Recent news. Ameren announces creation of Ameren Transmission Company - ATX - dedicated to investing in needed new transmission. More information available: News Release and Video, Maureen Borkowski, president and CEO of newly formed company.

Profile. Ameren Corporation (NYSE: AEE) is among the nation's largest investor-owned electric and gas utilities, with about $24 billion in assets. The largest electric utility in Missouri and the second largest in Illinois, Ameren companies provide energy services to 2.4 million electric and nearly one million natural gas customers throughout its 64,000-square-mile territory. 

Created by the year-end 1997 merger of Union Electric Company and Central Illinois Public Service Company, the company grew in 2003 with the acquisition of Central Illinois Light Company and again in 2004 with the acquisition of Illinois Power Company. Ameren prides itself on a long, successful tradition of financial strength, cost containment, low rates and highly rated customer service, as well as nine decades of uninterrupted cash dividend payments to stockholders.
 
A long history of financial strength. Ameren is well positioned to succeed with a strong balance sheet, a solid asset base, and a firm commitment to increasing value for shareholders. Here, you’ll be able to find information about our past and current stock performance, financial data, corporate information, individual account information, and more.
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		Defend My Dividend  Ameren Corporation is proud to partner with Defend My Dividend, a national grassroots advocacy campaign that gives utility investors a powerful and unified voice with a single mission: to make permanent low dividend tax rates beyond 2010. View additional information.