Oregon Revised Statutes Trade Regulations and Practices § 650.235

(a) If specific hours of business or operation are required under the franchisor's prime lease or license from any governmental entity, airport, parking, marine or port authority, shopping center or any private investor not affiliated with or controlled by the franchisor;

(b) If the service station is located within one-fourth mile of access to any limited access highway of the federal highway system;

(c) To hours of operation exceeding 16 hours per day that have been agreed upon by the franchisor and the franchisee; or

(d) If the franchisor uniformly requires a 24-hour operation by all of its franchisees.