798 filings
Page 19 of 40
8-K
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6 May 13
Mine Safety - Reporting of Shutdowns and Patterns of Violations
12:00am
8-K
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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
CORRESP
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17 Apr 13
Correspondence with SEC
12:00am
UPLOAD
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15 Apr 13
Letter from SEC
12:00am
ARS
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14 Mar 13
Annual report to shareholders
12:00am
8-K
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7 Mar 13
Departure of Directors or Certain Officers
12:00am
8-K
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11 Feb 13
Departure of Directors or Certain Officers
12:00am
8-K
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5 Feb 13
MDU Resources Reports 2012 Results, Initiates Guidance for 2013
12:00am
8-K
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20 Nov 12
Departure of Directors or Certain Officers
12:00am
8-K/A
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20 Nov 12
Departure of Directors or Certain Officers
12:00am
8-K
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1 Nov 12
MDU Resources Reports Third Quarter Earnings
12:00am
8-K
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15 Oct 12
Departure of Directors or Certain Officers
12:00am
8-K
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21 Aug 12
Departure of Directors or Certain Officers
12:00am
8-K
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2 Aug 12
MDU Resources Reports Second Quarter Earnings, Reaffirms 2012 Earnings Guidance
12:00am
11-K
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14 Jun 12
Annual report of employee stock purchases
12:00am