Mdu Resources Group Inc SEC filings MDU
Mdu Resources Group Inc has 1,004 filings in SEC EDGAR's recent list, going back to Dec 8, 2010. Its latest annual report, Form ARS, was filed on Apr 1, 2026 for the period ended Mar 31, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 13, 2026 | May 11, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 5, 2026 | Feb 5, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 16, 2026 | Jan 15, 2026 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 29, 2025 | Dec 23, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets
|
Dec 12, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 5, 2025 | Dec 3, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 20, 2025 | Nov 20, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 13, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Material agreement
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 15, 2025 | May 13, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Material agreement, Bylaw or fiscal year change, Regulation FD disclosure
|
Feb 14, 2025 | Feb 14, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 6, 2025 | Feb 6, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2024 | Nov 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 14, 2024 | Nov 14, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K | Current report | Nov 6, 2024 | Oct 31, 2024 |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets, Officer or director change, Regulation FD disclosure
|
Nov 1, 2024 | Oct 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 17, 2024 | Oct 17, 2024 |
| 8-K |
Current report
Other events
|
Oct 2, 2024 | Oct 1, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 3, 2024 | Sep 3, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 15, 2024 | Aug 15, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Other events
|
Jul 18, 2024 | Jul 18, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2024 | May 14, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2024 | May 2, 2024 |
| 8-K |
Current report
Material agreement
|
Mar 18, 2024 | Mar 14, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 13, 2024 | Mar 13, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 8, 2024 | Feb 8, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2023 | Nov 21, 2023 |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2023 | Nov 16, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 2, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2023 | Nov 2, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 17, 2023 | Aug 17, 2023 |
| 8-K |
Current report
Agreement ended
|
Aug 10, 2023 | Aug 10, 2023 |
| 8-K |
Current report
Other events
|
Aug 3, 2023 | Aug 2, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2023 | Aug 3, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 10, 2023 | Jul 10, 2023 |
| 8-K/A | Amended current report | Jun 7, 2023 | May 30, 2023 |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets, New debt, Officer or director change, Regulation FD disclosure, Other events
|
Jun 1, 2023 | May 30, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
May 12, 2023 | May 10, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 11, 2023 | May 9, 2023 |
| 8-K |
Current report
Other events
|
May 4, 2023 | May 3, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2023 | May 4, 2023 |
| 8-K |
Current report
Other events
|
May 4, 2023 | May 3, 2023 |
| 8-K |
Current report
Other events
|
Apr 25, 2023 | Apr 25, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 11, 2023 | Apr 11, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 10, 2023 | Apr 10, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 10, 2023 | Apr 7, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 17, 2023 | Feb 16, 2023 |
| 8-K |
Current report
Other events
|
Feb 16, 2023 | Feb 16, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 9, 2023 | Feb 9, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change, Other events
|
Jan 24, 2023 | Jan 24, 2023 |
| 8-K |
Current report
Other events
|
Dec 15, 2022 | Dec 14, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 22, 2022 | Nov 22, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 18, 2022 | Nov 17, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 17, 2022 | Nov 17, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2022 | Nov 3, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2022 | May 10, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2022 | May 4, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 9, 2022 | Feb 9, 2022 |
