Mont. Code Ann. § 27-19-405

If the injunction order is dissolved because the alleged injury is not irreparable and is capable of being adequately compensated for in money, the court or judge shall require the enjoined party to execute an undertaking in such form and amount and with such sureties as the court or judge may direct, conditioned to indemnify the party who obtained the injunction order against loss sustained by reason of the dissolution.