ONE Gas, Inc. number of employees

ONE Gas, Inc. reported 4,000 employees at December 31, 2025 in its latest annual report.

Headcount by year

Fiscal year end	Employees	Change	Revenue per employee	Source
December 31, 2025	4,000	—	—	10-K, filed February 19, 2026

What the annual reports say

Employment - We employed approximately 4,000 people on February 1, 2026, including approximately 700 people at Kansas Gas Service who are subject to collective bargaining agreements. 2025 annual report

Headcount as the company states it in Item 1 of its annual report (some count full-time equivalents or exclude part-time and temporary staff), at the date it gives. Years where the report states no clear total are left out rather than estimated. Changes can reflect acquisitions and disposals as well as hiring and job cuts.

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Figures from ONE Gas, Inc.'s SEC filings (10-K and 10-Q). How we read and check them: methodology and data sources. Not investment advice. Back to ONE Gas, Inc.