John T. McNabb

Warrior Energy Service Corp. was operating as a natural gas and oil well services company. It was providing cased-hole wireline and well intervention services to exploration and production companies. The company was offering logging services, which includes cement bond logging, production logging & other measurements; pipe recovery services; perforating and mechanical services, plugging and abandonment services. The company was founded in 1984. Warrior Energy Service was located in Houston, TX.

Part of Chesapeake Energy Corp., Hugoton Energy Corp. is a private company that explores for and produces oil and gas. The company is based in Wichita, KS. The company was founded by Floyd C. Wilson, William M. Johnson. Hugoton Energy was acquired by Chesapeake Energy Corp. on March 11, 1998 for $174.08 million.

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.

Willbros Group, Inc. engages in the provision of engineering and construction services to the oil, gas, refinery, petrochemical, and power industries. The company was founded by Miller Williams and David Williams in 1908 and is headquartered in Houston, TX.

Continental Resources, Inc. is an independent oil producer engaged in the exploration, development, and production of crude oil and natural gas. The firm's operations include horizontal drilling and protecting groundwater. The company was founded by Harold G. Hamm in 1967 and is headquartered in Oklahoma City, OK.

Bankers Trust Co. is an asset management headquartered in Des Moines, Iowa. The firm was founded in 1917 and is a subsidiary of BTC Financial Corp. The firm serves as a trusted partner for individuals’ comprehensive financial planning, trust and fiduciary needs.

Founded in 1992 by John T. Nabb II, Growth Capital Partners LP is a merchant/investment banking and private equity firm headquartered in Houston, Texas. The firm works with both private and public middle-market companies that are based in North America. Their services include: company sales, private equity, recapitalizations, subordinated debt, MBOs, work-outs, restructurings, senior debt and valuations services

Hiland Partners LP is a midstream energy partnership engaged in purchasing, gathering, compressing, dehydrating, treating, processing and marketing natural gas and the fractionating, or separating, and marketing natural gas liquids. Hiland Partners also provides air compression and water injection services to Continental Resources, Inc., a publicly traded exploration and production company controlled by affiliates of Hiland Partners' general partner for use in its oil and gas secondary recovery operations. The company's operations are primarily located in the Mid-Continent and Rocky Mountain regions of the United States. In the Partnership's midstream segment, it connects the wells of natural gas and crude oil producers in its operating areas to its gathering systems, treats natural gas to remove impurities, processes natural gas for the removal of NGLs, fractionates NGLs into NGL products and provides an aggregate supply of natural gas and NGL products to a variety of transmission pipelines and markets. The company is headquartered in Enid, OK.