Oregon Revised Statutes Labor and Employment; Unlawful Discrimination § 657.690

(1) To hold sessions any place within the state.

(2) To administer oaths.

(3) To issue and serve, or by any sheriff, subpoenas for the attendance of employers or claimants and the production of papers, contracts, books, accounts, documents and testimony. The Employment Appeals Board may require the attendance and testimony of claimants or employers, their officers and representatives before any hearing or review before the Employment Appeals Board without payment or tender or witness fees on account of such attendance.