UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 12, 2013

GREENHUNTER RESOURCES, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (972) 410-1044

Not applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On December 12, 2013, the Company issued an unsecured promissory note in the amount of $1,500,000 principal together with Warrants (the “Warrants”) to purchase up to 107,142 shares of the Company’s common stock, par value $0.001 per share (“Common Stock”) to Gary C. Evans, Chairman of the Board of the Company. Each Warrant entitles the holder to purchase one share of Common Stock at a price of $0.01 per share. These Warrants have an expiration date five years from the date of issuance.

Mr. Evans loaned the Company the proceeds as part of his $2 million letter of credit support he has issued to the Company. The promissory note will be an unsecured obligation of the Company. The Company will pay principal and all accrued interest on the promissory note on or before March 1, 2014, unless extended by the Company for thirty days. In addition, the Company may prepay the promissory note in whole or in part at any time.

The Company completed the transaction in reliance upon the exemption from securities registration afforded by Section 4(2) of the Securities Act of 1933, as amended (the “1933 Act”), and Rule 506 of Regulation D as promulgated by the United States Securities and Exchange Commission under the 1933 Act.

(d) Exhibits.

SIGNATURE

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 hereunto duly authorized.