Tullow Oil plc is a global oil and gas exploration company headquartered in London, United Kingdom. The Company was founded by Aidan Heavey in 1985 in the Republic of Ireland as a gas exploration business operating in Senegal.
Its primary listing is on the London Stock Exchange and it is a constituent of the FTSE 100 Index and it is the 30th-largest company on the London Stock Exchange. Tullow Oil operates mainly in Europe, Africa and Asia, and in 2010 produced 58,100 barrels of oil equivalent per day. The company reported an operating profit of 189 million pounds.