Transaction in Own Shares

BP PLC
04 April 2005

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

BP p.l.c.  -  4 April 2005



BP p.l.c. announces that on 1 April 2005, it purchased 2,800,000 ordinary shares
at prices between 548.50 pence and 558.00 pence per share. The purchased shares
will all be held as Treasury shares.



Following the above purchase, BP p.l.c. holds   119,125,000 ordinary shares in
Treasury, and has  21,364,887,995 ordinary shares in issue (excluding Treasury
shares).



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


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