Northwest Natural Holding Company (NYSE: NWN) (NW Natural Holdings) announced today it will issue its first quarter 2026 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 Wednesday, May 6, 2026.

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 1-833-461-5787 within the United States and enter the conference access code 913916145.

The conference call replay can be accessed on the NW Natural Holdings’ corporate website for one year after the completion of the event.

About NW Natural Holdings

Northwest Natural Holding Company (NYSE: NWN) is headquartered in Portland, Oregon and has operated for more than 167 years. It owns Northwest Natural Gas Company (NW Natural), the Company's long-standing natural gas utility serving the Pacific Northwest; SiEnergy Operating, LLC (SiEnergy), a fast-growing natural gas utility serving key Texas markets; NW Natural Water Company (NW Natural Water), an expanding water and wastewater utility; and additional business interests. Together, NW Natural Holdings provides essential energy and water services to nearly one million customers across seven states. The Company has a longstanding commitment to safety, environmental stewardship and supporting its employees and communities, and consistently leads the industry in J.D. Power customer satisfaction. Additional information is available at nwnaturalholdings.com.

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