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 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     237,354,225     6.39%      4,504,630     0.12%
securities
(2) Derivatives   20,880,996     0.56%      2,733,291     0.07%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            258,235,221     6.96%      7,237,921     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         273                   3.2732
Purchase         313                   3.2732
Purchase         583,454               3.2716
Purchase         82,379                3.2913
Purchase         13,779                3.2732
Purchase         24,867                3.2913
Purchase         176,097               3.2716
Purchase         3,856                 3.2875
Purchase         861                   3.2732
Purchase         15,232                3.2696
Purchase         1,637                 3.2913
Purchase         11,520                3.2714
Purchase         16,821                3.2715
Purchase         399                   3.2732
Purchase         2,385                 3.2913
Purchase         13,227                3.2714
Purchase         4,159                 3.2732
Purchase         1,024                 3.2875
Purchase         135,411               3.2808
Purchase         5,714                 3.2875
Purchase         52,700                3.3133
Purchase         125,030               3.2115
Purchase         11,041                3.2605
Purchase         5,714                 3.2900
Purchase         155,130               3.2600
Purchase         36,545                3.2818
Purchase         36,442                3.2716
Purchase         9,312                 3.2600
Purchase         7,578                 3.2430
Purchase         23,661                3.2952
Purchase         9,312                 3.2600
Purchase         20,290                3.2832
Purchase         11,400                3.2595
Purchase         1,800                 3.2588
Purchase         3,315                 3.2711
Purchase         3,587                 3.2959
Purchase         24,290                3.2600
Purchase         437,151               3.2875
Purchase         5,899                 3.2600
Purchase         841                   3.2827
Purchase         5,139                 3.2913
Purchase         475                   3.2913
Purchase         1,878                 3.2913
Purchase         78                    3.2730
Purchase         444                   3.2913
Purchase         73                    3.2731
Purchase         3,100                 3.2712
Purchase         583                   3.2732
Purchase         4,509                 3.2913
Purchase         754                   3.2732
Purchase         31,904                3.2716
Purchase         2,158                 3.3112
Purchase         3,489                 3.2913
Purchase         16,983                3.2715
Purchase         24,637                3.2715
Purchase         429,490               3.2934
Purchase         2,409                 3.2913
Purchase         402                   3.2732
Sale             2,624                 3.2719
Sale             21,424                3.2776
Sale             64,562                3.2600
Sale             697                   3.2719
Sale             142,674               3.2865
Sale             1,123                 3.2719
Sale             14,132                3.2817
Sale             938                   3.2875
Sale             14,585                3.2680
Sale             114,498               3.1979
Sale             4,215                 3.2853
Sale             1,893                 3.2875
Sale             179,024               3.2880
Sale             13,024                3.2852
Sale             19,776                3.2600
Sale             63,676                3.2600
Sale             9,312                 3.2600
Sale             12,659                3.3034
Sale             8,172                 3.2853
Sale             3,856                 3.2875
Sale             1,024                 3.2875
Sale             712                   3.3003
Sale             1,220                 3.3003
Sale             178                   Transfer
Sale             9,219                 3.2852
Sale             131,101               3.2826
Sale             3,889                 Transfer
Sale             5,714                 3.2875

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          114498        3.1979
CFD            Long          14585         3.2679
CFD            Long          18824         3.2734
CFD            Long          14132         3.2816
CFD            Long          131101        3.2826
CFD            Long          142674        3.2865
CFD            Long          179024        3.2879
CFD            Long          12659         3.3034
CFD            Long          2600          3.3073
CFD            Short         125030        3.2114
CFD            Short         7578          3.2429
CFD            Short         1800          3.2587
CFD            Short         11400         3.2595
CFD            Short         11041         3.2604
CFD            Short         15232         3.2695
CFD            Short         135411        3.2808
CFD            Short         3182          3.2811
CFD            Short         36545         3.2818
CFD            Short         17108         3.2835
CFD            Short         13744         3.2903
CFD            Short         52700         3.3133


(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                         23 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