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               10 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     236,920,429     6.38%      2,247,084     0.06%
securities
(2) Derivatives   17,064,395     0.46%      1,067,027     0.03%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            254,854,809     6.86%      3,314,111     0.09%

(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           37,236              3.2178
Purchase           54,745              3.1867
Purchase           25,783              3.1887
Purchase           36,969              3.2112
Purchase           3,200               3.2300
Purchase           500                 3.1925
Purchase           3,361               3.2284
Purchase           5,963               3.1426
Purchase           200                 3.2225
Purchase           19,881              3.2300
Purchase           178                 Transfer
Purchase           29,709              3.1572
Purchase           4,345               3.3025
Purchase           12,310              3.1911
Sale               2,736               3.1955
Sale               330,587             3.2263
Sale               54,879              3.1749
Sale               486                 Transfer
Sale               5,600               3.1850
Sale               89                  Transfer
Sale               89                  Transfer
Sale               35,942              3.2021
Sale               35,079              3.1452
Sale               160                 3.1080
Sale               500                 3.1925
Sale               58,745              3.1863
Sale               200                 3.2225
Sale               17,396              3.1523
Sale               9,536               3.2225
Sale               14,142              3.2225

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD             Long         35079         3.1451
CFD             Long         17396         3.1523
CFD             Long         47947         3.1724
CFD             Long         54879         3.1749
CFD             Long         58745         3.1862
CFD             Long         36574         3.1924
CFD             Long         500           3.1925
CFD             Long         35942         3.2021
CFD             Long         200           3.2225
CFD             Long         330587        3.2263
CFD             Short        5963          3.1425
CFD             Short        88687         3.1655
CFD             Short        54745         3.1866
CFD             Short        25783         3.1886
CFD             Short        64711         3.1899
CFD             Short        12310         3.191
CFD             Short        500           3.1925
CFD             Short        36969         3.2112
CFD             Short        37236         3.2178
CFD             Short        200           3.2225

(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                         11 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