Transaction in Own Shares

BP PLC
03 September 2007


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

BP p.l.c.  -  3 September 2007



BP p.l.c. announces that on 31 August 2007, it purchased for cancellation
1,780,000 ordinary shares at prices between 555.00 pence and 558.00 pence per
share.



Following the above transactions, BP p.l.c. holds 1,943,679,378 ordinary shares
in Treasury, and has     19,048,495,873 ordinary shares in issue (excluding
Treasury shares).





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


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