Castleton Commodities International, LLC (CCI) is a privately held global merchant firm that is involved in commodity trading and is active in a wide spectrum of global energy markets. Under the name Louis Dreyfus Energy, the company was formed in 1997 by the Louis Dreyfus Company as a subsidiary to trade energy. By 2006 Louis Dreyfus Energy was ranked as one of the 10 largest natural gas marketers within the United States. The company has worldwide interests covering "the physical delivery of petroleum and natural gas as well as financial interests in energy".