Okla. Stat. tit. 54, § 54-500-1003A: Proper plaintiff

PROPER PLAINTIFF.

A derivative action may be maintained only by a person that is a

partner at the time the action is commenced and:

(1) that was a partner when the conduct giving rise to the

action occurred; or

(2) whose status as a partner devolved upon the person by

operation of law or pursuant to the terms of the partnership

agreement from a person that was a partner at the time of the

conduct.