EXHIBIT 10.16 SECOND AMENDED AND RESTATED JANUARY 1999 STOCKHOLDERS' AGREEMENT This Second Amended and Restated January 1999 Stockholders' Agreement (this "Agreement") is entered into as of December 17, 1999, by and among McLeodUSA Incorporated, a...Stockholders' Agreement • March 29th, 2000 • Alliant Energy Corp • Electric & other services combined • Delaware
