TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 099218 Notice Type: Press Release or Company News Subject: ORGANIZATIONAL ANNOUNCEMENT Critical: N Post Date/Time: 12/01/2025 03:15 PM Notice Status: Initiate For Gas Day(s): 12/01/2025 - 12/07/2025 Notice Effective Date/Time: 12/01/2025 03:15 PM Notice End Date/Time: 12/08/2025 08:59 AM Required Response Indicator Description: 5-No response required Notice Text: Organizational Update We are pleased to share recent leadership changes within BHE Pipeline Group and Northern Natural Gas: Laura Demman has assumed the role of president and CEO of BHE Pipeline Group and will continue reporting to Mark Hewett, who now serves as president and CEO of Berkshire Hathaway Energy. Brian Mundt has been named president of Northern Natural Gas and Kern River Gas Transmission and will continue reporting to Laura Demman. Tom Halpin is Northern's new vice president of customer service and business development, reporting to Brian Mundt. About Brian Mundt Brian brings more than 30 years of leadership experience in energy operations, engineering and construction. He began his career at MidAmerican Energy Company in 1993 as an engineer and advanced through several leadership roles, ultimately serving as general manager of the Walter Scott Energy Center. In 2009, Brian joined Northern to lead the engineering group. He was promoted to vice president, field operations in 2017 and later to vice president, operations in 2022. Brian holds a bachelor's degree in mechanical engineering from South Dakota State University and an MBA from the University of Nebraska. Brian looks forward to strengthening customer relationships and remains committed to delivering safe, reliable transportation and storage service.