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TETRA Technologies, Inc. is one of the leading companies in the Energy & Utilities sector.
We are the premier global supplier of innovative circulating fluidized bed (CFB) technology providing value to our customers.
Basic Energy Services offers a diverse number of services to oil drilling and natural gas producing companies in the U.S.
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.
HKN or Harken Oil & Gas is a Southlake, TX-based company in the Energy and Utilities sector.