Transaction in Own Shares

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

BP p.l.c. - 1 September 2010

BP p.l.c. announces that it transferred 2,289 ordinary shares on 31st August to participants in its employee share schemes at prices between 455.0 pence per share and 487.0 pence per share. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 1,856,231,428 ordinary shares in Treasury, and has 18,790,884,838 ordinary shares in issue (excluding Treasury shares).

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