<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
Consolidated  Balance Sheets at March 31, June 30 and September 30, 1998 and the
related Statements of Consolidated Operations for the three, six and nine months
ended  March 31,  June 30 and  September  30,  1998,  respectively,  restated to
reflect the April 29, 1999 pooling of interests with Argentina Gold Corp.
</LEGEND>
<MULTIPLIER>                                   1,000

<S>                                                    <C>                          <C>                          <C>
<PERIOD-TYPE>                                               3-MOS                       6-MOS                       9-MOS
<FISCAL-YEAR-END>                                     DEC-31-1998                 DEC-31-1998                 DEC-31-1998
<PERIOD-END>                                          MAR-31-1998                 JUN-30-1998                 SEP-30-1998
<CASH>                                                    156,923                     135,961                     151,984
<SECURITIES>                                              120,288                     149,699                     157,952
<RECEIVABLES>                                              48,176                      48,743                      36,935
<ALLOWANCES>                                                    0                           0                           0
<INVENTORY>                                                99,310                      83,431                      78,724
<CURRENT-ASSETS>                                          458,148                     452,037                     442,326
<PP&E>                                                  2,393,216                   2,206,329                   2,195,595
<DEPRECIATION>                                         (1,367,720)                 (1,271,791)                 (1,430,334)
<TOTAL-ASSETS>                                          1,626,004                   1,509,108                   1,318,484
<CURRENT-LIABILITIES>                                     146,720                     143,747                     158,151
<BONDS>                                                   377,264                     356,069                     354,451
<PREFERRED-MANDATORY>                                           0                           0                           0
<PREFERRED>                                                     0                           0                           0
<COMMON>                                                  228,670                     229,209                     229,251
<OTHER-SE>                                                456,455                     377,875                     178,937
<TOTAL-LIABILITY-AND-EQUITY>                            1,626,004                   1,509,108                   1,318,484
<SALES>                                                   200,472                     416,824                     609,308
<TOTAL-REVENUES>                                          216,242                     411,592                     595,010
<CGS>                                                     171,647  <F1>               351,798  <F1>               513,324  <F1>
<TOTAL-COSTS>                                             184,286  <F2>               375,975  <F2>               549,910  <F2>
<OTHER-EXPENSES>                                           23,298  <F3>                68,082  <F3>               274,946  <F3>
<LOSS-PROVISION>                                                0                           0                           0
<INTEREST-EXPENSE>                                          5,112                      10,328                      15,813
<INCOME-PRETAX>                                             3,546                     (42,793)                   (245,659)
<INCOME-TAX>                                                7,220                       2,342                     (12,998)
<INCOME-CONTINUING>                                             0                           0                           0
<DISCONTINUED>                                                  0                           0                           0
<EXTRAORDINARY>                                                 0                           0                           0
<CHANGES>                                                       0                           0                           0
<NET-INCOME>                                               (7,602)                    (50,751)                   (233,584)
<EPS-BASIC>                                               (0.03)                      (0.22)                      (1.02)
<EPS-DILUTED>                                               (0.03)                      (0.22)                      (1.02)

<FN>
<F1> Includes  Production  costs and  Depreciation,  depletion and  amortization
     from the Statement of Consolidated Operations.
<F2> Includes  Production  costs,  Depreciation,  depletion and amortization and
     Administrative  and general  expense  from the  Statement  of  Consolidated
     Operations.
<F3> Includes  Exploration  expense,  Write-downs  and  other  unusual  charges,
     Business  combination  and  integration  costs and Other  expense  from the
     Statement of Consolidated Operations.
</FN>




</TABLE>