AMENDMENT TO AMENDED AND RESTATED
                   AGREEMENT FOR ELECTRIC SERVICE, AS AMENDED
                     BETWEEN TEXAS-NEW MEXICO POWER COMPANY
                      AND TEXAS UTILITIES ELECTRIC COMPANY


     This Amendment ("Amendment") to Amended and Restated Agreement for Electric
Service,  dated May 14, 1990, as Amended  ("Agreement") is made and entered into
on this 31st day of March,  1998,  by Texas-New  Mexico Power  Company,  a Texas
corporation ("TNMP"),  and Texas Utilities Electric Company, a Texas corporation
("TU Electric").

                                   WITNESSETH:

     WHEREAS,  TNMP and TU Electric  desire to clarify and make certain the time
period, as well as the amount of power and energy  requirements,  for the supply
of said power and energy requirements to the Lewisville point of delivery; and

     WHEREAS, TU Electric and TNMP are willing to amend the Agreement to provide
for such clarification upon the terms and conditions set forth herein.

     NOW,  THEREFORE,  for  and in  consideration  of the  promises  and  mutual
covenants and agreements contained herein, the parties hereby agree as follows:

     1.   From the date of this amendment  through  December 31, 1998,  electric
          service as presently  provided by TU Electric to TNMP will continue as
          currently in effect under the Agreement.

     2.   Paragraph  18 of the  Agreement,  entitled  "TNMP  Points of  Delivery
          Specified in Exhibit D," is hereby amended so as to read as follows:

          b.   From and after  January 1, 1999 until  June 30,  2002,  TNMP will
               purchase   from  TU   Electric   all  of  the  power  and  energy
               requirements of its customers at the Lewisville point of delivery
               and at no  other  point  of  delivery.  If  TNMP is  required  by
               applicable  law to purchase  power and energy  from a  qualifying
               facility as  described in  Paragraph  13a,  that power and energy
               shall not be utilized to offset TNMP's obligation to purchase all
               of  the  power  and  energy  requirements  of  its  customers  at
               Lewisville from TU Electric. Any capacity and energy purchased by
               TNMP from a qualifying  facility  shall be scheduled and utilized
               through the TNMP  control  area by TNMP  outside  the  Lewisville
               point of delivery.

     3.   Paragraph 5 of the Agreement is deleted and the following  language is
          inserted:  The Agreement will terminate on June 30, 2002,  without any
          further notice by either party.  Both parties  specifically  agree and
          acknowledge  that  neither  TU Electric  nor  TNMP  has  a  continuing
          obligation  or duty with regard to  providing  or  receiving  electric
          service after June 30, 2002. Both parties further agree, however, that
          the Agreement will not terminate prior to June 30, 2002, except in the
          event of a  material  breach of the terms of the  Agreement  resulting
          from the actions of one of the  parties  occurring  subsequent  to the
          date of this Amendment.

     4.   In the event of any conflict  between the provisions of this Amendment
          and the provisions of the Agreement, this Amendment shall control.

     5.   Except as otherwise expressly provided for herein, the Agreement shall
          continue in full force and effect in accordance with its terms.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Amendment to be
executed  by their  respective  authorized  officers  on the date first  written
above.

                        TEXAS UTILITIES ELECTRIC COMPANY



         By:    __________________________________________________

         Title: __________________________________________________


                         TEXAS NEW-MEXICO POWER COMPANY



         By:    __________________________________________________

         Title: __________________________________________________