Profit Sharing · DOL Form 5500 · 2023

One Gas, Inc. 401(k) Plan

Data updated 2026-07-24

$864M
Total assets
3,716
Participants
98th
Percentile by assets
$232,450
Avg per participant

Sponsored by One Gas, Inc. · Oklahoma · Utilities

One Gas, Inc.'s One Gas, Inc. 401(k) Plan reported $864M in total assets and 3,716 participants in its 2023 DOL Form 5500 filing, ranking in the 98th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

What the 2023 filing shows

One Gas, Inc. 401(k) Plan holds $864M for 3,716 participants - about $232,450 per participant, in the top 5% of all filed plans by assets, up 11.6% over the 2023 plan year.

$864M
total plan assets (2023 EOY)
3,716
covered participants
98th
percentile by assets (of 126,618 plans)
$232,450
avg assets per participant
State
Industry
Utilities

Profit Sharing · DOL Form 5500 · 2023

What the Filing Says About One Gas, Inc. 401(k) Plan

One Gas, Inc. 401(k) Plan is a Profit Sharing retirement plan sponsored by One Gas, Inc., headquartered in Oklahoma. According to the U.S. Department of Labor's 2023 Form 5500 filing, the plan reports $864M in total end-of-year assets and covers 3,716 participants across the Utilities industry. The sponsor's EIN on file with the U.S. Department of Labor is 463561936, and the plan has been effective since 2014-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets grew at a solid clip from $774M at the beginning of 2023 to $864M at year-end - up 11.6%. Net assets (after liabilities) closed the year at $864M, with reported net income of $90M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Across the 3 plan years One Gas, Inc. has on file with PlainRetire (2022-2024), sponsor-wide plan assets have moved from $1.5B to $1.7B, a gain of 9.8%, while reported participants moved from 4,426 to 4,530 (+2.3%). The strongest year on file by total sponsor assets was 2024 at $1.7B; the softest was 2022 at $1.5B. Year-by-year, sponsor-wide filings show: 2022 - $1.5B in assets across 2 plans covering 4,426 participants; 2023 - $1.7B in assets across 2 plans covering 4,456 participants; 2024 - $1.7B in assets across 2 plans covering 4,530 participants.

By assets, One Gas, Inc. 401(k) Plan outranks 98% of the 126,618 plans that filed a Form 5500 for the 2023 plan year, and holds roughly 8.6x the national average plan size of $100M and 730 average participants.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows, a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

How the percentile is calculated: we count every plan that filed a 2023 Form 5500 with a reported end-of-year asset figure (126,618 plans), rank One Gas, Inc. 401(k) Plan against all of them by total assets, and report the share of those plans it outranks. A plan reporting no asset figure for the year is excluded from the ranking rather than assumed to be zero.

Financial Summary (2023)

Total Assets (Beginning of Year)$774M
Total Assets (End of Year)$864M
Net Assets (End of Year)$864M
Net Income$90M
Plan TypeProfit Sharing
Employer EIN463561936
Plan Effective Date2014-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (One Gas, Inc.)

$1.5B$1.55B$1.6B$1.65B$1.7B$1.75B 202220232024 $1.54B $1.69B ▲ +9.7%
Total plan assets by year, all One Gas, Inc. 401(k) plans on file
Year Plans Participants Total Assets
2022 2 4,426 $1.5B
2023 2 4,456 $1.7B
2024 2 4,530 $1.7B

Nearby Profit Sharing Plans in Oklahoma

Peer Profit Sharing plans, same state, same plan type, ranked by total assets.

One Gas, Inc. 401(k) Plan vs. nearby Profit Sharing plans in Oklahoma, assets vs. participants

One Gas, Inc. 401(k) Plan vs. nearby Profit Sharing plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. 02000400060008000 2004006008001000 Total assets ($M) Participants One Gas, Inc. 401(k)…Devon Energy Corpora…Oge Energy Corp. Emp…The University of Tu…Cherokee Nation Busi…Saint Francis Health…
One Gas, Inc. 401(k) Plan vs. nearby Profit Sharing plans in Oklahoma, assets vs. participants

Frequently Asked Questions

How much money is in the One Gas, Inc. 401(k) Plan?
As of the 2023 Form 5500 filing, One Gas, Inc. 401(k) Plan holds $864M in total assets with 3,716 participants. It is sponsored by One Gas, Inc..
What type of plan is One Gas, Inc. 401(k) Plan?
One Gas, Inc. 401(k) Plan is a Profit Sharing plan. It has been effective since 2014-01-01. The plan is filed with the U.S. Department of Labor under EIN 463561936.
Who sponsors the One Gas, Inc. 401(k) Plan?
One Gas, Inc. 401(k) Plan is sponsored by One Gas, Inc., located in Oklahoma. The sponsor's EIN is 463561936 and the plan operates in the Utilities industry.
How did One Gas, Inc. 401(k) Plan perform in 2023?
One Gas, Inc. 401(k) Plan grew at a solid clip - up 11.6% during 2023, moving from $774M to $864M in total assets. Net income was $90M.

What this filing means

Ways to act on One Gas, Inc. 401(k) Plan's numbers.

  • By total assets, One Gas, Inc. 401(k) Plan ranks in the top 5% of all filed plans by assets. See the largest plans
  • Compare it side-by-side against 3 similar Profit Sharing plans in Oklahoma. Compare plans
  • One Gas, Inc.'s sponsor-wide assets have grown 9.8% since 2022 across 3 plan years on file. More Utilities plans
  • A Profit Sharing plan works differently from other retirement plan types, understand the structural differences before comparing. Compare plan types

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 463561936.

Reference: IRS Publication 560, Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B, Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.

Every figure on PlainRetire is rendered directly from the Department of Labor's Form 5500 annual return filings, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-07-24.