Okla. Stat. tit. 17 § 252
Whenever the Commission approves a fuel adjustment clause pursuant to this act, the clause shall apply to all similar public utilities affected by such increased costs. In addition, the Commission shall continually monitor and oversee the application of the fuel adjustment clauses. The Commission shall hold a public hearing thereon whenever it deems it necessary, but no less frequently than once every twelve (12) months. If the Commission finds that the charges or credits are not based upon the actual prices paid for fuel, purchased gas or purchased power, or are not properly computed in accordance with the applicable adjustment clause, it shall recompute the charges or credits and shall direct the public utility to take such action as may be required to insure that the charges or credits properly reflect the actual prices paid for fuel, purchased gas or purchased power and are properly computed in accordance with the applicable adjustment clause for the applicable period. The fuel adjustment clause may be amended upon a finding of changed circumstances by the Commission but shall not be wholly discontinued or suspended except by order of the Commission after notice and hearings for the utilities affected have been rendered.
Okla. Stat. tit. 17, § 252