2026
Corporate DC >$500M – $1B

MDU Resources Group, Inc.

FINALIST
Roxanne Roerick
Director Human Resources
  • Location:
    Bismarck, North Dakota
  • Industry:
    Utility
  • Plan(s) Offered:
    401(k), with profit sharing
  • Plan Assets:
    $825M
  • Number of Participants:
    2,050
  • DC Plan Participation Rate:
    95%
  • DC Plan Average Deferral Rate:
    11.5%
  • Automatic Enrollment:
    Yes
  • Automatic Escalation:
    Yes
  • Default Deferral Rate for Auto-Enrollment:
    6%
  • Default Investment Fund:
    T. Rowe Price Retirement target-date fund collective investment trusts
  • DC Plan Employer Contribution:
    100% of 4% + 5% nonelective + 3% profit-sharing
  • Recordkeeper:
    Principal Financial Group
  • Plan Adviser:
    Wilshire
  • Financial Wellness Educator(s):
    Edelmann Financial Engines

In its highly regulated industry, MDU Resources, a provider of electricity and natural gas utility services and construction, understands compliance and is careful that its retirement plan operations align with plan documents and are up to date with regulations. Its attention to detail was visible in its “exceptional execution during a complex corporate spin-off in 2024 when a new stock entered the plan. [This included a mindful] strategy to minimize volatility and protect participant value,” its nominator wrote. It defaults new participants at 6% and replaced its tiered match with a lower, 100% match so more could capture the full benefit.

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