Transaction in Own Shares

BP PLC
12 December 2007



BP p.l.c. -  Transaction in Own Shares
BP p.l.c. -  12 December 2007


BP p.l.c. announces that on 11 December 2007, it purchased for cancellation
2,770,000 ordinary shares at prices between 611.50 pence and 620.75 pence per
share.

Following the above transaction BP p.l.c. holds 1,940,735,385 ordinary shares in
Treasury, and has 18,936,256,274 ordinary shares in issue (excluding Treasury
shares).



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




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