Transaction in Own Shares

BP PLC
07 September 2007


BP p.l.c.  -  Transaction in Own Shares

BP p.l.c.  -  7 September 2007


BP p.l.c. announces that on 6 September 2007, it purchased for cancellation
1,755,000 ordinary shares at prices between 558.00 pence and 566.00 pence per
share.


Following the above transactions, BP p.l.c. holds 1,942,464,039 ordinary shares
in Treasury, and has      19,045,283,528 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