Transaction in Own Shares

BP PLC
02 June 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 2 June 2005

BP p.l.c. announces that on 1 June 2005, it purchased 2,000,000 ordinary shares
at prices between 554.00 pence and 560.00 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 244,608,000 ordinary shares in
Treasury, and has 21,243,245,684 ordinary shares in issue (excluding Treasury
shares).

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



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