Every person, firm, company, or corporation, and the successors
and assigns owning, operating, controlling, leasing, and/or managing
any such person, firm, company, or corporation, engaged in the business
of furnishing public, non-municipal utility services to the citizens
and entities of the City, and operating within the City, shall pay,
as an annual franchise/occupation tax, seven percent (7%) of the gross
receipts derived and collected from the sale of such public utility
services within the present or future limits of the City, during the
period of such occupation. The seven percent (7%) annual franchise/occupation
tax shall be paid in addition to any other taxes imposed upon such
public utilities.