Oregon Revised Statutes Mineral Resources § 520.125

(1) The governing board of the State Department of Geology and Mineral Industries may summon witnesses, administer oaths and require the production of records, books and documents for examination at any hearing or investigation conducted before the board.

(2) In case of failure or refusal on the part of any person to comply with the subpoena issued by the board or in the case of the refusal of any witness to testify as to any matter regarding which the witness may lawfully be interrogated it shall be the duty of the circuit court of any county or any judge thereof, upon application of the board, to issue an order to show cause why such person should not be held for contempt as in the case of disobedience of the requirements of a subpoena issued from such court or a refusal to testify therein.

(3) The board may, in any matter before the board, cause the depositions of witnesses residing within or without the state to be taken in the manner prescribed by law for like depositions in civil suits in the circuit courts of this state.