Transaction in Own Shares

BP PLC
05 April 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 5 April 2006

BP p.l.c. announces that on 4 April 2006, it purchased 9,420,000 ordinary shares
at prices between 663.00 pence and 671.50 pence per share and between 1166.00
cents and 1170.00 cents per share. The purchased shares will all be held as
Treasury shares.

Following the above transaction, BP p.l.c. holds 1,340,713,464 ordinary shares
in Treasury, and has 20,328,628,391 ordinary shares in issue (excluding Treasury
shares).

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



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