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Company Description

Contact Info

One Williams Center

Tulsa, OK 74172

United States

Phone: 918-573-2000


The Williams Companies, Inc., through its subsidiaries, operates as an energy infrastructure company. The company focuses on connecting North America’s hydrocarbon resource plays to markets for natural gas, natural gas liquids (NGLs), and olefins. The company’s operations are located principally in the United States, and span from the deepwater Gulf of Mexico to the Canadian oil sands. As of December 31, 2015, the company’s interstate gas pipelines, midstream, and olefins production interests were largely held through its investment in Williams Partners L.P. (WPZ). The company owns the general partner interest and a 58 percent limited-partner interest in WPZ. Segments The company’s segments include Williams Partners, Williams NGL & Petchem Services, and Other. Williams Partners segment This segment includes the company’s consolidated master limited partnership, WPZ, which includes gas pipeline and midstream businesses. The gas pipeline business includes interstate natural gas pipelines and pipeline joint project investments. The midstream business provides natural gas gathering, treating, processing and compression services; NGL production, fractionation, storage, marketing and transportation; deepwater production handling and crude oil transportation services; an olefin production business and includes various wholly owned and partially owned subsidiaries and joint project investments. The company’s Canadian midstream operations include an oil sands offgas processing plant near Fort McMurray, Alberta, an NGL/olefin fractionation facility, and the Boreal Pipeline. Gas Pipeline Business Williams Partners' gas pipeline businesses consist primarily of Transcontinental Gas Pipe Line Company, LLC (Transco) and Northwest Pipeline LLC (Northwest Pipeline). The company’s gas pipeline business also holds interests in joint venture interstate and intrastate natural gas pipeline systems, including a 50 percent equity-method investment in Gulfstream Natural Gas System, L.L.C. (Gulfstream) and a 41 percent interest in Constitution Pipeline Company, LLC (Constitution) (a consolidated entity), which is under development. Transco and Northwest Pipeline own and operate a combined total of approximately 13,600 miles of pipelines with a total annual throughput of approximately 4,136 TBtu of natural gas and peak-day delivery capacity of approximately 15.4 million dekatherms (MMdth) of natural gas. Transco Transco is an interstate natural gas transmission company that owns and operates a 9,700-mile natural gas pipeline system, which is regulated by the Federal Energy Regulatory Commission (FERC), extending from Texas, Louisiana, Mississippi and the offshore Gulf of Mexico through Alabama, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania and New Jersey to the New York City metropolitan area. The system serves customers in Texas and 12 southeast and Atlantic seaboard states, including major metropolitan areas in Georgia, North Carolina, Washington, D.C., Maryland, New York, New Jersey, and Pennsylvania. Pipeline system and customers As of December 31, 2015, Transco’s system had a mainline delivery capacity of approximately 6.4 MMdth of natural gas per day from its production areas to its primary markets, including delivery capacity from the mainline to locations on its Mobile Bay Lateral. Using its Leidy Line along with market-area storage and transportation capacity, Transco could deliver an additional 5.1MMdth of natural gas per day for a system-wide delivery capacity total of approximately 11.5 MMdth of natural gas per day. Transco’s system includes 45 compressor stations, 4 underground storage fields, and a liquefied natural gas (LNG) storage facility. Compression facilities at sea level-rated capacity total approximately 1.8 million horsepower. Transco’s major natural gas transportation customers are public utilities and municipalities that provide service to residential, commercial, industrial and electric generation end users. Shippers on Transco’s system include public utilities, municipalities, intrastate pipelines, direct industrial users, electrical generato


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