Mont. Code Ann. § 33-2-1374

33-2-1374 . Unclaimed and withheld funds. (1) All unclaimed funds subject to distribution remaining in the liquidator's hands when the liquidator is ready to apply to the court for discharge, including the amount distributable to any creditor, shareholder, member, or other person who is unknown or cannot be found, must be deposited with the state treasurer and must be paid without interest except in accordance with 33-2-1371 to the person entitled to the funds or the person's legal representative upon proof satisfactory to the state treasurer of the person's right to the funds. Any amount on deposit not claimed within 6 years from the discharge of the liquidator must be considered to have been abandoned and must be escheated without formal escheat proceedings and be deposited in the general fund.

(2) All funds withheld under 33-2-1366 and not distributed must upon discharge of the liquidator be deposited with the state treasurer and paid in accordance with 33-2-1371 . Any sums remaining that under 33-2-1371 would revert to the undistributed assets of the insurer must be transferred to the state treasurer and become the property of the state under subsection (1) unless the commissioner petitions the court to reopen the liquidation under 33-2-1376 .