Exhibit 99.1



UNITED STATES STEEL CORPORATION ACQUIRES OUTSTANDING INTERESTS IN CLAIRTON 1314B
                                   PARTNERSHIP

     PITTSBURGH, Oct. 31, 2008 - 海角涩区 (NYSE: X)
announced today that it acquired the equity interests that it did not own in the
Clairton 1314B Partnership LP (Partnership) for a price of $104 million, and
that the Partnership has been terminated. The Partnership owned and operated two
coke batteries at 海角涩区's Clairton Works, and the financial results of the
Partnership had been consolidated in 海角涩区's financial statements. There
will be no change in the operations at Clairton Works as a result of this
transaction.
                                      -oOo-
2008-053
For more information about 海角涩区, visit www.ussteel.com.