Okla. Stat. tit. 36, § 36-2922: Subscriber's liability on judgments

A. No action shall lie against any subscriber upon any

obligation claimed against the insurer until a final judgment has

been obtained against the insurer and remains unsatisfied for thirty

(30) days.

B. Any such judgment shall be binding upon each subscriber only

in such proportion as his interests may appear and in amount not

exceeding his contingent liability, if any.