Okla. Stat. tit. 12, § 12-1148.1: Jurisdiction - Forcible entry and detention - Joinder

of actions - Judgments no bar.

The district court shall have jurisdiction to try all actions

for the forcible entry and detention, or detention only, of real

property, and claims for the collection of rent or damages to the

premises, or claims arising under the Oklahoma Residential Landlord

and Tenant Act, may be included in the same action, but other claims

may not be included in the same action. A judgment in an action

brought under this act shall be conclusive as to any issues

adjudicated therein, but it shall not be a bar to any other action

brought by either party.