Transaction in Own Shares

BP PLC
28 March 2007

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

BP p.l.c.  -  28 March 2007



BP p.l.c. announces that on 27 March 2007, it purchased for cancellation
3,728,000 ordinary shares at prices between 542.5 pence and 549.1 pence per
share.



Following the above transaction, BP p.l.c. holds 1,943,967,955 ordinary shares
in Treasury, and has 19,295,221,978 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