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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.
Swift Services is a Ness City, KS-based company in the Energy and Utilities sector.
Deprisco Engineering Co is a Bartlesville, OK-based company in the Energy and Utilities sector.
Speedway is a Canton, OH-based company in the Energy and Utilities sector.
Munger Oil Information is a Joshua Tree, CA-based company in the Energy and Utilities sector.