Okla. Stat. tit. 19 § 401
In any county where there is no courthouse or jail erected by the county, or where those erected have not sufficient capacity, it shall be the duty of the board of county commissioners to provide for court room, jail, and offices for the following named officers: sheriff, treasurer, register of deeds, district clerk, county clerk, district attorney, superintendent of public schools and judge of the district court, to be furnished by the county in a suitable building or buildings, for the lowest rent to be obtained at the county seat, or to secure and occupy suitable rooms at a free rent within the limits of the county seat or any of the additions thereto, until such county builds a courthouse. They shall also provide the courts appointed to be held therein, with attendants, fuel, lights and stationery, suitable and sufficient for the transaction of their business. If the commissioners neglect, the court may order the sheriff to make such necessary provision, and the expenses incurred by him in carrying the order into effect, when certified by the court, shall be a county charge.
Okla. Stat. tit. 19, § 401