Okla. Stat. tit. 11 § 45-102
The municipal planning commission shall consist of not less than five (5) citizens, all of whom shall reside within the municipality. The members shall be nominated by the mayor and confirmed by the governing body of the municipality. Each member shall serve for a term of three (3) years. When the commission is first appointed, the terms of one-third (1/3) of the members shall be for three (3) years, one-third (1/3) for two (2) years, and one-third (1/3) for one (1) year. Appointments to fill vacancies shall be for the unexpired term only. The members of the commission shall serve without pay, except that in cities having a population of more than two hundred thousand (200,000), the commissioners may receive a per diem as set by the municipal governing body, not to exceed Twenty-five Dollars ($25.00) for each meeting attended or One Hundred Dollars ($100.00) per month.
Okla. Stat. tit. 11, § 45-102