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NORTHWEST NATURAL GAS CO

For the period ended Sep 30, 2026. Filed Nov 5, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 5, 2026

NWN$51.99-0.1%Stored close · as of Nov 10, 2026

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Item 1. Legal Proceedings

Other than the proceedings disclosed in Note 17 to our unaudited condensed consolidated financial statements included in Part I, Item 1 and those proceedings disclosed in Part I, Item 3, “Legal Proceedings” in the 2025 Form 10-K, which are incorporated by reference, we have only nonmaterial litigation, or litigation that occurs in the ordinary course of our business.

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