X0202 4 2007-11-20 0 0000842635 LYONDELL CHEMICAL CO LYO 0001188511 SMITH DAN F 1221 MCKINNEY, SUITE 700 HOUSTON TX 77010 1 1 0 0 Chairman, President and CEO Common Stock 2007-11-20 4 A 0 99294 A 470290 D Common Stock 2007-11-20 4 D 0 99294 47.01 D 370996 D Common Stock 2007-11-20 4 M 0 8246 A 379242 D Common Stock 2007-11-20 4 D 0 8246 46.52 D 370996 D Common Stock 28726 I By 401(K) Phantom Stock 2007-11-20 4 M 0 8246 D Common Stock 8246 0 D This reports the payout of a performance award denominated in shares of the Company?s common stock pursuant to the terms of the award in connection with Lyondell shareholder approval of the merger of Lyondell with a subsidiary of Basell AF pursuant to the Agreement and Plan of Merger dated July 16, 2007. The amount of the payout is based on the fair market value of 99,294 shares of common stock. Phantom Stock, which provided for vesting in 3 equal annual installments beginning one year from the date of grant, subject to earlier vesting upon specified events, vested and was settled in cash pursuant to the terms of the award in connection with Lyondell shareholder approval of the merger. The amount of the payout is based on the closing price of the Company?s common stock on the date of shareholder approval of $46.52. Converts on a 1 for 1 basis. /s/ KERRY A. GALVIN as Attorney In Fact for Dan F. Smith 2007-11-21