Oregon Revised Statutes Insurance § 731.300

(1) The Director of the Department of Consumer and Business Services shall examine every authorized insurer, including an audit of the financial affairs of such insurer, as often as the director determines an examination to be necessary but at least once each five years. An examination shall be conducted for the purpose of determining the financial condition of the insurer, its ability to fulfill its obligations and its manner of fulfillment, the nature of its operations and its compliance with the Insurance Code. The director may also make such an examination of any surplus lines insurance producer or any person holding the capital stock of an authorized insurer or surplus lines insurance producer for the purpose of controlling the management thereof as a voting trustee or otherwise, or both.

(2) Instead of conducting an examination of an authorized foreign or alien insurer, the director may accept an examination report on the insurer that is prepared by the insurance department for the state of domicile or state of entry of the insurer if:

(3) Examination of an alien insurer shall be limited to its insurance transactions, assets, trust deposits and affairs in the United States except as otherwise required by the director.