<ARTICLE> 5
<LEGEND>
The following schedule contains summarized financial information extracted
from the Questar Gas Company Income Statement 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>                                   29,117
<ALLOWANCES>                                         0
<INVENTORY>                                     13,357
<CURRENT-ASSETS>                                44,067
<PP&E>                                         965,535
<DEPRECIATION>                                 401,343
<TOTAL-ASSETS>                                 629,092
<CURRENT-LIABILITIES>                           51,710
<BONDS>                                        225,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        22,974
<OTHER-SE>                                     250,122
<TOTAL-LIABILITY-AND-EQUITY>                   629,092
<SALES>                                              0
<TOTAL-REVENUES>                               242,476
<CGS>                                                0
<TOTAL-COSTS>                                  185,475
<OTHER-EXPENSES>                                21,664
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,848
<INCOME-PRETAX>                                 27,460
<INCOME-TAX>                                    10,038
<INCOME-CONTINUING>                             17,422
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    17,422
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0