<TABLE> <S> <C>
<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SOUTHWESTERN
PUBLIC SERVICE COMPANY CONDENSED BALANCE SHEET AS OF JUNE 30, 2000 AND CONDENSED
STATEMENTS OF INCOME AND CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000092521
<NAME> Southwestern Public Service Company
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> JUN-30-2000
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 1,783,617
<OTHER-PROPERTY-AND-INVEST> 125,048
<TOTAL-CURRENT-ASSETS> 228,211
<TOTAL-DEFERRED-CHARGES> 143,221
<OTHER-ASSETS> 0
<TOTAL-ASSETS> 2,280,097
<COMMON> 0
<CAPITAL-SURPLUS-PAID-IN> 353,099
<RETAINED-EARNINGS> 421,854
<TOTAL-COMMON-STOCKHOLDERS-EQ> 774,953
100,000
0
<LONG-TERM-DEBT-NET> 520,590
<SHORT-TERM-NOTES> 0
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 311,350
<LONG-TERM-DEBT-CURRENT-PORT> 0
0
<CAPITAL-LEASE-OBLIGATIONS> 0
<LEASES-CURRENT> 0
<OTHER-ITEMS-CAPITAL-AND-LIAB> 573,204
<TOT-CAPITALIZATION-AND-LIAB> 2,280,097
<GROSS-OPERATING-REVENUE> 472,875
<INCOME-TAX-EXPENSE> 27,446
<OTHER-OPERATING-EXPENSES> 373,752
<TOTAL-OPERATING-EXPENSES> 401,198
<OPERATING-INCOME-LOSS> 71,677
<OTHER-INCOME-NET> 6,236
<INCOME-BEFORE-INTEREST-EXPEN> 77,913
<TOTAL-INTEREST-EXPENSE> 31,011
<NET-INCOME> 33,244
0
<EARNINGS-AVAILABLE-FOR-COMM> 33,244
<COMMON-STOCK-DIVIDENDS> 19,674
<TOTAL-INTEREST-ON-BONDS> 20,816
<CASH-FLOW-OPERATIONS> 50,162
<EPS-BASIC> 0.00
<EPS-DILUTED> 0.00
</TABLE>
