<ARTICLE> 5
<LEGEND>
VASTAR RESOURCES, INC.: FINANCIAL DATA SCHEDULE FOR THE YEAR ENDING DECEMBER 31,
1999. THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENT OF INCOME AND THE CONSOLIDATED BALANCE SHEET AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
RULE 5-03-04 SPECIFICALLY DOES NOT ADDRESS SG&A COSTS AS A REQUIREMENT
IN THE FDS.
</LEGEND>

                             
<MULTIPLIER>                    1,000
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                          40,600
<SECURITIES>                                         0
<RECEIVABLES>                                  217,400
<ALLOWANCES>                                         0
<INVENTORY>                                      7,000
<CURRENT-ASSETS>                               307,100
<PP&E>                                       6,287,900
<DEPRECIATION>                               3,967,700
<TOTAL-ASSETS>                               2,710,000
<CURRENT-LIABILITIES>                          342,900
<BONDS>                                        975,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,000
<OTHER-SE>                                     805,000
<TOTAL-LIABILITY-AND-EQUITY>                 2,710,000
<SALES>                                      1,107,200
<TOTAL-REVENUES>                             1,175,500
<CGS>                                          673,800
<TOTAL-COSTS>                                  858,400
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              77,300
<INCOME-PRETAX>                                185,100
<INCOME-TAX>                                  (28,000)
<INCOME-CONTINUING>                            213,100
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   213,100
<EPS-BASIC>                                       2.19
<EPS-DILUTED>                                     2.16