 PORTLAND, Ore.--BUSINESS WIRE--Northwest Natural Holding Company, NYSE: NWN NW Natural Holdings, reported financial results and highlights including: First quarter 2021 earnings of 1.94 per share, compared to earnings from continuing operations of 1.58 per share for the same period in 2020 Results primarily reflected new rates in Oregon for NW Natural, customer growth, and asset management benefits during the February weather event, partially offset by the financial effects of COVID-19 