FILINGS
MDU 0000067716 | |||
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Filing Date | Form Type | Description | Document |
2013-04-15 | UPLOAD | View Document | |
2013-03-29 | 4 | PRIMARY DOCUMENT | View Document |
2013-03-14 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
2013-03-13 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
2013-03-07 | 8-K | 8-K | View Document |
2013-02-28 | 10-K | MDU RESOURCES GROUP, INC. 2012 FORM 10-K | View Document |
2013-02-14 | SC 13G/A | SCHEDULE 13G/A - 12/31/2012 | View Document |
2013-02-13 | SC 13G | View Document | |
2013-02-12 | SC 13G | View Document | |
2013-02-11 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2013-02-07 | SC 13G/A | MDU AS OF 12/31/2012 | View Document |
2013-02-05 | SC 13G/A | View Document | |
2013-02-05 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2013-01-08 | 3 | PRIMARY DOCUMENT | View Document |
2013-01-08 | 5 | PRIMARY DOCUMENT | View Document |
2012-12-31 | 4 | PRIMARY DOCUMENT | View Document |
2012-12-10 | 4 | PRIMARY DOCUMENT | View Document |
2012-12-10 | 4 | PRIMARY DOCUMENT | View Document |
2012-12-10 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-30 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-11-20 | 8-K/A | MDU RESOURCES GROUP, INC. FORM 8-K/A | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-20 | 4 | PRIMARY DOCUMENT | View Document |
2012-11-07 | 10-Q | MDU RESOURCES GROUP, INC. 3RD QUARTER 2012 FORM 10-Q | View Document |
2012-11-01 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-10-15 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-09-28 | 4 | PRIMARY DOCUMENT | View Document |
2012-08-31 | 4 | PRIMARY DOCUMENT | View Document |
2012-08-21 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-08-07 | 10-Q | MDU RESOURCES GROUP, INC. 2ND QUARTER 2012 FORM 10-Q | View Document |
2012-08-02 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-06-29 | 4 | PRIMARY DOCUMENT | View Document |
2012-06-14 | 11-K | MDU RESOURCES GROUP, INC. FORM 11-K | View Document |
2012-05-30 | 4 | PRIMARY DOCUMENT | View Document |
2012-05-29 | 4 | PRIMARY DOCUMENT | View Document |
2012-05-25 | 4 | PRIMARY DOCUMENT | View Document |
2012-05-25 | 4 | PRIMARY DOCUMENT | View Document |
2012-05-24 | 4 | PRIMARY DOCUMENT | View Document |
2012-05-04 | 10-Q | MDU RESOURCES GROUP, INC. 1ST QUARTER FORM 10-Q | View Document |
2012-05-01 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-04-27 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-04-18 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-04-12 | 4 | PRIMARY DOCUMENT | View Document |
2012-03-09 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
2012-03-09 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
2012-03-06 | 8-K | 8-K | View Document |
2012-03-01 | 4 | PRIMARY DOCUMENT | View Document |
2012-02-27 | 4 | PRIMARY DOCUMENT | View Document |
2012-02-24 | 4 | PRIMARY DOCUMENT | View Document |
2012-02-24 | 10-K | MDU RESOURCES GROUP, INC. 2011 FORM 10-K | View Document |
2012-02-21 | 4 | PRIMARY DOCUMENT | View Document |
2012-02-14 | SC 13G/A | 13G/A - AS OF 12/31/11 | View Document |
2012-02-14 | SC 13G | MDU AS OF 12/31/2011 | View Document |
2012-02-13 | SC 13G/A | View Document | |
2012-02-03 | 5 | PRIMARY DOCUMENT | View Document |
2012-02-02 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2012-01-03 | 4 | PRIMARY DOCUMENT | View Document |
2011-12-21 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-12-16 | S-8 POS | S-8 POS | View Document |
2011-12-16 | S-8 POS | S-8 POS | View Document |
2011-12-12 | 4 | PRIMARY DOCUMENT | View Document |
2011-12-12 | 4 | PRIMARY DOCUMENT | View Document |
2011-12-12 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-22 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-21 | 8-K | 8-K | View Document |
2011-11-18 | S-3ASR | S-3ASR | View Document |
2011-11-15 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-14 | 4 | PRIMARY DOCUMENT | View Document |
2011-11-04 | 10-Q | MDU RESOURCES GROUP, INC. 3RD QUARTER 2011 FORM 10-Q | View Document |
2011-11-01 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-10-17 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-10-03 | UPLOAD | View Document | |
2011-09-30 | 4 | PRIMARY DOCUMENT | View Document |
2011-09-29 | CORRESP | View Document | |
2011-09-02 | CORRESP | View Document | |
2011-08-31 | UPLOAD | View Document | |
2011-08-05 | 10-Q | MDU RESOURCES GROUP, INC. 2ND QUARTER 2011 FORM 10-Q | View Document |
2011-08-02 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-06-30 | 4 | PRIMARY DOCUMENT | View Document |
2011-06-27 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-06-14 | 11-K | MDU RESOURCES GROUP, INC. FORM 11-K | View Document |
2011-05-27 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
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