $ 51,798.00 12.03 116.40 10.97
Totals $ 405.65 $ 4 30,431.00 100 % 1,061.10 100 %

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EXHIBIT B (Aggregate Fees by Task Code)

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ABA Bankruprtcy Project Code Amount Percent Hours Percent Blended Rate
Table 1 on page 24. Back to List of Tables
b110 - Case Administration
b120 - Asset Analysis and Recovery
$ 5,049.00
$ 92,655.50
1.17
21.53
12.80
250.30
1.21
23.59
$ 3 94.45
$ 3 70.18
b130 - Asset Disposition $ 7,558.50 1.76 18.10 1.71 $ 4 17.60
b140 - Relief from Stay/Adequate Protection Proceedings $ 267.00 0.06 0.60 0.06 $ 4 45.00
b150 - Meetings of and Communications with Creditors $ 35,382.50 8.22 78.30 7.38 $ 4 51.88
b160 - Fee/Employment Applications $ 17,536.50 4.07 47.70 4.50 $ 3 67.64
b170 - Fee/Employment Objections $ 1,181.00 0.27 3.20 0.30 $ 3 69.06
b180 - Avoidance Action Analysis $ 21,390.50 4.97 56.10 5.29 $ 3 81.29
b185 - Assumption/Rejection of Leases and Contracts $ 133.50 0.03 0.30 0.03 $ 4 45.00
b190 - Other Contested Matters $ 39,222.50 9.11 92.40 8.71 $ 4 24.49
b210 - Business Operations $ 5,907.00 1.37 13.00 1.23 $ 4 54.39
b230 - Financing/Cash Collections $ 50,278.00 11.68 118.20 11.14 $ 4 25.36
b260 - Board of Directors Matters $ 1,350.50 0.31 4.10 0.39 $ 3 29.39
b310 - Claims Administration and Objections $ 6,478.00 1.51 16.40 1.55 $ 3 95.00
b320 - Plan and Disclosure Statement $ 1 46,041.00 33.93 349.60 32.95 $ 4 17.74
Totals $ 4 30,431.00 100 % 1,061.10 100 % $ 4 05.65

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EXHIBIT C (Aggregate Expenses)

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Expense Category Expense Conference Call $49.91 Copies $2,165.80 County Clerk Searches $0.40 EDI Database Cost $1,255.00 Pacer $505.90 Secretary of State Searches $21.58 Subpoena Costs $3,519.16 Transcript Cost $73.20 Transunion Searches $236.55 UCC Searches $318.00 Grand Total $8,145.50

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EXHIBIT D (SRBA Monthly Fee Statements and Invoice) March 2021 April 2021 May – June 7, 2021 June 7, 2021 – June 30, 2021 (uncirculated)

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UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION In re Chapter 11 CASTEX ENERGY 2005 HOLDCO, LLC, Case No. 21-30710 (MI) et al.1 Debtors. (Jointly Administered) FIRST MONTHLY STATEMENT OF SERVICES RENDERED AND EXPENSES INCURRED FOR THE PERIOD MARCH 12, 2021 THROUGH MARCH 31, 2021 BY STEWART ROBBINS BROWN & ALTAZAN, LLC AS COUNSEL TO THE OFFICIAL COMMITTEE OF UNSECURED CREDITORS Stewart Robbins Brown & Altazan (“SRBA”)2, proposed counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLC, et al. (the “Committee”), hereby submits this First Monthly Fee Statement for Services Rendered and Expenses Incurred (the “Monthly Fee Statement”) for the period March 12, 2021 through March 31, 2021 (the “Statement Period”), in accordance with the Court’s order dated April 13, 2021, establishing interim compensation procedures for this case (the “Compensation Order”) [Docket No. 181].3 In support of the Monthly Fee Statement, SRBA respectfully represents as follows: [Statement continued on following page.] 1The Debtors in these chapter 11 cases, along with the last four digits of each Debtor’s federal tax identification number, as applicable, are: Castex Energy 2005 Holdco, LLC (6832); Castex Energy 2005, LLC (6832); Castex Energy Partners, LLC (6832); and Castex Offshore, Inc. (8432). The Debtors’ mailing address is: One Memorial City Plaza, 800 Gessner Rd., Suite 925, Houston, TX 77024. 2 Capitalized terms used but not otherwise defined herein shall have the meanings ascribed to them in the Compensation Order. 3 SRBA moved for approval of its employment on April 8, 2021 and acknowledges that its employment has not been approved by the Court. SRBA suggests that this Monthly Fee Statement be deemed to have been circulated upon the date that the Court approves its employment.

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Relief Requested 1. SRBA respectfully submits this Monthly Fee Statement for (i) compensation of fees for reasonable, actual and necessary services rendered by SRBA on behalf of the Committee during the Statement Period; and (ii) reimbursement of reasonable, actual and necessary expenses incurred by SRBA on behalf of the Committee during the Statement Period. 2. SRBA seeks compensation for processional services rendered and reimbursement of expenses incurred during the Statement Period in the amounts set forth as below: Total Fees: $ 83,250.40 (80% of $104,063.00) Total Expenses: $0.00 Total: $83,250.40 3. SRBA’s invoice covering the Statement Period and providing a detailed statement of hours spent rendering legal services and to the Committee and detailed list of disbursements made or incurred by SRBA in connection with services performed on behalf of the Committee during the Statement Period is attached hereto as Exhibit “A”. 4. Pursuant to the Compensation Order, SRBA seeks payment of $ $83,250.40 from the Debtors for the Statement Period, representing (a) 80% of SRBA’s total fees for services rendered and (b) 100% of the total expenses incurred during the Statement Period. Notice 5. In accordance with the Compensation Order, notice of this Monthly Fee Statement has been served upon the following parties (collectively, as further defined in the Compensation Order, the “Fee Parties”): (i) the Debtors’ Chief Restructuring Officer, Attn: Douglas J. Brickley (dbrickley@theclarogroup.com); (ii) counsel for the Debtors, Attn: Matthew S. Okin (mokin@okinadams.com), David L. Curry, Jr. (dcurry@okinadams.com), and Ryan A. O’Connor

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(roconnor@okinadams.com); (iii) the Office of the United States Trustee for the Southern District of Texas, Attn: Ha Nguyen (ha.nguyen@usdoj.gov); (iv) counsel to Capital One, NA, as Prepetition Agent under the Prepetition Credit Agreement, Attn: Matthew Warren, Esq. (mwarren@kslaw.com); and (v) counsel to the Committee, Attn: Paul Douglas Stewart (dstewart@stewartrobbins.com) and Tom A. Howley (tom@howleylaw. com). Dated: April 15, 2021 Baton Rouge, Louisiana STEWART ROBBINS BROWN & ALTAZAN, LLC By: /s/ P. Douglas Stewart, Jr. Paul D. Stewart (LA. Bar # 24661, admitted SDTX) William S. Robbins (TX Bar # 24100894) Brandon A. Brown (TX Bar # 24104237) Brooke W. Altazan (TX Bar # 24101002) Baton Rouge, LA 70801-0016 Telephone: (225) 231-9998 Facsimile: (225) 709-9467 dstewart@stewartrobbins.com wrobbins@stewartrobbins.com bbrown@stewartrobbins.com baltazan@stewartrobbins.com Proposed Counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, L.L.C.

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CASTEX ENERGY 2005 HOLDCO, LLC, ET AL. EXHIBIT A DETAILED TIME AND EXPENSE ENTRIES MARCH 12, 2021 – MARCH 31, 2021

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301 Main Street, Suit Baton Rouge, LA 7 225-231-9998 y Gibilterra April 6, File #: 63 Invoice #: Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLCDESCRIPTION Task LAWYER HOURS Rate AM 2021 Prepare Notice of Appearance (.3); review B110 KAH 0.70 150.00 1docket (.3); emails related to same (.1). 2021 Begin analysis of docket, motions live, B110 BAB 2.60 445.00 1,1deadlines, briefing needs, other issues 2021 Teleconference with M. Okin re case. B120 PDS 0.40 455.00 12021 Review of engagement agreement and B160 PDS 1.40 455.00 6contact list and pleadings on docket. 2021 Attention to Capital One documents received B120 KAH 0.50 150.00 from King & Spalding; electronic document organization. 2021 Finalize Notice of Appearance. B110 KAH 0.20 150.00 2021 Began review and analysis of Prepetition B120 KS 1.20 245.00 2Loan Documents 2021 Communication with M. Okin, M. Warren, and B110 PDS 0.20 455.00 Committee members re case and introductory calls (.2); . 2021 Tleconference with M. Warren and his team B120 PDS 0.60 455.00 2re: case 2021 initial review and analysis of case posture B120 WSR 4.80 445.00 2,1and UCC issues (1.8); conference call with counsel for Capital One (.5); conference call with Debtor’s counsel (.5); review and analysis of Capital One lien issues (2.0) 2021 Initial team meeting to discuss strategy, B230 BAB 1.80 445.00 8deadlines, briefing needs (1.0) (N/C); prepare for and participate in conference with lenders' counsel (0.6); prepare for and participate in telephone conference with debtors' counsel (0.7); multiple emails with same re: initial issues, access to documents (0.5) 2021 Case analysis and overview (N/C) B110 NJS 0.00 255.00 2021 Review/analyze Declaration of D. Brickley B230 NJS 0.00 255.00 (N/C) 2021 Review/analyze Debtors Cash Collateral B230 NJS 0.00 255.00 Motion (NC).

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and provided notes to team for negotiation and opposition to final approval. 2021 Detailed review of Chapter 11 Plan and B320 PDS 2.70 455.00 1,2summarized for report to Committee. 2021 Begin review and analysis of debtors' cash B230 BAB 2.60 445.00 1,1collateral motion and interim order, highlight issues for committee discussion 2021 Multiple emails with various potential FA's for B150 BAB 0.40 445.00 1committee 2021 Continued review of Prepetition Loan B120 KS 5.70 245.00 1,3Documents 2021 Review/analyze Interim Order Authorizing B230 NJS 0.00 255.00 Use of Cash Collateral and development of summary of such (N/C) 2021 Continued review of Prepetition Loan B120 WSR 1.50 445.00 6Documents 2021 Prepare Notice of Appearance and Request B110 KAH 0.20 150.00 for Notice for B. Brown. 2021 Begin review of extensive library of B180 BAB 0.00 445.00 transactional documents provided by lenders regarding loan and security agreements and perfection of interests (N/C) 2021 Revisions to engagement letter; email to B110 KAH 0.30 150.00 committee re: same. 2021 Continued detailed review of chapter 11 plan B320 PDS 3.60 455.00 1,6in advance of Committee report and call (1.6); Communication with L. Phillips re meeting with CEI (.2); revised weekly presentation for Committee regarding Counsel's investigation and efforts in the case thus far (1.8). 2021 Review/analyze CEI response to Debtors B230 NJS 0.60 255.00 1Motion authorizing Cash Collateral 2021 Begin drafting opposition to debtors' cash B230 BAB 6.30 445.00 2,8collateral motion 2021 Receipt and review of Debtor's motion to lift B140 BAB 0.60 445.00 2stay with regard to appeal, analyze same. 2021 Continued review of Prepetition Loan B120 KS 5.50 245.00 1,3Documents 2021 Review/analyze Disclosure Statement (N/C) B230 NJS 0.00 255.00 2021 Continued review of Prepetition Loan B120 WSR 2.80 445.00 1,2Documents; review proposed committee report. 2021 Review/analyze presentation (NC). B150 NJS 0.00 255.00 2021 Preparation for, and attendance at, weekly B150 PDS 2.10 455.00 9committee meeting. 2021 Meeting with CEI and counsel re case and B120 PDS 3.40 455.00 1,5

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case. 2021 Continue drafting opposition to debtor's cash B230 BAB 4.80 445.00 2,1collateral motion 2021 Multiple emails with committee re: meeting B150 BAB 0.30 445.00 1items for discussion 2021 Continued review of Prepetition Loan B120 KS 7.30 245.00 1,7Documents 2021 Review/analyze declaration of D. Brickley in B230 NJS 0.00 255.00 support of Ch 11 Petition and First Day Motions (N/C) 2021 Review/analyze Chapter 11 Plan (N/C) B230 NJS 0.00 255.00 2021 Review/analyze Disclosure Statement (N/C) B230 NJS 0.00 255.00 2021 with unsecured creditor committee (N/C) B150 NJS 0.00 255.00 2021 Communication with re potential B120 PDS 0.90 455.00 4alternative transaction. 2021 Review UCC materials; attend weekly UCC B120 WSR 0.00 445.00 call; review and analyze secured positions (N/C) 2021 Communicate (other outside counsel) with B120 NJS 0.00 255.00 CEI and counsel (N/C) 2021 Prepare for and participate in committee B150 BAB 0.90 445.00 4meeting on topic of cash collateral. 2021 Review of documents for information B120 KAH 0.50 150.00 regarding Capital One security interest 2021 Planning of initial discovery requests and B320 PDS 3.60 455.00 1,6related communication with M. Okin and R. O'Conner re confidentiality provision. 2021 Initial review of Debtor's motion for Entry of B190 PDS 0.20 455.00 an Order Authorizing the Retention and Compensation of Certain Professionals Utilized in the Ordinary Course of Business. 2021 Review of Debtor's Motion for Administrative B190 PDS 0.10 455.00 Order Under 11 U.S.C. §§ 105(a) and 331 Establishing Procedures for Interim Compensation and Reimbursement of Expenses of Professionals and related communication with Debtors. 2021 Communication with M. Okin and L. Phillips B320 PDS 0.50 455.00 2re CEI documents and confidentiality agreement. 2021 Review and analyze debtor's motion to B160 BAB 0.90 445.00 4employ certain professionals as "ordinary course" professionals 2021 Continued review of Prepetition Loan B120 KS 4.60 245.00 1,1Documents 2021 Draft Application to Employ SRBA and B160 BWA 2.30 365.00 8related declarations

