Okla. Stat. tit. 69, § 69-4013: Department - Limitation of jurisdiction

The State Department of Transportation shall have no

responsibility or authority in any transportation matters under the

jurisdiction of the Oklahoma Corporation Commission. The Department

shall not have jurisdiction of any matter now within or under the

jurisdiction of any town, city, county or any regional authority,

transportation authority, port authority or airport authority

heretofore created by any town, city or county or combination

thereof.