Defined Benefit (Pension) · DOL Form 5500 · 2022

One Gas, Inc Pension Plan

Data updated 2026-08-25

$769M
Total assets Above avg plan size
840
Participants Near avg headcount
99th
Percentile by assets National rank
$915,731
Avg per participant High balance/head
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Official DOL plan name: One Gas, Inc. Retirement Plan · Sponsored by One Gas, Inc · Oklahoma · Utilities

$769M in assets, 840 participants

One Gas, Inc's One Gas, Inc. Retirement Plan reported $769M in total assets and 840 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.

  • #641 in Utilities (738 peers)

Where One Gas, Inc. Retirement Plan sits by assets

One Gas, Inc. Retirement Plan sits among the largest 1% of all filed plans, $769M for 840 participants (~$915,731/participant), down 24.3% in 2022.

#641
in Utilities (738 peers)
-24.3%
assets change YoY
7.7×
vs typical plan assets (national mean)

The plan reported a net loss of $246M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

One Gas, Inc. Retirement Plan's outsized position by total assets

One Gas, Inc. Retirement Plan vs every filed plan by assets

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

$769,214,000 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. Retirement Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. One Gas, Inc. Retirement Plan sits mid-pack in the medium band (840 participants).

EBSA filing schedule strip

Filing strip 463561936 · One Gas, Inc PY 2022 · Defined Benefit (Pension)

One Gas, Inc. Retirement Plan · $769M · 840 · 99th

  • RANK $769M
  • PHOTO 840
  • IND 99th
  • EOY Defined Benefit (Pension)
  • 5500 near The 2017 Employees' Pension Plan of Battelle Memorial Institute
  • ASSETS ind #641

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. Retirement Plan in the asset neighbourhood

Laborers Pension Trust Fund - Detroit and VicinityLaborers Pension Trust Fund …$771MSuburban Teamsters of Northern Illinois Pension PlanSuburban Teamsters of Northe…$771MOne Gas, Inc. Retirement Plan$769MThe 2017 Employees' Pension Plan of Battelle Memorial InstituteThe 2017 Employees' Pension …$769MLegacy Health Employees Retirement PlanLegacy Health Employees Reti…$769M
End-of-year total assets ($M) among One Gas, Inc. Retirement Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$1.0B
Net Assets (End of Year)$769M
Net Income-$246M
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 Defined Benefit (Pension) Plans in Oklahoma

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

One Gas, Inc. Retirement Plan vs. nearby Defined Benefit (Pension) plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. -1000010002000300040005000 00.511.5 Total assets ($B) Participants One Gas, Inc. Retirement Plan, Total assets ($B): 0.769214 · Participants: 840One Gas, Inc. Retirement PlanPipeline Industry Pension Fund, Total assets ($B): 1.395037836 · Participants: 2848Pipeline Industry Pension FundWilliams Pension Plan, Total assets ($B): 0.879100125 · Participants: 3868Williams Pension PlanRetirement Plan for Employees of Devon Energy Corporation, Total assets ($B): 0.482103125 · Participants: 181Retirement Plan for Employees of Devon Energy CorporationIntegris Health, Inc. Retirement Plan a, Total assets ($B): 0.407764144 · Participants: 1297Integris Health, Inc. Retirement Plan aWilliams Inactive Employees Pension Plan, Total assets ($B): 0.393227064 · Participants: 0Williams Inactive Employees Pension Plan
One Gas, Inc. Retirement Plan vs. nearby Defined Benefit (Pension) plans in Oklahoma, assets vs. participants
Compare One Gas, Inc. Retirement Plan side-by-side with 3 peers →

One Gas, Inc. Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Oklahoma, the nearest Defined Benefit (Pension) by assets is The 2017 Employees' Pension Plan of Battelle Memorial Institute in OH ($769M); by covered participants it is Kemper Corporation Pension Plan in IL (839 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (840 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. Retirement Plan assets move in 2022? ▼
One Gas, Inc. Retirement Plan declined sharply - down 24.3% during 2022, from $1.0B to $769M. Reported net income was -$246M.
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. Retirement Plan rank by assets among Form 5500 filers? ▼
One Gas, Inc. Retirement 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 Defined Benefit (Pension) plans are similar in size to One Gas, Inc. Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is The 2017 Employees' Pension Plan of Battelle Memorial Institute in OH ($769M, 1,221 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to One Gas, Inc. Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Kemper Corporation Pension Plan in IL (839 participants, $316M 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.