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 676-700 of 1,000 matching filings.

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8-K File 001-03480

8-K

Filing date: 24 Jun 2015
Reporting date: 12 Jun 2015
SEC evidence: Open document Open filing
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11-K File 001-03480

MDU RESOURCES GROUP, INC. FORM 11-K

Filing date: 12 Jun 2015
Reporting date: 31 Dec 2014
SEC evidence: Open document Open filing
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8-K File 001-03480

8-K

Filing date: 08 Jun 2015
Reporting date: 03 Jun 2015
SEC evidence: Open document Open filing
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8-K File 001-03480

8-K

Filing date: 03 Jun 2015
Reporting date: 01 Jun 2015
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SD File 001-03480

SPECIALIZED DISCLOSURE REPORT

Filing date: 28 May 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
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8-A12B/A File 001-03480

8-A12B/A AMENDMENT NO. 9

Filing date: 08 May 2015
Reporting date: Not listed
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10-Q File 001-03480

MDU RESOURCES GROUP 3-31-2015 FORM 10-Q

Filing date: 08 May 2015
Reporting date: 31 Mar 2015
SEC evidence: Open document Open filing Open XBRL
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8-K/A File 001-03480

MDU RESOURCES FORM 8-K/A EARNINGS RELEASE 3.31.15

Filing date: 07 May 2015
Reporting date: 04 May 2015
SEC evidence: Open document Open filing
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8-K File 001-03480

MDU RESOURCES FORM 8-K EARNINGS RELEASE 3.31.15

Filing date: 05 May 2015
Reporting date: 04 May 2015
SEC evidence: Open document Open filing
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8-K File 001-03480

8-K ITEM 5.07

Filing date: 30 Apr 2015
Reporting date: 28 Apr 2015
SEC evidence: Open document Open filing
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8-K File 001-03480

CURRENT REPORT

Filing date: 07 Apr 2015
Reporting date: 02 Apr 2015
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 01 Apr 2015
Reporting date: 31 Mar 2015
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 01 Apr 2015
Reporting date: 31 Mar 2015
SEC evidence: Open document Open filing
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DEFR14A File 001-03480

DEFR14A

Filing date: 24 Mar 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
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S-8 POS File 333-158572

S-8 POS

Filing date: 19 Mar 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
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ARS File 001-03480

AUTO-GENERATED PAPER DOCUMENT

Filing date: 18 Mar 2015
Reporting date: 31 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-03480

DEF 14A

Filing date: 18 Mar 2015
Reporting date: 28 Apr 2015
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 03 Mar 2015
Reporting date: 01 Mar 2015
SEC evidence: Open document Open filing
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PRIMARY DOCUMENT

Filing date: 27 Feb 2015
Reporting date: 26 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

PRIMARY DOCUMENT

Filing date: 25 Feb 2015
Reporting date: 25 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-03480

MDU RESOURCES 2014 FORM 10-K

Filing date: 20 Feb 2015
Reporting date: 31 Dec 2014
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

PRIMARY DOCUMENT

Filing date: 19 Feb 2015
Reporting date: 18 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

PRIMARY DOCUMENT

Filing date: 18 Feb 2015
Reporting date: 17 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

PRIMARY DOCUMENT

Filing date: 18 Feb 2015
Reporting date: 17 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K/A File 001-03480

8-K/A

Filing date: 18 Feb 2015
Reporting date: 04 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing