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Williams Petroleum Consulting is a Boston, MA-based company in the Energy and Utilities sector.
Mid Continent Well Logging is a company that provides mud logging and formation evaluation services to the oil and gas industry.
OMNI Labs is a Houston, TX-based company in the Energy and Utilities sector.
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.