Transaction in Own Shares

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

BP p.l.c. - 3 June 2010

BP p.l.c. announces that on 1 June 2010 it transferred to participants in its employee share schemes 8,927 ordinary shares at prices between 420.00 pence and 500.00 pence per share. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds 1,858,384,188 ordinary shares in Treasury, and has 18,788,709,278 ordinary shares in issue (excluding Treasury shares).

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