Transaction in Own Shares

BP PLC
11 March 2005

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

BP p.l.c.  -  11 March 2005



BP p.l.c. announces that on 10 March 2005, it purchased 5,500,000 ordinary
shares at prices between 553.50 pence and 560.50 pence per share. The purchased
shares will all be held as Treasury shares.



Following the above purchase, BP p.l.c. holds  82,650,000  ordinary shares in
Treasury, and has 21,397,277,041 ordinary shares in issue (excluding Treasury
shares).



Enquiries : Fergus MacLeod, BP p.l.c.    Tel : [phone]


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