| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
12 Dec 2025 |
11 Dec 2025 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
FORM 8-K |
05 Dec 2025 |
03 Dec 2025 |
001-03480 |
| 424B5 |
Open Document
| Data
|
Open Filing |
424B5 |
05 Dec 2025 |
|
333-289348 |
| 424B5 |
Open Document
|
Open Filing |
424B5 |
03 Dec 2025 |
|
333-289348 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
20 Nov 2025 |
20 Nov 2025 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Nov 2025 |
13 Nov 2025 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q |
10 Nov 2025 |
30 Sep 2025 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K EARNINGS RELEASE |
06 Nov 2025 |
06 Nov 2025 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Oct 2025 |
30 Sep 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Oct 2025 |
30 Sep 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
09 Sep 2025 |
08 Sep 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Aug 2025 |
19 Aug 2025 |
|
| 3 |
Open Document
|
Open Filing |
|
14 Aug 2025 |
12 Aug 2025 |
|
| 3 |
Open Document
|
Open Filing |
|
14 Aug 2025 |
12 Aug 2025 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
13 Aug 2025 |
12 Aug 2025 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
FORM 8-K |
07 Aug 2025 |
07 Aug 2025 |
001-03480 |
| 424B5 |
Open Document
| Data
|
Open Filing |
424B5 |
07 Aug 2025 |
|
333-289348 |
| S-3ASR |
Open Document
| Data
|
Open Filing |
S-3ASR |
07 Aug 2025 |
|
333-289348 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q |
07 Aug 2025 |
30 Jun 2025 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K |
07 Aug 2025 |
07 Aug 2025 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
16 Jul 2025 |
15 May 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jul 2025 |
30 Jun 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jul 2025 |
30 Jun 2025 |
|
| 11-K/A |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 11-K/A |
23 Jun 2025 |
31 Dec 2024 |
001-03480 |
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 11-K |
18 Jun 2025 |
31 Dec 2024 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SD |
30 May 2025 |
|
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
19 May 2025 |
13 May 2025 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
15 May 2025 |
13 May 2025 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q |
08 May 2025 |
31 Mar 2025 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K |
08 May 2025 |
08 May 2025 |
001-03480 |
| ARS |
Open Document
|
Open Filing |
ARS |
03 Apr 2025 |
27 Mar 2025 |
001-03480 |
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
03 Apr 2025 |
|
001-03480 |
| DEF 14A |
Open Document
| Data
|
Open Filing |
DEF 14A |
03 Apr 2025 |
13 May 2025 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2025 |
31 Mar 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2025 |
31 Mar 2025 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-K |
20 Feb 2025 |
31 Dec 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Feb 2025 |
12 Feb 2025 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
14 Feb 2025 |
14 Feb 2025 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
10 Feb 2025 |
10 Feb 2025 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
06 Feb 2025 |
06 Feb 2025 |
001-03480 |
| SCHEDULE 13G/A |
Open Document
|
Open Filing |
|
30 Jan 2025 |
|
005-35797 |
| 3 |
Open Document
|
Open Filing |
|
14 Jan 2025 |
13 Jan 2025 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
21 Nov 2024 |
21 Nov 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
19 Nov 2024 |
15 Nov 2024 |
|
| 3 |
Open Document
|
Open Filing |
|
15 Nov 2024 |
15 Nov 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
14 Nov 2024 |
14 Nov 2024 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
07 Nov 2024 |
|
005-35797 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 09-30-2024 |
07 Nov 2024 |
30 Sep 2024 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
07 Nov 2024 |
07 Nov 2024 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
06 Nov 2024 |
31 Oct 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Nov 2024 |
31 Oct 2024 |
001-42276 |
| SC 13D/A |
Open Document
|
Open Filing |
|
01 Nov 2024 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
01 Nov 2024 |
31 Oct 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
31 Oct 2024 |
31 Oct 2024 |
|
| 3 |
Open Document
|
Open Filing |
|
17 Oct 2024 |
17 Oct 2024 |
001-42276 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
17 Oct 2024 |
17 Oct 2024 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
09 Oct 2024 |
07 Oct 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
02 Oct 2024 |
01 Oct 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
30 Sep 2024 |
30 Sep 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
03 Sep 2024 |
03 Sep 2024 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
21 Aug 2024 |
15 Aug 2024 |
|
| 3 |
Open Document
|
Open Filing |
|
21 Aug 2024 |
15 Aug 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
15 Aug 2024 |
15 Aug 2024 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q |
08 Aug 2024 |
30 Jun 2024 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
08 Aug 2024 |
08 Aug 2024 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
18 Jul 2024 |
18 Jul 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
28 Jun 2024 |
28 Jun 2024 |
|
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 11-K |
26 Jun 2024 |
31 Dec 2023 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SD |
22 May 2024 |
|
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
20 May 2024 |
14 May 2024 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
16 May 2024 |
14 May 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
08 May 2024 |
07 May 2024 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 03-31-2024 |
02 May 2024 |
31 Mar 2024 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
02 May 2024 |
02 May 2024 |
001-03480 |
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
29 Apr 2024 |
|
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2024 |
29 Mar 2024 |
|
| ARS |
Open Document
|
Open Filing |
MDUR 2023 ANNUAL REPORT |
29 Mar 2024 |
31 Dec 2023 |
001-03480 |
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
29 Mar 2024 |
|
001-03480 |
| DEF 14A |
Open Document
| Data
|
Open Filing |
DEF 14A |
29 Mar 2024 |
14 May 2024 |
001-03480 |
| SC 13D/A |
Open Document
|
Open Filing |
|
18 Mar 2024 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
18 Mar 2024 |
14 Mar 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
13 Mar 2024 |
12 Mar 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
13 Mar 2024 |
13 Mar 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
26 Feb 2024 |
22 Feb 2024 |
|
| S-8 |
Open Document
|
Open Filing |
FORM S-8 |
23 Feb 2024 |
|
333-277317 |
| 10-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES 2023 FORM 10-K |
22 Feb 2024 |
31 Dec 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
21 Feb 2024 |
