NORTHWEST NATURAL GAS CO
For the period ended Jun 30, 2026. Filed Aug 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.
Jun 30, 2026 · Filed Aug 5, 2026
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Item 6. Exhibits
See the Exhibit Index below, which is incorporated by reference herein.
Exhibit Index to Quarterly Report on Form 10-Q
For the Quarter Ended June 30, 2026
| Exhibit Index | |
|---|---|
| Exhibit Number | Document |
| *†4.1 | Note Purchase Agreement, dated as of June 4, 2026, by and among Northwest Natural Holding Company and each purchaser party thereto (incorporated by reference to Exhibit 4.1 to the Form 8-K dated June 25, 2026, File No. 1-38681). |
| *10.1 | Reimbursement Agreement and Continuing Indemnity Related to Standby Letters of Credit/Letters of Guarantee, dated May 1, 2026, between NW Natural and the Toronto-Dominion Bank, New York Branch (incorporated by reference to Exhibit 10.1 to Form 10-Q for the fiscal quarter ended March 31, 2026, File No. 1-15973). |
| 31.1 | Certification of Principal Executive Officer of Northwest Natural Gas Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002. |
| 31.2 | Certification of Principal Financial Officer of Northwest Natural Gas Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002. |
| 31.3 | Certification of Principal Executive Officer of Northwest Natural Holding Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002. |
| 31.4 | Certification of Principal Financial Officer of Northwest Natural Holding Company Pursuant to Rule 13a-14(a)/15-d-14(a), Section 302 of the Sarbanes-Oxley Act of 2002. |
| **32.1 | Certification of Principal Executive Officer and Principal Financial Officer of Northwest Natural Gas Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
| **32.2 | Certification of Principal Executive Officer and Principal Financial Officer of Northwest Natural Holding Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
| 101 | The following materials formatted in Inline Extensible Business Reporting Language (Inline XBRL):(i) Consolidated Statements of Income;(ii) Consolidated Balance Sheets;(iii) Consolidated Statements of Cash Flows; and(iv) Related notes.The instance document does not appear in the interactive data file because XBRL tags are embedded within the Inline XBRL document. |
| 104 | The cover page from the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, formatted in Inline XBRL. |
- Incorporated by reference as indicated.
** Pursuant to Item 601(b)(32)(ii) of Regulation S-K, this certification is furnished and not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.
† Certain information in this exhibit has been omitted in accordance with Item 601(a)(5) and Item 601(b)(10) of Regulation S-K. NW Holdings agrees to furnish an unredacted copy of the exhibit and any omitted schedule or annex to the Securities and Exchange Commission upon request.
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