Edward Gary Roth

Sooner Holdings, Inc. owns the Syntroleum Process for Fischer-Tropsch (FT) conversion of synthesis gas derived from biomass, coal, natural gas and other carbon-based feedstocks into liquid hydrocarbons, the Synfining Process for upgrading FT liquid hydrocarbons into middle distillate products such as synthetic diesel and jet fuels, and the Bio-Synfining technology for converting animal fat and vegetable oil feedstocks into middle distillate products such as renewable diesel and jet fuel. The company is focused on siting, engineering and constructing a plant that produces clean renewable synthetic diesel and jet fuel using low grade fats and greases as feedstock. It was founded by Kenneth L. Agee on November 15, 1984 and is headquartered in Tulsa, OK.

Petrofac, Inc. provides engineering services. The company also offers project management, construction, process design, procurement and fabrication services. Petrofac is located in Tyler, TX

Part of Kinder Morgan, Inc., Zilkha Energy Co. is a company that explores for and drills natural oil and gas. The company is based in Houston, TX. Zilkha Energy was acquired by Sonat, Inc. on January 30, 1998 for $1,014.65 million.