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               21 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     246,473,518     6.64%      1,563,309     0.04%
securities
(2) Derivatives   16,869,204     0.45%      4,600,835     0.12%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            264,212,707     7.11%      6,164,144     0.17%


(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           1,000               2.7050
Purchase           1,200               2.7050
Purchase           700                 2.7050
Purchase           500                 2.7050
Purchase           3,500               2.7050
Purchase           700                 2.7050
Purchase           3,500               2.7050
Purchase           500                 2.7050
Purchase           3,500               2.7050
Purchase           1,000               2.7050
Purchase           82,996              2.7312
Purchase           500                 2.7050
Purchase           700                 2.7050
Purchase           3,705               2.6945
Purchase           600                 2.7050
Purchase           500                 2.7050
Purchase           615                 2.7050
Purchase           23,932              2.6775
Purchase           1,000               2.7050
Purchase           1,547               2.8376
Purchase           1,295               2.8376
Purchase           700                 2.7050
Purchase           1,614               2.8376
Purchase           500                 2.7050
Purchase           6,335               2.8376
Purchase           293,514             2.7209
Purchase           13,906              2.8376
Purchase           5,473               2.8376
Purchase           6,400               2.7261
Purchase           30,220              2.6722
Purchase           1,281               2.8376
Purchase           2,343               2.8376
Purchase           489,475             2.7461
Purchase           178,042             2.7405
Purchase           21,351              2.7150
Purchase           109,165             2.6775
Purchase           7,484               2.8376
Purchase           30,035              2.7075
Purchase           10,437              2.6775
Purchase           187,140             2.6775
Purchase           15,595              2.6775
Purchase           3,599               2.6775
Sale               350                 2.7000
Sale               650                 2.7000
Sale               4,877               2.7179
Sale               400                 2.7000
Sale               750                 2.7000
Sale               250                 2.7000
Sale               800                 2.7000
Sale               1,000               2.7000
Sale               2,500               2.7000
Sale               67,781              2.7179
Sale               500                 2.7000
Sale               600                 2.7000
Sale               560                 2.7000
Sale               1,000               2.7000
Sale               800                 2.7000
Sale               500                 2.7000
Sale               231,580             2.7179
Sale               70,955              2.7228
Sale               27,709              2.6966
Sale               6,400               2.7261
Sale               3,380               2.7043
Sale               927                 2.7000
Sale               350                 2.7000
Sale               23,932              2.6775
Sale               2,220               2.6671
Sale               32,893              2.7179
Sale               600                 2.7000
Sale               14,448              2.7179
Sale               880                 2.7000
Sale               650                 2.7000
Sale               525                 2.7000
Sale               1,000               2.7000
Sale               1,500               2.7000
Sale               900                 2.7000
Sale               56,353              2.6775
Sale               26,110              2.7179
Sale               500                 2.7000
Sale               945                 2.7055
Sale               12,375              2.7179
Sale               1,200               2.7000
Sale               490                 2.7000
Sale               825                 2.7000
Sale               600                 2.7000
Sale               1,000               2.7000
Sale               625                 2.7000
Sale               1,000               2.7000
Sale               750                 2.7000
Sale               420                 2.7000
Sale               800                 2.7000
Sale               1,000               2.7000
Sale               23,012              2.7179
Sale               8,179               2.7295
Sale               58,542              2.7295
Sale               3,500               2.6775
Sale               10,499              2.6775
Sale               11,280              2.7295
Sale               3,226               2.8189
Sale               8,551               2.7179
Sale               4,609               2.6775
Sale               96,788              2.7295
Sale               7,000               2.6775
Sale               6,701               2.7295
Sale               1,000               2.7000
Sale               600                 2.7000
Sale               750                 2.7000
Sale               710                 2.7000
Sale               500                 2.7000
Sale               490                 2.7000
Sale               730                 2.7000
Sale               65,107              2.7481
Sale               4,675               2.7179
Sale               60,343              2.7026
Sale               260                 2.7000
Sale               850                 2.7000
Sale               500                 2.7000
Sale               350                 2.7000
Sale               6,605               2.7179
Sale               600                 2.7000
Sale               500                 2.7000
Sale               750                 2.7000
Sale               1,500               2.7000
Sale               500                 2.7000
Sale               700                 2.7000
Sale               6,197               2.7179
Sale               775                 2.7000
Sale               1,000               2.7000
Sale               420                 2.7000
Sale               1,250               2.7000
Sale               750                 2.7000
Sale               500                 2.7000
Sale               700                 2.7000
Sale               660                 2.7000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            2220            2.667
CFD            Long            70615           2.6888
CFD            Long            55639           2.6956
CFD            Long            27709           2.6965
CFD            Long            170125          2.7024
CFD            Long            60343           2.7026
CFD            Long            70955           2.7228
CFD            Long            6400            2.726
CFD            Short           30220           2.6722
CFD            Short           30035           2.7074
CFD            Short           293514          2.7209
CFD            Short           6400            2.726
CFD            Short           82996           2.7312
CFD            Short           178042          2.7404
CFD            Short           489475          2.7461
CFD            Short           3739            2.7822

(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                         24 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