15 Feb 2024 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
15 Feb 2024 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2024 |
05 Jan 2024 |
|
| SC 13G/A |
Open Document
|
Open Filing |
SCHEDULE 13G/A |
13 Feb 2024 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
08 Feb 2024 |
08 Feb 2024 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
24 Jan 2024 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
23 Jan 2024 |
|
005-35797 |
| 3 |
Open Document
|
Open Filing |
|
09 Jan 2024 |
06 Jan 2024 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
21 Nov 2023 |
21 Nov 2023 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
15 Nov 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
16 Nov 2023 |
|
| 3 |
Open Document
|
Open Filing |
|
17 Nov 2023 |
16 Nov 2023 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
17 Nov 2023 |
16 Nov 2023 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
13 Nov 2023 |
10 Nov 2023 |
001-41642 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 09-30-2023 |
02 Nov 2023 |
30 Sep 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
02 Nov 2023 |
01 Nov 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
02 Nov 2023 |
02 Nov 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
17 Aug 2023 |
17 Aug 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
10 Aug 2023 |
10 Aug 2023 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 06-30-2023 |
03 Aug 2023 |
30 Jun 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
03 Aug 2023 |
02 Aug 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Aug 2023 |
03 Aug 2023 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
12 Jul 2023 |
11 Jul 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
12 Jul 2023 |
11 Jul 2023 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
10 Jul 2023 |
10 Jul 2023 |
001-03480 |
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 11-K |
21 Jun 2023 |
31 Dec 2022 |
001-03480 |
| 8-K/A |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
07 Jun 2023 |
30 May 2023 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
02 Jun 2023 |
31 May 2023 |
001-41642 |
| 3 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
01 Jun 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 3 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
01 Jun 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jun 2023 |
31 May 2023 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
FORM 8-K |
01 Jun 2023 |
30 May 2023 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SD |
24 May 2023 |
|
001-03480 |
| 3 |
Open Document
|
Open Filing |
FORM 3 |
12 May 2023 |
09 May 2023 |
|
| SC 13D/A |
Open Document
|
Open Filing |
|
12 May 2023 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
FORM 8-K |
12 May 2023 |
10 May 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
11 May 2023 |
09 May 2023 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
10 May 2023 |
10 May 2023 |
001-41642 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 03-31-2023 |
04 May 2023 |
31 Mar 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
04 May 2023 |
03 May 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 May 2023 |
04 May 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
04 May 2023 |
03 May 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
25 Apr 2023 |
25 Apr 2023 |
001-03480 |
| SC 13D/A |
Open Document
|
Open Filing |
SC 13D/A |
24 Apr 2023 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
11 Apr 2023 |
11 Apr 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
10 Apr 2023 |
10 Apr 2023 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
10 Apr 2023 |
07 Apr 2023 |
001-03480 |
| ARS |
Open Document
|
Open Filing |
MDUR 2022 ANNUAL REPORT |
24 Mar 2023 |
31 Dec 2022 |
001-03480 |
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
24 Mar 2023 |
|
001-03480 |
| DEF 14A |
Open Document
| Data
|
Open Filing |
DEF 14A |
24 Mar 2023 |
|
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
03 Mar 2023 |
01 Mar 2023 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES 2022 FORM 10-K |
24 Feb 2023 |
31 Dec 2022 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
21 Feb 2023 |
16 Feb 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
21 Feb 2023 |
16 Feb 2023 |
|
| 4 |
Open Document
|
Open Filing |
|
21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 4 |
Open Document
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Open Filing |
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21 Feb 2023 |
16 Feb 2023 |
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| 8-K |
Open Document
| Data
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Open Filing |
8-K |
17 Feb 2023 |
16 Feb 2023 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
16 Feb 2023 |
16 Feb 2023 |
001-03480 |
| SC 13G/A |
Open Document
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Open Filing |
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10 Feb 2023 |
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005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
SCHEDULE 13G/A |
09 Feb 2023 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
09 Feb 2023 |
09 Feb 2023 |
001-03480 |
| SC 13D/A |
Open Document
|
Open Filing |
|
24 Jan 2023 |
|
005-35797 |
| 8-K |
Open Document
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Open Filing |
8-K |
24 Jan 2023 |
24 Jan 2023 |
001-03480 |
| SC 13G |
Open Document
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Open Filing |
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24 Jan 2023 |
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005-35797 |
| 4 |
Open Document
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Open Filing |
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30 Dec 2022 |
30 Dec 2022 |
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| 8-K |
Open Document
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Open Filing |
8-K |
15 Dec 2022 |
14 Dec 2022 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
22 Nov 2022 |
22 Nov 2022 |
001-03480 |
| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 4 |
Open Document
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Open Filing |
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22 Nov 2022 |
21 Nov 2022 |
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| 3 |
Open Document
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Open Filing |
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21 Nov 2022 |
17 Nov 2022 |
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| 8-K |
Open Document
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Open Filing |
8-K |
18 Nov 2022 |
17 Nov 2022 |
001-03480 |
| 8-K |
Open Document
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8-K |
17 Nov 2022 |
17 Nov 2022 |
001-03480 |
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Open Document
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Open Filing |
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03 Nov 2022 |
