Transaction in Own Shares

BP PLC
21 November 2007


BP p.l.c. -  Transaction in Own Shares
BP p.l.c. -  21 November 2007


BP p.l.c. announces that on 20 November 2007, it purchased for cancellation
2,418,572 ordinary shares at prices between 567.75 pence and 576.00 pence per
share.


Following the above transaction BP p.l.c. holds 1,940,887,868 ordinary shares in
Treasury, and has 18,967,611,989 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