Transaction in Own Shares

BP PLC
09 November 2005

BP p.l.c.  -  Transaction in Own Shares
BP p.l.c.  -  09 November 2005

BP p.l.c. announces that on 8 November 2005, it purchased 8,313,000 ordinary
shares at prices between 633.0 pence and 639.5 pence per share and between
1097.50 cents and 1109.00 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above transactions, BP p.l.c. holds 839,645,840 ordinary shares in
Treasury, and has 20,797,375,973 ordinary shares in issue (excluding Treasury
shares).

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


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