Transaction in Own Shares

BP PLC
12 April 2006


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 12 April 2006

BP p.l.c. announces that on 11 April 2006, it purchased 8,480,000 ordinary
shares at prices between 693.50 pence and 706.00 pence per share and between
1202.50 cents and 1211.67 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above transaction, BP p.l.c. holds 1,379,514,855 ordinary shares
in Treasury, and has 20,292,355,565 ordinary shares in issue (excluding Treasury
shares).

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



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