Transaction in Own Shares

BP PLC
01 May 2007


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 1 May 2007

BP p.l.c. announces that on 30 April 2007, it purchased for cancellation
2,639,241 ordinary shares at prices between 567.0 pence and 570.0 pence per
share.

Following the above transaction, BP p.l.c. holds 1,943,904,926 ordinary shares
in Treasury, and has 19,220,599,227 ordinary shares in issue (excluding Treasury
shares).

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



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