Wells drilled for oil, gas or helium pursuant to the provisions of title 27 are not wells as defined in this chapter. The director, by rule or regulation, may exempt exploration wells from any requirement of this article that the director determines is not necessary for the protection of groundwater. Geothermal wells drilled pursuant to the provisions of title 27 are not wells as defined in this chapter when the director finds that the rules and regulations of the oil and gas conservation commission require the reinjection of all waters associated with the geothermal resource to the producing strata.