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motion (N/C) 2021 Continue drafting opposition to debtor's cash B230 BAB 7.10 445.00 3,1collateral motion (4.3); analysisi of other issues presented in cash collateral motion (2.8). 2021 review and analysis of Oil & Gas assets B120 WSR 1.00 445.00 42021 Evaluation of FA's for Committee and B160 PDS 2.70 455.00 1,2communication with same re fee structure and engagement agreement/terms. 2021 Continue drafting opposition to debtors' cash B230 BAB 5.70 445.00 2,5collateral motion 2021 Emails with local counsel re: FA solicitation B150 BAB 0.40 445.00 1materials 2021 review of, and comments and revisions to, B230 PDS 1.60 455.00 7cash collateral response. 2021 Review and analyze revisions to objection. B230 BAB 0.70 445.00 32021 Planning discovery strategy for Rule 26 and B320 PDS 9.60 455.00 4,3Rule 45 discovery regarding confirmation issues to CEI, Debtors, professionals, board and lenders and drafting/revising subpoena and document requests for Castex Energy, Inc. and related communication with M. Okin, M. Warren, and L. Phillips. 2021 Communications with several potential FA's B160 PDS 0.20 455.00 regarding case and FA's fee structures. 2021 Communication with creditor's counsel B150 PDS 0.10 455.00 re case. 2021 Begin review and analysis of debtors' motion B160 BAB 1.40 445.00 6to employ Schooner 2021 Review and revise proposed subpoena B190 BAB 2.10 445.00 9attachment to CEI 2021 Analyze investigatory needs for CC motion, B230 BAB 1.80 445.00 8prepare questions to debtors' counsel re: 2021 Begin redlining interim order to comport with B230 BAB 3.60 445.00 1,6committee objections 2021 Call with T. Howley and B. Brown re cash B230 PDS 0.00 455.00 collateral opposition (N/C) 2021 Drafting Bylaws for Committee B260 KS 1.60 245.00 32021 Continued review of Prepetition Loan B120 KS 2.60 245.00 6Documents 2021 Research re: ordinary course motion. B170 NJS 1.10 255.00 22021 Research agent for service of process on B110 KAH 0.40 150.00 related entity. 2021 emails and analysis regarding Bylaws and B150 WSR 0.40 445.00 1other committee formation / confidentiality

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2021 Preparation of or for weekly Committee B150 PDS 2.10 455.00 9presentation and meeting. 2021 review of, and comments and revisions to, B230 PDS 2.30 455.00 1,0cash collateral opposition and order to propose to Debtors and Lenders. 2021 teleconference with M. Bishop re case. B150 PDS 0.50 455.00 22021 Continue redlining cash collateral order for B230 BAB 2.70 445.00 1,2circulation 2021 Revise objection to cash collateral motion B230 BAB 2.40 445.00 1,02021 Prepare for and participate in telephone B230 BAB 0.80 445.00 3conference with counsel for TPIC re: cash collateral motion 2021 Continued review of Prepetition Loan B120 KS 1.50 245.00 3Documents 2021 Continued review of Prepetition Loan B120 KS 2.50 245.00 6Documents 2021 Research re: motions (N/C) B170 NJS 0.00 255.00 2021 review and revise Bylaws B150 WSR 0.90 445.00 4 2021 Attend and conduct committee meeting. B150 PDS 0.60 455.00 22021 Communication with re an B320 PDS 0.40 455.00 1 alternate transaction. 2021 Communication with M. Okin and M. Warren B230 PDS 0.30 455.00 1re proposed cash collateral order. 2021 review of, and comments and revisions to, B160 PDS 0.20 455.00 Committee's proposed response to Schooner motion. 2021 Review of, and comments and revisions to, B230 PDS 2.40 455.00 1,0cash collateral response and proposed order received from Debtor and Lenders. 2021 Review/revise subpoenas directed to Board B190 BWA 1.00 365.00 3Members 2021 Email to process server re:multiple B120 KAH 0.20 150.00 subpoenas 2021 Additional research of lenders; agents for B120 KAH 0.70 150.00 1service. 2021 Research multiple entities and agents for B120 KAH 3.50 150.00 5service of process for subpoenas; prepare subpoenas. 2021 Revise committee presentation powerpoint B150 BAB 1.40 445.00 6(0.6); Prepare for and participate in weekly committee meeting (0.8)

36

with local counsel re: objection requirements, local rules regarding same relating to cash collateral objection (0.8); further revisions to objection to cash collateral (1.5); further revisions to proposed final cash collateral order (0.8); emails with debtors' counsel re: debtors and lender proposed revisions, review and analyze same (0.5) 2021 Review and revise proposed subpoena B190 BAB 4.00 445.00 1,7requests to various parties re: investigation of debtors' affairs (1.1); analyze issues with (0.8); draft response to Schooner motion, review and analyze Schooner agreement, and proposed order (1.2); receipt and review of Debtor's motion to settle with Island Operating, emails with debtors' counsel re: need for discussion surrounding same (0.9) 2021 Analyze research relating to B170 BAB 0.60 445.00 22021 Communication with M. Okin re discovery B320 PDS 2.00 455.00 9(.2); revise subpoena exhibit to board members (1.8). 2021 Continued efforts revising subpoena exhibits B320 PDS 2.30 455.00 1,0and oversight of subpoenas and service of same. 2021 review and analyze lien issues B120 WSR 1.50 445.00 62021 Preparation for unsecured creditor committee B150 NJS 0.00 255.00 meeting (N/C) 2021 Communicate (other external) unsecured B150 NJS 0.00 255.00 creditor committee meeting (N/C) 2021 Research pertaining to the debtor's B170 NJS 0.00 255.00 2021 Review/analyze application to employ Claro B170 NJS 0.20 255.00 Group. 2021 review of, and comments and revisions to, B230 PDS 4.10 455.00 1,8cash collateral opposition and related witness and exhibit list and review of witness and exhibit lists of other parties and proposed order filed by Debtors. 2021 review of, and comments and revisions to, B320 PDS 1.20 455.00 5potential alternate transaction. 2021 Emails with E. Terry re: witness and exhibit B230 BAB 4.10 445.00 1,8list for upcoming hearings, review drafts of same (0.5); final revisions to objection to CC motion, CC order, finalize and file same (1.9); receipt and review of objection to CC motion by CEI, TPIC (1.2); receipt and review of witness and exhibit lists filed by objectors and

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conference with D. Curry re: stipulations filed by and to be filed by debtors resolving various preference claims and critical vendor issues (1.1); multiple emails with counsel relating to continuance of Island Operating motion (0.3); telephone conference with local counsel re: procedures for expediting hearings on preference stipulations, other issues (0.5) 2021 Review and revise discovery requests for B190 BAB 1.60 445.00 7subpoena template to various parties for information relating to debtors prepetition operations and transactions 2021 Finalize Objection to Cash Collateral Motion B230 KAH 0.20 150.00 2021 Finalize Response to Schooner Agreement B190 KAH 0.20 150.00 Motion. 2021 Revised subpoena exhibits for B320 PDS 3.70 455.00 1,6 and other persons. 2021 review and finalize UCC Bylaws; forward B110 WSR 0.90 445.00 4same to Committee 2021 Prepare for and attend compromise B230 PDS 2.10 455.00 9negotiations with Debtors' counsel re cash collateral order. 2021 Analysis of cash collateral issues and related B230 PDS 1.10 455.00 5communication with D. Curry. 2021 Revisions to exhibit to Intrepid Partners B120 KAH 0.40 150.00 subpoena; additional research regarding proper agent for service of process. 2021 Arrange for service of subpoena on Intrepid B120 KAH 0.20 150.00 Partners. 2021 Emails with D. Curry re: discussion of CC B230 BAB 5.40 445.00 2,4motion (0.2); prepare item list in furtherance of discussion, ranking issues and edits required by Committee (1.2); telephone conference with D. Curry, M. Okin re: cash collateral order (0.8); analyze issues raised by same, possible resolution of objections post-conference, and email to D. Curry re: CC order (0.7); review and analyze revisions to CC order proposed by debtors counsel, further redline revisions to same (1.8); email to debtors' counsel re: revisions, reasons for same (0.4); review notice of final budget, analyze same (0.3). 2021 Receipt and review of motions to B180 BAB 1.00 445.00 4compromise with RLC, Stone, analyze same 2021 Research on confirmation issues B320 KS 1.20 245.00 22021 Continued review of Prepetition Loan B120 WSR 1.60 445.00 7Documents

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Knight. 2021 Analysis of dates relating to disclosure B230 PDS 0.80 455.00 3statement, confirmation hearing, challenge period, and discovery returns in preparation of or for hearing on cash collateral motion and negotiation of hearing dates for conditional approval of disclosure statement. 2021 Preparation of report on cash collateral B150 PDS 1.80 455.00 8negotiations for Committee. 2021 Emails with local counsel re: status of CC B230 BAB 0.70 445.00 3order (0.2); review and revise draft of committee report (0.5). 2021 Analysis of potential challenge claims B120 PDS 1.80 455.00 82021 Continue drafting application to employ B160 BWA 1.50 365.00 5SRBA, including related affidavits 2021 Multiple communications with M. Okin and M. B230 PDS 0.50 455.00 2Warren re cash collateral order and settlement. 2021 Emails with debtors' counsel re: revised CC B230 BAB 3.50 445.00 1,5order, conference to discuss issues (0.2); review and analyze CC order revisions (1.1); prepare for and participate in telephone conference with debtors', lenders' counsel re: same and post-conference analysis of debtors' situation and strategy moving forward (1.8); review revised committee report (0.4). 2021 Initial review and analysis of employment B160 BAB 0.60 445.00 2application as counsel for committee 2021 Receipt/review Service Return of Subpoena B190 KAH 0.20 150.00 to Intrepid Partners; update tracking spreadsheet. 2021 Draft/Revise SRBA employment application. B160 KS 1.20 245.00 22021 Preparation of or for cash collateral hearing; B230 PDS 4.60 455.00 2,0multiple communications with M. Okin, L. Phillips., M. Warren, and M. Bishop re cash collateral hearing and other scheduling issues. 2021 communication with Committee re cash B150 PDS 0.60 455.00 2collateral and upcoming meeting. 2021 review and analyze perfection issues as to B120 WSR 3.00 445.00 1,3Apache Judgment; review and analyze perfection issues as to stock; review security agreements 2021 Review and analyze Lenders' response to B230 BAB 2.60 445.00 1,1objections to CC motion (1.4); conference with counsel for CEI re: CC motion, CEI objection to same (0.5); email from Lender counsel re: continuance, issues with same, proposed limited continuance, analyze issues

39

analysis of conflicts report for same 2021 Review Debtor's proposed agenda for B190 BAB 0.40 445.00 1hearings today, analyze hearing needs for same. 2021 Research on UCC security interest issue. B120 KS 1.40 245.00 32021 Research re: chapter 11 confirmation issue. B320 KS 1.70 245.00 42021 Attend hearing on cash collateral and other B230 PDS 1.80 455.00 8matters, analysis of proposed changes to operations via shutting in certain interests in. 2021 Drafted report to Committee on potential FA B150 PDS 1.30 455.00 5selection. 2021 Analysis of disclosure statement needs and B320 PDS 0.60 455.00 2anticipated discovery to Debtors and their FA's. 2021 Email from process server; confirm service B190 KAH 0.20 150.00 address. 2021 Revisions to subpoenas for board members B320 PDS 7.10 455.00 3,2and lenders (1.1); Detailed review of schedules and statements and Plan/DS (3.6) and draft/revise Rule 34 production requests to Debtors (2.4). 2021 Research on confirmation issues. B320 KS 1.20 245.00 22021 Analyzing Apache judgment security interest B120 WSR 3.80 445.00 1,6(.5); analyzing perfection and security interest in Talos stock (1.8); review Disclosure Statement and underlying transactions (1.5) 2021 Review and revise subpoena requests to B320 BAB 1.90 445.00 8board members and Cap One (0.8); review and revise RFP to Debtors (1.1) 2021 attention to docket entries regarding hearings B110 KAH 0.20 150.00 held 3-29 and continued. 2021 Conducted Committee meeting and multiple B150 PDS 2.50 455.00 1,1communications with potential FA's and Committee. 2021 Continue review of DS in preparation for list B320 BAB 5.30 445.00 2,3of items for further disclosure, analyze further disclosure needs in light of plan structure 2021 Prepare for and participate in telephone B150 BAB 0.70 445.00 3conference with committee 2021 Communicate (other external) unsecured B150 NJS 0.00 255.00 creditors meeting (N/C). 2021 Revisions to First Discovery to Debtors and B120 PDS 2.80 455.00 1,2related communications with M. Okin. 2021 Continued review of Prepetition Loan B120 KS 2.30 245.00 5Documents Total 258.40 $104,0

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FEE EARNER SUMMARY Fee Earner Hours Effective Rate Amount BAB Brandon A. Brown 91.00 445.00 40,495.00 BWA Brooke W. Altazan 4.80 365.00 1,752.00 KAH Kimberly A. Heard 9.00 150.00 1,350.00 KS Karina Shareen 42.00 245.00 10,290.00 NJS Nicholas J. Smeltz 1.90 255.00 484.50 PDS Paul Douglas Stewart, Jr. 87.50 455.00 39,812.50 WSR William S. Robbins 22.20 445.00 9,879.00 TASK SUMMARY Task Hours Effective Rate A B110 Case Administration 5.70 341.84 1,9 B120 Asset Analysis and Recovery 70.70 322.65 22,8 B140 Relief from Stay/Adequate Protection Proceedings 0.60 445.00 2B150 Meetings of and Communications with Creditors 17.40 451.90 7,8B160 Fee/Employment Applications 14.20 409.86 5,8 B170 Fee/Employment Objections 1.90 315.00 5 B180 Avoidance Action Analysis 2.90 445.00 1,2 B190 Other Contested Matters(excluding assumptions/reje 10.00 419.60 4,1B230 Financing/Cash Collections 84.30 445.71 37,5 B260 Board of Directors Matters 2.10 245.00 5 B320 Plan and Disclosure Statement (Including Business 48.60 435.80 21,1New Charges $104,0 Balance Due $104,0

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UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION In re Chapter 11 CASTEX ENERGY 2005 HOLDCO, LLC, Case No. 21-30710 (MI) et al.1 Debtors. (Jointly Administered) SECOND MONTHLY STATEMENT OF SERVICES RENDERED AND EXPENSES INCURRED FOR THE PERIOD APRIL 1, 2021 THROUGH APRIL 30, 2021 BY STEWART ROBBINS BROWN & ALTAZAN, LLC AS COUNSEL TO THE OFFICIAL COMMITTEE OF UNSECURED CREDITORS Stewart Robbins Brown & Altazan (“SRBA”)2, counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLC, et al. (the “Committee”), hereby submits this Second Monthly Fee Statement for Services Rendered and Expenses Incurred (the “Monthly Fee Statement”) for the period April 1, 2021 through April 30, 2021 (the “Statement Period”), in accordance with the Court’s order dated April 13, 2021, establishing interim compensation procedures for this case (the “Compensation Order”) [Docket No. 181]. In support of the Monthly Fee Statement, SRBA respectfully represents as follows: [Statement continued on following page.] 1The Debtors in these chapter 11 cases, along with the last four digits of each Debtor’s federal tax identification number, as applicable, are: Castex Energy 2005 Holdco, LLC (6832); Castex Energy 2005, LLC (6832); Castex Energy Partners, LLC (6832); and Castex Offshore, Inc. (8432). The Debtors’ mailing address is: One Memorial City Plaza, 800 Gessner Rd., Suite 925, Houston, TX 77024. 2 Capitalized terms used but not otherwise defined herein shall have the meanings ascribed to them in the Compensation Order.

