Transaction in Own Shares

BP PLC
14 April 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 14 April 2005

BP p.l.c. announces that on 13 April 2005, it purchased 5,000,000 ordinary
shares at prices between 546.00 pence and 556.00 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 143,285,000 ordinary shares in
Treasury, and has 21,341,584,951 ordinary shares in issue (excluding Treasury
shares).

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


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