Total Voting Rights

1 June 2017

Centrica plc

('the Company')

Total Voting Rights

In accordance with the Disclosure and Transparency Rules ('the Rules'), we notify the market of the following:

As at 31 May 2017 the issued capital of the Company comprised 5,492,828,552 ordinary shares of 614/81 pence ('Shares'). This figure excludes 46,534,820 Shares held in treasury. All of the issued Shares carry voting rights of one vote per share.

The figure of 5,492,828,552 may be used by shareholders (and others with notification obligations) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Rules.

Andy Hodges

Head of Secretariat, Centrica plc

01753 494000

Centrica plc is listed on the London Stock Exchange (CNA)Registered Office: Millstream, Maidenhead Road, Windsor, Berkshire SL4 5GD

Registered in England & Wales number: 3033654Legal Entity Identifier number: E26EDV109X6EEPBKVH76ISIN number: GB00B033F229