ORS 537.220: Assignment of application, permit or license.

(1) Any application, permit or license to appropriate water may be assigned, subject to the conditions of the application or permit, but no such assignment shall be binding, except upon the parties to the assignment, unless filed for record in the Water Resources Department.

      (2) An assignment of an application, permit or license to appropriate water filed for record with the Water Resources Department shall identify the current record owners of all property described in the application, permit or license. The assignor shall furnish proof acceptable to the department that notice of the assignment has been given or attempted for each identified property owner not a party to the assignment.