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               12 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     237,987,005     6.41%      2,254,341     0.06%
securities
(2) Derivatives   17,170,198     0.46%      1,517,426     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            256,027,188     6.89%      3,771,767     0.10%

(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           91,095              3.1514
Purchase           5,250               3.1754
Purchase           2,625               3.1375
Purchase           381,500             3.1375
Purchase           15,260              3.1375
Purchase           2,027               3.1825
Purchase           6,645               3.1375
Purchase           158,426             3.1519
Purchase           14,815              3.1457
Purchase           62,879              3.1417
Purchase           1,140               3.1330
Purchase           54,369              3.1408
Purchase           3,469               3.1375
Purchase           400                 3.1313
Sale               102,605             3.1515
Sale               15,206              3.1459
Sale               12,843              3.1590
Sale               15,289              3.1609
Sale               887                 3.1380
Sale               17,700              3.1575
Sale               685                 3.1355
Sale               51,969              3.1575
Sale               78,876              3.1513
Sale               180,199             3.1706
Sale               26                  3.2000
Sale               36,841              3.1853
Sale               154                 3.1870
Sale               400                 3.1313
Sale               2,700               3.1580
Sale               68,429              3.1582
Sale               14,777              3.1582
Sale               5,055               3.1582
Sale               9,713               3.1582
Sale               7,857               3.1582
Sale               5,538               3.1582
Sale               9,255               3.1582
Sale               17                  3.2000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          400           3.1312
CFD            Long          98517         3.1511
CFD            Long          78876         3.1512
CFD            Long          69669         3.1575
CFD            Long          12843         3.1589
CFD            Long          4088          3.1598
CFD            Long          15289         3.1609
CFD            Long          83007         3.1647
CFD            Long          180199        3.1706
CFD            Long          36841         3.1852
CFD            Long          154           3.187
CFD            Short         400           3.1312
CFD            Short         1140          3.133
CFD            Short         34087         3.1375
CFD            Short         54369         3.1407
CFD            Short         62879         3.1417
CFD            Short         14815         3.1457
CFD            Short         91095         3.1514
CFD            Short         158426        3.1519
CFD            Short         61307         3.1546
CFD            Short         29850         3.158

(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                         13 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