BLACK HILLS CORP /SD/

Symbol
BKH on NYSE
Business address
7001 Mt Rushmore Rd, Po Box 1400, Rapid City, SD, 57709
State of incorporation
SD
Fiscal year end
31 December
Former names
BLACK HILLS HOLDING CORP (to 26 Dec 2000)
Get insider transactions for this issuer
BLACK HILLS CORP /SD/ has filed 3,035 SEC EDGAR filings since 22 Dec 2000

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2025 10 Nov 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Nov 2025 07 Nov 2025
425 Open Document Open Filing 425 10 Nov 2025
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2025 30 Sep 2025 001-31303
8-K Open Document | Data Open Filing 8-K 05 Nov 2025 05 Nov 2025 001-31303
3 Open Document Open Filing PRIMARY DOCUMENT 17 Oct 2025 13 Oct 2025
8-K Open Document | Data Open Filing FORM 8-K 02 Oct 2025 02 Oct 2025 001-31303
8-K Open Document | Data Open Filing FORM 8-K 29 Sep 2025 25 Sep 2025 001-31303
424B2 Open Document | Data Open Filing 424B2 26 Sep 2025 333-272739
FWP Open Document Open Filing FWP 25 Sep 2025 333-272739
424B5 Open Document Open Filing 424B5 25 Sep 2025 333-272739
8-K Open Document | Data Open Filing 8-K 15 Sep 2025 15 Sep 2025 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 21 Aug 2025 01 Aug 2025
3 Open Document Open Filing PRIMARY DOCUMENT 20 Aug 2025 21 Jul 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025
425 Open Document Open Filing 425 19 Aug 2025 001-31303
8-K Open Document | Data Open Filing FORM 8-K 19 Aug 2025 18 Aug 2025 001-31303
8-K Open Document | Data Open Filing FORM 8-K 19 Aug 2025 19 Aug 2025 001-31303
10-Q Open Document | Data Open Filing 10-Q 31 Jul 2025 30 Jun 2025 001-31303
8-K Open Document | Data Open Filing 8-K 30 Jul 2025 30 Jul 2025 001-31303
11-K Open Document Open Filing 11-K 23 Jun 2025 31 Dec 2024 001-31303
8-K Open Document | Data Open Filing FORM 8-K 08 May 2025 08 May 2025 001-31303
424B5 Open Document | Data Open Filing 424B5 08 May 2025 333-272739
10-Q Open Document | Data Open Filing 10-Q 08 May 2025 31 Mar 2025 001-31303
8-K Open Document | Data Open Filing 8-K 08 May 2025 07 May 2025 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 01 May 2025
SCHEDULE 13G/A Open Document Open Filing 30 Apr 2025 005-80081
3 Open Document Open Filing PRIMARY DOCUMENT 28 Apr 2025 23 Apr 2025
3 Open Document Open Filing PRIMARY DOCUMENT 28 Apr 2025 23 Apr 2025
8-K Open Document | Data Open Filing 8-K 25 Apr 2025 23 Apr 2025 001-31303
ARS Open Document Open Filing ARS 14 Mar 2025 31 Dec 2024 001-31303
DEF 14A Open Document | Data Open Filing DEF 14A 14 Mar 2025 12 Mar 2025 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 20 Feb 2025 18 Feb 2025
5 Open Document Open Filing PRIMARY DOCUMENT 18 Feb 2025 31 Dec 2024
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 12 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 12 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 12 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 12 Feb 2025
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2025 31 Dec 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2025 11 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2025 11 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2025 11 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2025 11 Feb 2025
10-K Open Document | Data Open Filing 10-K 12 Feb 2025 31 Dec 2024 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 07 Feb 2025
5 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 31 Dec 2024
5 Open Document Open Filing PRIMARY DOCUMENT 10 Feb 2025 31 Dec 2024
8-K Open Document | Data Open Filing 8-K 07 Feb 2025 31 Jan 2025 001-31303
8-K Open Document | Data Open Filing 8-K 05 Feb 2025 05 Feb 2025 001-31303
SCHEDULE 13G/A Open Document Open Filing 05 Feb 2025 005-80081
3 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2024 13 Nov 2024
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2024 08 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 07 Nov 2024 07 Nov 2024
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2024 30 Sep 2024 001-31303
