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               25 September 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     236,901,087     6.38%      2,858,429     0.08%
securities
(2) Derivatives   21,504,934     0.58%      2,529,068     0.07%
(other than
options)
(3) Options and      869,985     0.02%                    0.01%
agreements to
purchase/sell
Total            259,276,006     6.98%      5,387,497     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           2,832               3.2825
Purchase           14,413              3.2109
Purchase           222,798             3.3050
Purchase           63,753              3.2281
Purchase           130,990             3.2279
Purchase           150,518             3.2170
Purchase           64,968              3.2088
Purchase           800                 3.2563
Purchase           202,587             3.2125
Purchase           285,627             3.2182
Purchase           700,000             3.2196
Purchase           2,000               3.1980
Purchase           1,723               3.2175
Purchase           70,846              3.2468
Purchase           54,963              3.2468
Purchase           246,731             3.2391
Purchase           189,445             3.2334
Purchase           39,877              3.2381
Purchase           5,806               3.3275
Purchase           93,406              3.2175
Purchase           14,570              3.2345
Sale               700,000             3.2196
Sale               9,253               3.2684
Sale               187,860             3.2372
Sale               39,877              3.2175
Sale               1,800               3.2925
Sale               219,171             3.2775
Sale               324                 3.2779
Sale               534                 3.2804
Sale               3,010               Transfer
Sale               4,000               3.1995
Sale               9,033               3.2813
Sale               45,021              3.2749
Sale               700,000             3.2196
Sale               2,000               3.2358
Sale               1,980               3.2784
Sale               14,400              3.2200
Sale               10,000              3.2103
Sale               159,066             3.2834
Sale               800                 3.2563

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          4000          3.1995
CFD            Long          700000        3.2196
CFD            Long          187860        3.2372
CFD            Long           800          3.2562
CFD            Long          12880         3.2598
CFD            Long          9253          3.2684
CFD            Long          219171        3.2774
CFD            Long          32141         3.2808
CFD            Long          1800          3.2925
CFD            Short         2000          3.1979
CFD            Short         4067          3.2036
CFD            Short         64968         3.2088
CFD            Short         14413         3.2108
CFD            Short         202587        3.2124
CFD            Short         150518        3.217
CFD            Short         21536         3.2175
CFD            Short         285627        3.2181
CFD            Short         554761        3.2213
CFD            Short         188362        3.2279
CFD            Short         6381          3.229
CFD            Short         189445        3.2333
CFD            Short         14570         3.2344
CFD            Short         246731        3.239
CFD            Short         800           3.2562

(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)                 NO


Date of disclosure                         26 September 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