Okla. Stat. tit. 47, § 47-15-103: Rights of owners of real property

Nothing in this act shall be construed to prevent the owner of

real property used by the public for purposes of vehicular travel by

permission of the owner, and not as a matter of right, from

prohibiting such use, or from requiring other or different or

additional conditions than those specified in this act, or otherwise

regulating such use as may seem best to such owner.