Court of Civil Appeals of Texas, 2025

Primexx Energy Opportunity Fund, LP and Primexx Energy Opportunity Fund II, LP v. Primexx Energy Corporation, M. Christopher Doyle, Angelo Acconcia, Blackstone Inc., Blackstone Holdings III LP, Blackstone EMA II LLC, BMA VII LLC, Blackstone Energy Management Associates II LLC, Blackstone Energy Partners II LP, Blackstone Management Associates VII LLC, Blackstone Capital Partners VII LP, BCP VII/BEP II Holdings Manager LLC, BX Primexx Topco LLC, and BPP Holdco LLC

Court of Civil Appeals of Texas · Decided November 7, 2025

Opinion

ACCEPTED 15-25-00120-CV FIFTEENTH COURT OF APPEALS AUSTIN, TEXAS 11/7/2025 1:37 PM No. 15-25-00120-CV CHRISTOPHER A. PRINE CLERK FILED IN 15th COURT OF APPEALS In the Court of Appeals AUSTIN, TEXAS for the Fifteenth District of Texas 11/7/2025 1:37:38 PM CHRISTOPHER A. PRINE Clerk Primexx Energy Opportunity Fund, LP and Primexx Energy Opportunity Fund II, LP, Appellants, v. Primexx Energy Corporation, M. Christopher Doyle, Angelo Acconcia, Blackstone Inc., Blackstone Holdings III LP, Blackstone EMA II LLC, BMA VII LLC, Blackstone Energy Management Associates II LLC, Blackstone Energy Partners II LP, Blackstone Management Associates VII LLC, Blackstone Capital Partners VII LP, BCP VII/BEP II Holdings Manager LLC, BX Primexx Topco LLC, and BPP Holdco LLC, Appellees.

Appeal from the First Business Court Division Dallas County, Texas Honorable Bill Whitehill, Judge Presiding

FIRST UNOPPOSED MOTION FOR EXTENSION OF TIME TO FILE APPELLEES’ BRIEF David S. Coale Yaman Desai [email protected] [email protected] Christopher J. Schwegmann Kyle A. Gardner [email protected] [email protected] Christopher W. Patton Jessica D. Cox [email protected] [email protected] LYNN PINKER HURST & SCHWEGMANN LLP 2100 Ross Avenue, Suite 2700 Dallas, Texas 75201 Telephone: (214) 981-3800 Facsimile: (214) 981-3839 Attorneys for Appellees Angelo Acconcia, Blackstone Inc., Blackstone Holdings III LP, Blackstone EMA II LLC, BMA VII LLC, Blackstone Energy Management Associates II LLC, Blackstone Energy Partners II LP, Blackstone Management Associates VII LLC, Blackstone Capital Partners VII LP, BCP VII/BEP II Holdings Manager LLC, BX Primexx Topco LLC, and BPP Holdco LLC Jeremy A. Fielding, P.C. Zack C. Ewing [email protected] [email protected] Kasdin M. Mitchell, P.C. Michael C. Patton [email protected] [email protected] Austin J. Lesch KIRKLAND & ELLIS LLP [email protected] 4550 Travis Street Dallas, Texas 75205 KIRKLAND & ELLIS LLP Telephone: (214) 972-1770 401 West 4th Street Facsimile: (214) 972-1771 Austin, Texas 78701 Telephone: (512)-678-9100 Facsimile: (512) 678-9101 Attorneys for Appellees Primexx Energy Corporation Roger B. Cowie [email protected] M. Taylor Levesque [email protected] TROUTMAN PEPPER LOCKE LLP 2200 Ross Avenue, Suite 2800 Dallas, Texas 75201 T: (214) 740-8000 F: (214) 740-8800 Attorneys For Appellee M. Christopher Doyle TO THE HONORABLE COURT OF APPEALS: Under Texas Rules of Appellate Procedure 10.5(b)(1) and 38.6(d), Appellees file this first unopposed motion for an extension of time and respectfully request a 30-day extension, or until December 15, 2025, to file Appellees’ Brief.

I. CURRENT DEADLINE Appellees’ Brief is currently due on Friday, November 14, 2025.

II. REASONS FOR EXTENSION Appellees require additional time to review the record, analyze relevant law, and prepare Appellees’ Brief. In addition to preparing Appellees’ Brief, counsel for Appellees have been and continue to have responsibilities for additional cases between the date of this Motion and the current deadline to submit Appellees’ Brief. This extension of time is sought so that justice may be done in the disposition of this case and is not sought for purposes of delay.

This is the first extension of the briefing deadline sought by Appellees.

III. REQUEST FOR RELIEF For these reasons, Appellees request that the Court grant this First Unopposed Motion for Extension of Time to File Appellees’ Brief, extending the time to file Appellees’ Brief until December 15, 2025.

