1 EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANTS Jurisdiction of Incorporation of Business Names of Registrant Subsidiaries Subsidiary Subsidiary - ---------------------------------------------------------------------------------------------- United Refining Company United Refining Company PA Kwik Fill of Pennsylvania Red Apple Food Mart Super Kwik Kiantone Pipeline NY None Corporation Kiantone Pipeline Kiantone Pipeline Company PA None Corporation United Refining Company Kwik-Fill, Inc. PA None of Pennsylvania Kwik-Fil, Inc. NY None Independent Gasoline & Oil NY None Company of Rochester, Inc. Bell Oil Corp. MI None PPC, Inc. OH None Super Test Petroleum, Inc. MI None Vulcan Asphalt Refining DE None Corporation United Jet Center, Inc. DE None Kiantone Pipeline None Company Kwik-Fill, Inc. None Kwik-Fil, Inc. None Independent Gasoline & None Oil Company of Rochester, Inc. Bell Oil Corp. None PPC, Inc. None Super Test Petroleum, Inc. None Vulcan Asphalt Refining None Corporation United Jet Center, Inc. None