Transaction in Own Shares

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

BP p.l.c. - 28 September 2010

BP p.l.c. announces that it transferred 3,532 ordinary shares on 27 September 2010 to participants in its employee share schemes at prices between 420.0 pence per share and 441.0 pence per share. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 1,855,572,169 ordinary shares in Treasury, and has 18,791,544,097 ordinary shares in issue (excluding Treasury shares).

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