Transaction in Own Shares

BP PLC
21 February 2007

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  20 February 2007


BP p.l.c. announces that on 19 February 2007, it purchased for cancellation
4,830,000 ordinary shares at prices between 528.0 pence and 533.0 pence per
share.

Following the above transaction, BP p.l.c. holds 1,944,336,120 ordinary shares
in Treasury, and has 19,386,200,085 ordinary shares in issue (excluding Treasury
shares).


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


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