SUPPLEMENTAL EMPLOYEE RETIREMENT AGREEMENT

                                       for

                                PATRICK T. ORTIZ

         THIS SUPPLEMENTAL  EMPLOYEE  RETIREMENT  AGREEMENT FOR PATRICK T. ORTIZ
(the  "Agreement")  is made and entered into this 14th day of March 14, 2000, by
and between Public Service Company of New Mexico ("PNM" or "the Company" or "the
Employer") and PATRICK T. ORTIZ ("Employee").

         WHEREAS,  PNM is the Plan Sponsor of the Public Service  Company of New
Mexico Employees' Retirement Plan (the "Retirement Plan");

         WHEREAS, Employee is a Participant in the Retirement Plan;

         WHEREAS,  eligibility for and entry into the Retirement Plan was frozen
effective January 1, 1998;

         WHEREAS,   Employee  stopped   accruing   Credited  Service  under  the
Retirement Plan as of his Credited Service Termination Date (January 1, 2000);

         WHEREAS,  PNM desires to continue to receive the benefit of  Employee's
knowledge,  experience,  reputation and services  through  Employee's  continued
employment  until at least January 1, 2010,  and is willing to offer  Employee a
retention incentive; and

         WHEREAS,  it is the intent of this Agreement to provide for the payment
of  supplemental  retirement  benefits to Employee,  such that Employee shall be
deemed to accrue the equivalent of Credited  Service  pursuant to the Retirement
Plan, to attain the  equivalent  of thirty (30) years of Credited  Service as of
January 1, 2010 under the terms and conditions set forth below.

         NOW, THEREFORE,  in consideration of the foregoing,  and other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged by the parties hereto, the parties do hereby agree as follows:

         1.  Additional   Retirement  Benefits.   PNM  agrees  to  pay  Employee
supplemental  retirement  benefits equal to the  difference  between the monthly
benefits deemed payable to Employee under the Retirement Plan in accordance with
Section 3 of the  Agreement,  and the  benefit  that would have been  payable to
Employee under the Retirement Plan, calculated as though Employee:

                  (a) Is granted sufficient  Credited Service on January 1, 2000
so as to accrue the  equivalent of ten (10) years of Credited  Service as of the
Employee's Credited Service Termination Date; and



                  (b)  Continued  earning  Credited  Service  beyond  Employee's
Credited  Service  Termination  Date at the rate of two (2)  years  of  Credited
Service for each year of continuous  employment for the years 2000 through 2009;
and

         For purposes of this Section 1,  additional  years of Credited  Service
shall be determined in the same manner as if they were being  credited under the
Retirement  Plan including,  but not limited to, the rules  regarding  crediting
partial years of service and leaves of absence.

         Notwithstanding  anything to the contrary  contained in this Section 1,
in the event that the Employee is  terminated  by the Company for Cause,  all of
the Credited  Service  awarded to Employee  under this Agreement  shall,  unless
otherwise determined by the Board, be forfeited. For purposes of this Agreement,
Cause shall be defined as:

                  (1) The  willful  and  continued  failure of the  Employee  to
         substantially  perform his duties with the Company,  or willful failure
         to report to work for more than thirty (30) consecutive days; or

                  (2) The willful  engaging by the Employee in conduct  which is
         demonstrably  and  materially  injurious to the Company,  monetarily or
         otherwise,  including acts of fraud,  misappropriation  or embezzlement
         for  personal  gain at the  expense  of the  Company,  conviction  of a
         felony, or conviction of a misdemeanor involving immoral acts.

         2. Calculation of Additional Retirement Benefits.  The benefit provided
for in Section 1 of this Agreement shall be calculated based upon the Retirement
Plan in effect on January 1, 2000,  as modified by Section 1 above.  The monthly
benefit  that would be payable to Employee  under the  Retirement  Plan shall be
calculated disregarding limitations imposed by the Internal Revenue Code of 1986
(the  "Code"),  Sections  401(a)(17)  and 415 and  similar  Code and  regulatory
limitations.

         3. Calculation of Retirement Plan Benefits, No Duplication of Benefits.
The benefits deemed payable under the Retirement Plan shall be calculated:

            (a)  Assuming  a deemed  commencement  date for the  payment of such
benefits  being the later of: (i) the earliest  date  Employee  could have begun
receiving  benefits  under  the  Retirement  Plan or (ii) the date the  Employee
commences receiving benefits under this Agreement;

            (b) Assuming a single life annuity form of payment;

            (c)  Based  upon the  Retirement  Plan in  effect  on the date  such
benefits are deemed to have  commenced and based on Employee's  actual  Credited
Service and Average  Earnings as provided for in the Retirement  Plan, using the
highest  salary for three  consecutive  years  prior to  January  1,  1998,  the
effective date that the Retirement Plan was frozen; and

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            (d) For purposes of Section 1,  Employee  shall not accrue more than
thirty (30) years of Credited  Service  pursuant to the terms and  conditions of
this Agreement.

