Transaction in Own Shares

BP PLC
10 March 2006

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

BP p.l.c.  -  10 March 2006

BP p.l.c. announces that on 9 March 2006, it purchased 7,200,000 ordinary shares
at prices between 633.00 pence and 640.00 pence per share and between 1099.17
cents and 1107.50 cents per share. The purchased shares will all be held as
Treasury shares.

Following the above transaction, BP p.l.c. holds 1,240,708,792 ordinary shares
in Treasury, and has 20,420,447,500 ordinary shares in issue (excluding Treasury
shares).

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


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