{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-226896","form_type":"8-K","ticker":"BKH","cik":"0001130464","company_name":"BLACK HILLS CORP /SD/","filed_at":"2026-05-15T20:27:31+00:00","discovered_at":"2026-05-15T20:32:00.287724+00:00","generated_at":"2026-05-15T21:11:12.821117+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"NorthWestern Q1 net income down 18% YoY; merger with Black Hills on track for H2 2026","bullets":["NorthWestern Q1 2026 net income $63.5M ($1.03 diluted EPS) vs $76.9M ($1.25) YoY.","Revenue $497.6M, up 6.6% YoY from $466.6M, on higher electric and gas revenue.","Merger with Black Hills: shareholders approved in Apr 2026; HSR period expired; settlements in NE, MT, SD filed.","Regulatory approvals pending from MPSC, NPSC, SDPUC, and FERC; hearings scheduled in Q2 2026.","Colstrip acquisitions (Avista/Puget interests) closed Jan 1, 2026; interim PCCAM waiver approved."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-226896","json":"https://secwatch.observer/filing/0001193125-26-226896.json","markdown":"https://secwatch.observer/filing/0001193125-26-226896.md","text":"https://secwatch.observer/filing/0001193125-26-226896.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1130464/000119312526226896/0001193125-26-226896-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1130464/000119312526226896/bkh-20260515.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T21:11:12.821117+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"}