Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-25-000090
Filing Date
2025-11-10
Accepted
2025-11-10 08:31:45
Documents
145
Period of Report
2025-09-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES FORM 10-Q mdu-20250930.htm   iXBRL 10-Q 2416230
2 INTERMOUNTAIN NOTE PURCHASE AGREEMENT executednotepurchaseagre.htm EX-4.A 177586
3 CERTIFICATION OF CHIEF EXECUTIVE OFFICER a2025q3ex31a.htm EX-31.A 9049
4 CERTIFICATION OF CHIEF FINANCIAL OFFICER a2025q3ex31b.htm EX-31.B 8642
5 CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER a2025q3ex32.htm EX-32 5267
11 executednotepurchaseagre001.jpg GRAPHIC 40676
12 executednotepurchaseagre002.jpg GRAPHIC 187816
13 executednotepurchaseagre003.jpg GRAPHIC 210158
14 executednotepurchaseagre004.jpg GRAPHIC 164079
15 executednotepurchaseagre005.jpg GRAPHIC 61033
16 executednotepurchaseagre006.jpg GRAPHIC 85046
17 executednotepurchaseagre007.jpg GRAPHIC 176374
18 executednotepurchaseagre008.jpg GRAPHIC 267883
19 executednotepurchaseagre009.jpg GRAPHIC 271824
20 executednotepurchaseagre010.jpg GRAPHIC 264624
21 executednotepurchaseagre011.jpg GRAPHIC 289060
22 executednotepurchaseagre012.jpg GRAPHIC 271842
23 executednotepurchaseagre013.jpg GRAPHIC 262452
24 executednotepurchaseagre014.jpg GRAPHIC 252081
25 executednotepurchaseagre015.jpg GRAPHIC 230820
26 executednotepurchaseagre016.jpg GRAPHIC 283679
27 executednotepurchaseagre017.jpg GRAPHIC 233685
28 executednotepurchaseagre018.jpg GRAPHIC 273563
29 executednotepurchaseagre019.jpg GRAPHIC 305471
30 executednotepurchaseagre020.jpg GRAPHIC 248972
31 executednotepurchaseagre021.jpg GRAPHIC 282375
32 executednotepurchaseagre022.jpg GRAPHIC 242254
33 executednotepurchaseagre023.jpg GRAPHIC 275758
34 executednotepurchaseagre024.jpg GRAPHIC 275413
35 executednotepurchaseagre025.jpg GRAPHIC 305345
36 executednotepurchaseagre026.jpg GRAPHIC 269221
37 executednotepurchaseagre027.jpg GRAPHIC 265629
38 executednotepurchaseagre028.jpg GRAPHIC 267387
39 executednotepurchaseagre029.jpg GRAPHIC 264494
40 executednotepurchaseagre030.jpg GRAPHIC 289141
41 executednotepurchaseagre031.jpg GRAPHIC 228847
42 executednotepurchaseagre032.jpg GRAPHIC 249534
43 executednotepurchaseagre033.jpg GRAPHIC 294710
44 executednotepurchaseagre034.jpg GRAPHIC 285835
45 executednotepurchaseagre035.jpg GRAPHIC 235971
46 executednotepurchaseagre036.jpg GRAPHIC 281357
47 executednotepurchaseagre037.jpg GRAPHIC 267367
48 executednotepurchaseagre038.jpg GRAPHIC 273577
49 executednotepurchaseagre039.jpg GRAPHIC 302146
50 executednotepurchaseagre040.jpg GRAPHIC 275001
51 executednotepurchaseagre041.jpg GRAPHIC 291026
52 executednotepurchaseagre042.jpg GRAPHIC 267259
53 executednotepurchaseagre043.jpg GRAPHIC 248507
54 executednotepurchaseagre044.jpg GRAPHIC 274869
55 executednotepurchaseagre045.jpg GRAPHIC 251511
56 executednotepurchaseagre046.jpg GRAPHIC 316217
57 executednotepurchaseagre047.jpg GRAPHIC 279587
58 executednotepurchaseagre048.jpg GRAPHIC 273849
59 executednotepurchaseagre049.jpg GRAPHIC 238682
60 executednotepurchaseagre050.jpg GRAPHIC 57581
61 executednotepurchaseagre051.jpg GRAPHIC 46286
62 executednotepurchaseagre052.jpg GRAPHIC 48814
  Complete submission text file 0000067716-25-000090.txt   28870671

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20250930.xsd EX-101.SCH 55128
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20250930_cal.xml EX-101.CAL 110235
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20250930_def.xml EX-101.DEF 317143
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20250930_lab.xml EX-101.LAB 728471
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20250930_pre.xml EX-101.PRE 548375
148 EXTRACTED XBRL INSTANCE DOCUMENT mdu-20250930_htm.xml XML 2371369
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1000
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 301133956 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 251464553
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
(CF Office: 01 Energy & Transportation)