<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND> THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM COLORADO INTERSTATE GAS COMPANY FORM
10-Q QUARTERLY REPORT FOR THE PERIOD ENDED JUNE 30,
2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 628
<SECURITIES> 0
<RECEIVABLES> 388,856
<ALLOWANCES> 0
<INVENTORY> 8,159
<CURRENT-ASSETS> 438,817
<PP&E> 1,373,193
<DEPRECIATION> 722,268
<TOTAL-ASSETS> 1,204,463
<CURRENT-LIABILITIES> 163,885
<BONDS> 279,631
0
0
<COMMON> 27,561
<OTHER-SE> 568,138
<TOTAL-LIABILITY-AND-EQUITY> 1,204,463
<SALES> 176,965
<TOTAL-REVENUES> 188,183
<CGS> 0
<TOTAL-COSTS> 94,712
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 12,404
<INCOME-PRETAX> 81,067
<INCOME-TAX> 29,894
<INCOME-CONTINUING> 51,173
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 51,173
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>