PUBLIC SERVICE CO OF NEW MEXICO
10-Q, 1998-05-08
ELECTRIC & OTHER SERVICES COMBINED
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

(Mark One)  [X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                       For the period ended March 31, 1998
                                            --------------
                                       OR

            [ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

  For the transition period from                         to
                                  --------------------        ------------

                       Commission file number   1-6986
                                              -----------

                      PUBLIC SERVICE COMPANY OF NEW MEXICO
           ----------------------------------------------------------- 
             (Exact name of registrant as specified in its charter)

                 New Mexico                                 85-0019030
      -------------------------------                  -------------------
      (State or other jurisdiction of                    (I.R.S. Employer
      incorporation or organization)                   Identification No.)

                 Alvarado Square, Albuquerque, New Mexico 87158
                 ----------------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (505) 241-2700
                 ---------------------------------------------
              (Registrant's telephone number, including area code)


                 ---------------------------------------------
              (Former name, former address and former fiscal year,
                         if changed since last report)

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X   No
                                             ---    ---
                      APPLICABLE ONLY TO CORPORATE ISSUERS:
     Indicate the number of shares  outstanding of each of the issuer's  classes
of common stock, as of the latest practicable date.

   Common Stock--$5.00 par value                  41,774,083 shares
   -----------------------------             ---------------------------
                 Class                        Outstanding at May 1, 1998


<PAGE>


              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES

                                      INDEX
                                                                      Page No.
PART I.  FINANCIAL INFORMATION:

        Report of Independent Public Accountants........................   3

   ITEM 1.  FINANCIAL STATEMENTS

        Consolidated Statements of Earnings-
        Three Months Ended March 31, 1998 and 1997......................   4

        Consolidated Statements of Comprehensive Income-
        Three Months Ended March 31, 1998 and 1997......................   5

        Consolidated Balance Sheets-
        March 31, 1998 and December 31, 1997............................   6

        Consolidated Statements of Cash Flows-
        Three Months Ended March 31, 1998 and 1997......................   7

        Notes to Consolidated Financial Statements......................   8

   ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
        FINANCIAL CONDITION AND RESULTS OF OPERATIONS...................  10

PART II.  OTHER INFORMATION:

   ITEM 1.  LEGAL PROCEEDINGS...........................................  15

   ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS ........  16

   ITEM 5.  OTHER INFORMATION...........................................  17

   ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K............................  20

Signature   ............................................................  21


                                       2
<PAGE>



                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Board of Directors and Stockholders
of Public Service Company of New Mexico:


We have reviewed the accompanying  consolidated  balance sheet of Public Service
Company of New Mexico (a New Mexico  corporation)  and  subsidiaries as of March
31, 1998,  and the related  consolidated  statements  of earnings,  consolidated
statements of comprehensive income and consolidated statements of cash flows for
the  three-month  periods  ended  March  31,  1998  and  1997.  These  financial
statements are the responsibility of the company's management.

We conducted our review in accordance with standards established by the American
Institute  of  Certified  Public  Accountants.  A review  of  interim  financial
information consists principally of applying analytical  procedures to financial
data and making  inquiries of persons  responsible  for financial and accounting
matters. It is substantially less in scope than an audit conducted in accordance
with  generally  accepted  auditing  standards,  the  objective  of which is the
expression of an opinion  regarding the financial  statements  taken as a whole.
Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material  modifications that should
be  made  to the  financial  statements  referred  to  above  for  them to be in
conformity with generally accepted accounting principles.

We have  previously  audited,  in accordance  with generally  accepted  auditing
standards,  the  consolidated  balance  sheet of Public  Service  Company of New
Mexico and subsidiaries as of December 31, 1997 (not presented herein),  and, in
our report dated February 10, 1998, we expressed an unqualified  opinion on that
statement.  In our  opinion,  the  information  set  forth  in the  accompanying
consolidated  balance  sheet as of December 31, 1997, is fairly  stated,  in all
material respects,  in relation to the consolidated  balance sheet from which it
has been derived.



                                           ARTHUR ANDERSEN LLP



Albuquerque, New Mexico
April 28, 1998


                                       3
<PAGE>


ITEM 1.  FINANCIAL STATEMENTS

              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES
                       CONSOLIDATED STATEMENTS OF EARNINGS
                                   (Unaudited)

                                                       Three Months Ended
                                                            March 31
                                                    -------------------------
                                                       1998            1997
                                                    --------        ---------
                                                       (In thousands except
                                                        per share amounts)
Operating revenues:
  Electric                                          $ 179,652       $ 161,261
  Gas                                                 102,712         123,936
  Energy Services                                      47,400          13,625
                                                    ---------       ---------
    Total operating revenues                          329,764         298,822
                                                    ---------       ---------

Operating expenses:
  Fuel and purchased power                             55,032          47,118
  Gas purchased for resale                             64,711          81,660
  Gas purchased for resale and 
    other - Energy Services                            52,330          13,402
  Other operation and maintenance                      84,002          76,546
  Depreciation and amortization                        21,074          20,453
  Taxes, other than income taxes                        9,440           9,753
  Income taxes                                         10,896          13,197
                                                    ---------       ---------
    Total operating expenses                          297,485         262,129
                                                    ---------       ---------
    Operating income                                   32,279          36,693
                                                    ---------       ---------

Other income and deductions, net of taxes               2,722           2,437
                                                    ---------       ---------
    Income before interest charges                     35,001          39,130
                                                    ---------       ---------

Interest charges:
  Interest on long-term debt                           11,386          12,123
  Other interest charges                                2,401           2,111
                                                    ---------       ---------
    Net interest charges                               13,787          14,234
                                                    ---------       ---------

Net earnings                                           21,214          24,896
Preferred stock dividend requirements                     147             147
                                                    ---------       ---------
Net earnings applicable to common stock              $ 21,067        $ 24,749
                                                    =========       =========
Average shares of common stock outstanding             41,774          41,774
                                                    =========       =========
Net earnings per common share (Basic)                  $ 0.50          $ 0.59
                                                    =========       =========
Net earnings per common share (Diluted)                $ 0.50          $ 0.59
                                                    =========       =========
Dividends paid per share of common stock               $ 0.17          $ 0.12
                                                    =========       =========


   The accompanying notes are an integral part of these financial statements.


                                       4
<PAGE>

              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES
                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
                                   (Unaudited)

                                                         For the Quarter Ended
                                                                March 31
                                                         ----------------------
                                                           1998           1997
                                                         --------      --------
                                                             (In thousands)

Net Earnings                                             $ 21,214      $ 24,896
                                                         --------      --------
Other Comprehensive Income, net of tax (note 3):
  Unrealized gain on securities:
    Unrealized holding gains arising during the period      3,875         2,065
    Reclassification adjustment for gains included
       in net earnings                                        (87)          (77)
  Minimum pension liability adjustment                      -               262
                                                         --------      --------
  Total other comprehensive income                          3,788         2,250
                                                         --------      --------
Total Comprehensive Income                               $ 25,002      $ 27,146
                                                         ========      ========
























   The accompanying notes are an integral part of these financial statements.

                                       5
<PAGE>

              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS

                                                      March 31,     December 31,
                                                        1998           1997
                                                    ------------    ------------
                                                     (Unaudited)
                                                           (In thousands)
ASSETS                                                                        
Utility plant                                       $ 2,597,836     $ 2,576,236
Accumulated provision for depreciation 
  and amortization                                   (1,024,596)     (1,003,086)
                                                    ------------    ------------
    Net utility plant                                 1,573,240       1,573,150
                                                    ------------    ------------
Other property and investments                          309,250         310,775
                                                    ------------    ------------

Current assets:
  Cash                                                    8,186           8,705
  Temporary investments, at cost                         14,157           9,490
  Receivables                                           174,505         216,305
  Fuel, materials and supplies                           34,032          33,664
  Gas in underground storage                              8,463          13,158
  Other current assets                                    7,034           4,509
                                                    ------------    ------------
    Total current assets                                246,377         285,831
                                                    ------------    ------------
Deferred charges                                        152,963         149,811
                                                    ------------    ------------
                                                    $ 2,281,830     $ 2,319,567
                                                    ============    ============

CAPITALIZATION AND LIABILITIES
Capitalization:
  Common stock equity:
     Common stock                                     $ 208,870       $ 208,870
     Additional paid-in capital                         467,530         469,073
     Accumulated other comprehensive income,
       net of tax                                         3,811              23
     Retained earnings since January 1, 1989            141,901         129,188
                                                    ------------    ------------
        Total common stock equity                       822,112         807,154
  Cumulative preferred stock without mandatory
    redemption requirements                              12,800          12,800
  Long-term debt, less current maturities               574,344         713,995
                                                    ------------    ------------
        Total capitalization                          1,409,256       1,533,949
                                                    ------------    ------------

Current liabilities:
  Short-term debt                                       243,860         114,100
  Accounts payable                                       94,600         154,501
  Dividends payable                                       8,501           7,248
  Current maturities of long-term debt                       -              350
  Accrued interest and taxes                             42,561          24,161
  Other current liabilities                              31,620          26,102
                                                    ------------    ------------
        Total current liabilities                       421,142         326,462
                                                    ------------    ------------
Deferred credits                                        451,432         459,156
                                                    ------------    ------------
                                                    $ 2,281,830     $ 2,319,567
                                                    ============    ============

   The accompanying notes are an integral part of these financial statements.

