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Parsley Energy, Inc. is a holding company. The Company is an independent oil and natural gas company. The Company focuses on the acquisition, development and exploitation of unconventional oil and natural gas reserves in the Permian Basin. The Permian ...
Hard Rock Exploration Inc is a Charleston, WV-based company in the Energy and Utilities sector.
Marathon Oil Corporation (NYSE: MRO) is an integrated international energy company engaged in exploration and production, oil sands mining, integrated gas, and refining, marketing and transportation.
DeGolyer and MacNaughton is a Dallas, TX-based company in the Energy and Utilities sector.