Rule 8.3

    Rule 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  (Note 1)         Newton Investment Management
                                         Limited & its subsidiaries
Company dealt in                         Centrica PLC
Class of relevant security to which the  Ordinary GBP0.061728395
dealings being disclosed relate  (Note
2)
Date of dealing                          10/09/08


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)



BHP Billiton PLC                           Long            Short
                                           Number     (%)  Number (%)
(1) Relevant securities                    92,349,627 2.49
(2) Derivatives (other than options)
(3) Options and agreements to
purchase/sell
Total                                      92,349,627 2.49



 (b) Interests and short positions in relevant securities of the
     company, other than the class dealt in (Note 3)



 Class of relevant security:                Long       Short
                                            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 (Note 5)
Purchase of    2,000                £3.2225
Purchase of    19,000               £3.189807


(b)       Derivatives transactions (other than options)


Product name, Long/short (Note Number of securities     Price per
e.g. CFD      6)               (Note 7)                 unit (Note 5)



(c)        Options transactions in respect of existing securities
(i)         Writing, selling, purchasing or varying


Product   Writing,    Number of  Exercise Type,     Expiry Option
name,e.g. selling,    securities price    e.g.      date   moneypaid/received
call      purchasing, to which            American,        per unit (Note 5)
option    varying     the option          European
          etc.        relates             etc.
                      (Note 7)





(ii)        Exercising


Product name, e.g. call Number of securities Exercise price per unit
option                                       (Note 5)




(d)       Other dealings (including new securities) (Note 4)


Nature of transaction (Note Details Price per unit (if applicable)
8)                                  (Note 5)




4.         OTHER INFORMATION

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.
None
..........................

..........................
Is a Supplemental Form 8 attached? (Note
9)                                                              NO



Date of disclosure                                11th September 2008
Contact name                                     Asif S Lalani
Telephone number                                 020 7163 5115
If a connected EFM, name of offeree/offeror with
which connected
If a connected EFM, state nature of connection
(Note 10)

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