Tullow Oil plc
Tullow Oil plc (LSE: TLW) is a global oil and gas exploration company headquartered in London, United Kingdom. It has interests in over 85 licences across 23 countries and in 2010 produced 58,100 barrels of oil equivalent per day. Its largest activities are in Africa, where it has discovered new oil provinces in Ghana, Uganda and Kenya, produces oil and gas in six countries and has exploration projects in 13 countries. As at 30 June 2010 it had total proven commercial reserves of 290.5 million barrels (46,190,000 m3) of oil equivalent.
Its primary listing is on the London Stock Exchange and it is a constituent of the FTSE 100 Index. It had a market capitalisation of approximately £12.5 billion as of 23 December 2011, making it the 30th-largest company on the London Stock Exchange. It has a secondary listing on the Irish Stock Exchange.