Transaction in Own Shares

BP PLC
17 July 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 17 July 2006

BP p.l.c. announces that on 14 July 2006, it purchased 7,621,506 ordinary shares
at prices between 640.0 pence and 649.0 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above transaction, BP p.l.c. holds 1,777,983,011 ordinary shares
in Treasury, and has 19,917,907,236 ordinary shares in issue (excluding Treasury
shares).

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



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