Transaction in Own Shares

BP PLC
14 December 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 14 December 2005

BP p.l.c. announces that on 13 December 2005, it purchased 3,554,000 ordinary
shares at prices between 634.50 pence and 638.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above transaction, BP p.l.c. holds 966,868,283 ordinary shares in
Treasury, and has 20,672,054,894 ordinary shares in issue (excluding Treasury
shares).

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



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