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Relief Requested 1. SRBA respectfully submits this Monthly Fee Statement for (i) compensation of fees for reasonable, actual and necessary services rendered by SRBA on behalf of the Committee during the Statement Period; and (ii) reimbursement of reasonable, actual and necessary expenses incurred by SRBA on behalf of the Committee during the Statement Period. 2. SRBA seeks compensation for processional services rendered and reimbursement of expenses incurred during the Statement Period in the amounts set forth as below: Total Fees: $90,808.00 (80% of $113,510.00) Total Expenses: $5,072.22 Total: $95,880.22 3. SRBA’s invoice covering the Statement Period and providing a detailed statement of hours spent rendering legal services and to the Committee and detailed list of disbursements made or incurred by SRBA in connection with services performed on behalf of the Committee during the Statement Period is attached hereto as Exhibit “A”. 4. Pursuant to the Compensation Order, SRBA seeks payment of $90,808 from the Debtors for the Statement Period, representing (a) 80% of SRBA’s total fees for services rendered and (b) 100% of the total expenses incurred during the Statement Period. Notice 5. In accordance with the Compensation Order, notice of this Monthly Fee Statement has been served upon the following parties (collectively, as further defined in the Compensation Order, the “Fee Parties”): (i) the Debtors’ Chief Restructuring Officer, Attn: Douglas J. Brickley (dbrickley@theclarogroup.com); (ii) counsel for the Debtors, Attn: Matthew S. Okin (mokin@okinadams.com), David L. Curry, Jr. (dcurry@okinadams.com), and Ryan A. O’Connor

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(roconnor@okinadams.com); (iii) the Office of the United States Trustee for the Southern District of Texas, Attn: Ha Nguyen (ha.nguyen@usdoj.gov); (iv) counsel to Capital One, NA, as Prepetition Agent under the Prepetition Credit Agreement, Attn: Matthew Warren, Esq. (mwarren@kslaw.com); and (v) counsel to the Committee, Attn: Paul Douglas Stewart (dstewart@stewartrobbins.com) and Tom A. Howley (tom@howleylaw.com). Dated: May 15, 2021 Baton Rouge, Louisiana STEWART ROBBINS BROWN & ALTAZAN, LLC By: /s/ P. Douglas Stewart, Jr. Paul D. Stewart (LA. Bar # 24661, admitted SDTX) William S. Robbins (TX Bar # 24100894) Brandon A. Brown (TX Bar # 24104237) Brooke W. Altazan (TX Bar # 24101002) Baton Rouge, LA 70801-0016 Telephone: (225) 231-9998 Facsimile: (225) 709-9467 dstewart@stewartrobbins.com wrobbins@stewartrobbins.com bbrown@stewartrobbins.com baltazan@stewartrobbins.com Counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, L.L.C.

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CASTEX ENERGY 2005 HOLDCO, LLC, ET AL. EXHIBIT A DETAILED TIME AND EXPENSE ENTRIES APRIL 1, 2021 – APRIL 30, 2021

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301 Main Street, Suit Baton Rouge, LA 7 225-231-9998 y Gibilterra May 5, File #: 63 Invoice #: Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLCDESCRIPTION Task LAWYER HOURS Rate AM 021 Final revisions to first discovery to Debtors B120 PDS 1.10 455.00 5and related communications with M. Okin re discovery issues. 021 review of, and comments and revisions to, B230 PDS 3.60 455.00 1,6counterproposal on use of cash collateral and related communications with Committee, Seaport and M. Okin. 021 communications with Committee and B150 PDS 0.60 455.00 2creditors re cash collateral issues. 021 review of, and comments and revisions to, B160 PDS 0.80 455.00 3SRBA application for employment. 021 Communication with M. Bishop and L. B230 PDS 0.70 455.00 3Phillips re cash collateral issues. 021 Further revisions to draft of final cash B230 BAB 4.50 445.00 2,0collateral order, analyze effect of certain adequate protection, challenge provisions (1.8); review and analyze comments from other counsel re: same (0.4); Emails with Debtors' counsel re: budget, review revised budget and analyze same (1.3); emails from debtors counsel re: revised budget, review and analyze same (1.0) 021 Continue reviewing Disclosure Statement B320 BAB 1.40 445.00 6and plan and continue drafting notes of items for discussion with debtors and/or objection to same 021 Further review and revisions to SRBA fee B160 BAB 0.70 445.00 3app 021 Preparation of or for Committee call and B150 PDS 2.70 455.00 1,2conduct of same; re: FA selection and related communication with Committee and potential FA's. 021 Review/analyze Application to Employ Claro B160 NJS 0.50 255.00 1021 Attention to Committee FA selection (0.5); B150 BAB 1.60 445.00 7prepare for and participate in conference call with Seaport re: cash collateral motion,

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perfection issues 021 Meeting with Debtors' counsel re cash B230 PDS 3.10 455.00 1,4collateral order and related communications with Committee, L. Phillips and M. Bishop. 021 Review various settlement motions with B180 BAB 1.20 445.00 5proposed critical vendors (0.5); draft response to same, circulate (0.7) 021 Prepare for and participate in telephone B230 BAB 2.10 445.00 9conference with Debtors' counsel re: cash collateral motion and order issues, other operational and global case issues (1.4); analyze issues raised by debtors' counsel during call (0.7) 021 Review and analysis of CEI supplemental B230 BAB 0.50 445.00 2objection to CC motion 021 Emails with committee members re: revised B230 BAB 0.70 445.00 3cash collateral order (0.2); emails with D. Curry re: revised budget, revised order, review and analyze same (0.5). 021 Analysis of Prepetition Security Agreements B180 KS 0.50 245.00 1021 Attention to Thompson Knight subpoena; B120 KAH 0.20 150.00 email regarding same. 021 Teleconference with D. Curry, M. Okin, L. B230 PDS 1.50 455.00 6Phillips and M. Bishop re cash collateral hearing and review of additional language for order. 021 Analysis of categories of potential recovery in B120 PDS 2.90 455.00 1,3anticipation of discussions with T. Howley, T. Thompson and M. Schmidt re case strategy and calls with same. 021 Communications with OUST re ex officio B150 PDS 0.20 455.00 membership of TPIC. 021 Attend meeting of creditors and discussions B150 PDS 1.40 455.00 6with creditors thereafter. 021 Call with T. Thompson and M. Schmidt re B120 PDS 0.50 455.00 2case. 021 Prepare for and attend hearing on cash B230 PDS 1.40 455.00 6collateral order and related communication with Committee afterwards. 021 Begin drafting objection to Disclosure B320 BAB 6.80 445.00 3,0Statement approval 021 Analyze need for further disclosure in SRBA B160 BAB 0.40 445.00 1employment application 021 Receipt and review of orders entered upon B180 BAB 0.30 445.00 1stipulations resoving Archrock, RLC, Stone actions 021 Receipt and review of final order entered on B230 BAB 0.40 445.00 1cash collateral motion, match with pre-

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and Castex entities 021 Communication with Committee Members re: B110 KAH 0.20 150.00 Committee Meeting 021 Review of, and comments and revisions to, B160 PDS 1.80 455.00 8March 2021 invoice for services rendered to the Committee (1.1) and analysis of claims by/against the Archdiocese of New Orleans in order to revise statement in application for employment and related communication with Committee (.7). 021 Communication with Seaport and Debtors' B120 PDS 0.20 455.00 counsel re Seaport diligence list and informal production. 021 Prepare for and participate in telephone B320 BAB 0.50 445.00 2conference with local counsel and committee FA re: plan issues, strategy 021 Attention to first fee statement/billing B160 KAH 1.60 150.00 2revisions. 021 Strategy meeting with counsel and Seaport B120 PDS 0.00 455.00 teams to coordinate efforts in these Chapter 11 cases. (NC) 021 Conference call with CEI and Seaport re: CEI B190 PDS 1.10 455.00 5settlement proposal 021 Prepare for and participate in telephone B320 BAB 0.00 445.00 conference with FA and CEI re: plan issues, information on debtor's properties, P&A obligations of other WI owners, other issues. (NC) 021 Continue preparing objection to Disclosure B320 BAB 6.20 445.00 2,7Statement 021 attend strategy / work allocation meeting; B110 WSR 1.30 445.00 5analysis of pledge / escrow agreement issues as relating to stock pledge 021 Finalize SRBA Employment Application and B160 KAH 0.70 150.00 1exhibits; emails related to same. 021 review of, and comments and revisions to, B320 PDS 2.10 455.00 9Disclosure Statement Objection. 021 Revise objection to DS (1.7); emails to local B320 BAB 2.80 445.00 1,2counsel circulating same for comments (0.1); review and analysis of objection by Energy Transfer creditors, potential need to revise objection in light of same (1.0) 021 Emails with Local and FA groups re: cost B160 BAB 0.30 445.00 1controls on committee professionals, review proposed budgets for same 021 Final review of SRBA employment application B160 BAB 0.40 445.00 1021 Review and analyze draft objections by other B320 BAB 0.80 445.00 3creditors to Disclosure Statement, analyze need to adopt or update Committee draft

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liens against escrowed Talos Shares 021 continued analysis of escrow / pledge issues B310 WSR 0.80 445.00 3and effect on security interest 021 Revise/finalize Application to Employ SRBA B160 KAH 0.30 150.00 021 Revised subpoena exhibits for Lenders and B120 PDS 1.50 455.00 6Board Members. 021 review of, and comments and revisions to, B320 PDS 1.90 455.00 8revised DS objection and related communication with Debtors' counsel and several creditors. 021 Communication with TPIC re ex officio seat B150 PDS 0.40 455.00 1on committee. 021 Attention to FA application and related B160 PDS 0.40 455.00 1communication with T. Thompson. 021 Call with Seaport re diligence materials and B120 PDS 0.40 455.00 1potential alternative transaction. 021 Multiple revisions to multiple subpoena B120 KAH 3.60 150.00 5exhibits; research proper agents for service; coordinate process server. 021 Review comments from local counsel on B320 BAB 1.60 445.00 7objection to DS (0.3); further revisions to objection to DS (1.3) 021 Analyze needs for preparation of Seaport B160 BAB 0.40 445.00 1Global employment application, task list for same 021 Further analysis of issues with lender security B120 BAB 0.90 445.00 4interest in Escrowed Talos Shares, mortgage releases, effect of same 021 Communication with L. Phillips and T. B190 PDS 0.80 455.00 3Thompson re CEI settlement proposal. 021 Final review and execution of board and B120 PDS 0.50 455.00 2certain lender subpoenas and related communication with Debtor and Lenders' counsel. 021 Communication with L. Phillips re CEI B190 PDS 0.30 455.00 1proposal. 021 Updated security interest analysis re: B180 KS 1.30 245.00 3prepetition security agreements 021 Drafting employment application to retain B160 KS 0.00 245.00 Seaport Global Securities as financial advisor (NC) 021 Conference with L. Phillips re: possible B190 BAB 0.50 445.00 2structure for resolution of issues, emails with same and debtor's counsel re: authority to make proposal 021 Revise subpoena exhibit to various lender B120 BAB 0.40 445.00 1entities

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perfection issues (2.4); analysis of Talos transaction and issues surrounding associated releases (2.0); review exit loan documents (1.5) 021 Telephone call and emails to/from court re: B120 KAH 0.30 150.00 filing of subpoena returns in record. 021 Finalize Objection to DS B320 KAH 0.20 150.00 021 Attention to service of subpoenas. B120 KAH 0.20 150.00 021 Finalize additional subpoenas; arrange for B120 KAH 1.10 150.00 1service; update tracking information/status of service. 021 review and analysis of multiple objections to B320 PDS 1.20 455.00 5Debtors' disclosure statement and related communications with M. Okin. 021 Preparation of or for upcoming committee B150 PDS 1.40 455.00 6meeting. 021 Finalize correspondence to subpoena parties B120 KAH 0.50 150.00 re: debtor to answer 021 Receive/review multiple emails regarding B120 KAH 0.50 150.00 subpoeans and service returns related to same. 021 Draft/Revise application to employ Seaport B160 KS 3.30 245.00 8as financial advisor to the Committee 021 Review and analyze multiple objections to B320 BAB 1.90 445.00 8DS filed by other parties in interest (CEI, TPIC, RLI, USPIC) (1.8); emails with debtor's counsel re: continuance of DS hearing (0.1) 021 Review and analyze Debtor's motion to B320 BAB 0.20 445.00 continue hearing on DS 021 Revise application to employ Seaport B160 BAB 0.70 445.00 3021 review and analysis of CEI's proposed term B190 PDS 1.90 455.00 8sheet to the Debtors, Lenders and Committee and related communication with T. Thompson re value of terms. 021 Updated security interest analysis to include B180 KS 1.00 245.00 2Texas UCC search results 021 Review and analyze proposed settlement B190 BAB 1.60 445.00 7offer from CEI to Debtors, analyze ultimate effect on plan confirmability, effects on creditor base, debtor's asset base, other issues, review Seaport initial review of proposal and analyze same 021 review subpoena and correspondence from B110 WSR 1.00 445.00 4Debtor counsel regarding same (.5); prepare letter agreement regarding response to subpoenas (.5)

