Transaction in Own Shares

BP PLC
05 June 2007


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 5 June 2007

BP p.l.c. announces that on 4 June 2007, it purchased for cancellation 2,100,000
ordinary shares at prices between 566.0 pence and 572.0 pence per share.

Following the above transactions, BP p.l.c. holds 1,943,877,092 ordinary shares
in Treasury, and has 19,166,403,770 ordinary shares in issue (excluding Treasury
shares).

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



                      This information is provided by RNS
            The company news service from the London Stock Exchange