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 7,212 kilometres of overhead lines; 2,280 kilometres of underground cables; and 347 substations in England and Wales, as well as Scottish electricity transmission systems. The UK Gas Transmission segment owns and operates gas transmission systems that include approximately 7,660 kilometres of high-pressure pipes; and 24 compressor stations connecting to 8 distribution networks in Great Britain, 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 distribut