Clariant Corp

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.

Southwestern Energy Company, founded in 1929, explores, produces and distributes natural gas and oil throughout the United States, including Arkansas, Texas, Louisiana, New Mexico, and Oklahoma. The company conducts its exploration and production activities through its wholly owned subsidiaries, Southwestern Energy Production Company and SEECO. It has oil drilling operations in the Arkoma Basin and East Texas, and exploration facilities in New Mexico. The company s subsidiary, Arkansas Western Gas Company, distributes and transmits natural gas to more than 1 million residential, commercial and industrial customers in northern Arkansas. It also provides natural gas storage and transportation facilities to third-party clients. Southwestern Energy Company is headquartered in Houston.

Citation Oil & Gas Corp., is a privately-held independent oil and gas acquisition, development, and production company. The company was founded in 1981, and today, Citation and its equity partners have oil and gas assets that are comprised of approximately 10,300 wells in over 325 separately designated fields. The company's assets are located exclusively in the onshore United States, with concentrated positions in the Permian Basin, Rocky Mountain and Southern Oklahoma Regions. In addition to its oil and gas operations, Citation also is involved in the crude oil marketing business through its wholly owned subsidiary, Citation Crude Marketing. Citation has 386 employees and is headquartered in Houston. The company also has regional offices located in Houston, Midland, Texas, Gillette, Wyo., and Oklahoma City, Okla. From these locations Citation conducts operations in Colorado, Illinois, Kansas, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Utah and Wyoming.