Transaction in Own Shares

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

BP p.l.c. - 9 August 2011

BP p.l.c. announces that it transferred 549 ordinary shares to participants in its employee share schemes on 8th August 2011 at a price of 420.00 pence per share. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,844,569,358 ordinary shares in Treasury, and has 18,942,401,504 ordinary shares in issue (excluding Treasury shares).

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