Oregon Revised Statutes Trade Regulations and Practices § 650.220

(1) Notwithstanding the terms of any franchise, a franchisor shall not prohibit or unreasonably withhold its consent to any sale, assignment or other transfer of the franchise by a franchisee to a qualified third party.

(2) If the franchisor consents to the proposed sale, assignment or other transfer and the proposed third party has not previously been a party to a franchise with the franchisor, the franchisor at its option may require the third party to accept in lieu of the assigned franchise a trial franchise as defined in The Petroleum Marketing Practices Act, (15 U.S.C. 2803), on the terms and conditions then generally being extended by the franchisor to similarly situated franchisees. Entry into the trial franchise shall terminate the franchise proposed to be sold, assigned or transferred.