{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-302034","form_type":"8-K","ticker":"OGS","cik":"0001587732","company_name":"ONE Gas, Inc.","filed_at":"2026-07-13T20:15:15+00:00","discovered_at":"2026-07-13T20:16:00.761147+00:00","generated_at":"2026-07-13T20:16:12.640846+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"ONE Gas appoints Nickolas Stavropoulos to board, expanding to nine members","bullets":["Board expanded from 8 to 9 members; Stavropoulos appointed effective July 13, 2026.","Stavropoulos, 68, is retired COO of PG&E and National Grid with 40+ years in energy.","He will serve on Audit, Corporate Governance and Executive Compensation committees.","Annual retainer of $105,000 prorated plus $140,000 stock retainer prorated.","Stavropoulos also serves on Ameresco (NYSE: AMRC) board."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-302034","json":"https://secwatch.observer/filing/0001193125-26-302034.json","markdown":"https://secwatch.observer/filing/0001193125-26-302034.md","text":"https://secwatch.observer/filing/0001193125-26-302034.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1587732/000119312526302034/0001193125-26-302034-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1587732/000119312526302034/d25881d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-13T20:16:12.640846+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":[{"claim_id":"2640873ec1","claim":"Nickolas Stavropoulos was appointed as Director at ONE Gas, Inc..","evidence_excerpt":"On July 13, 2026, we expanded our Board of Directors from eight to nine members, and Nickolas Stavropoulos was appointed to the Board to fill the additional position.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1587732/000119312526302034/0001193125-26-302034-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}