Agreement with Coral Power, L.L.C. (Coral) under the NU SystemApril 19th, 2016FiledApril 19th, 2016additional shares of Common Stock, par value $3.33 in connection with MDU’s tax deferred compensation savings plan for collective bargaining unit
additional shares of Common Stock, par value $3.33 in connection with MDU’s tax deferred compensation savings plan for collective bargaining unit