{"schema_version":"secwatch.filing_event.v1","accession":"0001733998-25-000172","form_type":"8-K","ticker":"NWN","cik":"0001733998","company_name":"Northwest Natural Holding Co","filed_at":"2025-10-28T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.276747+00:00","generated_at":"2026-05-17T01:57:50.459010+00:00","sec_items":["8.01"],"event_type":"regulatory","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"OPUC approves NW Natural rate case with $20.7M revenue increase, effective Oct 31","bullets":["Final order on Oct 24 approves stipulations; revenue increase of $20.7M over existing rates.","Original request was $59.4M; stipulation set $21.3M; final adjusted down for capital projects.","Average rate base $2.27B, up $180.1M since last case; new rates effective Oct 31, 2025.","Approved ROE of 9.5%, capital structure 50% equity/50% debt, overall cost of capital 7.12%.","OPUC rejected proposals by CUB and Coalition; resolves regulatory litigation."],"urls":{"canonical":"https://secwatch.observer/filing/0001733998-25-000172","json":"https://secwatch.observer/filing/0001733998-25-000172.json","markdown":"https://secwatch.observer/filing/0001733998-25-000172.md","text":"https://secwatch.observer/filing/0001733998-25-000172.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000172/0001733998-25-000172-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000172/nwn-20251024.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T01:57:50.459010+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"}