ORS § 731.367
An unincorporated authorized foreign insurer transfers its domicile to this state when the Director of the Department of Consumer and Business Services determines that it has complied with all of the requirements of law relating to the organization and authorization of a domestic insurer of the same type as provided in ORS 731.363. No merger, consolidation or other method shall be required to effect a transfer of the domicile of the unincorporated insurer to this state and no vote or approval of the policyholders, members or subscribers of the unincorporated insurer shall be required. Any agreement of indemnity, appointment or governance or any similar agreement shall continue in full force after the transfer if the unincorporated insurer remains an authorized insurer. The laws of this state, however, shall govern all such agreements regardless of any other law to the contrary, and such agreements shall be considered to be modified to reflect that this state is the principal place of business and domicile of the unincorporated insurer.
ORS 731.367