Transaction in Own Shares

BP PLC
26 May 2006


BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  26 May 2006


BP p.l.c. announces that on 25 May 2006, it purchased 3,166,704 ordinary shares
at prices between 611.00 pence and 630.0 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above transactions, BP p.l.c. holds 1,568,374,382 ordinary shares
in Treasury, and has 20,125,936,785 ordinary shares in issue (excluding Treasury
shares).


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


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