Okla. Stat. tit. 12, § 2023.2

ACTIONS RELATING TO UNINCORPORATED ASSOCIATIONS An action brought by or against the members of an unincorporated association as a class by naming certain members as representative parties may be maintained only if it appears that the representative parties will fairly and adequately protect the interests of the association and its members. In the conduct of the action the court may make appropriate orders corresponding with those described in subsection D of Section 23 of this act, and the procedure for dismissal or compromise of the action shall correspond with that provided in subsection E of Section 23 of this act.