Vectren Corporation was a Fortune 1000 energy holding company headquartered in Evansville, Indiana. Through its utility subsidiaries (Vectren North, Vectren South, and Vectren Energy Delivery of Ohio), the company distributed natural gas to approximately one million business and residential customers in Indiana and Ohio. It also distributed electricity to 141,000 customers and had 1,425 MW of primarily coal-fired generating capacity in Indiana. Vectren's nonutility subsidiaries and affiliates offered energy-related products and services to customers throughout the Midwest and Southeast. These included energy performance services and energy infrastructure services.