Oregon Revised Statutes Trade Regulations and Practices § 646.140

(1) Any person injured by any violation, or who will suffer injury from any threatened violation, of ORS 646.010 to 646.180 may maintain an action in any court of general equitable jurisdiction of this state, to prevent, restrain or enjoin the violation or threatened violation. If in such action, a violation or threatened violation of ORS 646.010 to 646.180 is established, the court shall enjoin and restrain or otherwise prohibit such violation or threatened violation, and the plaintiff in the action is entitled to recover three-fold the damages sustained by the plaintiff. Except as provided in subsection (2) of this section, the court may award reasonable attorney fees to the prevailing party in an action under this section.

(2) The court may not award attorney fees to a prevailing defendant under the provisions of subsection (1) of this section if the action under this section is maintained as a class action pursuant to ORCP 32.

(3) Actions brought under this section shall be commenced within four years from the date of the injury.