Cascade Natural Gas Corp. has filed a request to increase natural gas prices by 19 percent for customers in Washington starting Nov. 1.
The request is filed with the Washington Utilities and Transportation Commission.
The request, coupled with the end of a year-long refund, means a residential customer using 54 therms a month can expect an increase of $8.43 a month, or $101 a year.
A commercial customer using 266 therms a month would see an increase of about $500 a year.
"The cost of gas, which includes pipeline, reservation and storage costs, is up slightly over last year," said Scott Madison, Cascade general manager, in a statement. "However, overall costs remain lower than just three years ago."
The cost of gas is the largest segment of a customer's bill and is passed directly to the customer with no return to Cascade.