The North Thames Gas Board was established on 1st May 1949 as part of the nationalised gas industry, reporting the Ministry of Fuel and Power. It was made up of the operations of the former privatised gas suppliers in the region including Ascot District Gas and Electricity Company (only the gas operations were acquired: the electricity undertaking had become part of the Southern Electricity Board in 1948), Chertsey Gas Consumers' Company Ltd, Commercial Gas Company, Gas Light and Coke Company, Hornsey Gas Company, Lea Bridge District Gas Company, North Middlesex Gas Company, Romford Gas Company, Slough Gas and Coke Company, Southend-on-Sea County Borough Corporation, Uxbridge, Maidenhead, Wycombe and District Gas Company, and Windsor Royal Gaslight Company. On 31st December 1972 it would be dissolved and became part the British Gas Corporation.