Robert S. Purgason

EnLink Midstream Partners LP provides integrated midstream services across natural gas, crude oil, condensate, and NGL commodities. It operates through the following segments: Permian, Louisiana, Oklahoma, North Texas, and Corporate. The Permian segment covers the natural gas gathering, processing, and transmission activities and crude oil operations in the Midland and Delaware Basins in West Texas and Eastern New Mexico and crude operations in South Texas. The Louisiana segment consists of natural gas pipelines, natural gas processing plants, storage facilities, fractionation facilities, and NGL assets located in Louisiana and crude oil operations in ORV. The Oklahoma segment refers to the natural gas gathering, processing, and transmission activities, and crude oil operations in the Cana-Woodford, Arkoma-Woodford, northern Oklahoma Woodford, STACK, and CNOW shale areas. The North Texas segment comprises of natural gas gathering, processing, and transmission activities in North Texas. The Corporate segment are unconsolidated affiliate investments in the Cedar Cove JV in Oklahoma, ownership interest in GCF in South Texas, derivative activity, and general corporate assets and expenses. The company was founded on July 12, 2002 and is headquartered in Dallas, TX.

Part of EnLink Midstream LLC, EnLink Midstream Operating LP is a leading, American integrated midstream company that provides integrated energy infrastructure services for natural gas, crude oil, condensate, and NGLs, as well as CO2 transportation for carbon capture and sequestration (CCS). The private company's diverse geographic footprint and strong financial foundation allow them to offer large-scale, cash-flow-generating asset platforms for integrated midstream services across various commodities.

Williams Partners LP owns, operates, develops & acquires natural gas gathering system and energy assets. It focuses on natural gas gathering, the first segment of midstream energy infrastructure that connects natural gas produced at the wellhead to third-party takeaway pipelines. The company was founded in 2005 and is headquartered in Tulsa, OK.

Access Midstream GP LLC operated, developed and acquired natural gas gathering system and energy assets. The company was headquartered in Oklahoma City, OK.

Crosstex Energy, Inc. engages in the gathering, transmission, processing and marketing of natural gas and natural gas liquids through its subsidiaries. It connects the wells of natural gas producers in the geographic areas of its gathering systems in order to gather for a fee or purchase the gas production, processes natural gas for the removal of natural gas liquids, transports and ultimately provides natural gas and natural gas liquids to a variety of markets. The company operates through three reportable segments consisting of Natural Gas Gathering, Processing and Transmission operations located in North Texas, Pipelines and Processing plants located in Louisiana and South Louisiana Processing and Natural Gas Liquid Assets. The Natural Gas Gathering, Processing, Fractonation and Transmission segment includes the drilling of wells into gas bearing rock formations and the pipelines receive natural gas from mainline transmission pipelines, processing plants and gathering systems. The Pipelines and Processing Plants segment includes on-system processing Plants. The South Louisiana Processing And Natural gas Liquid segment includes eunice processing plant and fractionation facility, riverside fractionation plant, cajun sibon pipeline system and napoleonville storage facility. The company was founded on April 28, 2000 and is headquartered in Dallas, TX.