The common stock dividend is $.4250 per share payable on May 13, 2011, to shareowners of record on close of business April 29, 2011.
Dividends on common stock have been paid for 262 consecutive quarters since 1946.
Alliant Energy is an energy-services provider with subsidiaries serving approximately 1 million electric and over 412,000 natural gas customers. Providing its customers in the Midwest with regulated electric and natural gas service is the company's primary focus.Alliant Energy, headquartered in Madison, Wis., is a Fortune 1000 company traded on the New York Stock Exchange under the symbol LNT. For more information, visit the company's Web site at www.alliantenergy.com.