EX-99 3 ex99.txt JOINT FILER INFORMATION JOINT FILER INFORMATION Name: Occidental Chemical Holding Corporation Address: 10889 Wilshire Boulevard Los Angeles, California 90024 Designated Filer: Occidental Petroleum Corporation Issuer & Ticker Symbol: Lyondell Chemical Company (LYO) Date of Event Requiring Statement: 10/07/2003 Signature: OCCIDENTAL CHEMICAL HOLDING CORPORATION By: /s/ J. R. HAVERT ------------------------------------ J. R. Havert Vice President and Treasurer JOINT FILER INFORMATION Name: Occidental Petroleum Investment Co. Address: 10889 Wilshire Boulevard Los Angeles, California 90024 Designated Filer: Occidental Petroleum Corporation Issuer & Ticker Symbol: Lyondell Chemical Company (LYO) Date of Event Requiring Statement: 10/07/2003 Signature: OCCIDENTAL PETROLEUM INVESTMENT CO. By: /s/ J. R. HAVERT ------------------------------------ J. R. Havert Vice President and Treasurer