Earl Krieg

Magnum Hunter Production, Inc. provides oil exploration and drilling services. The company also provides evaluation of geological and geophysical information. It provides services to non-operators and other industry partners. Magnum Hunter Production is headquartered in Irving, TX

Keystone Petroleum GP LLC develops low to moderate risk drilling projects and strategic acquisitions. The company was founded in November 2005 and is headquartered in Irving, TX.

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.

Cimarex Energy Co. is an independent oil and gas exploration and production company. Its activities include drilling, completing and operating wells. It operates through the following areas: Permian Basin, Mid-Continent, and Others in Oklahoma, Texas and New Mexico. The company was founded by F. H. Merelli in February 2002 and is headquartered in Denver, CO.

General Oil Co., Inc. provides trading services for acquisition and negotiation of physical liquid energy commodities. The firm trades for its system, physical crude, distillates, residual fuel oil, feedstock’s, LPG, lubricants, and asphalt. It also provides its clients and partners with trading services for the acquisition and negotiation of physical liquid energy commodities, including hedging, price risk management, financing, transportation, and storage. The company was founded in 1997 and is headquartered in New York, NY.

Gruy Petroleum Management Co. is engaged in extraction of petroleum products. The company is located in Irving, TX.

Part of Osaka Gas Co., Ltd., Edisto Resources Corp. explores and produces oil and gas. The company is based in Houston, TX. Edisto Resources was acquired by Forcenergy, Inc., part of Osaka Gas Co., Ltd. from December 07, 2000 on October 22, 1997 for $139.61 million.