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005-35797 |
| 10-Q |
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Open Filing |
MDU RESOURCES FORM 10-Q 09-30-2022 |
03 Nov 2022 |
30 Sep 2022 |
001-03480 |
| 8-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Nov 2022 |
03 Nov 2022 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
30 Sep 2022 |
30 Sep 2022 |
|
| 4 |
Open Document
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Open Filing |
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25 Aug 2022 |
24 Aug 2022 |
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| SC 13D |
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Open Filing |
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08 Aug 2022 |
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005-35797 |
| 10-Q |
Open Document
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Open Filing |
MDU RESOURCES FORM 10-Q 06-30-2022 |
05 Aug 2022 |
30 Jun 2022 |
001-03480 |
| 8-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Aug 2022 |
04 Aug 2022 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Aug 2022 |
04 Aug 2022 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
30 Jun 2022 |
30 Jun 2022 |
|
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 11-K |
27 Jun 2022 |
31 Dec 2021 |
001-03480 |
| UPLOAD |
Open Document
|
Open Filing |
|
23 Jun 2022 |
|
|
| SD |
Open Document
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Open Filing |
SD |
25 May 2022 |
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001-03480 |
| CORRESP |
Open Document
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Open Filing |
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16 May 2022 |
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| 8-K |
Open Document
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Open Filing |
8-K |
12 May 2022 |
10 May 2022 |
001-03480 |
| 10-Q |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 03-31-2022 |
05 May 2022 |
31 Mar 2022 |
001-03480 |
| 8-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 May 2022 |
04 May 2022 |
001-03480 |
| CORRESP |
Open Document
|
Open Filing |
|
26 Apr 2022 |
|
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Open Document
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Open Filing |
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14 Apr 2022 |
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| 4 |
Open Document
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Open Filing |
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31 Mar 2022 |
31 Mar 2022 |
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Open Document
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Open Filing |
DEFA14A |
25 Mar 2022 |
|
001-03480 |
| DEF 14A |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. 2022 PROXY STATEMENT |
25 Mar 2022 |
10 May 2022 |
001-03480 |
| 4 |
Open Document
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Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
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Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
28 Feb 2022 |
11 Feb 2021 |
|
| 10-K |
Open Document
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Open Filing |
MDU RESOURCES 2021 FORM 10-K |
23 Feb 2022 |
31 Dec 2021 |
001-03480 |
| 4 |
Open Document
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Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| 4 |
Open Document
|
Open Filing |
|
22 Feb 2022 |
17 Feb 2022 |
|
| SC 13G/A |
Open Document
|
Open Filing |
|
11 Feb 2022 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
09 Feb 2022 |
09 Feb 2022 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
SCHEDULE 13G/A |
09 Feb 2022 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
01 Feb 2022 |
|
005-35797 |
| 5 |
Open Document
|
Open Filing |
|
13 Jan 2022 |
31 Dec 2021 |
|
| 8-K |
Open Document
| Data
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Open Filing |
8-K |
10 Jan 2022 |
06 Jan 2022 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
03 Jan 2022 |
31 Dec 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
03 Jan 2022 |
31 Dec 2021 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
23 Nov 2021 |
23 Nov 2021 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
17 Nov 2021 |
16 Nov 2021 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 09-30-2021 |
04 Nov 2021 |
30 Sep 2021 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Nov 2021 |
03 Nov 2021 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Oct 2021 |
30 Sep 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
30 Sep 2021 |
30 Sep 2021 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
16 Aug 2021 |
10 Aug 2021 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 6-30-2021 |
05 Aug 2021 |
30 Jun 2021 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Aug 2021 |
04 Aug 2021 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Jul 2021 |
30 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
30 Jun 2021 |
30 Jun 2021 |
|
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 11-K |
22 Jun 2021 |
31 Dec 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
15 Jun 2021 |
14 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
14 Jun 2021 |
11 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
11 Jun 2021 |
09 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
09 Jun 2021 |
08 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
09 Jun 2021 |
08 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
08 Jun 2021 |
07 Jun 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
07 Jun 2021 |
04 Jun 2021 |
|
| SD |
Open Document
|
Open Filing |
SD |
27 May 2021 |
|
001-03480 |
| 3 |
Open Document
|
Open Filing |
|
17 May 2021 |
11 May 2021 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
12 May 2021 |
11 May 2021 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2021 |
06 May 2021 |
31 Mar 2021 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
06 May 2021 |
05 May 2021 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2021 |
31 Mar 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2021 |
31 Mar 2021 |
|
| DEFA14A |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. 2021 PROXY NOTICE |
26 Mar 2021 |
|
001-03480 |
| DEF 14A |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. 2021 PROXY STATEMENT |
26 Mar 2021 |
11 May 2021 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
12 Mar 2021 |
09 Mar 2021 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
24 Feb 2021 |
23 Feb 2021 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
10-K |
19 Feb 2021 |
31 Dec 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| 4 |
Open Document
|
Open Filing |
|
16 Feb 2021 |
11 Feb 2021 |
|
| SC 13G/A |
Open Document
|
Open Filing |
SCHEDULE 13G/A |
10 Feb 2021 |
|
005-35797 |
| SC 13G |
Open Document
|
Open Filing |
|
09 Feb 2021 |
|
005-35797 |
| 3 |
Open Document
|
Open Filing |
|
08 Feb 2021 |
06 Feb 2021 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Feb 2021 |
