<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2021 Workiva--><!--r:4d97a37f-d36a-483e-bbdc-7324b1a39581,g:c1d3ed35-49c0-406c-a6d3-4cd840f9ddb5,d:9d7d0402c3a94c40a62878b92154e96b--><html xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns="http://www.w3.org/1999/xhtml" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:xbrli="http://www.xbrl.org/2003/instance" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>bkh-20210719</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl81NC9mcmFnOjg0ZjQ3MTJkNWZlMDQ0NTBiZTk2ZmJhNTZjNDliYTQ5L3RhYmxlOjk5YjRmN2ZlZjQ0OTQ1ZTc4NzNjNmMxN2RkYTU3NDI3L3RhYmxlcmFuZ2U6OTliNGY3ZmVmNDQ5NDVlNzg3M2M2YzE3ZGRhNTc0MjdfMC0xLTEtMS0yMjk_55f7f77e-55f3-4867-971f-f09c2a5814c8">0001130464</ix:nonNumeric><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt:booleanfalse" name="dei:AmendmentFlag" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl81NC9mcmFnOjg0ZjQ3MTJkNWZlMDQ0NTBiZTk2ZmJhNTZjNDliYTQ5L3RhYmxlOjk5YjRmN2ZlZjQ0OTQ1ZTc4NzNjNmMxN2RkYTU3NDI3L3RhYmxlcmFuZ2U6OTliNGY3ZmVmNDQ5NDVlNzg3M2M2YzE3ZGRhNTc0MjdfMS0xLTEtMS0yMjk_a7fae41d-83a5-4fc5-a6dd-af0e4cf4fcb2">false</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="bkh-20210719.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="ie97c825db03b40b2872cb985be86f527_D20210719-20210719"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001130464</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2021-07-19</xbrli:startDate><xbrli:endDate>2021-07-19</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i9d7d0402c3a94c40a62878b92154e96b_33"></div><div style="min-height:45pt;width:100%"><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Washington, D.C. 20549</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Form <ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjA3Mg_4b8eecb0-13d1-4c38-8ca0-820711190c9b">8-K</ix:nonNumeric> </span></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">PURSUANT TO SECTION 13 OF 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Date of Report (Date of earliest event reported) <ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzNDkyMg_d8e7648b-1179-4311-ba6b-67915faa3674">July 19, 2021</ix:nonNumeric></span></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjEzNA_6591d1cc-7bde-467f-8be2-47d972597224">Black Hills Corporation</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(Exact name of registrant as specified in its charter)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjE0OA_6dc0be86-9664-4d3e-ae27-71acb41038fb">South Dakota</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(State or other jurisdiction of incorporation)</span></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjE1OQ_9147c32e-e921-4400-84d9-54c70255de4d">001-31303</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(Commission File Number)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjE3MQ_a980274a-43b4-40b4-ac3b-5bf43bb3b891">46-0458824</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(IRS Employer Identification No.)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjE5Nw_f5493e63-b0c1-4b5a-8b3b-7b385cd0893a">7001 Mount Rushmore Road</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjIwOQ_3d3705cd-3fc9-4d10-95ec-a7a9dc3cea41">Rapid City</ix:nonNumeric>, <ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjIyMw_bf538c78-e81a-4298-a9f8-b15d2ae3e08b">South Dakota</ix:nonNumeric>  <ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjIzMQ_4e2c0d99-3614-4c0a-8e63-bb579acca6f3">57702</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(Address of principal executive offices)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(<ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjI0Mg_bf3e040d-f0c3-461f-9080-ab7969990a60">605</ix:nonNumeric>) <ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RleHRyZWdpb246NDY5MmQ1YzhiMzliNDhlZGJkNjg4ZGFlYWY3M2I1YjlfMTA5OTUxMTYzMjI1NQ_c4466ee7-720f-4e85-b102-2af92a19cd4d">721-1700</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(Registrants telephone number)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Not Applicable</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(Former name or former address, if changed since last report)</span></div><div style="text-align:center"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.468%"><tr><td style="width:1.0%"></td><td style="width:2.999%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.581%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:92.020%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:boolballotbox" name="dei:WrittenCommunications" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjAwZThhMDAzY2Y4MTQxZjE4N2EwNjM3MTRjMjYzODczL3RhYmxlcmFuZ2U6MDBlOGEwMDNjZjgxNDFmMTg3YTA2MzcxNGMyNjM4NzNfMC0wLTEtMS0xOTg_e8245532-9fd7-4891-af9e-4fc2837b6c8b">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:boolballotbox" name="dei:SolicitingMaterial" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjAwZThhMDAzY2Y4MTQxZjE4N2EwNjM3MTRjMjYzODczL3RhYmxlcmFuZ2U6MDBlOGEwMDNjZjgxNDFmMTg3YTA2MzcxNGMyNjM4NzNfMi0wLTEtMS0yMDA_4c22c6ae-85da-4b15-975b-71c1bf25f883">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Soliciting materials pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:boolballotbox" name="dei:PreCommencementTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjAwZThhMDAzY2Y4MTQxZjE4N2EwNjM3MTRjMjYzODczL3RhYmxlcmFuZ2U6MDBlOGEwMDNjZjgxNDFmMTg3YTA2MzcxNGMyNjM4NzNfNC0wLTEtMS0yMDI_779628f6-8c91-4b83-9c48-23d5919eb57f">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(d))</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjAwZThhMDAzY2Y4MTQxZjE4N2EwNjM3MTRjMjYzODczL3RhYmxlcmFuZ2U6MDBlOGEwMDNjZjgxNDFmMTg3YTA2MzcxNGMyNjM4NzNfNi0wLTEtMS0yMDQ_77e6b830-cbb1-4931-ac3e-bf0f5c545bac">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 13e-e(c) under the Exchange Act (17 CFR 240.13e-4(c)</span></td></tr></table></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.045%"><tr><td style="width:1.0%"></td><td style="width:34.194%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:28.164%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:34.342%"></td><td style="width:0.1%"></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Securities registered pursuant to Section 12(b) of the Act:</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Title of each class</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Trading Symbol(s)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Name of each exchange on which registered</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjBlYWE5M2FiNzVlYzRmMGNiZGNlOWY0ZDM2YzE3Yjg2L3RhYmxlcmFuZ2U6MGVhYTkzYWI3NWVjNGYwY2JkY2U5ZjRkMzZjMTdiODZfMi0wLTEtMS0yMDY_b082d295-004a-446f-bb05-42993dbf7c8a">Common stock of $1.00 par value</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjBlYWE5M2FiNzVlYzRmMGNiZGNlOWY0ZDM2YzE3Yjg2L3RhYmxlcmFuZ2U6MGVhYTkzYWI3NWVjNGYwY2JkY2U5ZjRkMzZjMTdiODZfMi0xLTEtMS0yMDg_e63f9e9e-6422-4908-ab82-2d27575439c3">BKH</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOjBlYWE5M2FiNzVlYzRmMGNiZGNlOWY0ZDM2YzE3Yjg2L3RhYmxlcmFuZ2U6MGVhYTkzYWI3NWVjNGYwY2JkY2U5ZjRkMzZjMTdiODZfMi0yLTEtMS0yMTA_0001847b-36b5-45c4-9144-3f540b08942a">New York Stock Exchange</ix:nonNumeric></span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.858%"><tr><td style="width:1.0%"></td><td style="width:42.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.001%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:25.066%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:25.069%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Emerging growth company</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie97c825db03b40b2872cb985be86f527_D20210719-20210719" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="id3VybDovL2RvY3MudjEvZG9jOjlkN2QwNDAyYzNhOTRjNDBhNjI4NzhiOTIxNTRlOTZiL3NlYzo5ZDdkMDQwMmMzYTk0YzQwYTYyODc4YjkyMTU0ZTk2Yl8zMy9mcmFnOjQ2OTJkNWM4YjM5YjQ4ZWRiZDY4OGRhZWFmNzNiNWI5L3RhYmxlOmE5NmFjMjRkODQ0YTQyN2ZiY2RiYWQxMzAxOTc4MWEyL3RhYmxlcmFuZ2U6YTk2YWMyNGQ4NDRhNDI3ZmJjZGJhZDEzMDE5NzgxYTJfMC0xLTEtMS0yMTI_a537544a-b468-42dc-9494-9c3c7be73183">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.        &#9744;</span></div><div style="height:45pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="i9d7d0402c3a94c40a62878b92154e96b_85"></div><hr style="page-break-after:always"/><div style="min-height:72pt;width:100%"><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Item 1.01&#160;&#160;&#160;&#160;Entry into a Material Definitive Agreement</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">On July 19, 2021, the Company entered into a Fourth Amended and Restated Credit Agreement, among Black Hills Corporation, as Borrower, the financial institutions party thereto, as Banks, and U.S. Bank National Association, as Administrative Agent (the &#8220;Restated Revolver&#8221;). The Restated Revolver extends the term from July 30, 2023 to July 19, 2026, with two one-year extension options (subject to consent from the lenders). The Restated Revolver also has an accordion feature that allows the Company to increase availability from $750 million to up to $1 billion with the consent of the administrative agent, the issuing agents and each bank increasing or providing a new commitment.  The cost of borrowing under the Restated Revolver remains unchanged at a spread of 112.5 basis points over LIBOR for borrowings and 17.5 basis points over LIBOR for the unused facility commitments, which can change from time-to-time based on our senior unsecured long-term debt ratings. Otherwise, the Restated Revolver is on terms that are similar, in all material respects, to the terms of the revolving credit agreement that it amends and restates. As of July 19, 2021, there were no borrowings outstanding, and there were $13.6 million of letters of credit issued, under the Restated Revolver. The Restated Revolver is filed as Exhibit 10.1 to this Form 8-K and is incorporated herein by reference.</span></div><div><span><br/></span></div><div><span><br/></span></div><div id="i9d7d0402c3a94c40a62878b92154e96b_92"></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:112%">The information required by this item is included in Item 1.01.</span></div><div><span><br/></span></div><div><span><br/></span></div><div id="i9d7d0402c3a94c40a62878b92154e96b_71"></div><div style="-sec-extract:summary"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Item 9.01&#160;&#160;&#160;&#160;Financial Statements and Exhibits</span></div><div><span><br/></span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(d)&#160;&#160;&#160;&#160;Exhibits</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:14.284%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:83.516%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">Exhibit No.