401(k) · DOL Form 5500 · 2022

Oneok, Inc. 401(k) Plan

Data updated 2026-08-25

$770M
Total assets Above avg plan size
2,835
Participants Above avg headcount
99th
Percentile by assets National rank
$271,755
Avg per participant High balance/head
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Official DOL plan name: Oneok, Inc. 401(k) Plan · Sponsored by Oneok, Inc. · Oklahoma · Transportation & Warehousing

$770M in assets, 2,835 participants

Oneok, Inc.'s Oneok, Inc. 401(k) Plan reported $770M in total assets and 2,835 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.

  • #3,797 in Transportation & Warehousing (3,876 peers)

Coverage in Oklahoma

Oneok, Inc. 401(k) Plan covers 2,835 participants in Oklahoma, 3.7x the typical Oklahoma plan (state average ~760 per filing). Assets: $770M.

#3,797
in Transportation & Warehousing (3,876 peers)
-9.3%
assets change YoY
7.7×
vs typical plan assets (national mean)

The plan reported a net loss of $79M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

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

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

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

$770,426,000 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

Oneok, 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. Oneok, Inc. 401(k) Plan lands in the large band (2,835 participants).

EBSA filing schedule strip

Filing strip 731520922 · Oneok, Inc. PY 2022 · 401(k)

Oneok, Inc. 401(k) Plan · $770M · 2,835 · 99th

  • EBSA $770M
  • PART 2,835
  • TYPE 99th
  • NET 401(k)
  • BOOK near Acna 401 (K) Plan
  • VS-ST ind #3797

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 Transportation & Warehousing retirement plans → · Plans in Oklahoma →

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

Wawa, Inc. 401(k) Plan$773MOneok, Inc. 401(k) Plan$770MAcna 401 (K) Plan$769MClark Group Retirement Plan$769MThe Lonza US Savings Plan$769M
End-of-year total assets ($M) among Oneok, 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)$850M
Net Assets (End of Year)$770M
Net Income-$79M
Employer EIN731520922
Plan Effective Date1956-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Oneok, Inc.)

Sponsor-wide plan assets over time

All Oneok, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$1.8B 60.38217715343218% vs 2022
2024 filing year
$1B$1.2B$1.4B$1.6B$1.8B$2B 202220232024 $1.09B $1.75B ▲ +60.6%
Year Plans Participants Total Assets
2022 2 3,109 $1.1B
2023 2 3,195 $1.5B
2024 2 4,948 $1.8B

Nearby 401(k) Plans in Oklahoma

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

Oneok, Inc. 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. 050001000015000 01234 Total assets ($B) Participants Oneok, Inc. 401(k) Plan, Total assets ($B): 0.770426 · Participants: 2835Oneok, 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 PlanOne Gas, Inc. 401(k) Plan, Total assets ($B): 0.774155 · Participants: 3586One Gas, Inc. 401(k) Plan
Oneok, Inc. 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants
Compare Oneok, Inc. 401(k) Plan side-by-side with 3 peers →

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

Outside Oklahoma, the nearest 401(k) by assets is Acna 401 (K) Plan in NJ ($769M); by covered participants it is Pinnacle Property Management Services, LLC 401(k) Plan in TX (2,836 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($770M here).

Similar participant headcount

Nearest other-state filings by covered participants (2,835 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 Oneok, Inc. 401(k) Plan assets move in 2022? ▼
Oneok, Inc. 401(k) Plan pulled back noticeably - down 9.3% during 2022, from $850M to $770M. Reported net income was -$79M.
How have Oneok, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Oneok, Inc.'s sponsor-wide assets grew 60.4%, from $1.1B to $1.8B.
Where does Oneok, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Oneok, 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 Oneok, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Acna 401 (K) Plan in NJ ($769M, 4,184 participants).
Which 401(k) plans cover a similar participant headcount to Oneok, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Pinnacle Property Management Services, LLC 401(k) Plan in TX (2,836 participants, N/A 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 731520922.

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.