Duke Energy Corporation (Duke Energy) is an energy company. Duke Energy�s segments are U.S. Franchised Electric and Gas (USFE&G), Commercial Power and International Energy. The remainder of Duke Energy�s operations is presented as Other. Its regulated utility operations serve four million customers located in five states in the Southeast and Midwest United States. Its Commercial Power and International Energy business segments own and operate diverse power generation assets in North America and Latin America, including a portfolio of renewable energy assets in the United States. Duke Energy operates in the United States primarily through its direct and indirect wholly owned subsidiaries, Duke Energy Carolinas, LLC (Duke Energy Carolinas), Duke Energy Ohio, Inc., which includes Duke Energy Kentucky, Inc., and Duke Energy Indiana, Inc. Effective July 2, 2012, the Company merged with Progress Energy Inc. In July 2012, the Company acquired Chilean Campanario power plant.