ORS § 87.715
Except for tax liens, and except as provided in ORS 87.146(1)(c) and 87.710(4), the class of lien created by ORS 87.705 is prior and superior to all other classes of lien or any classes of security interest in the inventory, proceeds or accounts receivable of a purchaser, without regard to whether those other liens or security interests attached to the inventory, proceeds or accounts receivable before or after a lien created by ORS 87.705 attaches. Except as provided in ORS 87.710(4), all liens of the class created under ORS 87.705, regardless of the date of attachment or the date of notice of lien, are of equal priority and payable pro rata in proportion to the size of each lien. This section does not prohibit an unequal pro rata recovery between agricultural producers supplying meat animals and other agricultural producers if the inequality results from a lien on accounts receivable created under ORS 87.705.
ORS 87.715