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               24 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     246,004,638     6.62%      2,539,170     0.07%
securities
(2) Derivatives   17,979,112     0.48%      4,069,002     0.11%
(other than
options)
(3) Options and      977,237     0.03%              0     0.00%
agreements to
purchase/sell
Total            264,960,987     7.13%      6,608,172     0.18%

(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           10,585              2.6775
Purchase           648                 2.6775
Purchase           48,820              2.6775
Purchase           31,165              2.5952
Purchase           76,138              2.6775
Purchase           93,062              2.5939
Purchase           2,036,980           2.6775
Purchase           3,249,636           2.6775
Purchase           1,795               2.6775
Purchase           4,807,166           2.6775
Purchase           63,224              2.7400
Purchase           33,462              2.6429
Purchase           200                 2.6775
Purchase           3,600               2.5957
Purchase           29,939              2.7400
Purchase           197,854             2.5907
Purchase           1,562,457           2.6775
Purchase           21,640              2.6259
Purchase           25,786              2.6775
Purchase           2,967               2.5125
Purchase           107,685             2.6216
Purchase           39,442              2.5069
Purchase           158,085             2.6175
Purchase           64,155              2.7400
Purchase           1,612               2.7400
Purchase           119,756             2.7400
Purchase           115,479             2.7400
Purchase           64,155              2.7400
Purchase           89,012              2.7400
Purchase           3,599               2.7400
Purchase           550                 2.5845
Purchase           1,574               2.6775
Purchase           7,467               2.6175
Purchase           5,427               2.7400
Purchase           203                 2.6775
Purchase           800                 2.6428
Purchase           99,949              2.6175
Purchase           12,678              2.5844
Purchase           2,036,980           2.6775
Purchase           320,346             2.6175
Purchase           4,352               2.6775
Purchase           13,011              2.7400
Sale               1,054               2.4000
Sale               648                 2.6775
Sale               25,786              2.6775
Sale               1,562,457           2.6775
Sale               31,224              2.6085
Sale               64,155              2.7400
Sale               3,600               2.5957
Sale               63,224              2.7400
Sale               82,211              2.5785
Sale               2,537               2.7400
Sale               520                 2.5805
Sale               585                 2.5730
Sale               113,777             2.7400
Sale               5,550               2.3500
Sale               82,951              2.7400
Sale               4,352               2.6775
Sale               10,585              2.6775
Sale               76,138              2.6775
Sale               780                 2.5780
Sale               2,967               2.5125
Sale               200                 2.6775
Sale               2,036,980           2.6775
Sale               3,249,636           2.6775
Sale               2,036,980           2.6775
Sale               393,205             2.5911
Sale               4,807,166           2.6775
Sale               407                 Transfer
Sale               1,993               2.7400
Sale               1,795               2.6775
Sale               125,640             2.6116
Sale               334,662             2.6390
Sale               1,574               2.6775
Sale               116,401             2.5957
Sale               741,558             2.6939
Sale               48,820              2.6775
Sale               203                 2.6775

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            1740            2.5123
CFD            Long            2967            2.5125
CFD            Long            37330           2.5565
CFD            Long            82211           2.5784
CFD            Long            393205          2.591
CFD            Long            3600            2.5956
CFD            Long            116401          2.5957
CFD            Long            31224           2.6085
CFD            Long            125640          2.6115
CFD            Long            332922          2.6396
CFD            Long            242480          2.6428
CFD            Long            33462           2.6429
CFD            Long            741558          2.6938
CFD            Short           39442           2.5068
CFD            Short           2967            2.5125
CFD            Short           197854          2.5906
CFD            Short           93062           2.5939
CFD            Short           31165           2.5952
CFD            Short           3600            2.5956
CFD            Short           21640           2.6258
CFD            Short           34262           2.6428
CFD            Short           79007           2.6872

(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)

Call           Selling           107,252           3.58        EURO           18/12/2008  0.00


(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                         25 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   977,237                3.5881           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