Fıle Brıtaın Bp

epa02182443 ( FILE ) A file photograph showing BP signs , in central London , 13 February 2001 . Shares in oil giant British Petroleum ( BP ) dropped sharply on the London Stock Exchange ( LSE ) 01 June 2010 following the company?s admission that its " top kill " effort to seal the well had failed . The 15-per cent plunge in the share price came as BP revealed that the total cost of its response to the April 20 incident had reached 990 million dollars .  EPA/HUGO PHILPOT