                                       6
<PAGE>

              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (Unaudited)
                                                            Three Months Ended
                                                                 March 31
                                                          ----------------------
                                                            1998          1997
                                                          ---------    ---------
                                                              (In thousands)
Cash Flows From Operating Activities:
  Net earnings                                            $ 21,214     $ 24,896
  Adjustments to reconcile net earnings to net 
    cash flows from operating activities:
      Depreciation and amortization                         24,156       23,275
      Accumulated deferred investment tax credit            (1,109)      (1,119)
      Accumulated deferred income tax                       (1,323)       1,662
      Net loss on market sensitive portfolio                 2,698        -
      Changes in certain assets and liabilities:
        Receivables                                         41,347       30,872
        Fuel, materials and supplies                         4,326         (430)
        Deferred charges                                      (245)       5,116
        Accounts payable                                   (59,907)     (49,171)
        Accrued interest and taxes                          18,400        4,741
        Deferred credits                                    (3,205)       2,320
        Other                                                  378       (4,650)
      Other, net                                             1,618        5,203
                                                          ---------    ---------
        Net cash flows from operating activities            48,348       42,715
                                                          ---------    ---------

Cash Flows From Investing Activities:
  Utility plant additions                                  (25,624)     (27,856)
  Increase in nuclear decommissioning trust                   (860)     (23,000)
  Return of principal PVNGS LOBs                             4,994          820
  Increase in other property and investments                    (3)        (373)
  Increase in temporary investments, net                    (4,667)     (11,326)
                                                          ---------    ---------
        Net cash flows from investing activities           (26,160)     (61,735)
                                                          ---------    ---------

Cash Flows From Financing Activities:
  Bond redemption premium and costs                         (3,479)      (1,474)
  Redemption of first mortgage bonds                      (140,206)         -
  Short-term borrowings for first mortgage 
    bonds redemption                                       140,206          -
  Trust borrowing for nuclear decommissioning                  860       23,000
  Repayments of short-term borrowings                      (11,306)        (400)
  Exercise of employee stock options                        (1,540)         -
  Dividends paid                                            (7,242)      (5,149)
                                                          ---------    ---------
        Net cash flows from financing activities           (22,707)      15,977
                                                          ---------    ---------

Decrease in cash                                              (519)      (3,043)
Cash at beginning of period                                  8,705       11,125
                                                          ---------    ---------
Cash at end of period                                      $ 8,186     $  8,082
                                                          =========    =========

Supplemental Cash Flow Disclosures:
  Interest paid                                           $ 10,936     $ 13,971
                                                          =========    =========
  Income taxes paid, net                                  $  6,121     $   -
                                                          =========    =========


   The accompanying notes are an integral part of these financial statements.


                                       7
<PAGE>
              PUBLIC SERVICE COMPANY OF NEW MEXICO AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)

(1)    General Accounting Policy

In the opinion of management,  the accompanying unaudited consolidated financial
statements  contain all  adjustments  necessary for a fair  presentation  of the
consolidated financial statements.  The significant accounting policies followed
by Public  Service  Company of New Mexico (the  "Company") are set forth in note
(1) of notes to the Company's consolidated financial statements in the Company's
Annual Report on Form 10-K for the year ended  December 31, 1997 (the "1997 Form
10-K") filed with the Securities and Exchange Commission ("SEC").

(2)     New Senior Unsecured Notes and Indenture

On March 11, 1998, the Company  retired $140 million  principal  amount of first
mortgage bonds and replaced first mortgage bonds in the principal amount of $463
million  collateralizing  pollution  control  revenue bonds ("PCBs") with senior
unsecured  notes which were issued under a new  indenture.  While first mortgage
bonds  continue to serve as collateral for $111 million of PCBs, the lien on the
mortgage has been  substantially  reduced to cover only the Company's  ownership
interest in the Palo Verde  Nuclear  Generating  Station  ("PVNGS").  All future
long-term debt  financings are expected to be issued under an indenture  similar
to the new indenture.

Coincident  with the above  transactions,  the Company  established a five-year,
$300 million  unsecured  revolving credit facility to replace the Company's $100
million  secured  revolving  credit  facility.  Funds borrowed  through this new
facility were used to retire the $140 million principal amount of first mortgage
bonds.

(3)    Other Comprehensive Income

The Company  adopted as of January 1, 1998,  Statement of  Financial  Accounting
Standards  Board  ("SFAS")  No.  130,  "Reporting  Comprehensive  Income".  This
statement  requires the reporting of certain  changes in the common stock equity
section of the balance sheet as other comprehensive income.

                                                      Minimum     Accumulated
                                      Unrealized      Pension        Other
                                       Gains on      Liability   Comprehensive
                                      Securities    Adjustment       Income
                                      ----------    ----------   -------------

Beginning Balance at January 1, 1998    $2,750       $(2,727)         $ 23
  Current Period Changes                 3,788          -            3,788
                                        ------       -------        ------
Ending Balance at March 31, 1998        $6,538       $(2,727)       $3,811
                                        ======       =======        ======


                                       8
<PAGE>

The Company has two external trusts for funding its executive retirement program
and its share of decommissioning obligations for PVNGS, respectively.  The trust
funds are  invested  partially in fixed income  securities  and domestic  stock,
which are classified as available-for-sale.  The Company reflects the unrealized
gains or losses on the investments for the executive  retirement program and the
decommissioning trust for PVNGS Unit 3 in other comprehensive income. Such gains
or losses related to the PVNGS Units 1 and 2 trust  investments are reflected in
the  decommissioning  reserve account.  All prior periods have been restated for
comparability purposes.



                                       9
<PAGE>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
   CONDITION AND RESULTS OF OPERATIONS

The  Company's  1997 Form 10-K PART II,  ITEM  7.-"MANAGEMENT'S  DISCUSSION  AND
ANALYSIS  OF  FINANCIAL   CONDITION   AND  RESULTS  OF   OPERATIONS"   discussed
management's  assessment  of  the  Company's  financial  condition,  results  of
operations  and other issues facing the Company.  The following  discussion  and
analysis by management  focuses on those  factors that had a material  effect on
the Company's  financial  condition  and results of operations  during the first
quarter of 1998 and 1997.  It should be read in  conjunction  with the Company's
consolidated financial statements. Trends and contingencies of a material nature
are discussed to the extent known and considered relevant.

                         LIQUIDITY AND CAPITAL RESOURCES

The  previously  estimated  capital  requirements  for  1998 of  $218.9  million
included  utility  construction  expenditures  of $141.3  million and other cash
requirements  for  long-term  debt  sinking  funds,   purchase  of  PVNGS  Lease
Obligation  Bonds  ("LOBs") and dividend  payments for both common and preferred
stock.  These  projected  capital  requirements  did not  include  funds for the
retirement of $140 million of taxable first  mortgage  bonds  completed on March
11, 1998, or the planned refinancing of PVNGS lease debt through the issuance of
up to $435 million of senior unsecured notes ("SUNS")  discussed  below.  During
the first  quarter,  the Company spent  approximately  $36.3 million for capital
requirements  and  anticipates  spending  approximately  $182.6 million over the
remainder  of 1998,  including  the $58  million  spent on May 1, 1998,  for the
purchase of PVNGS LOBs  discussed  below.  The Company  expects  that these cash
requirements will be met primarily through internally  generated cash.  However,
to cover the  difference in the amounts and timing of cash  generation  and cash
requirements,  the Company intends to utilize  short-term  borrowings  under its
liquidity arrangements.  These estimates are under continuing review and subject
to on-going adjustment.

On March 11, 1998,  the Company  entered into a five-year,  $300 million  senior
unsecured revolving credit facility  ("Revolver").  Also, on March 11, 1998, the
Company borrowed $148 million under the Revolver for the purpose of retiring its
outstanding  taxable first mortgage bonds, which were defeased on March 11, 1998
and subsequently redeemed on April 10, 1998.

Also,  on March  11,  1998,  the  Company  replaced  the  first  mortgage  bonds
collateralizing  $463 million of  tax-exempt  pollution  control  revenue  bonds
("PCBs") with SUNs issued under a new senior  unsecured  note  indenture.  As of
March 31,  1998,  there  remains  outstanding  $111 million of  tax-exempt  PCBs
secured by first  mortgage  bonds.  The 1947  Indenture  of Mortgage and Deed of
Trust (the "Mortgage") was amended by vote of the bondholders on March 11, 1998.
A substantial  amount of the Company's  assets was released from the lien of the
Mortgage,  leaving only the Company's  owned interest in PVNGS under the lien of
the  Mortgage.  No  future  bonds can be issued  under  the  Mortgage.  With the
exception of the $111 million of first mortgage bonds securing  tax-exempt PCBs,
the SUNs will be the senior debt of the Company.  The SUNs indenture  contains a
restriction on liens (except in certain limited circumstances) and certain other
covenants and restrictions.


                                       10
<PAGE>

The  above  mentioned  transactions  will  result in  increased  administrative,
financial and strategic flexibility for the Company.

On May 1, 1998, the Company  purchased $58 million of PVNGS LOBs, 10.15% Series.
The purchase of the LOBs was financed with the Company's liquidity facilities.

On April 27, 1998, the Company  requested New Mexico Public  Utility  Commission
("NMPUC")  approval  to issue up to $435  million  in SUNs to  provide  funds to
refinance the lease debt associated with the sale and leaseback  portions of the
Company's  interests in PVNGS  ("Lease  Debt").  As of May 1, 1998,  the Company
holds $277 million in Lease Debt (including the $58 million  mentioned above) as
an investment  with the remaining  $151 million in Lease Debt held in the public
market in the form of LOBs. The Company  estimates  that the  replacement of the
Lease Debt with the  issuance of the SUNs will save the Company an average of $3
million a year  over the next 18 years.  However,  due to the  recording  of the
transaction costs in 1998, the replacement of the Lease Debt will have no impact
on 1998  earnings.  Under  an  NMPUC  order,  any  savings  generated  from  the
refinancing will be split between the Company's customers (40%) and shareholders
(60%).  The Company  requested  NMPUC  approval on a schedule  that would enable
completion of this transaction in the third quarter of 1998.

