{"schema_version":"secwatch.filing_event.v1","accession":"0001733998-24-000143","form_type":"8-K","ticker":"NWN","cik":"0001733998","company_name":"Northwest Natural Holding Co","filed_at":"2024-12-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.401607+00:00","generated_at":"2026-05-28T22:48:37.614072+00:00","sec_items":["8.01"],"event_type":"regulatory","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"NW Natural files $59.4M Oregon rate case; extends credit facilities to 2027","bullets":["NW Natural subsidiary filed Oregon rate case requesting $59.4M annual revenue increase (~5.79% above current rates).","Filing assumes 52% equity, 10.4% ROE, 7.658% cost of capital, average rate base of $2.29B.","$204M rate base increase driven by distribution system upgrades, IT/cybersecurity, and Mist gas storage investments.","OPUC review expected up to 10 months; new rates targeted to take effect November 1, 2025.","NW Holdings $200M and NW Natural $400M credit facilities extended to November 2027 from November 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001733998-24-000143","json":"https://secwatch.observer/filing/0001733998-24-000143.json","markdown":"https://secwatch.observer/filing/0001733998-24-000143.md","text":"https://secwatch.observer/filing/0001733998-24-000143.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1733998/000173399824000143/0001733998-24-000143-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/73020/000173399824000143/nwn-20241230.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-28T22:48:37.614072+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"}