Okla. Stat. tit. 18, § 2065

DERIVATIVE SUITS. Members of a public benefit limited liability company or assignees of membership interests in a public benefit limited liability company owning individually or collectively, as of the date of instituting such derivative suit, at least two percent (2%) of the then-current membership interests of the limited liability company may maintain a derivative lawsuit to enforce the requirements set forth in subsection A of Section 25 of this act.