MDU RESOURCES GROUP INC reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Bismarck, ND
SEC filing record 1 source field available
Fiscal year end
31 December
MDU RESOURCES GROUP INC has filed 1,798 SEC EDGAR filings since 11 Feb 1994

SEC filing history

Showing 926-950 of 1,000 matching filings.

Per page
25
Current page
38
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
4

PRIMARY DOCUMENT

Filing date
27 Feb 2012
Reporting date
24 Feb 2012
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
24 Feb 2012
Reporting date
23 Feb 2012
SEC evidence
Open document Open filing
Next action
Verify source filing
10-K File 001-03480

MDU RESOURCES GROUP, INC. 2011 FORM 10-K

Filing date
24 Feb 2012
Reporting date
31 Dec 2011
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
21 Feb 2012
Reporting date
16 Feb 2012
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G/A File 005-35797

13G/A - AS OF 12/31/11

Filing date
14 Feb 2012
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G File 005-35797

MDU AS OF 12/31/2011

Filing date
14 Feb 2012
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G/A File 005-35797

SC 13G/A filing

Filing date
13 Feb 2012
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
5

PRIMARY DOCUMENT

Filing date
03 Feb 2012
Reporting date
31 Dec 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
02 Feb 2012
Reporting date
31 Dec 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
03 Jan 2012
Reporting date
31 Dec 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
21 Dec 2011
Reporting date
19 Dec 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
S-8 POS File 333-84844

S-8 POS

Filing date
16 Dec 2011
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
S-8 POS File 333-112035

S-8 POS

Filing date
16 Dec 2011
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
12 Dec 2011
Reporting date
09 Dec 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
12 Dec 2011
Reporting date
09 Dec 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
12 Dec 2011
Reporting date
09 Dec 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
22 Nov 2011
Reporting date
21 Nov 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
22 Nov 2011
Reporting date
21 Nov 2011
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
22 Nov 2011
Reporting date
21 Nov 2011
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. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .