Clifford C. Rupnow

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.

Quicksilver Gas Services LP engaged in the business of gathering and processing natural gas produced primarily from the Barnett Shale formation.The company's assets include Cowtown Pipeline, and two natural gas processing facilities in Hood County, Texas, referred to as the Cowtown Plant and the Corvette Plant. KGS also owns a gathering system and a gas compression facility in eastern Tarrant County, Texas, referred to as the Lake Arlington Dry System.The company was founded in 2004 and is headquartered in Forth Worth, TX.

Williston Basin Interstate Pipeline Co. provides natural gas transportation, storage, and gathering services. Its services are provided through a pipeline system located in Montana, North Dakota, South Dakota, and Wyoming. The company is located in Bismarck, ND.

Part of Energy Transfer LP, Crestwood Gas Services GP LLC is a company that processes natural gas and natural gas liquids. The company is based in Fort Worth, TX. Robert G. Phillips has been the CEO of the company since 2010. Crestwood Gas Services GP was acquired by Crestwood Equity Partners LP, a subsidiary of Energy Transfer LP from Crestwood Holdings Partners LLC on June 19, 2013 for $843.53 million.