Rule 8.3 - CENTRICA

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              CENTRICA
Class of relevant security    ORD GBP0.061728395
to which the dealings being
disclosed relate (Note 2)
Date of dealing               18 November 2008

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant     242,134,836     6.52%      2,206,408     0.06%
securities
(2) Derivatives   17,245,754     0.46%      3,741,489     0.10%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            260,250,575     7.01%      5,947,897     0.16%

(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale      Number of           Price per unit
                   Securities          (GBP)
Purchase           274,075             3.0107
Purchase           1,500               3.0130
Purchase           200                 2.9900
Purchase           60,180              3.0643
Purchase           4,937               3.0650
Purchase           700                 3.0425
Purchase           96,483              3.0650
Purchase           3,383               3.0070
Purchase           45,765              3.0650
Purchase           45,765              3.0650
Purchase           9,105               3.0650
Purchase           564,661             3.0179
Purchase           486                 Transfer
Purchase           47,735              3.0202
Purchase           16,767              3.0191
Purchase           64,606              3.0142
Purchase           44,291              3.0179
Purchase           3,383               3.0070
Sale               2,250               3.0130
Sale               84,866              3.0353
Sale               80,009              3.0138
Sale               17,400              3.0298
Sale               700                 3.0425
Sale               5,823               3.0275
Sale               845                 Transfer
Sale               200                 2.9900
Sale               57,554              3.0650
Sale               958                 3.0401
Sale               11,674              3.0171
Sale               7,703               3.0288
Sale               65,780              3.0614
Sale               267                 3.0205

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            200             2.99
CFD            Long            80009           3.0138
CFD            Long            1703            3.0223
CFD            Long            5823            3.0275
CFD            Long            14129           3.0281
CFD            Long            17400           3.0298
CFD            Long            6000            3.0306
CFD            Long            57129           3.0349
CFD            Long            17242           3.035
CFD            Long            84866           3.0353
CFD            Long            700             3.0425
CFD            Long            65780           3.0614
CFD            Short           200             2.99
CFD            Short           8201            3.0022
CFD            Short           1500            3.013
CFD            Short           64606           3.0142
CFD            Short           608952          3.0178
CFD            Short           16767           3.0191
CFD            Short           39534           3.0239
CFD            Short           700             3.0425
CFD            Short           60180           3.0643
CFD            Short           8598            3.065

(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)



(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 YES


Date of disclosure                         19 November 2008
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased    869,985               4.0304           EURO           18/12/2008


Notes

1. Where there are open option positions or open derivative positions (except for CFD's), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk