Flexible Renewable Storage Potential

47 STRONG LIQUIDITY NW Holdings • $200 million credit facility • Expires in 2026 • • Extension for two additional one-year periods Access to capital markets NW Natural Credit Ratings (1) S&P Global MOODY'S NW Natural AA- A2 A-1 Stable P-2 Stable • $400 million credit facility • • • Expires in 2026 Extension for two additional one-year periods Access to capital markets Solid credit ratings (1) (1) The above credit ratings are dependent upon a number of factors, both qualitative and quantitative, and are subject to change at any time. The disclosure of these credit ratings is not a recommendation to buy, sell or hold NW Holdings securities. AA- and A2 are secured debt ratings and A-1 and P-2 are commercial paper ratings NW Natural HOLDINGS™

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