Okla. Admin. Code § 165:50-1-1
The General Rules Relating to Fuel, Purchased Gas, and Purchased Power Adjustment Clauses of this Chapter were promulgated in furtherance of 17 O.S. 1971, Section 152, and more specifically, 17 O.S. 1977 Supp., Section 250-64, which provided for the approval, regulation, and effectiveness of "fuel adjustment clauses," which are defined as including fuel, purchased power, and purchased gas adjustment clauses and requires certain filings, authorizes certain hearings, requires certain disclosures, and provides for certain investigations. Pursuant to such statutory authorization and requirements, the Oklahoma Corporation Commission adopted the rules of this Chapter through Cause No. 26134, Order No. 135207, effective November 1, 1977.
Okla. Admin. Code § 165:50-1-1