BLACK HILLS CORP /SD/ reports

Company location: Rapid City, SD
Fiscal year end: 31 December

BLACK HILLS CORP /SD/ has filed 3,089 SEC EDGAR filings since 22 Dec 2000

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SEC filing history

Showing 776-800 of 1,000 matching filings.

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25

Current page

32

4

PRIMARY DOCUMENT

Filing date: 02 Mar 2018
Reporting date: 28 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 02 Mar 2018
Reporting date: 28 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 02 Mar 2018
Reporting date: 28 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 02 Mar 2018
Reporting date: 28 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-31303

10-K

Filing date: 26 Feb 2018
Reporting date: 31 Dec 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-31303

8-K

Filing date: 26 Feb 2018
Reporting date: 23 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-80081

BLACK HILLS CORPORATION

Filing date: 14 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-80081

SC 13G/A filing

Filing date: 08 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-80081

SC 13G/A filing

Filing date: 08 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 07 Feb 2018
Reporting date: 05 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Feb 2018
Reporting date: 02 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Feb 2018
Reporting date: 02 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Feb 2018
Reporting date: 02 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Feb 2018
Reporting date: 02 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

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