Transaction in Own Shares

BP PLC
21 May 2004


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 21 May 2004


BP p.l.c. announces that on 20 May 2004, it purchased for cancellation 2,971,494
ordinary shares at prices between 480.25 pence and 485.00 pence per share.


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


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