Transaction in Own Shares

BP PLC
25 October 2005

BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 25 October 2005

BP p.l.c. announces that on 24 October 2005, it purchased 2,700,000 ordinary
shares at prices between 605.00 pence and 615.50 pence per share. The purchased
shares will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 738,490,434 ordinary shares in
Treasury, and has 20,898,162,241 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