Mills Gas Mart ← View details 3264 4th Street Southwest, Mason City, IA 50401 +1 641-423-5417 Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Sunday: 06:00 am — 10:00 pm Monday: 06:00 am — 10:00 pm Tuesday: 06:00 am — 10:00 pm Wednesday: 06:00 am — 10:00 pm Thursday: 06:00 am — 10:00 pm Friday: 06:00 am — 10:00 pm Saturday: 06:00 am — 10:00 pm Your comments * — Required information