401(k) · DOL Form 5500 · 2022

Mack Energy Corporation 401(k) Plan

Data updated 2026-08-25

$50M
Total assets Below avg plan size
111
Participants Small participant base
88th
Percentile by assets National rank
$448,581
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Mack Energy Corporation 401(k) Plan · Sponsored by Mack Energy Corporation · New Mexico · Mining & Oil Extraction

$50M in assets, 111 participants

Mack Energy Corporation's Mack Energy Corporation 401(k) Plan reported $50M in total assets and 111 participants in its 2022 DOL Form 5500 filing, ranking in the 88th 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.

  • #689 in Mining & Oil Extraction (892 peers)

Coverage in New Mexico

Mack Energy Corporation 401(k) Plan covers 111 participants in New Mexico, about 30% of the average New Mexico filer (state average ~365 per filing). Assets: $50M.

#689
in Mining & Oil Extraction (892 peers)
-15.7%
assets change YoY
0.5×
vs typical plan assets (national mean)

The plan reported a net loss of $9M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

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 2022 · DOL Form 5500

$49,792,493 Top 12% higher than 88% 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

Mack Energy Corporation 401(k) 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. Mack Energy Corporation 401(k) Plan sits mid-pack in the medium band (111 participants).

DOL schedule card

Filing strip 850381433 · Mack Energy Corporation PY 2022 · 401(k)

Mack Energy Corporation 401(k) Plan · $50M · 111 · 88th

  • RANK $50M
  • PHOTO 111
  • IND 88th
  • EOY 401(k)
  • 5500 near The Southern Devall Group 401(k) Plan
  • ASSETS ind #689

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

Blend Labs, Inc. 401(k) Plan$50MThe Southern Devall Group 401(k) PlanThe Southern Devall Group 40…$50MOrthoconnecticut, PC Employees' 401(k) Profit Sharing PlanOrthoconnecticut, PC Employe…$50MMack Energy Corporation 401(k) PlanMack Energy Corporation 401(…$50MRe/Spec Inc. Employee 401(k) Retirement PlanRe/Spec Inc. Employee 401(k)…$50M
End-of-year total assets ($M) among Mack Energy Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

New Mexico filing particulars

Total Assets (Beginning of Year)$59M
Net Assets (End of Year)$50M
Net Income-$9M
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. -5000050001000015000 -20246 Total assets ($B) Participants Mack Energy Corporation 401(k) Plan, Total assets ($B): 0.049792493 · Participants: 111Mack Energy Corporation 401(k) PlanNtess Savings and Income Plan, Total assets ($B): 5.039491778 · Participants: 14007Ntess Savings and Income PlanTriad 401(k) Retirement Plan, Total assets ($B): 1.548125595 · Participants: 8535Triad 401(k) Retirement PlanTriad 401(k) Savings Plan, Total assets ($B): 0.750238886 · Participants: 2476Triad 401(k) Savings PlanPnm Resources, Inc. Retirement Savings Plan, Total assets ($B): 0.707275306 · Participants: 1638Pnm Resources, Inc. Retirement Savings PlanApplied Research Associates, Inc. 401(k) Profit Sharing Plan & Trust, Total assets ($B): 0.445070272 · Participants: 1553Applied 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 The Southern Devall Group 401(k) Plan in TN ($50M); by covered participants it is Green Box Loans Inc, 401(k) Plan in CA (111 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (111 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 Mack Energy Corporation 401(k) Plan assets move in 2022? ▼
Mack Energy Corporation 401(k) Plan declined sharply - down 15.7% during 2022, from $59M to $50M. Reported net income was -$9M.
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 88th 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 Mack Energy Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is The Southern Devall Group 401(k) Plan in TN ($50M, 581 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 Green Box Loans Inc, 401(k) Plan in CA (111 participants, $192K 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 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.