On the 24th September 1910, Samuel Williams sold the freehold of one acre of land to Willey & Co. Ltd., Gas Engineers of Exeter for £300. This was part of Esciranoliucha and Dolefawr Farms. The gasworks featured on the 1905 OS map, which suggests, construction started earlier than 1910. c1910, a gas supply was commenced by Willey & Co., who had built the works themselves, laid the mains and no doubt made the meters. In 1914 annual gas production was 1,882,100 cu.ft. from 226 tons of coal, with 4.5 miles of mains. The local Manager was W. J. Rippin, but all other matters were handled by the owners in Exeter. In 1949 the annual gas production was 4m cu.ft. Willey & Co. continued to operate this business until nationalisation, as they did at Kidwelly. In 1952 the “Gas World Year Book”, showed that Llanwrtyd Wells was manufacturing 3 m cu.ft. of gas using horizontal retorts and J.R. Young was the manager. The former Manager's house was sold on the 2nd January 1976. The last gasholder was removed not long before October 1983 and six 2-ton LPG tanks were then placed immediately east of the holder base. There were already four 2-ton tanks and a Calorimeter Kiosk, so presumably the town had been converted to straight LPG. The gasworks were visible on the 1904 to 1899 OS maps.