| Filed On | Filing |
|---|---|
| 07 Aug 2025 | S-3ASR |
| 14 Aug 2020 | S-3ASR |
| 18 Aug 2017 | S-3ASR |
| 13 Nov 2014 | S-3ASR |
| 15 May 2014 | S-3ASR |
| 18 Nov 2011 | S-3ASR |
| 19 May 2011 | MDU RESOURCES GROUP, INC. FORM S-3ASR |
| 21 Nov 2008 | MDU RESOURCES GROUP, INC. FORM S-3ASR |
| 28 May 2008 | REGISTRATION STATEMENT |
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