UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 NORTHERN ORION RESOURCES, INC. (Name of Issuer) COMMON STOCK (Title of Class of Securities) 665575106 (CUSIP Number) December 31, 2005 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ X ] Rule 13d-1(c) [ ] Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 2 CUSIP No. 665575106 1. NAMES OF REPORTING PERSONS: Frank E. Holmes I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY): 00-0000000 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Canada NUMBER OF 5. SOLE VOTING POWER: 0 SHARES BENEFICIALLY 6. SHARED VOTING POWER: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants OWNED BY EACH 7. SOLE DISPOSITIVE POWER: 0 REPORTING PERSON WITH 8. SHARED DISPOSITIVE POWER: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 11.4% 12. TYPE OF REPORTING PERSON HC Page 2 of 2 CUSIP No. 665575106 1. NAMES OF REPORTING PERSONS: U.S. Global Investors, Inc. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY): 00-0000000 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Commonwealth of Massachusetts NUMBER OF 5. SOLE VOTING POWER: 0 SHARES BENEFICIALLY 6. SHARED VOTING POWER: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants OWNED BY EACH 7. SOLE DISPOSITIVE POWER: 0 REPORTING PERSON WITH 8. SHARED DISPOSITIVE POWER: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 12,572,400 shares 4,564,000 CW08 warrants 356,500 CW10 warrants 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 11.4% 12. TYPE OF REPORTING PERSON IA Page 2 of 2 CUSIP No. 665575106 1. NAMES OF REPORTING PERSONS: U.S. Global Investors World Precious Minerals Fund I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY): 00-0000000 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION: Commonwealth of Massachusetts NUMBER OF 5. SOLE VOTING POWER: 7,422,000 shares SHARES 2,887,550 CW08 warrants BENEFICIALLY 176,500 CW10 warrants OWNED BY 6. SHARED VOTING POWER: 0 EACH REPORTING 7. SOLE DISPOSITIVE POWER: 7,422,000 shares 2,887,550 CW08 warrants 176,500 CW10 warrants PERSON WITH 8. SHARED DISPOSITIVE POWER: 0 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,422,000 shares 2,887,550 CW08 warrants 176,500 CW10 warrants 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.9% 12. TYPE OF REPORTING PERSON IV Page 2 of 2 ITEM 1. (a) NAME OF ISSUER: Northern Orion Resources, Inc. (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 1075 West Georgia Street, Suite 250 Vancouver, B.C. Canada V6E3C9 ITEM 2. (a) NAME OF PERSON FILING: Frank E. Holmes (b) ADDRESS OF PRINCIPAL 7900 Callaghan Road BUSINESS OFFICE San Antonio, Texas 78229 (c) CITIZENSHIP: Canada (a) NAME OF PERSON FILING: U.S. Global Investors, Inc. ("USGI") (b) ADDRESS OF PRINCIPAL 7900 Callaghan Road BUSINESS OFFICE: San Antonio, Texas 78229 (c) CITIZENSHIP: Texas (a) NAME OF PERSON FILING: U.S. Global Investors World Precious Minerals Fund("WPMF") (b) ADDRESS OF PRINCIPAL: 7900 Callaghan Road BUSINESS OFFICE San Antonio, Texas 78229 (c) CITIZENSHIP: Commonwealth Massachusetts (d) TITLE OF CLASS OF SECURITIES: Common Stock (no par value)("Shares") (e) CUSIP NUMBER: 665575106 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO 17 CFR ss.240.13d-1(b) OR ss.240.13d-2(b) or (c), CHECK WHETHER THE PERSON FILING IS A: (a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o). (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c). (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c). (d) [X] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8). (e) [X] An investment adviser in accordance with 17 CFR 240.13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with 17 CFR ss.240.13d-1(b)(1)(ii)(F); (g) [X] A parent holding company or control person in accordance with 17 CFR ss.240.13d-(1)(b)(1)(ii)(G); (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with 17 CFR ss.240.13d-1(b)(1)(ii)(J). ITEM 4. OWNERSHIP. The responses to Items 5-11 of the respective cover pages of Mr. Holmes, USGI, and WPMF are hereby incorporated by reference in response to Items 4(a)-(c). WPMF, a registered investment company under the Investment Company Act of 1940, is the direct holder of 7,422,000 Shares, 2,887,550 CW08 warrants, and 176,500 CW10 warrants. USGI, a registered investment adviser under the Investment Advisors Act of 1940, is the manager of WPMF. USGI is also the manager of other registered investment companies (the"Funds") that hold in the aggregate 12,572,400 Shares, 4,564,000 CW08 warrants, and 356,500 CW10 warrants, none of which individually owns greater than five percent of the Shares. Mr. Holmes is the chief executive officer and controlling shareholder of USGI. Because of their direct and indirect control of the investment and voting decisions of WPMF and the other Funds, USGI and Mr. Holmes may be deemed the beneficial owners of the Shares, but disclaim such beneficial ownership except to the extent of their pecuniary interest in the Shares. ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ]. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON. See Item 4 above. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP Not applicable ITEM 9. NOTICE OF DISSOLUTION OF GROUP Not applicable ITEM 10. CERTIFICATION By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated as of February 13, 2006. FRANK E. HOLMES /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney U.S. GLOBAL INVESTORS INC. By: Frank E. Holmes Chief Executive Officer /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney U.S. GLOBAL INVESTORS WORLD PRECIOUS MINERALS FUND By: Frank E. Holmes President/Chief Executive Officer /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney Exhibit A Joint Filing Agreement We, the undersigned, hereby express our agreement that the attached Schedule 13G, and any amendments thereto, is filed jointly on behalf of each of us pursuant to Rule 13d-1(k) of the Exchange Act. Dated as of: February 13, 2006. FRANK E. HOLMES /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney U.S. GLOBAL INVESTORS INC. By: Frank E. Holmes Chief Executive Officer /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney U.S. GLOBAL INVESTORS WORLD PRECIOUS MINERALS FUND By: Frank E. Holmes President/Chief Executive Officer /s/Susan B. McGee, Power of Attorney ------------------ (Signature) Susan B. McGee, Power of Attorney