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

Filter by type:
10-K
10-Q
8-K
SC13D
SC13G

SEC filing history

Showing 901-925 of 1,000 matching filings.

Per page

25

Current page

37

4

PRIMARY DOCUMENT

Filing date: 20 Nov 2012
Reporting date: 16 Nov 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES GROUP, INC. 3RD QUARTER 2012 FORM 10-Q

Filing date: 07 Nov 2012
Reporting date: 30 Sep 2012
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 01 Nov 2012
Reporting date: 31 Oct 2012
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: 15 Oct 2012
Reporting date: 02 Oct 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 28 Sep 2012
Reporting date: 28 Sep 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 31 Aug 2012
Reporting date: 30 Aug 2012
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: 21 Aug 2012
Reporting date: 16 Aug 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES GROUP, INC. 2ND QUARTER 2012 FORM 10-Q

Filing date: 07 Aug 2012
Reporting date: 30 Jun 2012
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 02 Aug 2012
Reporting date: 01 Aug 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 29 Jun 2012
Reporting date: 29 Jun 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

11-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 11-K

Filing date: 14 Jun 2012
Reporting date: 31 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 30 May 2012
Reporting date: 29 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 29 May 2012
Reporting date: 25 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 May 2012
Reporting date: 24 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 May 2012
Reporting date: 24 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 24 May 2012
Reporting date: 23 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES GROUP, INC. 1ST QUARTER FORM 10-Q

Filing date: 04 May 2012
Reporting date: 31 Mar 2012
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 8-K

Filing date: 01 May 2012
Reporting date: 30 Apr 2012
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 2012
Reporting date: 24 Apr 2012
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: 18 Apr 2012
Reporting date: 17 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

ARS File 001-03480

AUTO-GENERATED PAPER DOCUMENT

Filing date: 09 Mar 2012
Reporting date: 31 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-03480

DEFINITIVE PROXY STATEMENT

Filing date: 09 Mar 2012
Reporting date: 24 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 06 Mar 2012
Reporting date: 01 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 01 Mar 2012
Reporting date: 28 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .