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, and BX Primexx Topco LLC v. Primexx Energy Opportunity Fund, LP and Primexx Energy Opportunity Fund II, LP

ACCEPTED 15-25-00014-CV FIFTEENTH COURT OF APPEALS AUSTIN, TEXAS 5/29/2025 7:05 PM No. 15-25-00014-CV CHRISTOPHER A. PRINE CLERK In the Court of Appeals FILED IN 15th COURT OF APPEALS for the Fifteenth District of Texas AUSTIN, TEXAS 5/29/2025 7:05:49 PM CHRISTOPHER A. PRINE Clerk Blackstone Holdings III LP, et al., Appellants, v. Primexx Energy Opportunity Fund LP, et al., Appellees. Appeal from the Texas Business Court, First Division Dallas County, Texas Honorable Bill Whitehill BRIEF FOR APPELLEES ORAL ARGUMENT REQUESTED SUSMAN GODFREY L.L.P. Pro hac vice forthcoming: Stephen Shackelford,…