Office Hours

MMU office hours are from 8:00 am to 4:30 pm Monday through Friday. Customers can visit us in person or use our convenient drive-up window during these times. Our office is closed on Saturdays, Sundays, and all major holidays. For EMERGENCY calls or to report an outage, please call our Operations Center at (507) 537-7005 24 hours a day 7 days a week.

Customer Service

  • Leslie Hisken Customer Service Manager
    Marshall, MN, United States
    Phone: (507) 537-7005
  • Jayne Jeremiason Customer Service Supervisor
    Marshall, Minnesota, United States
    Phone: (507) 537-7005
  • Mark Antony Energy Services Coordinator
    Marshall, Minnesota, United States
    Phone: (507) 537-7005
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