<ARTICLE>                     5
<LEGEND>
RESTATED
Ultramar Diamond Shamrock Corporation
Third Quarter 1997
</LEGEND>
<RESTATED>
<MULTIPLIER>                            1,000
       
                 
<PERIOD-TYPE>                              9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1997
<CASH>                                         112,800
<SECURITIES>                                         0
<RECEIVABLES>                                  724,100
<ALLOWANCES>                                   (18,000)
<INVENTORY>                                    690,200
<CURRENT-ASSETS>                             1,623,400
<PP&E>                                       4,605,400
<DEPRECIATION>                              (1,048,800)
<TOTAL-ASSETS>                               5,616,700
<CURRENT-LIABILITIES>                        1,231,700
<BONDS>                                      1,920,600
<PREFERRED-MANDATORY>                          200,000
<PREFERRED>                                         17
<COMMON>                                           877
<OTHER-SE>                                   1,702,306
<TOTAL-LIABILITY-AND-EQUITY>                 5,616,700
<SALES>                                      7,577,800
<TOTAL-REVENUES>                             7,577,800
<CGS>                                        4,752,700
<TOTAL-COSTS>                                4,752,700
<OTHER-EXPENSES>                             2,521,500
<LOSS-PROVISION>                                12,200
<INTEREST-EXPENSE>                              92,400
<INCOME-PRETAX>                                220,200
<INCOME-TAX>                                    87,000
<INCOME-CONTINUING>                            130,500
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   130,500
<EPS-PRIMARY>                                     1.68
<EPS-DILUTED>                                     1.65