The Williams Companies, Inc.WMB

The Williams Companies operates extensive energy infrastructure across the U.S., managing 30,000 miles of pipelines, 29 processing facilities, and 7 fractionation plants. Operations span four segments: Transmission & Gulf of Mexico (Transco/Northwest pipelines), Northeast G&P (Marcellus/Utica shale gathering/processing), West (Rocky Mountain, Barnett, Eagle Ford, Haynesville, and Mid-Continent basins), and Gas & NGL Marketing Services, which provides wholesale trading, storage, and risk management. Established in 1908.