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               20 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     245,936,738     6.62%      1,766,985     0.05%
securities
(2) Derivatives   16,829,515     0.45%      3,910,731     0.11%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            263,636,238     7.10%      5,677,716     0.15%


(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           88,328              2.8604
Purchase           27,892              2.9077
Purchase           400                 2.8863
Purchase           4,336               2.8350
Purchase           1,323               2.9200
Purchase           160,073             2.8579
Purchase           31,761              2.9042
Purchase           139,289             2.9124
Purchase           30,426              2.8575
Purchase           806                 2.8575
Purchase           177,626             2.8575
Purchase           25,197              2.9093
Purchase           1,700               2.8820
Purchase           5,324               2.8669
Purchase           37,427              2.8805
Sale               25,388              2.9075
Sale               45,902              2.9039
Sale               424                 2.8648
Sale               2,304               2.8408
Sale               33,179              2.8617
Sale               39,412              2.8997
Sale               28,820              2.9141
Sale               400                 2.8863
Sale               12                  2.9083
Sale               1,080               2.8930
Sale               177,626             2.8575
Sale               119,494             2.9575
Sale               24,924              2.8784

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            424             2.8648
CFD            Long            24924           2.8783
CFD            Long            23808           2.8849
CFD            Long            400             2.8862
CFD            Long            39412           2.8996
CFD            Long            45902           2.9039
CFD            Long            25388           2.9074
CFD            Long            28820           2.9141
CFD            Short           160073          2.8579
CFD            Short           88328           2.8604
CFD            Short           5324            2.8669
CFD            Short           37427           2.8804
CFD            Short           400             2.8862
CFD            Short           31761           2.9042
CFD            Short           27892           2.9076
CFD            Short           25197           2.9093
CFD            Short           139289          2.9123
CFD            Short           1323            2.92

(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                         21 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