In any civil action or proceeding to recover for the overpayment of any charge for water, sanitary sewer, garbage, electric or natural gas service from any person, firm or corporation, or to determine the right of any person, firm or corporation to receive any such service, the prevailing party shall be allowed a reasonable attorney fee to be set by the court, to be taxed and collected as costs.
Okla. Stat. tit. 12, § 938