Boardroom Alpha
Boardroom Alpha
MDU · Current Report (Form 8-K) · Filed January 16, 2026

Mdu Resources Group Inc — Current Report (Form 8-K)

Form
8-K
Filed
January 16, 2026
Period
Jan 15, 2026
Ticker
MDU
Accession
0000067716-26-000005
Boardroom Alpha · Filing insights

WBI extends shelf note authority to $350M through 2028; $235M issued, $115M remaining.

About Mdu Resources Group Inc
Market cap
$4.4B
1Y TSR
+36.6%
3Y TSR
+29.3%
Board grade
B
Sector
Industrials
CEO
Nicole A Kivisto
Last annual meeting: May 11, 2026 · View full Mdu Resources Group Inc profile →
mdu-20260115


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 15, 2026

MDU Resources Group, Inc.
(Exact name of registrant as specified in its charter)

Delaware1-0348030-1133956
(State or other jurisdiction of(Commission File Number)(IRS Employer Identification No.)
incorporation)

1200 West Century Avenue
P.O. Box 5650
Bismarck, North Dakota
(Address of principal executive offices)
58506
(Zip Code)

Registrant’s telephone number, including area code: (701) 530-1000

N/A
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
 
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
 
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $1.00 per shareMDUNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.




Item 1.01.
Entry into a Material Definitive Agreement.
On January 15, 2026, WBI Energy Transmission, Inc. (“WBI”), an indirect subsidiary of MDU Resources Group, Inc. (the “Company”), entered into Amendment No. 1 to the Second Amended and Restated Note Purchase and Private Shelf Agreement (the “Private Shelf Amendment”), by and among WBI, PGIM, Inc. (“Prudential”), and the others purchasers named therein, to amend that certain Note Purchase and Private Shelf Agreement, originally dated as of December 23, 2008, as amended and restated as of September 12, 2013, and as further amended and restated as of December 22, 2022 (collectively, as amended by the Private Shelf Amendment, the “Private Shelf Agreement”). The Private Shelf Amendment extends the date that WBI may issue and sell, and Prudential may consider in its sole discretion the purchase of, in one or a series of transactions, additional senior unsecured notes in an aggregate principal amount of up to $350 million (the “Shelf Notes”), through December 22, 2028, unless either party terminates such issuance right. The principal amount and interest rate of any series of Shelf Notes will be determined at the applicable time of issuance and purchase. WBI intends to use the proceeds of any issuance under the Private Shelf Agreement for general corporate purposes, including funding to execute the Company’s previously announced capital expenditures related to WBI. WBI has previously issued $235 million of Shelf Notes under the Private Shelf Agreement such that $115 million of Shelf Notes may be issued under the Private Shelf Agreement as of the date hereof.

The Private Shelf Agreement contains customary affirmative, negative, and financial covenants, including without limitation, restricting consolidated indebtedness and priority debt, liens, transactions with affiliates, asset dispositions, mergers and consolidation, and certain investments. The Private Shelf Agreement also contains customary events of default, including without limitation, payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to certain other material indebtedness in excess of specified amounts, certain events of bankruptcy and insolvency, certain Employee Retirement Income Security Act events and judgments in excess of specified amounts, as well as customary acceleration provisions upon the occurrence of an event of default.

The foregoing descriptions of the material terms of the Private Shelf Agreement and the Private Shelf Amendment do not purport to be complete and are qualified in their entirety by reference to the full texts of the Private Shelf Agreement and the Private Shelf Amendment, respectively, copies of which are attached hereto as Exhibit 10.1 and 10.2, respectively, and incorporated by reference herein.

Item 2.03.
Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
The disclosure set forth above under Item 1.01 of this Current Report on Form 8-K is hereby incorporated by reference into this Item 2.03.

Item 9.01.Financial Statements and Exhibits.
(d)Exhibits.
Exhibit No.
Description
10.1 †
10.2 †
104
Cover Page Interactive Data File (embedded within the Inline XBRL document).

† Certain schedules and exhibits have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company hereby undertakes to supplementally furnish copies of any omitted schedules and exhibits to the U.S. Securities and Exchange Commission upon request; provided that the Company may request confidential treatment pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended.

2







SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: January 16, 2026
MDU Resources Group, Inc.
By:/s/ Anthony D. Foti
Name:Anthony D. Foti
Title:Chief Legal Officer and Corporate Secretary

3
From this filing to the file

Every SEC filing, parsed structured.

Boardroom Alpha indexes every 8-K, 10-K, 10-Q, and proxy back to 2000 — vote tabulations, comp tables, red flags, insider transactions, all queryable the day they hit EDGAR.

Independent — issuer-pays-free, ideology-free, U.S.-owned.

More filings

Other filings from Mdu Resources Group Inc (MDU)

Reference

Frequently asked questions

When did Mdu Resources Group Inc file this 8-K?
Mdu Resources Group Inc (MDU) filed this Current Report (Form 8-K) with the SEC on January 16, 2026. The accession number assigned by EDGAR is 0000067716-26-000005.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
WBI extends shelf note authority to $350M through 2028; $235M issued, $115M remaining. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Mdu Resources Group Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Mdu Resources Group Inc has filed under CIK 67716, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
Disclaimer

The opinions and information contained herein have been obtained or derived from sources believed to be reliable, but Boardroom Alpha cannot guarantee its accuracy and completeness, and that of the opinions based thereon.

This report contains opinions and is provided for informational purposes only – it does not constitute investment, legal or tax advice. You should not rely solely upon the research herein for purposes of transacting securities or other investments, and you are encouraged to conduct your own research and due diligence, and to seek the advice of a qualified securities professional before you make any investment.

None of the information contained in this report constitutes, or is intended to constitute a recommendation by Boardroom Alpha of any particular security or trading strategy or a determination by Boardroom Alpha that any security or trading strategy is suitable for any specific person. To the extent any of the information contained herein may be deemed to be investment advice, such information is impersonal and not tailored to the investment needs of any specific person.

No representation or warranty, expressed or implied, is made on behalf of Boardroom Alpha as to the accuracy or completeness of the information contained herein. Boardroom Alpha does not accept any liability for any direct, indirect or consequential loss or damage suffered by any person as a result of relying on all or any part of this research and any liability is expressly disclaimed.

Full disclaimer