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analyzing stock / proceeds and related collateral perfection issues (1.0); review transaction documents as to exist and Talos sale (1.0) 2021 Multiple emails/receipt of service returns for B120 KAH 1.20 150.00 1subpeonas; update tracking spreadsheet; attention to subpoenas with service issues/outstanding service 2021 Prepare Notice of Service of Third Party B120 KAH 0.60 150.00 Subpoenas 2021 Communication with M. Warren re Lender B120 PDS 0.40 455.00 1subpoenas. 2021 analysis of indemnity provision for Seaport B160 PDS 0.40 455.00 1application. 2021 Revised motion to employ financial advisor B160 KS 0.20 245.00 application to update exhibits 2021 Revise Seaport employment application B160 BAB 1.00 445.00 4(0.8); emails with T. Thompson re: indemnity issues and need to clarify (0.2) 2021 Analyze status of CEI proposal to Debtors re: B190 BAB 0.70 445.00 3settlement of certain issues, further informational needs to advise committee on same 2021 Receipt and review of certificates of no B190 BAB 0.10 445.00 objection on procedures, ordinary course professionals 2021 Teleconference with M. Okin re CEI proposal B190 PDS 1.30 455.00 5(.5); communication with M. Okin and L. Phillips re same (.3). 2021 Conference call with counsel for lender re: B120 BAB 0.60 445.00 2outstanding discovery, streamlining same (0.4); analyze discovery issues raised by same post-call (0.2) 2021 Communication with Lenders' counsel re B120 PDS 0.30 455.00 1subpoenas. 2021 Preparation of materials for upcoming B150 PDS 1.70 455.00 7Committee meeting. 2021 Conducted Committee meeting. B150 PDS 0.80 455.00 32021 Review and analysis of K&S fee statement, B170 BAB 0.50 445.00 2analyze same 2021 Receipt and review of interim compensation B160 BAB 0.10 445.00 procedures order 2021 Receipt and review of order authorizing B170 BAB 0.10 445.00 employment of ordinary course professionals 2021 Prepare for and participate in committee B150 BAB 1.00 445.00 4meeting, review and analysis of summary provided to same

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requested by BSEE/BOEM, review and analyze same and debtor's proposed revision to DS 2021 Analyze status of committee by-laws, B150 BAB 0.30 445.00 1inclusion of ex officio member, outstanding needs for same 2021 Multiple emails with debtors', CEI's counsel B190 BAB 0.50 445.00 2re: meeting with committee to discuss potential settlement of issues between parties, extension requests on injunction 2021 Receipt/review service returns on B120 KAH 0.30 150.00 subpoenas; update tracking chart. 2021 Initial review of Lenders' March fees. (NC) B160 PDS 0.00 455.00 2021 Multiple communications with parties re B150 PDS 1.30 455.00 5Debtors' operations. 2021 Multiple communications with M. Okin and L. B190 PDS 0.50 455.00 2Phillips re Castex - CEI settlement discussions and meeting. 2021 Multiple communications with Debtors and B190 PDS 0.60 455.00 2CEI re settlement meeting and parameters thereof. 2021 Multiple communications with creditors and B150 PDS 1.70 455.00 7Seaport re regulatory issues arising from Debtors' management of O&G properties. 2021 Review perfection issues and meeting B130 WSR 0.30 445.00 1materials. 2021 attend UCC meeting (.6); email regarding Ex B150 WSR 1.80 445.00 8Officio membership (.3); drafting acknowledgment and forward same to counsel for Ex Officio member (.6); email to UCC regarding execution of Bylaws (.3) 2021 Communications with M. Okin and D. Curry B320 PDS 0.50 455.00 2re disclosure statement issues and related order and dates. 2021 Analysis of amended plan and disclosure B320 PDS 1.70 455.00 7statement, and proposed order conditionally approving same. 2021 Finalized SRBA March 2021 invoice, Monthly B160 PDS 1.00 455.00 4Fee Statement, and related communication with T. Howley and Seaport re approach. 2021 Prepare for and participate in telephone B320 BAB 1.30 445.00 5conference with debtors' counsel re: DS amendments, other issues

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conference with committee FA re: issues and analysis needed to evaluate proposed compromise between CEI and debtors, analysis needed from FA on properties, other issues (0.7); analyze correspondence on shut-in issues relating to debtors' offshore operations, analyze potential affect on estate, possible needs to remedy same (0.8) 2021 Emails with M. Bishop re: ex officio issues B150 BAB 0.20 445.00 with TPIC 2021 Email from D. Curry re: revised plan and DS, B320 BAB 1.00 445.00 4review and analyze redline revisions to same, need for further information 2021 Communications with Seaport, M. Okin, and B210 PDS 1.10 455.00 5D. Curry regarding Debtors' operations. 2021 Review and analyze issues relating to B210 BAB 0.80 445.00 3Debtors' operations. 2021 Email to/from ex officio member regarding B110 WSR 0.60 445.00 2Acknowledgement and regarding related consent / notice issues (.3); receive/review acknowledgment (.3) 2021 Review and analyze issues surrounding B130 BAB 0.80 445.00 3perfection of lien on escrowed Talos shares 2021 review and analyze Capital One documents B180 WSR 4.50 445.00 2,0and UCC documents relating to Capital One liens (1.5); review additional Talos documents, including pledge agreement (1.0); analyze UCC and other lien issues related to same (2.5) 2021 Receipt/review UCC search results on two B120 KAH 0.20 150.00 Castex entities. 2021 Communications with multiple creditors and B320 PDS 0.80 455.00 3reps re disclosure statement hearing. 2021 review of amended Plan and DS and related B320 PDS 1.90 455.00 8communication with Committee and Debtor's counsel. 2021 Review and draft summary analysis B320 BAB 2.60 445.00 1,1comparing redlined Plan and DS to requests for additional information in UCC Objection to DS 2021 Analyze revised draft of proposed Order B320 BAB 0.30 445.00 1conditionally approving DS 2021 Emails with Debtor's counsel re: confirmation B320 BAB 0.60 445.00 2hearing dates, review and revise proposed order conditionally approving DS 2021 Review and revise notice of SRBA fees for B160 BAB 0.40 445.00 1March pursuant to fee procedures order 2021 Communication with M. Maloney re Lenders' B120 PDS 0.70 455.00 3subpoenas (.1); communication with E.

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statement issues (.6); communication with T. Thompson re CEI settlement analysis and disclosure statement issues (.2). 2021 Receipt/review additional UCC searches B180 KAH 0.30 150.00 2021 Review and analyze proposed protective B120 BAB 0.90 445.00 4order 2021 continued review and analysis of escrowed B120 WSR 3.20 445.00 1,4shares / security and perfection issues (1.7); receive and analyze Talos sale documents, with focus on indemnification (1.5) 2021 Research re: confirmation issues relating to B320 NJS 4.30 255.00 1,0insiders. 2021 Research additional addresses for services B120 KAH 0.80 150.00 1for outstanding subpoenas. 2021 Analysis of changes to plan and disclosures B320 PDS 1.60 455.00 7statement in preparation of or for disclosure statement hearing, related communications with D. Curry, M. Bishop and L. Phillips, and attendance at Disclosure Statement hearing. 2021 Communication with M. Yan re subpoena for B120 PDS 0.10 455.00 OCM. 2021 Communications with E. Clarkson, T. Howley B320 PDS 0.40 455.00 1and M. Bishop re discovery priorities and other discovery related issues. 2021 Emails with local counsel re: issues with B190 BAB 0.80 445.00 3proposed protective order on document production (0.2); review proposed revisions to same (0.2); emails with team re: high priority production list to be sent to debtors, analyze same (0.4). 2021 Research on regulatory issues and Debtors' B230 KS 1.50 245.00 3operations. 2021 Communications with T. Thompson and M. B230 PDS 0.70 455.00 3Schmidt re FA meeting re regulatory issues. 2021 Analysis of regulatory matters relating to B230 PDS 0.90 455.00 4offshore oil and gas properties. 2021 Research re: confirmation issues relating to B320 NJS 5.70 255.00 1,4insiders. 2021 review and analyze Talos sale agreement, B120 WSR 2.40 445.00 1,0specifically indemnity and escrow issues 2021 Communication with D. Curry re B120 PDS 0.30 455.00 1communications with potential witness. 2021 Receipt of correspondence from CT re: not B120 KAH 0.80 150.00 1agent for Citibank; research new agent for service. 2021 Settlement discussions with CEI's counsel L. B190 PDS 0.90 455.00 4Phillips and Seaport. 2021 Analysis of amended plan and formulation of B320 PDS 2.80 455.00 1,2

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March fees and expenses, as well as carveout budget between professionals. 2021 Communication with Committee re upcoming B150 PDS 0.30 455.00 1meeting. 2021 Receipt and detailed review of Okin Adams B160 PDS 0.40 455.00 1March fee statement. 2021 Revise and circulate Seaport app, review B160 BAB 0.40 445.00 1comments from same 2021 Continued research on regulatory issues re: B230 KS 5.00 245.00 1,2Debtors' operations. 2021 Review UCC search resutls re: Castex B180 KAH 0.50 150.00 Energy Partners; and Capital One documents for underlying UCC's. 2021 Analysis of Seaport engagement agreement B160 PDS 0.00 455.00 and application for employment. (NC) 2021 Continue research re: confirmation issues B320 NJS 5.90 255.00 1,5regarding insiders 2021 Analysis of overdue subpoena return from B120 PDS 0.70 455.00 3Intrepid and related communications with Seaport. 2021 Review and analysis of service on Intrepid, B120 BWA 2.50 365.00 9communication with T. Thompson and M. Schmidt re: same 2021 Attention to Intrepid documents produced by B120 KAH 0.20 150.00 Debtor; electronic organization. 2021 Review of materials provided by L. Phillips re B190 PDS 2.00 455.00 9Castex settlement. 2021 Analysis of D&O claims as pertaining to CEI- B120 PDS 2.80 455.00 1,2related D' & O's, as well as Debtor-side D's & O's. 2021 review and review of Debtors' proposed B190 PDS 2.30 455.00 1,0pleadings regarding CEI and related settlement communications with L. Phillips and M. Okin. 2021 Review UCC documents produced by Capital B180 KAH 0.30 150.00 One; emails related to same. 2021 Communication with M. Schmidt re Intrepid B120 PDS 0.20 455.00 subpoena. 2021 Continued research on regulatory issues re: B230 KS 3.50 245.00 8Debtors' operations. 2021 Analysis of Escrowed Talos Shares summary. B180 PDS 0.40 455.00 12021 Continue research re: confirmation issues B320 NJS 3.10 255.00 7regarding insiders.

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Talos PSA / Indemnity (1.5); prepare and revise report (1.5) follow up emails and analysis regarding (1.0); email to debtor’s counsel regarding R&W Insurance (.3); emails to/from bank counsel regarding UCC issues and copies (.2); review UCC copies (.4) 2021 Communication with M. Schmidt, A. Miller B120 BWA 1.30 365.00 4and D. Cochran re: Intrepid productions 2021 Preparation of report to Committee. B150 PDS 0.30 455.00 12021 Multiple communications with M. Okin, L. B190 PDS 2.80 455.00 1,2Phillips, T. Thompson, and Committee re settlement issues re CEI and review of (i) counteroffer of CEI and (ii) Seaport analysis of underlying properties proposed to be transferred to CEI. 2021 Revise Seaport application B160 BAB 0.80 445.00 3 2021 Review and analyze notices of admin claims B310 BAB 0.60 445.00 2filed by Talos and CEI 2021 Call with E. Clarkson re discovery and B120 PDS 0.10 455.00 subpoena issues. 2021 Review and analyze debtor's counterproposal B190 BAB 0.00 445.00 to CEI, analyze issues with same. (NC) 2021 Review and analyze protective order, B120 BAB 0.60 445.00 2telephone conference and emails with debtors' counsel re: same 2021 review of, and comments and revisions to, B320 PDS 0.40 455.00 1incremental amended plan and disclosure statement, order conditionally approving same, and related communication with D. Curry. 2021 Review of (a) potentially preferential B190 PDS 1.90 455.00 8payments made by Debtors' to CEI in year proceeding bankruptcy and (b) liquidation analysis from prior bankruptcy relating to valuation of properties in CEI settlement proposal; multiple related communications with L. Phillips, T. Thompson, M. Schmidt and D. Cochran. 2021 review of, and multiple comments and B190 PDS 1.40 455.00 6revisions to, CEI's counteroffer, and related communications with M. Okin. 2021 Completed research re: B230 KS 2.50 245.00 6 2021 Review and analyze Debtor's proposed B320 BAB 1.40 445.00 6amendments to DS and Plan 2021 Review and analyze proposed revised Order B320 BAB 0.30 445.00 1conditionally approving disclosure statement 2021 Communicatio with R. Miller re: Intrepid B190 BWA 0.20 365.00 subpoena

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(N/C). 2021 Review outstanding subpoenas/status of B120 KAH 0.30 150.00 service; email related to same. 2021 Review of Committee report from Seaport B150 PDS 5.10 455.00 2,3and related communications with Seaport (1.4); Preparation of or for meeting with Committee to discuss CEI settlement and other issues (1.7); attended and conducted Committee meeting (1.2) and second committee meeting with Seaport re CEI report (.8). 2021 Multiple communications with D. Curry and L. B190 PDS 2.20 455.00 1,0Phillips to negotiate terms sheet. 2021 Telephone conference with C. Winchenbaugh B190 BWA 0.40 365.00 1re: Intrepid production in response to subpoena, analysis of same 2021 Review of UCC documents; preparation of B180 KAH 3.00 150.00 4spreadsheet outlining UCC's information. 2021 Communications with D. Curry and L. Phillips B190 PDS 0.40 455.00 1to negotiate terms sheet. 2021 review of, and comments and revisions to, B160 PDS 0.50 455.00 2Seaport application and SRBA fee statement for March. 2021 Multiple communications with D. Curry, M. B190 PDS 0.90 455.00 4Okin and L. Philips re CEI compromise. 2021 Review of settlement term sheet and B190 PDS 0.70 455.00 3proposed motion. 2021 Review status of outstanding B180 KAH 0.30 150.00 subpoenas/service issues; email related to same. 2021 Review and analyze settlement documents, B190 BAB 1.80 445.00 8term sheet, proposed motion re: CEI settlement (1.4); telephone conference with D. Curry re: status of CEI response (0.2); conference with L. Phillips re: same (0.2) 2021 Review Order granting application to employ B160 BAB 0.10 445.00 Thompson & Knight 2021 Final edits to Seaport app, emails with T. B160 BAB 0.50 445.00 2Thompson re: Seaport employment application (0.3); receipt of signed declaration from same, review same (0.1); emails with C. Sims re: Sims declaration (0.1) 2021 analyzing UCC issues and status of requests B120 WSR 0.80 445.00 32021 analyzing protective order issues B110 WSR 0.40 445.00 12021 Analyze issues with Lender and Debtor forms B120 BAB 0.40 445.00 1of protective order 2021 Continued review of UCC B180 KAH 2.30 150.00 3

