Directory List of /Archives/edgar/data/67716/000006771612000031

Name	Size	Last Modified
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0000067716-12-000031-index.html		2012-02-24 10:12:39
0000067716-12-000031.txt		2012-02-24 10:12:39
0000067716-12-000031-xbrl.zip	622558	2012-02-24 10:12:39
FilingSummary.xml	53842	2012-02-24 10:12:39
Financial_Report.xls	5404879	2012-02-24 10:12:39
mdu-20111231.xml	6433578	2012-02-24 10:12:39
mdu-20111231.xsd	126085	2012-02-24 10:12:39
mdu-20111231_cal.xml	171812	2012-02-24 10:12:39
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mdu123111-10k.htm	4746519	2012-02-24 10:12:39
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R96.htm	44647	2012-02-24 10:12:39
R97.htm	31870	2012-02-24 10:12:39
R98.htm	50559	2012-02-24 10:12:39
R99.htm	455781	2012-02-24 10:12:39
report.css	2721	2012-02-24 10:12:39
Show.js	6423	2012-02-24 10:12:39

Directory Listing /Archives/edgar/data/67716/000006771612000031