Transaction in Own Shares

BP PLC
21 February 2008



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

BP p.l.c. -  21 February 2008


BP p.l.c. announces that on 20 February 2008, it purchased for cancellation
1,835,000 ordinary shares at prices between 556.50 pence and 568.00 pence per
share.

BP p.l.c. also announces that on 20 February 2008 it transferred to participants
in its employee share schemes 38,239 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 1,939,152,418 ordinary shares
in Treasury, and has 18,875,870,413 ordinary shares in issue (excluding Treasury
shares).

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


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