Or. Rev. Stat. § 376.750
(1) A copy of the resolution shall be mailed, postage prepaid, not less than 60 days prior to the hearing to each person to whom any of the following described lands is assessed as shown on the last equalized assessment roll, at the address of the person as shown upon such roll, and to any person, whether owner in fee or having a lien upon, or legal or equitable interest in, any of such lands whose name and address and a designation of the land in which the person is interested is on file in the office of the city clerk or county clerk, as the case may be. Such lands are as follows:
[1961 c.666 §12]