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               23 September 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     237,975,268     6.41%      1,895,228     0.05%
securities
(2) Derivatives   20,583,998     0.55%      2,401,486     0.06%
(other than
options)
(3) Options and      869,985     0.02%                    0.01%
agreements to
purchase/sell
Total            259,429,251     6.99%      4,296,714     0.12%

(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 Securities  Price per unit
                                       (GBP)
Purchase         155,130               3.2600
Purchase         13,526                3.2955
Purchase         1,800                 3.3000
Purchase         140,248               3.2952
Purchase         464,516               3.2952
Purchase         4,639                 3.2824
Purchase         10,661                3.2955
Purchase         14,473                3.2631
Purchase         9,307                 3.2956
Purchase         153,862               3.2767
Purchase         400                   3.2500
Purchase         8,000                 3.3180
Purchase         2,000                 3.2680
Purchase         24,211                3.2650
Purchase         810                   Transfer
Purchase         123,791               3.2799
Purchase         4,304                 3.2917
Purchase         2,623                 3.3020
Purchase         13,662                3.2955
Purchase         97,824                3.2600
Purchase         25,459                3.2953
Purchase         211,600               3.2659
Purchase         2,550                 3.2962
Purchase         61,140                3.3050
Purchase         2,732                 3.2961
Purchase         19,758                3.2954
Purchase         28,934                3.2951
Purchase         24,211                3.2650
Sale             8,336                 3.2529
Sale             1,800                 3.3000
Sale             93                    3.2879
Sale             206,037               3.2812
Sale             810                   Transfer
Sale             400                   3.2500
Sale             28,617                3.2689
Sale             155,130               3.2600
Sale             1,000                 3.3075
Sale             4,543                 3.3125
Sale             24,211                3.2650
Sale             6,329                 3.2631
Sale             2,372                 3.2860
Sale             8,896                 3.2860
Sale             2,821                 3.2600
Sale             10,150                3.2569
Sale             2,054                 3.2569
Sale             52,992                3.3133
Sale             105,866               3.3050
Sale             132,956               3.2890
Sale             3,806                 3.2860
Sale             118,654               3.2780
Sale             12,511                3.2529
Sale             90,000                3.3050
Sale             8,775                 3.3245
Sale             554                   Transfer
Sale             12,815                3.3050

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          400           3.25
CFD            Long          15530         3.2616
CFD            Long          13087         3.2775
CFD            Long          118654        3.278
CFD            Long          206037        3.2812
CFD            Long          132956        3.289
CFD            Long          1800          3.3
CFD            Long          1000          3.3075
CFD            Long          4543          3.3125
CFD            Long          52992         3.3132
CFD            Long          8775          3.3245
CFD            Short         400           3.25
CFD            Short         14473         3.263
CFD            Short         211600        3.2658
CFD            Short         2000          3.2679
CFD            Short         153862        3.2767
CFD            Short         123791        3.2799
CFD            Short         1800          3.3
CFD            Short         5041          3.305
CFD            Short         8000          3.3179

(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            Purchase          869985            4.0304     EURO        18/12/2008   2.15

(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)                 NO


Date of disclosure                         24 September 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)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk