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               28 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     228,117,123     6.14%     22,209,108     0.60%
securities
(2) Derivatives   40,064,364     1.08%      7,260,076     0.20%
(other than
options)
(3) Options and      977,237     0.03%              0     0.00%
agreements to
purchase/sell
Total            269,158,724     7.25%     29,469,184     0.79%

(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           191,227             2.3650
Purchase           6,717               2.3650
Purchase           5,065               2.3650
Purchase           15,775              2.3167
Purchase           3,914               2.3650
Purchase           5,147               2.3650
Purchase           20,224              2.3650
Purchase           44,990              2.3167
Purchase           142,627             2.3650
Purchase           216,619             2.3167
Purchase           98,101              2.3650
Purchase           213,184             2.3650
Purchase           319,194             2.3650
Purchase           705,412             2.3167
Purchase           14,369              2.3167
Purchase           13,300              2.3127
Purchase           28,942              2.3358
Purchase           23,985              2.3263
Purchase           5,950               2.2962
Purchase           14,090              2.2803
Purchase           614,089             2.3039
Purchase           4,519               2.3650
Purchase           78,013              2.3500
Purchase           7,190               2.3650
Purchase           5,385               2.3052
Purchase           16,100              2.3127
Purchase           20,661              2.3382
Purchase           295,967             2.3338
Purchase           6,292               2.3650
Purchase           10,756              2.3166
Purchase           185,964             2.2817
Purchase           1,456               2.3650
Purchase           161,408             2.3650
Purchase           10,857              2.3650
Purchase           7,352               2.3650
Purchase           6,872               2.3650
Purchase           28,557              2.3650
Purchase           406                 2.3425
Purchase           1,456               2.3650
Purchase           2,854               2.3164
Purchase           17,104              2.3650
Purchase           2,854               2.3164
Purchase           10,196              2.3650
Purchase           14,981              2.3650
Purchase           38,365              2.3167
Purchase           17,436              2.3650
Purchase           25,450              2.3650
Purchase           8,744               2.3650
Purchase           22,041              2.3167
Purchase           18,857              2.3167
Sale               406                 2.3425
Sale               43,141              2.3631
Sale               7,680               2.3272
Sale               167,911             2.3428
Sale               34,017              2.3404
Sale               10                  2.3455
Sale               204,069             2.3288
Sale               14,217              2.3650
Sale               25,000              2.3646
Sale               12,222              2.3356
Sale               83,000              2.2933
Sale               62,016              2.3650
Sale               5,066               2.3650
Sale               17,128              2.3650
Sale               9,013               2.3650
Sale               2,250               2.3330
Sale               75,033              2.3650
Sale               2,416               2.3650
Sale               2,535               2.3650
Sale               1,500               2.3530
Sale               6,408,479           2.3221
Sale               83,073              2.3368
Sale               10,846              2.3650

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            83000           2.2933
CFD            Long            6408479         2.3221
CFD            Long            7680            2.3271
CFD            Long            570617          2.3312
CFD            Long            12222           2.3355
CFD            Long            83073           2.3367
CFD            Long            34017           2.3404
CFD            Long            406             2.3425
CFD            Long            167911          2.3427
CFD            Long            43141           2.3631
CFD            Long            25000           2.3646
CFD            Short           14090           2.2803
CFD            Short           185964          2.2816
CFD            Short           5950            2.2962
CFD            Short           614089          2.3039
CFD            Short           5385            2.3052
CFD            Short           41623           2.3255
CFD            Short           295967          2.3337
CFD            Short           28942           2.3357
CFD            Short           20661           2.3381
CFD            Short           17745           2.3407
CFD            Short           406             2.3425
CFD            Short           9235            2.3461
CFD            Short           78013           2.35

(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                         01 December 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   977,237                3.5881           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