Transaction in Own Shares

BP PLC
01 June 2006

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

BP p.l.c.  -  1 June 2006



BP p.l.c. announces that on 31 May 2006, it purchased 5,980,000 ordinary shares
at prices between 618.00 pence and 628.50 pence per share. The purchased shares
will all be held as Treasury shares.



BP p.l.c. also announces that on 31 May 2006 it transferred to participants in
its employee share schemes 3,349 ordinary shares at prices between 350.00 pence
and 441.00 pence. These shares were previously held as treasury shares.



Following the above transactions, BP p.l.c. holds 1,585,226,033 ordinary shares
in Treasury, and has 20,109,170,196 ordinary shares in issue (excluding Treasury
shares).



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


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