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Integrity

Our Commitment to Integrity

We know corporate governance is more than meeting the requirements of the law. Confidence and trust must be earned.

Integrity is the cornerstone for our dealings with customers, employees, stockholders, suppliers, competitors and the communities we serve. There can be no exceptions or compromises.

We strive to provide timely and accurate information to stakeholders to establish realistic expectations about our company. Above all, we know we must operate with integrity.

MDU Resources’ Leading with Integrity Policy is our code of business conduct.

About Us

Amendments to, and Waivers of, the Leading with Integrity Policy

MDU Resources’ board of directors, on May 14, 2025, adopted an updated and revised Leading With Integrity Policy as part of its periodic review process. This Policy applies to all non-employee directors, officers, and employees of the Company and its subsidiaries. The updates and revisions to the Policy, among other things, clarify and revise provisions relating to conflicts of interest, gifts, artificial intelligence, regulatory compliance, and workplace opportunities. There are currently no waivers of the Policy for non-employee directors or officers of the Company.

Leading With Integrity Policy

Ethics Hotline

Our ethics hotline provides MDU Resources’ employees, vendors, customers and other stakeholders a way to make confidential and anonymous reports regarding accounting, legal, ethical, human resources and safety issues.

File a Report

Conflict Minerals Report

MDU Resources Group has evaluated its current line of manufactured products, or products contracted to be manufactured, for conflict minerals. This report documents the company’s findings.

Conflict Minerals Report
Conflict Minerals Policy

Vendor Code of Conduct

Our Vendor Code of Conduct sets forth our expectations of vendors, including ethical business practices, workplace safety, environmental stewardship, and compliance with applicable laws and regulations.

Vendor Code of Conduct

Corporate Compliance Officers

Compliance officers are available at each of our businesses to assist with concerns of potential governance, compliance or legal violations.

MDU Resources Group, Inc.
Kirsti Hourigan
701-222-7729 or
800-437-8000, ext. 1091
1200 W. Century Ave.
Bismarck, ND 58503
Email

Regulated Energy Companies
Melinda Steckler
701-530-1025 or
800-437-8000, ext. 1025
1200 W. Century Ave.
Bismarck, ND 58503
Email