Okla. Stat. tit. 74, § 94

A. Except as otherwise provided by law, the Office of Management and Enterprise Services shall have full and complete authority to designate quarters for every department of state government, and to determine what space shall be allotted. B. The Office may lease adequate space in state buildings and facilities to private vendors for the location of automatic teller machines as determined necessary or appropriate by the Director of the Office. The Office is hereby authorized to fix the monthly amount to be paid by such vendors, which shall be deposited in the General Revenue Fund.