Transaction in Own Shares

BP PLC
17 August 2006

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

BP p.l.c.  -  17 August 2006



BP p.l.c. announces that on 16 August 2006, it purchased 6,058,000 ordinary
shares at prices between 605.0 pence and 616.5 pence per share. The purchased
shares will all be held as Treasury shares.

BP p.l.c. also announces that on 16 August 2006 it transferred to participants
in its employee share schemes 9,486 ordinary shares at prices between 350.00
pence and 452.0 pence. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,937,999,185 ordinary shares
in Treasury, and has 19,761,198,814 ordinary shares in issue (excluding Treasury
shares).



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


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