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               19 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     245,703,795     6.62%      1,952,760     0.05%
securities
(2) Derivatives   16,997,846     0.46%      3,751,126     0.10%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            263,571,626     7.10%      5,703,886     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           139,876             2.9575
Purchase           845                 Transfer
Purchase           20,661              3.0171
Purchase           11,993              3.0455
Purchase           7,067               3.0636
Purchase           138,722             3.0415
Purchase           1,300               3.0256
Purchase           125,074             2.9579
Purchase           22,580              3.0439
Purchase           60,588              3.0360
Purchase           71,071              3.0800
Purchase           2,418               2.9575
Purchase           17,732              2.9575
Purchase           15,763              3.0303
Purchase           3,312,832           3.0650
Purchase           1,415               2.9575
Purchase           5,968               2.9872
Sale               16,103              3.0494
Sale               1,300               3.0256
Sale               534                 3.0105
Sale               61,526              3.0714
Sale               16,128              3.0136
Sale               16,602              3.0313
Sale               33,600              3.0198
Sale               11,993              3.0120
Sale               40,201              2.9575
Sale               41,650              3.0416
Sale               10,000              3.0350
Sale               118,129             2.9575
Sale               3,468               2.9575
Sale               10,086              3.0666
Sale               5,626               3.0243

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            11993           3.012
CFD            Long            16128           3.0136
CFD            Long            5740            3.0222
CFD            Long            5626            3.0242
CFD            Long            1300            3.0256
CFD            Long            16602           3.0312
CFD            Long            16103           3.0493
CFD            Long            6086            3.0597
CFD            Long            61526           3.0714
CFD            Long            4000            3.077
CFD            Short           125074          2.9579
CFD            Short           5968            2.9872
CFD            Short           20661           3.017
CFD            Short           1300            3.0256
CFD            Short           15763           3.0303
CFD            Short           60588           3.036
CFD            Short           138722          3.0415
CFD            Short           22580           3.0439
CFD            Short           11993           3.0454

(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                         20 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