Transaction in Own Shares

BP PLC
12 April 2007

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

BP p.l.c.  -  12 April 2007



BP p.l.c. announces that on 11 April 2007, it purchased for cancellation
4,779,714 ordinary shares at prices between 556.5 pence and 563.0 pence per
share.



BP p.l.c. also announces that on 11 April 2007 it transferred to participants in
its employee share schemes 26,061 ordinary shares at prices between 326.0 pence
and 500.0 pence. These shares were previously held as treasury shares.



Following the above transaction, BP p.l.c. holds 1,943,935,076 ordinary shares
in Treasury, and has 19,265,718,785 ordinary shares in issue (excluding Treasury
shares).



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


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