Alliant Energy Corporation (Alliant Energy) is a regulated investor-owned public utility holding company. The Company provides regulated electric and natural gas services in Iowa, Wisconsin and Minnesota. The Company’s business segments are Utility and Non-regulated, Parent and Other. The Utility segment includes the operations of Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). The utility business segment includes utility electric operations, utility gas operations and utility other, which includes steam operations and the unallocated portions of the utility business. The Company’s Non-regulated, Parent and Other segment includes the operations of Alliant Energy Resources, LLC (Resources) and its subsidiaries; Alliant Energy Corporate Services, Inc. (Corporate Services); the Alliant Energy parent company, and any Alliant Energy parent company consolidating adjustments.