Transaction in Own Shares

LONDON--(BUSINESS WIRE)--

Centrica plc

11 March 2013

Share Repurchase Programme

Centrica plc announces that on 8 March 2013, it purchased (through UBS Limited) 1,000,000 (one million) Centrica plc ordinary shares at an average price of 351.9231 pence per share. The highest price and the lowest price paid for these shares were 354.00 pence and 349.80 pence respectively.

The purchased shares will be held as treasury shares. Following the above purchase, Centrica plc holds 5,610,000 ordinary shares in treasury and has 5,194,150,535 ordinary shares in issue (excluding treasury shares).

Nicola Carroll

Head of Company Secretarial Services

01753 494000

END