AILIO OTC

Ameren Illinois Company (AILIO), an entity incorporated in Illinois, functions as a subsidiary of Ameren Corporation. This company manages a rate-regulated utility business throughout Illinois, concentrating on the transmission and distribution of both electricity and natural gas. Its operations are structured into three main segments: Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Illinois Transmission. While the Electric Distribution and Natural Gas segments handle their respective utility operations within Ameren Illinois, the Transmission segment is distinctive for encompassing the aggregated electric transmission assets from both Ameren Illinois and ATXI. A significant portion of the company's revenue is generated by the Ameren Illinois Electric Distribution segment.