DATE: November 7, 2025 Respectfully submitted, /s/ David S. Coale /s/ Jeremy A. Fielding David S. Coale Jeremy A. Fielding, P.C.

Texas Bar No. 00787255 Texas Bar No. 24040895 [email protected] [email protected] Christopher J. Schwegmann Kasdin M. Mitchell, P.C.

Texas Bar No. 24051315 Texas Bar No. 24135030 [email protected] [email protected] Christopher W. Patton KIRKLAND & ELLIS LLP Texas Bar No. 24083634 4550 Travis Street [email protected] Dallas, Texas 75205 Yaman Desai Telephone: (214) 972-1770 Texas Bar No. 24101695 Facsimile: (214) 972-1771 [email protected] Kyle A. Gardner Zack C. Ewing Texas State Bar No. 24116412 Texas Bar No. 24113650 [email protected] [email protected] Jessica D. Cox Michael C. Patton Texas Bar No. 24114769 Texas Bar No. 24137104 [email protected] [email protected] Austin J. Lesch LYNN PINKER HURST & Texas Bar No. 24143116 SCHWEGMANN LLP [email protected] 2100 Ross Avenue, Suite 2700 KIRKLAND & ELLIS LLP Dallas, Texas 75201 401 West 4th Street Telephone: (214) 981-3800 Austin, Texas 78701 Facsimile: (214) 981-3839 Telephone: (512)-678-9100 Facsimile: (512) 678-9101 /s/ Roger B. Cowie_______ Roger B. Cowie Texas Bar No. 00783886 [email protected] M. Taylor Levesque Texas Bar No. 24107296 [email protected] TROUTMAN PEPPER LOCKE LLP 2200 Ross Avenue, Suite 2800 Dallas, Texas 75201

T: (214) 740-8000 F: (214) 740-8800 Attorneys for Appellees

Certificate of Service The undersigned hereby certifies that a true and correct copy of the above and foregoing document was served on all counsel of record via eFileTexas on November 7, 2025.

/s/ Yaman Desai Yaman Desai

Certificate of Conference The undersigned certifies that counsel for Appellants conferred with counsel for Appellants via e-mail on November 5, 2025, and the relief requested by this Motion is not opposed.

/s/ Yaman Desai Yaman Desai

Automated Certificate of eService This automated certificate of service was created by the efiling system.

The filer served this document via email generated by the efiling system on the date and to the persons listed below. The rules governing certificates of service have not changed. Filers must still provide a certificate of service that complies with all applicable rules.

Kerri Jones on behalf of David Coale Bar No. 787255 [email protected] Envelope ID: 107806130 Filing Code Description: Motion Filing Description: 2025-11-07 First Unopposed Motion for Extension of Time to File Appellees' Brief Status as of 11/7/2025 2:12 PM CST Case Contacts Name BarNumber Email TimestampSubmitted Status David S.Coale [email protected] 11/7/2025 1:37:38 PM SENT Christopher W.Patton [email protected] 11/7/2025 1:37:38 PM SENT Kay Ridenour [email protected] 11/7/2025 1:37:38 PM SENT Jeremy Fielding 24040895 [email protected] 11/7/2025 1:37:38 PM SENT Stephen Shackelford 24062998 [email protected] 11/7/2025 1:37:38 PM SENT Roger Cowie 783886 [email protected] 11/7/2025 1:37:38 PM SENT Christopher Patton 24083634 [email protected] 11/7/2025 1:37:38 PM SENT Kyle A.Gardner [email protected] 11/7/2025 1:37:38 PM SENT Scott Smoot [email protected] 11/7/2025 1:37:38 PM SENT Yaman Desai [email protected] 11/7/2025 1:37:38 PM SENT NATALIE STALLBOHM [email protected] 11/7/2025 1:37:38 PM SENT SCOTT SMOOT [email protected] 11/7/2025 1:37:38 PM SENT Chris Schwegmann [email protected] 11/7/2025 1:37:38 PM SENT Gina Flores [email protected] 11/7/2025 1:37:38 PM SENT Julie Archuleta [email protected] 11/7/2025 1:37:38 PM SENT Kerri Jones [email protected] 11/7/2025 1:37:38 PM SENT Zack Ewing [email protected] 11/7/2025 1:37:38 PM SENT Kasdin Mitchell 24135030 [email protected] 11/7/2025 1:37:38 PM SENT Jessica Cox [email protected] 11/7/2025 1:37:38 PM SENT Sarah Hannigan [email protected] 11/7/2025 1:37:38 PM SENT Bryan Caforio [email protected] 11/7/2025 1:37:38 PM SENT Michelle Williams [email protected] 11/7/2025 1:37:38 PM SENT Automated Certificate of eService This automated certificate of service was created by the efiling system.

Case-law data current through December 31, 2025. Source: CourtListener bulk data.