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 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     227,369,247     6.13%      4,915,988     0.13%
securities
(2) Derivatives   19,171,268     0.52%      2,709,663     0.07%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            246,540,515     6.64%      7,625,651     0.21%


(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      100                  3.3200
Purchase      79,272               3.3087
Purchase      48,081               3.3080
Purchase      28,466               3.3102
Purchase      398                  Transfer
Purchase      534                  Transfer
Purchase      3,056                3.3056
Purchase      3,068                3.3075
Purchase      4,400                3.2677
Purchase      2,084                3.3075
Purchase      1,999                3.3125
Purchase      115,080              3.2651
Purchase      201,364              3.2881
Purchase      171,141              3.3115
Purchase      411                  Transfer
Purchase      23,186               3.3302
Purchase      46,021               3.3025
Purchase      26,889               3.3302
Purchase      7,602                3.3080
Purchase      972                  Transfer
Purchase      35,697               3.2360
Purchase      7,711                3.3075
Purchase      10,891               3.3195
Purchase      42,296               3.2804
Sale          30                   3.3293
Sale          18,576               3.3276
Sale          173,424              3.3128
Sale          411                  Transfer
Sale          162,528              3.3197
Sale          6,383                3.3075
Sale          100                  3.3200
Sale          22,021               3.2772
Sale          4,400                3.2677
Sale          10,200               3.2827
Sale          1,999                3.3125
Sale          328,165              3.2782
Sale          48,999               3.3147
Sale          387,509              3.3143
Sale          184,911              3.3128
Sale          411                  3.3034
Sale          95,183               3.2750
Sale          48,081               3.3072
Sale          1,080                3.3211
Sale          38,390               3.2947
Sale          42,296               3.3155
Sale          156                  3.3388
Sale          201,364              3.2795
Sale          2,700                3.3000
Sale          900                  3.3125
Sale          675                  3.3125
Sale          1,250                3.3125
Sale          900                  3.3125
Sale          450                  3.3125
Sale          1,500                3.3125
Sale          4,950                3.3000
Sale          398                  Transfer
Sale          1,980                3.3000
Sale          6,660                3.3000
Sale          684                  3.3358
Sale          3,600                3.3000
Sale          2,000                3.3125
Sale          562                  3.3300
Sale          563                  3.3300
Sale          9,428                3.3000
Sale          78,520               3.2800
Sale          4,500                3.3000
Sale          900                  3.3125
Sale          168,040              3.2872
Sale          747                  3.3358
Sale          1,377                3.3358
Sale          102,656              3.3075
Sale          1,250                3.3125
Sale          19,800               3.3125
Sale          1,100                3.3125
Sale          2,250                3.3000
Sale          810                  3.3125
Sale          2,075                3.3000
Sale          450                  3.3125
Sale          3,000                3.3000
Sale          4,300                3.3000
Sale          2,700                3.3000
Sale          1,350                3.3000
Sale          3,500                3.3000
Sale          5,365                3.3000
Sale          15,066               3.3100
Sale          450                  3.3125

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          48081         3.3071
CFD            Long          6383          3.3074
CFD            Long          1999          3.3124
CFD            Long          358335        3.3127
CFD            Long          387509        3.3143
CFD            Long          48999         3.3147
CFD            Long          42296         3.3155
CFD            Long          126675        3.3185
CFD            Long          162528        3.3196
CFD            Long          100           3.32
CFD            Long          362668        3.3205
CFD            Long          143143        3.3209
CFD            Long          18576         3.3276
CFD            Long          30            3.3293
CFD            Short         46021         3.3025
CFD            Short         55683         3.3079
CFD            Short         79272         3.3087
CFD            Short         28466         3.3102
CFD            Short         171141        3.3114
CFD            Short         1999          3.3124
CFD            Short         100           3.32

(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)                 NO


Date of disclosure                         03 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