FILINGS
| MDU 0000067716 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2015-04-01 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-03-24 | DEFR14A | DEFR14A | View Document |
| 2015-03-19 | S-8 POS | S-8 POS | View Document |
| 2015-03-18 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
| 2015-03-18 | DEF 14A | DEF 14A | View Document |
| 2015-03-03 | 3 | PRIMARY DOCUMENT | View Document |
| 2015-02-27 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-02-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-02-20 | 10-K | MDU RESOURCES 2014 FORM 10-K | View Document |
| 2015-02-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-02-18 | 8-K/A | 8-K/A | View Document |
| 2015-02-18 | 8-K/A | 8-K/A | View Document |
| 2015-02-18 | 8-K | 8-K | View Document |
| 2015-02-12 | SC 13G | MDU | View Document |
| 2015-02-12 | SC 13G | SC 13G | View Document |
| 2015-02-11 | SC 13G/A | View Document | |
| 2015-02-03 | 8-K | MDU-12-31-2014 EARNINGS RELEASE | View Document |
| 2015-01-26 | SC 13G/A | View Document | |
| 2015-01-23 | 8-K | 8-K | View Document |
| 2015-01-14 | 3 | PRIMARY DOCUMENT | View Document |
| 2015-01-09 | 8-K | 8-K | View Document |
| 2015-01-08 | 8-K | View Document | |
| 2014-12-31 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-12-31 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-12-29 | 4/A | PRIMARY DOCUMENT | View Document |
| 2014-12-11 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-12-01 | 3 | PRIMARY DOCUMENT | View Document |
| 2014-11-24 | 8-K | 8-K | View Document |
| 2014-11-24 | 8-K | 8-K | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-11-13 | S-3ASR | S-3ASR | View Document |
| 2014-11-13 | 8-K | 8-K | View Document |
| 2014-11-07 | 10-Q | MDU 2014930 FORM 10-Q | View Document |
| 2014-11-04 | 8-K | 8-K | View Document |
| 2014-10-01 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-10-01 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-09-23 | 8-K | 8-K | View Document |
| 2014-09-15 | 8-K | 8-K | View Document |
| 2014-08-26 | S-8 | S-8 | View Document |
| 2014-08-19 | 8-A12B/A | 8-A12B/A | View Document |
| 2014-08-19 | 8-K | 8-K | View Document |
| 2014-08-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-08-08 | 10-Q | 10-Q | View Document |
| 2014-08-05 | 8-K | 8-K | View Document |
| 2014-07-21 | 8-K | MDU FORM 8-K ITEM 1 | View Document |
| 2014-06-30 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-06-30 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-06-18 | 11-K | 11-K | View Document |
| 2014-05-30 | SD | SD | View Document |
| 2014-05-19 | 8-K | 8-K | View Document |
| 2014-05-16 | 424B2 | PROSPECTUS SUPPLEMENT | View Document |
| 2014-05-15 | S-3ASR | S-3ASR | View Document |
| 2014-05-15 | 8-K | 8-K | View Document |
| 2014-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-05-08 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-05-07 | 10-Q | 10-Q | View Document |
| 2014-05-01 | 8-K | 8-K | View Document |
| 2014-04-24 | 8-K | 8-K | View Document |
| 2014-04-14 | 8-K | 8-K | View Document |
| 2014-03-31 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-03-31 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-03-13 | 8-K | 8-K | View Document |
| 2014-03-12 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
| 2014-03-12 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2014-02-24 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-24 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-21 | 10-K | 10-K | View Document |
| 2014-02-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-19 | 8-K/A | 8-K/A | View Document |
| 2014-02-19 | 8-K | 8-K | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2014-02-13 | 8-K | 8-K | View Document |
| 2014-02-12 | SC 13G/A | MDU AS OF 12/31/2013 | View Document |
| 2014-02-11 | SC 13G/A | View Document | |
| 2014-02-04 | 8-K | 8-K | View Document |
| 2014-02-03 | SC 13G | MDU | View Document |
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