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MDU        0000067716    
Filing Date Form Type Description Document
2020-04-01 4 View Document
2020-03-27 DEFA14A DEFA14A View Document
2020-03-27 DEF 14A DEF 14A View Document
2020-03-10 4 View Document
2020-02-21 10-K 10-K View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-18 4 View Document
2020-02-14 SC 13G View Document
2020-02-12 SC 13G/A SCHEDULE 13G/A View Document
2020-02-04 8-K MDU RESOURCES GROUP, INC. FORM 8-K View Document
2020-02-04 SC 13G/A View Document
2019-12-31 4 View Document
2019-12-09 8-K MDU RESOURCES FORM 8-K EARNINGS GUIDANCE View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-20 4 View Document
2019-11-18 8-K MDU RESOURCES FORM 8-K CAP EX View Document
2019-11-18 S-8 S-8 View Document
2019-11-01 10-Q MDU RESOURCES FORM 10-Q 9-30-2019 View Document
2019-10-30 8-K MDU RESOURCES GROUP, INC. FORM 8-K View Document
2019-10-04 8-K 8-K View Document
2019-10-01 4 View Document
2019-08-02 10-Q MDU RESOURCES FORM 10-Q 6-30-2019 View Document
2019-07-30 8-K MDU RESOURCES GROUP, INC. FORM 8-K View Document
2019-07-01 4 View Document
2019-06-14 11-K MDU RESOURCES FORM 11-K View Document
2019-06-07 SC 13G/A View Document
2019-05-31 4 PRIMARY DOCUMENT View Document
2019-05-31 4 PRIMARY DOCUMENT View Document
2019-05-30 SD SD View Document
2019-05-20 4 PRIMARY DOCUMENT View Document
2019-05-08 3 PRIMARY DOCUMENT View Document
2019-05-08 8-K 8-K View Document
2019-05-03 10-Q MDU RESOURCES FORM 10-Q 3-31-2019 View Document
2019-04-30 8-K MDU RESOURCES GROUP, INC. FORM 8-K View Document
2019-04-01 4 PRIMARY DOCUMENT View Document
2019-03-22 DEFA14A DEFA14A View Document
2019-03-22 DEF 14A DEF 14A View Document
2019-03-14 4 PRIMARY DOCUMENT View Document
2019-03-08 PRE 14A PRE 14A View Document
2019-02-22 8-K 8-K View Document
2019-02-22 424B5 424B5 View Document
2019-02-22 10-K MDU RESOURCES 2018 FORM 10-K View Document
2019-02-20 4 PRIMARY DOCUMENT View Document
2019-02-19 8-K MDU RESOURCES FORM 8-K View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-19 4 PRIMARY DOCUMENT View Document
2019-02-15 8-K 8-K View Document
2019-02-14 SC 13G MDU RESOURCES GROUP, INC. View Document
2019-02-13 SC 13G/A SC 13G/A View Document
2019-02-11 SC 13G/A View Document
2019-02-06 SC 13G/A View Document
2019-02-06 8-K MDU RESOURCES GROUP, INC. FORM 8-K View Document
2019-01-14 15-12B 15-12B View Document
2019-01-09 5 PRIMARY DOCUMENT View Document
2019-01-02 25-NSE View Document
2019-01-02 S-8 POS S-8 POS View Document
2019-01-02 S-8 POS S-8 POS View Document
2019-01-02 S-8 POS S-8 POS View Document
2019-01-02 POSASR POSASR View Document
2019-01-02 8-K12B 8-K12B View Document
2019-01-02 8-K 8-K View Document
2018-12-31 4 PRIMARY DOCUMENT View Document
2018-12-18 8-K MDU RESOURCES FORM 8-K View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 4 PRIMARY DOCUMENT View Document
2018-11-21 8-K MDU RESOURCES FORM 8-K CAP EX View Document
2018-11-19 3 PRIMARY DOCUMENT View Document
2018-11-15 8-K 8-K View Document
2018-11-02 10-Q MDU RESOURCES FORM 10-Q 09-30-2018 View Document
2018-11-01 8-K MDU RESOURCES FORM 8-K View Document

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