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filing2023 Form 5500 — Mdu Resources Group, Inc. Pension Plan For Non-Bargaining Unit Employees
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 001Ack ID: 20241014172037NAL0054610802001
filing2023 Form 5500 — Mdu Resources Group, Inc. Master Trust
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 003Ack ID: 20241015084850NAL0029055521001
filing2023 Form 5500 — Mdu Resources Group, Inc. 401(K) Retirement Plan
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 004Ack ID: 20241009092657NAL0037359986001
filing2023 Form 5500 — Mdu Resources Group, Inc. Health And Welfare Benefits Program
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 502Ack ID: 20241015090024NAL0048577376001
filing2023 Form 5500 — Mdu Resources Group, Inc. Employee Assistance Program
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 504Ack ID: 20240724175652NAL0022619856001
filing2023 Form 5500 — Mdu Resources Group, Inc. Flexible Spending Account Plan (Fsa)
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 505Ack ID: 20240724175849NAL0029495970001
filing2023 Form 5500 — Mdu Resources Group, Inc. Retiree Health And Welfare Benefits Program
Sponsor: Mdu Resources Group, Inc.EIN: 30-1133956Plan: 512Ack ID: 20241015085323NAL0014274627001