Transaction in Own Shares

BP PLC
27 March 2007

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

BP p.l.c.  -  27 March 2007



BP p.l.c. announces that on 26 March 2007, it purchased for cancellation
3,266,070 ordinary shares at prices between 541.5 pence and 547.0 pence per
share.



Following the above transaction, BP p.l.c. holds 1,943,967,955 ordinary shares
in Treasury, and has 19,298,097,324 ordinary shares in issue (excluding Treasury
shares).



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


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