EX-21 3 bkhex-21listofsubs122017.htm EXHIBIT 21 Exhibit


Exhibit 21
BLACK HILLS CORPORATION SUBSIDIARIES
December 31, 2017


 
Subsidiary Name
State of Origin
1.
Black Hills Cabresto Pipeline, LLC
Delaware
2.
Black Hills/Colorado Electric Utility Company, LP *
Delaware
3.
Black Hills/Colorado Gas Utility Company, LP *
Delaware
4.
Black Hills Colorado IPP, LLC *
South Dakota
5.
Black Hills/Colorado Utility Company, LLC *
Colorado
6.
Black Hills/Colorado Utility Company II, LLC *
Colorado
7.
Black Hills Electric Generation, LLC *
South Dakota
8.
Black Hills Energy Arkansas, Inc. *
Arkansas
9.
Black Hills Energy Services Company *
Colorado
10.
Black Hills Exploration and Production, Inc. *
Wyoming
11.
Black Hills Gas, Inc.
Delaware
12.
Black Hills Gas, LLC
Delaware
13.
Black Hills Gas Distribution, LLC *
Delaware
14.
Black Hills Gas Holdings Corp.
Colorado
15.
Black Hills Gas Holdings, LLC
Delaware
16.
Black Hills Gas Parent Holdings II, Inc.
Delaware
17.
Black Hills Gas Resources, Inc. *
Colorado
18.
Black Hills/Iowa Gas Utility Company, LLC *
Delaware
19.
Black Hills/Kansas Gas Utility Company, LLC *
Kansas
20.
Black Hills Midstream, LLC
South Dakota
21.
Black Hills/Nebraska Gas Utility Company, LLC *
Delaware
22.
Black Hills Non-regulated Holdings, LLC
South Dakota
23.
Black Hills Northwest Wyoming Gas Utility Company, LLC *
Wyoming
24.
Black Hills Plateau Production, LLC *
Delaware
25.
Black Hills Power, Inc. *
South Dakota
26.
Black Hills Service Company, LLC
South Dakota
27.
Black Hills Shoshone Pipeline, LLC *
Wyoming
28.
Black Hills Utility Holdings, Inc. *
South Dakota
29.
Black Hills Wyoming, LLC
Wyoming
30.
Cheyenne Light, Fuel and Power Company *
Wyoming
31.
Generation Development Company, LLC
South Dakota
32.
Mallon Oil Company, Sucursal Costa Rica
Costa Rica
33.
N780BH, LLC
South Dakota
34.
Rocky Mountain Natural Gas LLC *
Colorado
35.
Wyodak Resources Development Corp. *
Delaware

* doing business as Black Hills Energy