The Master List is posted by the 9th of each month in the Open Data Portal:
The Farm Products Master List includes only farm product liens that have not lapsed - ORS 80.118. To access liens up to one year past the lapse date, use our UCC Search.
Find Registered Buyers of Farm Products, Commission Merchants or Selling Agents: Farm Products - List of Registered Buyers (PDF).
EFS-1 Farm Products Financing Statement Standard
EFS-3 Statement of Termination, Continuation, Assignment, Amendment