Okla. Stat. tit. 36, § 36-4013: Payment of claims

There shall be a provision that when a policy shall become a

claim by the death of the insured settlement shall be made upon

receipt of due proof of death and, at the insurer's option,

surrender of the policy and/or proof of the interest of the

claimant. If an insurer shall specify a particular period prior to

the expiration of which settlement shall be made, such period shall

not exceed two months from the receipt of such proofs.