Transaction in Own Shares

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

BP p.l.c. - 14 September 2010

BP p.l.c. announces that it transferred 5,094 ordinary shares on 13 September 2010 to participants in its employee share schemes at prices between 364.8 pence per share and 641.1.0 pence per share. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 1,856,216,161 ordinary shares in Treasury, and has 18,790,900,105 ordinary shares in issue (excluding Treasury shares).

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