Hours Of Operations Otter Tail Power Company Minnesota Hallock Otter Tail Power Company Hours of Operation and Locations in Hallock, MN 4.8 - 14 votes 1 Locations in Hallock www.otpco.com Otter Tail Power Company Hours Category: Home & Garden Otter Tail Power Company - Hallock, MN 56728 546 Atlantic Ave S(218) 843-3661 View Store Details Explore HallockView More Apparel Carhartt Recommend For You Peoples Gas Pepco Runnings Farm & Fleet Tucson Electric Power United Power Urgent Care of Connecticut Aero Energy Bellagio Salon Blind Barber Dairyland Power Cooperative