Transaction in Own Shares

BP PLC
21 November 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  21 November 2006


BP p.l.c. announces that on 20 November 2006, it purchased for cancellation
7,250,000 ordinary shares at prices between 575.0 pence and 586.0 pence per
share.


Following the above transaction, BP p.l.c. holds 1,947,184,507 ordinary shares
in Treasury, and has 19,573,836,803 ordinary shares in issue (excluding Treasury
shares).



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




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