| 8-K | Current report | Jan 10, 2022 | Jan 6, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 23, 2021 | Nov 23, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K | Current report | Aug 16, 2021 | Aug 10, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2021 | Aug 4, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2021 | May 11, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 6, 2021 | May 5, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 12, 2021 | Mar 9, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 3, 2021 | Feb 3, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2020 | Dec 15, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 14, 2020 | Dec 14, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 19, 2020 | Nov 19, 2020 |
| 8-K |
Current report
Officer or director change
|
Nov 12, 2020 | Nov 12, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2020 | Nov 4, 2020 |
| 8-K | Current report | Oct 8, 2020 | Sep 16, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2020 | Aug 4, 2020 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2020 | May 12, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 7, 2020 | May 7, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 4, 2020 | Feb 4, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 9, 2019 | Dec 9, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 18, 2019 | Nov 18, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 30, 2019 | Oct 29, 2019 |
| 8-K | Current report | Oct 4, 2019 | Oct 1, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 30, 2019 | Jul 30, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 8, 2019 | May 7, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 30, 2019 | Apr 30, 2019 |
| 8-K |
Current report
Material agreement
|
Feb 22, 2019 | Feb 22, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 19, 2019 | Feb 19, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Feb 15, 2019 | Feb 14, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 6, 2019 | Feb 5, 2019 |
| 8-K |
Current report
Material agreement, Listing notice, Change to shareholder rights, Officer or director change, Bylaw or fiscal year change
|
Jan 2, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 18, 2018 | Dec 18, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2018 | Nov 20, 2018 |
| 8-K |
Current report
Officer or director change
|
Nov 15, 2018 | Nov 15, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2018 | Oct 31, 2018 |
| 8-K |
Current report
Officer or director change
|
Aug 16, 2018 | Aug 16, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 31, 2018 | Jul 31, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2018 | May 8, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2018 | May 2, 2018 |
| 8-K |
Current report
Other events
|
Mar 1, 2018 | Mar 1, 2018 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2018 | Feb 14, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 7, 2018 | Feb 6, 2018 |
| 8-K |
Current report
Other events
|
Nov 21, 2017 | Nov 16, 2017 |
| 8-K |
Current report
Other events
|
Nov 21, 2017 | Nov 21, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2017 | Nov 1, 2017 |
| 8-K |
Current report
Officer or director change
|
Sep 21, 2017 | Sep 15, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 1, 2017 | Aug 1, 2017 |
| 8-K |
Current report
Officer or director change
|
May 24, 2017 | May 23, 2017 |
| 8-K |
Current report
Shareholder vote results
|
May 10, 2017 | May 9, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2017 | May 3, 2017 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Feb 21, 2017 | Feb 16, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 1, 2017 | Feb 1, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 3, 2017 | Jan 3, 2017 |
| 8-K | Current report | Dec 13, 2016 | Nov 29, 2016 |
| 8-K |
Current report
Other events
|
Nov 23, 2016 | Nov 22, 2016 |
| 8-K |
Current report
Other events
|
Nov 21, 2016 | Nov 21, 2016 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Nov 21, 2016 | Nov 17, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2016 | Nov 2, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2016 | Aug 2, 2016 |
| 8-K/A | Amended current report | Jul 21, 2016 | Jun 24, 2016 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Impairment
|
Jun 28, 2016 | Jun 24, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2016 | May 3, 2016 |
| 8-K/A |
Amended current report
Officer or director change
|
Apr 29, 2016 | Feb 10, 2016 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Apr 29, 2016 | Apr 26, 2016 |
| 8-K |
Current report
Shareholder vote results
|
Apr 27, 2016 | Apr 26, 2016 |
| 8-K |
Current report
Other events
|
Apr 5, 2016 | Apr 4, 2016 |
| 8-K |
Current report
Officer or director change
|
Mar 8, 2016 | Mar 2, 2016 |
| 8-K |
Current report
Officer or director change
|
Feb 18, 2016 | Feb 11, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 4, 2016 | Feb 3, 2016 |
| 8-K |
Current report
Other events
|
Nov 17, 2015 | Nov 16, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2015 | Nov 2, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2015 | Aug 3, 2015 |
