UAL Corporation / General Motors Corporation / NTL Incorporated / Northwest Airlines Corporation / Delta Air Lines Inc. / Company Non-Financial Bankruptcy Filings 1980 - Present Company WorldCom Inc. / General Growth Properties Inc. / Adelphia Communications Corp. / Natural Gas Petroleum & Petrochemicals Global / Description Telecommunications / New Generation Research Inc. / Chrysler LLC / Lyondell Chemical Company Calpine Corporation / AMR Corporation / Mirant Corporation / Enron Corp. / Kmart Corporation / Pacific Gas and Electric Company / Global Crossing Ltd. / Charter Communications Inc. / Delphi Corporation / /