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               22 August 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     226,362,008     6.10%      6,667,842     0.18%
securities
(2) Derivatives   17,868,096     0.48%      3,573,454     0.10%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            244,230,104     6.58%     10,241,296     0.28%

(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      46,117               3.1251
Purchase      16,500               3.1180
Purchase      972                  Transfer
Purchase      1,066                Transfer
Purchase      64,602               3.1123
Purchase      136,545              3.1111
Purchase      17,829               3.1201
Purchase      267                  Transfer
Purchase      1,001                3.1150
Purchase      64,241               3.1135
Purchase      4,814                3.1351
Purchase      88,115               3.1350
Purchase      21,653               3.1350
Purchase      13,966               3.1097
Purchase      267                  Transfer
Purchase      4,814                3.1350
Purchase      39,498               3.1350
Purchase      178                  Transfer
Purchase      16,247               3.1350
Purchase      5,254                3.1350
Sale          230,297              3.0974
Sale          13,860               3.1109
Sale          1,001                3.1150
Sale          64,241               3.1350
Sale          972                  Transfer
Sale          793                  3.1000
Sale          17,829               3.1317
Sale          267                  Transfer
Sale          4,814                3.1351
Sale          1,726                3.1036
Sale          265,996              3.0425
Sale          7,457                3.1189
Sale          4,246                3.1189
Sale          25,388               3.1189
Sale          10,556               3.1350
Sale          178                  Transfer
Sale          43,510               3.1223
Sale          1,066                Transfer
Sale          8,027                3.1345
Sale          17,844               3.0867
Sale          144,039              3.1157
Sale          3,250                3.1350
Sale          267                  Transfer
Sale          121,363              3.1099
Sale          80,402               3.1350

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          19344         3.084
CFD            Long          230297        3.0974
CFD            Long          121363        3.1099
CFD            Long          13860         3.1108
CFD            Long          1001          3.1149
CFD            Long          144039        3.1157
CFD            Long          11923         3.116
CFD            Long          43510         3.1223
CFD            Long          17829         3.1317
CFD            Long          8027          3.1344
CFD            Short         136545        3.1111
CFD            Short         64602         3.1122
CFD            Short         1001          3.1149
CFD            Short         16500         3.1179
CFD            Short         17829         3.12
CFD            Short         46117         3.1251
CFD            Short         4814          3.135

(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                         26 August 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