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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.
Cass City Oil is a Cass City, MI-based company in the Energy and Utilities sector.
Alpetro Resources Ltd. is a Calgary, AB-based company in the Energy & Utilities sector.
Adams Resources & Energy, Inc. (ARE), along with its subsidiaries, are engaged in the business of marketing crude oil, natural gas and petroleum products, tank truck transportation of liquid chemicals, and oil and gas exploration and production. Its
Absolute Completion Technology is a Calgary, AB-based company in the Energy & Utilities sector.