Mont. Code Ann. § 32-1-537

32-1-537 . Disposition of unclaimed funds. (1) The department shall certify to the state treasurer a complete list of funds remaining with it that are uncalled for and that have been left with it in its official capacity in trust for depositors in and creditors of a liquidated bank after they have been held by it for 6 months from the date of the final liquidation of the institution. Along with this certificate, the department shall transmit to the state treasurer the funds, with accumulated interest on them, that it has held in trust for 6 months. A copy of the certificate must also be filed with the state auditor, who shall make a record of it.

(2) The state treasurer shall deposit the funds and interest in the general fund.

(3) A depositor or creditor of a liquidated bank who has not been paid the amount standing to the person's credit as certified to the state treasurer may apply to the department for the amount due. The depositor or creditor shall make an affidavit and offer proof of identity and of the amount due. When satisfied as to the correctness of the claim and of the identity of the person, the department shall forward it to the state treasurer who shall audit the claim and, if found correct, certify the claim to the department. If the department approves the claim, it shall pay the claim to the depositor or creditor.