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Halliburton Company is an American multinational corporation. One of the worlds largest oil field service companies, it has operations in more than 70 countries.
BMB Fuel Consulting Services is a Ottawa, ON-based company in the Energy & Utilities sector.
Celart is a Novato, CA-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.
Perpetual Energy Inc. is a Calgary, AB-based company in the Energy & Utilities sector.