Transaction in Own Shares

BP PLC
24 October 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 24 October 2005

BP p.l.c. announces that on 21 October 2005, it purchased 4,500,000 ordinary
shares at prices between 601.00 pence and 608.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 735,790,434 ordinary shares in
Treasury and has 20,900,840,641 ordinary shares in issue (excluding Treasury
shares).

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



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