Transaction in Own Shares

BP PLC
22 July 2005

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

BP p.l.c.  -  22 July 2005



BP p.l.c. announces that on 21 July 2005, it purchased 11,500,000 ordinary
shares at prices between 613.00 pence and 625.00 pence per share. The purchased
shares will all be held as Treasury shares.



Following the above purchase, BP p.l.c. holds 425,985,724 ordinary shares in
Treasury, and has 21,075,125,367 ordinary shares in issue (excluding Treasury
shares).



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


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