Duke Energy Ohio, Inc. engages in the transmission and distribution of electricity in portions of Ohio and Kentucky, in the generation and sale of electricity in portions of Kentucky, and the transportation and sale of natural gas in portions of Ohio and Kentucky. The firm also conducts competitive auctions for retail electricity supply in Ohio whereby recovery of the energy price is from retail customers. It operates through two segments: Electric Utilities and Infrastructure, and Gas Utilities and Infrastructure. The Electric Utilities and Infrastructure segment transmits and distributes electricity in portions of Ohio and generates, distributes and sells electricity in portions of Northern Kentucky. The Gas Utilities and Infrastructure segment transports and sells natural gas in portions of Ohio and Northern Kentucky. The company was founded on May 3, 2005 and is headquartered in Cincinnati, OH.