Harold D. Carter

Abraxas Petroleum Corp. engages in the acquisition, exploration, development, and production of crude oil and natural gas. It focuses primarily on the development of conventional and unconventional resources in its primary operating areas in the Rocky Mountains, South Texas, Powder River Basin, and Permian Basin. The company was founded by Robert L.G. Watson in 1977 and is headquartered in San Antonio, TX.

Brigham Exploration Co. is an independent exploration, development and production company. The company engages in the exploration and development of onshore crude oil and natural gas reserves. Its exploration and production activities are performed primarily in the onshore Texas Gulf Coast, the Anadarko Basin of northwest Oklahoma, the Texas Panhandle and west Texas. Brigham Exploration was founded by Ben M. Brigham in 1990 and is headquartered in Austin, TX.

EPL Oil & Gas, Inc. operated as an oil and natural gas exploration and production company. It was focused on acquiring and developing assets on state and federal waters offshore Louisiana in the United States Gulf of Mexico shelf region. The company was founded on January 29, 1998 and it was headquartered in Houston, TX.

Longview Energy Co. produces oil and gas. The company is headquartered in Dallas, TX.

Brigham Resources LLC provides oil and gas services. The firm focuses on using technologies to identify and develop unconventional liquids rich resource plays. The company was founded by Ben M. Brigham and Eugene B. Shepherd in 2012 and is headquartered in Austin, TX.

American Association of Professional Landmen consists of landmen and land-related persons throughout affiliated local associations in the United States and in Canada. It promotes standards of performance for all land professionals, which encourage responsible stewardship of energy and mineral resources. The company was founded on March 17, 1987 and is headquartered in Fort Worth, TX.

Texas Scottish Rite Hospital for Children provides healthcare services. It offers pediatric orthopedics, dyslexia and other medical services. The company was founded in 1921 and is headquartered in Dallas, TX.

The Dallas Petroleum Club operates petroleum clubs. The private company is based in Dallas, TX.