<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> MAR-31-1998 <CASH> 1,127 <SECURITIES> 1,924 <RECEIVABLES> 30,577 <ALLOWANCES> 1,711 <INVENTORY> 0 <CURRENT-ASSETS> 511,084 <PP&E> 1,756,461 <DEPRECIATION> 1,337,202 <TOTAL-ASSETS> 1,000,414 <CURRENT-LIABILITIES> 434,675 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 206,713 <OTHER-SE> 25,652 <TOTAL-LIABILITY-AND-EQUITY> 1,000,414 <SALES> 17,804 <TOTAL-REVENUES> 19,752 <CGS> 0 <TOTAL-COSTS> 10,739 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 6,750 <INCOME-PRETAX> 2,263 <INCOME-TAX> 0 <INCOME-CONTINUING> 2,263 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,263 <EPS-PRIMARY> 0 <EPS-DILUTED> 0