UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

Amendment No. 1

(Mark One)

x                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended April 4, 2010

OR

o                   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             

Commission File No. 0-50848

Voyager Oil & Gas, Inc.

(formerly known as ante4, Inc.)

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (406) 245-4902

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes o No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   Yes o No x

As of May 19, 2010, there were 45,344,431 shares of Common Stock, $0.001 par value per share outstanding

Explanatory Note

This Amendment No. 1 on Form 10-Q/A (“Form 10-Q/A”) is an amendment to the Registrant’s Quarterly Report on Form 10-Q for the period ended April 4, 2010 (the “Report”). This Form 10-Q/A is being filed solely to add Exhibit 10.1 as an additional exhibit to the Report that was originally filed with the Securities and Exchange Commission on May 19, 2010. This Form 10-Q/A continues to speak as of the date of the Report, as we have not updated the disclosures contained in the Report to reflect any events that occurred at a later date, other than the updating of the exhibits to include Exhibit 10.1 and updated Section 302 Certifications of our Chief Executive Officer and Interim Chief Financial Officer.

PART II — OTHER INFORMATION

ITEM 6. EXHIBITS

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SIGNATURES

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

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EXHIBIT INDEX

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