Transaction in Own Shares

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

BP p.l.c. - 28 April 2010

BP p.l.c. announces that on 26 April 2010 it transferred to participants in its employee share schemes 17,946 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 1,860,839,405 ordinary shares in Treasury, and has 18,784,819,431 ordinary shares in issue (excluding Treasury shares).

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