One Gas, Inc.401(k)
ONE GAS, INC. 401(K) PLAN · TULSA, OK · plan year 2025
One Gas, Inc.'s 2025 Form 5500 did not separately report plan administrative expenses, which is common where recordkeeping is paid through investment revenue-sharing or a master trust. The plan held $1,036,864,000 across 4,598 participant accounts, with employer contributions averaging $8,416 per active participant. See methodology for what Form 5500 does and doesn't capture.
The plan sits in the over $1B size bracket, benchmarked here against 141 comparable plans and shown alongside other utilities employers. By assets it is the 7th-largest of 724 plans among Oklahoma employers on file, and the 43rd of 412 in utilities. In 2025, the employer put in $1.10 for every $1.00 employees contributed themselves.
One Gas, Inc.'s 2025 employer contribution ran above the $5,084 median for plans its size, placing it in the top quarter of its peers. Filings report dollars actually contributed, not the match formula; the formula itself (for example, 50% of the first 6% of pay) lives in the plan's summary plan description from HR.
Compensation shown is direct payments from plan assets reported on Schedule C. Providers paid through fund revenue-sharing appear as indirect.
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Source: U.S. Department of Labor, Form 5500 series, EIN 463561936 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.