Okla. Stat. tit. 11 § 10-112
The council shall appoint a city manager, a part-time city manager, or a part-time city planner, pursuant to this act, by a vote of a majority of all its members subject to the terms of employment established by the council. It shall choose the city manager, part-time city manager, or part-time city planner solely on the basis of executive and administrative qualifications with special reference to the actual experience in, or the knowledge of, accepted practice in respect to the duties of the office. At the time of appointment, the city manager need not be a resident of the city or state; but during the tenure of holding office the city manager shall reside within the boundaries of the city, the school district or districts that overlap the city boundaries, or within ten (10) miles of the city or school district. City managers, part-time city managers, or part-time city planners may appoint themselves, or the council or other authority may appoint or elect the city manager, part-time city manager, or part-time city planner to other offices and positions in the city government, subject to regulations prescribed by ordinance; but the city manager, part-time city manager, or part-time city planner may not receive compensation for service in such other offices or positions. Neither the mayor nor any members of the city council may be appointed city manager, part-time city manager, or part-time city planner during the term for which they shall have been elected nor within two (2) years after they cease to hold such office.
Okla. Stat. tit. 11, § 10-112