8-K Open Document | Data Open Filing 8-K 06 Nov 2024 06 Nov 2024 001-31303
8-K Open Document | Data Open Filing 8-K 01 Nov 2024 28 Oct 2024 001-31303
8-K Open Document | Data Open Filing 8-K 12 Aug 2024 09 Aug 2024 001-31303
10-Q Open Document | Data Open Filing 10-Q 01 Aug 2024 30 Jun 2024 001-31303
8-K Open Document | Data Open Filing 8-K 31 Jul 2024 31 Jul 2024 001-31303
11-K Open Document Open Filing 11-K 20 Jun 2024 31 Dec 2023 001-31303
8-K Open Document | Data Open Filing 8-K 05 Jun 2024 31 May 2024 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jun 2024 30 May 2024
144 Open Document Open Filing 30 May 2024 001-31303
8-K Open Document | Data Open Filing FORM 8-K 16 May 2024 13 May 2024 001-31303
424B2 Open Document Open Filing 424B2 14 May 2024 333-272739
FWP Open Document Open Filing FWP 13 May 2024 333-272739
424B5 Open Document Open Filing 424B5 13 May 2024 333-272739
10-Q Open Document | Data Open Filing 10-Q 09 May 2024 31 Mar 2024 001-31303
8-K Open Document | Data Open Filing 8-K 08 May 2024 08 May 2024 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2024 30 Apr 2024
8-K Open Document | Data Open Filing 8-K 26 Apr 2024 23 Apr 2024 001-31303
8-K Open Document | Data Open Filing 8-K 25 Apr 2024 24 Apr 2024 001-31303
ARS Open Document Open Filing ARS 15 Mar 2024 31 Dec 2023 001-31303
DEF 14A Open Document | Data Open Filing DEF 14A 15 Mar 2024 15 Mar 2024 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 06 Mar 2024 05 Mar 2024
10-K Open Document | Data Open Filing 10-K 14 Feb 2024 31 Dec 2023 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 10 Jan 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 09 Feb 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 09 Feb 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 09 Feb 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 09 Feb 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 09 Feb 2024
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 13 Feb 2024 005-80081
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2024 31 Dec 2023
8-K Open Document | Data Open Filing 8-K 07 Feb 2024 07 Feb 2024 001-31303
SC 13G/A Open Document Open Filing 25 Jan 2024 005-80081
SC 13G/A Open Document Open Filing 22 Jan 2024 005-80081
4 Open Document Open Filing PRIMARY DOCUMENT 29 Dec 2023 05 Aug 2023
10-Q Open Document | Data Open Filing 10-Q 02 Nov 2023 30 Sep 2023 001-31303
8-K Open Document | Data Open Filing 8-K 01 Nov 2023 01 Nov 2023 001-31303
8-K Open Document | Data Open Filing FORM 8-K 15 Sep 2023 15 Sep 2023 001-31303
8-K Open Document | Data Open Filing FORM 8-K 11 Sep 2023 06 Sep 2023 001-31303
424B2 Open Document Open Filing 424B2 07 Sep 2023 333-272739
FWP Open Document Open Filing FWP 06 Sep 2023 333-272739
424B5 Open Document Open Filing 424B5 06 Sep 2023 333-272739
10-Q Open Document | Data Open Filing 10-Q 03 Aug 2023 30 Jun 2023 001-31303
8-K Open Document | Data Open Filing 8-K 02 Aug 2023 02 Aug 2023 001-31303
POSASR Open Document Open Filing POSASR 10 Jul 2023 333-240319
3 Open Document Open Filing PRIMARY DOCUMENT 26 Jun 2023 15 Jun 2023
3 Open Document Open Filing PRIMARY DOCUMENT 26 Jun 2023 15 Jun 2023
11-K Open Document Open Filing 11-K 22 Jun 2023 31 Dec 2022 001-31303
8-K Open Document | Data Open Filing FORM 8-K 20 Jun 2023 16 Jun 2023 001-31303
424B5 Open Document Open Filing 424B5 16 Jun 2023 333-272739
S-3ASR Open Document Open Filing S-3ASR 16 Jun 2023 333-272739
8-K Open Document | Data Open Filing 8-K 15 Jun 2023 14 Jun 2023 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 09 May 2023 08 May 2023
144 Open Document Open Filing 08 May 2023 001-31303
10-Q Open Document | Data Open Filing 10-Q 04 May 2023 31 Mar 2023 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2023 01 May 2023
8-K Open Document | Data Open Filing 8-K 03 May 2023 24 Apr 2023 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2023 30 Apr 2023
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2023 30 Apr 2023
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2023 30 Apr 2023
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2023 30 Apr 2023
