<ARTICLE>               5
<LEGEND>
AMENDED
Ultramar Diamond Shamrock Corporation
Year ended 12/31/97
</LEGEND>
<RESTATED>
<MULTIPLIER>             1,000
       
                      
<PERIOD-TYPE>                                  12-MOS
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 JAN-01-1997
<PERIOD-END>                                   DEC-31-1997
<CASH>                                              92,000
<SECURITIES>                                             0
<RECEIVABLES>                                      690,100
<ALLOWANCES>                                       (16,200)
<INVENTORY>                                        741,000
<CURRENT-ASSETS>                                 1,610,800
<PP&E>                                           4,654,300
<DEPRECIATION>                                  (1,093,300)
<TOTAL-ASSETS>                                   5,594,700
<CURRENT-LIABILITIES>                            1,250,700
<BONDS>                                          1,866,400
<PREFERRED-MANDATORY>                              200,000
<PREFERRED>                                             17
<COMMON>                                               877
<OTHER-SE>                                       1,685,706
<TOTAL-LIABILITY-AND-EQUITY>                     5,594,700
<SALES>                                         10,882,400
<TOTAL-REVENUES>                                10,882,400
<CGS>                                            6,817,500
<TOTAL-COSTS>                                    6,817,500
<OTHER-EXPENSES>                                 3,665,600
<LOSS-PROVISION>                                    14,900
<INTEREST-EXPENSE>                                 131,700
<INCOME-PRETAX>                                    275,200
<INCOME-TAX>                                       110,200
<INCOME-CONTINUING>                                159,600
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                     (4,800)
<CHANGES>                                               0
<NET-INCOME>                                       154,800
<EPS-PRIMARY>                                         1.93
<EPS-DILUTED>                                         1.88