Every person engaged in the business of selling or distributing, either wholesale
or retail, propane gas, cryogenics, butane gas, or other flammable vaporous gas, distillate,
kerosene, gasoline or refined petroleum products from a filling station, tank truck
or trailer, or stationary tank shall first procure a license and pay an annual license
fee in the amount set forth in Section 7.14.010 of this title, under the appropriate heading.