Transaction in Own Shares

BP PLC
28 February 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 28 February 2005

BP p.l.c. announces that on 25 February 2005, it purchased 3,200,000 ordinary
shares at prices between 562.50 pence and 565.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 50,600,000 ordinary shares in
Treasury, and has 21,417,890,263 ordinary shares in issue (excluding Treasury
shares).

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


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