Weatherford International

With an estimated 2.3 billion barrels of proved reserves, Anadarko Petroleum Corporation is one of the largest independent oil exploration and production companies in the world. The company also markets approximately 3 billion cubic feet of natural gas per day throughout the United States and Canada. Anadarko s operational focus in North America extends from the Gulf of Mexico up through the Canadian Rockies and onto the north slope of Alaska. Its international operations are focused on major positions in Algeria, Venezuela and Qatar, as well as exploration or production operations in several other countries. James T. Hackett has been the chief executive officer of Anadarko Petroleum for more than two years. He has been with the petroleum and natural gas company for over two years. Hackett earned a BS degree from the University of Illinois, and a MBA from Harvard. Headquartered in The Woodlands, Texas, Anadarko Petroleum Corporation employs approximately 3,400 people in locations throughout the world.

TETRA Technologies is a geographically diversified oil and gas services firm. The company provides niche products and services focused on well completion, compression-based production enhancement and decommissioning. It produces, markets and distributes calcium chloride and brominated products for the energy industry. TETRA Technologies capabilities include production testing, rig services, wellhead compression and well abandonment. The company serves multinational exploration and production organizations, large independents and small producers. It operates on five continents. TETRA Technologies primary subsidiary, Maritech Resources, evaluates mature oil and gas properties to determine economic benefits and future decommissioning liabilities. The company was established in 1982 and is headquartered in The Woodlands, Texas.

Nabors Drilling USA is one of the largest drilling contractors in the United States, with a total fleet of nearly 400 land rigs. Nabors has achieved this position through a continuous program of investment and strategic acquisition, which began more than 10 years ago. The company is a subsidiary of Nabors Industries, which owns and operates nearly 600 land drilling and 970 land workover and well servicing rigs throughout the world. Offshore, Nabors operates more than 40 platforms, 17 jack-ups and three barge rigs in the domestic and international markets. It also markets 30 marine transportation and support vessels, primarily in the Gulf of Mexico. Nabors Drilling USA has a location in Houston.