798 filings
Page 22 of 40
8-K
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28 Oct 10
MDU Resources Reports Third Quarter Earnings, Updates Earnings Guidance
12:00am
8-K
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21 Oct 10
MDU Resources announces arbitration decision
12:00am
8-K
58cyupm 7g
17 Aug 10
Entry into a Material Definitive Agreement
12:00am
8-K
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3 Aug 10
MDU Resources Reports Second Quarter Earnings, Reaffirms 2010 Earnings Guidance
12:00am
8-K
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18 Jun 10
Termination of a Material Definitive Agreement
12:00am
11-K
341 yxbwz
17 Jun 10
Annual report of employee stock purchases
12:00am
8-K
2uzroy1
30 Apr 10
Submission of Matters to a Vote of Security Holders
12:00am
8-K
orah5m9i93d
30 Apr 10
MDU Resources Reports First Quarter Earnings, Reaffirms 2010 Earnings Guidance and Announces Niobrara Leasehold Additions
12:00am
8-A12B/A
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30 Apr 10
Registration of securities on exchange (amended)
12:00am
AW
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30 Apr 10
Withdrawal of amendment
12:00am
S-8 POS
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30 Apr 10
Registration of securities for employees (post-effective amendment)
12:00am
POS AM
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19 Apr 10
Prospectus update (post-effective amendment)
12:00am
8-K
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8 Apr 10
Other Events
12:00am
DEFA14A
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8 Apr 10
Additional proxy soliciting materials
12:00am
ARS
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15 Mar 10
Annual report to shareholders
12:00am
8-K
2ope9
11 Mar 10
Departure of Directors or Certain Officers
12:00am