Transaction in Own Shares

BP PLC
03 May 2005


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  03 May 2005


BP p.l.c. announces that on 29 April 2005, it purchased 3,900,000 ordinary
shares at prices between 532.00 pence and 538.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 178,981,000 ordinary shares in
Treasury, and has 21,307,055,798 ordinary shares in issue (excluding Treasury
shares).


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


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