MDU Resources Group, Inc. Share: UtilitiesEnergy & Environment MDU Resources Group, Inc. Visit Website 1200 W Century Ave Bismarck, ND 58503 (701) 530-1000 (701) 530-1731 (fax) Rep Info Map Whom to Contact Jayden Veil What's Nearby? Distance: 5 10 15 20 25 50 mi.