{"filing":{"accession_number":"0001004155-26-000016","cik":"0001004155","ticker":null,"company_name":"SOUTHERN CO GAS","form":"8-K","filing_date":"2026-09-08","report_date":"2026-09-08","primary_document":"so-20260908.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1004155/000100415526000016/so-20260908.htm"},"events":[{"id":31892,"run_id":29291,"accession_number":"0001004155-26-000016","anchor_item_number":"8.01","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"summary":"Southern Company Gas' subsidiary Nicor Gas entered into a Stipulation and Settlement on September 8, 2026, to resolve a general base rate case with the Illinois Commerce Commission. The settlement provides for an $82 million annual base rate revenue increase with a 9.48% return on equity, subject to Illinois Commission approval by December 7, 2026. This is a material regulatory and operational event affecting the company's rate structure and revenue, but does not fit the specific categories of debt issuance, dividend distribution, workforce reduction, or other named financial/operational types—it is a regulatory settlement with significant business implications.","company_name":"SOUTHERN CO GAS","ticker":null,"filing_date":"2026-09-08","form":"8-K","submitted_at":null,"items":[{"id":34925,"accession_number":"0001004155-26-000016","item_number":"8.01","item_title":null,"event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"Southern Company Gas' subsidiary Nicor Gas entered into a Stipulation and Settlement on September 8, 2026, to resolve a general base rate case with the Illinois Commerce Commission. The settlement provides for an $82 million annual base rate revenue increase with a 9.48% return on equity, subject to Illinois Commission approval by December 7, 2026. This is a material regulatory and operational event affecting the company's rate structure and revenue, but does not fit the specific categories of debt issuance, dividend distribution, workforce reduction, or other named financial/operational types—it is a regulatory settlement with significant business implications.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-08T14:16:36.951998+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":34925,"accession_number":"0001004155-26-000016","item_number":"8.01","item_title":null,"event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"Southern Company Gas' subsidiary Nicor Gas entered into a Stipulation and Settlement on September 8, 2026, to resolve a general base rate case with the Illinois Commerce Commission. The settlement provides for an $82 million annual base rate revenue increase with a 9.48% return on equity, subject to Illinois Commission approval by December 7, 2026. This is a material regulatory and operational event affecting the company's rate structure and revenue, but does not fit the specific categories of debt issuance, dividend distribution, workforce reduction, or other named financial/operational types—it is a regulatory settlement with significant business implications.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-08T14:16:36.951998+00:00","company_name":"SOUTHERN CO GAS","ticker":null,"filing_date":"2026-09-08"}]}