Transaction in Own Shares

BP PLC
19 April 2007

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

BP p.l.c.  -  19 April 2007



BP p.l.c. announces that on 18 April 2007, it purchased for cancellation
4,522,900 ordinary shares at prices between 572.0 pence and 576.5 pence per
share.



BP p.l.c. also announces that on 18 April 2007 it transferred to participants in
its employee share schemes 23,452 ordinary shares at prices between 350.0 pence
and 500.0 pence. These shares were previously held as treasury shares.



Following the above transaction, BP p.l.c. holds 1,943,911,624 ordinary shares
in Treasury, and has 19,244,881,001 ordinary shares in issue (excluding Treasury
shares).



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


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