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revisions to 9019 motion and related documents re CEI compromise and multiple communications with M. Okin, D. Curry and L. Phillips. 2021 Analysis of multiple Chapter 11 Plan issues, B320 PDS 4.50 455.00 2,0including voting, allocation, releases, and discrimination. 2021 Analysis of multiple issues relating to B120 PDS 2.40 455.00 1,0challenge claims for Lenders. 2021 email to/from debtor counsel regarding R&W B120 WSR 0.30 445.00 1insurance requests and regarding protective order issues 2021 email to committee regarding bylaws B110 WSR 0.30 445.00 1execution 2021 Attention to dueling protective order forms, B120 BAB 1.20 445.00 5check differences between two, analyze same (1.0); emails with debtors' counsel re: same (0.1); emails with lenders' counsel re: same (0.1) 2021 Coordiate electronic transfer of documents B120 KAH 0.50 150.00 produced by Intrepid in response to Subpoena. 2021 Communications with Debtors re discovery B120 PDS 0.60 455.00 2responses and methodology. 2021 Initial review of subpoena return from B120 PDS 3.00 455.00 1,3Intrepid. 2021 Review Notice of filing of approved B320 BAB 0.50 445.00 2solitication materials, review materials 2021 Emails with Debtors' and Lenders' counsel B190 BAB 0.20 445.00 re: form of protective orders 2021 Communication with C. Winchenbaugh re: B190 BWA 1.20 365.00 4Intrepid production in response to subpoena, and logistics surrounding same 2021 analyzing NDA / protective order issues from B110 WSR 0.40 445.00 1subpoena returns 2021 review of emails received from Intrepid under B120 PDS 0.30 455.00 1subpoena. 2021 Review and analyze memo and research B320 BAB 4.20 445.00 1,8relating to 1129(a)(10) and formulate argument re: same. 2021 Analysis of emails and documents received B120 PDS 3.30 455.00 1,5from Intrepid in order to construct term search for Debtor's use in prioritizing discovery responses; related communications with E.. Clarkson re search terms. 2021 Further analysis of 1129(a)(10) issues (0.5); B320 BAB 0.70 445.00 3develop action list for same (0.2)

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2021 Draft/revise motion to B320 NJS 1.80 255.00 4 2021 Call with Seaport re upcoming document B120 PDS 1.10 455.00 5review and Intrepid Documents. 2021 Review of documents produced by Intrepid in B120 PDS 2.60 455.00 1,1preparation for upcoming call with Seaport. 2021 Continue Reviewing/analyzing B320 NJS 0.70 255.00 1documentation received to assist with preparing 2021 Continue Drafting/revising B320 NJS 1.30 255.00 3 2021 Finalize Application to Employ Seaport and B160 KAH 0.60 150.00 exhibits. 2021 review and verify UCC filings B110 WSR 0.70 445.00 32021 Review revisions to Lender form of protective B190 BAB 0.30 445.00 1order, emails with K. O'Brien re: same. 2021 Prepare for and participate in telephone B190 BAB 1.40 445.00 6conference with local counsel and committee FA re: document productions, divisions of work for reviewing same, initial impressions of Intrepid production (1.0); analyze issues raised during conference (0.4) 2021 Finalize and file Seaport employment B160 BAB 0.80 445.00 3application 2021 Review and analyze proposed clawback B190 BAB 0.50 445.00 2agreement re: debtors subpoena production Total 292.00 $113,5

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FEE EARNER SUMMARY Fee Earner Hours Effective Rate Amount BAB Brandon A. Brown 74.70 445.00 33,241.50 BWA Brooke W. Altazan 5.60 365.00 2,044.00 KAH Kimberly A. Heard 21.60 150.00 3,240.00 KS Karina Shareen 19.70 245.00 4,826.50 NJS Nicholas J. Smeltz 29.60 217.09 6,426.00 PDS Paul Douglas Stewart, Jr. 107.60 455.00 48,958.00 WSR William S. Robbins 33.20 445.00 14,774.00 TASK SUMMARY Task Hours Effective Rate A B110 Case Administration 4.90 432.96 2,1 B120 Asset Analysis and Recovery 52.80 381.03 20,1 B130 Asset Disposition 1.10 445.00 4 B150 Meetings of and Communications with Creditors 22.80 452.85 10,3B160 Fee/Employment Applications 19.70 359.52 7,0 B170 Fee/Employment Objections 0.60 445.00 2 B180 Avoidance Action Analysis 22.60 324.98 7,3 B190 Other Contested Matters(excluding assumptions/reje 35.20 447.59 15,7B210 Business Operations 1.90 450.79 8 B230 Financing/Cash Collections 32.60 371.96 12,1 B310 Claims Administration and Objections 10.90 445.00 4,8 B320 Plan and Disclosure Statement (Including Business 86.90 370.24 32,1URSEMENTS Description A 2021 Texas Secretary of State database fees for entity inquiries2021 Texas Secretary of State database fees for entity inquiries2021 Texas Secretary of State database fees for entity inquiries2021 Texas Secretary of State database fees for entity inquiries2021 Texas Secretary of State database fees for entity inquiries2021 Texas Secretary of State database fees for entity inquiries2021 Conference call on March 25, 2021 2021 Uploaded files on Subpoena with Exhibit to Thompson Knight.pdf 22021 Uploaded files on Subpoena and Exhibit to Intrepid Partners, LLC.pdf 22021 Texas Secretary of State database fees for entity inquiries2021 Everlaw for March 2021 2021 TransUnion searches for March 2021 1 2021 Copies for March 2021 2 2021 Pacer for March 2021 1 021 Service of subpoena on Thompson Knight LLP 2 021 Uploaded files of subpoena to John Stoika.pdf 2 021 Uploaded files of subpoena to Richard Sherrill.pdf 2 021 Uploaded files of subpoena to David Alexander.pdf 2

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021 Uploaded files of subpoena to Citibank.pdg 1 021 Uploaded files of subpoena to OCM ENGY Holdings II CTB.pdf 1021 Uploaded files of subpoena to Lasalle Wacker.pdf 1 021 Uploaded files of subpoena to Capital One.pdf 021 Conference call on April 8, 2021 021 Uploaded files of subpoena to LJ Castex Energy Blocker.pdf 1021 Uploaded files of subpoena to BancAmerica Securities Inc.pdf 1021 Uploaded files of subpoena to Cross Ocean CTX Holdings.pdf 1021 Uploaded files of subpoena to Castex MIPCO.pdf 1 021 Uploaded files of subpoena to Cross Ocean USSS Fund I (A) DelFeeder.pdg 1021 Uploaded files of subpoena to Cetus III Castex Energy Bicker LLC.pdf 1021 Texas Secretary of State database fee for inquiry on Banc of America021 Texas Secretary of State database fees for entity inquiries021 Uploaded files of subpoena to Banc of America Securities.pdf 1021 Uploaded files of subpoena to Banc America Credit Products.pdf 1021 Uploaded files of subpoena to Iberiabank.pdf 1 2021 Service of subpoena on John Stoika 2 2021 Texas Secretary of State database fee for entity inquiry on Citibank, N.A. 2021 Copies for April 2021 8 2021 Pacer for April 2020 Total DISBURSEMENTS $5,0 New Charges $118,5 Previous Balance $104,0 Balance Due $222,6

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UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION In re Chapter 11 CASTEX ENERGY 2005 HOLDCO, LLC, Case No. 21-30710 (MI) et al.1 Debtors. (Jointly Administered) THIRD MONTHLY STATEMENT OF SERVICES RENDERED AND EXPENSES INCURRED FOR THE PERIOD MAY 1, 2021 THROUGH JUNE 7, 2021 BY STEWART ROBBINS BROWN & ALTAZAN, LLC AS COUNSEL TO THE OFFICIAL COMMITTEE OF UNSECURED CREDITORS Stewart Robbins Brown & Altazan (“SRBA”)2, proposed counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLC, et al. (the “Committee”), hereby submits this Third Monthly Fee Statement for Services Rendered and Expenses Incurred (the “Monthly Fee Statement”) for the period May 1, 2021 through June 7, 20213 (the “Statement Period”), in accordance with the Court’s order dated April 13, 2021, establishing interim compensation procedures for this case (the “Compensation Order”) [Docket No. 181]. In support of the Monthly Fee Statement, SRBA respectfully represents as follows: [Statement continued on following page.] Relief Requested 1The Debtors in these chapter 11 cases, along with the last four digits of each Debtor’s federal tax identification number, as applicable, are: Castex Energy 2005 Holdco, LLC (6832); Castex Energy 2005, LLC (6832); Castex Energy Partners, LLC (6832); and Castex Offshore, Inc. (8432). The Debtors’ mailing address is: One Memorial City Plaza, 800 Gessner Rd., Suite 925, Houston, TX 77024. 2 Capitalized terms used but not otherwise defined herein shall have the meanings ascribed to them in the Compensation Order. 3 One charge from April 19, 2021 is included as it was inadvertently left off the last statement.

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1. SRBA respectfully submits this Monthly Fee Statement for (i) compensation of fees for reasonable, actual and necessary services rendered by SRBA on behalf of the Committee during the Statement Period; and (ii) reimbursement of reasonable, actual and necessary expenses incurred by SRBA on behalf of the Committee during the Statement Period. 2. SRBA seeks compensation for processional services rendered and reimbursement of expenses incurred during the Statement Period in the amounts set forth as below: Total Fees: $131,152.80 (80% of $163,941.00) Total Expenses: $1,944.15 Total: $133,096.95 3. SRBA’s invoice covering the Statement Period and providing a detailed statement of hours spent rendering legal services and to the Committee and detailed list of disbursements made or incurred by SRBA in connection with services performed on behalf of the Committee during the Statement Period is attached hereto as Exhibit “A”. 4. Pursuant to the Compensation Order, SRBA seeks payment of $ $133,096.95 from the Debtors for the Statement Period, representing (a) 80% of SRBA’s total fees for services rendered and (b) 100% of the total expenses incurred during the Statement Period. Notice 5. In accordance with the Compensation Order, notice of this Monthly Fee Statement has been served upon the following parties (collectively, as further defined in the Compensation Order, the “Fee Parties”): (i) the Debtors’ Chief Restructuring Officer, Attn: Douglas J. Brickley (dbrickley@theclarogroup.com); (ii) counsel for the Debtors, Attn: Matthew S. Okin (mokin@okinadams.com), David L. Curry, Jr. (dcurry@okinadams.com), and Ryan A. O’Connor (roconnor@okinadams.com); (iii) the Office of the United States Trustee for the Southern District of Texas, Attn: Ha Nguyen (ha.nguyen@usdoj.gov); (iv) counsel to Capital One, NA, as

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Prepetition Agent under the Prepetition Credit Agreement, Attn: Matthew Warren, Esq. (mwarren@kslaw.com); and (v) counsel to the Committee, Attn: Paul Douglas Stewart (dstewart@stewartrobbins.com) and Tom A. Howley (tom@howleylaw.com). Dated: June 10, 2021 Baton Rouge, Louisiana STEWART ROBBINS BROWN & ALTAZAN, LLC By: /s/ P. Douglas Stewart, Jr. Paul D. Stewart (LA. Bar # 24661, admitted SDTX) William S. Robbins (TX Bar # 24100894) Brandon A. Brown (TX Bar # 24104237) Brooke W. Altazan (TX Bar # 24101002) Baton Rouge, LA 70801-0016 Telephone: (225) 231-9998 Facsimile: (225) 709-9467 dstewart@stewartrobbins.com wrobbins@stewartrobbins.com bbrown@stewartrobbins.com baltazan@stewartrobbins.com Counsel for the Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, L.L.C.

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CASTEX ENERGY 2005 HOLDCO, LLC, ET AL. EXHIBIT A DETAILED TIME AND EXPENSE ENTRIES MAY 1, 2021 – JUNE 7, 2021

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301 Main Street, Suit Baton Rouge, LA 7 225-231-9998 y Gibilterra June 10, File #: 63 Invoice #: Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLCDESCRIPTION Task LAWYER HOURS Rate AM 2021 review and analyze Talos PSA and Escrow B180 WSR 5.50 445.00 2,4release issues (4.0); review UCC filings (1.2); email regarding copies of same from Bank, Debtor and others (0.3) 021 Draft/revise and circulate to Committee B320 PDS 3.30 455.00 1,5professionals proposed plan settlement summary. 021 Communication with E. Clarkson re clawback B120 PDS 0.40 455.00 1agreement and form of production. 021 Communication with Lenders' counsel re B120 PDS 0.30 455.00 1production issues. 021 Communication with M. Schmidt re document B120 PDS 0.30 455.00 1review issues. 021 Communication with Seaport and OUST re B170 PDS 0.10 455.00 issue with application. 021 analyzing case scheduling issues and B180 WSR 0.40 445.00 1deadlines 021 Draft of Certificate of No Objection regarding B160 KS 0.40 245.00 retention and employment of SRBA as lead counsel to the official committee of unsecured creditors 021 Review and analyze proposed CEI B320 BAB 1.40 445.00 6settlement offer and terms of same 021 communication with M. Warren re Lenders' B190 PDS 0.10 455.00 questions re CEI compromise. 021 communication with K. O'Brien re Lenders' B120 PDS 0.10 455.00 production. 021 Preparation of or for upcoming committee B150 PDS 2.80 455.00 1,2meeting and presentation materials for same. 021 communications with KS and Capital One re B120 PDS 0.20 455.00 production. 021 Receipt and review of final orders on B160 BAB 0.20 445.00 employment applications for SRBA and

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re: CEI settlement, analyze UCC objections to same 021 Receipt and review of Declaration of Willkie B160 BAB 0.20 445.00 Farr re: employment by board 021 Continued review of Intrepid and Capital One B120 PDS 3.10 455.00 1,4documents and related communications with T. Thompson and M. Schmidt. 021 Conference call with counsel and FA re: B320 BAB 1.40 445.00 6proposed settlement terms, issues with same, strategy for approaching plan settlement (0.8), research re: post-DS approval creditor communications (0.6) 021 call with Committee professionals re B150 PDS 1.50 455.00 6settlement proposal (.9); follow-up communications with M. Bishop, M. Okin and D. Curry, M. Schmidt, and T. Thompson re settlement discussions (.6). 021 Continued review of documents produced by B120 NJS 1.90 255.00 4Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 021 Prepare for and conduct Committee meeting. B150 PDS 0.80 455.00 3021 Call with M. Okin and D. Curry re plan B320 PDS 0.50 455.00 2negotiations and progress. 021 review of proposed committee letter for B150 PDS 0.30 455.00 1GUC's. 021 emails regarding bylaws; attend attempted B150 WSR 0.80 445.00 3committee meeting 021 Participate in truncated committee call B150 BAB 0.30 445.00 1021 Prepare for and participate in telephone B320 BAB 2.20 445.00 9conference with debtors' counsel re: status, document production, settlement issues, Government position on P&A (0.7); analyze issues raised by debtors' counsel during call (0.6); draft and revise correspondence to unsecured creditors re: committee's recommendation on plan (0.9) 021 Analysis of upcoming deliverables for the B320 PDS 1.20 455.00 5Committee relating to plan confirmation. 021 receipt and preliminary review of B120 PDS 0.50 455.00 2supplemental discovery responses from Debtors. 021 Review and revise materials for committee B150 BAB 0.60 445.00 2call. 021 Continued review of documents produced by B120 NJS 2.60 255.00 6Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 021 Communication with E. Clarkson re discovery B120 PDS 0.30 455.00 1issues.

