MDU: MDU Resources Group, Inc.
Symbol: MDU
CIK: 0000067716
Listing Date: Sept. 20, 1948
SIC: 1400 MINING & QUARRYING OF NONMETALLIC MINERALS (NO FUELS)
MDU Resources Group, Inc. is a Common Stock traded at NYSE.
Address:
1200 WEST CENTURY AVENUE
BISMARCK, ND 58503
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