Board of Directors
Linden ("Linn") R. Evans, age 60, has been President and Chief Executive Officer of the Company since Jan. 1, 2019. He previously served as President and Chief Operating Officer from 2016 to 2018, and President and Chief Operating Officer – Utilities from 2004 to 2015. He began his career with Black Hills Corp. in 2001 as Corporate Counsel. Prior to joining the company, Mr. Evans was a mining engineer and an attorney specializing in environmental and corporate legal matters.
Steven R. Mills, age 67, has more than 40 years of experience in the fields of accounting, corporate finance, strategic planning, risk management, and mergers and acquisitions. He is a Board Member of Amyris, Inc., a renewable products company, where he serves as Chair of the Audit Committee and as a member of the Leadership, Development, Inclusion and Compensation Committee. Mr. Mills is also a consultant and advisor to Arianna S.A., a European-based specialized investment fund. Previously, Mr. Mills served as Chief Financial Officer of Amyris, Inc. from 2012 to 2013. Prior to joining Amyris, he had a 33-year career at Archer Daniels Midland Company, one of the world’s largest agricultural processors and food ingredient providers, where he held various senior executive roles, including Senior Executive Vice President Performance and Growth, Chief Financial Officer, Controller, and Senior Vice President Strategic Planning.
Robert P. Otto, age 63, has provided strategic planning and advisory services in cybersecurity and intelligence through his company, Bob Otto Consulting LLC, since 2017. With 34 years of U.S. Air Force service, he served as a general officer from 2008 to 2016, culminating as lieutenant general and the Deputy Chief of Staff for Intelligence, Surveillance and Reconnaissance. He was directly responsible for intelligence policy, planning, implementation, oversight, and leadership of a 27,000-person workforce.
Kathleen S. McAllister, age 58, has over 30 years of experience in diverse leadership roles with global, capital-intensive companies in the energy value chain. She served as Director, President and CEO of Transocean Partners LLC, an international provider of offshore contract drilling services from 2014 to 2016, and as CFO in 2016. She held the roles of Vice President and Treasurer of Transocean Ltd. from 2011 to 2014. Prior to 2011, she served in roles with increasing responsibility in finance, information technology, tax and treasury. Ms. McAllister is a National Association of Corporate Directors Board Fellow and a Certified Public Accountant. She previously served on the board of Maersk Drilling from 2019 to 2021, where she chaired the Audit and Risk Committee. She is a Board Member of Silverbow Resources, Inc. and TMC The Metals Company Inc., where she chairs the Audit Committees.
Tony A. Jensen, age 60, has over 35 years of experience in the international mining and mining finance industries. From 2003 until his retirement in 2019, Mr. Jensen served in several leadership roles at Royal Gold, Inc., a public precious metals company, including Director, President and Chief Executive Officer from 2006 to 2019, and Chief Operating Officer from 2003 to 2006. Prior to 2003, he held progressively more responsible roles in engineering, finance, strategic growth, safety, environmental excellence, and operational efficiency.
Scott M. Prochazka, age 57, served as Board Member, President and Chief Executive Officer of CenterPoint Energy, a public energy delivery company with electric transmission and distribution, power generation and natural gas distribution operations, from 2014 until his retirement in 2020. Prior to that he was Chief Operating Officer from 2012 to 2013, Senior Vice President of Electric Business from 2011 to 2012, and Vice President of Gas Business Unit from 2009 to 2011. He held other management positions including Vice President Customer Care and Support Services and Vice President Texas Gas Region. Before his time at CenterPoint Energy, Mr. Prochazka held roles of increasing responsibility at Dow Chemical. Mr. Prochazka was a Board Member of Enable Midstream Partners, LP from 2014 to 2020, and Chairman from 2015 to 2017. Mr. Prochazka was previously a Board Member of Peridot Acquisition Corporation, from 2020 to 2021, where he served on the Audit and Compensation Committees. He is a Board Member of Peridot Acquisition Corp. II where he serves on the Audit and Compensation Committees, and Li-Cycle Holdings Corp. (successor to Peridot Acquisition Corp.) where he chairs the Audit Committee and serves on the Nominating/Governance Committee and the Compensation Committee.