The Williams Companies, Inc. owns and operates energy infrastructure that delivers natural gas. The Company's segments include Transmission, Power & Gulf; Northeast G&P; West, and Gas & NGL Marketing Services. Transmission, Power & Gulf segment is comprised of interstate natural gas pipelines and their related natural gas storage facilities including Transco, NWP, and MountainWest and a 50 percent equity-method investment in Gulfstream; and others. Northeast G&P segment is comprised of midstream gathering, processing, and fractionation businesses in the Marcellus Shale region primarily in Pennsylvania and New York, and the Utica Shale region of eastern Ohio, and others. West segment is comprised of gas gathering, processing, and treating operations in the Rocky Mountain region of Colorado and Wyoming, the Eagle Ford Shale region of south Texas, and others. Gas & NGL Marketing Services segment is comprised of NGL and natural gas marketing and trading operations.