Okla. Stat. tit. 63, § 5020

There is hereby created in the State Treasury a fund for the Oklahoma Health Care Authority to be designated the "Oklahoma Health Care Authority Medicaid Program Fund". The fund shall be a continuing fund, not subject to fiscal year limitations. All monies accruing to the credit of said fund are hereby appropriated and may be budgeted and expended by the Oklahoma Health Care Authority at the discretion of the Oklahoma Health Care Authority Board. Expenditures from said fund shall be made upon warrants issued by the State Treasurer against claims filed as prescribed by law with the Director of the Office of Management and Enterprise Services for approval and payment. The Administrator of the Oklahoma Health Care Authority may request the Director of the Office of Management and Enterprise Services to transfer monies between the Oklahoma Health Care Authority Medicaid Program Fund and any other fund of the Authority, as needed for the expenditure of funds.