<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM TESORO
PETROLEUM CORPORATION'S FINANCIAL STATEMENTS AS OF AND FOR THE YEAR ENDED
DECEMBER 31, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           8,352
<SECURITIES>                                         0
<RECEIVABLES>                                   77,655
<ALLOWANCES>                                     1,373
<INVENTORY>                                     87,359
<CURRENT-ASSETS>                               181,835
<PP&E>                                         718,346
<DEPRECIATION>                                 304,523
<TOTAL-ASSETS>                                 627,808
<CURRENT-LIABILITIES>                          107,495
<BONDS>                                        115,314
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,418
<OTHER-SE>                                     328,546
<TOTAL-LIABILITY-AND-EQUITY>                   627,808
<SALES>                                        937,917
<TOTAL-REVENUES>                               943,460
<CGS>                                          824,991
<TOTAL-COSTS>                                  824,991
<OTHER-EXPENSES>                                46,363
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               6,699
<INCOME-PRETAX>                                 49,120
<INCOME-TAX>                                    18,435
<INCOME-CONTINUING>                             30,685
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    30,685
<EPS-PRIMARY>                                     1.16
<EPS-DILUTED>                                     1.14