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
This text of 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 (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) is published on Counsel Stack Legal Research, covering Court of Appeals of Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.
Opinion
ACCEPTED 15-25-00120-CV FIFTEENTH COURT OF APPEALS AUSTIN, TEXAS 1/2/2026 5:17 PM No. 15-25-00120-CV CHRISTOPHER A. PRINE CLERK In the Court of Appeals FILED IN 15th COURT OF APPEALS for the Fifteenth District of Texas AUSTIN, TEXAS 1/2/2026 5:17:37 PM CHRISTOPHER A. PRINE Clerk
Primexx Energy Opportunity Fund, LP, et al., Appellants, v.
Primexx Energy Corporation, et al., Appellees.
Appeal from the Texas Business Court, First Division Dallas County, Texas Honorable Bill Whitehill
FIRST UNOPPOSED MOTION FOR EXTENSION OF TIME TO FILE APPELLANTS’ REPLY BRIEF
SUSMAN GODFREY L.L.P. Pro hac vice forthcoming:
Stephen Shackelford, Jr. Marc M. Seltzer State Bar No. 24062998 (TX) mseltzer@susmangodfrey.com sshackelford@susmangodfrey.com Bryan Caforio 1000 Louisiana Street, Ste 5100 bcaforio@susmangodfrey.com Houston, Texas 77002 Lindsey Godfrey Eccles Telephone: (713) 651-9366 leccles@susmangodfrey.com Facsimile: (713) 654-6666 Sarah Hannigan shannigan@susmangodfrey.com
Attorneys for Appellees Pursuant to Texas Rules of Appellate Procedure 10.5(b) and 38.6(d),
Primexx Energy Opportunity Fund LP and Primexx Energy Opportunity
Fund II LP (“Appellants”) file this first unopposed motion for an 18-day
extension of time to file Appellants’ Reply Brief, with a new submission
date of January 23, 2026. Appellants require additional time to evaluate
Appellees’ briefing. This is Appellants’ first request for an extension.
Appellees do not oppose.
Appellants respectfully request that the Court grant their first
unopposed motion for an 18-day extension of time to file Appellants’
Reply Brief, with a new submission date of January 23, 2026.
Dated: January 2, 2026 Respectfully submitted,
SUSMAN GODFREY L.L.P.
By: /s/ Stephen Shackelford, Jr. Stephen Shackelford, Jr. State Bar No. 24062998 (TX) sshackelford@susmangodfrey.com SUSMAN GODFREY L.L.P. 1000 Louisiana Street, Suite 5100 Houston, Texas 77002 Telephone: (713) 651-9366 Facsimile: (713) 654-6666
Marc M. Seltzer (pro hac vice forthcoming)
2 State Bar No. 54534 (CA) mseltzer@susmangodfrey.com Bryan Caforio (pro hac vice forthcoming) State Bar No. 261265 (CA) bcaforio@susmangodfrey.com SUSMAN GODFREY L.L.P. 1900 Avenue of the Stars, Suite 1400 Los Angeles, CA 90067 Telephone: (310) 789-3100 Facsimile: (310) 789-3150
Lindsey Godfrey Eccles (pro hac vice forthcoming) State Bar No. 33566 (WA) leccles@susmangodfrey.com SUSMAN GODFREY L.L.P. 401 Union Street, Suite 3000 Seattle, WA 98101 Telephone: (206) 516-3880 Facsimile: (206) 516-3883
Sarah Hannigan (pro hac vice forthcoming) State Bar No. 5961248 (NY) shannigan@susmangodfrey.com SUSMAN GODFREY L.L.P. One Manhattan West New York, NY 10001 Telephone: (212) 336-8330 Facsimile: (212) 336-8340
Attorneys for Appellees
3 Certificate of Service
This is to certify that on January 2, 2026 a true and correct copy of
the above and foregoing instrument was properly forwarded to counsel of
record in accordance with Rule 21 of the Texas Rules of Civil Procedure.
/s/ Stephen Shackelford, Jr. Stephen Shackelford, Jr.
Certificate of Conference
Counsel for Appellants conferred with counsel for Appellees via e-
mail on November 19, 2025 regarding this motion. Appellees do not
oppose this motion.
