401(k) · DOL Form 5500 · 2022

One Gas, Inc. 401(k) Plan

Data updated 2026-08-25

$774M
Total assets Above avg plan size
3,586
Participants Above avg headcount
99th
Percentile by assets National rank
$215,883
Avg per participant Above avg balance/head
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Official DOL plan name: One Gas, Inc. 401(k) Plan · Sponsored by One Gas, Inc. · Oklahoma · Utilities

$774M in assets, 3,586 participants

One Gas, Inc.'s One Gas, Inc. 401(k) Plan reported $774M in total assets and 3,586 participants in its 2022 DOL Form 5500 filing, ranking in the 99th 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.

  • #642 in Utilities (738 peers)

Coverage in Oklahoma

One Gas, Inc. 401(k) Plan covers 3,586 participants in Oklahoma, 4.7x the typical Oklahoma plan (state average ~760 per filing). Assets: $774M.

#642
in Utilities (738 peers)
-14.7%
assets change YoY
7.8×
vs typical plan assets (national mean)

The plan reported a net loss of $134M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

One Gas, Inc. 401(k) Plan's outsized position by total assets

One Gas, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$774,155,000 Top 1% higher than 99% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

One Gas, Inc. 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. One Gas, Inc. 401(k) Plan lands in the large band (3,586 participants).

DOL schedule card

Filing strip 463561936 · One Gas, Inc. PY 2022 · 401(k)

One Gas, Inc. 401(k) Plan · $774M · 3,586 · 99th

  • BOOK $774M
  • VS-ST 3,586
  • BOY 99th
  • SCH 401(k)
  • EBSA near Sequoia One 401(k) Plan
  • PART ind #642

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Utilities retirement plans → · Plans in Oklahoma →

One Gas, Inc. 401(k) Plan in the asset neighbourhood

Vertiv Group Corporation Employee Retirement Savings PlanVertiv Group Corporation Emp…$775MOne Gas, Inc. 401(k) Plan$774MSequoia One 401(k) Plan$774MCobham United States 401(k) PlanCobham United States 401(k) …$774MWawa, Inc. 401(k) Plan$773M
End-of-year total assets ($M) among One Gas, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Oklahoma filing particulars

Total Assets (Beginning of Year)$908M
Net Assets (End of Year)$774M
Net Income-$134M
Employer EIN463561936
Plan Effective Date2014-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (One Gas, Inc.)

Sponsor-wide plan assets over time

All One Gas, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$1.7B 9.763316484910609% vs 2022
2024 filing year
$1.5B$1.55B$1.6B$1.65B$1.7B$1.75B 202220232024 $1.54B $1.69B ▲ +9.7%
Year Plans Participants Total Assets
2022 2 4,426 $1.5B
2023 2 4,456 $1.7B
2024 2 4,530 $1.7B

Nearby 401(k) Plans in Oklahoma

Peer 401(k) plans, same state, same plan type, ranked by total assets.

One Gas, Inc. 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. 050001000015000 01234 Total assets ($B) Participants One Gas, Inc. 401(k) Plan, Total assets ($B): 0.774155 · Participants: 3586One Gas, Inc. 401(k) PlanQuiktrip Corporation Retirement Plan, Total assets ($B): 3.683382046 · Participants: 10862Quiktrip Corporation Retirement PlanThe Williams Investment Plus Plan, Total assets ($B): 1.385802682 · Participants: 4848The Williams Investment Plus PlanBok Financial 401(k) Plan, Total assets ($B): 0.917245856 · Participants: 4683Bok Financial 401(k) PlanDevon Energy Corporation Incentive Savings Plan, Total assets ($B): 0.791750265 · Participants: 1642Devon Energy Corporation Incentive Savings PlanOneok, Inc. 401(k) Plan, Total assets ($B): 0.770426 · Participants: 2835Oneok, Inc. 401(k) Plan
One Gas, Inc. 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants
Compare One Gas, Inc. 401(k) Plan side-by-side with 3 peers →

One Gas, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Oklahoma, the nearest 401(k) by assets is Sequoia One 401(k) Plan in AZ ($774M); by covered participants it is Tribal Casino Gaming Enterprise 401(k) Savings Plan in NC (3,586 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($774M here).

Similar participant headcount

Nearest other-state filings by covered participants (3,586 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did One Gas, Inc. 401(k) Plan assets move in 2022? ▼
One Gas, Inc. 401(k) Plan pulled back noticeably - down 14.7% during 2022, from $908M to $774M. Reported net income was -$134M.
How have One Gas, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), One Gas, Inc.'s sponsor-wide assets grew 9.8%, from $1.5B to $1.7B.
Where does One Gas, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
One Gas, Inc. 401(k) Plan ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to One Gas, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Sequoia One 401(k) Plan in AZ ($774M, 28,059 participants).
Which 401(k) plans cover a similar participant headcount to One Gas, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Tribal Casino Gaming Enterprise 401(k) Savings Plan in NC (3,586 participants, $118M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

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

Read our methodology - how this data is sourced, computed, and verified.

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