Transaction in Own Shares

BP PLC
20 August 2007

BP p.l.c.  -  Transaction in Own Shares

BP p.l.c.  -  20 August 2007



BP p.l.c. announces that on 17 August 2007, it purchased for cancellation
540,000 ordinary shares at prices between 516.00 pence and 520.00 pence per
share.



Following the above transactions, BP p.l.c. holds 1,943,688,916 ordinary shares
in Treasury, and has 19,067,091,401 ordinary shares in issue (excluding Treasury
shares).





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


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