Transaction in Own Shares

BP PLC
26 July 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 26 July 2006

BP p.l.c. announces that on 25 July 2006, it purchased 7,835,000 ordinary shares
at prices between 628.0 pence and 634.5 pence per share and between 1154.5 cents
and 1162.83 cents per share. The purchased shares will all be held as Treasury
shares.

Following the above transactions, BP p.l.c. holds 1,830,184,664 ordinary shares
in Treasury, and has 19,866,043,675 ordinary shares in issue (excluding Treasury
shares).

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



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