03 Feb 2021 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
29 Jan 2021 |
|
005-35797 |
| 4 |
Open Document
|
Open Filing |
|
31 Dec 2020 |
31 Dec 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
31 Dec 2020 |
31 Dec 2020 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
18 Dec 2020 |
15 Dec 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K EARNINGS GUIDANCE |
14 Dec 2020 |
14 Dec 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
19 Nov 2020 |
19 Nov 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Nov 2020 |
17 Nov 2020 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
12 Nov 2020 |
12 Nov 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
12 Nov 2020 |
11 Nov 2020 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 9-30-2020 |
05 Nov 2020 |
30 Sep 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Nov 2020 |
04 Nov 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
08 Oct 2020 |
16 Sep 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
02 Oct 2020 |
30 Sep 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
30 Sep 2020 |
30 Sep 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
21 Aug 2020 |
20 Aug 2020 |
|
| S-3ASR |
Open Document
|
Open Filing |
S-3ASR |
14 Aug 2020 |
|
333-246323 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 06-30-2020 |
06 Aug 2020 |
30 Jun 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Aug 2020 |
04 Aug 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Jul 2020 |
30 Jun 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Jul 2020 |
30 Jun 2020 |
|
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 11-K |
12 Jun 2020 |
31 Dec 2019 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
26 May 2020 |
21 May 2020 |
|
| SD |
Open Document
|
Open Filing |
SD |
26 May 2020 |
|
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
18 May 2020 |
18 May 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 May 2020 |
12 May 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
15 May 2020 |
14 May 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
14 May 2020 |
14 May 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
14 May 2020 |
13 May 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
14 May 2020 |
13 May 2020 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
13 May 2020 |
12 May 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
13 May 2020 |
12 May 2020 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2020 |
08 May 2020 |
31 Mar 2020 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
07 May 2020 |
07 May 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2020 |
31 Mar 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
01 Apr 2020 |
31 Mar 2020 |
|
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
27 Mar 2020 |
|
001-03480 |
| DEF 14A |
Open Document
|
Open Filing |
DEF 14A |
27 Mar 2020 |
12 May 2020 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
10 Mar 2020 |
09 Mar 2020 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
10-K |
21 Feb 2020 |
31 Dec 2019 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| 4 |
Open Document
|
Open Filing |
|
18 Feb 2020 |
13 Feb 2020 |
|
| SC 13G |
Open Document
|
Open Filing |
|
14 Feb 2020 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
SCHEDULE 13G/A |
12 Feb 2020 |
|
005-35797 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Feb 2020 |
04 Feb 2020 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
04 Feb 2020 |
|
005-35797 |
| 4 |
Open Document
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Open Filing |
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31 Dec 2019 |
31 Dec 2019 |
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| 8-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 8-K EARNINGS GUIDANCE |
09 Dec 2019 |
09 Dec 2019 |
001-03480 |
| 4 |
Open Document
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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| 4 |
Open Document
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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20 Nov 2019 |
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20 Nov 2019 |
19 Nov 2019 |
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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Open Document
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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| 4 |
Open Document
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
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| 4 |
Open Document
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Open Filing |
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20 Nov 2019 |
19 Nov 2019 |
|
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
18 Nov 2019 |
18 Nov 2019 |
001-03480 |
| S-8 |
Open Document
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Open Filing |
S-8 |
18 Nov 2019 |
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333-234760 |
| 10-Q |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 9-30-2019 |
01 Nov 2019 |
30 Sep 2019 |
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
30 Oct 2019 |
29 Oct 2019 |
001-03480 |
| 8-K |
Open Document
| Data
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Open Filing |
8-K |
04 Oct 2019 |
01 Oct 2019 |
001-03480 |
| 4 |
Open Document
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Open Filing |
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01 Oct 2019 |
30 Sep 2019 |
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| 10-Q |
Open Document
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Open Filing |
MDU RESOURCES FORM 10-Q 6-30-2019 |
02 Aug 2019 |
30 Jun 2019 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
30 Jul 2019 |
30 Jul 2019 |
001-03480 |
| 4 |
Open Document
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Open Filing |
|
01 Jul 2019 |
28 Jun 2019 |
|
| 11-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 11-K |
14 Jun 2019 |
31 Dec 2018 |
001-03480 |
| SC 13G/A |
Open Document
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Open Filing |
|
07 Jun 2019 |
|
005-35797 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
31 May 2019 |
30 May 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
31 May 2019 |
30 May 2019 |
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| SD |
Open Document
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Open Filing |
SD |
30 May 2019 |
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001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 May 2019 |
17 May 2019 |
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| 3 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
08 May 2019 |
07 May 2019 |
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Open Document
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Open Filing |
8-K |
08 May 2019 |
07 May 2019 |
001-03480 |
| 10-Q |
Open Document
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Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2019 |
