Transaction in Own Shares

BP PLC
02 August 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 2 August 2005

BP p.l.c. announces that on 1 August 2005, it purchased 8,320,000 ordinary
shares at prices between 627.00 pence and 631.50 pence per share and between
1107.00 cents and 1116.67 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above purchase, BP p.l.c. holds 488,387,724 ordinary shares in
Treasury, and has 21,014,331,123 ordinary shares in issue (excluding Treasury
shares).

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



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