Annual Information Update

Centrica PLC
                  

Centrica plc

Annual Information Update - 12 months to 31 March 2007

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time of publication, such disclosures may, at any time, become out of date due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:

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Date            Regulatory Headline                              Via
30-Mar-07       Annual report & accounts                         BZN
30-Mar-07       Total Voting Rights                              BZN
29-Mar-07       Additional Listing                               BZN
23-Mar-07       Holding(s) in Company                            BZN
20-Mar-07       Director/PDMR Shareholding                       BZN
16-Mar-07       Director/PDMR Shareholding                       BZN
01-Mar-07       Director's declaration                           BZN
28-Feb-07       Holding(s) in Company                            BZN
28-Feb-07       Holding(s) in Company                            BZN
28-Feb-07       Total Voting Rights                              BZN
22-Feb-07       Final results                                    BZN
22-Feb-07       Directorate change                               BZN
20-Feb-07       Director/PDMR Shareholding                       BZN
15-Feb-07       Director/PDMR Shareholding                       BZN
09-Feb-07       Director/PDMR Shareholding                       BZN
08-Feb-07       British Gas statement on energy prices           BZN
25-Jan-07       Publication of Final Terms                       RNS
23-Jan-07       Additional Listing                               RNS
22-Jan-07       Director/PDMR Shareholding                       BZN
19-Jan-07       Total Voting Rights                              BZN
22-Dec-06       Total Voting Rights                              BZN
20-Dec-06       Director/PDMR Shareholding                       BZN
15-Dec-06       Trading Statement                                BZN
21-Nov-06       Director/PDMR Shareholding                       BZN
20-Nov-06       Netherlands tolling agreement signed             BZN
16-Nov-06       Director/PDMR Shareholding                       BZN
08-Nov-06       Acquisition                                      BZN
06-Nov-06       Blocklisting Interim Review                      BZN
24-Oct-06       Publication of Final Terms                       RNS
20-Oct-06       Director/PDMR Shareholding                       BZN
03-Oct-06       Publication of Prospectus                        RNS
20-Sep-06       Director/PDMR Shareholding                       BZN
19-Sep-06       Directorate change                               BZN
15-Sep-06       Director/PDMR Shareholding                       BZN
14-Sep-06       Holding(s) in Company                            BZN
12-Sep-06       Holding(s) in Company                            BZN
08-Sep-06       Director/PDMR Shareholding                       BZN
08-Sep-06       Director/PDMR Shareholding                       BZN
07-Sep-06       Director/PDMR Shareholding                       BZN
05-Sep-06       Director/PDMR Shareholding                       BZN
25-Aug-06       Additional Listing                               RNS
22-Aug-06       Director/PDMR Shareholding                       BZN
17-Aug-06       Director/PDMR Shareholding                       BZN
09-Aug-06       Restart of South Morecambe gas field             BZN
08-Aug-06       Holding(s) in Company                            BZN
31-Jul-06       Director/PDMR Shareholding                       BZN
27-Jul-06       Interim Results                                  BZN
27-Jul-07       British Gas Statement on Energy Prices           BZN
20-Jul-06       Director/PDMR Shareholding                       BZN
06-Jul-06       Director/PDMR Shareholding                       BZN
30-Jun-06       Director/PDMR Shareholding                       BZN
27-Jun-06       Directorate change                               BZN
23-Jun-06       Disposal                                         BZN
22-Jun-06       Director/PDMR Shareholding                       BZN
21-Jun-06       Director/PDMR Shareholding                       BZN
16-Jun-06       Director/PDMR Shareholding                       BZN
16-Jun-06       Power Station Development                        BZN
16-Jun-06       Trading Statement                                BZN
08-Jun-06       Tax Update                                       BZN
02-Jun-06       Holding(s) in Company                            BZN
31-May-06       Holding(s) in Company                            BZN
23-May-06       Senior Independent Director appointment          BZN
22-May-06       Director/PDMR Shareholding                       BZN
22-May-06       Director/PDMR Shareholding                       BZN
19-May-06       AGM Statement                                    RNS
19-May-06       Result of AGM                                    BZN
18-May-06       Holding(s) in Company                            BZN
18-May-06       Holding(s) in Company                            BZN
12-May-06       Maintenance at South Morecambe field             BZN
05-May-06       Director/PDMR Shareholding                       BZN
03-May-06       Blocklisting Interim Review                      BZN
28-Apr-06       Additional Listing                               RNS
27-Apr-06       Director's declaration                           BZN
25-Apr-06       Director/PDMR Shareholding                       BZN
24-Apr-06       Acquisition                                      BZN
20-Apr-06       Director/PDMR Shareholding                       BZN
19-Apr-06       Publication of Prospectus                        BZN
11-Apr-06       Director/PDMR Shareholding                       BZN
11-Apr-06       Acquisition                                      BZN
04-Apr-06       Director/PDMR Shareholding                       BZN
03-Apr-06       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
appointment and resignation of directors, the allotment of shares, and ordinary
and special resolutions passed at the Company's AGM on 19 May 2006.

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

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

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Date           Brief Description of Document(s)
30-Mar-07      Notice of Annual General Meeting
30-Mar-07      Annual Report & Accounts for the year ended 31 December
                2006
*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.

Further enquiries:

Derek Woodward

Head of Secretariat

2 April 2007

01753 494006