Occidental refinery Canvey Island Occidental refinery Canvey Island The Occidental oil refinery was on Canvey Island, Essex, England. Located in the Thames Estuary, it was a partly-built, non-operational, six million tonne/year oil refinery planned and constructed by Occidental Refineries Limited in 1970–5 and demolished in 1996–7. It was also known as the Occidental Thames refinery. In 1970 Occidental Refineries Limited, a subsidiary of the American Occidental Petroleum Corporation, applied to build an oil refinery on a 323 acre (130 ha) marshland site (51.5250°N 0.5333°E) on Canvey Island south of Furtherwick Road for the production of heavy fuel oils. Planning permission was refused by the
Canvey Island been discharged into the river by the means of seven sluices (later known as Commissioners Dykes). The completion of the work saw a considerable number of the Dutch engineers take land as payment for their work, and consequently settle on the island. Approximately one-third of Canvey's streets have names of Dutch origin. The coast of Canvey Island was host to the Chapman Lighthouse as briefly described in Joseph Conrad's novel "Heart of Darkness". It is believed that the peril of the mudflats below such shallow waters off the Canvey Island coast prompted the Romans to devise some form of beacon