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Artex Oil Company is a Marietta, OH-based company in the Energy and Utilities sector.
Gulf Coast Energy is a Houston, TX-based company in the Energy and Utilities sector.
Northwest Propane Gas Co is a Dallas, TX-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.