4 Open Document Open Filing PRIMARY DOCUMENT 02 May 2023 30 Apr 2023
8-K Open Document | Data Open Filing 8-K 27 Apr 2023 25 Apr 2023 001-31303
3 Open Document Open Filing PRIMARY DOCUMENT 06 Apr 2023 01 Apr 2023
ARS Open Document Open Filing ARS 15 Mar 2023 31 Dec 2022 001-31303
DEF 14A Open Document | Data Open Filing DEF 14A 15 Mar 2023 001-31303
8-K Open Document | Data Open Filing 8-K 07 Mar 2023 02 Mar 2023 001-31303
424B2 Open Document Open Filing 424B2 03 Mar 2023 333-240320
FWP Open Document Open Filing FWP 02 Mar 2023 333-240320
424B5 Open Document Open Filing 424B5 02 Mar 2023 333-240320
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2023 10 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2023 10 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2023 10 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2023 10 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2023 11 Feb 2023
10-K Open Document | Data Open Filing 10-K 14 Feb 2023 31 Dec 2022 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2023 09 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2023 09 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2023 09 Feb 2023
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2023 09 Feb 2023
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 09 Feb 2023 005-80081
SC 13G/A Open Document Open Filing 09 Feb 2023 005-80081
8-K Open Document | Data Open Filing 8-K 07 Feb 2023 07 Feb 2023 001-31303
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 01 Feb 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 31 Jan 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 31 Jan 2023 31 Dec 2022
5 Open Document Open Filing PRIMARY DOCUMENT 31 Jan 2023 31 Dec 2022
SC 13G/A Open Document Open Filing 26 Jan 2023 005-80081
SC 13G/A Open Document Open Filing 20 Jan 2023 005-80081
10-Q Open Document | Data Open Filing 10-Q 03 Nov 2022 30 Sep 2022 001-31303
8-K Open Document | Data Open Filing 8-K 02 Nov 2022 02 Nov 2022 001-31303
8-K Open Document | Data Open Filing 8-K 27 Oct 2022 27 Oct 2022 001-31303
10-Q Open Document | Data Open Filing 10-Q 04 Aug 2022 30 Jun 2022 001-31303
8-K Open Document | Data Open Filing 8-K 03 Aug 2022 03 Aug 2022 001-31303
SC 13G/A Open Document Open Filing 11 Jul 2022 005-80081
4 Open Document Open Filing PRIMARY DOCUMENT 28 Jun 2022 27 Jun 2022
11-K Open Document Open Filing 11-K 23 Jun 2022 31 Dec 2021 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jun 2022 01 Mar 2022
4 Open Document Open Filing PRIMARY DOCUMENT 23 May 2022 20 May 2022
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2022 06 May 2022
S-8 Open Document Open Filing S-8 05 May 2022 333-264703
10-Q Open Document | Data Open Filing 10-Q 05 May 2022 31 Mar 2022 001-31303
8-K Open Document | Data Open Filing 8-K 04 May 2022 04 May 2022 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2022 30 Apr 2022
4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2022 30 Apr 2022
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4 Open Document Open Filing PRIMARY DOCUMENT 03 May 2022 30 Apr 2022
8-K Open Document | Data Open Filing 8-K 28 Apr 2022 26 Apr 2022 001-31303
DEF 14A Open Document Open Filing DEF 14A 17 Mar 2022 26 Apr 2022 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2022 11 Feb 2022
4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2022 11 Feb 2022
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4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2022 11 Feb 2022
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10-K Open Document | Data Open Filing 10-K 15 Feb 2022 31 Dec 2021 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2022 10 Feb 2022
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2022 10 Feb 2022
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4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2022 10 Feb 2022
4 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2022 10 Feb 2022
SC 13G/A Open Document Open Filing 10 Feb 2022 005-80081
