Northwest Natural Holding Company (NWN) SEC Filings & Earnings Calls

Settlement still subject to RRC approval; any delay or modification could impact expected revenue and returns.

“remains subject to RRC approval” · word for word

Increased leverage from $120M in new debt; interest expense will rise.

“Issued $120M in first mortgage bonds at 5.62% and 6.26%.”

Regulatory lag and weather dependency could impact results.

“This guidance assumes ... average weather conditions, and no significant changes in prevailing regulatory policies.”

Regulatory compliance cost from Washington CCA and Oregon CPP

“NW Natural is subject to greenhouse gas (GHG) emission reduction requirements under the Washington Climate Commitment Act (CCA) regulations.” · word for word

Environmental remediation liability

“Environmental remediation expense $2,431 $2,296”

Regulatory lag and cost recovery risk; actual plant costs subject to review and refund.

“Plant placed into service after March 31, 2025 is subject to review, adjustment and refund according to actual costs incurred.” · word for word

Regulatory Risk from Climate Policies

“NW Natural is subject to GHG emission reduction requirements under the Washington Climate Commitment Act and Oregon Climate Protection Program.” · word for word

Acquisition Integration Risk

“SiEnergy acquisition completed in January 2025; integration and regulatory approvals remain ongoing.”

Interest Rate Sensitivity

“Interest expense, net increased to $33,352K from $29,395K, +13.5% YoY, due to higher debt levels.”

Regulatory disallowance risk

“For 2024, the OECC adjusted the EPS and ROIC components of the PSAs to exclude the impact of a $10.1 million after-tax non-cash charge resulting from the disallowance of undepreciated line extension costs ordered in NW Natural’s 2024 Oregon general rate case” · word for word

Workforce restructuring risk

“the exclusion of severance expenses incurred in the fourth quarter of 2025 in connection with certain workforce restructuring activities” · word for word

Housing market slowdown risk

“Lower-than-targeted meter growth was driven by a slowdown in residential new construction, reflecting broader economic and housing market conditions in NW Natural’s service territory.” · word for word

Settlement subject to WUTC approval; line extension policy remains unresolved.

“Stipulation is subject to the review and approval of the WUTC... does not address NW Natural's line extension allowance policy” · word for word

Regulatory Lag

“the failure of any regulatory commission to approve requested rate increases on a timely basis could adversely impact NW Holdings’ or NW Natural’s financial condition, results of operations and liquidity.” · word for word

Single Pipeline Dependency

“NW Natural’s distribution system is directly connected to a single interstate pipeline, which is owned and operated by Northwest Pipeline.” · word for word

Environmental Compliance Cost

“We expect that compliance with GHG emissions regulations will require additional resources and legislative or regulatory tools and will increase costs.” · word for word

Customer Growth Slowdown

“At NW Natural, the company has recently experienced housing starts below historical levels in its service territory” · word for word

Regulatory risk: rate case outcomes and policy changes could impact future earnings.

“Guidance assumes no significant changes in prevailing regulatory policies”

Increased debt load may pressure credit metrics

“Total $200M in new long-term debt; interest rates 5.13% and 5.90%.”

Loss of long-tenured executive (18 years) could lead to temporary knowledge gap, but internal promotion mitigates risk.

“Saathoff retiring after nearly 18 years; Berge promoted internally after joining in March 2025.”

Regulatory risk in rate case outcomes

“Oregon rate case approved with 9.5% ROE; Washington multi-year rate case filed but pending approval.”

Weather and economic sensitivity

“Guidance assumes average weather conditions and no significant changes in regulatory policies.”

Regulatory Risk (Washington CCA)

“NW Natural has recognized a $ 43.3 million and $ 30.9 million liability as of September 30, 2025 and 2024.” · word for word

Integration Risk (Acquisitions)

“SiEnergy Operating, LLC (SiEnergy Gas Utility or SiEnergy), which was acquired January 7, 2025” · word for word

Interest Rate Risk

“Interest expense, net $ 30,435 $ 19,060 (increase of 59.7%)”

Regulatory risk; rate case outcome could have been less favorable.

“Final order approved stipulations; resolved regulatory litigation.”