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               28 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     228,543,761     6.16%      4,603,952     0.12%
securities
(2) Derivatives   17,834,057     0.48%      3,574,742     0.10%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            246,377,818     6.64%      8,178,694     0.22%

(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      153,877               3.2025
Purchase      148,182               3.1968
Purchase      40                    Transfer
Purchase      100                   3.2375
Purchase      395,720               3.1809
Purchase      153,877               3.2025
Purchase      61,551                3.2225
Purchase      21                    Transfer
Purchase      40,108                3.2042
Purchase      1,500                 3.1792
Purchase      60,860                3.2150
Purchase      40,108                3.2041
Purchase      10,950                3.1780
Purchase      461,632               3.2025
Purchase      667,800               3.2646
Purchase      243                   Transfer
Purchase      3,135                 3.2138
Purchase      20,813                3.2338
Purchase      1,341                 3.1738
Purchase      1,156                 3.1744
Purchase      3,419                 3.1763
Purchase      6,682                 3.1763
Purchase      20                    Transfer
Purchase      28,597                3.1691
Purchase      3,196                 3.2138
Purchase      667,800               3.2646
Purchase      3,148                 3.2138
Purchase      3,135                 3.2138
Purchase      18,809                3.2138
Purchase      63,759                3.2138
Purchase      4,004                 3.2355
Purchase      395,720               3.1809
Purchase      43,773                3.1715
Sale          40,171                3.2476
Sale          395,720               3.1809
Sale          100                   3.2375
Sale          5,180                 3.1700
Sale          40                    3.2234
Sale          82                    3.1734
Sale          40                    Transfer
Sale          8,413                 3.2184
Sale          21                    Transfer
Sale          691                   3.2287
Sale          4,491                 3.1700
Sale          9,508                 3.1772
Sale          667,800               3.2646
Sale          60,860                3.2311
Sale          5,000                 3.2220
Sale          99,223                3.1925
Sale          1,500                 3.1792
Sale          20                    Transfer
Sale          2,002                 3.2620
Sale          40,108                3.2042
Sale          215,280               3.2054
Sale          342,671               3.2080
Sale          61,551                3.2225

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          38955         3.1747
CFD            Long          33726         3.1754
CFD            Long          193618        3.1763
CFD            Long          9508          3.1771
CFD            Long          99081         3.1785
CFD            Long          1500          3.1791
CFD            Long          99223         3.1924
CFD            Long          215280        3.2053
CFD            Long          342671        3.208
CFD            Long          313543        3.2134
CFD            Long          5000          3.222
CFD            Long          602740        3.2348
CFD            Long          100           3.2375
CFD            Long          40171         3.2475
CFD            Long          2002          3.262
CFD            Short         36020         3.1673
CFD            Short         28597         3.169
CFD            Short         10950         3.178
CFD            Short         1500          3.1791
CFD            Short         395720        3.1808
CFD            Short         148182        3.1967
CFD            Short         40108         3.2042
CFD            Short         4004          3.2354
CFD            Short         100           3.2375
CFD            Short         667800        3.2645

(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                         29 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