                              RESULTS OF OPERATIONS

Net earnings for the quarter  decreased  $3.7 million  ($.09 per share) from the
corresponding period last year.

Electric gross margin (electric operating revenues less fuel and purchased power
expense) for the current quarter  increased $10.5 million from a year ago due to
increased  wholesale energy sales of 34.7% as a result of continued  improvement
in the Company's  wholesale power marketing efforts.  However,  gas gross margin
(gas  operating  revenues less gas purchased for resale)  decreased $4.3 million
from the  corresponding  period a year ago as a result  of  changes  in the rate
structure resulting from a 1997 gas rate order.

Energy  Services  Business  Unit gross margin was negative  and  decreased  $5.2
million  from a year  ago due to the  recording  of  losses  related  to the gas
marketing  portfolio.  The Company does not anticipate an earnings  contribution
from the Energy Services Business Unit over the next few years.

Other  operation  and  maintenance  expenses  increased  $7.5  million  over the
corresponding quarter a year ago due to higher maintenance costs associated with
scheduled outages at the San Juan Generating Station ("SJGS"), increased pension
and benefit  expense  resulting  from changes to the Company's  pension plan and
higher costs related to gas marketing activities.  Such increases were offset by
lower  salary   expense  of  $3.5  million   resulting  from  the  recording  of
compensation expense in 1997 relating to the exercise of employee stock options.


                                       11
<PAGE>


                         OTHER ISSUES FACING THE COMPANY

Electric Rate Case

As previously  reported,  in November  1997, the Company filed its electric rate
case  pursuant to an NMPUC  order.  In the  filing,  the  Company  stated  that,
although the Company could justify a $5 million rate increase, it would not seek
to increase  rates,  stating that rate  stability is important in preparing  for
industry  restructuring.  In conjunction with the rate case filing,  the Company
had requested the New Mexico Supreme Court  ("Supreme  Court") to issue an order
disqualifying and removing the chairman of the NMPUC from  participating in this
rate case.  Pending a decision,  the Supreme Court issued a stay prohibiting the
chairman of the NMPUC from  participating  in the rate case.  (See PART II, ITEM
7.-"MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL  CONDITION AND RESULTS OF
OPERATIONS - OTHER ISSUES FACING THE COMPANY - REGULATORY ISSUES - Electric Rate
Case" in the 1997 Form 10-K.) On April 17,  1998,  the Supreme  Court lifted the
stay,  allowing  the  chairman  of the  NMPUC to  participate  in the  Company's
electric rate case.

On April 6, 1998,  the NMPUC staff and  intervenors in the rate case filed their
testimony.  The NMPUC staff  recommended  a decrease of $33.2 million in current
rates while the New Mexico  Attorney  General ("AG") and the City of Albuquerque
("COA") recommended decreases of $31.2 million and $45.4 million,  respectively,
based on traditional cost of service ratemaking. In addition, the AG recommended
that  market  pricing  should be used to price  the  generation  portion  of the
Company's  rates and, if stranded  costs exist as a result of this pricing,  the
Company  should only be allowed to recover 50% of such  amounts.  The  Company's
review indicates that if the AG's revaluation  proposal is adopted,  there could
be an  additional  $105 million  reduction in rates and more than a $960 million
write-down of the Company's  generation assets. The New Mexico Industrial Energy
Consumers ("NMIEC") also recommended that the Company's generation assets should
be  revalued  for  ratemaking  purposes  to  reflect  the  market  value  of the
facilities.  The Company's review indicates that if NMIEC's revaluation proposal
is adopted, there could be an additional $60 million reduction in rates and more
than a $550 million  write-down of the Company's  generation assets. The Company
has reviewed the  testimony of the NMPUC Staff and other  intervenors  and filed
its rebuttal testimony on May 6, 1998.

In  rebuttal  testimony,  the Company  stated that (1) the cost of service  rate
reductions  proposed by the NMPUC staff,  AG and COA were not  justified and (2)
the  recommendations  made by the AG and NMIEC  regarding the revaluation of the
Company's generation assets were highly speculative,  subject to numerous highly
subjective assumptions, overly complex and inappropriate. The Company's rebuttal
demonstrates that the plant revaluation  proposals submitted by the AG and NMIEC
are,  in  reality,  an  unjustified  attempt  to  partially  rely  on  the  long
discredited  reproduction cost method of rate base valuation associated with the
fair value concept of ratemaking  found to be inferior to the original cost less
depreciation  method  of rate  base  valuation  long  preferred  by  courts  and
regulators.  Hearings  in the case are  scheduled  to begin May 18,  1998 with a
final  order  from the NMPUC  sometime  toward the end of 1998.  The  Company is
unable to predict the ultimate  outcome of this case but will vigorously  defend
its position and avail itself of any and all judicial remedies to do so.


                                       12
<PAGE>

The City of Albuquerque Retail Pilot Load Aggregation Program

As previously  reported,  in September  1997,  the COA filed a petition with the
NMPUC to institute a retail pilot load aggregation program. In the petition, the
COA stated that it would serve as the  aggregator  and  proposed to solicit bids
for an energy  supplier.  The plan would  apply to certain  selected  customers,
ranging from residential to industrial  classes,  and would comprise 10-12 MW of
the Company's  peak load. The NMPUC staff  presented an alternative  proposal to
the COA  pilot  proposal,  which was for a larger  pilot  that  would  include a
broader mix of customer  classes.  The NMPUC staff also  proposed that the NMPUC
order a separate  proceeding to identify what stranded costs,  transition  costs
and  administrative  costs would be incurred by the Company in connection with a
pilot and the proper methodology for quantifying any appropriate recovery.  (See
PART II, ITEM  7.-"MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL  CONDITION
AND  RESULTS  OF  OPERATIONS  -  OTHER  ISSUES  FACING  THE  COMPANY  - City  of
Albuquerque Retail Pilot Load Aggregation Program" in the 1997 Form 10-K.)

On March 30, 1998,  the NMPUC issued an order  scheduling  hearings for stranded
cost issues related to the implementation of the pilot program.  The Company and
other parties filed testimony on April 16, 1998, addressing:  (i) the definition
of stranded  costs;  (ii) the legal basis of stranded cost  recovery;  (iii) the
factual basis for stranded cost  recovery;  (iv) the  Company's  total  stranded
cost; (v) the share, if any, of the Company's  stranded costs to be allocated to
the COA's pilot program and the NMPUC staff's  proposed pilot program;  and (vi)
assuming entitlement to recovery, the methodology for recovery and collection of
the Company's allowable stranded costs.

In its filing,  the Company stated that it is impossible to accurately  quantify
the  stranded  generation  costs due to the  existence  of a number of different
variables  affecting  the market  clearing  price for  generation in New Mexico.
These include the following:  (i) the timing of restructuring;  (ii) the form of
the restructured  industry;  (iii) the nature and efficiency of the market;  and
(iv) how choice will be made available to customers.  Using certain assumptions,
the Company updated the estimate of its stranded  costs,  using the Texas Public
Utility Commission Economic Cost Over Market Model ("ECOM"),  to be between $290
million and $1.2 billion (in year 2001  dollars),  depending on the market price
of electricity.  Such assumptions included,  but were not limited to: (i) a full
access date of 2001, (ii) market price scenarios of 2.5 cents/kWh, 3.0 cents/kWh
and 3.5 cents/kWh; and (iii) price escalation of two percent per year. (See PART
II, ITEM 7.-  "MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL  CONDITION AND
RESULTS OF OPERATIONS - OVERVIEW - Restructuring  the Electric Utility Industry"
in the 1997 Form  10-K.) The  Company  advised the NMPUC that the results of the
ECOM model  estimates  for  stranded  generation  costs are highly  sensitive to
various assumptions,  requiring a true-up mechanism to adjust any estimate after
the fact.

Hearings  were held  before the NMPUC on April 20 and 21,  1998.  The Company is
unable to predict the ultimate  outcome of this  proceeding  but still  believes
that a pilot  program  designed as part of the  framework  for overall  industry
restructuring  under  legislative  direction  will  have the most  value  for an
effective transition to full retail access.



                                       13
<PAGE>

Supreme Court Decision on Optional Services

On March 18, 1998, the Supreme Court issued its decision on the Company's appeal
of the  NMPUC's  orders  which had denied the  Company's  proposed  tariffs  for
certain  electric and gas optional  services.  The Supreme  Court ruled that the
NMPUC was within its authority in determining  that the optional  services could
potentially  be  conducted  through  a  non-regulated  subsidiary  and  found no
infringement  on  management  prerogatives.  It held that,  because the optional
services  were of the  nature  of  utility  service,  the NMPUC had the power to
disapprove  the  offering  of such  optional  services  by the gas and  electric
divisions.  The Company has filed a motion for  rehearing  in the Supreme  Court
asking the Supreme Court to reverse the NMPUC's  decision.  Action on the motion
for rehearing is expected  shortly.  The Supreme Court  decision did not address
the legality of operations of the Company's Energy Services  Business Unit which
has been conducting its operations as a division of the Company. The Company has
concluded  that the best  approach at this time is to treat the Supreme  Court's
decision as providing  the NMPUC with  authority to require the Energy  Services
Business Unit to be operated only as a separate subsidiary. The Company believes
that  success in its  non-core  businesses  is  imperative  if the Company is to
continue to be successful in the anticipated  deregulated market environment.  A
favorable  decision by the NMPUC in Case 2620, an  application  filed in 1994 to
create  three  separate  subsidiaries,  would allow the Company to continue  the
Energy Services Business Unit activities through those subsidiaries. The Company
will be filing with the NMPUC in the near future regarding these Energy Services
Business Unit activities, pending a decision in Case 2620.

