Document Format Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 1 | DEF 14A | mdu-20240328.htm iXBRL | DEF 14A | 2004169 |
| 6 | GRAPHIC | mdu-20240328_g1.jpg | GRAPHIC | 65328 |
| 7 | GRAPHIC | mdu-20240328_g10.jpg | GRAPHIC | 644451 |
| 8 | GRAPHIC | mdu-20240328_g11.jpg | GRAPHIC | 3784 |
| 9 | GRAPHIC | mdu-20240328_g12.jpg | GRAPHIC | 3124 |
| 10 | GRAPHIC | mdu-20240328_g13.jpg | GRAPHIC | 2845 |
| 11 | GRAPHIC | mdu-20240328_g14.jpg | GRAPHIC | 68126 |
| 12 | GRAPHIC | mdu-20240328_g15.jpg | GRAPHIC | 2744 |
| 13 | GRAPHIC | mdu-20240328_g16.jpg | GRAPHIC | 2124 |
| 14 | GRAPHIC | mdu-20240328_g17.jpg | GRAPHIC | 55438 |
| 15 | GRAPHIC | mdu-20240328_g18.jpg | GRAPHIC | 64384 |
| 16 | GRAPHIC | mdu-20240328_g19.jpg | GRAPHIC | 229520 |
| 17 | GRAPHIC | mdu-20240328_g2.jpg | GRAPHIC | 100900 |
| 18 | GRAPHIC | mdu-20240328_g20.jpg | GRAPHIC | 61172 |
| 19 | GRAPHIC | mdu-20240328_g21.jpg | GRAPHIC | 1677 |
| 20 | GRAPHIC | mdu-20240328_g22.jpg | GRAPHIC | 76659 |
| 21 | GRAPHIC | mdu-20240328_g23.jpg | GRAPHIC | 2707 |
| 22 | GRAPHIC | mdu-20240328_g24.jpg | GRAPHIC | 6739 |
| 23 | GRAPHIC | mdu-20240328_g25.jpg | GRAPHIC | 2987 |
| 24 | GRAPHIC | mdu-20240328_g26.jpg | GRAPHIC | 752095 |
| 25 | GRAPHIC | mdu-20240328_g27.jpg | GRAPHIC | 1299199 |
| 26 | GRAPHIC | mdu-20240328_g28.jpg | GRAPHIC | 151229 |
| 27 | GRAPHIC | mdu-20240328_g29.jpg | GRAPHIC | 65306 |
| 28 | GRAPHIC | mdu-20240328_g3.jpg | GRAPHIC | 7681 |
| 29 | GRAPHIC | mdu-20240328_g30.jpg | GRAPHIC | 98272 |
| 30 | mdu-20240328_g31.jpg | GRAPHIC | 33551 | |
| 31 | mdu-20240328_g32.jpg | GRAPHIC | 267820 | |
| 32 | GRAPHIC | mdu-20240328_g33.jpg | GRAPHIC | 228660 |
| 33 | mdu-20240328_g34.jpg | GRAPHIC | 325999 | |
| 34 | mdu-20240328_g35.jpg | GRAPHIC | 557464 | |
| 35 | mdu-20240328_g36.jpg | GRAPHIC | 548465 | |
| 36 | GRAPHIC | mdu-20240328_g37.jpg | GRAPHIC | 493810 |
| 37 | GRAPHIC | mdu-20240328_g38.jpg | GRAPHIC | 498340 |
| 38 | GRAPHIC | mdu-20240328_g39.jpg | GRAPHIC | 552454 |
| 39 | GRAPHIC | mdu-20240328_g4.jpg | GRAPHIC | 15282 |
| 40 | GRAPHIC | mdu-20240328_g40.jpg | GRAPHIC | 493545 |
| 41 | GRAPHIC | mdu-20240328_g41.jpg | GRAPHIC | 48172 |
| 42 | GRAPHIC | mdu-20240328_g42.jpg | GRAPHIC | 58876 |
| 43 | GRAPHIC | mdu-20240328_g43.jpg | GRAPHIC | 49424 |
| 44 | GRAPHIC | mdu-20240328_g44.jpg | GRAPHIC | 76195 |
| 45 | GRAPHIC | mdu-20240328_g45.jpg | GRAPHIC | 55972 |
| 46 | GRAPHIC | mdu-20240328_g46.jpg | GRAPHIC | 61882 |
| 47 | GRAPHIC | mdu-20240328_g47.jpg | GRAPHIC | 59407 |
| 48 | GRAPHIC | mdu-20240328_g48.jpg | GRAPHIC | 70560 |
| 49 | GRAPHIC | mdu-20240328_g49.jpg | GRAPHIC | 86051 |
| 50 | GRAPHIC | mdu-20240328_g5.jpg | GRAPHIC | 27079 |
| 51 | GRAPHIC | mdu-20240328_g50.jpg | GRAPHIC | 61162 |
| 52 | GRAPHIC | mdu-20240328_g51.jpg | GRAPHIC | 56843 |
| 53 | GRAPHIC | mdu-20240328_g52.jpg | GRAPHIC | 49573 |
| 54 | GRAPHIC | mdu-20240328_g53.jpg | GRAPHIC | 90993 |
| 55 | GRAPHIC | mdu-20240328_g54.jpg | GRAPHIC | 76312 |
| 56 | GRAPHIC | mdu-20240328_g55.jpg | GRAPHIC | 91916 |
| 57 | GRAPHIC | mdu-20240328_g56.jpg | GRAPHIC | 15282 |
| 58 | GRAPHIC | mdu-20240328_g57.jpg | GRAPHIC | 681926 |
| 59 | GRAPHIC | mdu-20240328_g58.jpg | GRAPHIC | 278934 |
| 60 | GRAPHIC | mdu-20240328_g6.jpg | GRAPHIC | 127473 |
| 61 | GRAPHIC | mdu-20240328_g7.jpg | GRAPHIC | 82833 |
| 62 | GRAPHIC | mdu-20240328_g8.jpg | GRAPHIC | 58043 |
| 63 | GRAPHIC | mdu-20240328_g9.jpg | GRAPHIC | 964394 |
| Complete submission text file | 0000067716-24-000042.txt | 30458898 |
Data Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 2 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | mdu-20240328.xsd | EX-101.SCH | 5415 |
| 3 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | mdu-20240328_def.xml | EX-101.DEF | 7942 |
| 4 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | mdu-20240328_lab.xml | EX-101.LAB | 11166 |
| 5 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | mdu-20240328_pre.xml | EX-101.PRE | 7180 |
| 75 | EXTRACTED XBRL INSTANCE DOCUMENT | mdu-20240328_htm.xml | XML | 164397 |
IRS No.: 301133956 | Fiscal Year End: 1231
Type: DEF 14A | Act: 34 | File No.: 001-03480 | Film No.: 24802351
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
(CF Office: 01 Energy & Transportation)
