 PORTLAND, Ore.--BUSINESS WIRE--Northwest Natural Holding Company NYSE: NWN NW Natural Holdings announced today it will issue its first quarter 2022 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 4, 2022. 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 1-844-200-6205 within t 