Transaction in Own Shares

BP PLC
31 October 2007

BP p.l.c. -  Transaction in Own Shares
BP p.l.c. -  31 October 2007


BP p.l.c. announces that on 30 October 2007, it purchased for cancellation
1,925,000 ordinary shares at prices between 622.00 pence and 634.50 pence per
share.



Following the above transaction BP p.l.c. holds 1,941,467,402 ordinary shares in
Treasury, and has 18,992,395,813 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