21 filings
15-15D
Black Hills Power, Inc.
1 Feb 21
Suspension of duty to report
12:00am
POSASR
BKH
Black Hills Corporation
27 Oct 09
Automatic shelf registration (post-effective amendment)
12:00am
424B2
Black Hills Power, Inc.
23 Oct 09
Prospectus for primary offering
12:00am
FWP
Black Hills Power, Inc.
22 Oct 09
Free writing prospectus
12:00am
POSASR
BKH
Black Hills Corporation
22 Oct 09
Automatic shelf registration (post-effective amendment)
12:00am
424B5
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22 Oct 09
Prospectus supplement for primary offering
12:00am
POS AM
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18 May 04
Prospectus update (post-effective amendment)
12:00am
424B4
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9 Aug 02
Prospectus supplement with pricing info
12:00am
S-3DPOS
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30 Jan 01
Registration of securities, dividend or interest reinvestment plans, immediately effective (post-effective amendment)
12:00am
S-8
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14 Feb 00
Registration of securities for employees
12:00am
S-8
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14 Jul 99
Registration of securities for employees
12:00am
S-8
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21 Aug 98
Registration of securities for employees
12:00am
S-8
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6 Dec 96
Registration of securities for employees
12:00am
POS AM
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26 Jul 96
Prospectus update (post-effective amendment)
12:00am
S-8
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29 Sep 95
Registration of securities for employees
12:00am
424B5
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12 Jul 95
Prospectus supplement for primary offering
12:00am
424B5
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31 Jan 95
Prospectus supplement for primary offering
12:00am
424B2
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29 Aug 94
Prospectus for primary offering
12:00am