<SEC-DOCUMENT>0001593968-21-002055-index.html : 20210902
<SEC-HEADER>0001593968-21-002055.hdr.sgml : 20210902
<ACCEPTANCE-DATETIME>20210902134808
ACCESSION NUMBER:		0001593968-21-002055
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210831
FILED AS OF DATE:		20210902
DATE AS OF CHANGE:		20210902

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MILLS STEVEN RICHARD
		CENTRAL INDEX KEY:			0001230727

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31303
		FILM NUMBER:		211232554

	MAIL ADDRESS:	
		STREET 1:		C/O ARCHER DANIELS MIDLAND CO
		STREET 2:		4666 FARIES PARKWAY
		CITY:			DECATUR
		STATE:			IL
		ZIP:			62526

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACK HILLS CORP /SD/
		CENTRAL INDEX KEY:			0001130464
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				460458824
		STATE OF INCORPORATION:			SD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7001 MT RUSHMORE RD
		STREET 2:		PO BOX 1400
		CITY:			RAPID CITY
		STATE:			SD
		ZIP:			57709
		BUSINESS PHONE:		6057212343

	MAIL ADDRESS:	
		STREET 1:		7001 MT RUSHMORE RD
		STREET 2:		PO BOX 1400
		CITY:			RAPID
		STATE:			SD
		ZIP:			57709

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACK HILLS HOLDING CORP
		DATE OF NAME CHANGE:	20001222
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_01.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: primary_01.html

Document 1 - RAW XML: primary_01.xml

</DOCUMENT>
</SEC-DOCUMENT>