Disclosure Regarding Forward Looking Statements

        The  Private  Securities  Litigation  Reform  Act of  1995  (the  "Act")
provides a "safe harbor" for  forward-looking  statements to encourage companies
to  provide  prospective  information  about  their  companies  without  fear of
litigation so long as those statements are identified as forward-looking and are
accompanied by meaningful,  cautionary statements  identifying important factors
that could cause actual results to differ materially from those projected in the
statement.   Words  such  as  "estimates,"  "expects,"  "anticipates,"  "plans,"
"believes,"   "projects,"  and  similar  expressions  identify   forward-looking
statements.  Accordingly,  the Company hereby identifies the following important
factors  which  could cause the  Company's  actual  financial  results to differ
materially from any such results which might be projected, forecasted, estimated
or budgeted by the Company in forward-looking statements: (i) adverse actions of
utility  regulatory  commissions;  (ii) utility  industry  restructuring;  (iii)
failure  to  recover  stranded  costs;  (iv)  the  ability  of  the  Company  to
successfully  compete outside its  traditional  regulated  market;  (v) regional
economic  conditions,  which could affect customer growth;  (vi) adverse impacts
resulting from  environmental  regulations;  (vii) loss of favorable fuel supply
contracts;  (viii)  failure  to obtain  water  rights  and  rights-of-way;  (ix)
operational and environmental  problems at generating stations;  (x) the cost of
debt  and  equity  capital;   (xi)  weather  conditions;   and  (xii)  technical
development in the utility industry.



                                       14
<PAGE>
Many of the foregoing  factors  discussed  have been  addressed in the Company's
previous  filings with the SEC pursuant to the Securities  Exchange Act of 1934.
The foregoing  review of factors  pursuant to the Act should not be construed as
exhaustive or as any admission regarding the adequacy of disclosures made by the
Company prior to the effective date of the Act.

PART II -- OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Republic Savings Bank ("RSB") Litigation

As previously  reported,  in July 1996, the United States Supreme Court ruled in
the United  States v.  Winstar  Corporation  ("Winstar  case")  that the Federal
government  had breached its  contractual  obligations  with certain  thrifts in
refusing to  recognize  the  accounting  practices of  supervisory  goodwill and
capital credits. Meadows Resources, Inc. ("Meadows"),  a wholly owned subsidiary
of the Company,  and Republic Holding Company ("RHC"),  wholly owned by Meadows,
have pending before the United States Court of Federal Claims a lawsuit filed in
1992, alleging that the government breached similar contractual  arrangements to
those at issue in the Winstar case by refusing to recognize supervisory goodwill
and capital credits. The Federal government filed a counterclaim alleging breach
by RHC of its  obligation  to  maintain  RSB's net  worth  and moved to  dismiss
Meadows'   claim  for  lack  of  standing.   (See  PART  I,  ITEM  3.  -  "LEGAL
PROCEEDINGS-OTHER  PROCEEDINGS-Republic  Savings Bank ("RSB") Litigation" in the
1997 Form 10-K.)

RSB filed a motion for partial summary  judgment on the issue of liability under
its breach of contract claim based on the United States Supreme Court's decision
in the Winstar  case.  The Federal  government  filed a cross motion for summary
judgment and opposed  RSB's motion.  On December 22, 1997,  the judge entered an
opinion,  addressing  eleven  issues  common  to the  question  of  governmental
liability in a number of cases  including  the RSB case,  ruling in favor of the
plaintiffs on all issues and severely  critical of the  government's  litigation
tactics.  The judge  ordered the Federal  government  to show cause within sixty
days as to why the motions for summary judgment on contract  liability issues of
RSB  and  plaintiffs  in  similar  cases  should  not be  granted.  The  Federal
government  timely  filed its response to the show cause order and RSB filed its
reply.. Decision on summary judgment is still pending. The court has ordered the
parties to appoint  representatives  to try and develop a process for settlement
of the  cases  and has  assigned  a judge  to  assist  with the  process.  It is
premature to estimate the amount of recovery, if any, by Meadows and RHC.

Nuclear Decommissioning Trust

On March 31 and April 21,  1998,  the Company  and the trustee of the  Company's
master  decommissioning  trust filed a civil complaint and an amended complaint,
respectively,    against    several    companies   and   individuals   for   the
under-performance of a life insurance program.  The program,  which was approved
by the NMPUC and set up in a trust in 1987,  is a type of  corporate  owned life
insurance,   and  is  used  to  fund  a  portion   of  the   Company's   nuclear
decommissioning obligations for its 10.2% interest in PVNGS. In the lawsuit, the
Company  asserts  various  tort,   contract  and  equity  theories  against  the
defendants.  The Company is seeking,  among other  things,  damages in an amount
that represents the difference between what the defendants  represented that the
life insurance  program would achieve and the amount that the Company's  experts
currently project that the life insurance  program will achieve.  The Company is
currently unable to predict the ultimate outcome or amount of recovery, if any.


                                       15
<PAGE>

On April 8, 1998,  the  Company  filed a case  before  the NMPUC to relieve  the
Company of the obligation of investing in the life insurance  program. A hearing
date for the Company's request has not been scheduled.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

Annual Meeting

At the  meeting  of  shareholders  held on  April  28,  1998,  the  shareholders
reelected the following  three  nominees to serve as directors  until the annual
meeting of shareholders in 2001, or until their  successors are duly elected and
qualified, as follows:

                                       Votes
                                      Against                         Broker
      Director         Votes For    or Withheld     Abstentions      Non-Votes
      --------         ---------    -----------     -----------      ---------

 John T. Ackerman     36,036,016     406,388            *               *
 Joyce A. Godwin      36,038,580     403,824            *               *
 Manuel Lujan, Jr.    36,016,689     425,715            *               *

As reported in the Definitive 14A Proxy Statement filed March 23, 1998, the name
of each other  director  whose term of office as  director  continues  after the
meeting is as follows:

        Robert G. Armstrong
        Laurence H. Lattman
        Benjamin F. Montoya
        Reynaldo U. Ortiz
        Robert M. Price
        Paul F. Roth

The  approval of the  selection  by the  Company's  Board of Directors of Arthur
Andersen LLP as  independent  auditors  for the fiscal year ending  December 31,
1998, was voted on, as follows:

                           Votes
                          Against                                    Broker
  Votes for             or Withheld           Abstentions          Non-Votes
  ---------             -----------           -----------          ---------

  35,961,751              76,915               403,738                 *

*Not applicable or not readily available.


                                       16
<PAGE>

Bondholder Consents

By written consents executed March 11, 1998, the holders of more than 75% of the
outstanding first mortgage bonds under the Company's  Mortgage,  as supplemented
and amended,  approved changes,  amendments and alterations in the Mortgage,  as
contained in the Fifty-third  Supplemental Indenture dated as of March 11, 1998.
The holders of $463,345,000 principal amount of outstanding first mortgage bonds
approved  the action,  while the  holders of $111  million  principal  amount of
outstanding  first  mortgage  bonds did not vote.  The revisions to the Mortgage
allow the Company more flexibility with respect to property releases, as well as
with respect to covenants and  administrative  requirements  under the Mortgage.
(See Item 2. - "MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS - LIQUIDITY AND CAPITAL RESOURCES".)

ITEM 5.  OTHER INFORMATION

Cobisa-Person Limited Partnership ("PLP")

As previously  reported,  in October 1996, the Company  entered into a long-term
power purchase  contract with the PLP to purchase  approximately  100 MW of unit
contingent  peaking capacity from a gas turbine  generating unit for a period of
20 years,  with an option to renew for an additional five years. The gas turbine
unit will be  constructed  and  operated  by the PLP and will be  located on the
Company's  retired Person  Generating  Station site located in Albuquerque,  New
Mexico.  (See PART I, ITEM 1. -  "BUSINESS  - ELECTRIC  OPERATIONS  - Sources of
Power" in the 1997 Form 10-K.)

On March 18, 1998, the Company and PLP executed amendments to the power purchase
agreement ("PPA"), site lease and the interconnection  agreement, and executed a
new water use lease.  The PPA was  amended to change the  maximum  capacity  the
Company was obligated to take from 116 MW to 132 MW and to change the commercial
operation  date from May 1999 to May 2000.  The Company  formally  notified  the
NMPUC of such contract changes on March 23, 1998.

As part of the final order  concerning  the PLP  project,  the NMPUC  approved a
stipulation  between  the  Company  and NMPUC  staff to develop  and  evaluate a
Request for Proposals ("RFP") for 5 MW of solar capacity. (See PART I, ITEM 1. -
"BUSINESS - ELECTRIC  OPERATIONS - Sources of Power" in the 1997 Form 10-K.) The
stipulation  states that the Company  will not be  obligated  to build a unit or
commit to a power purchase  agreement for solar power prior to NMPUC approval of
a full-cost  recovery  mechanism.  Any cost recovery approval must not place the
Company at a competitive disadvantage.

An RFP to purchase power from solar  generation  resources was issued in January
1998.  Seven  proposals  were  received  by the  Company on March 24,  1998.  In
cooperation  with the NMPUC staff,  the Company has  selected  two  companies to
continue in contract negotiations for this project. The Company expects an NMPUC
decision on or about July 31, 1998. The anticipated in-service date of the solar
facility is May 1999.



