Transaction in Own Shares

BP PLC
20 June 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 20 June 2006

BP p.l.c. announces that on 19 June 2006, it purchased 6,300,000 ordinary shares
at prices between 597.5 pence and 605.0 pence per share. The purchased shares
will all be held as Treasury shares.
 BP p.l.c. also announces that on 19 June 2006 it transferred to participants in
its employee share schemes 173,350 ordinary shares at prices between 350.0 pence
and 452.0 pence per share. These shares were previously held as treasury shares.
Following the above transactions, BP p.l.c. holds 1,664,178,127 ordinary shares
in Treasury, and has 20,030,544,536 ordinary shares in issue (excluding Treasury
shares).

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



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