{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-099727","form_type":"8-K","ticker":"BKH","cik":"0001130464","company_name":"BLACK HILLS CORP /SD/","filed_at":"2023-09-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.207545+00:00","generated_at":"2026-06-10T21:36:25.194674+00:00","sec_items":["1.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Black Hills Corporation issues $450M of 6.150% Notes due 2034","bullets":["Principal amount $450M, 6.150% Notes due 2034 via underwriting agreement.","Gross consideration approximately $443.6M after original issue discount and underwriting discounts.","Settlement scheduled for September 15, 2023, subject to customary closing conditions.","Notes offered under existing shelf registration statement (Reg. No. 333-272739)."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-099727","json":"https://secwatch.observer/filing/0001104659-23-099727.json","markdown":"https://secwatch.observer/filing/0001104659-23-099727.md","text":"https://secwatch.observer/filing/0001104659-23-099727.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/0001104659-23-099727-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/tm2322836d5_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T21:36:25.194674+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"1675ddc8bfcef4ed7800000c4ef525c9e4e71cea","claim":"BLACK HILLS CORP /SD/ entered into Underwriting Agreement with representatives of the several underwriters valued at $450 million (effective 2023-09-06).","evidence_excerpt":"On September 6, 2023, Black Hills Corporation (the “ Company ” or “ we ”) entered into an Underwriting Agreement by and between the Company and the representatives of the several underwriters named in Schedule A thereto (the “ Underwriting Agreement ”), pursuant to which the Company has agreed to issue and sell and the underwriters have severally agreed to purchase an aggregate principal amount of $450 million of its 6.150% Notes due 2034 (the “ Notes ”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1130464/000110465923099727/0001104659-23-099727-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"underwriting"},{"label":"Counterparty","value":"representatives of the several underwriters"},{"label":"Value","value":"$450 million"},{"label":"Effective","value":"2023-09-06"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}