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               06 October 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     240,021,331     6.46%      2,809,605     0.08%
securities
(2) Derivatives   20,784,449     0.56%      3,044,569     0.08%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,675,765     7.05%      5,854,174     0.16%

(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           2,000               3.0955
Purchase           1,700               3.0965
Purchase           22,981              2.9879
Purchase           1,600               3.1525
Purchase           156,422             3.0453
Purchase           87,104              3.0800
Purchase           472,436             3.0887
Purchase           412,881             3.0728
Purchase           6,055               3.1340
Purchase           460                 3.0603
Purchase           138,125             3.0917
Purchase           6,940               2.9875
Purchase           43,100              3.1525
Purchase           165,162             3.0635
Purchase           2,533               2.9875
Purchase           2,622               3.0967
Purchase           3,662               2.9875
Purchase           39,728              3.1525
Purchase           19,033              2.9875
Purchase           96,000              3.0889
Purchase           1,683               3.1600
Purchase           47,010              3.0868
Purchase           19,880              3.0769
Purchase           174,866             2.9875
Sale               154,823             3.1400
Sale               1,600               3.1525
Sale               16,819              3.0974
Sale               250                 3.1500
Sale               86,206              3.0929
Sale               20,036              3.1190
Sale               25,000              3.0025
Sale               108,591             2.9875
Sale               6,055               3.0795
Sale               333,342             3.1299
Sale               38,496              2.9875
Sale               20,960              3.0773
Sale               83,964              3.1196
Sale               43,100              3.1525
Sale               1,700               3.0965
Sale               473,110             3.0908
Sale               250                 3.1375
Sale               182,733             3.0906
Sale               178                 Transfer

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          17609         3.0722
CFD            Long          15745         3.0723
CFD            Long          20960         3.0773
CFD            Long          6055          3.0795
CFD            Long          473110        3.0907
CFD            Long          1700          3.0964
CFD            Long          70461         3.0975
CFD            Long          20036         3.119
CFD            Long          83964         3.1195
CFD            Long          333342        3.1299
CFD            Short         22981         2.9879
CFD            Short         156422        3.0453
CFD            Short         460           3.0603
CFD            Short         165162        3.0635
CFD            Short         412881        3.0728
CFD            Short         71191         3.0753
CFD            Short         19880         3.0769
CFD            Short         472436        3.0887
CFD            Short         138125        3.0917
CFD            Short         2000          3.0954
CFD            Short         1700          3.0964
CFD            Short         15913         3.101
CFD            Short         6055          3.134

(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                         07 October 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