                                       17
<PAGE>
The 1997 Gas Rate Case

As previously  reported,  in October  1997,  the Company filed its gas rate case
with the NMPUC  pursuant  to an NMPUC  order  issued in  February  1997.  In its
filing, the Company requested a rate increase of $12.6 million.  The NMPUC staff
recommended a rate increase of $2.5 million. The AG, however, recommended a rate
decrease of $4.9  million.  Other parties to the rate case  recommended  certain
adjustments  to the Company's  proposed rate  increase.  (See PART II, ITEM 7. -
"MANAGEMENT'S  DISCUSSION  AND  ANALYSIS OF FINANCIAL  CONDITION  AND RESULTS OF
OPERATIONS OTHER ISSUES FACING THE COMPANY- REGULATORY ISSUES- The 1997 Gas Rate
Case" in the 1997 Form 10-K.)

An uncontested  stipulation  settling the case was filed with the NMPUC on April
3, 1998, for its approval. A hearing on the stipulation is scheduled for May 13,
1998. If approved, there would be no significant change in the Company's overall
revenue  levels.  However,  the  stipulation  provides  for a  restructuring  of
residential rates, including a decrease in the monthly access fee from $14.56 to
$9.00 with an  offsetting  increase in the  variable  rate for gas  consumption.
Working   groups  would  be   established  to  address  key  issues  related  to
transportation  service and rate design.  The  stipulation  also  establishes  a
mechanism  for  the  recovery  of  certain  costs  incurred  by the  Company  in
settlement  of past gas  supply  contracts.  Recovery  of these  costs  would be
partially  offset by revenues  stemming from  off-system gas sales.  The Company
anticipates  a final order from the NMPUC on the  stipulation  during the second
quarter of 1998.

Should the stipulation be rejected by the NMPUC, a hearing of the full litigated
case would be scheduled for the near future.  The Company is currently unable to
predict the ultimate outcome of this case.

Proposed Rulemaking

As previously reported,  in February 1998, the NMPUC issued a notice of proposed
rulemaking  (the  "Notice")   which,  if  adopted,   would  require   additional
information to be disclosed on customer bills. The Notice proposed,  among other
things,  that each electric  utility  separately state in its bills to customers
the portions of its rates which are attributable to generation, transmission and
distribution functions,  respectively. (See PART I, ITEM 1. - " BUSINESS - RATES
AND REGULATION - Proposed Rulemakings" in the 1997 Form 10-K.)

In March 1998,  comments were filed by utility  companies  which are under NMPUC
jurisdiction,  including the Company.  The utility companies  generally maintain
that dissemination of unbundled billing information as proposed in the Notice is
premature,  will  confuse  consumers,  and will not provide  them with  accurate
information.  The utility  companies also maintain that their  existing  billing
systems cannot  accommodate such a change without spending large amounts of time
and money on a project of this nature. The utility companies,  however,  offered
alternatives,  such as providing  bill  stuffers to customers in the interim and
conducting  workshops or  undertaking  further  study.  The Company is currently
unable to predict the final outcome of this proposed rulemaking.


                                       18
<PAGE>

Nuclear Safety Performance Rating on PVNGS

On April 8, 1998, Arizona Public Service Company,  the operating agent of PVNGS,
received  the latest  Systematic  Assessment  of Licensee  Performance  ("SALP")
rating from the Nuclear  Regulatory  Commission  on the  operations of the PVNGS
units.

SALP reports rate safety performance at nuclear plants in four functional areas:
(i) plant  operations;  (ii)  maintenance;  (iii)  engineering;  and (iv)  plant
support.  Ratings of category 1, 2, or 3 are  assigned,  reflecting  "superior,"
"good" or "adequate" performance.  PVNGS was rated as "superior" in maintenance,
engineering and plant support categories, and was rated as "good" in the area of
plant operations.

Indian Tribes: Air Quality Planning and Management

On April 13, 1998, the Company,  in conjunction with Salt River Project,  Nevada
Power Company and Tucson Electric Power Company,  filed a petition for review of
the United States  Environmental  Protection Agency ("EPA") final rule,  "Indian
Tribes:  Air Quality  Planning and  Management",  in the United  States Court of
Appeals for the District of Columbia Circuit. The purpose of this petition is to
challenge the final rule,  which is based on treatment of tribes as states under
the Clean Air Act (the "Act"), on several grounds.  The particular  concerns for
the  Company  include  the lack of  judicial  review  provisions  for  operating
permits,  jurisdictional  issues and  conflict  with  pre-existing  treaties  or
binding agreements. In the appeal, the Company's interests as operator and joint
owner of SJGS, owner of other facilities located on reservations  located in New
Mexico,  and joint owner of Four Corners Generating Station ("Four Corners") are
involved. The Navajo Nation is a tribe which would potentially assert its status
as a state  under the Act  pursuant  to the EPA rule in  question.  The  Company
cannot  predict the outcome of this appeal but believes  that the Navajo  Nation
would  not  have  jurisdiction  to  regulate  SJGS as the  plant  is not  within
reservation  boundaries or within Indian country as that term is used in the EPA
rule in question.  Similarly, the Company's position is that Four Corners is not
subject  to  environmental  regulation  by the tribe  under the lease that is in
effect until 2002.

Transmission Rate Case Settlement

As previously reported,  in December 1996, a settlement agreement reached by the
Company  and firm  transmission  customers  was filed  with the  Federal  Energy
Regulatory Commission ("FERC"). In accordance with the stipulated agreement, the
Company will refund, including interest,  approximately $4.0 million to its firm
transmission customers and its firm wholesale transmission service revenues were
reduced by approximately  $1.6 million  beginning in 1997. (See PART 1, ITEM 1 -
"BUSINESS  - RATES AND  REGULATION  -  Electric  Rates and  Regulation  - FERC -
Transmission Rate Case Settlement" in the 1997 Form 10-K.)

On April 21, 1998, FERC approved the settlement with no changes. The Company was
ordered to refund amounts  collected in excess of the settlement rates within 30
days.

The Company's  ancillary  service rates were not settled in this agreement and a
prehearing  conference  has been set for May 5, 1998,  to set a schedule for the
hearing on these rates.



                                       19
<PAGE>

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

a.  Exhibits:

    3.1*    Restated Articles of Incorporation of the Company, as amended
            through May 10, 1985

    3.2*    By-laws of Public Service Company of New Mexico With All Amendments
            to and including December 5, 1994

    4.3     Fifty-third  Supplemental  Indenture,  dated as of March  11,  1998,
            supplemental to Indenture of Mortgage and Deed of Trust, dated as of
            June 1, 1947, between the Company and The Bank of New York (formerly
            Irving Trust Company), as Trustee

    4.4     Indenture  (for Senior Notes),  dated as of March 11, 1998,  between
            the Company and The Chase Manhattan Bank, as Trustee

    4.5     First   Supplemental   Indenture,   dated  as  of  March  11,  1998,
            supplemental to Indenture,  dated as of March 11, 1998,  between the
            Company and The Chase Manhattan Bank, as Trustee

    4.6     Second  Supplemental   Indenture,   dated  as  of  March  11,  1998,
            supplemental to Indenture,  dated as of March 11, 1998,  between the
            Company and The Chase Manhattan Bank, as Trustee

    10.72   Revolving  Credit  Agreement  dated as of March 11,  1998  among the
            Company, The Chase Manhattan Bank,  Citibank,  N.A., Morgan Guaranty
            Trust  Company  of New York,  and Chase  Securities,  Inc.,  and the
            Initial Lenders Named Therein

    10.73   Refunding Agreement No. 8A, dated as of December 23, 1997, among the
            Company, the Owner Participant Named Therein,  State Street Bank and
            Trust  Company,  as Owner  Trustee,  The Chase  Manhattan  Bank,  as
            Indenture Trustee, and First PV Funding Corporation

    10.74** Third  Restated  and Amended  Public  Service  Company of New Mexico
            Performance Stock Plan

    15.0    Letter Re: Unaudited Interim Financial Information

    27      Financial Data Schedule

    99.22   1997 Supplemental Indenture, dated as of December 23, 1997, to Trust
            Indenture,  Mortgage,  Security  Agreement and  Assignment of Rents,
            dated as of August 12, 1986, between State Street Bank and Trust, as
            Owner Trustee, and The Chase Manhattan Bank, as Indenture Trustee

   * The Company  hereby  incorporates  the exhibits by reference  pursuant to
     Exchange Act Rule 12b-32 and Regulation S-K, Section 10, paragraph (d).

  ** Designates each management  contract or compensatory  plan or arrangement
     required to be identified  pursuant to paragraph 3 of Item 14 (a) of Form
     10-K.

b. Reports on Form 8-K:

       None.

                                       20
<PAGE>

                                    Signature
                                    ---------


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

                              PUBLIC SERVICE COMPANY OF NEW MEXICO
                              ------------------------------------
                                          (Registrant)


Date:  May 8, 1998                    /s/ Donna M. Burnett
                              ------------------------------------
                                        Donna M. Burnett

                                   Corporate Controller and
                                   Chief Accounting Officer
                                 (Officer duly authorized to
                                      sign this report)










                                       21
<PAGE>


================================================================================



                      PUBLIC SERVICE COMPANY OF NEW MEXICO
                                       to
                              THE BANK OF NEW YORK
                        (formerly Irving Trust Company),
                                     Trustee




                                 --------------


                       FIFTY-THIRD SUPPLEMENTAL INDENTURE

                           Dated as of March 11, 1998


            (Supplemental to Indenture of Mortgage and Deed of Trust
                            dated as of June 1, 1947)


        Making Provision for Certain Changes to the Indenture of Mortgage
             and Deed of Trust With the Consent of Holders of Bonds


               The Mortgage of which this instrument forms a part
                   covers real property, personal property and
                                    chattels.



           The above-described Indenture of Mortgage and Deed of Trust
                   contains after-acquired property provisions
              (subject to certain limitations on such provisions as
               therein expressed and subject to Article 6 of this
                      Fifty-third Supplemental Indenture).



