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Enterprise Oil

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Adapted from the English Wikipedia article Enterprise Oil, available under CC BY-SA 4.0Updated 30 November 2025
Enterprise Oil
Company typePublic company (formerly)
IndustryOil and gas exploration and production
Founded1983
Defunct2002
FateAcquired by Royal Dutch Shell
Headquarters
London
,
United Kingdom
Area served
United Kingdom, Ireland, mainland Europe, Brazil, Gulf of Mexico
Key people
Justin Welby (Group Treasurer 1984–1987)
ProductsOil and gas

Enterprise Oil was a prominent independent exploration and production firm headquartered in Europe, with principal operations across the United Kingdom, Ireland, mainland Europe, Brazil, and the Gulf of Mexico. It was formerly listed on the FTSE 100 Index prior to its acquisition by Royal Dutch Shell.

History

Founded in 1983, Enterprise Oil was created to manage the North Sea oil assets previously owned by the state-controlled British Gas plc. The company went public through a London Stock Exchange flotation in February 1984. In 1994, it launched a notable but ultimately unsuccessful attempt to take over Lasmo.

In 1996, Enterprise Oil discovered the Corrib gas field off the coast of Ireland, a venture later transferred to Shell that encountered considerable difficulties (refer to Corrib gas controversy). During its later period, the firm significantly expanded its investments in Brazilian oil projects.

Among its notable executives was The Most Reverend Justin Welby, who held the position of Group Treasurer from 1984 until 1987 and is now Archbishop of Canterbury.

In 2002, Enterprise Oil was purchased by Royal Dutch Shell for £3.5 billion.

Operations

Enterprise Oil maintained interests in approximately 41 fields, predominantly located in the North Sea, and achieved at least one major find in the Gulf of Mexico. While initially headquartered in London, it continued to keep its main office there but transferred its UK operational base to Aberdeen in 1998.