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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).

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

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