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

BP p.l.c. - 16 July 2008

BP p.l.c. announces that on 15 July 2008, it purchased for cancellation 1,300,000 ordinary shares at prices between 525.50 pence and 539.50 pence per share.

BP p.l.c. also announces that on 15 July 2008 it transferred to participants in its employee share schemes 548,672 ordinary shares at prices between 552.00 pence and 613.00 pence. These shares were previously held as treasury shares.

Following the above transactions BP p.l.c. holds 1,905,005,696 ordinary shares in Treasury, and has 18,791,872,907 ordinary shares in issue (excluding Treasury shares).

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

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