The Cwmbran & Pontnewydd Gas Co. Ltd. was formed in 1874, although the date was given as 1876 in the Gas and Water Companies' Directory and Statistics 1900. These gasworks were operated by the Cwmbran & Pontnewydd Gas Co between 1876-1937. In 1883, J. C. Hill, was the Chairman. T. Dyne Steel, C. E., was the Engineer (as at Caldicot), J. Butcher was the Manager and C. A. Lonsdale was the Secretary. In 1900 the annual gas production was 12,500,000cu.ft. of 15cp gas from 1,250 tons of coal. W. P. James was the Chairman, T. H. White was the Engineer & Manager and W. Clark the Secretary, the company supplies gas to Cwmbran, Pontnewydd and Oakfields. (The Gas and Water Companies' Directory and Statistics). By 1912 there was a CWG plant, built by R&J Dempster and carburetting on Benzol. In 1936 the works were acquired by the Pontypool Gas & Water Co. Ltd.; the agreement being signed on 10/1/1936. In 1938, a new 750,000 cu.ft. holder was commissioned. c.1942-43 A CWG plant was installed, and production resumed as necessary, supplies of coke oven gas from Blaenavon were uncertain and gas demand increased heavily during the war years. In 1946 an additional 8" main was laid to Cwmbran from Pontypool Clarence Street. Soon this was extended to the new British Nylon Spinner's works at Mamhilad. The main was extended to Abercarn under a 1946 bulk-supply agreement. In 1949 the site area was 2,560 sq. yds. After Panteg (Pontypool) gasworks opened, Cwmbran's CWG plant was stand-by only. The gasworks were visible on the 1881 to 1895 OS maps. The 750,000cu.ft. tank was present until at least mid-late 80s.