Okla. Stat. tit. 56, § 203

In the event the Department of Public Welfare, after a thorough study of the needs, determines that the services provided for in Section 1 of this act can be more satisfactorily and economically performed by providing for its own system of hospitalization and medical care, the Department of Public Welfare is hereby authorized to establish and maintain such a system within said Department, under which such services as provided in Section 1 can be offered.