MDU Resources Group Inc. – Credit Agreements Watch

from 10-K 154 pages Execution Version Deal: 55277haj1 Facility: 55277hak8 $200,000,000 Amended and Restated Credit Agreement Dated as of December 11, 2025 by and Among MDU Resources Group, Inc., as Borrower, the Lenders Referred to Herein, as Lenders, and U.S. Bank National Association, as Administrative Agent and Wells Fargo Bank, National Association as Syndication Agent and Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Bank, National Association as Co-Documentation Agents U.S. Bank National Association, Wells Fargo Securities, LLC, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Lead Arrangers and U.S. Bank National Association, Wells Fargo Securities, LLC, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Bookrunners

from 10-K 163 pages Execution Version Deal: 61200uaj2 Facility: 61200uak9 $200,000,000 Third Amended and Restated Credit Agreement Dated as of December 11, 2025, by and Among Montana-Dakota Utilities Co., as Borrower, the Lenders Referred to Herein, as Lenders, and Wells Fargo Bank, National Association, as Administrative Agent and Swingline Lender and U.S. Bank National Association, as Syndication Agent and Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Bank, National Association as Co-Documentation Agents Wells Fargo Securities, LLC, U.S. Bank National Association, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Lead Arrangers Wells Fargo Securities, LLC, U.S. Bank National Association, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Bookrunners

from 8-K 150 pages Execution Version Deal: 55277haj1 Facility: 55277hak8 $200,000,000 Amended and Restated Credit Agreement Dated as of December 11, 2025 by and Among MDU Resources Group, Inc., as Borrower, the Lenders Referred to Herein, as Lenders, and U.S. Bank National Association, as Administrative Agent and Wells Fargo Bank, National Association as Syndication Agent and Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Bank, National Association as Co-Documentation Agents U.S. Bank National Association, Wells Fargo Securities, LLC, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Lead Arrangers and U.S. Bank National Association, Wells Fargo Securities, LLC, Cobank, Acb, Jpmorgan Chase Bank, N.A. and PNC Capital Markets LLC as Joint Bookrunners

from 10-K 5 pages The MDU Resources Group, Inc. Deferred Compensation Plan for Directors (As Amended and Restated Effective May 15, 2008) (The “Plan”) Permits a Director to Defer All or Any Portion of the Annual Cash Retainers. the Amount Deferred Is Recorded in Each Participant's Deferred Compensation Account and Credited With Income in the Manner Prescribed in the Plan. for Further Details, Reference Is Made to the Plan, a Copy of Which Is Attached. Common Stock

from 10-Q 110 pages Term Loan Agreement Dated as of April 1, 2024 Among Wbi Energy Transmission, Inc., as the Company, Cehi, LLC, as the Parent, Various Lenders and U.S. Bank National Association, as Administrative Agent U.S. Bank National Association Lead Arranger and Sole Bookrunner

from 8-K 91 pages $375,000,000 Term Loan Agreement Dated as of May 31, 2023 by and Among MDU Resources Group, Inc., as Borrower, the Lenders Referred to Herein, as Lenders, and U.S. Bank National Association, as Administrative Agent and Cobank, Acb Jpmorgan Chase Bank, N.A. PNC Bank, National Association and Wells Fargo Bank, National Association as Co-Syndication Agents U.S. Bank National Association Cobank, Acb, Jpmorgan Chase Bank, N.A. PNC Capital Markets LLC and Wells Fargo Securities, LLC as Joint Lead Arrangers and Bookrunners

from 8-K 95 pages $150,000,000 364-Day Revolving Credit Agreement Dated as of May 31, 2023 by and Among MDU Resources Group, Inc., as Borrower, the Lenders Referred to Herein, as Lenders, and U.S. Bank National Association, as Administrative Agent and Cobank, Acb Jpmorgan Chase Bank, N.A. PNC Bank, National Association and Wells Fargo Bank, National Association as Co-Syndication Agents U.S. Bank National Association Cobank, Acb, Jpmorgan Chase Bank, N.A. PNC Capital Markets LLC and Wells Fargo Securities, LLC as Joint Lead Arrangers and Bookrunners

from 8-K 109 pages $200,000,000 5-Year Revolving Credit Agreement Dated as of May 31, 2023 by and Among MDU Resources Group, Inc., as Borrower, the Lenders Referred to Herein, as Lenders, and U.S. Bank National Association, as Administrative Agent and Cobank, Acb Jpmorgan Chase Bank, N.A. PNC Bank, National Association and Wells Fargo Bank, National Association as Co-Syndication Agents U.S. Bank National Association Cobank, Acb, Jpmorgan Chase Bank, N.A. PNC Capital Markets LLC and Wells Fargo Securities, LLC as Joint Lead Arrangers and Bookrunners

