FILINGS
MDU 0000067716 | |||
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Filing Date | Form Type | Description | Document |
2011-05-25 | 4 | FORM 4 | View Document |
2011-05-19 | S-3ASR | MDU RESOURCES GROUP, INC. FORM S-3ASR | View Document |
2011-05-13 | 8-K/A | MDU RESOURCES GROUP, INC. FORM 8-K/A | View Document |
2011-05-05 | 10-Q | MDU RESOURCES GROUP, INC. 1ST QUARTER 2011 FORM 10-Q | View Document |
2011-05-04 | 3 | PRIMARY DOCUMENT | View Document |
2011-05-03 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-04-29 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-04-27 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-04-04 | 4 | PRIMARY DOCUMENT | View Document |
2011-03-11 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
2011-03-11 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
2011-02-24 | 4 | PRIMARY DOCUMENT | View Document |
2011-02-23 | 10-K | MDU RESOURCES GROUP, INC. FORM 10-K FOR PERIOD ENDED 12/31/2010 | View Document |
2011-02-22 | 8-K | 8-K | View Document |
2011-02-11 | SC 13G/A | 13G/A FILING AS OF 12/31/10 | View Document |
2011-02-11 | 4 | PRIMARY DOCUMENT | View Document |
2011-02-03 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2011-02-02 | SC 13G/A | View Document | |
2011-01-13 | NO ACT | AUTO-GENERATED PAPER DOCUMENT | View Document |
2011-01-12 | 8-K | 8K | View Document |
2011-01-03 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-08 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-08 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-08 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-08 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-01 | 4 | PRIMARY DOCUMENT | View Document |
2010-12-01 | 4 | PRIMARY DOCUMENT | View Document |
2010-11-16 | 8-K | 8-K | View Document |
2010-11-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-11-08 | 4 | PRIMARY DOCUMENT | View Document |
2010-11-03 | 10-Q | MDU RESOURCES GROUP, INC. 3RD QUARTER 2010 FORM 10-Q | View Document |
2010-10-28 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-10-21 | 8-K | MDU RESOURCES GROUP, INC. FORM 8K | View Document |
2010-09-30 | 4 | PRIMARY DOCUMENT | View Document |
2010-08-17 | 8-K | 8-K | View Document |
2010-08-06 | 10-Q | MDU RESOURCES GROUP, INC. 2ND QUARTER 2010 FORM 10-Q | View Document |
2010-08-03 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-06-30 | 4 | PRIMARY DOCUMENT | View Document |
2010-06-18 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-06-17 | 11-K | MDU RESOURCES GROUP, INC. 2009 FORM 11-K | View Document |
2010-05-26 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-24 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-24 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-18 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-10 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-07 | 4 | PRIMARY DOCUMENT | View Document |
2010-05-05 | 10-Q | MDU RESOURCES GROUP, INC. 1ST QUARTER 2010 FORM 10-Q | View Document |
2010-04-30 | S-8 POS | S-8 POS | View Document |
2010-04-30 | AW | AW | View Document |
2010-04-30 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-04-30 | 8-A12B/A | 8-A12B/A | View Document |
2010-04-30 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-04-19 | POS AM | View Document | |
2010-04-08 | DEFA14A | DEFA14A | View Document |
2010-04-08 | 8-K | 8-K | View Document |
2010-04-02 | 4 | PRIMARY DOCUMENT | View Document |
2010-03-15 | ARS | AUTO-GENERATED PAPER DOCUMENT | View Document |
2010-03-12 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
2010-03-11 | 8-K | 8-K | View Document |
2010-03-01 | 4 | PRIMARY DOCUMENT | View Document |
2010-03-01 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-23 | 3 | PRIMARY DOCUMENT | View Document |
2010-02-18 | 8-K | FORM 8-K | View Document |
2010-02-17 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-17 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-17 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-17 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-17 | 10-K | MDU RESOURCES GROUP, INC. FORM 10-K FOR PERIOD ENDED 12/31/2009 | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-16 | 4 | PRIMARY DOCUMENT | View Document |
2010-02-12 | SC 13G/A | 13G/A FILING AS OF 12/31/09 | View Document |
2010-02-03 | 5 | PRIMARY DOCUMENT | View Document |
2010-02-01 | PRE 14A | View Document | |
2010-02-01 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-01-29 | SC 13G | View Document | |
2010-01-19 | NO ACT | AUTO-GENERATED PAPER DOCUMENT | View Document |
2010-01-19 | 8-K | MDU RESOURCES GROUP, INC. FORM 8-K | View Document |
2010-01-07 | 8-K | FORM 8-K | View Document |
2009-12-31 | 4 | PRIMARY DOCUMENT | View Document |
2009-12-10 | 4 | PRIMARY DOCUMENT | View Document |
2009-12-10 | 4 | PRIMARY DOCUMENT | View Document |
2009-12-10 | 4 | PRIMARY DOCUMENT | View Document |
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