Current Information

Historical Data Historical Segment Financial and Operational Data 10.27.2009 Five-Year Operating and Financial Summary (2004 - 2008) 03.17.2009 2009 Pocket Facts 06.27.2008   Investor Presentations KeyBanc Capital Markets Basic Materials and Packaging Conference 09.16.2009 Merrill Lynch Global Metals and Mining Conference 05.13.2009   Financial Information & News 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 Second Quarter 2009 Form 10-Q 08.14.2009 United States Steel Corporation Declares Dividend 07.28.2009 Second Quarter Earnings Release 07.28.2009 U. S. Steel Conference Call Available On Company Web Site   06.26.2009 U. S. Steel Announces Completion Of Public Offering Of Common Stock And Senior Convertible Notes Offerings   05.04.2009 First Quarter 2009 Form 10-Q   04.28.2009 United States Steel Corporation Announces Proposed Common Stock And Convertible Notes Offerings   04.27.2009 United States Steel Corporation Reports 2009 First Quarter Loss, Declares Dividend Reduction And Announces Additional Actions To Enhance Liquidity   04.27.2009 Start Time for U. S. Steel's Conference Call Changed   04.27.2009 U. S. Steel Conference Call Available On April 28, 2009   03.31.2009 2009 Proxy Statement 03.17.2009 Form 10-K for the year ended 2008 02.24.2009 United States Steel Corporation Declares Dividend 01.27.2009 Fourth Quarter Earnings Release 01.27.2009 U. S. Steel Conference Call Available On January 27 2009 01.06.2009

Notice U. S. Steel Third Quarter 2009 Earnings Conference Call and Webcast Tuesday, October 27, 2009 2:00 p.m. (eastern) Stock Quote 11/20/2009 Symbol: X Price: $41.32 Change: +0.04 (+0.1%) Volume: 7637979 Time: 3:59:00 PM ET Prior Close: $41.28 Open: $40.45 High: $41.40 Low: $40.15 Contact Dan Lesnak Manager, Investor Relations P: (412) 433-1184 F: (412) 433-1167 investorrelations@uss.com