X0202 4 2004-10-01 0 0000791348 LONE STAR TECHNOLOGIES INC LSS 0001218738 BEST RHYS J 15660 N. DALLAS PARKWAY SUITE 500 DALLAS TX 75248 1 1 0 0 Chairman and CEO Common Stock 2004-10-01 4 M 0 25000 19.0625 A 185774 D Common Stock 2004-10-01 4 S 0 25000 38.00 D 160774 D Option (right to buy) 19.0625 2004-10-01 4 M 0 25000 D 2007-02-17 Common Stock 25000 0 D Transaction effected pursuant to a Rule 10b5-1 plan dated January 27, 2004 and amended on June 24, 2004. Total shares include 3,331 shares purchased pursuant to Issuer's Employee Stock Purchase Plan and 124,500 shares of restricted stock granted under Issuer's 1985 Long-Term Incentive Plan. Cumulative installments of 12,500 shares each on and after February 17, 1998, 1999, 2000 and 2001. Employee stock option granted under Issuer's 1985 Long-Term Incentive Plan. Rhys J. Best 2004-10-04