31 filings
UPLOAD
BKH
Black Hills Corporation
14 Oct 16
Letter from SEC
12:00am
CORRESP
BKH
Black Hills Corporation
7 Oct 16
Correspondence with SEC
12:00am
UPLOAD
BKH
Black Hills Corporation
23 Sep 16
Letter from SEC
12:00am
CERTNYS
BKH
Black Hills Corporation
23 Nov 15
Certification of approval for NYSE listing
12:00am
UPLOAD
BKH
Black Hills Corporation
7 Oct 15
Letter from SEC
12:00am
CORRESP
24a4rxfnmao3wmqmuh68
29 Sep 15
Correspondence with SEC
12:00am
UPLOAD
6x0wt9
15 Sep 15
Letter from SEC
12:00am
UPLOAD
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3 Sep 13
Letter from SEC
12:00am
CORRESP
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11 Jul 13
Correspondence with SEC
12:00am
UPLOAD
8tffuz63io84h7mob
13 Jun 13
Letter from SEC
12:00am
UPLOAD
apj3f
8 Mar 11
Letter from SEC
12:00am
CORRESP
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3 Mar 11
Correspondence with SEC
12:00am
UPLOAD
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16 Feb 11
Letter from SEC
12:00am
CORRESP
lp82tk4e8cpq icgg
27 Jan 11
Correspondence with SEC
12:00am
UPLOAD
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28 Dec 10
Letter from SEC
12:00am
UPLOAD
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19 Oct 09
Letter from SEC
12:00am
CORRESP
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30 Sep 09
Correspondence with SEC
12:00am
UPLOAD
n3wvbqr axpjvt25qkbw
8 Sep 09
Letter from SEC
12:00am
UPLOAD
lu17pixey41
19 Oct 07
Letter from SEC
12:00am
CORRESP
27szzhwhzg
24 Aug 07
Correspondence with SEC
12:00am