Transaction in Own Shares

BP PLC
07 August 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  7 August 2006

BP p.l.c. announces that on 4 August 2006, it purchased 7,149,300 ordinary
shares at prices between 631.0 pence and 637.5 pence per share and between
1200.17 cents and 1213.33 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above transactions, BP p.l.c. holds 1,891,918,954 ordinary shares
in Treasury, and has 19,806,129,503 ordinary shares in issue (excluding Treasury
shares).

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


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