Serial Number: 78951774
Owner: (REGISTRANT) MDU Resources Group, Inc. CORPORATION DELAWARE 1200 West Century Avenue Bismarck NORTH DAKOTA 58506
Filed on: 08/14/2006
Serial Number: 78110070
Owner: (REGISTRANT) MDU Resources Group, Inc. CORPORATION DELAWARE 1200 West Century Avenue Bismarck NORTH DAKOTA 58506
Filed on: 02/20/2002
Serial Number: 78105845
Owner: (REGISTRANT) MDU RESOURCES GROUP, INC. CORPORATION DELAWARE 1200 West Century Avenue Bismarck NORTH DAKOTA 58506
Filed on: 01/30/2002
Serial Number: 78951779
Owner: (REGISTRANT) MDU Resources Group, Inc. CORPORATION DELAWARE 1200 West Century Avenue Bismarck NORTH DAKOTA 58506
Filed on: 08/14/2006
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