---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-349155"
form_type: "8-K"
ticker: "OGS"
cik: "0001587732"
company_name: "ONE Gas, Inc."
filed_at: "2026-08-13T20:06:07+00:00"
generated_at: "2026-08-13T20:08:04.189724+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# ONE Gas issues $375M 5.45% Senior Notes due 2036; proceeds to repay debt

## Summary
- Issued $375M aggregate principal of 5.45% Senior Notes due 2036; offering closed Aug 13, 2026.
- Net proceeds to repay $250M unsecured term loan and outstanding commercial paper, plus general corporate purposes.
- Underwriting agreement with BofA Securities, RBC Capital Markets, and Truist Securities as representatives.
- Notes governed by new indenture with U.S. Bank Trust Company as trustee; registered on Form S-3 shelf.

## SEC filing metadata
- accession: 0001193125-26-349155
- form_type: 8-K
- ticker: OGS
- cik: 0001587732
- company_name: ONE Gas, Inc.
- filed_at: 2026-08-13T20:06:07+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1587732/000119312526349155/0001193125-26-349155-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1587732/000119312526349155/d152660d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-349155
- JSON: https://secwatch.observer/filing/0001193125-26-349155.json
- Plain text: https://secwatch.observer/filing/0001193125-26-349155.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.