Duff & Phelps Utility and Infrastructure Fund Inc en büyük gelir kaynağı Private Education Loans and Other Education-related Services olup, en son kar bildiriminde geliri 1,849,050,000 dir. Coğrafi olarak, United States , Duff & Phelps Utility and Infrastructure Fund Inc için ana pazar olup, geliri 1,849,050,000 dir.