{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-24-062524","form_type":"8-K","ticker":"BKH","cik":"0001130464","company_name":"BLACK HILLS CORP /SD/","filed_at":"2024-05-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:17.391202+00:00","generated_at":"2026-06-01T19:12:48.212266+00:00","sec_items":["1.01","8.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Black Hills issues $450M of 6.000% notes due 2035 to refinance near-term debt","bullets":["Issued $450M principal of 6.000% Notes due January 15, 2035; semi-annual interest starts Jan 2025.","Gross proceeds ~$446.1M after original issue discount and underwriting discounts.","Proceeds used with available cash/short-term borrowings to retire $600M of 1.037% notes due Aug 2024.","Notes are unsecured senior obligations ranking equally with existing unsecured debt.","Underwriting agreement between Black Hills and several underwriters executed May 13, 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-24-062524","json":"https://secwatch.observer/filing/0001104659-24-062524.json","markdown":"https://secwatch.observer/filing/0001104659-24-062524.md","text":"https://secwatch.observer/filing/0001104659-24-062524.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1130464/000110465924062524/0001104659-24-062524-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1130464/000110465924062524/tm2413281d5_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T19:12:48.212266+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}