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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.
Heavy Co is a Lincoln, NE-based company in the Energy and Utilities sector.
Shuck Corp is a Indianapolis, IN-based company in the Energy and Utilities sector.
Albian Sands Energy Inc. is a Fort Mcmurray, AB-based company in the Energy and Utilities sector.
Gran Tierra Energy Inc. is an international oil and gas exploration and production company headquartered in Calgary, Canada, incorporated and traded in the United States and operating in South America. The Company currently holds interests in producing and prospective properties in Colombia, Brazil and Peru. The Company strategy is focused on establishing a portfolio of drilling opportunities to exploit undeveloped reserves to grow production, as well as undertaking exploration drilling to grow future reserves.