Transaction in Own Shares

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

BP p.l.c. - 20 April 2010

BP p.l.c. announces that on 19 April 2010 it transferred to participants in its employee share schemes 5,240 ordinary shares at prices between 420.00 pence and 500.00 pence per share. These shares were previously held as treasury shares.

BP p.l.c. also announces that on 16 April 2010 it transferred to participants in its employee share schemes 408,793 ordinary shares at a price of 641.10 pence per share. These shares were previously held as treasury shares.

Following the above transactions, BP p.l.c. holds 1,860,857,351 ordinary shares in Treasury, and has 18,783,983,265 ordinary shares in issue (excluding Treasury shares).

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