Transaction in Own Shares

BP PLC
01 July 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 1 July 2005

BP p.l.c. announces that on 30 June 2005, it purchased 4,700,000 ordinary shares
at prices between 581.50 pence and 587.00 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 318,993,000 ordinary shares in
Treasury, and has 21,174,178,678 ordinary shares in issue (excluding Treasury
shares).

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



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