Okla. Const. Schedule, § 2
§ 2. Laws of the Territory of Oklahoma – extended and to remain in force.
All laws in force in the Territory of Oklahoma at the time of the admission of the State into the Union, which are not repugnant to this Constitution, and which are not locally inapplicable, shall be extended to and remain in force in the State of Oklahoma until they expire by their own limitation or are altered or repealed by law.