<ARTICLE> 5
<LEGEND>
The following schedule contains summarized financial information extracted
from the Mountain Fuel Supply Company Statements of Income and Balance Sheet
for the period ended September 30, 1997, and is qualified in its entirety
by reference to such unaudited statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1997
<CASH>                                               0
<SECURITIES>                                         0
<RECEIVABLES>                                   23,112
<ALLOWANCES>                                         0
<INVENTORY>                                     19,253
<CURRENT-ASSETS>                               105,496
<PP&E>                                         858,741
<DEPRECIATION>                                 346,947
<TOTAL-ASSETS>                                 636,761
<CURRENT-LIABILITIES>                          111,462
<BONDS>                                        207,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        22,974
<OTHER-SE>                                     189,710
<TOTAL-LIABILITY-AND-EQUITY>                   636,761
<SALES>                                              0
<TOTAL-REVENUES>                               286,115
<CGS>                                                0
<TOTAL-COSTS>                                  224,905
<OTHER-EXPENSES>                                29,865
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              13,693
<INCOME-PRETAX>                                 20,293
<INCOME-TAX>                                     6,361
<INCOME-CONTINUING>                             13,932
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    13,932
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0