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Cornerstone Petroleum Resources

Cornerstone Petroleum Resources is an exploration and production company located in Fort Worth, Texas. The company primarily focuses on the development of shale oil resources via joint ventures, farm-ins and organic leasing opportunities with existing acreage owners and operators. Cornerstone is managed by a team of proven operational experts in horizontal drilling and hydraulic fracturing techniques, led by Lee Matthews (President and CEO).

Initial Investment: 2013
  • Post Oak Minerals III
  • SandRidge Energy, Inc.
  • Richland-Stryker Generation, LLC
  • Midway Energy Partners
  • Double Eagle Energy Permian
  • Atlas Energy Resources, LLC
  • PetroEdge Energy IV
  • Sierra EF, LP
  • Post Oak Minerals V
  • EV Energy Partners
  • Bayou Well Services
  • Permian Resources
  • Nadel and Gussman NV, LLC
  • Tri-C Energy Partners, LLC
  • UpCurve II
  • Chaparral Energy
  • Crown Oil Partners VI/ BC Operating
  • Crown Oil Partners IV/ BC Operating
  • Rimrock Resource Operating
  • RAM Energy Resources
  • Mavros Minerals
  • Cornerstone Petroleum Resources
  • Black Oak Resources, LLC
  • UpCurve Energy
  • Maverick Brothers Energy
  • Crown Oil Partners V/ BC Operating
  • Post Oak Minerals II
  • Broken Oak Investments LLC
  • Linn Energy, LLC
  • Post Oak Minerals I
  • Quantent Energy Partners, LLC
  • Oryx Midstream Services
  • Balcones Energy Holdings
  • Moriah Henry Partners
  • National Specialty Alloys
  • CPX Piceance, LLC
  • Tiburon Oil & Gas Partners, LLC
  • Ichthys Energy Partners
  • Oryx Midstream Services II
  • Layne Water Midstream
  • PetroEdge Energy III
  • Refinery Specialties, Inc.
  • Core Minerals Management II
  • Mavros Minerals II
  • Breitburn Energy Partners L.P.
  • Prime Downhole Manufacturing

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