<SEC-DOCUMENT>0001104659-20-089816-index.html : 20200804 <SEC-HEADER>0001104659-20-089816.hdr.sgml : 20200804 <ACCEPTANCE-DATETIME>20200803212738 ACCESSION NUMBER: 0001104659-20-089816 CONFORMED SUBMISSION TYPE: S-3ASR PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20200804 DATE AS OF CHANGE: 20200803 EFFECTIVENESS DATE: 20200804 FILER: 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 FILING VALUES: FORM TYPE: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-240319 FILM NUMBER: 201070774 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>S-3ASR <SEQUENCE>1 <FILENAME>tm2026019-1_s3asr.htm <DESCRIPTION>S-3ASR <TEXT> Document 1 - file: tm2026019-1_s3asr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>2 <FILENAME>tm2026019d2_ex5-1.htm <DESCRIPTION>OPINION OF BRIAN G. IVERSON <TEXT> Document 2 - file: tm2026019d2_ex5-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>3 <FILENAME>tm2026019d2_ex23-1.htm <DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM <TEXT> Document 3 - file: tm2026019d2_ex23-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24 <SEQUENCE>4 <FILENAME>tm2026019d2-ex24.htm <DESCRIPTION>POWERS OF ATTORNEY <TEXT> Document 4 - file: tm2026019d2-ex24.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>lg_blackhillsenergy-4c.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: lg_blackhillsenergy-4c.jpg
</DOCUMENT> </SEC-DOCUMENT>