Transaction in Own Shares

BP PLC
14 July 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  14 July 2006

BP p.l.c. announces that on 13 July 2006, it purchased 9,088,112 ordinary shares
at prices between 635.0 pence and 642.0 pence per share and between 1170.83
cents and 1188.67 cents per share. The purchased shares will all be held as
Treasury shares.

Following the above transaction, BP p.l.c. holds 1,770,361,505 ordinary shares
in Treasury, and has 19,925,475,550 ordinary shares in issue (excluding Treasury
shares).

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


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