Gas is exempt from the tax under section 57-51-02.2 for a period of two years and thirty days from the time of first production if the gas is:

1.    Collected and used at the well site to power an electrical generator that consumes at least seventy-five percent of the gas from the well; or

2.    Collected at the well site by a system that intakes at least seventy-five percent of the gas and natural gas liquids volume from the well for beneficial consumption by means of compression to liquid for use as fuel, transport to a processing facility, production of petrochemicals or fertilizer, conversion to liquid fuels, separating and collecting over fifty percent of the propane and heavier hydrocarbons, or other value-added processes as approved by the industrial commission.