Upon every person engaging or continuing within the City in the business of producing for sale, profit, or commercial use any natural resource products, the amount of such tax to be equal to the value of the articles produced as shown by the gross proceeds derived from sales thereof by the producer, except as hereinafter provided, multiplied by the respective rates as follows: Coal, three-fourths of one percent; limestone or sandstone, quarried or mined, 2.20 percent; oil, 1.34 percent; natural gas, in excess of the value of five thousand dollars, 5.95 percent; blast furnace slag, 2.95 percent; sand, gravel or other mineral products, not quarried or mined, 2.95 percent; timber, .75 of one percent; other natural resource products, 1.95 percent. The measure of this tax is the value of the entire productions in the City regardless of the place of sale or the fact that delivery may be made to a point outside of the City.
(1978 Code Sec. 9-11.)