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NORTHWEST NATURAL GAS CO

For the period ended Jun 30, 2025. Filed Aug 5, 2025.

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About this filing

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, 2025 · Filed Aug 5, 2025

NWN$52.02+0.5%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2025

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ___________ to____________

NORTHWEST NATURAL HOLDING COMPANYNORTHWEST NATURAL GAS COMPANY
(Exact name of registrant as specified in its charter) · (Exact name of registrant as specified in its charter)
Commission file number1-38681Commission file number1-15973
Oregon82-4710680Oregon93-0256722
(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.)
250 SW Taylor Street250 SW Taylor Street
PortlandOregon97204PortlandOregon97204
(Address of principal executive offices)(Zip Code)(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code:(503)226-4211Registrant’s telephone number, including area code:(503)226-4211
Securities registered pursuant to Section 12(b) of the Act:
RegistrantTitle of each classTrading SymbolName of each exchange on which registered
NORTHWEST NATURAL HOLDING COMPANYCommon StockNWNNew York Stock Exchange
NORTHWEST NATURAL GAS COMPANYNone
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
NORTHWEST NATURAL HOLDING COMPANYYes☒No☐NORTHWEST NATURAL GAS COMPANYYes☒No☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
NORTHWEST NATURAL HOLDING COMPANYYes☒No☐NORTHWEST NATURAL GAS COMPANYYes☒No☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer", "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.
NORTHWEST NATURAL HOLDING COMPANYNORTHWEST NATURAL GAS COMPANY
Large Accelerated Filer☒Large Accelerated Filer☐
Accelerated Filer☐Accelerated Filer☐
Non-accelerated Filer☐Non-accelerated Filer☒
Smaller Reporting Company☐Smaller Reporting Company☐
Emerging Growth Company☐Emerging Growth Company☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
NORTHWEST NATURAL HOLDING COMPANYYes☐No☒NORTHWEST NATURAL GAS COMPANYYes☐No☒

At July 25, 2025,40,938,429 shares of Northwest Natural Holding Company's Common Stock (the only class of Common Stock) were outstanding. All shares of Northwest Natural Gas Company's Common Stock (the only class of Common Stock) outstanding were held by Northwest Natural Holding Company.

This combined Form 10-Q is separately filed by Northwest Natural Holding Company and Northwest Natural Gas Company. Information contained in this document relating to Northwest Natural Gas Company is filed by Northwest Natural Holding Company and separately by Northwest Natural Gas Company. Northwest Natural Gas Company makes no representation as to information relating to Northwest Natural Holding Company or its subsidiaries, except as it may relate to Northwest Natural Gas Company and its subsidiaries.

For the Quarterly Period Ended June 30, 2025

TABLE OF CONTENTS

PART 1.FINANCIAL INFORMATIONPage
Forward-Looking Statements3
Item 1.Unaudited Financial Statements:
Consolidated Statements of Comprehensive Income of Northwest Natural Holding Company for the three and six months ended June 30, 2025 and 20245
Consolidated Balance Sheets of Northwest Natural Holding Company at June 30, 2025 and 2024 and December 31, 20246
Consolidated Statements of Shareholders' Equity of Northwest Natural Holding Company for the three and six months ended June 30, 2025 and 20248
Consolidated Statements of Cash Flows of Northwest Natural Holding Company for the six months ended June 30, 2025 and 20249
Consolidated Statements of Comprehensive Income of Northwest Natural Gas Company for the three and six months ended June 30, 2025 and 202410
Consolidated Balance Sheets of Northwest Natural Gas Company at June 30, 2025 and 2024 and December 31, 202411
Consolidated Statements of Shareholder's Equity of Northwest Natural Gas Company for the three and six months ended June 30, 2025 and 202413
Consolidated Statements of Cash Flows of Northwest Natural Gas Company for the six months ended June 30, 2025 and 202414
Notes to Unaudited Consolidated Financial Statements15
Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations50
Item 3.Quantitative and Qualitative Disclosures About Market Risk74
Item 4.Controls and Procedures75
PART II.OTHER INFORMATION
Item 1.Legal Proceedings75
Item 1A.Risk Factors75
Item 2.Unregistered Sales of Equity Securities and Use of Proceeds75
Item 5.Other Information76
Item 6.Exhibits76
Signatures78

PART I. FINANCIAL INFORMATION

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.