Transaction in Own Shares

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

BP p.l.c. - 6 June 2011

BP p.l.c. announces that it transferred to participants in its employee share schemes 2,567 ordinary shares on 2 June 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 transaction, BP p.l.c. holds 1,846,244,038 ordinary shares in Treasury, and has 18,867,819,396 ordinary shares in issue (excluding Treasury shares).

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