================================================================================


63028791.15                                                   Document No. 503

<PAGE>


         FIFTY-THIRD  SUPPLEMENTAL  INDENTURE dated as of March 11, 1998 between
PUBLIC SERVICE COMPANY OF NEW MEXICO, a corporation organized and existing under
the laws of the State of New Mexico,  Alvarado Square,  Albuquerque,  New Mexico
87158 (hereinafter called the "Company"),  party of the first part, and THE BANK
OF NEW YORK  (formerly  Irving  Trust  Company),  a  corporation  organized  and
existing under the laws of the State of New York, One Wall Street, New York, New
York 10286 (hereinafter  sometimes called the "Trustee"),  as Trustee,  party of
the second part.

         WHEREAS, the Company did heretofore execute and deliver an Indenture of
Mortgage and Deed of Trust dated as of June 1, 1947 (hereinafter  referred to as
the "Original  Indenture"),  to the Trustee to secure an issue of First Mortgage
Bonds of the  Company,  issuable in series,  and created  thereunder  an initial
series of bonds,  designated as First  Mortgage  Bonds,  2-7/8% Series due 1977,
none of which bonds is presently outstanding; and

         WHEREAS, the Company did heretofore execute and deliver a certain First
Supplemental  Indenture  dated as of January 1, 1948, to the Trustee and created
thereunder a series of bonds  designated as First Mortgage Bonds,  3-3/8% Series
due 1978, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Second  Supplemental  Indenture dated as of December 1, 1948, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  3-3/8%
Series due 1977, none of which bonds is presently outstanding; and

         WHEREAS, the Company did heretofore execute and deliver a certain Third
Supplemental  Indenture dated as of December 1, 1950, to the Trustee and created
thereunder a series of bonds  designated as First Mortgage  Bonds, 3% Series due
1980, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fourth  Supplemental  Indenture  dated as of March 1, 1952,  to the  Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  3-3/4%
Series due 1982, none of which bonds is presently outstanding; and

         WHEREAS, the Company did heretofore execute and deliver a certain Fifth
Supplemental  Indenture  dated as of April 1, 1954,  to the  Trustee and created
thereunder a series of bonds  designated as First Mortgage Bonds,  3-5/8% Series
due 1984, none of which bonds is presently outstanding; and

         WHEREAS, the Company did heretofore execute and deliver a certain Sixth
Supplemental  Indenture dated as of July 1, 1955, to the Trustee for the purpose
of further  assuring,  conveying  and  confirming  unto the  Trustee  additional
property and also, by different description, certain property which is described
in the Granting Clauses of the Original Indenture,  no bonds having been created
or issued thereunder; and


63028791.15                                                   Document No. 503

<PAGE>

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Seventh  Supplemental  Indenture  dated as of June 1, 1958,  to the  Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  4-3/8%
Series due 1988, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Eighth  Supplemental  Indenture dated as of February 1, 1961, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  4-7/8%
Series due 1991, none of which bonds is presently outstanding; and

         WHEREAS, the Company did heretofore execute and deliver a certain Ninth
Supplemental  Indenture  dated as of  January 1, 1967,  to the  Trustee  for the
purpose of modifying  certain  provisions  of the Original  Indenture,  no bonds
having been created or issued thereunder; and

         WHEREAS, the Company did heretofore execute and deliver a certain Tenth
Supplemental  Indenture  dated as of May 1, 1967,  to the  Trustee  and  created
thereunder a series of bonds  designated as First Mortgage Bonds,  5-7/8% Series
due 1997, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Eleventh  Supplemental  Indenture  dated as of April 1, 1969, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  7-1/4%
Series due 1999 (the "1969 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twelfth  Supplemental  Indenture  dated as of September 15, 1971, to the Trustee
for the purpose of amending  the  Original  Indenture in one respect and for the
purpose of creating  thereunder a series of bonds  designated as First  Mortgage
Bonds, 8-1/8% Series due 2001 (the "1971 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirteenth  Supplemental Indenture dated as of June 15, 1972, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  7-1/2%
Series due 2002 (the "1972 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fourteenth  Supplemental  Indenture  dated as of December  1, 1974  (hereinafter
referred to as the "Fourteenth Supplemental Indenture"),  to the Trustee for the
purpose of amending  the  Original  Indenture  in certain  respects  and for the
purpose  of  further  assuring,   conveying  and  confirming  unto  the  Trustee
additional property, no bonds having been created or issued thereunder; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fifteenth  Supplemental Indenture dated as of March 15, 1975, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  9-1/8%
Series due 2005 (the "1975 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Sixteenth  Supplemental  Indenture dated as of April 1, 1976, to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1976
Pollution Control Series, none of which bonds is presently outstanding; and


63028791.15                                                   Document No. 503

                                       2
<PAGE>


         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Seventeenth  Supplemental Indenture dated as of June 1, 1977, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds,  8-1/8%
Series due 2007 (the "1977 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Eighteenth  Supplemental Indenture dated as of March 1, 1978, to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1978
Pollution Control Series A, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Nineteenth Supplemental Indenture dated as of April 15, 1978, to the Trustee for
the  purpose of further  assuring,  conveying  and  confirming  unto the Trustee
additional property, no bonds having been created or issued thereunder; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twentieth  Supplemental  Indenture  dated as of May 1, 1978,  to the Trustee and
created  thereunder a series of bonds  designated as First  Mortgage  Bonds,  9%
Series due 2008 (the "1978 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-first  Supplemental  Indenture  dated as of  September  1,  1979,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds,  1979  Pollution  Control  Series  A,  none of which  bonds is  presently
outstanding hereunder; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-second Supplemental Indenture dated as of October 1, 1979, to the Trustee
for the purpose of amending  the  Original  Indenture in one respect and for the
purpose of creating  thereunder a series of bonds  designated as First  Mortgage
Bonds,  10-1/8% Series due 2004,  none of which bonds is presently  outstanding;
and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-third Supplemental Indenture dated as of May 15, 1980, to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1980
Pollution Control Series A, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-fourth  Supplemental  Indenture  dated as of September  15, 1980,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds, 12.95% Series due 1985, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-fifth  Supplemental Indenture dated as of October 1, 1981, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
17-1/2% Series due 2011, none of which bonds is presently outstanding; and


63028791.15                                                   Document No. 503


                                       3
<PAGE>

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-sixth Supplemental Indenture dated as of November 1, 1982, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
13-1/8% Series due 2012, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-seventh  Supplemental  Indenture  dated as of September  1, 1983,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds,  12-7/8% Series due 2013,  none of which bonds is presently  outstanding;
and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-eighth  Supplemental  Indenture  dated as of November  15,  1983,  to the
Trustee for the purpose of further  assuring,  conveying and confirming unto the
Trustee additional property,  no bonds having been created or issued thereunder;
and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Twenty-ninth Supplemental Indenture dated as of December 1, 1983, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
1983 Pollution  Control Series A, none of which bonds is presently  outstanding;
and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirtieth Supplemental Indenture dated as of August 15, 1984, to the Trustee and
created thereunder a series of bonds designated as First Mortgage Bonds, 13-1/8%
Series due 1994, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-first  Supplemental  Indenture  dated as of September  15,  1984,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds,  1984  Pollution  Control  Series,  none  of  which  bonds  is  presently
outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-second  Supplemental  Indenture  dated as of  December  1,  1984,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds,  1984  Pollution  Control  Series  A,  none of which  bonds is  presently
outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-third  Supplemental  Indenture  dated as of December  15, 1987 (the "33rd
Supplement"),  to the Trustee for the purpose of further assuring, conveying and
confirming unto the Trustee additional property, no bonds having been created or
issued thereunder; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-fourth  Supplemental  Indenture dated as of March 8, 1991, to the Trustee
and created  thereunder a series of bonds  designated as first  Mortgage  Bonds,
1991 Series A, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-fifth  Supplemental  Indenture  dated as of March 8, 1991, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
1991 Series B, none of which bonds is presently outstanding; and


63028791.15                                                   Document No. 503

                                       4
<PAGE>

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-sixth  Supplemental  Indenture  dated as of March 8, 1991, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
1991 Series C, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-seventh  Supplemental Indenture dated as of November 1, 1992 (hereinafter
referred to as the "Thirty-seventh  Supplemental Indenture"), to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1992
Pollution Control Series A (the "1992 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-eighth  Supplemental  Indenture dated as of January 1, 1993  (hereinafter
referred to as the "Thirty-eighth  Supplemental Indenture"),  to the Trustee and
created  thereunder two new series of bonds  designated as First Mortgage Bonds,
1993  Pollution  Control  Series A, and First  Mortgage  Bonds,  1993  Pollution
Control Series B (collectively, the "First 1993 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Thirty-ninth  Supplemental  Indenture  dated as of August 15, 1993  (hereinafter
referred to as the "Thirty-ninth  Supplemental  Indenture"),  to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1993
Pollution Control Series C (the "Second 1993 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fortieth  Supplemental  Indenture  dated  as of  August  15,  1993  (hereinafter
referred  to as the  "Fortieth  Supplemental  Indenture"),  to the  Trustee  and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1993
Pollution  Control  Series D (the "Third 1993  Series";  together with the First
1993 Series and the Second 1993 Series, the "1993 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-first Supplemental Indenture dated as of December 14, 1993, to the Trustee
and created  thereunder a series of bonds  designated as First  Mortgage  Bonds,
1993 Series A, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-second  Supplemental  Indenture  dated as of  December  14,  1993,  to the
Trustee and created  thereunder a series of bonds  designated as First  Mortgage
Bonds, 1993 Series B, none of which bonds is presently outstanding; and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-third  Supplemental Indenture dated as of June 7, 1995, to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1995
Series A (the "First 1995 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-fourth Supplemental Indenture dated as of June 7, 1995, to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1995
Series B (together with the First 1995 Series, the "1995 Series"); and

