Oregon Revised Statutes Probate Law § 113.015

(a) In the county where the decedent had a domicile or where the decedent had a place of abode at the time of death;

(b) In any county where property of the decedent was located at the time of death or is located at the time the proceeding is commenced; or

(c) In the county in which the decedent died.