4 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.
Stephen Shackelford on behalf of Stephen Shackelford Bar No. 24062998 sshackelford@susmangodfrey.com Envelope ID: 109619492 Filing Code Description: Motion Filing Description: Appellants' First Unopposed Motion for Extension to File Reply Brief Status as of 1/5/2026 7:01 AM CST
Associated Case Party: Blackstone Inc.
Name BarNumber Email TimestampSubmitted Status
David S.Coale dcoale@lynnllp.com 1/2/2026 5:17:37 PM SENT
Christopher W.Patton cpatton@lynnllp.com 1/2/2026 5:17:37 PM SENT
Kay Ridenour kridenour@lynnllp.com 1/2/2026 5:17:37 PM SENT
Kyle A.Gardner kgardner@lynnllp.com 1/2/2026 5:17:37 PM SENT
Scott Smoot ssmoot@lynnllp.com 1/2/2026 5:17:37 PM SENT
Jessica Cox jcox@lynnllp.com 1/2/2026 5:17:37 PM SENT
Yaman Desai ydesai@lynnllp.com 1/2/2026 5:17:37 PM SENT
NATALIE STALLBOHM nstallbohm@lynnllp.com 1/2/2026 5:17:37 PM SENT
Chris Schwegmann cschwegmann@lynnllp.com 1/2/2026 5:17:37 PM SENT
Gina Flores gflores@lynnllp.com 1/2/2026 5:17:37 PM SENT
Julie Archuleta jarchuleta@lynnllp.com 1/2/2026 5:17:37 PM SENT
Kerri Jones kjones@lynnllp.com 1/2/2026 5:17:37 PM SENT
Ronni Bracken rbracken@lynnllp.com 1/2/2026 5:17:37 PM SENT
Shirley Xu sxu@lynnllp.com 1/2/2026 5:17:37 PM SENT
Case Contacts
Jeremy Fielding 24040895 jeremy.fielding@kirkland.com 1/2/2026 5:17:37 PM SENT
Stephen Shackelford 24062998 sshackelford@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
Roger Cowie 783886 roger.cowie@troutman.com 1/2/2026 5:17:37 PM SENT
Christopher Patton 24083634 cpatton@lynnllp.com 1/2/2026 5:17:37 PM SENT 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.
Stephen Shackelford on behalf of Stephen Shackelford Bar No. 24062998 sshackelford@susmangodfrey.com Envelope ID: 109619492 Filing Code Description: Motion Filing Description: Appellants' First Unopposed Motion for Extension to File Reply Brief Status as of 1/5/2026 7:01 AM CST
Christopher Patton 24083634 cpatton@lynnllp.com 1/2/2026 5:17:37 PM SENT
Zack Ewing zack.ewing@kirkland.com 1/2/2026 5:17:37 PM SENT
Kasdin Mitchell 24135030 kasdin.mitchell@kirkland.com 1/2/2026 5:17:37 PM SENT
Nicholas Perrone nicholas.perrone@kirkland.com 1/2/2026 5:17:37 PM SENT
Gary Vogt gvogt@kirkland.com 1/2/2026 5:17:37 PM SENT
Griffin Vail griffin.vail@kirkland.com 1/2/2026 5:17:37 PM SENT
Austin Lesch austin.lesch@kirkland.com 1/2/2026 5:17:37 PM SENT
Michael Patton michael.patton@kirkland.com 1/2/2026 5:17:37 PM SENT
Taylor Levesque Taylor.Levesque@troutman.com 1/2/2026 5:17:37 PM SENT
Louisa Karam Louisa.Karam@troutman.com 1/2/2026 5:17:37 PM SENT
Associated Case Party: Primexx Energy Opportunity Fund, LP
Sarah Hannigan shannigan@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
Bryan Caforio bcaforio@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
Michelle Williams mwilliams@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
Jeanine Ishridas jishridas@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
Lindsey Eccles leccles@susmangodfrey.com 1/2/2026 5:17:37 PM SENT
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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, Counsel Stack Legal Research, https://law.counselstack.com/opinion/primexx-energy-opportunity-fund-lp-and-primexx-energy-opportunity-fund-ii-texapp-2026.