Oregon rates

On September 15, 2026, NW Natural filed its Purchased Gas Adjustment (PGA) request with the Oregon Public Utility Commission. Residential rates will increase by about $5.08 a month for customers using an average of 53 therms per month. Small-commercial rates will increase by about $35.22 based on average usage of 250 therms per month.

Large industrial firm rates will increase by about $133.36 based on average monthly usage of 18,815 therms, and large industrial interruptible rates will decrease by about $437.28 based on average usage of 48,951 therms monthly.

Residential rates take effect October 31, 2026; non-residential rates begin November 1, 2026.

Washington rates

On September 15, 2026, NW Natural filed its Purchased Gas Adjustment (PGA) request with the Washington Utilities and Transportation Commission (WUTC). Residential customers using an average of 55 therms per month will see the PGA-affected parts of their bill go down by about $1 per month. Small-commercial bills will decrease by about $3 based on average usage of 262 therms per month.

Large industrial firm bills will decrease by about $252 based on average usage of 14,342 therms monthly, and large industrial interruptible bills will decrease by about $356 based on average usage of 10,878 therms monthly. Read more here.

New rates begin November 1, 2026.

Base rate adjustments occur from 2026 to 2029

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. Read more here.