Curtis Harrell

Citation Oil & Gas Corp. engages in acquisition, development, and production of oil and gas. The company was founded by Forrest E. Harrell, Sr. in 1981 and is headquartered in Houston, TX.

Young Presidents Organization (YPO) is a professional organization of chief executives based in Houston. YPO operates to connect business leaders from around the world, providing them with resources and opportunities to learn, grow, and lead their companies to success.

Carlile Bancshares, Inc. engages in investing in depository institutions. Its activities include purchasing and operating distressed banks, as well as direct acquisitions from the Federal Deposit Insurance Corporation (FDIC). The company was founded by Tom Nichols and Don Cosby in 2009 and is headquartered in Fort Worth, TX.

Beckman Production Services LLC provides oil and gas production maintenance and support services. The company was founded was founded on January 21, 2003 and is headquartered in Kalkaska, MI.

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.

Part of Enron Dissolution Corp., Enron Capital & Trade Resources Corp. explores oil and gas. The private company is based in Minneapolis, MN.