401(k) · DOL Form 5500 · 2024

Mack Energy Corporation 401(k) Plan

Data updated 2026-08-25

$64M
Total assets Below avg plan size
93
Participants Small participant base
87th
Percentile by assets National rank
$689,177
Avg per participant High balance/head
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Official DOL plan name: Mack Energy Corporation 401(k) Plan · Sponsored by Mack Energy Corporation · New Mexico · Mining & Oil Extraction

$64M in assets, 93 participants

Mack Energy Corporation's Mack Energy Corporation 401(k) Plan reported $64M in total assets and 93 participants in its 2024 DOL Form 5500 filing, ranking in the 87th 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.

  • #592 in Mining & Oil Extraction (785 peers)

Where Mack Energy Corporation 401(k) Plan sits by assets

Mack Energy Corporation 401(k) Plan sits in the top quartile of all filed plans by assets, $64M for 93 participants (~$689,177/participant), up 12.2% in 2024.

#592
in Mining & Oil Extraction (785 peers)
+12.2%
assets growth YoY
0.6×
vs typical plan assets (national mean)

Mack Energy Corporation 401(k) Plan's outsized position by total assets

Mack Energy Corporation 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$64,093,457 Top 13% higher than 87% 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

Mack Energy Corporation 401(k) Plan among smaller filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mack Energy Corporation 401(k) Plan is a small filing (93 participants) on this national headcount ladder.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mack Energy Corporation 401(k) Plan reported participants fell from 108 in the plan year 2023 filing to 93 in the plan year 2024 filing.
  • Mack Energy Corporation 401(k) Plan end-of-year assets rose from $57M in the plan year 2023 filing to $64M in the plan year 2024 filing.
  • Mack Energy Corporation 401(k) Plan reported net income fell from $7M in the plan year 2023 filing to $7M in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 850381433 · Mack Energy Corporation PY 2024 · 401(k)

Mack Energy Corporation 401(k) Plan · $64M · 93 · 87th

  • EBSA $64M
  • EBSA 93
  • EBSA 87th
  • EBSA 401(k)
  • EBSA near Environmental Systems Design, Inc. Employees 401(k) Plan
  • EBSA ind #592

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 Mining & Oil Extraction retirement plans → · Plans in New Mexico →

Mack Energy Corporation 401(k) Plan in the asset neighbourhood

Environmental Systems Design, Inc. Employees 401(k) PlanEnvironmental Systems Design…$64MMack Energy Corporation 401(k) PlanMack Energy Corporation 401(…$64MDayton T. Brown, Inc. Profit Sharing Pension PlanDayton T. Brown, Inc. Profit…$64MDovenmuehle Mortgage, Inc. Savings and Retirement PlanDovenmuehle Mortgage, Inc. S…$64MAustrian Motors Corp. 401(k) Profit-Sharing PlanAustrian Motors Corp. 401(k)…$64M
End-of-year total assets ($M) among Mack Energy Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$57M
Net Assets (End of Year)$64M
Net Income$7M
Employer EIN850381433
Plan Effective Date2000-02-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mack Energy Corporation)

Sponsor-wide plan assets over time

All Mack Energy Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$115M 28.635075367043576% vs 2022
2024 filing year
$80M$90M$100M$110M$120M 202220232024 $89.2M $115M ▲ +28.6%
Year Plans Participants Total Assets
2022 2 218 $89M
2023 2 214 $102M
2024 2 186 $115M

Nearby 401(k) Plans in New Mexico

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

Mack Energy Corporation 401(k) Plan vs. nearby 401(k) plans in New Mexico, assets vs. participants Scatter plot of 6 data points. -500005000100001500020000 -202468 Total assets ($B) Participants Mack Energy Corporation 401(k) Plan, Total assets ($B): 0.064093457 · Participants: 93Mack Energy Corporation 401(k) PlanNtess Savings and Income Plan, Total assets ($B): 7.248575896 · Participants: 15926Ntess Savings and Income PlanTriad 401(k) Retirement Plan, Total assets ($B): 2.492057254 · Participants: 11744Triad 401(k) Retirement PlanTriad 401(k) Savings Plan, Total assets ($B): 0.899933857 · Participants: 2058Triad 401(k) Savings PlanTxnm Energy, Inc. Retirement Savings Plan, Total assets ($B): 0.826572097 · Participants: 1631Txnm Energy, Inc. Retirement Savings PlanApplied Research Associates, Inc. 401(k) Profit Sharing Plan & Trust, Total assets ($B): 0.647938985 · Participants: 2218Applied Research Associates, Inc. 401(k) Profit Sharing Plan & Trust
Mack Energy Corporation 401(k) Plan vs. nearby 401(k) plans in New Mexico, assets vs. participants
Compare Mack Energy Corporation 401(k) Plan side-by-side with 3 peers →

Mack Energy Corporation 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside New Mexico, the nearest 401(k) by assets is Environmental Systems Design, Inc. Employees 401(k) Plan in IL ($64M); by covered participants it is Burns Pest Elimination, Inc. 401(k) Plan in AZ (93 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (93 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 Mack Energy Corporation 401(k) Plan assets move in 2024? ▼
Mack Energy Corporation 401(k) Plan grew at a solid clip - up 12.2% during 2024, from $57M to $64M. Reported net income was $7M.
How have Mack Energy Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mack Energy Corporation's sponsor-wide assets grew 28.6%, from $89M to $115M.
Where does Mack Energy Corporation 401(k) Plan rank by assets among Form 5500 filers? ▼
Mack Energy Corporation 401(k) Plan ranks in the 87th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Mack Energy Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Environmental Systems Design, Inc. Employees 401(k) Plan in IL ($64M, 250 participants).
Which 401(k) plans cover a similar participant headcount to Mack Energy Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Burns Pest Elimination, Inc. 401(k) Plan in AZ (93 participants, $2M 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 850381433.

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.