4
PRIMARY DOCUMENT
- Filing date
- 22 Nov 2011
- Reporting date
- 21 Nov 2011
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MDU RESOURCES GROUP INC reports
- Company location
- Bismarck, ND
- Fiscal year end
- 31 December
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
MDU RESOURCES GROUP INC has filed 1,792 SEC EDGAR filings since 11 Feb 1994
SEC filing history
Showing 951-975 of 1,000 matching filings.
Per page
25
Current page
39
8-K
File 001-03480
8-K
- Filing date
- 21 Nov 2011
- Reporting date
- 17 Nov 2011
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S-3ASR
File 333-178042
S-3ASR
- Filing date
- 18 Nov 2011
- Reporting date
- Not listed
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4
PRIMARY DOCUMENT
- Filing date
- 15 Nov 2011
- Reporting date
- 15 Nov 2011
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4
PRIMARY DOCUMENT
- Filing date
- 14 Nov 2011
- Reporting date
- 11 Nov 2011
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10-Q
File 001-03480
MDU RESOURCES GROUP, INC. 3RD QUARTER 2011 FORM 10-Q
- Filing date
- 04 Nov 2011
- Reporting date
- 30 Sep 2011
- SEC evidence
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 01 Nov 2011
- Reporting date
- 30 Sep 2011
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 17 Oct 2011
- Reporting date
- 17 Oct 2011
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UPLOAD
UPLOAD filing
- Filing date
- 03 Oct 2011
- Reporting date
- Not listed
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4
PRIMARY DOCUMENT
- Filing date
- 30 Sep 2011
- Reporting date
- 30 Sep 2011
- SEC evidence
- Open document Open filing
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CORRESP
CORRESP filing
- Filing date
- 29 Sep 2011
- Reporting date
- Not listed
- SEC evidence
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CORRESP
CORRESP filing
- Filing date
- 02 Sep 2011
- Reporting date
- Not listed
- SEC evidence
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UPLOAD
UPLOAD filing
- Filing date
- 31 Aug 2011
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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10-Q
File 001-03480
MDU RESOURCES GROUP, INC. 2ND QUARTER 2011 FORM 10-Q
- Filing date
- 05 Aug 2011
- Reporting date
- 30 Jun 2011
- SEC evidence
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 02 Aug 2011
- Reporting date
- 30 Jun 2011
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4
PRIMARY DOCUMENT
- Filing date
- 30 Jun 2011
- Reporting date
- 30 Jun 2011
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 27 Jun 2011
- Reporting date
- 27 Jun 2011
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11-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 11-K
- Filing date
- 14 Jun 2011
- Reporting date
- 31 Dec 2010
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 27 May 2011
- Reporting date
- 24 May 2011
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4
FORM 4
- Filing date
- 25 May 2011
- Reporting date
- 23 May 2011
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S-3ASR
File 333-174326
MDU RESOURCES GROUP, INC. FORM S-3ASR
- Filing date
- 19 May 2011
- Reporting date
- Not listed
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8-K/A
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K/A
- Filing date
- 13 May 2011
- Reporting date
- 26 Apr 2011
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10-Q
File 001-03480
MDU RESOURCES GROUP, INC. 1ST QUARTER 2011 FORM 10-Q
- Filing date
- 05 May 2011
- Reporting date
- 31 Mar 2011
- SEC evidence
- Open document Open filing Open XBRL
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3
PRIMARY DOCUMENT
- Filing date
- 04 May 2011
- Reporting date
- 02 May 2011
- SEC evidence
- Open document Open filing
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8-K
File 001-03480
MDU RESOURCES GROUP, INC. FORM 8-K
- Filing date
- 03 May 2011
- Reporting date
- 31 Mar 2011
- SEC evidence
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