Transaction in Own Shares

BP PLC
10 March 2005



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

BP p.l.c.  -  10 March 2005



BP p.l.c. announces that on 9 March 2005, it purchased 3,600,000 ordinary shares
at prices between 569.00 pence and 574.50 pence per share. The purchased shares
will all be held as Treasury shares.


Following the above purchase, BP p.l.c. holds  77,150,000  ordinary shares in
Treasury, and has   21,402,372,487 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