401(k) · DOL Form 5500 · 2022
Mdu Resources Group, Inc. 401(k) Plan
Data updated 2026-08-25
- $1.3B
- Total assets Very large vs avg
- 8,525
- Participants Very large workforce
- 99th
- Percentile by assets National rank
- $154,987
- Avg per participant Above avg balance/head
Official DOL plan name: Mdu Resources Group, Inc. 401(k) Retirement Plan · Sponsored by Mdu Resources Group, Inc. · North Dakota · Utilities
$1.3B in assets, 8,525 participants
Mdu Resources Group, Inc.'s Mdu Resources Group, Inc. 401(k) Retirement Plan reported $1.3B in total assets and 8,525 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.
- #679 in Utilities (738 peers)
Coverage in North Dakota
Mdu Resources Group, Inc. 401(k) Retirement Plan covers 8,525 participants in North Dakota, 17x the typical North Dakota plan (state average ~504 per filing). Assets: $1.3B.
- #679
- in Utilities (738 peers)
- -14.7%
- assets change YoY
- 13×
- vs typical plan assets (national mean)
The plan reported a net loss of $227M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Mdu Resources Group, Inc. 401(k) Retirement Plan's outsized position by total assets
Mdu Resources Group, Inc. 401(k) Retirement Plan vs every filed plan by assets
End-of-year total assets · plan year 2022 · DOL Form 5500
$1,321,268,405 Top 1% higher than 99% of 139,123 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022
Mdu Resources Group, Inc. 401(k) Retirement 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. Mdu Resources Group, Inc. 401(k) Retirement Plan lands in the large band (8,525 participants).
Plan-year Form 5500 strip
Filing strip 301133956 · Mdu Resources Group, Inc. PY 2022 · 401(k)
Mdu Resources Group, Inc. 401(k) Retirement Plan · $1.3B · 8,525 · 99th
- EIN $1.3B
- RANK 8,525
- PHOTO 99th
- IND 401(k)
- EOY near Cleveland-Cliffs Steel LLC Hourly 401(k) Plan
- 5500 ind #679
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 North Dakota →
Mdu Resources Group, Inc. 401(k) Retirement Plan in the asset neighbourhood
North Dakota filing particulars
| Total Assets (Beginning of Year) | $1.5B |
|---|---|
| Net Assets (End of Year) | $1.3B |
| Net Income | -$227M |
| Employer EIN | 301133956 |
| Plan Effective Date | 1984-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Mdu Resources Group, Inc.)
Sponsor-wide plan assets over time
All Mdu Resources Group, Inc. plans reported in each filing year
- Latest sponsor-wide plan assets
- $865M 39.040889270814255% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 2 | 8,676 | $1.4B |
| 2023 | 2 | 8,688 | $928M |
| 2024 | 2 | 3,583 | $865M |
Nearby 401(k) Plans in North Dakota
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- Sanford Retirement Savings Plan $2.4B · 30,145
- Dakotas Areawide IBEW-NECA Savings and Retirement Plan $446M · 3,784
- Eide Bailly LLP 401(k) Profit Sharing Plan $411M · 2,612
- Offutt Companies 401(k) Savings Plan $403M · 5,088
- Altru Health System Retirement Savings Plan 401(k) $399M · 3,100
Scale composition for Mdu Resources Group, Inc. 401(k) Retirement Plan
Mdu Resources Group, Inc. 401(k) Retirement Plan reports $1.3B in end-of-year assets across 8,525 participants (0.011% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $154,987 per participant (1.1x the national average assets-per-participant) . Net income for plan year 2022 was -$227M.
This plan identity (EIN 301133956, plan #004) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.3B to $776M (-41.3%) while covered participants moved from 8,525 to 3,465 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 8,525 | $1.3B | This page |
| 2023 | 8,551 | $830M | Open filing |
| 2024 · index core | 3,465 | $776M | Open filing |
The same sponsor also keeps 1 other index-core plan on PlainRetire:
- Mdu Resources Group, Inc. 401(k) Retirement Plan (401(k), $776M, 3,465 participants)
Mdu Resources Group, Inc. 401(k) Retirement Plan's out-of-state 401(k) peers by assets and headcount
Outside North Dakota, the nearest 401(k) by assets is Cleveland-Cliffs Steel LLC Hourly 401(k) Plan in IL ($1.3B); by covered participants it is Gerber Collision & Glass 401(k) Plan in IL (8,519 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($1.3B here).
- Cleveland-Cliffs Steel LLC Hourly 401(k) Plan (IL) $1.3B · 12,117
- The Toro Company Retirement Plan (MN) $1.3B · 6,954
- Holland and Knight Profit Sharing Plan & Trust (FL) $1.3B · 2,800
- Jm Family Associates' Profit Sharing and 401(k) Plan (FL) $1.3B · 4,189
Similar participant headcount
Nearest other-state filings by covered participants (8,525 participants); asset peers above are excluded.
- Gerber Collision & Glass 401(k) Plan (IL) 8,519 · 6 off
- Accor 401(k) Plan () 8,533 · 8 off
- Triad 401(k) Retirement Plan (NM) 8,535 · 10 off
- Ihg 401(k) Savings and Retirement Plan (GA) 8,515 · 10 off
DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.