Transaction in Own Shares

BP PLC
13 April 2007

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

BP p.l.c.  -  13 April 2007



BP p.l.c. announces that on 12 April 2007, it purchased for cancellation
4,518,377 ordinary shares at prices between 557.5 pence and 563.0 pence per
share.



Following the above transaction, BP p.l.c. holds 1,943,935,076 ordinary shares
in Treasury, and has 19,261,200,408 ordinary shares in issue (excluding Treasury
shares).



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


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