<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from the consolidated statement of earnings and the consolidated balance sheets and is qualified in its entirety by reference to such financial statements. </LEGEND> <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <EXCHANGE-RATE> 1 <CASH> 170,268 <SECURITIES> 0 <RECEIVABLES> 118,615 <ALLOWANCES> 19,222 <INVENTORY> 43,944 <CURRENT-ASSETS> 283,823 <PP&E> 1,671,260 <DEPRECIATION> 725,676 <TOTAL-ASSETS> 1,401,441 <CURRENT-LIABILITIES> 142,567 <BONDS> 320,167 <PREFERRED-MANDATORY> 29,343 <PREFERRED> 0 <COMMON> 22,486 <OTHER-SE> 532,757 <TOTAL-LIABILITY-AND-EQUITY> 1,401,441 <SALES> 412,148 <TOTAL-REVENUES> 541,347 <CGS> 302,147 <TOTAL-COSTS> 409,332 <OTHER-EXPENSES> 48,450 <LOSS-PROVISION> 9,878 <INTEREST-EXPENSE> 16,950 <INCOME-PRETAX> 56,737 <INCOME-TAX> 21,788 <INCOME-CONTINUING> 34,949 <DISCONTINUED> 0 <EXTRAORDINARY> 46,960 <CHANGES> 8,193 <NET-INCOME> 90,102 <EPS-PRIMARY> 4.01<F1> <EPS-DILUTED> 3.97<F2> <FN> <F1>EPS - Primary is EPS Basic per SFAS 128 <F2>EPS - Fully Diluted is EPS - Diluted per SFAS 128 </FN>