from 10-K 62 pages Wbi Energy Transmission, Inc. $350,000,000 Private Shelf Facility Including

from 10-K 102 pages $175,000,000 Amended and Restated Credit Agreement Dated as of December 19, 2019, by and Among Montana-Dakota Utilities Co., as Borrower, the Lenders Referred to Herein, as Lenders, and Wells Fargo Bank, National Association, as Administrative Agent and Swingline Lender Mufg Bank, Ltd. as Syndication Agent Wells Fargo Securities, LLC and Mufg Bank, Ltd. as Joint Lead Arrangers and Joint Bookrunners

from 10-K 107 pages Fifth Amended and Restated Credit Agreement Dated as of December 19, 2019 Among Centennial Energy Holdings, Inc., the Several Financial Institutions From Time to Time Party to This Agreement, U.S. Bank National Association, as Administrative Agent, Mufg Bank, Ltd., as Syndication Agent, and Jpmorgan Chase Bank, N.A., PNC Bank, National Association and Royal Bank of Canada, as Co-Documentation Agents Arranged by U.S. Bank National Association, Mufg Bank, Ltd., Jpmorgan Chase Bank, N.A., PNC Capital Markets LLC and Rbc Capital Markets

from 10-K 14 pages First Amendment

from 10-Q 107 pages Credit Agreement Among MDU Resources Group, Inc. as Borrower; Various Lenders; and Wells Fargo Bank, National Association, as Administrative Agent Mufg Bank, Ltd., as Syndication Agent Wells Fargo Securities, LLC and Mufg Bank, Ltd., as Joint Lead Arrangers and Joint Lead Bookrunners Closing Date: June 8, 2018

from 10-Q 141 pages Fourth Amended and Restated Credit Agreement Dated as of September 23, 2016 Among Centennial Energy Holdings, Inc., the Several Financial Institutions From Time to Time Party to This Agreement, U.S. Bank National Association, as Administrative Agent, the Bank of Tokyo-Mitsubishi Ufj, Ltd., as Syndication Agent, and Jpmorgan Chase Bank, N.A., Wells Fargo Bank, National Association and Royal Bank of Canada, as Co-Documentation Agents Arranged by U.S. Bank National Association, the Bank of Tokyo-Mitsubishi Ufj, Ltd., Jpmorgan Chase Bank, N.A., Wells Fargo Securities, LLC and Rbc Capital Markets

from 10-K 14 pages Centennial Energy Holdings, Inc. Po Box 5650 1200 West Century Avenue Bismarck, North Dakota 58506-5650 Attn: Mr. Doran N. Schwarz Vice President and Chief Financial Officer Re: Waiver Under Credit Agreement Ladies/Gentlemen

from 10-Q 142 pages Third Amended and Restated Credit Agreement Dated as of May 8, 2014 Among Centennial Energy Holdings, Inc., the Several Financial Institutions From Time to Time Party to This Agreement, U.S. Bank National Association, as Administrative Agent, the Bank of Tokyo-Mitsubishi Ufj, Ltd., as Syndication Agent, and Jpmorgan Chase Bank, N.A., Wells Fargo Bank, National Association and Royal Bank of Canada, as Co-Documentation Agents Arranged by U.S. Bank National Association, the Bank of Tokyo-Mitsubishi Ufj, Ltd., J.P. Morgan Securities LLC, Wells Fargo Securities, LLC and Royal Bank of Canada

from 10-Q 23 pages Second Amendment to Credit Agreement

from 10-Q 20 pages First Amendment to Credit Agreement

from 10-Q 139 pages Second Amended and Restated Credit Agreement Dated as of June 8, 2012 Among Centennial Energy Holdings, Inc., the Several Financial Institutions From Time to Time Party to This Agreement, U.S. Bank National Association, as Administrative Agent, Union Bank, N.A., as Syndication Agent, and Jpmorgan Chase Bank, N.A., Wells Fargo Bank, National Association, Royal Bank of Canada and Toronto Dominion (New York) LLC, as Co-Documentation Agents Arranged by U.S. Bank National Association, Union Bank, N.A., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC Contents Clause Page

from 10-K 86 pages Credit Agreement Among MDU Resources Group, Inc. as Borrower; Various Lenders; and Wells Fargo Bank, National Association, as Administrative Agent Wells Fargo Securities, LLC and Union Bank, N.A., as Joint Lead Arrangers and Joint Lead Bookrunners Union Bank, N.A., as Syndication Agent Closing Date: May 26, 2011 $100,000,000 Revolving Credit Facility