MDU RESOURCES GROUP INC reports

Company location: Bismarck, ND
Fiscal year end: 31 December

MDU RESOURCES GROUP INC has filed 1,792 SEC EDGAR filings since 11 Feb 1994

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SEC filing history

Showing 976-1,000 of 1,000 matching filings.

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8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 29 Apr 2011
Reporting date: 26 Apr 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 27 Apr 2011
Reporting date: 26 Apr 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Apr 2011
Reporting date: 31 Mar 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

ARS File 001-03480

AUTO-GENERATED PAPER DOCUMENT

Filing date: 11 Mar 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-03480

DEFINITIVE PROXY STATEMENT

Filing date: 11 Mar 2011
Reporting date: 26 Apr 2011
SEC evidence: Open document Open filing
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4

PRIMARY DOCUMENT

Filing date: 24 Feb 2011
Reporting date: 23 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 10-K FOR PERIOD ENDED 12/31/2010

Filing date: 23 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 22 Feb 2011
Reporting date: 15 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-35797

13G/A FILING AS OF 12/31/10

Filing date: 11 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 11 Feb 2011
Reporting date: 10 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 03 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-35797

SC 13G/A filing

Filing date: 02 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

NO ACT File 001-03480

AUTO-GENERATED PAPER DOCUMENT

Filing date: 13 Jan 2011
Reporting date: 11 Jan 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8K

Filing date: 12 Jan 2011
Reporting date: 30 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jan 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Dec 2010
Reporting date: 08 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Dec 2010
Reporting date: 08 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Dec 2010
Reporting date: 08 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Dec 2010
Reporting date: 08 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 01 Dec 2010
Reporting date: 29 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 01 Dec 2010
Reporting date: 30 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 16 Nov 2010
Reporting date: 29 Oct 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Nov 2010
Reporting date: 15 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Nov 2010
Reporting date: 05 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES GROUP, INC. 3RD QUARTER 2010 FORM 10-Q

Filing date: 03 Nov 2010
Reporting date: 30 Sep 2010
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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