Transaction in Own Shares

BP PLC
19 June 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  19 June 2006

BP p.l.c. announces that on 16 June 2006, it purchased 8,000,000 ordinary shares
at prices between 597.5 pence and 610.5 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above transactions, BP p.l.c. holds 1,658,051,477 ordinary shares
in Treasury, and has 20,036,666,486 ordinary shares in issue (excluding Treasury
shares).

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



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