<ARTICLE> 5 <MULTIPLIER> 1,000,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> DEC-31-1998 <CASH> 49 <SECURITIES> 0 <RECEIVABLES> 1,743 <ALLOWANCES> 0 <INVENTORY> 197 <CURRENT-ASSETS> 2,492 <PP&E> 35,638 <DEPRECIATION> 20,730 <TOTAL-ASSETS> 18,407 <CURRENT-LIABILITIES> 4,696 <BONDS> 8,642 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 755 <TOTAL-LIABILITY-AND-EQUITY> 18,407 <SALES> 12,378 <TOTAL-REVENUES> 12,378 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 9,329 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 543 <INCOME-PRETAX> 2,419 <INCOME-TAX> 911 <INCOME-CONTINUING> 1,508 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,508 <EPS-PRIMARY> 3.05 <EPS-DILUTED> 3.02