Duke Energy is one of the largest electric power holding companies in the United States. Headquartered in Charlotte, N.C., its regulated utility operations serve 4 million electric customers in the Carolinas, Indiana, Ohio and Kentucky, and a half-million natural gas customers in Ohio and Kentucky. Its Commercial Power and International Energy business segments own and operate diverse power generation assets in North America and Latin America, including a growing portfolio of renewable energy assets in the United States. A Fortune 500 company, Duke Energy is listed on the New York Stock Exchange under the symbol DUK. More information is available at: www.duke-energy.com.