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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.
R.J.V. Gas Field Services is a Vegreville, AB-based company in the Energy & Utilities sector.
Frontier Energy Services is a Tulsa, OK-based company in the Energy and Utilities sector.
Through the combined strength of our assets in North America, we are dedicated to building the energy systems of the future.
Petroleum Solutions Inc is a Mcallen, TX-based company in the Energy & Utilities sector.