8-K Open Document | Data Open Filing 8-K 09 Feb 2022 09 Feb 2022 001-31303
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 09 Feb 2022 005-80081
SC 13G/A Open Document Open Filing 28 Jan 2022 005-80081
5 Open Document Open Filing PRIMARY DOCUMENT 12 Jan 2022 31 Dec 2021
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5 Open Document Open Filing PRIMARY DOCUMENT 12 Jan 2022 31 Dec 2021
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4 Open Document Open Filing PRIMARY DOCUMENT 05 Jan 2022 03 Jan 2022
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2021 30 Nov 2021
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10-Q Open Document | Data Open Filing 10-Q 03 Nov 2021 30 Sep 2021 001-31303
8-K Open Document | Data Open Filing 8-K 02 Nov 2021 02 Nov 2021 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 08 Oct 2021 06 Oct 2021
8-K Open Document | Data Open Filing 8-K 17 Sep 2021 15 Sep 2021 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2021 31 Aug 2021
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2021 31 Aug 2021
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2021 31 Aug 2021
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8-K Open Document | Data Open Filing FORM 8-K 26 Aug 2021 23 Aug 2021 001-31303
424B2 Open Document Open Filing 424B2 24 Aug 2021 333-240320
FWP Open Document Open Filing FWP 23 Aug 2021 333-240320
424B5 Open Document Open Filing 424B5 23 Aug 2021 333-240320
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2021 04 Aug 2021
4 Open Document Open Filing PRIMARY DOCUMENT 04 Aug 2021 04 Aug 2021
10-Q Open Document | Data Open Filing 10-Q 04 Aug 2021 30 Jun 2021 001-31303
8-K Open Document | Data Open Filing 8-K 03 Aug 2021 03 Aug 2021 001-31303
8-K Open Document | Data Open Filing 8-K 19 Jul 2021 19 Jul 2021 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 19 Jul 2021 16 Jul 2021
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11-K Open Document Open Filing 11-K 22 Jun 2021 31 Dec 2020 001-31303
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10-Q Open Document | Data Open Filing 10-Q 05 May 2021 31 Mar 2021 001-31303
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8-K/A Open Document | Data Open Filing 8-K/A 29 Apr 2021 16 Sep 2020 001-31303
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10-K Open Document | Data Open Filing 10-K 26 Feb 2021 31 Dec 2020 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2021 10 Feb 2021
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SC 13G Open Document Open Filing 11 Feb 2021 005-80081
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 10 Feb 2021 005-80081
4 Open Document Open Filing PRIMARY DOCUMENT 09 Feb 2021 05 Feb 2021
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8-K Open Document | Data Open Filing 8-K 09 Feb 2021 09 Feb 2021 001-31303
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SC 13G/A Open Document Open Filing SEC SCHEDULE 13G 04 Feb 2021 005-80081
SC 13G/A Open Document Open Filing 26 Jan 2021 005-80081
4 Open Document Open Filing PRIMARY DOCUMENT 08 Jan 2021 06 Jan 2021
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2020 30 Nov 2020
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4 Open Document Open Filing PRIMARY DOCUMENT 05 Nov 2020 04 Nov 2020
10-Q Open Document | Data Open Filing 10-Q 03 Nov 2020 30 Sep 2020 001-31303
8-K Open Document | Data Open Filing 8-K 02 Nov 2020 02 Nov 2020 001-31303
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10-Q Open Document | Data Open Filing 10-Q 04 Aug 2020 30 Jun 2020 001-31303
424B5 Open Document Open Filing 424B5 04 Aug 2020 333-240320
8-K Open Document | Data Open Filing FORM 8-K 04 Aug 2020 04 Aug 2020 001-31303
S-3ASR Open Document Open Filing UNIVERSAL SHELF REGISTRATION STATEMENT 04 Aug 2020 333-240320
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424B2 Open Document Open Filing 424B2 16 Jun 2020 333-219705
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10-Q Open Document | Data Open Filing 10-Q 05 May 2020 31 Mar 2020 001-31303
