Transaction in Own Shares

BP PLC
23 November 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 23 November 2005

BP p.l.c. announces that on 22 November 2005, it purchased 7,923,000 ordinary
shares at prices between 657.00 pence and 665.00 pence per share and between
1130.67 cents and 1141.17 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above transactions, BP p.l.c. holds 873,144,648 ordinary shares in
Treasury, and has 20,764,390,461 ordinary shares in issue (excluding Treasury
shares).

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



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