{"filing":{"accession_number":"0001733998-26-000137","cik":"0001733998","ticker":"NWN","company_name":"Northwest Natural Holding Co","form":"8-K","filing_date":"2026-09-03","report_date":"2026-09-03","primary_document":"nwn-20260903.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000137/nwn-20260903.htm"},"events":[{"id":31592,"run_id":29000,"accession_number":"0001733998-26-000137","anchor_item_number":"2.03","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.98,"summary":"Northwest Natural Gas Company issued $120 million in aggregate principal amount of First Mortgage Bonds in two series (5.62% due 2036 and 6.26% due 2056) on September 3, 2026. This is a clear creation of direct financial obligations under Item 2.03, representing a material debt issuance that increases the registrant's long-term debt obligations and would affect investor assessment of capital structure and financial risk.","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-09-03","form":"8-K","submitted_at":null,"items":[{"id":34522,"accession_number":"0001733998-26-000137","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Northwest Natural Gas Company issued $120 million in aggregate principal amount of First Mortgage Bonds in two series (5.62% due 2036 and 6.26% due 2056) on September 3, 2026. This is a clear creation of direct financial obligations under Item 2.03, representing a material debt issuance that increases the registrant's long-term debt obligations and would affect investor assessment of capital structure and financial risk.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-03T20:13:37.243587+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":34522,"accession_number":"0001733998-26-000137","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Northwest Natural Gas Company issued $120 million in aggregate principal amount of First Mortgage Bonds in two series (5.62% due 2036 and 6.26% due 2056) on September 3, 2026. This is a clear creation of direct financial obligations under Item 2.03, representing a material debt issuance that increases the registrant's long-term debt obligations and would affect investor assessment of capital structure and financial risk.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-03T20:13:37.243587+00:00","company_name":"Northwest Natural Holding Co","ticker":"NWN","filing_date":"2026-09-03"}]}