MDU RESOURCES GROUP INC reports

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

MDU RESOURCES GROUP INC has filed 1,798 SEC EDGAR filings since 11 Feb 1994

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SEC filing history

Showing 851-875 of 1,000 matching filings.

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25

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35

4

PRIMARY DOCUMENT

Filing date: 23 May 2013
Reporting date: 22 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

3

PRIMARY DOCUMENT

Filing date: 22 May 2013
Reporting date: 16 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 22 May 2013
Reporting date: 21 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 May 2013
Reporting date: 20 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

3

PRIMARY DOCUMENT

Filing date: 20 May 2013
Reporting date: 16 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 20 May 2013
Reporting date: 20 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-174326

424B5

Filing date: 20 May 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 May 2013
Reporting date: 17 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 17 May 2013
Reporting date: 16 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 May 2013
Reporting date: 15 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 15 May 2013
Reporting date: 14 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2013
Reporting date: 13 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 13 May 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2013
Reporting date: 10 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 May 2013
Reporting date: 09 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 09 May 2013
Reporting date: 08 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 May 2013
Reporting date: 07 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 May 2013
Reporting date: 07 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 May 2013
Reporting date: 07 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 May 2013
Reporting date: 07 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-03480

MDU RESOURCES GROUP, INC. 1ST QUARTER 2013 FORM 10-Q

Filing date: 07 May 2013
Reporting date: 31 Mar 2013
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 ITEM 1.04

Filing date: 06 May 2013
Reporting date: 01 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 01 May 2013
Reporting date: 30 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03480

8-K

Filing date: 25 Apr 2013
Reporting date: 23 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 17 Apr 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

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