03 May 2019 |
31 Mar 2019 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
30 Apr 2019 |
30 Apr 2019 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
01 Apr 2019 |
29 Mar 2019 |
|
| DEFA14A |
Open Document
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Open Filing |
DEFA14A |
22 Mar 2019 |
|
001-03480 |
| DEF 14A |
Open Document
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Open Filing |
DEF 14A |
22 Mar 2019 |
07 May 2019 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
14 Mar 2019 |
14 Mar 2019 |
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| PRE 14A |
Open Document
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Open Filing |
PRE 14A |
08 Mar 2019 |
07 May 2019 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
22 Feb 2019 |
22 Feb 2019 |
001-03480 |
| 424B5 |
Open Document
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Open Filing |
424B5 |
22 Feb 2019 |
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333-220026 |
| 10-K |
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| Data
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Open Filing |
MDU RESOURCES 2018 FORM 10-K |
22 Feb 2019 |
31 Dec 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2019 |
19 Feb 2019 |
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Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
19 Feb 2019 |
19 Feb 2019 |
001-03480 |
| 4 |
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Feb 2019 |
14 Feb 2019 |
|
| 8-K |
Open Document
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Open Filing |
8-K |
15 Feb 2019 |
14 Feb 2019 |
001-03480 |
| SC 13G |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. |
14 Feb 2019 |
|
005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
SC 13G/A |
13 Feb 2019 |
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005-35797 |
| SC 13G/A |
Open Document
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11 Feb 2019 |
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005-35797 |
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Open Document
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06 Feb 2019 |
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005-35797 |
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
06 Feb 2019 |
05 Feb 2019 |
001-03480 |
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Open Document
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15-12B |
14 Jan 2019 |
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001-03480 |
| 5 |
Open Document
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09 Jan 2019 |
31 Dec 2018 |
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02 Jan 2019 |
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001-03480 |
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S-8 POS |
02 Jan 2019 |
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333-212635 |
| S-8 POS |
Open Document
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Open Filing |
S-8 POS |
02 Jan 2019 |
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333-114488 |
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Open Document
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S-8 POS |
02 Jan 2019 |
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333-27877 |
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POSASR |
02 Jan 2019 |
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333-220026 |
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8-K12B |
02 Jan 2019 |
31 Dec 2018 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
02 Jan 2019 |
31 Dec 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
31 Dec 2018 |
31 Dec 2018 |
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Open Filing |
MDU RESOURCES FORM 8-K |
18 Dec 2018 |
18 Dec 2018 |
001-03480 |
| 4 |
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Nov 2018 |
20 Nov 2018 |
|
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
21 Nov 2018 |
20 Nov 2018 |
001-03480 |
| 3 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Nov 2018 |
15 Nov 2018 |
|
| 8-K |
Open Document
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Open Filing |
8-K |
15 Nov 2018 |
15 Nov 2018 |
001-03480 |
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Open Document
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Open Filing |
MDU RESOURCES FORM 10-Q 09-30-2018 |
02 Nov 2018 |
30 Sep 2018 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
01 Nov 2018 |
31 Oct 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
28 Sep 2018 |
28 Sep 2018 |
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| 3 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Aug 2018 |
16 Aug 2018 |
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| 8-K |
Open Document
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Open Filing |
8-K |
16 Aug 2018 |
16 Aug 2018 |
001-03480 |
| 10-Q |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 06-30-2018 |
03 Aug 2018 |
30 Jun 2018 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
31 Jul 2018 |
31 Jul 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
29 Jun 2018 |
29 Jun 2018 |
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| 11-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 11-K |
15 Jun 2018 |
31 Dec 2017 |
001-03480 |
| SD |
Open Document
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Open Filing |
FORM SD |
31 May 2018 |
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001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
09 May 2018 |
08 May 2018 |
001-03480 |
| 10-Q |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2018 |
04 May 2018 |
31 Mar 2018 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
03 May 2018 |
02 May 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
30 Mar 2018 |
30 Mar 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
30 Mar 2018 |
30 Mar 2018 |
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Open Document
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DEFA14A |
23 Mar 2018 |
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001-03480 |
| DEF 14A |
Open Document
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Open Filing |
DEF 14A |
23 Mar 2018 |
08 May 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
13 Mar 2018 |
13 Mar 2018 |
|
| 8-K |
Open Document
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Open Filing |
8-K |
01 Mar 2018 |
01 Mar 2018 |
001-03480 |
| 10-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES 2017 FORM 10-K |
23 Feb 2018 |
31 Dec 2017 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K - COMPENSATION |
21 Feb 2018 |
14 Feb 2018 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
20 Feb 2018 |
16 Feb 2018 |
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| 4 |
Open Document
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Open Filing |
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20 Feb 2018 |
16 Feb 2018 |
