Oregon Revised Statutes Public Financial Administration § 293.500

It shall not be necessary to institute probate proceedings to establish the right of any of the surviving parties named in ORS 293.490 to collect the amounts due the decedent under ORS 293.490 and 293.495; but if, after payment of such amounts, the estate of the decedent is probated, the person receiving the moneys due the decedent shall account therefor to the administrator of the estate of the decedent.