Mdu Resources Group, Inc. 401(k) Review & Grade
Mdu Resources Group, Inc. 401(k) Retirement Plan
Bismarck, NDUtilities2,764 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$7,226Employer $ per active participant
$11,340Employee $ saved per active participant
0.07%Direct admin cost, % of plan assets
$775.6MNet plan assets, end of year
$305,455Average balance per account
Score breakdown
- Employer generosity28.4 / 5057th percentile for employer $ per participant
- Low cost16.7 / 2567th percentile for low admin cost vs. same-size plans
- Employee saving8.5 / 1557th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
Total score64 / 100 · Grade B
This plan vs. peers
Peers: Utilities plans with 2,500–9,999 active participants (38 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 57th |
| Lower admin cost | 67th |
| Employee saving | 57th |
| Peers that auto-enroll | 82% |
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Red flags from the filing
No red flags were reported on this filing's compliance questions.
What to do if you're in this plan
- Mdu Resources Group put in about $7,226 per active participant, more than the typical peer ($6,490). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- The plan auto-enrolls employees. Check your default contribution rate. Defaults are often lower than what it takes to get the full match.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $19,975,363 |
| Participant (employee) contributions | $31,349,734 |
| Other contributions (incl. rollovers in) | $4,701,038 |
| Administrative expenses paid from the plan | $592,317 |
| Contract administrator fees | $235,077 |
| Investment advisory & management fees | $263,423 |
| Benefits paid out | $98,314,102 |
| Net assets, start / end of year | $829.9M / $775.6M |
| Active participants, start / end of year | 3,465 / 2,064 |
| Participants with account balances | 2,539 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Deloitte and Touche, LLP |
| Employer stock held by plan | $157,873,312 |
Largest service providers (Schedule C)
| Principal Life Insurance Company | $263,091 reported compensation |
| Edelman Financial Engines, LLC | $193,985 reported compensation |
| Deloitte and Touche LLP | $83,648 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250619173726NAL0003361713001, received 2025-06-19, EIN 30-1133956, plan #004, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.