| 8-K |
Current report
Officer or director change
|
Jul 2, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Other events
|
Jun 24, 2015 | Jun 12, 2015 |
| 8-K |
Current report
Officer or director change
|
Jun 8, 2015 | Jun 3, 2015 |
| 8-K |
Current report
Other events
|
Jun 3, 2015 | Jun 1, 2015 |
| 8-K/A |
Amended current report
Results of operations, Regulation FD disclosure
|
May 7, 2015 | May 4, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 5, 2015 | May 4, 2015 |
| 8-K |
Current report
Shareholder vote results
|
Apr 30, 2015 | Apr 28, 2015 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Apr 7, 2015 | Apr 2, 2015 |
| 8-K/A |
Amended current report
Change in control
|
Feb 18, 2015 | Jan 4, 2015 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 18, 2015 | Jan 20, 2015 |
| 8-K |
Current report
Officer or director change
|
Feb 18, 2015 | Feb 11, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 3, 2015 | Feb 2, 2015 |
| 8-K |
Current report
Officer or director change
|
Jan 23, 2015 | Jan 20, 2015 |
| 8-K |
Current report
Other events
|
Jan 9, 2015 | Jan 9, 2015 |
| 8-K |
Current report
Officer or director change
|
Jan 8, 2015 | Jan 4, 2015 |
| 8-K | Current report | Nov 24, 2014 | Nov 19, 2014 |
| 8-K |
Current report
Other events
|
Nov 24, 2014 | Nov 24, 2014 |
| 8-K |
Current report
Other events
|
Nov 13, 2014 | Nov 13, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2014 | Nov 3, 2014 |
| 8-K | Current report | Sep 23, 2014 | Sep 18, 2014 |
| 8-K |
Current report
Other events
|
Sep 15, 2014 | Sep 15, 2014 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 19, 2014 | Aug 14, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 5, 2014 | Aug 4, 2014 |
| 8-K |
Current report
Material agreement
|
Jul 21, 2014 | Jul 17, 2014 |
| 8-K |
Current report
Other events
|
May 19, 2014 | May 19, 2014 |
| 8-K |
Current report
Material agreement, Officer or director change, Bylaw or fiscal year change
|
May 15, 2014 | May 15, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2014 | Apr 30, 2014 |
| 8-K |
Current report
Shareholder vote results
|
Apr 24, 2014 | Apr 22, 2014 |
| 8-K | Current report | Apr 14, 2014 | Apr 8, 2014 |
| 8-K |
Current report
Other events
|
Mar 13, 2014 | Mar 6, 2014 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 19, 2014 | Dec 3, 2013 |
| 8-K |
Current report
Officer or director change
|
Feb 19, 2014 | Feb 12, 2014 |
| 8-K |
Current report
Material agreement
|
Feb 13, 2014 | Feb 10, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 4, 2014 | Feb 3, 2014 |
| 8-K |
Current report
Officer or director change
|
Jan 23, 2014 | Jan 21, 2014 |
| 8-K |
Current report
Other events
|
Dec 19, 2013 | Dec 18, 2013 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2013 | Dec 3, 2013 |
| 8-K |
Current report
Officer or director change
|
Nov 20, 2013 | Nov 15, 2013 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2013 | Oct 31, 2013 |
| 8-K | Current report | Oct 15, 2013 | Sep 5, 2013 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 1, 2013 | Jul 31, 2013 |
| 8-K |
Current report
Officer or director change
|
Jul 26, 2013 | Jul 24, 2013 |
| 8-K |
Current report
Other events
|
May 20, 2013 | May 20, 2013 |
| 8-K | Current report | May 6, 2013 | May 1, 2013 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2013 | Apr 30, 2013 |
| 8-K |
Current report
Shareholder vote results
|
Apr 25, 2013 | Apr 23, 2013 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Other events
|
Mar 7, 2013 | Mar 4, 2013 |
| 8-K |
Current report
Officer or director change
|
Feb 11, 2013 | Feb 6, 2013 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 5, 2013 | Feb 4, 2013 |
| 8-K |
Current report
Officer or director change
|
Nov 20, 2012 | Nov 14, 2012 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 20, 2012 | Aug 16, 2012 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2012 | Oct 31, 2012 |
| 8-K |
Current report
Officer or director change
|
Oct 15, 2012 | Oct 2, 2012 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Aug 21, 2012 | Aug 16, 2012 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 2, 2012 | Aug 1, 2012 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2012 | Apr 30, 2012 |
| 8-K |
Current report
Shareholder vote results
|
Apr 27, 2012 | Apr 24, 2012 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 18, 2012 | Apr 17, 2012 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2012 | Mar 1, 2012 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Natural Gas Distribution (SIC 4924)
- Listed as
- MDU (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Bismarck, ND
- SEC filer status
- Large accelerated filer
- SEC CIK
- 67716
- Former names
- MDU RESOURCES GROUP INC (until Nov 5, 2026)
Other Natural Gas Distribution companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.