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8-K Open Document | Data Open Filing FORM 8-K (CLOSING OF COMMON STOCK OFFERING) 27 Feb 2020 24 Feb 2020 001-31303
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8-K Open Document | Data Open Filing 8-K 06 Feb 2020 06 Feb 2020 001-31303
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SC 13G/A Open Document Open Filing 04 Feb 2020 005-80081
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10-Q Open Document | Data Open Filing 10-Q 05 Nov 2019 30 Sep 2019 001-31303
8-K Open Document | Data Open Filing 8-K 04 Nov 2019 04 Nov 2019 001-31303
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8-K Open Document | Data Open Filing FORM 8-K 04 Oct 2019 03 Oct 2019 001-31303
8-K Open Document | Data Open Filing FORM 8-K 01 Oct 2019 26 Sep 2019 001-31303
424B2 Open Document Open Filing FINAL PROSPECTUS SUPPLEMENT DATED SEPTEMBER 26, 2019 30 Sep 2019 333-219705
FWP Open Document Open Filing PRICING TERM SHEET - 3.050% NOTES DUE 2029 & 3.875% NOTES DUE 2049 26 Sep 2019 333-219705
424B5 Open Document Open Filing 424B5 26 Sep 2019 333-219705
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10-Q Open Document | Data Open Filing 10-Q 06 Aug 2019 30 Jun 2019 001-31303
8-K Open Document Open Filing 8-K 05 Aug 2019 05 Aug 2019 001-31303
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8-K Open Document Open Filing 8-K 18 Jun 2019 17 Jun 2019 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2019 31 May 2019
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2019 31 May 2019
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2019 31 May 2019
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8-K Open Document Open Filing 8-K ANNUAL MEETING 043019 03 May 2019 30 Apr 2019 001-31303
10-Q Open Document | Data Open Filing 10-Q 03 May 2019 31 Mar 2019 001-31303
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8-K Open Document Open Filing 8-K 03 May 2019 02 May 2019 001-31303
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DEF 14A Open Document Open Filing BHC PROXY 15 Mar 2019 31 Dec 2018 001-31303
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SC 13G/A Open Document Open Filing 11 Mar 2019 005-80081
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10-K Open Document | Data Open Filing 10-K 19 Feb 2019 31 Dec 2018 001-31303
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8-K Open Document Open Filing EMERY TRADING PLAN 15 Feb 2019 14 Feb 2019 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2019 11 Feb 2019
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144 Open Document Open Filing EMERY FORM 144 13 Feb 2019 001-31303
SC 13G Open Document Open Filing BLACK HILLS CORPORATION 13 Feb 2019 005-80081
SC 13G/A Open Document Open Filing 11 Feb 2019 005-80081
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8-K Open Document Open Filing 8-K 07 Feb 2019 07 Feb 2019 001-31303
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SC 13G/A Open Document Open Filing 24 Jan 2019 005-80081
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10-Q Open Document | Data Open Filing 10-Q 06 Nov 2018 30 Sep 2018 001-31303
8-K Open Document Open Filing 8-K 05 Nov 2018 05 Nov 2018 001-31303
25-NSE Open Document Open Filing 01 Nov 2018 001-31303
8-K Open Document Open Filing 8-K 01 Nov 2018 31 Oct 2018 001-31303
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8-K Open Document Open Filing 8-K 17 Aug 2018 14 Aug 2018 001-31303
424B5 Open Document Open Filing FINAL PROSPECTUS SUPPLEMENT-4.350% NOTES DUE 2033 16 Aug 2018 333-219705
FWP Open Document Open Filing FINAL TERM SHEET - 4.350% NOTES DUE 2033 15 Aug 2018 333-219705
424B5 Open Document Open Filing PRELIMINARY PROSPECTUS SUPPLEMENT-SENIOR NOTES 13 Aug 2018 333-219705
10-Q Open Document | Data Open Filing 10-Q 07 Aug 2018 30 Jun 2018 001-31303
8-K Open Document Open Filing 8-K 07 Aug 2018 06 Aug 2018 001-31303
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8-K Open Document Open Filing 8-K 31 Jul 2018 30 Jul 2018 001-31303
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11-K Open Document Open Filing 11-K 26 Jun 2018 31 Dec 2017 001-31303
