Okla. Stat. tit. 36, § 2609

A. Corporations organized under this article shall be mutual corporations and every person who holds a policy or contract with the corporation shall be a member of the corporation and shall be entitled to one or more votes based upon the number of policies or contracts held, and such members may vote in person or by proxy. B. Mutual corporations organized in accordance with the provisions of this article shall be entitled to charge and collect initial membership fees or policy fees, or both such fees, in addition to premiums.