T. Michael Dossey

Frontier Oil Corp. is an energy company, which is engaged in crude oil refining and wholesale marketing of refined petroleum products. The company operates refineries in Cheyenne, Wyoming and El Dorado, Kansas. Frontier Oil purchases crude oil to be refined and markets the refined petroleum products produced, including various grades of gasoline, diesel fuel, jet fuel, asphalt, chemicals and petroleum coke. The Cheyenne Refinery has a permitted crude oil capacity of 52,000 bpd and markets its refined products primarily in the Eastern slope of the Rocky Mountain region, which encompasses Eastern Colorado, Eastern Wyoming and Western Nebraska. It has a coking unit, which allows the refinery to process heavy crude oil for use as a feedstock. The El Dorado Refinery is in the Plains States and the Rocky Mountain region with crude oil capacity of 135,000 bpd. It markets gasoline and diesel in Denver and throughout the Plains States. Frontier Oil also owns Ethanol Management Co., a products terminal and blending facility located near Denver, Colorado. The company was founded in 1949 and is headquartered in Houston, TX.

Saudi Petrochemical Co. produces petrochemicals. Its products include Ethylene, Crude Industrial Ethanol, Styrene, Caustic Soda, Ethylene Dichloride and MTBE. The company was founded on June 27, 1980 and is headquartered in Jubail, Saudi Arabia.

Shell Deer Park Refining Co. is a joint venture company that manufactures oil refineries. The company is based in Deer Park, TX.

Equilon Enterprises LLC engages in the provision of refining, marketing, and transportation services for gasoline and other petroleum products to consumer and business-to-business customers in automotive, commercial, and industrial sectors. It also offers lubricants and petroleum transportation solutions. The company is headquartered in Houston, TX.