Thomas R. Hix

Cameron International Corp. designs, manufactures, markets and services equipment used by the oil and gas industry and industrial manufacturing companies. It provides flow equipment products, systems and services to worldwide oil, gas and process industries. The company was founded by Harry Cameron and James Abercrombie in 1920 and is headquartered in Houston, TX.

Rowan Cos., Inc. engages in the provision of contract drilling services to the oil and gas industry. The company was founded by Charles Rowan and Archibald Rowan in 1923 and is headquartered in Houston, TX.

Health Care Service Corp. provides health and life insurance services. It operates through its divisions: Blue Cross and Blue Shield of Illinois, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of New Mexico, Blue Cross and Blue Shield of Oklahoma, and Blue Cross and Blue Shield of Texas. The company was founded by Justin Ford Kimball in 1929 and is headquartered in Chicago, IL.

El Paso Interim Corp. provides natural gas and related energy products in a safe, efficient and dependable manner. The company owns North America's interstate natural gas pipeline systems, which provides a stable base of earnings and cash flow and has a backlog of committed expansion projects. The company operates through three segments: Pipelines, Exploration and Production & Marketing. The Pipelines segment provides natural gas transmission, storage, and related services, primarily in the USA primarily through eight wholly or majority owned interstate pipeline systems and equity interests in two transmission systems. The Exploration and Production segment is engaged in the exploration for and the acquisition, development and production of oil, natural gas and NGL, in the US, Brazil and Egypt. The Marketing segment markets on behalf of its Exploration and Production segment and manages the price risks associated with its oil and natural gas production as well as manages remaining legacy trading portfolio. The company was founded by Paul Kayser in 1928 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.

Rowan Cos. Ltd. engaged in the provision of offshore contract drilling services to the oil and gas industry. It operates through the following segments: Deepwater, Jack-ups, and ARO. The Deepwater segment included ultra-deepwater drill ships. The Jack-ups segment consists of self-elevating jack-up rigs. The ARO segment owned, managed, and operated offshore drilling units in Saudi Arabia. The company was founded on October 11, 2011 and was headquartered in London, the United Kingdom.

The Western Co of North America, Inc. manufactures hydraulic fracturing tools for oil and gas wells. The firm offers pressure pumping and oilfield services for the petroleum industry. The company is located in Houston,TX.

Houston Zoo, Inc. engages in the operation and management of zoo. The firm operates as a conservation, education, and recreation organization dedicated to the reproduction, protection, and exhibition of animals in their habitats. It participates in programs that oversee the breeding of endangered animal species. The company was founded in 1922 and is headquartered in Houston, TX.