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Open Document
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Open Filing |
MCDONALD'S CORPORATION |
14 Feb 2018 |
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005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
SC 13G/A |
12 Feb 2018 |
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005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
|
09 Feb 2018 |
|
005-35797 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
07 Feb 2018 |
06 Feb 2018 |
001-03480 |
| SC 13G/A |
Open Document
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Open Filing |
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25 Jan 2018 |
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005-35797 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
23 Jan 2018 |
31 Dec 2017 |
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Open Document
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Open Filing |
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19 Jan 2018 |
31 Dec 2017 |
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Open Document
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Open Filing |
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18 Jan 2018 |
31 Dec 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
03 Jan 2018 |
29 Dec 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
03 Jan 2018 |
29 Dec 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
02 Jan 2018 |
31 Dec 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
07 Dec 2017 |
06 Dec 2017 |
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Open Document
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Open Filing |
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22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2017 |
21 Nov 2017 |
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Open Document
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Open Filing |
8-K |
21 Nov 2017 |
16 Nov 2017 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
21 Nov 2017 |
21 Nov 2017 |
001-03480 |
| 10-Q |
Open Document
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Open Filing |
MDU RESOURCES FORM 10-Q 9-30-2017 |
03 Nov 2017 |
30 Sep 2017 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
01 Nov 2017 |
01 Nov 2017 |
001-03480 |
| 3 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
19 Oct 2017 |
16 Oct 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
02 Oct 2017 |
30 Sep 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
02 Oct 2017 |
30 Sep 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
02 Oct 2017 |
30 Sep 2017 |
|
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Open Document
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Open Filing |
8-K |
21 Sep 2017 |
15 Sep 2017 |
001-03480 |
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Open Document
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Open Filing |
S-3ASR |
18 Aug 2017 |
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333-220026 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
14 Aug 2017 |
11 Aug 2017 |
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Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 06-30-2017 |
04 Aug 2017 |
30 Jun 2017 |
001-03480 |
| 8-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 8-K |
01 Aug 2017 |
01 Aug 2017 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
30 Jun 2017 |
30 Jun 2017 |
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
30 Jun 2017 |
30 Jun 2017 |
|
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Open Document
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Open Filing |
MDU RESOURCES FORM 11-K |
16 Jun 2017 |
31 Dec 2016 |
001-03480 |
| SD |
Open Document
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Open Filing |
SD |
25 May 2017 |
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001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
24 May 2017 |
23 May 2017 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
8-K |
10 May 2017 |
09 May 2017 |
001-03480 |
| 10-Q |
Open Document
| Data
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Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2017 |
08 May 2017 |
31 Mar 2017 |
001-03480 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
03 May 2017 |
03 May 2017 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
31 Mar 2017 |
31 Mar 2017 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
31 Mar 2017 |
31 Mar 2017 |
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| DEFA14A |
Open Document
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Open Filing |
DEFA14A |
24 Mar 2017 |
|
001-03480 |
| DEF 14A |
Open Document
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Open Filing |
DEF 14A |
24 Mar 2017 |
24 Mar 2017 |
001-03480 |
| PRE 14A |
Open Document
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Open Filing |
PRE 14A |
14 Mar 2017 |
14 Mar 2017 |
001-03480 |
| 10-K |
Open Document
| Data
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Open Filing |
MDU RESOURCES 2016 FORM 10-K |
24 Feb 2017 |
31 Dec 2016 |
001-03480 |
| 4/A |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
21 Feb 2017 |
16 Feb 2017 |
|
| 8-K |
Open Document
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Open Filing |
8-K |
21 Feb 2017 |
16 Feb 2017 |
001-03480 |
| SC 13G/A |
Open Document
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Open Filing |
SC 13G/A |
14 Feb 2017 |
|
005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
|
10 Feb 2017 |
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005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
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10 Feb 2017 |
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005-35797 |
| SC 13G/A |
Open Document
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Open Filing |
|
10 Feb 2017 |
|
005-35797 |
| SC 13G |
Open Document
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Open Filing |
MDU RESOURCES GROUP, INC. |
09 Feb 2017 |
|
005-35797 |
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K |
01 Feb 2017 |
01 Feb 2017 |
001-03480 |
| SC 13G/A |
Open Document
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Open Filing |
|
25 Jan 2017 |
|
005-35797 |
| 3 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
05 Jan 2017 |
01 Jan 2017 |
|
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
03 Jan 2017 |
31 Dec 2016 |
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| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
03 Jan 2017 |
31 Dec 2016 |
|
| 8-K |
Open Document
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Open Filing |
8-K |
03 Jan 2017 |
03 Jan 2017 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
13 Dec 2016 |
29 Nov 2016 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
08 Dec 2016 |
07 Dec 2016 |
|
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Open Document
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Open Filing |
