Okla. Stat. tit. 64, § 64-1039: Checks, warrants or vouchers - Remaining unpaid for three

years.

All checks, vouchers or warrants heretofore or hereafter issued

by the Commissioners of the Land Office in payment of any obligation

of the state which shall for any cause remain unpaid and outstanding

for a period of three (3) years shall be canceled. Where the

identity of the account originally charged cannot now be

ascertained, the amount of such cancellation shall revert to and be

credited to the common school fund of the state. Where the account

originally charged can be identified the cancellation shall have the

effect of restoring to the account the amount theretofore charged.