Iowa Electric Light & Power Co. v. Lagle , 430 N.W.2d 393 ( 1988 )
Archer Daniels Midland Co. v. State, Department of Commerce, Utilities Division , 485 N.W.2d 465 ( 1992 )
Equal Access Corp. v. Utilities Bd. , 510 N.W.2d 147 ( 1993 )