Occidental refinery Canvey Island operate, and that the 1973 URL refinery planning permission should be allowed to stand. However, by this time the oil crises of 1973 and 1980 had affected the viability of the refinery and URL undertook not further work on the site. Shell Haven refinery Coryton refinery Kent refinery 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
Tamar–Tavy Estuary Seaweeds, green algae and communities of polychaete worms are all found in the estuary system; near Calstock is found the shrimp "Palaemon longirostris", which has been recorded in only two other estuaries in Britain. The estuary is also one of only two sites in the UK where the fish, allis shad, spawn. Other larger animals found in undisturbed parts of the SSSI include the European otter, the common kingfisher and dormice. Tamar–Tavy Estuary The Tamar–Tavy Estuary is a Site of Special Scientific Interest (SSSI) covering the tidal estuaries of the River Tamar and the River Tavy on the border between