Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000067716-10-000047-index.html | 2010-05-05 09:33:52 | |
| 0000067716-10-000047.txt | 2010-05-05 09:33:52 | |
 0000067716-10-000047-xbrl.zip | 74662 | 2010-05-05 09:33:52 |
| defnref.xml | 27416 | 2010-05-05 09:33:52 |
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| exhibit10b.htm | 51404 | 2010-05-05 09:33:52 |
| exhibit12.htm | 54926 | 2010-05-05 09:33:52 |
| exhibit3.htm | 58868 | 2010-05-05 09:33:52 |
| exhibit31a.htm | 13311 | 2010-05-05 09:33:52 |
| exhibit31b.htm | 13697 | 2010-05-05 09:33:52 |
| exhibit32.htm | 7823 | 2010-05-05 09:33:52 |
| FilingSummary.xml | 11990 | 2010-05-05 09:33:52 |
| Financial_Report.xls | 107520 | 2010-05-05 09:33:52 |
| mdu-20100331.xml | 755253 | 2010-05-05 09:33:52 |
| mdu-20100331.xsd | 24283 | 2010-05-05 09:33:52 |
| mdu-20100331_cal.xml | 49936 | 2010-05-05 09:33:52 |
| mdu-20100331_lab.xml | 201979 | 2010-05-05 09:33:52 |
| mdu-20100331_pre.xml | 116635 | 2010-05-05 09:33:52 |
| mduform10-q.htm | 1532284 | 2010-05-05 09:33:52 |
| R1.xml | 85653 | 2010-05-05 09:33:52 |
| R10.xml | 14850 | 2010-05-05 09:33:52 |
| R11.xml | 9804 | 2010-05-05 09:33:52 |
| R12.xml | 17814 | 2010-05-05 09:33:52 |
| R13.xml | 13693 | 2010-05-05 09:33:52 |
| R14.xml | 36378 | 2010-05-05 09:33:52 |
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| R16.xml | 158803 | 2010-05-05 09:33:52 |
| R17.xml | 86347 | 2010-05-05 09:33:52 |
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| R20.xml | 62684 | 2010-05-05 09:33:52 |
| R21.xml | 14550 | 2010-05-05 09:33:52 |
| R22.xml | 53157 | 2010-05-05 09:33:52 |
| R23.xml | 9326 | 2010-05-05 09:33:52 |
| R24.xml | 11143 | 2010-05-05 09:33:52 |
| R25.xml | 44505 | 2010-05-05 09:33:52 |
| R3.xml | 18097 | 2010-05-05 09:33:52 |
| R4.xml | 102978 | 2010-05-05 09:33:52 |
| R5.xml | 10921 | 2010-05-05 09:33:52 |
| R6.xml | 9119 | 2010-05-05 09:33:52 |
| R7.xml | 8807 | 2010-05-05 09:33:52 |
| R8.xml | 10123 | 2010-05-05 09:33:52 |
| R9.xml | 9811 | 2010-05-05 09:33:52 |