Transaction in Own Shares

BP p.l.c.

Transaction in own shares

BP p.l.c. announces that on 11 November 2011 it transferred the following number of ordinary shares, which were previously held as treasury shares, to participants in its employee share schemes:

Date of transfer: 11 November 2011

Number of ordinary shares transferred: 2,701,849

Transfer price per share: £3.885

Following the above transfer, BP p.l.c. holds 1,839,251,890 ordinary shares in treasury, and has 18,962,682,924 ordinary shares in issue (excluding treasury shares).

This announcement is made in accordance with the requirements of Listing Rule 12.6.4.