{"filing":{"accession_number":"0001733998-26-000123","cik":"0001733998","ticker":"NWN","company_name":"Northwest Natural Holding Co","form":"8-K","filing_date":"2026-07-31","report_date":"2026-07-29","primary_document":"nwn-20260729.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000123/nwn-20260729.htm"},"events":[{"id":22391,"run_id":20254,"accession_number":"0001733998-26-000123","anchor_item_number":"8.01","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"summary":"The WUTC issued an order approving a multi-year rate increase for NW Natural's Washington operations, authorizing $20.1 million in Year 1 revenue increases (effective August 2026), $7.5 million in Year 2, and $7.4 million in Year 3. This is a material regulatory outcome affecting the company's revenue and rate base, but it is fundamentally a favorable regulatory approval rather than a crisis, covenant breach, or other specific event type. The disclosure centers on the operational and financial impact of approved rate recovery, making it an operational/regulatory milestone rather than a financial obligation event (debt_issuance) or other category.","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-07-31","form":"8-K","submitted_at":null,"items":[{"id":22317,"accession_number":"0001733998-26-000123","item_number":"8.01","item_title":null,"event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The WUTC issued an order approving a multi-year rate increase for NW Natural's Washington operations, authorizing $20.1 million in Year 1 revenue increases (effective August 2026), $7.5 million in Year 2, and $7.4 million in Year 3. This is a material regulatory outcome affecting the company's revenue and rate base, but it is fundamentally a favorable regulatory approval rather than a crisis, covenant breach, or other specific event type. The disclosure centers on the operational and financial impact of approved rate recovery, making it an operational/regulatory milestone rather than a financial obligation event (debt_issuance) or other category.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:11:45.718441+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":22317,"accession_number":"0001733998-26-000123","item_number":"8.01","item_title":null,"event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The WUTC issued an order approving a multi-year rate increase for NW Natural's Washington operations, authorizing $20.1 million in Year 1 revenue increases (effective August 2026), $7.5 million in Year 2, and $7.4 million in Year 3. This is a material regulatory outcome affecting the company's revenue and rate base, but it is fundamentally a favorable regulatory approval rather than a crisis, covenant breach, or other specific event type. The disclosure centers on the operational and financial impact of approved rate recovery, making it an operational/regulatory milestone rather than a financial obligation event (debt_issuance) or other category.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:11:45.718441+00:00","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-07-31"}]}