Okla. Stat. tit. 70 § 9013
After the formation of a higher education funding district authorized by this act, the question of annexation or deannexation of territory comprising the district may be submitted either by resolution of the board of regents for the institution within The Oklahoma State System of Higher Education for whose benefit the district was created or by a petition signed by ten percent (10%) or more of the eligible voters of the district. The procedures for conducting the vote and implementing any changes in the boundary of the higher education funding district shall be the same as those prescribed by Section 9B of Article X of the Oklahoma Constitution or enabling legislation enacted or administrative rules adopted pursuant thereto.
Okla. Stat. tit. 70, § 9013