Transaction in Own Shares

BP PLC
18 January 2008

BP p.l.c. -  Transaction in Own Shares
BP p.l.c. -  18 January 2008

BP p.l.c. announces that on 17 January 2008, it purchased for cancellation
2,150,000 ordinary shares at prices between 554.50 pence and 565.50 pence per
share.

Following the above transaction BP p.l.c. holds 1,939,951,078 ordinary shares in
Treasury, and has 18,903,832,088 ordinary shares in issue (excluding Treasury
shares).


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



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