Walter J. Bennett

Northwest Pipeline LLC owns and operates an interstate pipeline system for the mainline transmission of natural gas. It provides natural gas transportation services for markets in Washington, Oregon, Idaho, Wyoming, Nevada, Utah, Colorado, New Mexico, California and Arizona, either directly or indirectly through interconnections with other pipelines. The company was founded in 1965 and is headquartered in Salt Lake City, UT.

Boardwalk Pipeline Partners LP provides transportation, storage, gathering and processing services for natural gas and natural gas liquids. It gathers, processes, and transports natural gas and natural gas liquids. The company was founded in November 2005 and is headquartered in Houston, TX.

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.

WPZ GP LLC owns, operates, develops and acquires natural gas gathering systems and other midstream energy assets. The company is headquartered in Oklahoma City, OK.

Caiman Energy II LLC engages in the provision of natural gas energy services. The company was founded by Danny L. Thompson, Jack M. Lafield, Stephen L. Arata, and Richard D. Moncrief in 2012 and is headquartered in Dallas, TX.

Blue Racer Midstream LLC provides natural gas gathering, compression, treating, processing and transportation services, natural gas liquids fractionation, and transportation services. It gathers, stabilizes, and transports condensate. The company was founded in December 2012 and is headquartered in Dallas, TX.