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               06 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     225,437,792      6.08%     8,185,686      0.22%
securities
(2) Derivatives   18,209,755      0.49%     3,180,728      0.09%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total            243,647,547      6.57%    11,366,414      0.31%

(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      534                  Transfer
Purchase      5,250                2.9738
Purchase      884,777              2.9975
Purchase      124,758              2.9954
Purchase      590,023              2.9946
Purchase      243,450              2.9950
Purchase      692,434              3.0011
Purchase      111,180              2.9928
Purchase      1,026,248            2.9958
Purchase      60,000               3.0293
Purchase      34,683               2.9962
Purchase      153,874              3.0025
Purchase      72,160               2.9991
Purchase      307,749              3.0000
Purchase      76,937               3.0000
Purchase      153,874              3.0025
Purchase      35,977               2.9908
Purchase      6,940                3.0300
Purchase      4,326                2.9908
Purchase      3,431                2.9908
Purchase      3,417                2.9908
Purchase      6,940                3.0300
Purchase      77,877               2.9948
Purchase      677                  Transfer
Sale          60,000               3.0252
Sale          131,895              2.9976
Sale          281,020              2.9950
Sale          810                  2.9866
Sale          1,600                2.9850
Sale          70,381               3.0296
Sale          11,562               2.9976
Sale          445                  2.9958
Sale          65,956               3.0017
Sale          3,800                3.0043
Sale          281,020              2.9950
Sale          42,312               2.9980
Sale          3,644                3.0300
Sale          12,459               3.0295
Sale          28,438               2.9922
Sale          1,682                3.0300
Sale          677                  Transfer
Sale          1,026,248            2.9958
Sale          5,476                3.0172
Sale          40,657               2.9922
Sale          147,892              2.9922
Sale          3,578,319            Transfer
Sale          10,940               2.9885
Sale          1,700                2.9957
Sale          884,777              2.9975
Sale          692,434              3.0011

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
05/08/2008    Sale              10,000                   3.0280

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1600          2.985
CFD            Long          10940         2.9884
CFD            Long          1026248       2.9958
CFD            Long          143457        2.9976
CFD            Long          42312         2.9979
CFD            Long          65956         3.0016
CFD            Long          3800          3.0042
CFD            Long          5476          3.0171
CFD            Long          60000         3.0251
CFD            Long          12459         3.0295
CFD            Long          70381         3.0296
CFD            Short         5250          2.9737
CFD            Short         178647        2.9907
CFD            Short         111180        2.9927
CFD            Short         590023        2.9945
CFD            Short         77877         2.9948
CFD            Short         124758        2.9954
CFD            Short         1026248       2.9958
CFD            Short         34683         2.9962
CFD            Short         11562         2.9977
CFD            Short         72160         2.9991
CFD            Short         60000         3.0293
CFD            Short         34641         3.0294

NB: The below transactions which were previously disclosed have been cancelled
Deal Date       Long/Short      Number of Securities      Price per unit (GBP)
05/08/2008      Long            10,000                    3.028

(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                         07 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