The natural gas consumption tax relating to the special regulatory tax paid into the treasury under this chapter shall be deposited into a special fund used only by the Commission for the purpose of making appraisals, assessments and collections against natural gas suppliers and public service corporations furnishing heat, light and power by means of natural gas and for the further purposes of the Commission in investigating and inspecting the properties or the services of such natural gas suppliers and public service corporations, and for the supervision and administration of all laws relative to such natural gas suppliers and public service corporations, whenever the same shall be deemed necessary by the Commission.