401(k) · DOL Form 5500 · 2022

Mammoth Energy Partners LLC 401(k) Plan

Data updated 2026-08-25

$30M
Total assets Below avg plan size
827
Participants Near avg headcount
83rd
Percentile by assets National rank
$36,591
Avg per participant Low balance/head
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Official DOL plan name: Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust · Sponsored by Mammoth Energy Partners LLC · Oklahoma · Utilities

$30M in assets, 827 participants

Mammoth Energy Partners LLC's Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust reported $30M in total assets and 827 participants in its 2022 DOL Form 5500 filing, ranking in the 83rd 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.

  • #352 in Utilities (738 peers)

Utilities sector rank

Within Utilities, Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust ranks #352 of 738 2022 filers by assets (1774% of the sector average)-$30M for 827 participants.

#352
in Utilities (738 peers)
-11.5%
assets change YoY
0.3×
vs typical plan assets (national mean)

The plan reported a net loss of $4M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust's outsized position by total assets

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust vs every filed plan by assets

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

$30,261,058 Top 17% higher than 83% 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

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust 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. Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust sits mid-pack in the medium band (827 participants).

Form 5500 schedule snapshot

Filing strip 471902732 · Mammoth Energy Partners LLC PY 2022 · 401(k)

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust · $30M · 827 · 83rd

  • EOY $30M
  • EOY 827
  • EOY 83rd
  • EOY 401(k)
  • EOY near Bass Underwriters, Inc. 401(k) P.S. Plan
  • EOY ind #352

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 →

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust in the asset neighbourhood

Mammoth Energy Partners 401(k) Profit Sharing Plan and TrustMammoth Energy Partners 401(…$30MBass Underwriters, Inc. 401(k) P.S. PlanBass Underwriters, Inc. 401(…$30MIcapital Network, Inc 401(k) PlanIcapital Network, Inc 401(k)…$30MSorrento Therapeutics, Inc. 401(k) PlanSorrento Therapeutics, Inc. …$30MPac Worldwide Corporation 401(k) Profit Sharing PlanPac Worldwide Corporation 40…$30M
End-of-year total assets ($M) among Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Utilities filing particulars

Total Assets (Beginning of Year)$34M
Net Assets (End of Year)$30M
Net Income-$4M
Employer EIN471902732
Plan Effective Date2013-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mammoth Energy Partners LLC)

Sponsor-wide plan assets over time

All Mammoth Energy Partners LLC plans reported in each filing year

Latest sponsor-wide plan assets
$41M 34.5269421842422% vs 2022
2024 filing year
$25M$30M$35M$40M$45M 202220232024 $30.3M $40.7M ▲ +34.5%
Year Plans Participants Total Assets
2022 1 827 $30M
2023 1 1,094 $36M
2024 1 730 $41M

Nearby 401(k) Plans in Oklahoma

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

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust vs. nearby 401(k) plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. 050001000015000 -101234 Total assets ($B) Participants Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust, Total assets ($B): 0.030261058 · Participants: 827Mammoth Energy Partners 401(k) Profit Sharing Plan and TrustQuiktrip 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
Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust vs. nearby 401(k) plans in Oklahoma, assets vs. participants
Compare Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust side-by-side with 3 peers →

Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust's out-of-state 401(k) peers by assets and headcount

Outside Oklahoma, the nearest 401(k) by assets is Bass Underwriters, Inc. 401(k) P.S. Plan in FL ($30M); by covered participants it is Rehau Retirement Savings Plan in VA (827 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($30M here).

Similar participant headcount

Nearest other-state filings by covered participants (827 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 Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust assets move in 2022? ▼
Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust pulled back noticeably - down 11.5% during 2022, from $34M to $30M. Reported net income was -$4M.
How have Mammoth Energy Partners LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mammoth Energy Partners LLC's sponsor-wide assets grew 34.5%, from $30M to $41M.
Where does Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust rank by assets among Form 5500 filers? ▼
Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust ranks in the 83rd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust? ▼
Among 401(k) plans in other states, the closest by assets is Bass Underwriters, Inc. 401(k) P.S. Plan in FL ($30M, 422 participants).
Which 401(k) plans cover a similar participant headcount to Mammoth Energy Partners 401(k) Profit Sharing Plan and Trust? ▼
Among 401(k) plans in other states, the closest by covered participants is Rehau Retirement Savings Plan in VA (827 participants, $71M 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 471902732.

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.