Missouri Revised Statutes Title XXIX. Ownership and Conveyance of Property § 447.517. Utilities, funds held or owing presumed abandoned, when

(1) Any deposit made by a subscriber with a utility to secure payment for, or any sum paid in advance for, utility services to be furnished in this state, less any lawful deductions, that has remained unclaimed by the person appearing on the records of the utility entitled thereto for more than seven years or five years as provided in section 447.536 after the termination of the services for which the deposit or advance payment was made;

(2) Any sum which a utility has been ordered to refund and which was received for utility services rendered in this state, together with any interest thereon, less any lawful deductions, that has remained unclaimed by the person appearing on the records of the utility entitled thereto for more than seven years or five years as provided in section 447.536 after the date it became payable in accordance with the final determination or order providing for the refund.