Gas Price Information

NW Natural rates fall for 3rd year in a row

Each fall, NW Natural files for rate changes, based primarily on the wholesale cost of natural gas, plus some annual adjustments based on ongoing agreements with the commissions. These adjustments vary based on different use patterns by residential and commercial customers. Variations between Oregon and Washington are caused by differences in rate structures.

 Lower rates headed your way again


While the cost of everyday items is on the rise, the cost of natural gas is down 20%. On Sept. 15 2017, NW Natural filed with the Public Utility Commission of Oregon (PUC) for a 6.4% reduction in residential rates and a 7.3% reduction in small commercial rates. As of Nov. 1, 2017, the average homeowner will save $3.43 a month, and the average small commercial customer will save about $15.62 every month.

Natural gas prices – and consequently NW Natural’s rates – are expected to remain low during the Nov. 2017-Oct. 2018 heating year. The cost of gas continues to be lower than it was 15 years ago.

The rate decrease follows a credit on Oregon customers’ June bills. NW Natural returned $11.7 million to Oregon customers – an average of $12 a customer. The credits resulted from efficient pipeline capacity management and effective use of the company's underground natural gas storage facility at Mist, Oregon, during 2016.

  • Update: General rate case filing—For the first time in six years, NW Natural filed for a rate increase in December 2017. This filing was updated in March 2018 to take into account the effects of tax reform. In short, the company has requested a 4% increase to its revenues to cover costs to operate and maintain the natural gas distribution system while continuing to provide customers with safe and reliable service. The filing is being reviewed by the Public Utility Commission of Oregon and other stakeholders. The process could take up to 10 months with new rates effective Nov. 1, 2018.



On Sept. 12, 2017, NW Natural filed with the Washington Utilities and Transportation Commission (WUTC) for a 3.1% reduction in residential rates, and a 3.4% reduction in small-commercial rates. As of Nov. 1, 2017, the average homeowner will save about $1.60 a month, and the average small-commercial customer will save $7.52 every month.

What’s the reason for lower rates?
Three filings contribute to a drop in rates, including:

  • Purchased Gas Adjustment (PGA) – A $1.60 reduction on the average monthly residential bill and a $7.49 reduction on the average small-commercial bill. The filing trues up differences between the estimated and actual cost of natural gas, and it establishes the customer costs for natural gas from Nov. 1, 2017 - Oct. 31, 2018. 
  • Energy efficiency programs – A 0.2% increase for residential customers: 10 cent increase on monthly residential bills and 38 cent increase on small-commercial bills for energy efficiency programs that provide effective economic means for conserving natural gas.
  • Low income assistance – A 0.2% reduction for residential customers: 10 cent increase on residential bills and 42 cent increase on small-commercial bills for programs that help low-income residential customers install energy efficiency improvements and stay warm during the winter.

NW Natural’s filings are requests that are subject to public review and a decision by the WUTC. Customers may submit comments on the proposed changes at,, 1-888-333-9882, or WUTC, PO Box 47250, Olympia, WA 98504-7250. Customers can also request more information, review the filing, and find out about open meetings. The filings can also be reviewed at “Docket Search.”