Transaction in Own Shares

BP PLC
27 September 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 27 September 2006

BP p.l.c. announces that on 26 September 2006, it purchased for cancellation
7,900,000 ordinary shares at prices between 563.0 pence and 571.0 pence per
share.

Following the above transaction, BP p.l.c. holds 1,948,078,081 ordinary shares
in Treasury, and has 19,817,108,344 ordinary shares in issue (excluding Treasury
shares).

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



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