401(k) · DOL Form 5500 · 2024

Oneok, Inc. 401(k) Plan

Data updated 2026-08-25

$1.4B
Total assets Very large vs avg
4,756
Participants Above avg headcount
99th
Percentile by assets National rank
$297,622
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

$1.4B in assets, 4,756 participants

Oneok, Inc.'s Oneok, Inc. 401(k) Plan reported $1.4B in total assets and 4,756 participants in its 2024 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.

  • #3,236 in Transportation & Warehousing (3,299 peers)

Coverage in Oklahoma

Oneok, Inc. 401(k) Plan covers 4,756 participants in Oklahoma, 6.3x the typical Oklahoma plan (state average ~760 per filing). Assets: $1.4B.

#3,236
in Transportation & Warehousing (3,299 peers)
+22.4%
assets growth YoY
14×
vs typical plan assets (national mean)

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 2024 · DOL Form 5500

$1,415,489,000 Top 1% higher than 99% of 123,620 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 2024

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

Plan-year 2024 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 (4,756 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Oneok, Inc. 401(k) Plan reported participants rose from 2,965 in the plan year 2023 filing to 4,756 in the plan year 2024 filing.
  • Oneok, Inc. 401(k) Plan reported net income fell from $386M in the plan year 2023 filing to $259M in the plan year 2024 filing.
  • Oneok, Inc. 401(k) Plan end-of-year assets rose from $1.2B in the plan year 2023 filing to $1.4B in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 731520922 · Oneok, Inc. PY 2024 · 401(k)

Oneok, Inc. 401(k) Plan · $1.4B · 4,756 · 99th

  • TYPE $1.4B
  • TYPE 4,756
  • TYPE 99th
  • TYPE 401(k)
  • TYPE near D.R. Horton, Inc. Profit Sharing Plus Plan
  • TYPE ind #3236

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

Oneok, Inc. 401(k) Plan$1.4BD.R. Horton, Inc. Profit Sharing Plus PlanD.R. Horton, Inc. Profit Sha…$1.4BSkywest, Inc. Employees' Retirement PlanSkywest, Inc. Employees' Ret…$1.4BCbiz, Inc. Retirement Savings PlanCbiz, Inc. Retirement Saving…$1.4BBaystate Health, Inc Retirement PlanBaystate Health, Inc Retirem…$1.4B
End-of-year total assets ($B) among Oneok, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Oklahoma filing particulars

Total Assets (Beginning of Year)$1.2B
Net Assets (End of Year)$1.4B
Net Income$259M
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 0123456 Total assets ($B) Participants Oneok, Inc. 401(k) Plan, Total assets ($B): 1.415489 · Participants: 4756Oneok, Inc. 401(k) PlanQuiktrip Corporation Retirement Plan, Total assets ($B): 4.827423826 · Participants: 13369Quiktrip Corporation Retirement PlanThe Williams Investment Plus Plan, Total assets ($B): 1.978642425 · Participants: 5204The Williams Investment Plus PlanBok Financial 401(k) Plan, Total assets ($B): 1.190240873 · Participants: 4907Bok Financial 401(k) PlanDevon Energy Corporation Incentive Savings Plan, Total assets ($B): 1.073833495 · Participants: 1958Devon Energy Corporation Incentive Savings PlanSaint Francis Health System, Inc. 401(k) Savings P, Total assets ($B): 1.005826659 · Participants: 10537Saint Francis Health System, Inc. 401(k) Savings P
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 D.R. Horton, Inc. Profit Sharing Plus Plan in TX ($1.4B); by covered participants it is J & J Snack Foods Corp. 401(k) Profit Sharing Plan in NJ (4,763 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.4B here).

Similar participant headcount

Nearest other-state filings by covered participants (4,756 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. 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 2024? ▼
Oneok, Inc. 401(k) Plan grew sharply - up 22.4% during 2024, from $1.2B to $1.4B. Reported net income was $259M.
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 123,622 plans that reported assets for plan year 2024 (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 D.R. Horton, Inc. Profit Sharing Plus Plan in TX ($1.4B, 12,400 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 J & J Snack Foods Corp. 401(k) Profit Sharing Plan in NJ (4,763 participants, $176M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.