Current Information

Historical Data Historical Segment Financial and Operational Data 07.27.2010 Five-Year Operating and Financial Summary (2005 - 2009) 03.18.2010 2010 Pocket Facts 06.25.2010   Investor Presentations Deutsche Bank 2010 Industrials Conference 06.24.2010 Morgan Stanley Global Basic Materials Conference 02.25.2010   Financial Information & News United States Steel Corporation Declares Dividend   07.27.2010 Second Quarter 2010 Earnings Release   07.27.2010 U. S. Steel Conference Call Available On Company Web Site   06.29.2010 First Quarter 2010 Earnings Release   04.27.2010 United States Steel Corporation Declares Dividend   04.27.2010 U. S. Steel Conference Call Available On Company Web Site   03.29.2010 2010 Proxy Statement 03.18.2010 United States Steel Corporation Announces Proposed Senior Notes Offering 03.16.2010 United States Steel Corporation Announces Pricing On Senior Notes Offering 03.16.2010 Form 10-K for the year ended 2009 02.25.2010 United States Steel Corporation Declares Dividend   01.26.2010 Fourth Quarter Earnings Release   01.26.2010 U. S. Steel Conference Call Available On Company Web Site   12.23.2009 Third Quarter Earnings Release   10.27.2009 United States Steel Corporation Declares Dividend   10.27.2009 U. S. Steel Conference Call Available On Company Web Site   10.01.2009

Notice U. S. Steel 2nd Quarter 2010 Earnings Conference Call and Webcast Tuesday, July 27, 2010 2:00 p.m. (eastern) Stock Quote 9/2/2010 Symbol: X Price: $45.27 Change: +0.83 (+1.87%) Volume: 7672178 Time: 3:00:00 PM ET Prior Close: $44.44 Open: $44.65 High: $45.60 Low: $43.96 Contact Dan Lesnak Manager, Investor Relations P: (412) 433-1184 F: (412) 433-1167 investorrelations@uss.com