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
xy0rz
29 Sep 15
Correspondence with SEC
12:00am
UPLOAD
05yuty cdadx9wenu
15 Sep 15
Letter from SEC
12:00am
UPLOAD
efm4inqh
3 Sep 13
Letter from SEC
12:00am
CORRESP
s0fmi0 8zhkwst
11 Jul 13
Correspondence with SEC
12:00am
UPLOAD
pqkim
13 Jun 13
Letter from SEC
12:00am
UPLOAD
6011u8 ghe6rxlu7jc8k
8 Mar 11
Letter from SEC
12:00am
CORRESP
x86s98g953a86
3 Mar 11
Correspondence with SEC
12:00am
UPLOAD
lft1jlngp nc23672y
16 Feb 11
Letter from SEC
12:00am
CORRESP
n2ph8
27 Jan 11
Correspondence with SEC
12:00am
UPLOAD
vu70qfsh
28 Dec 10
Letter from SEC
12:00am
UPLOAD
l9lt97l1cw0vrepz4dcx
19 Oct 09
Letter from SEC
12:00am
CORRESP
9hn672zz6ds6aifnwq4
30 Sep 09
Correspondence with SEC
12:00am
UPLOAD
ukhuhuz u1za6biy
8 Sep 09
Letter from SEC
12:00am
UPLOAD
fx0f 4j6kodj590qa
19 Oct 07
Letter from SEC
12:00am
CORRESP
1v4 e3q1yjk
24 Aug 07
Correspondence with SEC
12:00am