Oregon rates

On August 3, 2026, NW Natural filed its Purchased Gas Adjustment (PGA) request with the Oregon Public Utility Commission. If the rate changes are approved as initially filed, residential rates will increase by about $6 a month for customers using an average of 53 therms per month. Small-commercial rates will increase by about $37 based on average usage of 250 therms per month.

Large industrial firm rates will increase by about $289 based on average monthly usage of 18,815 therms, and large industrial interruptible rates will decrease by about $34 based on average usage of 48,951 therms monthly.

We will keep this page updated with rate-change projections. New residential rates take effect October 31, 2026; non-residential rates begin November 1, 2026.

 

Washington rates

Notice of rate increase in Washington: New rates go into effect August 1, 2026

NW Natural’s general rate change request, filed with the Washington Utilities and Transportation Commission (WUTC) on August 29, 2025, has been approved. It’s been five years since NW Natural filed for a rate case to cover system investments. Since then, costs have escalated from inflation, higher material prices and operations and maintenance expenses. Read more here.

To continue delivering safe, reliable service, NW Natural is implementing a three-year adjustment under the state’s new multi-year rate statute, which aims to help customers plan for the impacts associated with increasing costs.

The average residential customer who has been connected to our system on or before July 25, 2021 sees an increase of about 20% for the first year (August 2026 – July 2027), followed by about a 5% increase for each of the next two years. The average small-commercial customer sees an increase of about 21% for the first year (August 2026 – July 2027), followed by about a 6% increase for each of the next two years.

For residential customers with newer connections, those increases are about 16% for the first year, followed by increases of about 4% for each of the next two years. Newer connected small-commercial customers see an increase of about 17% for the first year (August 2026 – July 2027), followed by about a 5% increase for each of the next two years.

Large industrial firm bills increased by about 12% based on average use of 11,973 therms monthly for the first year (August 2026 – July 2027), followed by about a 3% increase for each of the next two years. Large industrial interruptible bills increased by about 10% based on average use of 15,958 therms monthly for the first year, followed by about a 4% increase in the second year and 3% in the third year.

Large commercial firm bills increased by about 18% based on average use of 20,522 therms monthly for the first year (August 2026 – July 2027), followed by about a 5% increase for each of the next two years. Large commercial interruptible bills increased by about 12% based on average use of 39,724 therms monthly, followed by about a 3% increase for each of the next two years.

Large commercial transport bills increased by about 20% based on average use of 21,082 therms monthly for the first year (August 2026 – July 2027), followed by about a 5% increase for the next two years. Large industrial transport bills increased by about 4% based on an average use of 67,074 therms monthly in the first year, and less than 1% for the remaining two years.