Transaction in Own Shares

BP PLC
11 April 2008


BP p.l.c. -  Transaction in Own Shares                                           
BP p.l.c. -  11 April 2008


BP p.l.c. announces that on 10 April 2008, it purchased for cancellation
2,976,794 ordinary shares at prices between 543.50 pence and 550.70 pence per
share.

Following the above transaction BP p.l.c. holds 1,907,773,839 ordinary shares in
Treasury, and has 18,866,710,912 ordinary shares in issue (excluding Treasury
shares).


Enquiries: Fergus MacLeod, BP p.l.c.    Tel: [phone]


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