63028791.15                                                   Document No. 503

                                       5
<PAGE>


         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-fifth  Supplemental  Indenture  dated as of December 1, 1996  (hereinafter
referred to as the  "Forty-fifth  Supplemental  Indenture"),  to the Trustee and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1996
Pollution  Control Series A and First  Mortgage  Bonds,  1996 Pollution  Control
Series B (collectively, the "First 1996 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-sixth  Supplemental  Indenture  dated as of December 1, 1996  (hereinafter
referred to as the  "Forty-sixth  Supplemental  Indenture"),  to the Trustee and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1996
Pollution  Control Series C and First  Mortgage  Bonds,  1996 Pollution  Control
Series D (collectively, the "Second 1996 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-seventh  Supplemental  Indenture dated as of December 1, 1996 (hereinafter
referred to as the "Forty-seventh  Supplemental Indenture"),  to the Trustee and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1996
Pollution  Control Series E and First  Mortgage  Bonds,  1996 Pollution  Control
Series F (collectively, the "Third 1996 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-eighth  Supplemental  Indenture dated as of December 1, 1996  (hereinafter
referred to as the "Forty-eighth  Supplemental  Indenture"),  to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1996
Pollution  Control  Series G (the "Fourth 1996 Series";  together with the First
1996  Series,  the  Second  1996  Series and the Third  1996  Series,  the "1996
Series");

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Forty-ninth  Supplemental  Indenture  dated as of February 1, 1997  (hereinafter
referred to as the  "Forty-ninth  Supplemental  Indenture"),  to the Trustee and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1997
Pollution  Control Series A and First  Mortgage  Bonds,  1997 Pollution  Control
Series B (collectively, the "First 1997 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fiftieth  Supplemental  Indenture  dated as of  February  1,  1997  (hereinafter
referred  to as the  "Fiftieth  Supplemental  Indenture"),  to the  Trustee  and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1997
Pollution  Control Series C and First  Mortgage  Bonds,  1997 Pollution  Control
Series D (collectively, the "Second 1997 Series"); and

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fifty-first  Supplemental  Indenture  dated as of February 1, 1997  (hereinafter
referred to as the  "Fifty-first  Supplemental  Indenture"),  to the Trustee and
created  thereunder two series of bonds designated as First Mortgage Bonds, 1997
Pollution  Control Series E and First  Mortgage  Bonds,  1997 Pollution  Control
Series F (collectively, the "Third 1997 Series"); and

63028791.15                                                   Document No. 503

                                       6
<PAGE>

         WHEREAS,  the  Company  did  heretofore  execute  and deliver a certain
Fifty-second  Supplemental  Indenture dated as of February 1, 1997  (hereinafter
referred to as the "Fifty-second  Supplemental  Indenture"),  to the Trustee and
created  thereunder a series of bonds  designated as First Mortgage Bonds,  1997
Pollution  Control  Series G (the "Fourth 1997 Series";  together with the First
1997  Series,  the  Second  1997  Series and the Third  1997  Series,  the "1997
Series"); and

         WHEREAS,  on  March  11,  1998,  all  bonds  of the  1995  Series  were
surrendered by the Company to the Trustee for cancellation; none of the bonds of
the 1995 Series is presently outstanding; and

         WHEREAS,  on March 11, 1998, (i) the Company deposited with the Trustee
in accordance  with the provisions of the Original  Indenture cash in the amount
necessary  for the  redemption of all bonds of the  following  series:  the 1969
Series,  the 1971 Series,  the 1972 Series, the 1975 Series, the 1977 Series and
the 1978  Series  (collectively,  the  "Defeased  Series"),  and (ii)  notice of
redemption  of the  Defeased  Series was given as in  Article 5 of the  Original
Indenture  provided;  none of the  bonds of the  Defeased  Series  is  presently
outstanding; and

         WHEREAS,  on March 11,  1998,  after giving  effect to such  surrender,
deposit and giving of notice,  the aggregate  principal  amount of bonds of each
series presently outstanding (the "Presently Outstanding Series") is as follows:

                                                  Principal Amount
                        Series                       Outstanding
                        ------                    ----------------
 
          1992 Series                               $ 37,300,000
          First 1993 Series (Series A)                26,000,000
          First 1993 Series (Series B)                20,000,000
          Second 1993 Series                         100,000,000
          Third 1993 Series                           36,000,000
          First 1996 Series (Series A)                17,712,379
          First 1996 Series (Series B)                 5,287,621
          Second 1996 Series (Series C)               30,838,793
          Second 1996 Series (Series D)                9,206,207
          Third 1996 Series (Series E)                28,493,828
          Third 1996 Series (Series F)                 8,506,172
          Fourth 1996 Series (Series G)               65,000,000
          First 1997 Series (Series A)                24,000,000
          First 1997 Series (Series B)                16,000,000
          Second 1997 Series (Series C)               22,200,000
          Second 1997 Series (Series D)               14,800,000
          Third 1997 Series (Series E)                13,800,000
          Third 1997 Series (Series F)                 9,200,000
          Fourth 1997 Series (Series G)               90,000,000
                                                    ------------
                                                    $574,345,000;  and
                                                    ============

63028791.15                                                   Document No. 503

                                       7
<PAGE>

         WHEREAS,  all  bonds of the  Presently  Outstanding  Series  have  been
pledged in good faith by the Company as specified in the indentures supplemental
to the Original Indenture creating such series; and

         WHEREAS,  the pledgee of all of the bonds of the Presently  Outstanding
Series  (the  "Pledgee")  is not an  affiliate  of the  Company  or of any other
obligor on the bonds; and

         WHEREAS,  the Company  desires to change,  alter and amend the Original
Indenture (as heretofore  supplemented and amended) in certain respects;  and to
that end the  Company  desires to make,  execute  and  deliver to the  Trustee a
Supplemental Indenture in the form hereof for the purposes herein provided; and

         WHEREAS,  it is provided in Article 15 of the Original  Indenture  that
the Company and the Trustee,  with the consent of the holders of at least 75% in
aggregate principal amount of the bonds at any time outstanding,  may enter into
an indenture supplemental thereto for the purpose of changing or altering in any
manner  any of the  provisions  of the  Original  Indenture  subject  to certain
limitations specified in said Article 15; and

         WHEREAS,  the  Pledgee  has,  as to all  Presently  Outstanding  Series
(aggregating  $574,345,000 in principal amount) other than the First 1993 Series
($46,000,000  in principal  amount) and the Fourth 1996 Series  ($65,000,000  in
principal  amount)  (all bonds of the  Presently  Outstanding  Series other than
bonds  of the  First  1993  Series  and  bonds of the  Fourth  1996  Series  are
hereinafter  collectively  called the "Consenting  Bonds";  the Consenting Bonds
aggregating  $463,345,000  in  principal  amount),  consented  in  writing  (the
"Written  Consent"),  in the  manner  provided  in  Article  15 of the  Original
Indenture,  to the  execution  and  delivery  of this  Fifty-third  Supplemental
Indenture and the changes,  alterations and amendments to the Original Indenture
(as heretofore  supplemented and amended) made by this Fifty-third  Supplemental
Indenture,  and the Board of Directors has, by resolution,  duly  authorized and
directed the execution and delivery of this Fifty-third Supplemental Indenture;

         AND WHEREAS,  all  conditions and  requirements  necessary to make this
Fifty-third  Supplemental  Indenture a valid,  legal and binding  instrument  in
accordance  with its terms have been done and  performed,  and the execution and
delivery of this  Fifty-third  Supplemental  Indenture have been in all respects
duly authorized;

         NOW, THEREFORE,  THIS FIFTY-THIRD  SUPPLEMENTAL  INDENTURE  WITNESSETH:
That Public Service Company of New Mexico,  in consideration of the premises and
of One Dollar  ($1.00) to it duly paid by the Trustee at or before the ensealing
and delivery of these presents, the receipt whereof is hereby acknowledged,  for
itself  and its  successors,  does  hereby  covenant  and  agree to and with the
Trustee and its  successors in the trust under the Original  Indenture,  for the
benefit  of those  who  shall  hold the  bonds,  or any of  them,  to be  issued
hereunder and thereunder, as hereinafter provided, as follows:

                                       8
<PAGE>


                                   ARTICLE 1.

                          CHANGES TO ARTICLES 1 AND 3.

         SECTION 1.01.  Anything in Section 1.03(g) of the Original Indenture to
the  contrary  notwithstanding,  an  engineer  may also be a  limited  liability
company,  a limited liability  partnership,  a limited  partnership or any other
firm or person.

         SECTION 1.02.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, the Company shall no longer be entitled to apply to the
Trustee  for the  authentication  and  delivery  of bonds  under the  Indenture,
whether upon the basis of (i) property  additions  included in a computation  of
net property additions (Section 3.04), (ii) bonds theretofore  authenticated and
delivered  under the  Indenture  that shall have been paid,  retired,  redeemed,
cancelled or  surrendered to the Trustee for  cancellation,  or for the payment,
retirement or redemption of which moneys in the necessary amount shall have been
deposited with, or shall then be held, by the Trustee (Section 3.07), (iii) cash
(Section 3.08) or (iv) prior lien bonds (Section 3.11).


                                   ARTICLE 2.

                          CHANGES TO ARTICLES 4 AND 6.

         SECTION 2.01.  Effective upon surrender for cancellation to the Trustee
of all  Consenting  Bonds,  the following  Sections of Article 4 of the Original
Indenture (as heretofore  amended and  supplemented) are hereby deleted in their
entirety  and shall no longer  have any  force or  effect  as  covenants  of the
Company: Sections 4.07, 4.10, 4.11, 4.16, 4.17, 4.18, 4.19, 4.20, 4.21 and 4.22.

