<ARTICLE> 5 <LEGEND> The following schedule contains summarized financial information extracted from the Questar Pipeline Company Consolidated Income Statements and Balance Sheet for the period ended June 30, 1999, and is qualified in its entirety by reference to such unaudited financial statements. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> JUN-30-1999 <CASH> 0 <SECURITIES> 0 <RECEIVABLES> 10,740 <ALLOWANCES> 0 <INVENTORY> 3,245 <CURRENT-ASSETS> 15,416 <PP&E> 682,157 <DEPRECIATION> 224,039 <TOTAL-ASSETS> 543,501 <CURRENT-LIABILITIES> 72,627 <BONDS> 202,992 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 6,551 <OTHER-SE> 193,895 <TOTAL-LIABILITY-AND-EQUITY> 543,501 <SALES> 0 <TOTAL-REVENUES> 54,202 <CGS> 0 <TOTAL-COSTS> 17,720 <OTHER-EXPENSES> 9,510 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 8,215 <INCOME-PRETAX> 21,943 <INCOME-TAX> 7,949 <INCOME-CONTINUING> 13,994 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 13,994 <EPS-BASIC> 0 <EPS-DILUTED> 0