Okla. Stat. tit. 36, § 36-4112: Payment of proceeds - Time

An insurer shall pay the proceeds of any benefits under group

life insurance policy not more than thirty (30) days after the

insurer has received proof of death of the insured. If the proceeds

are not paid within this period, the insurer shall pay interest on

the proceeds, at a rate which is not less than the current rate of

interest on death proceeds on deposit with the insurer, from the

date of death of the insured to the date when the proceeds are paid.

Payment shall be deemed to have been made on the date an electronic

payment is made or a check, draft or other valid instrument which is

equivalent to payment was placed in the U.S. mails in a properly

addressed, postpaid envelope; or, if not so posted, on the date of

delivery of such instrument to the beneficiary.