Media Contact:  Sonya Headen. (702) 367-5222
Analyst Contact:Britta Carlson, (702) 367-5624

Sierra Pacific Resources (NYSE: SRP) today announced that William D. Rogers has been named to the new position of Vice President, Finance and Risk, and Corporate Treasurer.

Rogers, who has been Corporate Treasurer since joining Sierra Pacific in June 2005, now has corporate tax and risk control added to his areas of responsibility. He continues to report to Michael Yackira, Sierra Pacific Resources'Executive Vice President and Chief Financial Officer, both headquartered in Las Vegas.

"Bill's capabilities in the areas of treasury and financial planning have added significantly to our company's improving financial strength and we believe his new responsibilities will bring added experience to the very important tax and risk control areas of our company,"Yackira said.

Headquartered in Nevada, Sierra Pacific Resources is a holding company whose principal subsidiaries are Nevada Power Company, the electric utility for most of southern Nevada, and Sierra Pacific Power Company, the electric utility for most of northern Nevada and the Lake Tahoe area of California. Sierra Pacific Power Company also distributes natural gas in the Reno-Sparks area of northern Nevada. Other subsidiaries include the Tuscarora Gas Pipeline Company, which owns 50 percent interest in an interstate natural gas transmission partnership and several unregulated energy services companies.