Every crude oil producer who engages in the business of producing oil from any well or wells located within this city shall pay a tax for each well operated by such crude oil producer for the purpose of producing crude oil, gas or other petroleum substances, computed as follows:
(1) An annual tax of one hundred fifty dollars per wellhead, which amount is referred to in this chapter as the "wellhead tax"; and
(2) A quarterly tax of eleven cents times the number of barrels of oil produced from the wellhead during each calendar quarter of the calendar year, which amount is referred to in this chapter as the "per-barrel tax."
(Ord. 348 § 1 (part), 1983).