Transaction in Own Shares

BP PLC
31 August 2007

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  31 August 2007


BP p.l.c. announces that on 30 August 2007, it purchased for cancellation
2,260,000 ordinary shares at prices between 544.50 pence and 554.00 pence per
share.

Following the above transactions, BP p.l.c. holds 1,943,679,378 ordinary shares
in Treasury, and has 19,050,265,073 ordinary shares in issue (excluding Treasury
shares).


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


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