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               07 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     239,542,245     6.45%      2,764,239     0.07%
securities
(2) Derivatives   20,981,582     0.57%      2,996,640     0.08%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,393,812     7.04%      5,760,879     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           4,648               3.0150
Purchase           151,219             3.0043
Purchase           49,022              3.0202
Purchase           7,596               3.0160
Purchase           107,652             2.9999
Purchase           576,479             3.0148
Purchase           6,103               3.0241
Purchase           1,000               3.0185
Purchase           60,621              3.0173
Purchase           243,452             3.0183
Purchase           370,991             3.0003
Purchase           133                 Transfer
Purchase           114,299             3.0326
Purchase           79,420              3.0070
Purchase           100,000             3.0275
Purchase           10,684              3.0275
Purchase           45,096              3.1375
Purchase           134                 Transfer
Purchase           6,940               3.0275
Purchase           4,060               3.0275
Purchase           3,470               3.0275
Purchase           8,737               3.0100
Purchase           5,600               3.0425
Purchase           98,562              3.0335
Sale               45,303              3.0334
Sale               30,577              3.0115
Sale               1,000               3.0185
Sale               5,600               3.0425
Sale               83,740              3.0282
Sale               4,500               3.0128
Sale               249,517             3.0142
Sale               82,506              3.0077
Sale               5,448               3.0133
Sale               8,683               3.0152
Sale               40,212              3.0275
Sale               8,354               3.0275
Sale               10,757              3.0275
Sale               3,356               3.0275
Sale               322,586             3.0275
Sale               13,704              3.0275
Sale               909                 3.0325
Sale               45                  2.9851
Sale               283,482             3.0155
Sale               51,328              3.0275
Sale               18,384              3.0146
Sale               134                 Transfer
Sale               107,652             2.9999
Sale               263,206             3.0071
Sale               133                 Transfer
Sale               174,866             2.9875
Sale               2,500               3.0225
Sale               588,202             3.0143
Sale               128,320             3.0275

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          107652        2.9998
CFD            Long          263206        3.007
CFD            Long          82506         3.0077
CFD            Long          30577         3.0115
CFD            Long          4500          3.0128
CFD            Long          5448          3.0133
CFD            Long          249517        3.0141
CFD            Long          588202        3.0143
CFD            Long          18384         3.0145
CFD            Long          8683          3.0151
CFD            Long          283482        3.0154
CFD            Long          142382        3.0183
CFD            Long          1000          3.0185
CFD            Long          142499        3.0202
CFD            Long          83740         3.0281
CFD            Long          45303         3.0333
CFD            Short         107652        2.9998
CFD            Short         370991        3.0003
CFD            Short         151219        3.0043
CFD            Short         79420         3.007
CFD            Short         25335         3.0102
CFD            Short         576479        3.0148
CFD            Short         4648          3.015
CFD            Short         7596          3.0159
CFD            Short         243452        3.0183
CFD            Short         1000          3.0185
CFD            Short         49022         3.0201
CFD            Short         35286         3.0224
CFD            Short         6103          3.024
CFD            Short         39517         3.0275
CFD            Short         114299        3.0326

(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                         08 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