         4.  Supplemental  Retention  Provision.  In the event the  Employee  is
terminated  by the Company for any reason  other than Cause,  is  Constructively
Terminated,  or the Employee's  termination is a result of a "Change in Control"
as that term is  defined  in the Public  Service  Company  of New  Mexico  First
Restated and Amended  Executive  Retention  Plan  ("Executive  Retention  Plan")
effective December 7, 1998, and as may be subsequently amended from time to time
at the  discretion of PNM, as of the  "Termination  Date"  applicable  under the
Executive  Retention  Plan,  Employee  shall receive the following  supplemental
retirement benefits in lieu of the Supplemental  Retirement Benefits outlined in
Section 5.5.1 of the Executive Retention Plan:

             The cash  equivalent of the present  value of the  incremental
             benefit the Employee  would  receive  under this  Supplemental
             Employee  Retirement  Agreement as if his service and age were
             increased by the number of years equal to the multiplier  (2.5
             years)  used  to  determine  Severance  Pay in  the  Executive
             Retention Plan.

For purposes of this Section 4, and this Agreement, Constructively Terminated or
Constructive  Termination  shall be defined as a termination of employment  with
the Company as a consequence of any of the following events:

                  (1) A reduction in base salary;

                  (2) A reduction in title or a reassignment of duties which are
         inconsistent  with  the  status  or  responsibilities  of the  Employee
         immediately prior to such reassignment;

                  (3) A  relocation  of  Employee's  principal  office more than
         seventy (70) miles from Santa Fe, New Mexico; or

                  (4) A requirement  that Employee move his residence from Santa
         Fe, New Mexico.

         5.  Severance  Benefits.  In the event the  Employee is  terminated  or
Constructively Terminated by the Company for any reason other than Cause or as a
result of a Change in Control (as defined in paragraph 4, above), Employee shall
receive the following severance benefits in lieu of the Severance Pay provisions
contained in Section 5.4.1.  of the Public Service  Company of New Mexico Second
Restated and Amended Non-Union  Severance Pay Plan effective August 1, 1999, and
as may be subsequently amended from time to time at the discretion of PNM:

             One cash lump sum  payment  equal to twelve (12) months of the
             Participant's Base Salary,  with no additional cost of living,
             promotion,  merit or other  increases;  plus severance pay the
             equivalent  of Regular  Severance Pay in the amount of two (2)
             months of  Participant's  Base Salary,  and one (1) additional
             week of Base Salary for each Year of Service.  For purposes of
             this  Section  5, the Years of Service  taken into  account in
             calculating  the  Employee's  severance pay shall be deemed to
             include the years of Credited  Service awarded to the Employee
             pursuant to the terms of this  Agreement,  but  excluding  any
             supplemental  benefits granted to Employee pursuant to Section
             4, above.

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         6.  Retiree Medical Benefits.

            (a) Eligibility  for Retiree  Medical  Benefits Prior to Age 55. For
the period  commencing  January 1, 2000,  and ending upon the date the  Employee
attains age 55, the Employee's  eligibility for retiree  medical  benefits under
the terms of the Retirement Plan and its Retiree Medical  Benefits Funding Plan,
shall be  determined  as though  Employee is age 45 and has 20 years of Credited
Service.

         Notwithstanding  anything to the contrary contained above, in the event
the  Employee  voluntarily  terminates,  or his  employment  with the Company is
terminated by the Company for Cause before  attaining age 55, the Employee shall
be ineligible to receive any retiree medical  benefits under either Section 6(a)
or 6(b),  except as  otherwise  may be  provided  by the  Retirement  Plan.  For
purposes of this  paragraph,  the Employee will not be considered as voluntarily
terminating employment in the event of a Constructive Termination.

            (b) Eligibility  for Retiree Medical  Benefits on or After Attaining
Age  55.  Upon  attaining  age  55,  the  retiree  medical  benefit  eligibility
provisions  outlined  in  Section  5(a) above are no longer  applicable.  If the
employee  terminates  employment after attaining age 55, the applicable  premium
amount will be determined by including the Credited  Service  granted under this
Agreement.  Notwithstanding the preceding sentence, in the event the Employee is
terminated by the Company for Cause after  attaining  age 55,  unless  otherwise
determined by the Board, all Credited Service granted under this Agreement shall
be disregarded for purposes of calculating the applicable premium amount.

