Transaction in Own Shares

BP PLC
01 May 2008

BP p.l.c. -  Transaction in Own Shares

BP p.l.c. -  1 May 2008



BP p.l.c. announces that on 30 April 2008, it purchased for cancellation
1,235,000 ordinary shares at prices between 608.00 pence and 615.00 pence per
share.



BP p.l.c. also announces that on 30 April 2008 it transferred to participants in
its employee share schemes 5,868 ordinary shares at prices between 350.00 pence
and 500.00 pence. These shares were previously held as treasury shares.



Following the above transactions BP p.l.c. holds 1,907,184,571 ordinary shares
in Treasury, and has 18,850,431,534 ordinary shares in issue (excluding Treasury
shares).



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


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