Transaction in Own Shares

BP PLC
04 October 2006


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  4 October 2006

BP p.l.c. announces that on 3 October 2006, it purchased for cancellation
7,250,000 ordinary shares at prices between 567.0 pence and 577.0  pence per
share.

This purchase was bought as part of the close period contract announced on the
28th September 2006.

Following the above transaction, BP p.l.c. holds 1,947,931,905 ordinary shares
in Treasury, and has 19,801,292,066 ordinary shares in issue (excluding Treasury
shares).

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


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