Transaction in Own Shares

BP PLC
25 September 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 25 September 2006

BP p.l.c. announces that on 22 September 2006, it purchased for cancellation
10,002,000 ordinary shares at prices between 575.0 pence and 583.0 pence per
share and between 1087.00 cents and 1107.00 cents per share.

Following the above transaction, BP p.l.c. holds 1,948,078,081 ordinary shares
in Treasury, and has 19,835,120,822 ordinary shares in issue (excluding Treasury
shares).

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



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