<ARTICLE> 5
<LEGEND>
The following schedule contains summarized financial information extracted
from the Questar Pipeline Co. Statements of Income and Balance Sheet for the
period ended June 30, 1997, and is qualified in its entirety to such
unaudited financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           5,411
<SECURITIES>                                         0
<RECEIVABLES>                                   10,229
<ALLOWANCES>                                         0
<INVENTORY>                                      2,363
<CURRENT-ASSETS>                                19,757
<PP&E>                                         566,777
<DEPRECIATION>                                 201,269
<TOTAL-ASSETS>                                 410,377
<CURRENT-LIABILITIES>                           27,469
<BONDS>                                        134,554
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         6,551
<OTHER-SE>                                     178,974
<TOTAL-LIABILITY-AND-EQUITY>                   410,377
<SALES>                                              0
<TOTAL-REVENUES>                                52,628
<CGS>                                                0
<TOTAL-COSTS>                                   18,545
<OTHER-EXPENSES>                                 8,626
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               6,665
<INCOME-PRETAX>                                 18,814
<INCOME-TAX>                                     7,032
<INCOME-CONTINUING>                             11,782
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    11,782
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0