NXT Energy Solutions, Inc. engages in the provision of airborne, gravity-based geophysical survey to companies involved in oil and gas exploration and production. It offers the Stress Field Detection survey method used to identify trapped subsurface fluid accumulations by responding to the gravitational perturbations associated with density and stress distribution conditions that are indicative of the simultaneous existence of trap, reservoir and seal. The company was founded on September 27, 1994 and is headquartered in Calgary, Canada.