Okla. Stat. tit. 12, § 187

In addition to the other counties in which an action may be brought against a nonresident of this state, an action where all defendants are nonresidents of the state may be brought in the county where the cause of action arose or in the county where the plaintiff or one of the plaintiffs resides. If one or more of the defendants is a resident of this state, the action shall be brought in any county where venue would be proper as to the resident defendant or one of the resident defendants if there are several.