MDU RESOURCES GROUP INC

SCHUCHART BUILDING, 918 EAST DIVIDE AVENUE, BISMARCK ND 58501, 7012227900
GAS & OTHER SERVICES COMBINED

1998 SEC Filings

MDU RESOURCES GROUP INC, 8-K, 1998-12-01
MDU RESOURCES GROUP INC, 424B3, 1998-11-30
MDU RESOURCES GROUP INC, 8-A12B, 1998-11-12
MDU RESOURCES GROUP INC, 10-Q, 1998-11-12
MDU RESOURCES GROUP INC, 424B3, 1998-09-16
MDU RESOURCES GROUP INC, 10-Q, 1998-08-13
MDU RESOURCES GROUP INC, S-8 POS, 1998-07-13
MDU RESOURCES GROUP INC, POS AM, 1998-07-13
MDU RESOURCES GROUP INC, 424B3, 1998-07-13
MDU RESOURCES GROUP INC, 8-K, 1998-07-07
MDU RESOURCES GROUP INC, 10-Q, 1998-05-12
MDU RESOURCES GROUP INC, SC 13G/A, 1998-04-29
MDU RESOURCES GROUP INC, 8-K, 1998-04-22
MDU RESOURCES GROUP INC, 424B5, 1998-04-22
MDU RESOURCES GROUP INC, 8-K, 1998-04-17
MDU RESOURCES GROUP INC, 424B5, 1998-04-03
MDU RESOURCES GROUP INC, 11-K, 1998-03-27
MDU RESOURCES GROUP INC, S-3, 1998-03-25
MDU RESOURCES GROUP INC, SC 13G, 1998-03-13
MDU RESOURCES GROUP INC, DEF 14A, 1998-03-09
MDU RESOURCES GROUP INC, 10-K, 1998-03-06


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