SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549



                                    FORM 8-K


                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 or 15(d) of the
                         SECURITIES EXCHANGE ACT OF 1934


          Date of report (Date of earliest event reported) May 30, 2000

             Exact name of registrant as specified in its
             charter, State or other jurisdiction of
             incorporation or organization, Address of
Commission   principal executive offices and Registrant's         IRS Employer
File Number  Telephone Number, including area code            Identification No.
- -----------  --------------------------------------------     ------------------

1-12927         NEW CENTURY ENERGIES, INC.                         84-1334327
                (a Delaware Corporation)
                1225 17th Street
                Denver, Colorado  80202
                Telephone (303) 571-7511


1-3789          SOUTHWESTERN PUBLIC SERVICE COMPANY                75-0575400
                (a New Mexico Corporation)
                Tyler at Sixth
                Amarillo, Texas  79101
                Telephone (303) 571-7511









         This combined Form 8-K is separately filed by New Century Energies Inc.
("NCE") and Southwestern Public Service Company ("SPS").  Information  contained
herein  relating to any  individual  company is filed by such company on its own
behalf.  Each registrant  makes  representations  only as to itself and makes no
other  representations  whatsoever  as to  information  relating  to  the  other
registrant.

Item 5.  OTHER EVENTS

     On May 30, 2000, the Public Utility  Commission of Texas ("PUCT")  issued a
rate  order which  approved  the  Stipulation  dated  April 18,  2000,  that was
entered  into  with the  staff of the PUCT and other  significant  parties.  The
Stipulation  specifically  addressed  SPS'  implementation  plans  to  meet  the
requirements  of the Texas  restructuring  legislation  enacted in June 1999. In
summary, the Stipulation provides for the implementation of full retail customer
choice by SPS in its Texas service region,  including the future  divestiture of
approximately  64-71% of the generation capacity owned by SPS and its affiliates
(for additional discussion,  refer to the combined NCE and SPS Form 10-Q for the
quarter ended March 31, 2000).

         With the issuance of a final written order by the PUCT  addressing  the
implementation of electric utility  restructuring for SPS,  management  believes
that  sufficient  details of a transition plan to competition now exist allowing
for a  reasonable  determination  of the  impacts  of the  deregulation  of SPS'
generation  business.  Accordingly,  SPS will  discontinue  the  application  of
Statement of Financial Accounting Standards ("SFAS") No. 71, "Accounting for the
Effects of Certain Types of Regulation", for that portion of its business during
the second  quarter  of 2000.  SPS will apply the  provisions  of SFAS No.  101,
"Regulated  Enterprises  - Accounting  for the  Discontinuation  of SFAS 71" and
Emerging Issues Task Force Consensus No. 97-4,  "Deregulation  of the Pricing of
Electricity - Issues Related to the  Application  of FASB  Statements No. 71 and
101 for SPS'  electric  generation  business.  While the above  rate  order only
addresses Texas operations,  SPS plans to pursue a similar strategy to implement
the restructuring legislation enacted in New Mexico and believes that all of its
generation will ultimately be deregulated.  Accordingly, SPS will apply SFAS 101
to  all  jurisdictions  of  its  generation  business.   SPS'  transmission  and
distribution  business  continues to meet the  requirements  of SFAS 71, as that
business remains regulated.  Additionally,  other regulated utilities within the
NCE system are not affected by this change.

         SPS will perform a complete analysis of the impacts of the deregulation
of its generation  business  during the remainder of the second quarter of 2000.
Based on the analysis completed to date, it is currently estimated that SPS will
be required to write-off  certain  regulatory  assets and other  deferred  costs
totaling  approximately  $22-27  million.  This  would  result  in an  after-tax
extraordinary charge of approximately $18 to $21 million against earnings of SPS
and NCE during the second  quarter.  The total  impacts of  deregulation  may be
affected by the results of future state and Federal regulatory proceedings prior
to actual  implementation of full competition,  estimated to begin on January 1,
2002.

         Additionally,  there may be other significant financial implications of
implementing electric  restructuring in Texas and New Mexico. These implications
include,  but are not limited to, the  refinancing of securities (see discussion
below),  investments  in  information  technology,  establishing  an independent
operation of the electric transmission  systems,  implementing the procedures to
govern affiliate transactions,  the pricing of unbundled energy services and the
regulatory recovery of incurred costs related to these issues. SPS is diligently
working to satisfy the legislative and regulatory requirements in developing and
implementing its transition to competition  plans.  Based on current  estimates,
these  incurred  costs could be as much as $150 million  before income taxes and
any regulatory recovery.

         SPS will likely legally separate into distinct businesses by January 1,
2001, prior to the divestiture of any generation  assets. In order to accomplish
this  business  separation,  SPS will be  required  to  address  the  provisions
limiting or otherwise affecting such activities  contained in its first mortgage
bond indenture.  Consequently,  SPS intends to continue  repurchasing  its first
mortgage bonds through open market  purchases and currently  plans to tender for
and/or defease its outstanding first mortgage bonds prior to December 31, 2000.

         The resolution of these matters may have a significant financial impact
on the financial position, results of operations and cash flows of SPS and NCE.

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                           FORWARD LOOKING INFORMATION

The above discussions include "forward looking statements" within the meaning of
Section 27A of the  Securities  Act of 1933 and  Section  21E of the  Securities
Exchange Act of 1934. Investors and prospective investors are cautioned that the
forward-looking  statements  contained  herein  with  respect  to the  revenues,
earnings,  capital  expenditures,   resolution  and  impact  of  litigation  and
regulatory matters, competitive performance, or other prospects for the business
of New Century  Energies,  Inc., and/or  Southwestern  Public Service Company or
their  affiliated  companies,  including any and all underlying  assumptions and
other  statements  that are other than  statements  of historical  fact,  may be
influenced  by factors  that  could  cause  actual  outcomes  and  results to be
materially  different than projected.  Such factors include, but are not limited
to, the effects of weather,  future  economic  conditions,  the  performance  of
generating  units, fuel prices and  availability,  regulatory  decisions and the
effects  of changes  in state and  federal  laws,  the pace of  deregulation  of
domestic  retail natural gas and electricity  markets,  the timing and extent of
change  in  commodity   prices  for  all  forms  of  energy,   capital  spending
requirements,  the  evolution of  competition,  earnings  retention and dividend
payout policies,  changes in accounting  standards,  the  implementation  of the
stipulation,  the consummation of the proposed merger with Northern States Power
Company and/or other factors. From time to time, New Century Energies,  Inc. and
Southwestern  Public  Service  Company may publish or otherwise  make  available
forward-looking  statements.  All such  subsequent  forward-looking  statements,
whether  written or oral and whether made by or on behalf of each  company,  are
also expressly qualified by these cautionary statements.


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                                   SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of 1934,  each
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.



                                                  NEW CENTURY ENERGIES, INC.


                                                       /s/Richard C. Kelly
                                                  -----------------------------
                                                        Richard C. Kelly
                                                  Executive Vice President and
                                                     Chief Financial Officer






                                             SOUTHWESTERN PUBLIC SERVICE COMPANY


                                                    /s/Richard C. Kelly
                                               -----------------------------
                                                     Richard C. Kelly
                                                Executive Vice President,
                                           Chief Financial Officer and Treasurer



Dated:        June 1, 2000



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