Transaction in Own Shares

BP PLC
06 July 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  6 July 2006

BP p.l.c. announces that on 5 July 2006, it purchased 6,327,200 ordinary shares
at prices between 627.50 pence and 633.50 pence per share and between 1153.50
cents and 1171.00 cents per share. The purchased shares will all be held as
Treasury shares.

Following the above transactions, BP p.l.c. holds 1,716,616,744 ordinary shares
in Treasury, and has 19,978,634,211 ordinary shares in issue (excluding Treasury
shares).

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


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