Transaction in Own Shares

BP PLC
06 April 2006

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  06 April 2006

BP p.l.c. announces that on 05 April 2006, it purchased 7,480,728 ordinary
shares at prices between 663.50 pence and 674.50 pence per share and between
1183.00 cents and 1183.33 cents per share. The purchased shares will all be held
as Treasury shares.

BP p.l.c. also announces that on 05 April 2006 it transferred to participants in
its employee share schemes 7,781 ordinary shares at prices between 350.00 pence
and 511.00 pence. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 1,348,186,411 ordinary shares
in Treasury, and has  20,321,351,484  ordinary shares in issue (excluding
Treasury shares).

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


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