<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 September 30, 1999, and is qualified in its entirety by
reference to such unaudited financial statements.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                               0
<SECURITIES>                                         0
<RECEIVABLES>                                   15,669
<ALLOWANCES>                                         0
<INVENTORY>                                     23,693
<CURRENT-ASSETS>                                53,379
<PP&E>                                         981,176
<DEPRECIATION>                                 410,897
<TOTAL-ASSETS>                                 645,258
<CURRENT-LIABILITIES>                           70,510
<BONDS>                                        225,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        22,974
<OTHER-SE>                                     238,505
<TOTAL-LIABILITY-AND-EQUITY>                   645,258
<SALES>                                              0
<TOTAL-REVENUES>                               297,299
<CGS>                                                0
<TOTAL-COSTS>                                  235,993
<OTHER-EXPENSES>                                32,680
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              14,357
<INCOME-PRETAX>                                 16,793
<INCOME-TAX>                                     5,238
<INCOME-CONTINUING>                             11,555
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    11,555
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0