Cadent Gas is a British regional gas distribution company that owns, operates and maintains the largest natural gas distribution network in the United Kingdom, transporting gas to 11 million homes and businesses across North West England, West Midlands, East Midlands, East of England and North London. The company does not produce or own the gas that passes through their pipeline networks but 50% of UK gas customers are served by their pipeline system. In 2017/18 Cadent Gas Limited replaced and improved 1,625 kilometres (1,010 mi) of mains pipe.