SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                             ---------------------

                                   FORM 6-K

                             ---------------------


                       REPORT OF FOREIGN PRIVATE ISSUER
                     PURSUANT TO RULE 13a-16 OR 15d-16 OF
                      THE SECURITIES EXCHANGE ACT OF 1934


                             For December 6, 2005



                                 CNOOC Limited

                (Translation of registrant's name into English)

          -----------------------------------------------------------


                                  65th Floor
                              Bank of China Tower
                                One Garden Road
                              Central, Hong Kong
                   (Address of principal executive offices)


          -----------------------------------------------------------






            (Indicate by check mark whether the registrant files or
                will file annual reports under cover Form 20-F
                                 or Form 40-F)



                     Form 20-F   X        Form 40-F
                              ----------           ----------
                     


(Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934.)


                     Yes                  No          X
                              ----------           ----------


(If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b): N/A.)





Company Announcement
--------------------


                                [LOGO OMITTED]
                                CNOOC Limited

                (Translation of registrant's name into English)

               (incorporated in Hong Kong with limited liability
                        under the Companies Ordinance)
                               (Stock Code: 883)

                    NOTICE OF EXTRAORDINARY GENERAL MEETING

NOTICE IS HEREBY GIVEN that an Extraordinary General Meeting of the
shareholders of CNOOC Limited (the "Company") will be held at Island
Shangri-la Hong Kong, Two Pacific Place, Supreme Court Road, Hong Kong on 31
December 2005 at 10 am for the purpose of:

                             ORDINARY RESOLUTIONS

(A)  considering and, if thought fit, passing, with or without modification,
     the following resolutions as Ordinary Resolutions:

1.   "THAT Mr. Fu Chengyu, an executive Director retiring pursuant to Code
     Provision A.4.2 of the Code on Corporate Governance Practices in Appendix
     14 of the Rules Governing the Listing of Securities on The Stock Exchange
     of Hong Kong Limited and being eligible for re-election, be re-elected."

2.   "THAT Mr. Wu Guangqi, an executive Director retiring pursuant to Code
     Provision A.4.2 of the Code on Corporate Governance Practices in Appendix
     14 of the Rules Governing the Listing of Securities on The Stock Exchange
     of Hong Kong Limited and being eligible for re-election, be re-elected."

3.   "THAT Mr. Tse Hau Yin, Aloysius, an independent non-executive Director
     retiring pursuant to Code Provision A.4.2 of the Code on Corporate
     Governance Practices in Appendix 14 of the Rules Governing the Listing of
     Securities on The Stock Exchange of Hong Kong Limited and being eligible
     for re-election, be re-elected."

4.   "THAT, conditional upon the amendment of Article 89(a) of the Company's
     Articles of Association pursuant to Special Resolution No.1 below, the
     aggregate remuneration of the directors of the Company for the current
     financial year of the Company shall be determined by the Board, subject
     to a limit of HK$20,000,000."

                              SPECIAL RESOLUTION

(B)  considering and, if thought fit, passing, with or without modification,
     the following resolution as Special Resolution:

1.   "THAT the articles of association of the Company be and are hereby
     amended by substituting the existing Article 89(a) with the following new
     Article 89(a):

     "89(a) Without prejudice to the provisions of Article 90, the Directors
            shall be entitled to receive by way of remuneration for their
            services such sum as shall from time to time be determined by the
            Company in general meeting, such sum (unless otherwise directed by
            the resolution by which it is voted) is to be divided amongst the
            Directors in such





           proportions and in such manner as the Board may determine, or
           failing agreement, equally, except that in such event any Director
           holding office for less than the whole of the relevant period in
           respect of which the remuneration is paid shall only rank in such
           division in proportion to the time during such period for which he
           has held office. The foregoing provisions shall not apply to a
           Director who holds any salaried employment or office in the Company
           except in the case of sums paid in respect of directors' fees."

                                                       By Order of the Board
                                                            CNOOC Limited
                                                               Cao Yunshi
                                                         Company Secretary

Hong Kong, 3 December 2005

Registered Office:
65th Floor, Bank of China Tower
1 Garden Road
Central
Hong Kong


Notes:

1.   The register of members of the Company will be closed from 28 December
     2005 to 31 December 2005 (both dates inclusive) during which no transfer
     of shares will be registered. In order to qualify for voting at the
     Extraordinary General Meeting, members are reminded to ensure that all
     instruments of transfer of shares accompanied by the relevant share
     certificate(s), must be lodged with the Company's registrar, Hong Kong
     Registrars Limited at Shops 1712-1716, 17/F, Hopewell Centre, 183
     Queen's Road East, Wanchai, Hong Kong for registration not later than
     4:00 p.m. on 23 December 2005.

2.   A member entitled to attend and vote at the Extraordinary General Meeting
     convened by this notice is entitled to appoint one or more proxies to
     attend and vote in his stead. A proxy need not be a member of the
     Company.

3.   To be effective, the instrument appointing a proxy together with the
     power of attorney or other authority, if any, under which it is signed or
     a notarially certified copy of that power or authority, must be completed
     and returned to the Company's registered office at 65th Floor, Bank of
     China Tower, 1 Garden Road, Hong Kong, not less than 48 hours before the
     time for holding the Extraordinary General Meeting or any adjournment
     thereof.

4.   Completion and return of the form of proxy will not preclude you from
     attending and voting in person at the Extraordinary General Meeting or
     any adjournment thereof and, in such event, the relevant form of proxy
     shall be deemed to be revoked.

5.   Where there are joint registered holders of any share of the Company, any
     one of such persons may vote at the Extraordinary General Meeting, either
     personally or by proxy, in respect of such Share as if he were solely
     entitled thereto; but if more than one of such joint registered holders
     be present at the Extraordinary General Meeting personally or by proxy,
     then the registered holder so present whose name stands first on the
     register of members of the Company in respect of such Share will alone be
     entitled to vote in respect thereof.

As at the date of this announcement, the Board comprises of:

Executive Directors                        Independent non-executive Directors
Fu Chengyu (Chairman)                      Sung Hong Chiu
Luo Han                                    Kenneth S. Courtis
Zhou Shouwei                               Evert Henkes
Cao Xinghe                                 Tse Hau Yin, Aloysius
Wu Zhenfang                                Lawrence J. Lau
Wu Guangqi
Yang Hua






                                  SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the registrant has duly caused this report on Form 6-K to be signed
on its behalf by the undersigned, thereunto duly authorized.

                                          CNOOC Limited


                                          By:  /s/ Cao Yunshi
                                               -----------------------------
                                               Name: Cao Yunshi
                                               Title:  Company Secretary

Dated: December 6, 2005