424 results
Page 6 of 22
CORRESP
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13 Sep 13
Correspondence with SEC
12:00am
8-K
EX-99
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1 May 13
MDU Resources Reports First Quarter Earnings and Increases Earnings Guidance
12:00am
8-K
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25 Apr 13
Submission of Matters to a Vote of Security Holders
12:00am
8-K
EX-3.1
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7 Mar 13
Departure of Directors or Certain Officers
12:00am
8-K
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7 Mar 13
Departure of Directors or Certain Officers
12:00am
8-K
EX-99
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5 Feb 13
MDU Resources Reports 2012 Results, Initiates Guidance for 2013
12:00am
8-K
EX-99
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1 Nov 12
MDU Resources Reports Third Quarter Earnings
12:00am
8-K
EX-3.1
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21 Aug 12
Departure of Directors or Certain Officers
12:00am