Okla. Stat. tit. 52, § 111

No collateral attack shall be allowed upon orders, rules and regulations of the Commission made hereunder, but the sole method of reviewing such orders and inquiring into and determining their validity, justness, reasonableness or correctness shall be by appeal from such orders, rules or regulations to the Supreme Court. On appeal every such order, rule or regulation shall be regarded as prima facie, valid, reasonable and just. No court of this state except the Supreme Court, and it only on appeal, as herein provided, shall have jurisdiction to review, reverse, annul, modify or correct any order, rule, or regulation of the Commission within the general scope of its authority herein or to enjoin, restrain or suspend execution or operation thereof, provided that writs of mandamus and prohibition shall lie from the Supreme Court to the Commission in all cases where such writs, respectively, would under like circumstances lie to any inferior court or officer.