Okla. Stat. tit. 19, § 19-751: Governing bodies of cities authorized to contract with

county commissioners.

The governing bodies of the cities of this state are hereby

empowered and authorized to enter into a contract with the county

commissioners of the county in which such city is located for the

purpose of erecting, maintaining or operating a building to be used

for a city hall and courthouse purpose or for a county and city jail

or either or both of them, upon such terms or conditions as may be

agreed upon between the two contracting bodies.