Duke Energy Corporation, through its subsidiaries, operates as an energy company in the United States. The company operates through two segments: Electric Utilities and Infrastructure (EU&I); and Gas Utilities and Infrastructure (GU&I). The EU&I segment generates, transmits, distributes, and sells electricity to customers in the Southeast and Midwest regions. It generates electricity through coal, hydroelectric, natural gas, oil, renewables, and nuclear fuel. This segment also engages in the wholesale of electricity to municipalities, electric cooperative utilities, and other load-serving entities. The GU&I segment distributes natural gas to customers in the residential, commercial, industrial, and power generation natural gas sectors; and invests in pipeline transmission projects, renewab…