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Form 5500 · Retirement plan · BISMARCK, ND

MDU RESOURCES GROUP, INC.

The filing calls this plan MDU RESOURCES GROUP, INC. 401(K) RETIREMENT PLAN.

MDU RESOURCES GROUP, INC. of BISMARCK, ND's retirement plan holds 1 insurance-company contract (annuities or guaranteed-interest accounts), disclosed on Schedule A of its Form 5500. These are investment and funding contracts, not group health or welfare coverage. No medical, dental or life benefit is reported on this filing.

Agent of record (Schedule A)
Not disclosed
Insurance company
NEW YORK LIFE INSURANCE COMPANY
Contract year ends
Decemberas filed for plan year 2025

Sourced from U.S. DOL EFAST2 Form 5500 · EIN 30-1133956 · plan 004 · plan year 2025, filed Jun 19, 2026

Participants at the start of the year
2,572
Contracts on file
1
Contract value
$38,674,784
Plan year end
December

Plan brief

Schedule A lists 1 insurance contract held by the plan — an annuity, a guaranteed-interest account or a similar funding vehicle, with NEW YORK LIFE INSURANCE COMPANY.

The contracts held $38,674,784 at the end of the plan year, as reported on Schedule A.

The filing discloses no agent commission on these contracts.

A Schedule A is filed for a retirement plan when plan assets sit in an insurance company contract. It reports the contract's balances and any agent commission. It does not report a health, dental or life premium, and it does not give a group renewal date.

The contract year ended in December.

Schedule A insurance contracts

CarrierContract typeCoveredYear endsContract valueCommission
NEW YORK LIFE INSURANCE COMPANYAnnuity / GIC2,614December$38,674,784$0

Covered = persons covered at policy year end, as filed on Schedule A for that policy — often certificates or one class, not the whole plan. Premium = the filing’s own premium/charges figure; “—” means not credibly reported.

See the filing at the Department of Labor

Administrator and service providers

Plan administrator on the filing
MDU RESOURCES GROUP, INC. EMPLOYEE BENEFITS COMMITTEE
EIN 30-1133956
PRINCIPAL LIFE INSURANCE COMPANY
Contract administrator · Recordkeeping and information management · EIN 42-0127290
$189,481
paid directly by the plan
DELOITTE & TOUCH LLP
Accounting and audit · EIN 13-3891517
$68,604
paid directly by the plan
WILSHIRE ADVISORS LLC
INVESTMENT ADVISORY · EIN 95-2755361
$94,108
paid directly by the plan
EDELMAN FINANCIAL ENGINES, LLC
INV ADV, PARTICIPANTS · EIN 94-3250323
$242,831
paid directly by the plan

The plan administrator is from line 3a of the main form. The service providers are named on Schedule C of this filing. We publish company names only.

What the plan holds

Plan assets at year end
$867,145,645
Paid out in benefits
$77,127,460
Participants at the start of the year
2,572
Participants with account balances
2,614

Sourced from U.S. DOL EFAST2 Form 5500 · Schedule H

Who runs the plan

RecordkeeperEIN 42-0127290
PRINCIPAL LIFE INSURANCE COMPANY
Independent accountantEIN 13-3891517
DELOITTE AND TOUCHE LLP
Accountant's opinion (Schedule H, line 3a)
Unmodified
Audit fee
$68,604

The recordkeeper and the accountant are named on Schedule C of this filing. The opinion and the fee are from Schedule H.

Other plans filed by this employer

Health And Welfare Benefits ProgramInsured benefit plan · 4 Schedule A contractsRenews ~Jan 1plan 512Insured benefit plan · 7 Schedule A contractsRenews ~Jan 1plan 001Retirement plan · 1 Schedule A contractEmployee Assistance ProgramForm 5500 filing · no insured Schedule A contractsFlexible Spending Account Plan (Fsa)Form 5500 filing · no insured Schedule A contractsMaster TrustForm 5500 filing · no insured Schedule A contracts

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