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               03 October 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     239,694,561     6.46%      2,973,466     0.08%
securities
(2) Derivatives   20,948,310     0.56%      2,766,206     0.07%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,512,856     7.04%      5,739,672     0.15%

(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           Price per unit
                   Securities          (GBP)
Purchase           62,744              3.1733
Purchase           104,663             3.1707
Purchase           21,844              3.1686
Purchase           28,400              3.1589
Purchase           60,987              3.1783
Purchase           5,605               3.1809
Purchase           13,880              3.1525
Purchase           24,532              3.1580
Purchase           2,000               3.1555
Purchase           267,688             3.1608
Purchase           57,480              3.1631
Purchase           500                 3.1825
Purchase           8,295               3.1525
Purchase           5,081               3.1938
Purchase           300,971             3.2100
Purchase           53,800              3.1779
Purchase           16,343              3.1937
Purchase           95,354              3.1525
Purchase           9,346               3.1525
Purchase           8,354               3.1661
Purchase           501                 3.1575
Sale               60,987              3.1525
Sale               77,565              3.1730
Sale               282,758             3.1604
Sale               501                 3.1575
Sale               88,010              3.1716
Sale               15,778              3.1804
Sale               78,768              3.1664
Sale               106,166             3.1706
Sale               500                 3.1825
Sale               73,512              3.1624
Sale               12,000              3.1698
Sale               21,600              3.1642
Sale               23,497              3.1716
Sale               29,458              3.1525
Sale               300,971             3.2100
Sale               16,708              3.2100
Sale               33,900              3.1835

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          501           3.1575
CFD            Long          9308          3.1582
CFD            Long          282758        3.1603
CFD            Long          73512         3.1623
CFD            Long          21600         3.1642
CFD            Long          26998         3.1647
CFD            Long          51770         3.1672
CFD            Long          12000         3.1697
CFD            Long          106166        3.1706
CFD            Long          88010         3.1715
CFD            Long          23497         3.1716
CFD            Long          500           3.1825
CFD            Long          33900         3.1834
CFD            Short         40317         3.1525
CFD            Short         2000          3.1554
CFD            Short         501           3.1575
CFD            Short         24532         3.1579
CFD            Short         28400         3.1588
CFD            Short         45359         3.1601
CFD            Short         267688        3.1607
CFD            Short         21844         3.1686
CFD            Short         104663        3.1706
CFD            Short         62744         3.1733
CFD            Short         12121         3.1744
CFD            Short         53800         3.1779
CFD            Short         500           3.1825

(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)                 YES


Date of disclosure                         06 October 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)


SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   869,985                4.0304           EURO           18/12/2008

Notes

1. Where there are open option positions or open derivative positions (except for CFD's), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk