Exhibit 99.1 SIERRA PACIFIC RESOURCES (a Nevada corporation) 20,000,000 Shares of Common Stock PURCHASE AGREEMENT Dated: August 9, 2006 TABLE OF CONTENTSSierra Pacific Resources /Nv/ • August 11th, 2006 • Electric & other services combined • New York
Company FiledAugust 11th, 2006 Industry Jurisdiction