Northwest Natural pany(NWN) - 2025 Q4 - Annual Results

Exhibit 99.1 For Immediate Release Feb. 27, 2026 NW Natural Holdings Delivers Record 2025 Results Across All Businesses PORTLAND, ORE. — Northwest Natural Holding Company (NYSE: NWN) (NW Natural Holdings) reported financial results and highlights including: 2025 Highlights 2026 Guidance and Long-term Growth Targets "Last year was a pivotal year," said Justin B. Palfreyman, President and CEO of NW Natural Holdings. "We delivered record adjusted earnings per share at the top of our guidance range, deployed a ...