Christopher G. Swanberg

Atlantic Richfield Co. provides oil and gas extraction and production services . The firm's exploration and production operations are focused primarily in the Gulf of Mexico and the midcontinent in the United States, the United Kingdom North Sea, Indonesia, China and Algeria. The company was incorporated on April 15, 1985 and is headquartered in Warrenville, IL.

Coffeyville Resources LLC supplies petroleum and nitrogen fertilizer products. The company is headquartered in Sugar Land, TX.

Part of Kelso & Cos., Inc., Coffeyville Acquisition LLC is a company based in Kansas City, KS. Coffeyville Acquisition LLC was founded in 2005. John J. Lipinski has been the CEO of the company since 2005.

Houston Refining LP engages in providing oil refinery services. Its products include gasoline, diesel, benzene, paraxylene and orthoxylene. . The company was founded in 2006 and is headquartered in Dallas, TX.

CVR Refining LP operates as oil and gas refinery and logistics services. It operates coking medium-sour crude oil refinery in Coffeyville, Kansas and crude oil refinery in Wynnewood, Oklahoma. The company was founded in September 2012 and is headquartered in Sugar Land, TX.

Sage Environmental Consulting LP provides environmental consulting services. It assists clients with regulatory compliance, permitting and remediation for environmental programs and media. The firm addresses issues of water quality, hazardous materials and petroleum storage. The company was founded by Steven Mark Probst in 1998 and is headquartered in Austin, TX.