NGG vs WMB

National Grid Transco PLC National Grid PLC (NEW)

National Grid plc transmits and distributes electricity and natural gas. It operates through UK Electricity Transmission, UK Gas Transmission, US Regulated, and National Grid Ventures (NGV) and Other segments. The UK Electricity Transmission segment owns and operates electricity transmission networks, which comprise approximately 7,236 kilometers of overhead lines. The UK Gas Transmission segment owns and operates gas transmission systems, as well as third-party independent systems and liquefied natural gas (LNG) storage facilities. The US Regulated segments owns and operates transmission facilities across upstate New York, Massachusetts, New Hampshire, Rhode Island, and Vermont; and electricity distribution networks in upstate New York, Massachusetts, and Rhode Island. Its assets comprise 14,439 kilometers of overhead lines; an electricity distribution network of approximately 117,498 circuit miles; and a network of approximately 57,551 kilometers of gas pipeline. The NGV and Other segment engages in the energy metering business; transporting renewable energy long distances through its electricity interconnectors; and storing LNG, as well as commercial property and insurance activities in the United Kingdom. The company was founded in 1990 and is headquartered in London, the United Kingdom.

Williams Companies Inc.

The Williams Companies, Inc., together with its subsidiaries, operates as an energy infrastructure company primarily in the United States. It operates through Transmission & Gulf of Mexico, Northeast G&P, and West segments. The Transmission & Gulf of Mexico segment comprises Transco and Northwest natural gas pipelines; and natural gas gathering and processing, and crude oil production handling and transportation assets in the Gulf Coast region. The Northeast G&P segment engages in the midstream gathering, processing, and fractionation activities in the Marcellus Shale region primarily in Pennsylvania and New York, and the Utica Shale region of eastern Ohio. The West segment comprises gas gathering, processing, and treating operations in the Rocky Mountain region of Colorado and Wyoming, the Barnett Shale region of north-central Texas, the Eagle Ford Shale region of South Texas, the Haynesville Shale region of northwest Louisiana, and the Mid-Continent region, which includes the Anadarko, Arkoma, and Permian basins; and natural gas liquid (NGL) and natural gas marketing operations, as well as storage facilities. The company owns and operates 30,000 miles of pipelines, 34 processing facilities, 9 fractionation facilities, and approximately 23 million barrels of NGL storage capacity. The Williams Companies, Inc. was founded in 1908 and is headquartered in Tulsa, Oklahoma.