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               02 December 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     213,884,037     5.76%     40,886,028     1.10%
securities
(2) Derivatives   62,201,905     1.67%      9,111,874     0.25%
(other than
options)
(3) Options and      977,237     0.03%              0     0.00%
agreements to
purchase/sell
Total            277,063,179     7.46%     49,997,902     1.35%

(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           6,932               2.1775
Purchase           54,573              2.1360
Purchase           80,969              2.1448
Purchase           113,412             2.1105
Purchase           8,100               2.0875
Purchase           25,751              2.1099
Purchase           1,736               2.1775
Purchase           15,890              2.0750
Purchase           205,355             2.1775
Purchase           66,430              2.1775
Purchase           14,592              2.1078
Purchase           74,603              2.1139
Purchase           30,487              2.1108
Purchase           1,206               2.1046
Purchase           69,279              2.1448
Purchase           36,701              2.1449
Purchase           34,646              2.1449
Purchase           26,339              2.1449
Purchase           21,131              2.1449
Purchase           27,143              2.1449
Purchase           2,267               2.1025
Purchase           12,716              2.1775
Purchase           29,096              2.1775
Purchase           12,000              2.0875
Purchase           8,133               2.1775
Purchase           3,542               2.1775
Purchase           42,873              2.1051
Purchase           437,649             2.0919
Purchase           1,272,746           2.1448
Purchase           14,372              2.1775
Purchase           66,056              2.1026
Purchase           12,797              2.1051
Purchase           379,951             2.1448
Sale               25,880              2.1131
Sale               1,800               2.0826
Sale               297,529             2.0875
Sale               12,377              2.1775
Sale               9,562               2.1775
Sale               13,605              2.1775
Sale               2,875               2.1775
Sale               11,433              2.1775
Sale               6,539               2.0800
Sale               8,100               2.0875
Sale               34,700              2.1493
Sale               210,365             2.0825
Sale               24,451              2.0804
Sale               335                 2.0800
Sale               66,060              2.1112
Sale               9,731               2.1112
Sale               12,000              2.0875
Sale               778,195             2.1046
Sale               1,606               2.1775
Sale               10,520,366          2.1067
Sale               50,600              2.1513
Sale               4,666               2.0772

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            4666            2.0771
CFD            Long            335             2.08
CFD            Long            24451           2.0804
CFD            Long            778195          2.1045
CFD            Long            10520366        2.1067
CFD            Long            9731            2.1111
CFD            Long            66060           2.1112
CFD            Long            25880           2.1131
CFD            Long            1111546         2.1145
CFD            Long            1234842         2.1293
CFD            Long            253584          2.1394
CFD            Long            34700           2.1493
CFD            Long            50600           2.1513
CFD            Long            481973          2.1657
CFD            Short           36067           2.0834
CFD            Short           437649          2.0919
CFD            Short           66056           2.1025
CFD            Short           14592           2.1078
CFD            Short           25751           2.1098
CFD            Short           113412          2.1105
CFD            Short           30487           2.1108
CFD            Short           54573           2.1359

(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                         03 December 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