Oregon Revised Statutes Trade Regulations and Practices § 646.805

(1) A final judgment or decree heretofore or hereafter rendered in any civil or criminal proceeding brought by or on behalf of the United States under the antitrust laws of the United States to the effect that a defendant has violated such laws, other than a judgment or decree entered in an action under section 15a of Title 15 of the United States Code or a consent judgment or decree entered before any testimony has been taken, shall estop defendant from denial of any matters established in such proceeding, in any action or proceeding brought against such defendant by the state or any person under ORS 646.760, 646.770 or 646.780, to the extent such judgment or decree would be an estoppel between the parties thereto with respect to such matters.

(2) A final judgment or decree to the effect that a person has violated ORS 136.617, 646.705 to 646.805 and 646.990 in an action brought by the state under ORS 646.760, 646.770 or 646.780, other than a consent judgment or decree entered before any testimony has been taken which specifically provides therein that this subsection shall not be applicable, shall estop defendant from denial of any matters established in such action, in any other action against the defendant under ORS 646.770 or 646.780, to the extent such judgment or decree would be an estoppel between the parties thereto with respect to such matters.