Thomas M. Hamilton

Western Gas Resources, Inc. used to explore natural gas and natural gas liquids. It engaged in the exploration, development, production, gathering, processing, treatment, transportation and marketing of natural gas and natural gas liquids. It operated through four segments: Gas Gathering, Processing and Treating, Exploration and Production, Marketing and Transportation. Western Gas Resources, Inc. was founded in 1989 and was headquartered in Denver, CO.

HCC Insurance Holdings, Inc. engages in the provision of specialty insurance services. It serves the aerospace, agriculture, healthcare, and financial institutions. The company was founded by Stephen Lyndon Way in 1974 and is headquartered in Houston, TX.

Hercules Offshore, Inc. engages in the provision of shallow-water drilling and marine services to the oil and natural gas exploration and production industry. It operates through the following business segments: Domestic Offshore, International Offshore, and International Liftboats. The company was founded by Erland Peter Bassøe in July 2004 and is headquartered in Houston, TX.

Pennzoil-Quaker State Co. manufactures and markets lubricants and car care products. It offers automotive polishes, car wash products, automotive air fresheners, seat covers and other automotive accessories. The company is headquartered in Houston, TX.

FMC Technologies, Inc. provides technology solutions for the energy industry and other industrial markets. It engages in the designing, manufacturing and marketing of service technologically sophisticated systems and products, such as subsea production and processing systems, surface wellhead systems, high pressure fluid control equipment, measurement solutions and marine loading systems for the oil and gas industry. The firm operates through the following segments: Subsea Technologies, Surface Technologies and Energy Infrastructure. The Subsea Technologies segment designs and manufactures systems and provides services to oil and gas companies involved in deepwater exploration and production of crude oil and gas. The Surface Technologies segment designs and manufactures systems and provides services to oil and gas companies involved in land and offshore exploration and production of crude oil and gas. It also designs, manufactures and supplies technologically advanced high pressure valves and fittings for oilfield service companies. The Energy Infrastructure segment manufactures and supplies liquid and gas measurement and transportation equipment and systems to customers involved in the production, transportation and processing of crude oil, natural gas and petroleum-based refined products. The company was founded in November 2000 and is headquartered in Houston, TX.

TODCO provides contract oil and gas drilling services. It operates drilling rigs that consists inland barge rigs, jackup rigs, submersible rigs, platform rig, and land rigs located in shallow and inland waters of the United States, Angola, Colombia, Mexico, Trinidad, and Venezuela. The firm also operates inland tugs, offshore tugs, crew boats, deck barges, shale barges, spud barges, and offshore barges. The company was founded in 1997 and is headquartered in Houston, TX.