Transaction in Own Shares

BP PLC
14 October 2005

BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 14 October 2005

BP p.l.c. announces that on 13 October 2005, it purchased 7,078,000 ordinary
shares at prices between 618.00 pence and 634.00 pence per share and between
1079.7 cents and 1089.0 cents per share. The purchased shares will all be held
as Treasury shares.

Following the above purchase, BP p.l.c. holds 706,716,481 ordinary shares in
Treasury, and has 20,929,702,509 ordinary shares in issue (excluding Treasury
shares).

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


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