X0202 4 2007-06-14 1 0000791348 LONE STAR TECHNOLOGIES INC LSS 0001106716 KELLEY ROBERT 333 WEST MAIN STE. 300 ARDMORE OK 73402 1 0 0 0 Common Stock 2007-06-14 4 D 0 3800 67.50 D 0 D Restricted Stock 2007-06-14 4 D 0 1600 67.50 D 0 D Restricted Stock Units 2007-06-14 4 D 0 7300 67.50 D 0 D Stock Option 20.6700 2007-06-14 4 D 0 7000 D Common Stock 7000 0 D Stock Option 45.3600 2007-06-14 4 D 0 9375 D Common Stock 9375 0 D Stock Option 27.5250 2007-06-14 4 D 0 12500 D Common Stock 12500 0 D Stock Option 23.3900 2007-06-14 4 D 0 12500 D Common Stock 12500 0 D Pursuant to the Agreement and Plan of Merger, dated March 28, 2007, by and among United States Steel Corporation, WP Acquisition Holding Corp. and Lone Star Technologies, Inc., at the effective time of the merger, each outstanding share of Lone Star common stock converted into the right to receive $67.50 in cash, without interest. Pursuant to the Agreement and Plan of Merger, dated March 28, 2007, by and among United States Steel Corporation, WP Acquisition Holding Corp. and Lone Star Technologies, Inc., at the effective time of the merger, each restricted share of Lone Star common stock became fully vested and converted into the right to receive $67.50 in cash, without interest. Pursuant to the Agreement and Plan of Merger, dated March 28, 2007, by and among United States Steel Corporation, WP Acquisition Holding Corp. and Lone Star Technologies, Inc., at the effective time of the merger, each restricted stock unit became fully vested and converted into the right to receive $67.50 in cash, without interest. Pursuant to the Agreement and Plan of Merger, dated March 28, 2007, by and among United States Steel Corporation, WP Acquisition Holding Corp. and Lone Star Technologies, Inc., at the effective time of the merger, each outstanding option to purchase Lone Star common stock became fully vested and converted into the right to receive an amount in cash equal to the excess of $67.50 over the exercise price per share of common stock subject to such option. Robert Kelley, by Robert F. Spears, Attorney-In-Fact 2007-06-14