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021 attend Committee meeting B150 WSR 1.00 445.00 4 021 Revise committee recommendation letter, B150 BAB 2.30 445.00 1,0email to committee members re: same (0.4); correspondence with committee members and professionals re: protective orders entered in matter and need for persons to execute exhibit A for sharing purposes (0.4); prepare for and participate in committee meeting (1.5) 021 Review and analysis of Debtors D&O B120 BAB 3.90 445.00 1,7policies, analyze claim deadline and needs for preserving D&O claims 021 Began detailed review of documents B120 PDS 1.80 455.00 8produced by Debtors regarding potential claims. 021 Continued review of documents produced by B120 NJS 5.60 255.00 1,4Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 021 review D&O insurance policy B120 WSR 1.00 445.00 4 021 analyze D&O issues as they relate to B120 WSR 1.20 445.00 5exclusions, fiduciary duties and other issues 021 Detailed analysis of potential D&O and other B120 PDS 9.30 455.00 4,2claims and Owners/Lenders claims and review of related documents. 021 Continued review of documents produced by B120 NJS 2.00 255.00 5Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 021 Analyze UCC interests for report to B180 WSR 1.50 445.00 6committee. 2021 Review Castex Offshore Texas UCC filings. B180 KAH 0.60 150.00 2021 Communication re Committee's settlement B320 PDS 2.70 455.00 1,2proposal with M. Okin and D. Curry (1.0) and related analysis (1.7). 2021 Analysis of documents produced by Debtors B120 PDS 3.80 455.00 1,7and Lenders and related communications with Seaport. 2021 Telephone conference with committee FA re: B150 BAB 0.60 445.00 2D&O claims, other issues 2021 Emails with debtor's counsel and telephone B320 BAB 0.80 445.00 3conference with same re: plan supplement documents, other plan issues, analyze issues raised on call. 2021 review and analyze DE UCC filings (1.0); B180 WSR 6.20 445.00 2,7review and analyze TX UCC filings (.6); follow up research on unissued securities and perfection issues (2.8); analyzing possible settlement scenarios (.8); review Trust Agreement / Plan provisions (1.0)

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policies, analyze need to issue notice of claims to debtor in light of extended reporting periods 021 Finalize supplemental exhibits to App to B160 KAH 0.30 150.00 Employ Seaport; prepare Certificate of Service. 021 review of, and comments and revisions to, B320 PDS 0.50 455.00 2draft Schedule of retained Causes of Action. 021 review and draft Liquidating Trust Agreement B320 WSR 3.30 445.00 1,4021 Review and analyze Apache appeal decision, B320 BAB 5.90 445.00 2,6analyze effect on plan negotiations (1.1); telephone conference with D. Curry re: same (0.2); multiple revisions to proposed schedule of Retained CoA (2.7); review and analyze language in DIP and whether language bars preservation of challenge claims after plan confirmation or conversion, research re: same (1.9). 021 Telephone conferences with T. Thompson, T. B160 BAB 0.60 445.00 2Gibilterra re: Seaport engagement letter and committee verification, circulate same and file supplements to employment app 021 Analysis of Archrock Partners settlement B190 PDS 0.70 455.00 3proposal. 021 Attention to reversal of Apache judgment. B120 PDS 0.70 455.00 3021 Multiple communications with Seaport re B120 PDS 0.40 455.00 1potential claims against third parties. 021 review Apache judgment perfection and other B180 WSR 1.20 445.00 5secured claim issues 021 Detailed review of documents produced by B120 PDS 3.30 455.00 1,5Lenders and Debtors regarding potential claims. 021 Review of, and comments and revisions to, B120 PDS 0.70 455.00 3Seaport chronology of partners prepetition actions. 021 Continued review of documents produced by B120 NJS 1.90 255.00 4Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 021 Continued review of documents produced by B120 NJS 2.90 255.00 7Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Attention to outstanding signatures for B260 KAH 0.20 150.00 bylaws. 2021 Communications with Debtors and Seaport re B170 PDS 0.30 455.00 1indemnification provisions. 2021 Preparation of or for Committee meeting and B150 PDS 1.80 455.00 8conducting such meeting.

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deposition of Committee and related communications with M. Okin, Committee, and M. Maloney. 2021 Communications with M. Okin re plan B320 PDS 0.40 455.00 1negotiations. 2021 review /revise Trust Agreement and conform B320 WSR 2.00 445.00 8to Ch 11 Plan 2021 Revise settlement term sheet, analyze issues B320 BAB 1.60 445.00 7with new structure 2021 Prepare for and participate in telephone B190 BAB 1.90 445.00 8conference with FA re: Talos sale timeline, review and analyze prepared timeline presentation 2021 Prepare for and participate in committee B150 BAB 0.90 445.00 4conference call 2021 Revise Liquidating Trust Agreement, circulate B320 BAB 2.20 445.00 9same to debtor's counsel 2021 Telephone conference with D. Curry re: plan B320 BAB 0.90 445.00 4supplement issues, trust agreement issues, other confirmation issues (0.5); analyze issues raised by same (0.4). 2021 analysis of security issues related to Apache B180 WSR 2.10 445.00 9Judgment 2021 attend Committee meeting B150 WSR 0.90 445.00 4 2021 Analysis of documents newly produced by B120 PDS 2.50 455.00 1,1Debtors and Owners/Lenders re potential claims. 2021 Continued review of documents produced by B120 NJS 3.90 255.00 9Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Continued review of documents produced by B120 NJS 1.40 255.00 3Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Prepare Monthy Invoice Statements for B160 KAH 0.50 150.00 SRBA and Seaport. 2021 Communication with Capital One's counsel B190 BWA 0.20 365.00 re: its subpoena directed to UCC 2021 follow up on bylaws for execution B260 WSR 0.50 445.00 22021 Review and analyze Lender subpoena re: B190 BAB 1.80 445.00 8Castex settlement, analyze issues with same, production privileges, other issues 2021 Telephone conference with M. Okin re: B190 BAB 1.80 445.00 8Lender subpoena Castex and other settlement issues (0.5); multiple emails with same and L. Phillips re: CEI subpoena and response to proposal to set hearing on Castex settlement after confirmation, analyze issues raised by CEI response (1.4)

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Thompson re: indemnity issues raised by debtors 2021 review emails regarding plan issues B320 WSR 0.50 445.00 22021 additional analysis regarding security issues B180 WSR 0.30 445.00 12021 Targeted review of additional documents B120 PDS 3.50 455.00 1,5produced by Owners/Lenders and Debtors regarding investigation of potential claims. 2021 Continued review of documents produced by B120 NJS 4.70 255.00 1,1Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 receipt and review of Capital One B120 PDS 1.80 455.00 8Supplemental Production. 2021 Review of April fee statements for Committee B160 PDS 0.30 455.00 1Professionals and circulation of same to notice parties. 2021 Communication with local counsel re: B190 BWA 5.70 365.00 2,0upcoming filing deadlines (.20); Communication with Seaport re: report (.10) and subpoenas (.20); Communication from Lenders' counsel re: subpoena conference (.10); review subpoenas from Capital One and compromise motion, draft motion in support of compromise and begin formulating objections to subpoenas (5.10) 2021 additional emails to/from members regarding B260 WSR 0.50 445.00 2Bylaws 2021 Receipt and analysis of lender fee statement B170 BAB 0.30 445.00 1for April 2021 Review outstanding subpoenas service B120 KAH 0.30 150.00 issues; emails related to same. 2021 Analysis of subpoenas and review of B190 PDS 5.50 455.00 2,5responsive documents (3.4); detailed review and assignments of (a) memo in support of compromise, (b) responses to subpoenas, (c) deposition preparation and designation analysis, (d) witness and exhibit list and (e) preparation for hearing on approval of compromise (2.1). 2021 additional research and analysis regarding B180 WSR 2.20 445.00 9Talos share perfection issues 2021 prepare perfection / security report B180 WSR 1.50 445.00 62021 Continued review of documents produced by B120 NJS 3.50 255.00 8Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Communication with Seaport re: conference B190 BWA 0.20 365.00 call to discuss subpoena and hearing issues 2021 Receipt of CONA 3rd supplemental B120 PDS 0.40 455.00 1production and related communications with N. Saleem.

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compromise. 2021 Communication with CONA re document B120 PDS 0.10 455.00 production. 2021 Continued review of documents produced by B120 PDS 3.80 455.00 1,7Lenders and Debtors re potential claims. 2021 Multiple communications with M. Okin, D. B320 PDS 2.20 455.00 1,0Curry, L. Phillips and Committee's professionals re plan confirmation objections and settlement. 2021 Conference call with Seaport and B. Altazan B190 PDS 1.40 455.00 6re CEI compromise, including subpoena response, upcoming deposition testimony, and hearing (.8); multiple communications with M. Okin and L. Phillips re settlement of motion (.6). 2021 Settlement communications with L. Phillips B190 PDS 0.80 455.00 3and M. Okin. 2021 Communication with M. Okin, L. Phillips re B190 PDS 1.50 455.00 6compromise settlement; receipt and review of related revised order and Owners/Lenders opposition to 9019 motion. 2021 Continue drafting/revising Motion in Support B190 BWA 5.80 365.00 2,1of Debtor's proposed compromise with CEI (1.10); Telephone conference and multiple emails with Seaport re: compromise and confirmation issues (1.0); Draft response to subpoena duces tecum (3.0); Draft Exhibit/Witness List (.80); Communication with Lenders' counsel re: subpoena conference and attention to same (.70); Attention to calendaring of all compromise related depositions (.20) 2021 Prepetition security Interest perfection B180 KS 3.20 245.00 7analysis; compiled exhibits to report 2021 Settlement communications with M. Okin. B190 PDS 0.40 455.00 12021 Analyze issues related to confirmation B320 BAB 2.10 445.00 9objection. 2021 Additional revisions to report on security B180 WSR 0.80 445.00 3interests. 2021 Review of Committee's Objections to Capital B190 KS 0.90 245.00 2One's Subpoena; redline paper edit; checked ecf filings 2021 Continued review of documents produced by B120 NJS 2.40 255.00 6Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Drafting Motion for Standing to Bring B120 WSR 5.00 445.00 2,2Committee Claim 2021 Receipt/review outstanding subpeona service B180 KAH 0.10 150.00 return.

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Debtors, and Seaport re discovery and settlement issues re CEI settlement. 2021 Attention to Witness/Exhibit list (.40); B190 BWA 4.70 365.00 1,7Review/revise objection to subpoena duces tecum (.20); Communication with Seaport re: deposition, subpoena documents, and confirmation hearing testimony (2.10); Telephone conference with Lenders' counsel re: subpoenas and informal approach, email communication with lenders counsel re: same (1.40); Review report re: valuation range for motion in support (.30); Attention to extensions and new deadlines (.30) 2021 Analyze settlement status on plan, CEI (0.7); B320 BAB 5.50 445.00 2,4review and analyze Lender objection to CEI settlement (1.2); begin drafting objection to plan (3.6) 2021 Draft/revise challenge complaint against B120 PDS 1.70 455.00 7Lenders. 2021 Continued review of documents produced by B120 NJS 0.60 255.00 1Debtors, Intrepid, and CONA for investigation and analysis of potential claims. 2021 Call with Ha Nguyen re plan objections. B320 PDS 0.80 455.00 32021 Multiple communications with M. Okin, M. B190 PDS 1.60 455.00 7Warren, L. Phillips, and M. Maloney regarding the CEI Compromise and agreed order. 2021 Attend, monitor and "defend" informal B190 BWA 3.10 365.00 1,1deposition of Seaport by Lenders (.80); Review docket and finalize draft of Witness/Exhibit List for confirmation hearing and transmit to paralegal with directions for updating and filing (1.50); Communication with Seaport and Lenders' counsel re: status of compromise motion and need for depositions (.80) 2021 Continue drafting objection to plan, analyze B320 BAB 4.70 445.00 2,0issues with possible settlement structure which would eliminate certain objections 2021 Attention to preparation of documents in B320 KAH 0.40 150.00 anticipation of Confirmation Hearing 2021 Pull pleadings from Harris County case. B320 KAH 0.20 150.00 2021 Revise Witness/Exhibit List B320 KAH 0.20 150.00 2021 Compiled exhibits for security analysis report B180 KS 0.20 245.00 2021 additional review of underlying security B180 WSR 0.50 445.00 2documents 2021 Continued review and preparation of fact B120 PDS 13.30 455.00 6,0chronology regarding potential claims against certain third parties.