11-K Open Document Open Filing 11-K 26 Jun 2018 31 Dec 2017 001-31303
8-K Open Document Open Filing MASSMAN RESIGNATION 21 Jun 2018 19 Jun 2018 001-31303
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10-Q Open Document | Data Open Filing 10-Q 04 May 2018 31 Mar 2018 001-31303
8-K Open Document Open Filing 8-K 04 May 2018 03 May 2018 001-31303
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8-K Open Document Open Filing 8K ANNUAL MEETING 2018 27 Apr 2018 24 Apr 2018 001-31303
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4/A Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2018 02 Feb 2018
4/A Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2018 02 Feb 2018
4/A Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2018 02 Feb 2018
4/A Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2018 02 Feb 2018
4/A Open Document Open Filing PRIMARY DOCUMENT 15 Mar 2018 02 Feb 2018
DEF 14A Open Document Open Filing BHC 2018 PROXY 15 Mar 2018 15 Mar 2018 001-31303
4/A Open Document Open Filing PRIMARY DOCUMENT 14 Mar 2018 02 Feb 2018
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10-K Open Document | Data Open Filing 10-K 26 Feb 2018 31 Dec 2017 001-31303
8-K Open Document Open Filing 8-K 26 Feb 2018 23 Feb 2018 001-31303
SC 13G Open Document Open Filing BLACK HILLS CORPORATION 14 Feb 2018 005-80081
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SC 13G/A Open Document Open Filing 08 Feb 2018 005-80081
SC 13G/A Open Document Open Filing 08 Feb 2018 005-80081
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8-K Open Document Open Filing BHC 8K AMENDED ARTICLES 013018 05 Feb 2018 30 Jan 2018 001-31303
8-K Open Document Open Filing 8-K 02 Feb 2018 01 Feb 2018 001-31303
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10-Q Open Document | Data Open Filing 10-Q 06 Nov 2017 30 Sep 2017 001-31303
8-K Open Document Open Filing 8-K 03 Nov 2017 02 Nov 2017 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 05 Oct 2017 04 Oct 2017
SC 13G/A Open Document Open Filing 08 Sep 2017 005-80081
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4 Open Document Open Filing PRIMARY DOCUMENT 05 Sep 2017 31 Aug 2017
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8-K Open Document Open Filing FORM 8-K (RENEWAL OF AT-THE-MARKET OFFERING PROGRAM) 04 Aug 2017 04 Aug 2017 001-31303
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT DATED AUGUST 4, 2017 (ATM EQUITY OFFERING PROGRAM) 04 Aug 2017 333-219705
S-3ASR Open Document Open Filing S-3ASR UNIVERSAL SHELF REGISTRATION STATEMENT 04 Aug 2017 333-219705
S-3ASR Open Document Open Filing S-3ASR 04 Aug 2017 333-219704
10-Q Open Document | Data Open Filing 10-Q 04 Aug 2017 30 Jun 2017 001-31303
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11-K Open Document Open Filing 11-K 29 Jun 2017 31 Dec 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2017 31 May 2017
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4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2017 03 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2017 03 May 2017
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2017 03 May 2017
S-8 Open Document Open Filing BHC SOURCEGAS 401K PLANS 050417 05 May 2017 333-217679
10-Q Open Document | Data Open Filing 10-Q 05 May 2017 31 Mar 2017 001-31303
8-K Open Document Open Filing 8-K 04 May 2017 03 May 2017 001-31303
8-K Open Document Open Filing 8-K 28 Apr 2017 28 Apr 2017 001-31303
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DEF 14A Open Document Open Filing BHC 2017 PROXY 16 Mar 2017 31 Dec 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2017 28 Feb 2017
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8-K Open Document Open Filing 8-K 02 Feb 2017 01 Feb 2017 001-31303
8-K Open Document Open Filing OFFICER CHANGE 013017 8-K 31 Jan 2017 30 Jan 2017 001-31303
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8-K Open Document Open Filing 121416 NEW DIRECTOR 15 Dec 2016 14 Dec 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2016 30 Nov 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2016 30 Nov 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2016 30 Nov 2016
