MDU资源公司 MDU

Ms. Nicole A. Kivisto, MDU Resources Group, Inc. (NYSE: MDU) President and Chief Executive Officer, since January 2024 President and Chief Executive Officer, Montana-Dakota Utilities Co., Cascade Natural Gas Corporation, and Intermountain Gas Company, January 2015 through January 2024 Other Board Service Director, AGA (trade association for natural gas industry), since 2015 Director, EEI (trade association for electric industry), since 2015 Director, Bravera Bank (employee and director owned bank), since February 2018 Director, North Dakota Lignite Energy Council (trade association for coal industry), 2015 through 2023 Member, Board of Trustees, University of Mary, 2017 through 2023.

Mr. Vollmer has served as Chief Financial Officer since September 2017. Prior to that, in addition to serving as Chief Financial Officer, he also served as Vice President from September 2017 through January 2025, and Treasurer from September 2017 through October 2020 and June 2023 through January 2025.

Mr. Senger has served as Chief Utilities Officer since January 2024. Prior to that, he was Executive Vice President-Regulatory Affairs, Customer Service, and Administration from June 2018 through December 2023.

Mr. Johnson has served as President, WBI Energy, Inc. since June 2023. Prior to that, he was Executive Vice President-Commercial of WBI Energy, Inc. from January 2021 through June 2023, and Vice President-Commercial of WBI Energy, Inc. from May 2014 through January 2021.

Mr. Anderson, IDACORP, Inc. (NYSE: IDA) and Idaho Power Company (regulated electric utility company) President and Chief Executive Officer, May 2014 through May 2020 Other Board Service Board Chair, Gemstone Holdings (parent company of Blue Cross of Idaho, a non-profit mutual insurance company), since January 2024 Board Chair, Blue Cross of Idaho, since May 2023, and a director since 2019 Director, IDACORP, Inc. and Idaho Power Company, September 2013 through May 2022

Mr. Dennis W. Johnson, Chair of the Board since May 2019, Vice Chair from February 2018 through May 2019, and a director since February 2001. Professional Experience: TMI Group Incorporated, and its two wholly-owned subsidiaries, TMI Corporation and TMI Transport Corporation (manufacturers of casework and architectural woodwork); Chair, President, and Chief Executive Officer, since January 1982; Various other positions, April 1974 through December 1981 Dickinson City Commission:; President, July 2000 through October 2015. Other Board Service: Vice Chair, Bank of North Dakota Advisory Board of Directors (state-owned, state-run financial institution), since July 2022, and a director, since August 2017; Director, Federal Reserve Bank of Minneapolis, January 1993 through December 1998. He also contributes significant knowledge of local, state, and regional issues involving North Dakota, the state of the Corporate Headquarters and a significant share of its operations, from his service on numerous industry, state, and community boards, including the North Dakota Workforce Development Council (Chair), the Theodore Roosevelt Medora Foundation, former North Dakota Gov. Schafer's and Hoeven's transition teams, and former North Dakota Gov. Sinner's Education Action Commission. Dennis W. Johnson, Chairman of the Board, will remain on the board as Independent Director with effect from 15th May 2025. Mr. Johnson will be retiring from the Board when his term expires at the conclusion of the Annual Meeting per the Corporate Governance Guidelines, and has been designated a director emeritus for a one-year term following the Annual Meeting.

Mr. Douglas W. Jaeger, Ulteig, Inc. (employee-owned professional engineering services firm) President and Chief Executive Officer and a director, since May 2015 Other Board Service Director, Great Plains Institute (non-profit organization with a mission to accelerate the transition to net-zero carbon emissions), August 2016 through April 2025 Director, Amsoil, Inc. (manufacturer of synthetic lubricants, fuel additives, and filters), June 2023 through May 2024 Director, Qualus Power Services / CE Power (pure-play power services firm of energy transitions), April 2015 through July 2022 Director, Computype Inc. (global provider of specialized labeling solutions), June 2011 through May 2024.

Marian M. Durkin, Avista Corporation (NYSE: AVA) (regulated electric and natural gas utility company) Senior Vice President, General Counsel, Corporate Secretary and Chief Compliance Officer, August 2005 through August 2020 Other Board Service Director, Energy Insurance Mutual (mutual insurance company serving utility companies), May 2012 through May 2022

Mr. Vernon A. Dosch, National Information Solutions Cooperative (NISC) (software and technology provider for the utility and broadband industries) Chief Executive Officer and President, January 2002 through January 2020 Other Board Service Director, JSI Solutions (consulting and broadband solutions firm), since January 2021 Director, North Dakota Department of Commerce, Legacy Investment for Technology Loan Fund (innovation loan fund to support technology advancement), since January 2022 Director, Starion Bank (community bank), January 2001 through January 2023

Priti R. Patel, Great River Energy (not-for-profit wholesale electric power cooperative) Vice President and Chief Transmission Officer, since May 2017 Other Board Service Board Chair, Great Plains Institute (non-profit organization with a mission to accelerate the transition to net-zero carbon emissions), since November 2017 Director, Midwest Reliability Organization (regional utility reliability council), since January 2021

Ms. Tammy J. Miller, State of North Dakota Lieutenant Governor, January 2023 through December 2024 Border States Industries, Inc. (distributor of electrical products, equipment, and services to the utility, construction, and industrial markets) Chief Executive Officer and Board Chair, April 2006 through March 2020 Other Board Service Director, SkyWater Technology (NASDAQ: SKYT) (semiconductor and technology company), since April 2025 North Dakota Center for Employee Ownership (non-profit organization supporting employee ownership), since January 2026 Vice Chair and Treasurer, Plains Art Museum (fine arts museum located in Fargo, North Dakota), since January 2026 and a director since July 2025

Mr. Charles M. Kelley, ONEOK, Inc. (NYSE: OKE) (diversified and integrated midstream energy company) Senior Vice President, Natural Gas Pipelines, April 2018 through March 2025 Other Board Service Board Chair, A New Leaf, Inc. (non-profit organization with a mission to empower individuals with intellectual and developmental disabilities), January 2018 through December 2020

Ms. Sievert has served as Chief Accounting and Regulatory Affairs Officer since January 2025. Prior to that, she was Vice President, Chief Accounting Officer, and Controller from September 2017 through January 2025.