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               01 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     222,733,039     6.00%     30,378,598     0.82%
securities
(2) Derivatives   48,619,069     1.31%      9,347,380     0.25%
(other than
options)
(3) Options and      977,237     0.03%              0     0.00%
agreements to
purchase/sell
Total           272,329,345      7.33%     39,725,978     1.07%

(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           114,444              2.0875
Purchase           62,484               2.3450
Purchase           7,814                2.2472
Purchase           13,304               2.2472
Purchase           119,321              2.2225
Purchase           35,284               2.2303
Purchase           1,936                2.2472
Purchase           13,864               2.2303
Purchase           4,880                2.2472
Purchase           74,146               2.2708
Purchase           716                  2.3000
Purchase           86,346               2.2303
Purchase           4,750                2.2472
Purchase           6,870                2.2472
Purchase           5,611                2.3875
Purchase           14,115               2.1070
Purchase           69,420               2.0875
Purchase           47,782               2.2150
Purchase           1,423,838            2.1779
Purchase           6,856                2.3650
Purchase           20,000               2.1028
Purchase           35,639               2.1969
Purchase           21,324               2.2216
Purchase           42,800               2.1370
Purchase           1,197,179            2.1817
Purchase           5,405                2.2472
Purchase           3,393                2.2472
Purchase           26,465               2.2472
Purchase           39,166               2.2303
Purchase           13,830               2.2472
Purchase           20,042               2.2303
Purchase           43,961               2.2303
Purchase           27,033               2.2303
Purchase           9,617                2.0875
Purchase           9,719                2.2472
Purchase           9,531                2.2472
Purchase           23,640               2.2472
Purchase           9,856                2.2200
Purchase           22,230               2.0875
Purchase           37,093               2.2303
Purchase           19,905               2.2303
Purchase           2,259                2.2472
Purchase           15,403               2.0875
Purchase           4,751                2.2472
Purchase           92,432               2.0875
Purchase           13,954               2.2472
Purchase           40,360               2.1113
Purchase           3,619                2.0875
Purchase           57,446               2.2303
Purchase           28,686               2.0875
Sale               534                  Transfer
Sale               5,113                Transfer
Sale               167,417              2.2751
Sale               215,710              2.2457
Sale               84,985               2.1288
Sale               23,014               2.0875
Sale               104,115              2.2006
Sale               205,000              2.1685
Sale               6,856                2.3650
Sale               1,080                2.3746
Sale               4,289                2.0875
Sale               20,278               2.2296
Sale               7,552,132            2.1896
Sale               14,343               2.0875
Sale               720                  2.3205
Sale               720                  2.3205
Sale               54,288               2.1951
Sale               894                  Transfer
Sale               136,679              2.3642
Sale               425,407              2.3650
Sale               716                  2.3000
Sale               370,313              2.0898

(b)  Derivatives transactions (other than options)
Product name,  Long/Short      Number of       Price per
(e.g. CFD)     (Note 6)        Securities      unit (GBP)
CFD            Long            370313          2.0897
CFD            Long            4289            2.0998
CFD            Long            84985           2.1287
CFD            Long            205000          2.1684
CFD            Long            7552132         2.1896
CFD            Long            8126            2.1906
CFD            Long            370233          2.1912
CFD            Long            54288           2.195
CFD            Long            104115          2.2006
CFD            Long            211421          2.2486
CFD            Long            167417          2.2751
CFD            Long            716             2.3
CFD            Long            136679          2.3642
CFD            Long            1080            2.3746
CFD            Short           20000           2.1028
CFD            Short           14115           2.107
CFD            Short           42800           2.137
CFD            Short           1423838         2.1778
CFD            Short           1197179         2.1816
CFD            Short           35639           2.1969
CFD            Short           47782           2.215
CFD            Short           21324           2.2215
CFD            Short           716             2.3

(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                         02 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