8-K Open Document Open Filing 8-K CIC AGREEMENT 111516 16 Nov 2016 15 Nov 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2016 02 Nov 2016
10-Q Open Document | Data Open Filing 10-Q 04 Nov 2016 30 Sep 2016 001-31303
8-K Open Document Open Filing 8-K 03 Nov 2016 02 Nov 2016 001-31303
UPLOAD Open Document Open Filing 14 Oct 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 07 Oct 2016 05 Oct 2016
4 Open Document Open Filing PRIMARY DOCUMENT 07 Oct 2016 05 Oct 2016
4 Open Document Open Filing PRIMARY DOCUMENT 07 Oct 2016 05 Oct 2016
4 Open Document Open Filing PRIMARY DOCUMENT 07 Oct 2016 05 Oct 2016
CORRESP Open Document Open Filing 07 Oct 2016
UPLOAD Open Document Open Filing 23 Sep 2016
3 Open Document Open Filing PRIMARY DOCUMENT 07 Sep 2016 01 Sep 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2016 31 Aug 2016
8-K Open Document Open Filing 8-K 19 Aug 2016 19 Aug 2016 001-31303
8-K Open Document Open Filing 8-K 16 Aug 2016 10 Aug 2016 001-31303
424B2 Open Document Open Filing FINAL PROSPECTUS SUPPLEMENT DATED AUGUST 10, 2016 (SENIOR UNSECURED NOTES) 11 Aug 2016 333-197895
FWP Open Document Open Filing FWP 10 Aug 2016 333-197895
424B5 Open Document Open Filing PRELIMINARY PROSPECTUS SUPPLEMENT DATED AUGUST 10, 2016 (SENIOR UNSECURED NOTES) 10 Aug 2016 333-197895
8-K Open Document Open Filing 8-K 10 Aug 2016 09 Aug 2016 001-31303
10-Q Open Document | Data Open Filing 10-Q 05 Aug 2016 30 Jun 2016 001-31303
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8-K Open Document Open Filing 8-K 04 Aug 2016 03 Aug 2016 001-31303
8-K Open Document Open Filing 8-K 03 Aug 2016 02 Aug 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2016 31 May 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2016 31 May 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Jun 2016 31 May 2016
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10-Q Open Document | Data Open Filing 10-Q 10 May 2016 31 Mar 2016 001-31303
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8-K Open Document | Data Open Filing 8-K 04 May 2016 03 May 2016 001-31303
8-K Open Document Open Filing 8-K 042616 ANNUAL MEETING 28 Apr 2016 26 Apr 2016 001-31303
8-K Open Document Open Filing OFFICER CHANGE APRIL 25 2016 26 Apr 2016 25 Apr 2016 001-31303
8-K Open Document | Data Open Filing FORM 8K COIPP CLOSING 04142016 14 Apr 2016 14 Apr 2016 001-31303
8-K Open Document Open Filing 4-8-16 ANALYST MEETINGS 08 Apr 2016 08 Apr 2016 001-31303
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8-K Open Document Open Filing 8-K 18 Mar 2016 18 Mar 2016 001-31303
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT-ATM EQUITY PROGRAM 18 Mar 2016 333-197895
8-K/A Open Document | Data Open Filing 8-K/A 18 Mar 2016 12 Feb 2016 001-31303
8-K Open Document Open Filing 8-K 18 Mar 2016 18 Mar 2016 001-31303
DEF 14A Open Document Open Filing BHC 2016 PROXY 17 Mar 2016 26 Apr 2016 001-31303
PRE 14A Open Document Open Filing PRE 14A 02 Mar 2016 17 Mar 2016 001-31303
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2016 29 Feb 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2016 29 Feb 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2016 29 Feb 2016
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4 Open Document Open Filing PRIMARY DOCUMENT 01 Mar 2016 26 Feb 2016
8-K Open Document Open Filing 8-K ANALYSTS MEETINGS 29 Feb 2016 29 Feb 2016 001-31303
10-K Open Document | Data Open Filing 10-K 25 Feb 2016 31 Dec 2015 001-31303
8-K Open Document Open Filing 8-K 12 Feb 2016 12 Feb 2016 001-31303
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
SC 13G Open Document Open Filing BLACK HILLS CORPORATION 12 Feb 2016 005-80081
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
4 Open Document Open Filing PRIMARY DOCUMENT 12 Feb 2016 10 Feb 2016
SC 13G Open Document Open Filing BLACKHILLS CORPORATION 10 Feb 2016 005-80081
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