POSASR |
05 Dec 2016 |
|
333-200174 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
30 Nov 2016 |
29 Nov 2016 |
|
| 8-K |
Open Document
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Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
23 Nov 2016 |
22 Nov 2016 |
001-03480 |
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
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Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
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Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Nov 2016 |
21 Nov 2016 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
21 Nov 2016 |
21 Nov 2016 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
21 Nov 2016 |
17 Nov 2016 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 9-30-2016 |
07 Nov 2016 |
30 Sep 2016 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 8-K |
03 Nov 2016 |
02 Nov 2016 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Sep 2016 |
30 Sep 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Sep 2016 |
30 Sep 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
25 Aug 2016 |
24 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
24 Aug 2016 |
23 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
23 Aug 2016 |
22 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
23 Aug 2016 |
22 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
22 Aug 2016 |
19 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Aug 2016 |
18 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Aug 2016 |
17 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
17 Aug 2016 |
16 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Aug 2016 |
15 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
15 Aug 2016 |
12 Aug 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
12 Aug 2016 |
11 Aug 2016 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 6-30-2016 |
05 Aug 2016 |
30 Jun 2016 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Aug 2016 |
02 Aug 2016 |
001-03480 |
| S-8 |
Open Document
|
Open Filing |
S-8 |
22 Jul 2016 |
|
333-212635 |
| 8-K/A |
Open Document
|
Open Filing |
8-K/A |
21 Jul 2016 |
24 Jun 2016 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Jun 2016 |
30 Jun 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Jun 2016 |
30 Jun 2016 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
28 Jun 2016 |
24 Jun 2016 |
001-03480 |
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 11-K |
17 Jun 2016 |
31 Dec 2015 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SD |
26 May 2016 |
|
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q 3-31-2016 |
06 May 2016 |
31 Mar 2016 |
001-03480 |
| 3/A |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
05 May 2016 |
09 Jan 2016 |
|
| 8-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 May 2016 |
03 May 2016 |
001-03480 |
| 8-K/A |
Open Document
|
Open Filing |
8-K/A |
29 Apr 2016 |
10 Feb 2016 |
001-03480 |
| 8-K/A |
Open Document
|
Open Filing |
8-K |
29 Apr 2016 |
26 Apr 2016 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
27 Apr 2016 |
26 Apr 2016 |
001-03480 |
| DEFA14A |
Open Document
|
Open Filing |
DEFA14A |
14 Apr 2016 |
|
001-03480 |
| 8-K |
Open Document
| Data
|
Open Filing |
8-K |
05 Apr 2016 |
04 Apr 2016 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Mar 2016 |
31 Mar 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Mar 2016 |
31 Mar 2016 |
|
| DEF 14A |
Open Document
|
Open Filing |
DEF 14A |
16 Mar 2016 |
16 Mar 2016 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
08 Mar 2016 |
02 Mar 2016 |
001-03480 |
| 10-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES 2015 FORM 10-K |
19 Feb 2016 |
31 Dec 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
18 Feb 2016 |
11 Feb 2016 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
16 Feb 2016 |
11 Feb 2016 |
|
| SC 13G |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. |
16 Feb 2016 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
SCHEDULE 13G AMENDMENT NO. 1 |
12 Feb 2016 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
10 Feb 2016 |
|
005-35797 |
| 4/A |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
04 Feb 2016 |
18 Nov 2015 |
|
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. 12-31-2015 FORM 8-K |
04 Feb 2016 |
03 Feb 2016 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
26 Jan 2016 |
|
005-35797 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Jan 2016 |
18 Dec 2015 |
|
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
13 Jan 2016 |
09 Jan 2016 |
|
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
08 Jan 2016 |
01 Jan 2016 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
04 Jan 2016 |
31 Dec 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
04 Jan 2016 |
31 Dec 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
10 Dec 2015 |
09 Dec 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Nov 2015 |
18 Nov 2015 |
|
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 8-K CAP EX |
17 Nov 2015 |
16 Nov 2015 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES FORM 10-Q |
06 Nov 2015 |
30 Sep 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
03 Nov 2015 |
02 Nov 2015 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Sep 2015 |
30 Sep 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Sep 2015 |
30 Sep 2015 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES JUNE 2015 FORM 10-Q |
04 Aug 2015 |
30 Jun 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 8-K |
04 Aug 2015 |
03 Aug 2015 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
27 Jul 2015 |
20 Jul 2015 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
02 Jul 2015 |
30 Jun 2015 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Jul 2015 |
30 Jun 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Jul 2015 |
30 Jun 2015 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
24 Jun 2015 |
12 Jun 2015 |
001-03480 |
| 11-K |
Open Document
|
Open Filing |
MDU RESOURCES GROUP, INC. FORM 11-K |
12 Jun 2015 |
31 Dec 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
08 Jun 2015 |
03 Jun 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
03 Jun 2015 |
01 Jun 2015 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SPECIALIZED DISCLOSURE REPORT |
28 May 2015 |
|
001-03480 |
| 8-A12B/A |
Open Document
|
Open Filing |
8-A12B/A AMENDMENT NO. 9 |
08 May 2015 |
|
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU RESOURCES GROUP 3-31-2015 FORM 10-Q |
08 May 2015 |
31 Mar 2015 |
001-03480 |
| 8-K/A |
Open Document
|
Open Filing |
MDU RESOURCES FORM 8-K/A EARNINGS RELEASE 3.31.15 |
07 May 2015 |
04 May 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU RESOURCES FORM 8-K EARNINGS RELEASE 3.31.15 |
05 May 2015 |
04 May 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K ITEM 5.07 |
30 Apr 2015 |
28 Apr 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
CURRENT REPORT |
07 Apr 2015 |
02 Apr 2015 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Apr 2015 |
