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Marathon Oil Corporation (NYSE: MRO) is an integrated international energy company engaged in exploration and production, oil sands mining, integrated gas, and refining, marketing and transportation.
M-I SWACO, A Schlumberger Company is a Houston, TX-based company in the Energy and Utilities sector.
Retif Oil & Fuel is a Harvey, LA-based company in the Energy and Utilities sector.
Red Arrow Energy, LLC is a Houston, TX-based company in the Energy & Utilities sector.