As of March 1, foreign entities in Oregon will be required to file renewals online only. Previously, businesses could mail in their renewal with the blue payment coupon generated by the state. Blue coupons issued before March 1 will be accepted during this transition. See the link for more information.
http://filinginoregon.com/pages/forms/business/Misc/lcokbox_transition.pdf
Oregon – Online Filing for Foreign Renewals