31 Mar 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Apr 2015 |
31 Mar 2015 |
|
| DEFR14A |
Open Document
|
Open Filing |
DEFR14A |
24 Mar 2015 |
|
001-03480 |
| S-8 POS |
Open Document
|
Open Filing |
S-8 POS |
19 Mar 2015 |
|
333-158572 |
| ARS |
Open Document
|
Open Filing |
AUTO-GENERATED PAPER DOCUMENT |
18 Mar 2015 |
31 Dec 2014 |
001-03480 |
| DEF 14A |
Open Document
|
Open Filing |
DEF 14A |
18 Mar 2015 |
28 Apr 2015 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
03 Mar 2015 |
01 Mar 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
27 Feb 2015 |
26 Feb 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
25 Feb 2015 |
25 Feb 2015 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
MDU RESOURCES 2014 FORM 10-K |
20 Feb 2015 |
31 Dec 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
19 Feb 2015 |
18 Feb 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2015 |
17 Feb 2015 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2015 |
17 Feb 2015 |
|
| 8-K/A |
Open Document
|
Open Filing |
8-K/A |
18 Feb 2015 |
04 Jan 2015 |
001-03480 |
| 8-K/A |
Open Document
|
Open Filing |
8-K/A |
18 Feb 2015 |
20 Jan 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
18 Feb 2015 |
11 Feb 2015 |
001-03480 |
| SC 13G |
Open Document
|
Open Filing |
MDU |
12 Feb 2015 |
|
005-35797 |
| SC 13G |
Open Document
|
Open Filing |
SC 13G |
12 Feb 2015 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
11 Feb 2015 |
|
005-35797 |
| 8-K |
Open Document
|
Open Filing |
MDU-12-31-2014 EARNINGS RELEASE |
03 Feb 2015 |
02 Feb 2015 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
|
26 Jan 2015 |
|
005-35797 |
| 8-K |
Open Document
|
Open Filing |
8-K |
23 Jan 2015 |
20 Jan 2015 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
14 Jan 2015 |
09 Jan 2015 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
09 Jan 2015 |
09 Jan 2015 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
|
08 Jan 2015 |
04 Jan 2015 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Dec 2014 |
31 Dec 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Dec 2014 |
31 Dec 2014 |
|
| 4/A |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
29 Dec 2014 |
07 May 2013 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
11 Dec 2014 |
10 Dec 2014 |
|
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Dec 2014 |
29 Nov 2014 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
24 Nov 2014 |
19 Nov 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
24 Nov 2014 |
24 Nov 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Nov 2014 |
19 Nov 2014 |
|
| S-3ASR |
Open Document
|
Open Filing |
S-3ASR |
13 Nov 2014 |
|
333-200174 |
| 8-K |
Open Document
|
Open Filing |
8-K |
13 Nov 2014 |
13 Nov 2014 |
001-03480 |
| 10-Q |
Open Document
| Data
|
Open Filing |
MDU 2014930 FORM 10-Q |
07 Nov 2014 |
30 Sep 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
04 Nov 2014 |
03 Nov 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Oct 2014 |
30 Sep 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
01 Oct 2014 |
30 Sep 2014 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
23 Sep 2014 |
18 Sep 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
15 Sep 2014 |
15 Sep 2014 |
001-03480 |
| S-8 |
Open Document
|
Open Filing |
S-8 |
26 Aug 2014 |
|
333-198364 |
| 8-A12B/A |
Open Document
|
Open Filing |
8-A12B/A |
19 Aug 2014 |
|
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
19 Aug 2014 |
14 Aug 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
15 Aug 2014 |
13 Aug 2014 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
10-Q |
08 Aug 2014 |
30 Jun 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
05 Aug 2014 |
04 Aug 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
MDU FORM 8-K ITEM 1 |
21 Jul 2014 |
17 Jul 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Jun 2014 |
30 Jun 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
30 Jun 2014 |
30 Jun 2014 |
|
| 11-K |
Open Document
|
Open Filing |
11-K |
18 Jun 2014 |
31 Dec 2013 |
001-03480 |
| SD |
Open Document
|
Open Filing |
SD |
30 May 2014 |
|
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
19 May 2014 |
19 May 2014 |
001-03480 |
| 424B2 |
Open Document
|
Open Filing |
PROSPECTUS SUPPLEMENT |
16 May 2014 |
|
333-195990 |
| S-3ASR |
Open Document
|
Open Filing |
S-3ASR |
15 May 2014 |
|
333-195990 |
| 8-K |
Open Document
|
Open Filing |
8-K |
15 May 2014 |
15 May 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
13 May 2014 |
12 May 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
13 May 2014 |
12 May 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
13 May 2014 |
12 May 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
13 May 2014 |
12 May 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
08 May 2014 |
07 May 2014 |
|
| 10-Q |
Open Document
| Data
|
Open Filing |
10-Q |
07 May 2014 |
31 Mar 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
01 May 2014 |
30 Apr 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
24 Apr 2014 |
22 Apr 2014 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
14 Apr 2014 |
08 Apr 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Mar 2014 |
31 Mar 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
31 Mar 2014 |
31 Mar 2014 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
13 Mar 2014 |
06 Mar 2014 |
001-03480 |
| ARS |
Open Document
|
Open Filing |
AUTO-GENERATED PAPER DOCUMENT |
12 Mar 2014 |
31 Dec 2013 |
001-03480 |
| DEF 14A |
Open Document
|
Open Filing |
DEFINITIVE PROXY STATEMENT |
12 Mar 2014 |
22 Apr 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
24 Feb 2014 |
21 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
24 Feb 2014 |
21 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
21 Feb 2014 |
20 Feb 2014 |
|
| 10-K |
Open Document
| Data
|
Open Filing |
10-K |
21 Feb 2014 |
31 Dec 2013 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
20 Feb 2014 |
19 Feb 2014 |
|
| 8-K/A |
Open Document
|
Open Filing |
8-K/A |
19 Feb 2014 |
03 Dec 2013 |
001-03480 |
| 8-K |
Open Document
|
Open Filing |
8-K |
19 Feb 2014 |
12 Feb 2014 |
001-03480 |
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 4 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
18 Feb 2014 |
13 Feb 2014 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
13 Feb 2014 |
10 Feb 2014 |
001-03480 |
| SC 13G/A |
Open Document
|
Open Filing |
MDU AS OF 12/31/2013 |
12 Feb 2014 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
11 Feb 2014 |
|
005-35797 |
| 8-K |
Open Document
|
Open Filing |
8-K |
04 Feb 2014 |
03 Feb 2014 |
001-03480 |
| SC 13G |
Open Document
|
Open Filing |
MDU |
03 Feb 2014 |
|
005-35797 |
| SC 13G/A |
Open Document
|
Open Filing |
|
30 Jan 2014 |
|
005-35797 |
| 5 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
24 Jan 2014 |
31 Dec 2013 |
|
| 8-K |
Open Document
|
Open Filing |
8-K |
23 Jan 2014 |
21 Jan 2014 |
001-03480 |
| 3 |
Open Document
|
Open Filing |
PRIMARY DOCUMENT |
08 Jan 2014 |
03 Jan 2014 |
|