Transaction in Own Shares

BP PLC
30 October 2007


BP p.l.c. - Transaction in Own Shares
BP p.l.c. - 30 October 2007

BP p.l.c. announces that on 29 October 2007, it purchased for cancellation
1,600,000 ordinary shares at prices between 631.50 pence and 637.00 pence per
share.

Following the above transaction BP p.l.c. holds 1,941,467,402 ordinary shares in
Treasury, and has 18,994,004,075 ordinary shares in issue (excluding Treasury
shares).

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



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