---
schema_version: "secwatch.filing_event.v1"
accession: "0001733998-24-000118"
form_type: "8-K"
ticker: "NWN"
cik: "0001733998"
company_name: "Northwest Natural Holding Co"
filed_at: "2024-10-29T23:59:59+00:00"
generated_at: "2026-05-30T09:20:15.865556+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# OPUC approves $93.3M rate increase; $13.7M charge leads to guidance cut

## Summary
- OPUC approved a $93.3M revenue requirement increase, down from $154.9M requested.
- Rate base reduced by $13.7M for undepreciated line extension costs, causing a $0.26/share after-tax charge in Q4 2024.
- 2024 GAAP EPS guidance revised down to $1.94-$2.14 from $2.20-$2.40; non-GAAP unchanged.
- Approved ROE of 9.4% on a 50% equity capital structure; new rates effective Nov 1, 2024.
- Line extension allowance phased out by Nov 1, 2027, as previously ordered.

## SEC filing metadata
- accession: 0001733998-24-000118
- form_type: 8-K
- ticker: NWN
- cik: 0001733998
- company_name: Northwest Natural Holding Co
- filed_at: 2024-10-29T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 7.01, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1733998/000173399824000118/0001733998-24-000118-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/73020/000173399824000118/nwn-20241025.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001733998-24-000118
- JSON: https://secwatch.observer/filing/0001733998-24-000118.json
- Plain text: https://secwatch.observer/filing/0001733998-24-000118.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.