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Online Contact Form
Phone 866.694.1262
Fax 866.257.1795
Hours: 7:30am - 4:30pm (CST) M-F

Online Contact Form
Phone 888.451.3911
Fax 888.354.9837
Hours 7:30am - 4:30pm (CST) M-F

Ameren Illinois 1.800.755.5000

Corporate Offices

Illinois
1500 Eastport Plaza Drive
Collinsville, IL 62234

Ohio
312 Walnut Street, Suite 1500
Cincinnati, Ohio  45202

Dynegy Inc. Headquarters
601 Travis Street
Houston, Texas  77002

Dynegy Corporate Communications / Media Relations
713.767.5800