U. S. Steel Conference Call Available on Company Web Site

PITTSBURGH, April 4, 2008 /PRNewswire-FirstCall/ -- United States Steel Corporation (NYSE: X) announced today that interested shareholders, investors and others may listen to the company's first quarter 2008 conference call with securities analysts on Tuesday, April 29, 2008, at 2 p.m. EDT. The call, which will be available via the U. S. Steel web site, will cover first quarter 2008 financial results and may include forward-looking information.

U. S. Steel officials participating in the call will be John P. Surma, chairman and CEO; Gretchen R. Haggerty, executive vice president and CFO; and W. Nick Harper, manager-investor relations.

To access the webcast, visit the web site at http://www.ussteel.com/ and click on the "Investors" button. Replays of the conference call will be available on the web site after 5 p.m. on April 29.

Financial information, including earnings releases, certain SEC filings and other investor-related material, is also available at the company's web site.

For more information about U. S. Steel, visit http://www.ussteel.com/.

SOURCE: United States Steel Corporation

CONTACT: Media, John Armstrong, +1-412-433-6792, or Analysts and
Investors, Nick Harper, +1-412-433-1184, both of United States Steel
Corporation

Web site: http://www.ussteel.com/

Company News On-Call: http://www.prnewswire.com/comp/929150.html