Transaction in Own Shares

BP PLC
03 August 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 3 August 2005

BP p.l.c. announces that on 2 August 2005, it purchased 8,100,000 ordinary
shares at prices between 627.50 pence and 634.50 pence per share and between
1117.50 cents and 1125.00 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above purchase, BP p.l.c. holds 496,487,724 ordinary shares in
Treasury, and has 21,006,569,173 ordinary shares in issue (excluding Treasury
shares).

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



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