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Marathon Oil Corporation (NYSE: MRO) is an independent international exploration and production company. Based in Houston, Texas, Marathon Oil had net proved reserves at the end of 2011 of 1.8 billion barrels of oil equivalent in North America, Europe and Africa.
Hill Petroleum is a Arvada, CO-based company in the Energy and Utilities sector.
Rose Rock Midstream is a Tulsa, OK-based company in the Energy and Utilities sector.
Wenatchee Petroleum Company is a Wenatchee, WA-based company in the Energy and Utilities sector.
RAAM Global Energy Company is a Lexington, KY-based company in the Energy and Utilities sector.