Rule 25-6.0131 requires Commission-regulated electric companies, including investor-owned utilities, municipal utilities, and rural cooperatives, to remit regulatory assessment fees based upon their gross operating revenues. The rule amendment would include directives for the filing of either a 15-day or a 30-day extension of the due date for the payment of regulatory assessment fees or regulatory assessment fee return form due date, and would provide that requests for extension will not be granted if the company has any unpaid regulatory assessment fees, penalties, or interest due from a prior period.