Transaction in Own Shares

BP PLC
01 November 2005

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  1 November 2005

BP p.l.c. announces that on 31 October 2005, it purchased 10,789,000 ordinary
shares at prices between 623.00 pence and 635.50 pence per share and between
1102.8 cents and 1125.8 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above purchase, BP p.l.c. holds 784,854,950 ordinary shares in
Treasury, and has 20,851,935,557 ordinary shares in issue (excluding Treasury
shares).

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


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