Caesars Entertainment Corporation is a diversified casino-entertainment provider. The Company�s business is primarily conducted through a wholly owned subsidiary, Caesars Entertainment Operating Company, Inc. (CEOC), although certain material properties are not owned by CEOC. As of December 31, 2012, it owned, operated, or managed, through various subsidiaries, 52 casinos in 13 United States states and seven countries. The majority of these casinos operate in the United States, primarily under the Caesars, Harrah�s, and Horseshoe brand names, and in England. In November 2012, the Company sold its Harrah's St. Louis casino to Penn National Gaming, Inc. In December 2012, the Company purchased all of the net assets of Buffalo Studios, LLC, a social and mobile games developer and owner of Bingo Blitz.