Transaction in Own Shares

BP PLC
26 July 2007

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  26 July 2007



BP p.l.c. announces that on 25 July 2007, it purchased for cancellation
2,490,000 ordinary shares at prices between 582.0 pence and 592.0 pence per
share.

BP p.l.c. also announces that on 25 July 2007 it transferred to participants in
its employee share schemes 4,432 ordinary shares at prices between 350.0 pence
and 500.0 pence. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,943,705,015 ordinary shares
in Treasury, and has 19,100,396,877 ordinary shares in issue (excluding Treasury
shares).


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



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