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               04 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     228,545,354     6.16%      4,311,089     0.12%
securities
(2) Derivatives   18,282,318     0.49%      2,916,677     0.08%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            246,827,672     6.65%      7,227,766     0.19%


(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      420,000               3.1611
Purchase      15,066                3.1725
Purchase      253,955               3.2283
Purchase      41,002                3.2114
Purchase      20,559                3.2089
Purchase      356                   Transfer
Purchase      1,710                 3.2250
Purchase      232,372               3.2062
Purchase      100                   3.1950
Purchase      7,964                 3.1505
Purchase      10,010                3.1742
Purchase      420,000               3.1611
Purchase      3,099                 3.1500
Purchase      49,535                3.1838
Purchase      112,076               3.1924
Purchase      34,293                3.2316
Purchase      1,600                 3.2450
Sale          344                   3.2284
Sale          1,600                 3.2450
Sale          100                   3.1950
Sale          14,200                3.2647
Sale          87,497                3.1909
Sale          6,700                 3.2288
Sale          18,920                3.2335
Sale          240,950               3.2240
Sale          76,345                3.2185
Sale          4,000                 3.1925
Sale          420,000               3.1611
Sale          42,154                3.2635
Sale          1,165                 3.1925
Sale          2,620                 3.2275
Sale          3,450                 3.1925
Sale          1,800                 3.1925
Sale          81                    3.1925
Sale          371                   3.1925
Sale          267                   3.2261
Sale          1,156                 3.1925
Sale          5,670                 3.1925
Sale          2,250                 3.1925
Sale          1,069                 3.1925
Sale          1,612                 3.1500
Sale          1,890                 3.1925
Sale          2,133                 3.1925
Sale          1,305                 3.1925
Sale          2,700                 3.1925
Sale          2,750                 3.1925
Sale          4,000                 3.1925
Sale          2,389                 3.1925
Sale          8,500                 3.1400
Sale          1,263                 3.1925
Sale          1,800                 3.1925
Sale          700                   3.1925
Sale          2,250                 3.1925
Sale          1,700                 3.1925
Sale          2,314                 3.1500
Sale          2,250                 3.1925

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          100           3.195
CFD            Long          118797        3.2121
CFD            Long          103029        3.2161
CFD            Long          76345         3.2185
CFD            Long          243235        3.223
CFD            Long          240950        3.2239
CFD            Long          18920         3.2334
CFD            Long          1600          3.245
CFD            Long          42154         3.2635
CFD            Long          14200         3.2646
CFD            Short         7964          3.1504
CFD            Short         420000        3.1611
CFD            Short         10010         3.1741
CFD            Short         49535         3.1837
CFD            Short         10270         3.1903
CFD            Short         87497         3.1909
CFD            Short         494382        3.191
CFD            Short         112076        3.1924
CFD            Short         100           3.195
CFD            Short         232372        3.2061
CFD            Short         20559         3.2088
CFD            Short         41002         3.2113
CFD            Short         253955        3.2283
CFD            Short         34293         3.2316
CFD            Short         1600          3.245

(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                         05 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