Transaction in Own Shares

BP PLC
13 March 2008


BP p.l.c. -  Transaction in Own Shares
BP p.l.c. -  13 March 2008



BP p.l.c. announces that on 12 March 2008, it purchased for cancellation 905,000
ordinary shares at prices between 543.50 pence and 547.00 pence per share.

BP p.l.c. also announces that on 12 March 2008 it transferred to participants in
its employee share schemes 631,573 ordinary shares at prices between 350.00
pence and 610.50 pence. These shares were previously held as treasury shares.

Following the above transactions BP p.l.c. holds 1,938,444,967 ordinary shares
in Treasury, and has 18,858,584,802 ordinary shares in issue (excluding Treasury
shares).


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




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