Transaction in Own Shares

BP PLC
10 October 2007


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 10 October 2007

BP p.l.c. announces that on 9 October 2007, it purchased for cancellation
223,901 ordinary shares at prices between 568.50 pence and 575.50 pence per
share.

Following the above transaction, BP p.l.c. holds 1,941,666,603 ordinary shares
in Treasury, and has 19,009,245,183 ordinary shares in issue (excluding Treasury
shares).

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



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