Transaction in Own Shares

BP p.l.c. - Transaction in Own Shares

BP p.l.c. - 9 September 2011

BP p.l.c. announces that it transferred 3,218 ordinary shares to participants in its employee share schemes on 8th September 2011 at prices between 394.00 pence per share and 420.00 pence per share. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,843,892,501 ordinary shares in Treasury, and has 18,943,116,371 ordinary shares in issue (excluding Treasury shares).

Enquiries: Fergus MacLeod, BP p.l.c. Tel: 020 7496 4632