William Dozier

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

National Association of Corporate Directors provides online and print information services to directors of public companies. It offers in-boardroom education, evaluation, governance reviews, board composition and succession planning, board recruitment, ongoing advisory, insights, and analytics services. The company was founded in 1977 and is headquartered in Arlington, VA.

Extex Consulting, Inc. operates as an oil and gas consulting firm. The company is headquartered in Gainesville, TX.

Pacific Asia Petroleum, Inc. is a US listed and headquartered corporation engaged in the business of oil & gas development, production and distribution in Pacific Rim countries, with an initial focus on developing a broad range of energy opportunities in China. The company's focus is on identifying and managing low-risk, high-return projects real opportunities in China and is a strategic partner with several global energy companies.

Vintage Petroleum, Inc. was a energy company. The company was engaged in the acquisition, exploitation and exploration of oil and gas properties and the marketing of natural gas and crude oil. The company was headquartered at Tulsa, OK.