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plan term sheet and challenge. 2021 Communications with parties re CEI B190 PDS 0.40 455.00 1Compromise order and entry. 2021 Communication with Seaport re: status of B190 BWA 0.20 365.00 compromise issues (.10); Communication from Lenders re: inadvertent production of privileged material (.10) 2021 attend committee meeting B150 WSR 0.50 445.00 2 2021 Telephone conferences and emails with T. B160 BAB 1.10 445.00 4Thompson, D. Curry re: Seaport indemnity issues, circulate prior orders on FA's 2021 Review and analyze debtor's proposed plan B320 BAB 1.60 445.00 7term sheet and global effect on plan 2021 Review and analyze multiple plan B320 BAB 1.70 445.00 7confirmation objections 2021 Begin drafting motion to file Challenge B120 BAB 1.90 445.00 8Complaint under seal 2021 Review and analyze draft of challenge B120 BAB 2.80 445.00 1,2complaint, review and revise standing motion for challenge complaint 2021 Continued review of newly produced B120 PDS 6.60 455.00 3,0documents and drafting of chronology. 2021 analyze remaining Challenge issues re: B310 WSR 0.50 445.00 2lender perfection of security interests. 2021 Received claw-back request from CONA, B120 PDS 0.60 455.00 2reviewed subject materials for bank-examiner privilege, deleted from database and responded to CONA. 2021 Receipt and review of monthly operating B110 BAB 0.60 445.00 2reports from Debtors 2021 Continue drafting objection to plan (4.1); B320 BAB 6.30 445.00 2,8research re: rights of 2017 unsecured creditors to funds held by debtors (2.2) 2021 Finalize/file Stipulation extending challenge B120 KAH 0.20 150.00 period deadline. 2021 Revisions to witness/exhibit list. B320 KAH 0.20 150.00 2021 Communication from Lenders' counsel re: B120 BWA 0.30 365.00 1inadvertent production of privileged documents and subpoena response 2021 Receipt and review of stipulation on B120 BAB 0.10 445.00 extension to challenge period 2021 Attention to pleadings re: possible exhibits to B190 KAH 0.50 150.00 oppositions; revise witness/exhibit list. 2021 Continue drafting objection to plan (4.8); B320 BAB 7.40 445.00 3,2research re: releases and exculpations allowed in fifth circuit (2.6)

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documents and revisions to fact chronology and draft complaint. 2021 Review revisions to plan term sheet, analyze B320 BAB 1.20 445.00 5same, analyze status of plan negotiations and alternative strategies for plan settlement 2021 Continue drafting objection to plan, begin B320 BAB 5.70 445.00 2,5revisions to same 2021 Revisions to plan objection and multiple B320 PDS 3.10 455.00 1,4related communications with M. Okin. 2021 Communication with T. Thompson re B320 PDS 0.30 455.00 1confirmation issues. 2021 Telephone conference with debtors' counsel B320 BAB 6.10 445.00 2,7re: status of plan negotiations, plan revisions, plan budget, other issues (0.5); analyze issues raised by Debtors' counsel and review and analyze third amended plan (2.1); revise and analyze lender, debtor, UCC settlement term sheet (0.5); review and analyze Talos term sheet (0.6); begin revising plan objection (2.4) 2021 Review and revise stipulations extending B320 BAB 1.10 445.00 4challenge and objection deadlines (0.3); multiple emails with debtors' counsel, committee FA throughout day re: plan issues (0.7) 2021 Telephone conference with M. Oken re: latest B320 BAB 1.40 445.00 6plan settlement status (0.6), analyze structure of new Talos offer, risks on allocations, other issues (0.8) 2021 Emails with T. Thompson, D. Curry re: B160 BAB 0.20 445.00 Seaport order language 2021 Telephone conference with committee FA re: B320 BAB 0.70 445.00 3plan settlement proposals and analysis of same, options for minimizing risk on escrowed Talos shares 2021 Communication from K. O'Brien re: errant B120 BWA 0.10 365.00 subpoena responses 2021 emails regarding objection and other issues B320 WSR 0.50 445.00 22021 Revisions to chronology and review of B120 PDS 4.20 455.00 1,9additional documents and emails produced by Capital One; communications with M. Okin and M. Warren re challenge period extension. 2021 Revisions to Witness/Exhibit List for B320 KAH 0.30 150.00 Confirmation Hearing 2021 Attention to Witness/Exhibit List; pull exhibits. B320 KAH 0.30 150.00 2021 Revisions to order employing Seaport B160 KAH 0.50 150.00 2021 Finalize and file Witness & Exhibit List and B320 KAH 0.50 150.00 Exhibits; serve counsel.

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(.9); multiple communications with Committee and prospective LT's for upcoming pitches (.6). 2021 Communication with Seaport re plan B320 PDS 1.00 455.00 4analyses (.2); multiple communications with M. Okin and D. Curry re release language and settlement (.5); communication with M. Warren re settlement with Lenders (.1); communications with M. Bishop and D. Curry re TPIC compromise (.2). 2021 Communication with Committee re status of B150 PDS 0.60 455.00 2plan negotiations. 2021 Finalize and file Stipulation Extending B320 KAH 0.20 150.00 Deadline 2021 Review of term sheet and revisions thereto B320 PDS 4.50 455.00 2,0(1.6) conference call to work through term sheet (1.2); call with M. Okin to discuss remaining issues (.6); review and revisions to amended chapter 11 plan and related communications with Debtors (1.1). 2021 Research on undistributed funds after plan B120 KS 3.80 245.00 9confirmation in prior case 2021 Review, revise, finalize and direct filing of B320 BWA 1.90 365.00 6Exhibit and Witness List (and related exhibits) for confirmation hearing (1.70); Monitor communication with K. O'Brien re: subpoena responses (.20) 2021 attending Committee meeting call B150 WSR 0.90 445.00 42021 Prepare for and participate in conference with B150 BAB 1.40 445.00 6committee members re: plan status, settlement status, other issues (1.1); review surety objection, emails with committee and FA re: same (0.3) 2021 Review and analyze TPIC plan settlement B320 BAB 0.60 445.00 2term sheet, basis for same 2021 Analyze and redline plan with regard to 2017 B320 BAB 0.90 445.00 4creditor reserve funds, emails with Debtors' counsel re: same 2021 Review revised Seaport order, multiple B160 BAB 0.60 445.00 2emails with D. Curry re: same, finalize and submit same 2021 Conference with counsel for CEI re: CEI B320 BAB 1.70 445.00 7releases, analyze issues with same 2021 Analyze issues with scope of proposed B320 BAB 1.80 445.00 8release language and effect on avoidance actions, redline plan, multiple emails and telephone conferences with debtors' counsel re: same

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Thompson re: claim amounts and analysis of remaining claims in light of proposed settlements 2021 Receipt and review of proposed global term B320 BAB 1.20 445.00 5sheet, analyze same, review and analyze redlines to same (0.9), multiple emails with debtors' counsel re: provisions in same (0.3) 2021 Multiple communications with parties re plan B320 PDS 2.70 455.00 1,2settlement issues. 2021 Multiple calls with M. Okin, D. Curry, M. B320 PDS 2.90 455.00 1,3Warren, M. Bishop, and L. Phillips, re plan negotiations. 2021 Communications with L. Phillips and G. B190 PDS 1.30 455.00 5Pesce re partial settlement of claims against CEI-related individuals. 2021 Prepare pleadings and exhibits for B320 KAH 1.80 150.00 2confirmation hearing. 2021 Revisions to Term Sheet and Third Amended B320 PDS 3.90 455.00 1,7Plan and related communications with counsel to Walter, Talos, CEI, Lenders, and Debtors. 2021 Meeting with Committee to hear LT pitches B150 PDS 1.40 455.00 6and related communications with prospective LT's. 2021 Communication with chambers and counsel B320 PDS 0.30 455.00 1to Debtors and Lenders re status conference on extension of challenge period. 2021 Review of redlined third amended plan and B320 PDS 0.90 455.00 4related communications with D. Curry and M. Warren. 2021 Revisions to critical language in Term Sheet B320 PDS 4.60 455.00 2,0and Plan (2.1); review of third amended plan filed with court and related communications with TM. Warren and M. Okin re same (1.3); review of, and comments and revisions to, limited objection and reservation of rights prior to filing (1.2). 2021 Finalize/file Objection to Plan. B320 KAH 0.20 150.00 2021 Review and analyze multiple versions of B320 BAB 5.30 445.00 2,3revised term sheet (1.8), reviewed and analyzed multiple versions of redlined amended plan (2.5) multiple emails with debtors' counsel and others re: term sheet, plan, other issues (1.0) 2021 Review, revise and analyze proposed B320 BAB 2.20 445.00 9confirmation order and circulate same 2021 Revise objection to plan to accord with latest B320 BAB 2.60 445.00 1,1plan version and term sheet issues 2021 Analysis of assumption issues with regard to B320 BAB 1.70 445.00 7

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confirmation related, for hearings tomorrow. 2021 Research on undistributed funds after plan B320 KS 1.20 245.00 2confirmation in prior case 2021 Revisions to hearing and exhibit binders to B320 KAH 0.30 150.00 add additional pleadings. 2021 Draft/revise compromise language for Term B320 PDS 4.10 455.00 1,8Sheet and Plan and related communications with M. Oakly, M. Warren, L. Phillips, and PJ Goodwine (2.5); attend court on compromise (.9); continued communications with M. Waren, M. Okin and P. Goodwine re settlement (.7). 2021 Analyze latest status on settlement, multiple B320 BAB 1.20 445.00 5emails with debtors' counsel re: same 2021 Review and analyze claims anaysis prepared B310 BAB 0.60 445.00 2by Seaport 2021 Analysis of TK invoices provided by Debtors B180 PDS 2.50 455.00 1,1in discovery and email to M. Okin re TK preference analysis. 2021 Receipt and preliminary review of Debtors' B190 PDS 0.50 455.00 2and Lenders' final productions. 2021 Preliminary review and redline of 4th B320 PDS 0.80 455.00 3amended plan and related term sheet circulate by OA and CEI-related revisions circualated by L. Phillips. 2021 Review and analyze multiple drafts of revised B320 BAB 2.20 445.00 9plan language from Debtors, CEI 021 Communication with M. Okin re remaining B320 PDS 0.30 455.00 1issues in fourth amended plan. 021 Communication with T. Thompson re B150 PDS 0.20 455.00 summary for upcoming Committee call. 021 Emailed P. Goodwine and S. Zyndel re B320 PDS 0.40 455.00 1questions for Walter and Talos, respectively. 021 Preparation of or for upcoming committee call B150 PDS 1.80 455.00 8re plan settlement negotiations and approval of proposed settlement. 021 Communications with P. Goodwine and B320 PDS 0.20 455.00 Seaport re Walter due diligence. 021 Completed Committee presentation for B150 PDS 2.60 455.00 1,1upcoming meeting (2.1) and conducted meeting (.5). 021 Communications with P. Goodwine and M. B320 PDS 0.40 455.00 1Okin re chapter 11 plan settlement issues. 021 Prepare hearing binders. B320 KAH 1.60 150.00 2

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TS from Debtors, (b) multiple revisions of creditor-specific release language from L. Phillips, G. Pesce, and J. Hardy, (c) Liquidating Trust Agreement and Confirmation Order, and multiple related communications with M. Okin and L. Phillips. 021 Detailed review of, and revisions to, B320 PDS 3.60 455.00 1,6Liquidating Trust agreement, confirmation order and Term Sheet and related communications with D. Curry and M. Okin. 021 Attention to billing issues; finalize invoice; B160 KAH 1.70 150.00 2prepare Monthly Fee Statement. 021 Final review of (a) LT Agreement, (b) B320 PDS 2.20 455.00 1,0Confirmation Order, and (c) Fourth Amended Plan prior to confirmation and withdrawal of plan objection. 021 Review of MOR for March and April and B320 PDS 0.70 455.00 3stipulation between Debtors and plan objector. 021 Communications with M. Okin and L. Phillips B320 PDS 0.30 455.00 1re CEI vote. 021 Revisions to invoice and monthly billing B160 KAH 1.30 150.00 1statement. 021 Review and analyze proposed plan insert B320 WSR 0.40 445.00 1regarding treatment of Talos share escrow 021 Finalize preparation of pleadings needed for B320 KAH 0.30 150.00 confirmation hearing. 021 Review of revised plan documents and B320 PDS 3.40 455.00 1,5attended confirmation hearing. Total 396.20 $163,9

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FEE EARNER SUMMARY Fee Earner Hours Effective Rate Amount BAB Brandon A. Brown 110.80 445.00 49,306.00 BWA Brooke W. Altazan 22.20 365.00 8,103.00 KAH Kimberly A. Heard 13.40 150.00 2,010.00 KS Karina Shareen 9.70 245.00 2,376.50 NJS Nicholas J. Smeltz 33.40 255.00 8,517.00 PDS Paul Douglas Stewart, Jr. 164.70 455.00 74,938.50 WSR William S. Robbins 42.00 445.00 18,690.00 TASK SUMMARY Task Hours Effective Rate A B110 Case Administration 0.60 445.00 2 B120 Asset Analysis and Recovery 124.30 392.00 48,7 B150 Meetings of and Communications with Creditors 28.50 451.42 12,8B160 Fee/Employment Applications 8.60 274.83 2,3 B170 Fee/Employment Objections 0.70 450.71 3 B180 Avoidance Action Analysis 28.80 415.09 11,9 B190 Other Contested Matters(excluding assumptions/reje 47.00 408.14 19,1B260 Board of Directors Matters 1.50 405.67 6 B310 Claims Administration and Objections 1.10 445.00 4 B320 Plan and Disclosure Statement (Including Business 155.10 433.07 67,1URSEMENTS Description A 2021 Harris County District Clerk for searches 2021 UCC Search on Castex Energy 2005 Holdco, LLC 2021 UCC Search on Castex Energy 2005, LLC 2021 UCC Search on Castex Energy Partners, LLC 2021 UCC Search on Castex Offshore, Inc. 2021 QC Service on Castex Offshore, Inc. 2021 TransUnion searches for April 2021 1 2021 Everlaw litigation vendor charges for April 2021 2 2021 Copies for May 2021 5 2021 Everlaw for litigation vendor charges for May 2021 4 2021 Pacer for May 2021 2 Total DISBURSEMENTS $1,9 Total $165,8

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301 Main Street, Suit Baton Rouge, LA 7 225-231-9998 y Gibilterra June 30, File #: 63 Invoice #: Official Committee of Unsecured Creditors of Castex Energy 2005 Holdco, LLCDESCRIPTION Task LAWYER HOURS Rate AM 021 Review and analyze avoidance actions B180 BAB 1.80 445.00 8against T&K 021 Multiple emails with various counsel re: term B320 BAB 1.20 445.00 5sheet, final points for same, analyze issues relating to same 021 Multiple emails with committee re: final plan B150 BAB 1.10 445.00 4issues (0.3); prepare for and participate in conference call with committee re: plan (0.8) 021 Review and analyze latest turn of plan, term B320 BAB 3.30 445.00 1,4sheet and liquidating trust drafts, begin revising liquidating trust agreement to accord with plan and term sheet changes 021 Receipt and review of MORs filed by debtors B110 BAB 0.90 445.00 4021 Revisions to LTA, Confirmation order B320 BAB 3.80 445.00 1,6021 Final review and analysis of plan documents B320 BAB 2.30 445.00 1,0and proposed language changes to confirmation order 021 review and analyze proposed insert / B320 WSR 0.40 445.00 1language for Talos share / escrow 021 Review stipulation re: USSIC entered by B320 BAB 0.10 445.00 court 021 Review filed versions of final plan documents B320 BAB 1.00 445.00 4021 Review W&T stipulation entered by court B320 BAB 0.20 445.00 021 Review and analyze entered confirmation B320 BAB 0.40 445.00 1order, changes from submitted language 021 Analysis of Confirmation Order, Chapter 11 B320 PDS 2.70 455.00 1,2Plan, and LT Agreement for summary of provisions for LT, including spreadsheet of important dates and deadlines associated with confirmed Chapter 11 Plan.

