The Oregon Public Utility Commission today approved rate decreases for all three of the state's natural gas companies — Northwest Natural, Avista, and Cascade, effective Nov. 1.

The Oregon Public Utility Commission today approved rate decreases for all three of the state's natural gas companies — Northwest Natural, Avista, and Cascade, effective Nov. 1.

The PUC reported typical Avista residential customers living in Southern Oregon and using 46 therms per month will see bills decrease by $1.63, or 2.7 percent, from $59.77 to $58.14. In January, a typical residential customer's consumption of 94 therms will result in a billing decrease of $3.31, or 2.9 percent, from $115.12 to $111.81.

The commission changes rates once a year to keep them in line with wholesale prices. Some years prices are higher and some years they are lower. The adjustments vary from company to company due to different gas purchasing strategies.

— Greg Stiles