Transaction in Own Shares

BP PLC
11 January 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 11 January 2006

BP p.l.c. announces that on 10 January 2006, it purchased 3,000,000 ordinary
shares at prices between 642.00 pence and 647.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above transaction, BP p.l.c. holds 1,002,105,460 ordinary shares
in Treasury, and has 20,638,366,200 ordinary shares in issue (excluding Treasury
shares).

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



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