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Chapter 11 Plan, and LT Agreement for summary of provisions for LT, including spreadsheet of important dates and deadlines associated with confirmed Chapter 11 Plan. 021 Multiple communications with M. Okin re B320 PDS 0.30 455.00 1transition issues and Committee professionals re upcoming meeting re same. 2021 Finalize invoice; revisions to Monthly Fee B160 KAH 0.30 150.00 Statement 2021 Continued review of Plan, Confirmation B320 PDS 4.90 455.00 2,2Order, Liquidating Trust Agreement, and Plan Term Sheet and construction of (a) spreadsheet of critical dates, deadlines, and notice requirements, (b) summary of plan- related provisions by topic, and (c) presentation for Liquidating Trustee of the Liquidating Trust's rights, obligations and Duties going forward. 2021 Revisions to May invoice and monthly fee B160 PDS 0.80 455.00 3summary. 2021 Multiple emails with UCC professionals re: B160 BAB 0.40 445.00 1fee estimates 2021 Review Danos notice of lien perfection B120 BAB 0.20 445.00 2021 Receipt and review of order extending UCC B190 BAB 0.20 445.00 challenge deadline 2021 Receipt and review of Order granting B185 BAB 0.30 445.00 1stipulation between Talos and COI 021 Continued analysis of plan documents and B150 PDS 2.10 455.00 9presentation for LT and revised in light of transition call. 021 Call with M. Okin re transition issues. B320 PDS 0.40 455.00 1021 Preparation of or for call with LT re next B150 PDS 2.10 455.00 9steps, both pre and post-effective date, and conducted call. 021 Review with trustee on upcoming plan B320 BAB 1.50 445.00 6deadlines, effective date and other issues (1.0); review presentation deck on same (0.5) 021 Multiple emails with counsel for debtor re: B320 BAB 0.80 445.00 3effective date issues, analyze same 2021 development and analysis of list of transition B320 PDS 1.40 455.00 6duties and responsibilities. 2021 Communication with Committee regarding B150 PDS 0.70 455.00 3upcoming call and update on case status. 2021 Analysis of issues regarding escrowed talos B130 PDS 0.40 455.00 1shares. 2021 Communication with Donlin re transition to LT B160 PDS 0.20 455.00 noticing.

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with M. Okin and D. Curry (.1); communications with Z. Balasko and R. Lamb regarding regulatory transition issues (.3); communication with T. Thompson re transition issues (.1). 2021 Communications with parties re transition B320 PDS 0.20 455.00 meeting and Donlin re 2021 Analyze transition issues to LT B320 BAB 0.80 445.00 32021 Multiple emails with committee re: status of B150 BAB 0.40 445.00 1transactions and effective date transition 2021 Completed transition strategy and B320 PDS 1.60 455.00 7assignments to firm. 2021 Prepared for, and conducted, call with R. B210 PDS 1.60 455.00 7Lamb and Z. Balasko re several regulatory issues. 2021 Communications with S. Zundell re escrow B130 PDS 0.30 455.00 1agreement. 2021 Meeting with US Trustee and Dept. of Interior B310 KS 0.40 245.00 regarding Castex transition to Liquidating Trust; discussion and analysis regarding qualifications for OCS lease 2021 Attention to new tasks assigned re: Trust B310 BWA 0.50 365.00 1obligations 2021 Multiple emails with various counsel re: B320 BAB 0.40 445.00 1Effective Date transactions, needs moving forward 2021 Analyze upcoming needs on Trust side post- B320 BAB 0.70 445.00 3ED 2021 analyzing Oil & Gas / BOAA issues relating to B150 WSR 1.10 445.00 4Operating / Permit issues 2021 Meeting regarding Castex Effective Date B120 KS 0.60 245.00 1Transactions 2021 Communication with T. Thompson re B260 PDS 0.50 455.00 2insurance and bonding issues. 2021 Global call to discuss effective date closing B320 PDS 0.90 455.00 4checklist items. 2021 Calculated Committee Professionals' B160 PDS 1.90 455.00 8compensation through date of confirmation under fee procedures order and cash collateral budget in order to provide amounts for May compensation, June budget, and Professional Fees Escrow (1.1); call with Committee Professionals re same (.8). 2021 Revisions to transition and case strategies B320 PDS 1.40 455.00 6based upon modified projected effective date and Debtors' closing checklist (.8); meeting with team regarding strategy (.6). 2021 Updated presentation for Committee and B150 PDS 0.80 455.00 3

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cumulative budget 2021 Review and analysis of Debtor's ED closing B320 BAB 0.60 445.00 2checklist 2021 Emails with UCC prof. team re: fees due, B320 BAB 0.50 445.00 2cash collateral order issues, analyze same 2021 call regarding implementation of Plan (.5); B120 WSR 0.90 445.00 4follow up analysis regarding lien release issues (.4) 2021 review of, and comments and revisions to, B160 PDS 0.50 455.00 2Seaport Second Monthly Fee Statement and related communications with Professional Fee Notice Parties. 2021 Meeting with team re: upcoming projects, to B320 BAB 1.50 445.00 6do list, needs on same 2021 Prepare for and attend meeting with UCC on B150 BAB 1.30 445.00 5ED transfer issues, review and analyze presentation deck for same 2021 Emails with debtor's counsel re: information B320 BAB 0.30 445.00 1handover to trust, analyze issues re: same 2021 Research regarding status of creditor's trust B310 KS 2.90 245.00 7from prior chapter 11 plan. 2021 team meeting regarding Post Confirmation B320 WSR 0.70 445.00 3transactions and tasks 2021 Attention to post-cofirmation deadlines; team B320 KAH 1.00 150.00 1meeting re: post-confirmation plan moving forward. 2021 Research on undistributed funds after plan B320 KS 1.30 245.00 3confirmation in prior case 2021 Call with Donlin and T. Thompson re B210 PDS 0.60 455.00 2transition issues. 2021 communications to/from Mr. Thompson B320 WSR 0.30 445.00 1regarding transition 2021 Review notice of perfection filed by ESSI B110 BAB 0.20 445.00 2021 Research regarding status of creditor's trust B320 KS 2.00 245.00 4from prior chapter 11 plan. 2021 Meeting with LT regarding Castex transition B310 KS 0.60 245.00 1to Liquidating Trust; discussion and analysis of 2016 ONRR Valuation Rule; next course of actions re: tax professionals 2021 Analysis of Schooner transition worksheet B210 PDS 1.30 455.00 5and related conference call with T. Thompson and team. 2021 Communications with T. Thompson, Debtors' B120 PDS 0.80 455.00 3counsel and R. Keubel re WC-73. 2021 Analysis of issues with escrowed Talos B130 PDS 0.60 455.00 2shares and related communications with T. Thompson.

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transactions (.4); receive proposed Talos Escrow instructions and related securities documents (.3); review Escrow Agreement (.5); review and analyze escrow instructions and securities documents (1.8); communications with counsel for Talos regarding documents and Securities registration issues (.4); consider securities regulation and related issues (1.1) 2021 Emails with Debtor's counsel re: update on B320 BAB 0.20 445.00 WC73 2021 Multiple emails with V&E re: stock transfer B320 BAB 0.80 445.00 3issues (0.3); analyze issues re; same (0.5) 2021 Research regarding status of creditor's trust B130 KS 2.30 245.00 5from prior chapter 11 plan. 2021 Attended to transition issues re WC 75, B210 PDS 1.10 455.00 5trust's obligations, and other issues. 2021 review of, and comments to, Debtors' B320 PDS 3.70 455.00 1,6sources and uses, cash flow, and variance report, and related communication with Seaport, M. Warren and M. Okin. 2021 analysis of WC-73 issues and related B130 PDS 2.30 455.00 1,0communications with R. Keubel. 2021 Analyze issues relating to Schooner B320 BAB 0.90 445.00 4payments, review and analyze employment contract, analyze initial trust cash projections 2021 Review and analyze latest budget variance B230 BAB 0.80 445.00 3report from Debtor, emails with counsel for CapOne re: same 2021 Review of updated transfer documents B130 KS 0.40 245.00 associated with escrowed Talos shares; review of updated joint instructions 2021 Call with Seaport to discuss flow of funds to B210 PDS 1.80 455.00 8LT; related communications with M. Warren and M. Okin (.6); draft/revise notice of LTCR (); 2021 Communications with T. Thompson, P. B130 PDS 0.80 455.00 3Goodwine and C. Elias re WC-73 issues. 2021 Completed analysis of the Committee's B160 PDS 1.10 455.00 5Professional Fee Escrow Amount and revised Sources and Uses for Notice of Effective Date and circulated both to group. 2021 receive/review revised transactional Stock B320 WSR 0.80 445.00 3Transfer documents 2021 Analyze latest drafts of escrow share B320 BAB 0.70 445.00 3agreements, multiple emails re: same 2021 Multiple emails with Walter re: WC-73 issues, B320 BAB 0.50 445.00 2analyze same 2021 Analyze issues re: professional fee escrow, B320 BAB 0.80 445.00 3

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Effective Date and related communications with Debtors, CEI, Talos, creditors and Trustee. 2021 Communication with parties re effective date B320 PDS 0.10 455.00 call. 2021 communication with Talos counsel and B320 WSR 0.40 445.00 1analysis regarding post confirmation documents, effective date and revisions 2021 Multiple emails with various counsel re: B320 BAB 0.80 445.00 3closing issues for ED, review and analyze latest closing checklist circulated by debtor 2021 Attention to transition issues relating to qual B210 PDS 2.80 455.00 1,2Cards, signature cards, and other closing issues for effective date (1.6); all-hands call to discuss transition and closing (.8); related communications with team and T. Thompson re closing issues (.4). 2021 Receipt and review of May MOR B110 BAB 0.50 445.00 22021 review revised Talos stock transfer B130 WSR 4.40 445.00 1,9agreements (1.3); review Trust Agreement and Plan (1.2); communications with Mr. Thompson regarding new bank account, stock brokerage account, EIN, and other Effective Date transaction issues (.7); review Capital One bank forms (.4); review Qual Card and analyzing transfer issues (.6); communication with Talos counsel regarding revisions and regarding account questions (.3) 2021 Communication with M. Okin re closing and B320 PDS 2.30 455.00 1,0revised settlement statement (.1); communications with Trustee re WC-73 and 270A properties and Schooner's continued involvement (.2); multiple communications with team and T. Thompson re closing issues (1.7); review of Notice of Effective Date and instructions to team re dates (.3). 2021 Multiple emails re: consumation of plan (0.4); B320 BAB 1.70 445.00 7review motion to assume filed by Debtor re: Talos contracts (0.5); review TPIC assumption notice filed by debtors (0.4); receipt and review of executed trust agreement (0.2); emails with counsel for debtors re: Notice of Effective Date (0.2) 2021 communications with multiple parties B130 WSR 5.50 445.00 2,4regarding revised closing documents; receive / review multiple revisions; analyzing stock brokerage issues; communication to/from Talos counsel regarding Trustee / trust information; review and forward trust closing documents; multiple follow up communications regarding closing

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FEE EARNER SUMMARY Fee Earner Hours Effective Rate Amount BAB Brandon A. Brown 34.40 445.00 15,308.00 BWA Brooke W. Altazan 0.50 365.00 182.50 KAH Kimberly A. Heard 1.30 150.00 195.00 KS Karina Shareen 10.50 245.00 2,572.50 PDS Paul Douglas Stewart, Jr. 48.80 455.00 22,204.00 WSR William S. Robbins 19.00 445.00 8,455.00 TASK SUMMARY Task Hours Effective Rate A B110 Case Administration 1.60 445.00 7 B120 Asset Analysis and Recovery 2.50 400.20 1,0 B130 Asset Disposition 17.00 415.82 7,0 B150 Meetings of and Communications with Creditors 9.60 450.94 4,3B160 Fee/Employment Applications 5.20 436.63 2,2 B180 Avoidance Action Analysis 1.80 445.00 8 B185 Assumption/Rejection of Leases and Contracts 0.30 445.00 1B190 Other Contested Matters(excluding assumptions/reje 0.20 445.00B210 Business Operations 11.10 455.00 5,0 B230 Financing/Cash Collections 1.30 445.00 5 B260 Board of Directors Matters 0.50 455.00 2 B310 Claims Administration and Objections 4.40 258.64 1,1 B320 Plan and Disclosure Statement (Including Business 59.00 432.51 25,5URSEMENTS Description A 2021 Veritext Legal Solutions for transcript services 2021 Castex Energy 2005 Holdco, LLC Hearing Transript 2021 Copies for June 2021 4 2021 Everlaw for litigation vendor charges for June 2021 4 2021 Pacer for June 2021 Total DISBURSEMENTS $1,1 Total $50,0

87