Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000067716-19-000086-index-headers.html | 2019-12-09 17:00:53 | |
| 0000067716-19-000086-index.html | 2019-12-09 17:00:53 | |
| 0000067716-19-000086.txt | 2019-12-09 17:00:53 | |
 0000067716-19-000086-xbrl.zip | 17382 | 2019-12-09 17:00:53 |
| a2019ex99-earningsguid.htm | 7611 | 2019-12-09 17:00:53 |
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| a2019form8-kearningsgu_htm.xml | 4392 | 2019-12-09 17:00:53 |
| FilingSummary.xml | 1757 | 2019-12-09 17:00:53 |
| Financial_Report.xlsx | 5815 | 2019-12-09 17:00:53 |
| mdu-20191209.xsd | 4562 | 2019-12-09 17:00:53 |
| mdu-20191209_cal.xml | 609 | 2019-12-09 17:00:53 |
| mdu-20191209_def.xml | 14577 | 2019-12-09 17:00:53 |
| mdu-20191209_lab.xml | 31381 | 2019-12-09 17:00:53 |
| mdu-20191209_pre.xml | 16430 | 2019-12-09 17:00:53 |
 mdurirpressreleasebasa07.jpg | 748436 | 2019-12-09 17:00:53 |
| MetaLinks.json | 21315 | 2019-12-09 17:00:53 |
| R1.htm | 40402 | 2019-12-09 17:00:53 |
| report.css | 2767 | 2019-12-09 17:00:53 |
| Show.js | 1085 | 2019-12-09 17:00:53 |