X0202 4 2007-12-20 1 0000842635 LYONDELL CHEMICAL CO LYO 0001220726 GALVIN KERRY A 1221 MCKINNEY ST., SUITE 700 HOUSTON TX 77010 0 1 0 0 Senior Vice President Common Stock 2007-12-20 4 A 0 43908 A 87909 D Common Stock 2007-12-20 4 D 0 43908 48 D 44001 D Common Stock 2007-12-20 4 D 0 44001 D 0 D Common Stock 2007-12-20 4 D 0 2627 D 0 I By 401(K) Stock Option (Right to Buy) 12.87 2007-12-20 4 D 0 41282 35.13 D 2013-02-07 Common Stock 41282 0 D Stock Option (Right to Buy) 17.55 2007-12-20 4 D 0 30553 30.45 D 2014-02-05 Common Stock 30553 0 D Stock Option (Right to Buy) 28.56 2007-12-20 4 D 0 26877 19.44 D 2015-01-20 Common Stock 26877 0 D Stock Option (Right to Buy) 24.52 2007-12-20 4 D 0 38658 23.48 D 2016-02-23 Common Stock 38658 0 D Stock Option (Right to Buy) 31.97 2007-12-20 4 D 0 42279 16.03 D 2017-02-22 Common Stock 42279 0 D Phantom Stock 2007-12-20 4 D 0 9155 48 D Common Stock 9155 0 D This reports the payout of performance awards denominated in shares of Lyondell?s common stock, on the effective date of the merger pursuant to the Merger Agreement between Lyondell and Basell and BIL Acquisition Holdings Limited (?Merger Agreement?) for the merger consideration of $48 per share. Shares of common stock disposed of on the effective date of the merger pursuant to the Merger Agreement for the merger consideration of $48 per share. The options, 1/3 which vested on February 7, 2007 and 2/3 on November 23, 2004 because the Lyondell common stock price became two times the exercise price of the stock option, were canceled pursuant to the Merger Agreement in exchange for a cash payment of $1,450,236.66 representing the difference between the exercise price of the option and the $48 per share merger consideration. The options, which vested on December 1, 2004 in connection with the acquisition of Millennium Chemicals Inc., were canceled pursuant to the Merger Agreement in exchange for a cash payment of $930,338.85 representing the difference between the exercise price of the option and the $48 per share merger consideration. The options, which 2/3 vested ratably on January 20, 2006 and January 20, 2007 and 1/3 vested on November 20, 2007 in connection with shareholder approval of the merger, were canceled pursuant to the Merger Agreement in exchange for a cash payment of $522,488.88 representing the difference between the exercise price of the option and the $48 per share merger consideration. The options, which 1/3 vested on February 23, 2007 and the remaining 2/3 on the effective date of the merger, were canceled pursuant to the Merger Agreement in exchange for a cash payment of $907,689.84 representing the difference between the exercise price of the option and the $48 per share merger consideration. The options, which vested on the effective date of the merger, were canceled pursuant to the Merger Agreement in exchange for a cash payment of $677,732.37 representing the difference between the exercise price of the option and the $48 per share merger consideration. Phantom Stock which convert on a 1 for 1 basis an provided for vesting in 3 equal annual installments beginning one year from the date of grant, was disposed of on the effective date of the merger pursuant to the Merger Agreement for the merger consideration of $48 per share. /s/ Kerry A. Galvin 2007-12-20