Where the individual insured or the annuitant and the beneficiary designated in a life insurance policy or policy insuring against accidental death or in an annuity contract have died and there is not sufficient evidence that they have died otherwise than simultaneously, the proceeds of the policy or contract shall be distributed as if the insured or annuitant had survived the beneficiary, unless otherwise specifically provided in the policy or contract.
Okla. Stat. tit. 36, § 3628