Transaction in Own Shares

BP PLC
12 May 2004


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  12 May 2004


BP p.l.c. announces that on 11 May 2004, it purchased for cancellation 8,100,000
ordinary shares at prices between 480.5 pence and 490.0 pence per share.

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


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