Transaction in Own Shares

BP PLC
23 June 2005


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 23 June 2005

BP p.l.c. announces that on 22 June 2005, it purchased 3,750,000 ordinary shares
at prices between 581.00 pence and 587.00 pence per share. The purchased shares
will all be held as Treasury shares.

Following the above purchase, BP p.l.c. holds 295,968,000 ordinary shares in
Treasury, and has 21,195,073,352 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