Annual Information Update

Centrica PLC
                  

Centrica plc

Annual Information Update - 12 months to 1 April 2008

In accordance with Prospectus Rule 5.2 the following lists have been prepared
referring to or containing all information that has been published or made
available to the public by Centrica plc over the previous 12 months in
compliance with its obligations under Community and national laws and rules
dealing with the regulation of securities, issuers of securities and securities
markets.

In accordance with Article 27(3) of the Prospectus Directive Regulation, it is
acknowledged that whilst the information referred to below was up to date at the
time of publication, such disclosures may, at any time, become out of date due
to changing circumstances.

1) Announcements made via a Regulatory Information Service:

-0-
*T
Date        Regulatory Headline             Via
1-Apr-08    Total Voting Rights             BZN
31-Mar-08   Directorate Change              BZN
28-Mar-08   Annual Report & Accounts        BZN
27-Mar-08   Gas Storage Project             BZN
26-Mar-08   Holding(s) in Company           BZN
20-Mar-08   Director/PDMR Shareholding      BZN
11-Mar-08   Director/PDMR Shareholding      BZN
03-Mar-08   Total Voting Rights             BZN
21-Feb-08   Final Results                   BZN
20-Feb-08   Director/PDMR Shareholding      BZN
15-Feb-08   Centrica - Gas Deal             BZN
01-Feb-08   Total Voting Rights             BZN
22-Jan-08   Director/PDMR Shareholding      BZN
18-Jan-08   British Gas Pricing             BZN
14-Jan-08   Cerespower Agreement            BZN
02-Jan-08   Total Voting Rights - Centrica  BZN
             Plc
20-Dec-07   Director/PDMR Shareholding      BZN
14-Dec-07   Trading Statement               BZN
30-Nov-07   Total Voting Rights             BZN
 30-Nov-07  Holding(s) in Company           BZN
 21-Nov-07  Director/PDMR Shareholding      BZN
 15-Nov-07  Director/PDMR Shareholding      BZN
 15-Nov-07  Holding(s) in Company           BZN
15-Nov-07   Centrica enters into agreement  BZN
             to acquire Alberta gas assets
13-Nov-07   Holding(s) in Company           BZN
07-Nov-07   Holding(s) in Company           BZN
31-Oct-07   Blocklisting Interim Review     BZN
31-Oct-07   Total Voting Rights             BZN
 23-Oct-07  Director/PDMR Shareholding      BZN
 01-Oct-07  Publication of Prospectus       RNS
 01-Oct-07  Director Declaration            BZN
 28-Sep-07  Director/PDMR Shareholding      BZN
 28-Sep-07  Total Voting Rights             BZN
 20-Sep-07  Director/PDMR Shareholding      BZN
 17-Sep-07  Gas Company Acquisition         BZN
 11-Sep-07  Director/PDMR Shareholding      BZN
 31-Aug-07  Total Voting Rights             BZN
 28-Aug-07  Director Declaration            BZN
 21-Aug-07  Director/PDMR Shareholding      BZN
 13-Aug-07  Director/PDMR Shareholding      BZN
 13-Aug-07  Director/PDMR Shareholding -    BZN
             Amendment
 13-Aug-07  Director/PDMR Shareholding      BZN
 06-Aug-07  Director/PDMR Shareholding      BZN
 02-Aug-07  Half-yearly Report              BZN
 01-Aug-07  Holding(s) in Company           BZN
 01-Aug-07  Acquisition of Wind Farm        BZN
 31-Jul-07  Total Voting Rights             BZN
 25-Jul-07  Director Declaration            BZN
 23-Jul-07  Director/PDMR Shareholding      BZN
 20-Jul-07  Director/PDMR Shareholding      BZN
 16-Jul-07  Gas Supply Agreement            BZN
 10-Jul-07  Holding(s) in Company           BZN
 29-Jun-07  Total Voting Rights             BZN
 26-Jun-07  Director/PDMR Shareholding      BZN
 25-Jun-07  Trading Statement               BZN
 20-Jun-07  Director/PDMR Shareholding      BZN
 14-Jun-07  Director/PDMR Shareholding      BZN
 14-Jun-07  Director/PDMR Shareholding      BZN
 31-May-07  Total Voting Rights             BZN
 22-May-07  Director/PDMR Shareholding      BZN
 17-May-07  LNG Agreement                   BZN
 14-May-07  Result of AGM                   BZN
 14-May-07  AGM Statement                   RNS
 04-May-07  Blocklisting Interim Review     BZN
 30-Apr-07  Total Voting Rights             BZN
 26-Apr-07  British Gas Statement on Energy BZN
             Prices
 25-Apr-07  Director Declaration            BZN
 24-Apr-07  Additional Listing              BZN
 20-Apr-07  Director/PDMR Shareholding      BZN
 19-Apr-07  British Gas Launches New Green  BZN
             Business
 12-Apr-07  Director/PDMR Shareholding      BZN
 05-Apr-07  Director/PDMR Shareholding      BZN
 02-Apr-07  Annual Information Update       BZN
*T

Copies of Announcements made via a Regulatory Information Service can be
obtained from the Company's website www.centrica.com

2) Documents filed at Companies House:

The Company has submitted filings to Companies House in relation to the Annual
Report and Accounts 2006, appointment and resignation of directors, the
allotment of shares, ordinary and special resolutions passed at the Company's
AGM on 14 May 2007 and the Annual Return.

Copies of documents filed at Companies House can be obtained from Companies
House, Crown Way, Cardiff CF14 3UZ or through Companies House Direct at
www.direct.companieshouse.gov.uk.

3) Documents filed with the Financial Services Authority Document Viewing
Facility:

-0-
*T
Date            Brief Description of Document(s)
28-Mar-08       Notice of Annual General Meeting
28-Mar-08       Annual Report & Accounts for the year ended 31 December
                 2007
28-Mar-08       Annual Review and Summary Financial Statements for the
                 year ended 31 December 2007
*T

Copies of documents filed with the Financial Services Authority Document Viewing
Facility can be obtained from the Financial Services Authority, 25 The North
Colonnade, Canary Wharf, London, E14 5HS.

-0-
*T
Further enquiries:

Paul Moore
Assistant Company Secretary
*T

2 April 2008