Okla. Stat. tit. 11 § 33-111
Whenever a petition is signed by at least five percent (5%) of the registered voters of a governmental unit requesting its governing body to provide, establish, maintain, conduct, either singly or jointly with one or more of the other governmental units specified herein, a recreation system and an appropriate amount of funds necessary for the establishment thereof, it shall be the duty of the governing body of the governmental unit to cause the question of establishment, maintenance and conduct of the recreational system or facilities to be submitted to the registered voters of the governmental unit, and the proposition of the issuance of bonds therefor to be voted on in a special or general election. Upon the adoption of the proposition, the governing body of the governmental unit shall by appropriate resolution or ordinance provide for the establishment, maintenance and conduct of such recreation center or other recreational purposes or facilities.
Okla. Stat. tit. 11, § 33-111