Transaction in Own Shares

BP PLC
04 July 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 4 July 2005

BP p.l.c. announces that on 1 July 2005, it purchased 2,500,000 ordinary
shares at prices between 580.5 pence and 593.50 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds  321,493,000 ordinary shares in
Treasury, and has  21,172,204,560 ordinary shares in issue (excluding Treasury
shares).

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



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