Transaction in Own Shares

BP PLC
10 August 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 10 August 2005

BP p.l.c. announces that on 9 August 2005, it purchased 12,685,000 ordinary
shares at prices between 649.50 pence and 662.50 pence per share and between
1170.33 cents and 1178.50 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above purchase, BP p.l.c. holds 538,435,784 ordinary shares in
Treasury, and has 20,966,850,477 ordinary shares in issue (excluding Treasury
shares).

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



                      This information is provided by RNS
            The company news service from the London Stock Exchange