W. Yandell Rogers

Quicksilver Resources, Inc. was engaged in the acquisition, exploration, development and production of onshore oil and gas in North America. It operated through the Midstream and Exploration & Production segments. The Midstream segment provided natural gas gathering and processing services. The Exploration and Production segment focused on oil and natural gas industry. The company was founded in 1997 and was headquartered in Chester, OH.

Maverick Natural Resources LLC engages in the business of acquisition, exploitation, and development of oil and gas properties. Its assets consist of producing and non-producing crude oil, and natural gas reserves. The company was founded on March 23, 2006 and is headquartered in Houston, TX.

Part of Maverick Natural Resources LLC, BreitBurn GP LLC focuses on the acquisition, exploitation and development of oil and gas properties. The company is based in Los Angeles, CA. The company was founded by Randall Hart Breitenbach, Halbert S. Washburn. Halbert S. Washburn has been the CEO since incorporation.

Part of ARC Document Solutions, Inc., Ridgway's, Inc. provides digital imaging services. The company is based in Houston, TX. Ridgway's was acquired by ARC Document Solutions, Inc. on September 11, 2000.