Transaction in Own Shares

BP PLC
19 January 2007




BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 19 January 2007

BP p.l.c. announces that on 18 January 2007, it purchased for cancellation
3,000,000 ordinary shares at prices between 535.0 pence and 542.5 pence per
share.

Following the above transaction, BP p.l.c. holds 1,946,405,810 ordinary shares
in Treasury, and has 19,467,000,133 ordinary shares in issue (excluding Treasury
shares).


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



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