Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Brent field is an oil field located in the East Shetland Basin 186 kilometres (116 mi) north-east of Lerwick, Shetland Islands, Scotland at the water depth of 140 metres (460 ft). The field operated by Shell UK Limited was once one of the most productive parts of the UK's offshore assets but is now nearing the end of its useful life.Shell initially named all of their UK oil fields after waterbirds in alphabetical order by discovery - Auk, Brent, Cormorant, Dunlin, Eider, Fulmar and so on. Brent refers to the Brent Goose, although it is also an acronym for the members of the Jurassic Brent formation that make up the field: Broom, Rannoch, Etive, Ness and Tarbert (in turn named after features in the Scottish Highlands).