Transaction in Own Shares

BP PLC
28 April 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 28 April 2006

BP p.l.c. announces that on 27 April 2006, it purchased 11,340,000 ordinary
shares at prices between 678.50 pence and 694.00 pence per share and between
1225.83 cents and 1237.17 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above transaction, BP p.l.c. holds 1,429,560,105 ordinary shares
in Treasury, and has 20,257,889,189 ordinary shares in issue (excluding Treasury
shares).

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



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