Okla. Stat. tit. 70, § 70-17-105.1: Unpaid accumulated contributions - Payment to

beneficiary or estate.

In the event the total retirement payments made to a retired

member and the retired member’s joint annuitant, if any, are less

than the member’s accumulated contributions with interest as

credited at the time of retirement under Section 17-105 of this

title, the difference shall be paid to the member’s designated

beneficiary, or if no designated beneficiary survives, then to the

member’s estate. This provision shall apply to retired members

dying on or after July 1, 1979. After paying unpaid accumulated

contributions to any designated beneficiary or the member’s estate

pursuant to this section, the Teachers’ Retirement System of

Oklahoma is discharged and released from any and all liability,

obligation, and costs. The System is not required to inquire into

the truth of any matter specified in this section or into the

payment of any estate tax liability.