<ARTICLE> 5 <LEGEND> This schedule contains summary financial information from the Consolidated Balance Sheets at March 31, 1997, June 30, 1997 and September 30, 1997 and the related Statements of Consolidated Operations for the three, six and nine months ended March 31, 1997, June 30, 1997 and September 30, 1997, respectively, restated to reflect the April 30, 1998 pooling of interests with Plutonic Resources Limited. </LEGEND> <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS 6-MOS 9-MOS <FISCAL-YEAR-END> DEC-31-1997 DEC-31-1997 DEC-31-1997 <PERIOD-END> MAR-31-1997 JUN-30-1997 SEP-30-1997 <CASH> 178,929 97,589 78,366 <SECURITIES> 115,202 163,788 168,882 <RECEIVABLES> 52,624 42,122 37,897 <ALLOWANCES> 0 0 0 <INVENTORY> 140,423 128,118 136,387 <CURRENT-ASSETS> 511,757 454,144 448,855 <PP&E> 2,315,637 2,311,166 2,299,986 <DEPRECIATION> 1,040,457 1,064,013 1,192,567 <TOTAL-ASSETS> 1,977,937 1,853,690 1,709,692 <CURRENT-LIABILITIES> 232,028 131,981 132,975 <BONDS> 253,714 347,255 344,294 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 0 0 0 <COMMON> 210,475 210,475 210,491 <OTHER-SE> 821,961 718,725 568,287 <TOTAL-LIABILITY-AND-EQUITY> 1,977,937 1,853,690 1,709,692 <SALES> 234,777 456,012 666,340 <TOTAL-REVENUES> 317,338 543,398 761,135 <CGS> 204,433 <F1> 393,311 <F1> 577,401 <F1> <TOTAL-COSTS> 214,225 <F2> 415,132 <F2> 611,738 <F2> <OTHER-EXPENSES> 12,577 <F3> 98,615 <F3> 303,896 <F3> <LOSS-PROVISION> 0 0 0 <INTEREST-EXPENSE> 4,868 10,281 14,778 <INCOME-PRETAX> 85,668 19,370 (169,277) <INCOME-TAX> 34,905 31,047 (3,343) <INCOME-CONTINUING> 48,256 (16,601) (172,162) <DISCONTINUED> 0 0 0 <EXTRAORDINARY> 0 0 0 <CHANGES> 0 0 0 <NET-INCOME> 48,256 (16,601) (172,162) <EPS-PRIMARY> 0.23 (0.08) (0.82) <EPS-DILUTED> 0.23 (0.08) (0.82) <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 Statement of Consolidated Operations. <F3> Includes Exploration expense, Write-downs and other unusual charges, and Other expense from Statement of Consolidated Operations. </FN>