</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">Description</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">10.1</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline" href="exhibit101amendedandrestat.htm">Fourth Amended and Restated Credit Agreement dated as of July 19, 2021, among Black  Hills Corporation, as Borrower, the financial institutions party thereto, as Banks, and U.S.  Bank, National Association, as Administrative Agent.</a></span></div></td></tr><tr style="height:9pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">104</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Cover Page Interactive Data File (formatted as the Inline XBRL document)</span></td></tr></table></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div id="i9d7d0402c3a94c40a62878b92154e96b_78"></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%;text-decoration:underline">SIGNATURES</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="padding-left:288pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">BLACK HILLS CORPORATION</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="padding-left:288pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%;text-decoration:underline">By: /s/ Richard W. Kinzley&#160;&#160;&#160;&#160;</span></div><div style="padding-left:288pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Richard W. Kinzley</span></div><div style="padding-left:288pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Senior Vice President</span></div><div style="padding-left:288pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">and Chief Financial Officer</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Date:  July 19, 2021 </span></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
[{"type": "8-K", "sequence": "1", "filename": "bkh-20210719.htm", "description": "8-K", "secsgml_size_bytes": 31624}]
{"company-data": {"conformed-name": "BLACK HILLS CORP /SD/", "cik": "0001130464", "assigned-sic": "4911", "irs-number": "460458824", "state-of-incorporation": "SD", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-31303", "film-number": "211098759"}, "business-address": {"street1": "7001 MT RUSHMORE RD", "street2": "PO BOX 1400", "city": "RAPID CITY", "state": "SD", "zip": "57709", "phone": "6057212343"}, "mail-address": {"street1": "7001 MT RUSHMORE RD", "street2": "PO BOX 1400", "city": "RAPID", "state": "SD", "zip": "57709"}, "former-company": {"former-conformed-name": "BLACK HILLS HOLDING CORP", "date-changed": "20001222"}}
bkh-20210719
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form
8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OF 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported)
July 19, 2021
Black Hills Corporation
(Exact name of registrant as specified in its charter)
South Dakota
(State or other jurisdiction of incorporation)
001-31303
(Commission File Number)
46-0458824
(IRS Employer Identification No.)
7001 Mount Rushmore Road
Rapid City
,
South Dakota
57702
(Address of principal executive offices)
(
605
)
721-1700
(Registrants telephone number)
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐
Soliciting materials pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(d))
☐
Pre-commencement communications pursuant to Rule 13e-e(c) under the Exchange Act (17 CFR 240.13e-4(c)
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common stock of $1.00 par value
BKH
New York Stock Exchange
Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.        ☐
Item 1.01    Entry into a Material Definitive Agreement
On July 19, 2021, the Company entered into a Fourth Amended and Restated Credit Agreement, among Black Hills Corporation, as Borrower, the financial institutions party thereto, as Banks, and U.S. Bank National Association, as Administrative Agent (the "Restated Revolver"). The Restated Revolver extends the term from July 30, 2023 to July 19, 2026, with two one-year extension options (subject to consent from the lenders). The Restated Revolver also has an accordion feature that allows the Company to increase availability from $750 million to up to $1 billion with the consent of the administrative agent, the issuing agents and each bank increasing or providing a new commitment.  The cost of borrowing under the Restated Revolver remains unchanged at a spread of 112.5 basis points over LIBOR for borrowings and 17.5 basis points over LIBOR for the unused facility commitments, which can change from time-to-time based on our senior unsecured long-term debt ratings. Otherwise, the Restated Revolver is on terms that are similar, in all material respects, to the terms of the revolving credit agreement that it amends and restates. As of July 19, 2021, there were no borrowings outstanding, and there were $13.6 million of letters of credit issued, under the Restated Revolver. The Restated Revolver is filed as Exhibit 10.1 to this Form 8-K and is incorporated herein by reference.
Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
The information required by this item is included in Item 1.01.
Item 9.01    Financial Statements and Exhibits
(d)    Exhibits
Exhibit No.
Description
10.1
Fourth Amended and Restated Credit Agreement dated as of July 19, 2021, among Black  Hills Corporation, as Borrower, the financial institutions party thereto, as Banks, and U.S.  Bank, National Association, as Administrative Agent.
104
Cover Page Interactive Data File (formatted as the Inline XBRL document)
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
BLACK HILLS CORPORATION
By: /s/ Richard W. Kinzley
Richard W. Kinzley
Senior Vice President
and Chief Financial Officer
Date:  July 19, 2021