Transaction in Own Shares

BP PLC
23 July 2007

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

BP p.l.c.  -  23 July 2007



BP p.l.c. announces that on 20 July 2007, it purchased for cancellation
2,600,000 ordinary shares at prices between 600.0 pence and 607.0 pence per
share.



Following the above transactions, BP p.l.c. holds 1,943,709,447 ordinary shares
in Treasury, and has 19,107,905,446 ordinary shares in issue (excluding Treasury
shares).



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


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