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               16 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     239,998,135     6.46%      2,030,457     0.05%
securities
(2) Derivatives   20,625,237     0.56%      1,463,938     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,493,357     7.04%      3,494,395     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           164,414             2.8495
Purchase           2,624               2.8575
Purchase           8,562               2.8485
Purchase           45,780              2.8500
Purchase           15,096              2.8575
Purchase           128,452             2.8542
Purchase           44,287              2.7975
Purchase           104,554             2.8575
Purchase           6,938               2.8575
Purchase           135,565             2.8391
Purchase           39,676              2.8575
Purchase           47,398              2.8449
Purchase           1,612               2.8575
Purchase           141,022             2.8575
Purchase           2,900               2.8700
Purchase           46,539              2.8550
Purchase           64,484              2.8529
Purchase           700                 2.8600
Purchase           132,128             2.8504
Purchase           3,060               2.8550
Purchase           1,343               2.8575
Purchase           759                 2.8225
Purchase           332,876             2.8094
Purchase           18,825              2.8478
Purchase           1,100               2.8275
Purchase           82,233              2.8439
Purchase           65,800              2.8678
Sale               1,100               2.8275
Sale               2,113               Transfer
Sale               196,293             2.8423
Sale               2,900               2.8700
Sale               202,950             2.8428
Sale               37,702              2.8555
Sale               3,150               2.8305
Sale               82,263              2.8398
Sale               279,235             2.8575
Sale               117,300             2.8225
Sale               700                 2.8600
Sale               139,914             2.8374
Sale               269,740             2.8408
Sale               45,780              2.8500
Sale               759                 2.8225
Sale               2,748               Transfer
Sale               46,539              2.8550
Sale               25,836              2.8449
Sale               1,299               2.8380
Sale               80,263              2.8520
Sale               8,660               2.8495
Sale               57,400              2.8330
Sale               759                 2.8575
Sale               723                 2.8230
Sale               64,881              2.8387
Sale               57,562              2.8328
Sale               85,300              2.8269

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1100          2.8275
CFD            Long          57562         2.8327
CFD            Long          139914        2.8374
CFD            Long          64881         2.8387
CFD            Long          103751        2.8392
CFD            Long          82263         2.8398
CFD            Long          165989        2.8417
CFD            Long          196293        2.8422
CFD            Long          202950        2.8427
CFD            Long          25836         2.8448
CFD            Long          8660          2.8495
CFD            Long          80263         2.852
CFD            Long          279608        2.8529
CFD            Long          37702         2.8554
CFD            Long          700           2.86
CFD            Short         332876        2.8093
CFD            Short         1100          2.8275
CFD            Short         135565        2.839
CFD            Short         82233         2.8438
CFD            Short         47398         2.8448
CFD            Short         80272         2.8486
CFD            Short         164414        2.8495
CFD            Short         132128        2.8504
CFD            Short         64484         2.8528
CFD            Short         128452        2.8542
CFD            Short         3060          2.855
CFD            Short         700           2.86
CFD            Short         65800         2.8677

(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                         17 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