SEATTLE (AP) — A Washington state judge has agreed with an electric utility and permanently blocked the public release of some economic information about its coal-burning units.

The Sierra Club wanted the redacted information to be made public, saying people should have data about the financial risks of operating coal-burning power plants.

PacifiCorp, based in Portland, Oregon, argued that releasing the confidential information would put it at a competitive disadvantage in the marketplace.

A Thurston County Superior Court judge granted the permanent injunction during a hearing Friday.

PacifiCorp spokesman Bob Gravely says the company is pleased with the court's decision and plans on working a more complete analysis in coming months.

Sierra Club managing attorney Gloria Smith said in a statement that it's unfortunate the public won't get to see PacifiCorp's analysis of the cost of their coal plants.