161 results
Page 5 of 9
424B3
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19 Jun 09
Prospectus supplement
12:00am
424B2
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5 Sep 08
Prospectus for primary offering
12:00am
S-3ASR
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28 May 08
Automatic shelf registration
12:00am
8-K
EX-99
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25 Jan 08
MDU Resources’ 2007 Earnings Grow 37 Percent to Record Level
12:00am
8-K
EX-4
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16 Aug 07
Entry into a Material Definitive Agreement
12:00am