Transaction in Own Shares

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

BP p.l.c. - 16 August 2010

BP p.l.c. announces that it transferred 594,969 ordinary shares on 13th August to participants in its employee share schemes at prices between 364.80 pence per share and 641.10 pence per share. These shares were previously held as treasury shares.

Following the above transaction, BP p.l.c. holds1,856,237,859 ordinary shares in Treasury, and has 18,790,878,407 ordinary shares in issue (excluding Treasury shares).

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