6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of December, 2016

Commission File Number: 000-24027

NXT Energy Solutions Inc.

(Translation of registrant's name into English)

Suite 302

3320 - 17th Avenue SW

Calgary, Alberta, Canada, T3E 0B4

(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    No

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes _____ No     X   

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes _____ No     X   

Indicate by check mark whether by furnishing the information contained in this Form, the registrant 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):

The Issuer is filing material documents not previously filed.

Exhibit List:

99.1 NXT ENERGY SOLUTIONS INC. ANNOUNCES RESIGNATION OF DIRECTOR AND PURCHASE OF COMPANY STOCK BY TWO DIRECTORS

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.

Date: December 14, 2016

NXT Energy Solutions Inc.

By: /s/ Bev Stewart                                                                     

Name: Bev Stewart

Title: Vice-President Finance and Chief Financial Officer

EX-99.1

Exhibit 99.1

NXT ENERGY SOLUTIONS INC. ANNOUNCES RESIGNATION OF DIRECTOR AND PURCHASE OF COMPANY STOCK BY TWO DIRECTORS

CALGARY, ALBERTA, December 14th, 2016 - NXT Energy Solutions Inc. ("NXT Energy" or the "Company") (TSX: SFD; OTCQB: NSFDF) advises that Mr. Krishna Vathyam has resigned from the Board of Directors, effective November 28^th, 2016.  NXT Energy would like to thank Mr. Vathyam for his contributions to the Board.

In connection with his resignation from the Board, Mr. Vathyam exercised options to purchase 157,500 common shares of the Company.  98,700 of these shares have since been sold through the facilities of the TSX at a price of $1.50 per share.  Of the shares sold, 68,700 were purchased by two other members of the NXT Energy Board of Directors: Mr. John Tilson acquired 28,700 shares and Mr. Bruce Wilcox acquired 40,000 shares.

For further information about NXT, please contact NXT's Head office at nxt_ info@nxtenergy.com

NXT Energy is a Calgary based company whose proprietary Stress Field Detection ("SFD^®") survey system utilizes quantum-scale sensors to detect gravity field perturbations in an airborne survey method which can be used both onshore and offshore to remotely identify areas with exploration potential for traps and reservoirs.  The SFD^® survey system enables our clients to focus their hydrocarbon exploration decisions concerning land commitments, data acquisition expenditures and prospect prioritization on areas with the greatest potential.  SFD^® is environmentally friendly and unaffected by ground security issues or difficult terrain, and is the registered trademark of NXT Energy Solutions Inc.  NXT Energy provides its clients with an effective and reliable method to reduce time, costs, and risks related to exploration.

For further information, please contact:

Bev Stewart	Kin Communications
V-P Finance & CFO	Investor Relations
NXT Energy Solutions Inc.	1-866-684-6730 / 604-684-6730
403-206-0807	sfd@kincommunications.com
info@nxtenergy.com
www.nxtenergy.com

Neither the TSX nor its Regulation Services Provider (as that term is defined in the policies of the TSX) nor the OTC QB Markets accept responsibility for the adequacy or accuracy of this release.