Okla. Stat. tit. 36, § 36-621: Service of legal process on foreign or alien insurers

A. Each authorized foreign or alien insurer shall appoint the

Insurance Commissioner as its agent to receive service of legal

process, other than a subpoena, issued against it in this state upon

any cause of action arising from its transaction of business in this

state. The appointment shall be irrevocable, shall bind any

successor and shall remain in effect as long as there is in force in

this state any contract made by the insurer or obligations arising

therefrom.

B. Service of such process against a foreign or alien insurer

shall be made only by service of process upon the Insurance

Commissioner. Service of process against a domestic insurer may be

made upon the insurer in the manner provided by laws applying to

business entities generally, or upon the insurer's attorney-in-fact

if a reciprocal insurer or a Lloyds association.

C. Each such insurer at time of application for a certificate

of authority shall file with the Insurance Commissioner designation

of the name and address of the person to whom process against it

served upon the Insurance Commissioner is to be forwarded. The

insurer may change such designation by a new filing.