         7. Form,  Timing and Amount of  Benefit.  Benefits  shall be payable to
Employee upon his retirement eligibility and election, following his termination
of  employment  with PNM,  pursuant  to any  annuity  form  available  under the
Retirement Plan with appropriate actuarial equivalence adjustments as defined in
the  Retirement  Plan,  for forms other than a single life annuity on Employee's
life.

         8.  Designation of Beneficiary.  The latest  designation of beneficiary
form  filed by  Employee  under  the  Retirement  Plan  shall be  deemed to be a
designation  of the person or fiduciary to receive any amount payable under this
Agreement upon Employee's  death. If no beneficiary  designation has been filed,
the  Employee's  spouse  shall be the  designated  beneficiary  or in the  event
Employee has no spouse,  the  Employee  shall be deemed to have  designated  his
estate as beneficiary.

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         9. No  Assignment.  This  Agreement  shall inure only to the benefit of
Employee,  Employee's designated beneficiary, and Employee's estate or heirs and
may not be assigned, transferred, pledged or hypothecated in any way by Employee
or  Employee's  personal  representative,  heir,  distributee,  or other  person
claiming  under  Employee and shall not be subject to  execution,  attachment or
similar process.

         10. Source of Payments of Benefits.

            (a)  This  Agreement  is a  non-qualified,  unfunded  and  unsecured
deferred compensation arrangement. All benefits owing under this Agreement shall
be paid out of the general  corporate funds of the Employer which are subject to
the  claims  of  creditors,  or out of any trust  Employer  shall  establish  or
authorize;  provided that all assets paid into any such trust shall at all times
prior to actual payment to Employee or his  beneficiaries  remain subject to the
claims of the general creditors of Employer.  Neither  Employee,  his designated
beneficiaries,  his  estate  nor his heirs  shall (i) have any  right,  title or
interest  whatsoever  in, or claim to,  preferred or otherwise,  any  particular
assets of Employer or any trust that  Employer may establish or designate to aid
in  providing  the payment  described  in this  Agreement;  or (ii)  acquire any
interest greater than that of an unsecured creditor in any assets of Employer.

            (b)  Notwithstanding  the above, upon a Change in Control as defined
in the First Restated and Amended Executive Retention Plan effective December 7,
1998, incorporated herein by reference, and subject to any subsequent amendments
thereto,  the Company shall  sufficiently fund the Public Service Company of New
Mexico and Paragon  Resources,  Inc. Deferred  Compensation Trust Agreement (the
"Rabbi Trust") to provide in full for any benefits  accrued under this Agreement
as of the date of the occurrence of the Change in Control.

         11. Administrator. This Agreement shall be administered by the Board of
Directors  of PNM or any  individual  or  committee  appointed  by it,  or their
successors, with written notice to Employee.

         12. Amendment. This Agreement may be amended only by written consent of
both parties.

         13. Controlling Law. This Agreement shall be interpreted under the laws
of the State of New Mexico.

         14. Binding  Effect.  This Agreement shall be binding upon and inure to
the  benefit  of any  successor  of PNM and any such  successor  shall be deemed
substituted  for  PNM  under  the  terms  of  this  Agreement.  As  used in this
Agreement,  the term "successor" shall include any person, firm,  corporation or
other  business  entity  which,  at any time,  whether  by merger,  purchase  or
otherwise, acquires all or substantially all of the assets or business of PNM.

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         15.  Reorganization.  Upon reorganization of the Company into a holding
company  structure   pursuant  to  the  New  Mexico  Electric  Utility  Industry
Restructuring  Act of 1999,  the holding  company shall succeed to the Company's
obligations under this Agreement.  Employee's  employment by the holding company
shall be considered as continuous employment for purposes of this Agreement.

         IN  WITNESS  WHEREOF,  the  parties  hereto,  personally  or  by  their
authorized representatives,  have executed this Supplemental Employee Retirement
Agreement as of the date first above written.

                                    PUBLIC SERVICE COMPANY OF NEW MEXICO



                                    By:        /s/ Benjamin F. Montoya
                                    ------------------------------------------
                                                BENJAMIN F. MONTOYA,
                                       Chairman and Chief Executive Officer


                                    By:        /s/ Patrick T. Ortiz
                                    ------------------------------------------
                                               PATRICK T. ORTIZ




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