Hours Of Operations Otter Tail Power Company Minnesota Barnesville Otter Tail Power Company Hours of Operation and Locations in Barnesville, MN 4.8 - 14 votes 1 Locations in Barnesville www.otpco.com Otter Tail Power Company Hours Category: Home & Garden Otter Tail Power Company - Barnesville, MN 56514 814 4th Ave Ne(218) 354-7314 View Store Details 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