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Private company

Lasmo

UK business based in London, founded in 19711

Lasmo plc was a British oil and gas exploration and production business. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.2 It ceased to exist in 2001.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1971Founded1
  • HeadquartersLondon1

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Lasmo plc was a British oil and gas exploration and production business. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.2

How it started

History

The Company was founded in 1971 as London and Scottish Marine Oil (LASMO) to explore the North Sea. It struck oil in the Ninian Field in 1974 and was first listed on the London Stock Exchange in 1977. In the early 1990s it expanded its operations into Indonesia, Algeria and Pakistan. It bought Ultramar plc in 1991 in a hostile takeover battle.

It successfully fought off a hostile bid from Enterprise Oil in 1994. It expanded into Venezuela in 1997 paying $453m for an interest in the Dacion Field. In 1999 it acquired Monument Oil & Gas for £460m.

In 2001 it was acquired by Eni, who successfully outbid an initial offer from Amerada Hess.

From Wikipedia’s article on Lasmo, shared under CC BY-SA 4.0.2

Timeline

  1. 2001Dissolved Dissolved1
  2. 1971Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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  2. 2