...American Electric Power Company, Inc. (AEP) is a public utility holding company providing generation, transmission and distribution services to approximately 5.4 million customers across 11 states stretching from Texas to Michigan. The September 2018 affirmation of AEP and its subsidiaries is based on continued improvements to AEP's risk profile as a result of actions to exit merchant generation, transition the regulated generation fleet away from coal generation, ongoing efforts to improve regulated returns and expected maintenance of consistent credit metrics, despite elevated capex....