Okla. Stat. tit. 70, § 3426

There is hereby created in the State Treasury a revolving fund for the Oklahoma State Regents for Higher Education to be designated the "George Nigh Rehabilitation Institute Revolving Fund". The fund shall be a continuing fund not subject to fiscal year limitations and shall consist of all monies received by the Oklahoma State Regents for Higher Education from any gifts, contributions, bequests, individual reimbursements and other sources of revenue, for the care or support of persons who have been admitted and cared for at the Institute and any other monies directed by law to be placed in the fund. Monies accruing to the fund may be expended by the Oklahoma State Regents for Higher Education for operation, maintenance and capital improvement of the facility. Expenditures from the fund shall be made on warrants issued by the State Treasurer against claims filed with the Director of the Office of Management and Enterprise Services for approval and payment.