NW Natural Holdings Schedules Earnings Release and Conference Call for Friday, November 3

Northwest Natural Holding Company (NYSE: NWN) (NW Natural Holdings) announced today it will issue its third quarter and year-to-date 2023 earnings release and conduct an analyst conference call and webcast to review results at 8 a.m. Pacific Time (11 a.m. Eastern Time) on Friday, Nov. 3, 2023.

To hear the conference by webcast, log on to NW Natural Holdings’ corporate website at ir.nwnaturalholdings.com. To hear the conference call by phone, please dial 1-833-470-1428 within the United States and enter the conference access code 463956. To join the call from Canada please dial 1-833-950-0062 and international callers can dial 1-929-526-1599 and access code 463956.

To access the conference replay, please call 1-866-813-9403 within the United States and enter the conference identification access code 243492. To hear the replay from Canada, please dial 1-226-828-7578 and from all other locations, please dial [phone].

About NW Natural Holdings

Northwest Natural Holding Company, (NYSE: NWN) (NW Natural Holdings), is headquartered in Portland, Oregon and has been doing business for over 160 years. It owns Northwest Natural Gas Company (NW Natural), NW Natural Water Company (NW Natural Water), NW Natural Renewables Holdings (NW Natural Renewables), and other business interests.

We have a longstanding commitment to safety, environmental stewardship and the energy transition, and taking care of our employees and communities. NW Natural Holdings was recognized by Ethisphere® in 2022 and 2023 as one of the World’s Most Ethical Companies®. NW Natural consistently leads the industry with high J.D. Power & Associates customer satisfaction scores. Learn more in our latest ESG Report.

NW Natural is a local distribution company that currently provides natural gas service to approximately 2.5 million people in more than 140 communities through nearly 795,000 meters in Oregon and Southwest Washington with one of the most modern pipeline systems in the nation. NW Natural owns and operates 21.6 Bcf of underground gas storage capacity in Oregon.

NW Natural Water provides water distribution and wastewater services to communities throughout the Pacific Northwest, Texas and Arizona. Today NW Natural Water serves more than 164,000 people through approximately 66,000 meters and provides operation and maintenance services to an additional 10,000 connections. Learn more about our water business at nwnaturalwater.com.

NW Natural Renewables is a competitive business committed to leading in the energy transition by providing renewable fuels to support decarbonization in the utility, commercial, industrial and transportation sectors. Learn more at nwnaturalrenewables.com.

Additional information is available at nwnaturalholdings.com.

“World’s Most Ethical Companies” and “Ethisphere” names and marks are registered trademarks of Ethisphere LLC

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Investor Contact: Nikki Sparley Phone: [phone] Email: [e-mail]

Media Contact: David Roy Phone: [phone] Email: [e-mail]