         SECTION 2.02.  Effective upon surrender for cancellation to the Trustee
of all Consenting  Bonds,  (i) the dollar amount in Section 4.06 of the Original
Indenture (as heretofore amended) is increased from $500,000 to $25,000,000, and
(ii) the  requirement  for an annual  certificate  described  in the  concluding
sentence of the first paragraph of such Section 4.06 is deleted.

         SECTION 2.03.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, the following new Section 4.25 is added to the Original
Indenture:

                  "Section  4.25.  The Company  covenants and agrees that (i) it
         will  request  releases  from the lien of this  Indenture  pursuant  to
         Section 8.14 only if it shall, not later than the effectiveness of such
         releases,  have  subjected to the operation and lien of this  Indenture
         property as would be included in the  definition of property  additions
         contained  in Section  1.05  which has a fair  value to the  Company at
         least equal to the fair value of the  property  the release of which is
         being  requested,  and  (ii) any  property  so to be  subjected  to the
         operation and lien of this Indenture shall not be subject to a mortgage
         or other lien (except permitted encumbrances) prior to the lien of this
         Indenture to secure bonds or other  evidences  of  indebtedness  of any
         person."

                                       9
<PAGE>


         SECTION 2.04.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, Section 6.04(d) of the Original Indenture is amended to
eliminate therefrom any requirement that any report be filed by the Trustee with
the Securities and Exchange Commission.


                                   ARTICLE 3.

                              CHANGES TO ARTICLE 8.

         SECTION 3.01.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds,  Section 8.03 is changed to (i) increase the percentage
in clause (ii)(a) of Section 8.03 from sixty per centum (60%) to one hundred per
centum (100%) and (ii) delete therefrom clause (ii) (b) in its entirety.

         SECTION 3.02.  Effective upon surrender for cancellation to the Trustee
of all Consenting  Bonds,  Section 8.04 is changed to increase the dollar amount
therein specified from $25,000 to $5,000,000.

         SECTION 3.03.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, Section 8.11 is changed as follows:

                  (A) subdivision (1) of Section 8.11 is changed to (i) decrease
         the percentage  amount in clause (a) of such  subdivision  from 166% to
         100%,  (ii) delete in their  entirety  clauses (b) and (c) of , and the
         proviso to, such  subdivision  and (iii) add a new clause (b):  "and/or
         (b) in an  amount  equal  to the  cost or  fair  value  to the  Company
         (whichever is less) of property  additions then being  subjected to the
         operation  and  lien of this  Indenture  by an  indenture  supplemental
         hereto";

                   (B) the third  paragraph  of  Section  8.11 is changed to (i)
         include a reference to subdivision  (1)(b) in addition to the reference
         to subdivision  (1)(a) and (ii) amend  sub-paragraph (a) thereof in its
         entirety to read as follows: "(a) an engineer's  certificate specifying
         the property  additions either (i) purchased,  constructed or otherwise
         acquired by the Company subsequent to the receipt by the Trustee of the
         trust  monies  being  withdrawn  or (ii) then  being  subjected  to the
         operation and lien of this  Indenture;  and  containing  the statements
         required by paragraphs (a) through (h) of subdivision (3)(B) of Section
         3.06 (with such  omissions  and  variations  as may be  appropriate  by
         reason of the fact  that the  withdrawal  of trust  moneys  under  this
         Section  8.11 rather than the  authentication  and delivery of bonds is
         being applied for;";

                   (C) the fourth  paragraph  of  Section  8.11  (pertaining  to
         former  subdivisions  (1)(b) and (c) of Section 8.11) is deleted in its
         entirety; and

                   (D) the sixth  paragraph of Section 8.11  (pertaining  to the
         purchase or redemption of bonds by the Trustee) is deleted therefrom.


                                       10
<PAGE>

         SECTION 3.04.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, the following new Section 8.14 is added to the Original
Indenture:

                           "SECTION 8.14. The Trustee shall,  whenever from time
              to time requested by the Company, and without requiring compliance
              with any of the  provisions  of  Section  8.03 of this  Indenture,
              release  from  the  lien  of  this  Indenture  any  or  all of the
              mortgaged  property;  such  release to be made upon receipt by the
              Trustee of:

                       (A) A written  request of the  Company for the release of
                  any property, describing the same in reasonable detail.

                       (B) A certificate of the Company  stating that no default
                  as defined in Section 9.01 has happened and is continuing.

                       (C) An  engineer's  certificate,  made and dated not more
                  than sixty  (60) days  prior to the time of such  application,
                  setting forth in substance as follows:

                              (1) the then fair  value,  in the  opinion  of the
                             signer, of the property to be released;

                              (2) the then  fair  value to the  Company,  in the
                             opinion of the signer,  of any property as would be
                             included in the  definition  of property  additions
                             contained  in Section  1.05 which will be subjected
                             to the operation and lien of this Indenture in lieu
                             of the property  being  released,  which fair value
                             shall be at least  equal  to the  then  fair  value
                             specified  in  the  foregoing  clause  (1)  (if  an
                             independent  engineer's certificate as provided for
                             in the following sub-paragraph (D) is required, the
                             then  fair  value of the  property  to be  released
                             shall be deemed to be as stated in such  engineer's
                             certificate   or   such   independent    engineer's
                             certificate, whichever is the higher); and

                              (3) that such  release  is, in the  opinion of the
                             signer, desirable in the conduct of the business of
                             the Company and will not impair the security  under
                             this Indenture in  contravention  of the provisions
                             hereof.

                       (A) In case, as shown by said engineer's certificate, the
                  fair value of the  property  to be  released  and of all other
                  property or securities  released since the commencement of the
                  then current  calendar  year, as set forth in the  certificate
                  required  pursuant  to  sub-paragraph  (C),  and  any  similar
                  certificates  pursuant to any other sections of this Article 8
                  or any sections of any indenture  supplemental  hereto, is ten
                  per centum (10%) or more of the aggregate  principal amount of
                  bonds at the time  outstanding,  unless  the fair value of the
                  property to be released,  as set forth in the certificate,  is
                  less  than  $25,000  or less than one per  centum  (1%) of the
                  aggregate  principal amount of bonds at the time  outstanding,
                  an independent engineer's certificate, made and dated not more
                  than sixty  (60) days  prior to the date of such  application,
                  stating  that the  signer has  examined  the  written  request
                  furnished to the Trustee; stating as to such property the then


                                       11
<PAGE>

                  fair value thereof in the opinion of the signer, together with
                  the  signer's  report  thereon  which  shall  contain  a brief
                  statement   of   the   conditions   governing   the   signer's
                  determination  of such  fair  value  and  stating  that in the
                  opinion  of the  signer  such  release  will  not  impair  the
                  security  under  this  Indenture  in   contravention   of  the
                  provisions  hereof;  and in case, as shown by said  engineer's
                  certificate, the consideration for the property to be released
                  includes additional property of a fair value to the Company of
                  not less than $25,000 and not less than one per centum (1%) of
                  the  aggregate  principal  amount  of the  bonds  at the  time
                  outstanding, and if such property has, within six months prior
                  to the date of acquisition  thereof by the Company,  been used
                  or operated by a person or persons other than the Company in a
                  business similar to that in which it has been or is to be used
                  or operated by the Company, a similar  independent  engineer's
                  certificate with respect to the then fair value to the Company
                  of such  additional  property  shall also be  furnished to the
                  Trustee.

                       (B) The indentures supplemental hereto, mortgages, deeds,
                  conveyances, assignments, transfers and instruments of further
                  assurance,  if any,  specified in clause (2) of the opinion of
                  counsel referred to in the following sub-paragraph (F).

                       (C) An opinion of counsel:

                              (1) stating that the  instruments  which have been
                             or are therewith  delivered to the Trustee  conform
                             to  the   requirements   of  this   Indenture   and
                             constitute    sufficient   authority   under   this
                             Indenture  for the  Trustee to execute  and deliver
                             the release requested, and that the property may be
                             released  from  the  operation  of the lien of this
                             Indenture   pursuant  to  the  provisions  of  this
                             Section 8.14; and

                              (2) specifying the indentures supplemental hereto,
                             mortgages,    deeds,   conveyances,    assignments,
                             transfers  and  instruments  of  further  assurance
                             which will be  sufficient  to subject to the direct
                             lien of this  Indenture  the property  described in
                             clause  (2)  of  the   above-mentioned   engineer's
                             certificate.

                       (A) A  certificate  of  the  Company  and an  opinion  of
                  counsel as to compliance with conditions precedent."

                                       12
<PAGE>

         SECTION  3.05.  The following new Section 8.15 is added to the Original
Indenture:

                      "SECTION 8.15.  (a) The Trustee shall,  whenever from time
              to time requested by the Company, and without requiring compliance
              with any provisions of Section 8.03 of this Indenture or requiring
              the substitution of any property or securities  therefor,  release
              from  the  lien  of  this  Indenture  any or all of the  mortgaged
              property which,  on the date of such release:  (I) is (i) properly
              chargeable to any of the following accounts  established under the
              Uniform  System of Accounts  Prescribed  for Public  Utilities and
              Licensees  subject to the  provisions  of the Federal Power Act as
              promulgated by the Federal Energy Regulatory Commission (18 C.F.R.
              Part 101) (the "System of  Accounts"):  303,  370,  389, 390, 391,
              392, 394, 396, 397, 398 and 399, or (ii) property which is carried
              on the  Company's  books of account as  "nonutility  property"  or
              "plant held for future use",  in each case as more fully  detailed
              in Annex A to the Fifty-third  Supplemental  Indenture dated as of
              March 11,  1998,  which  supplemental  indenture  is an  indenture
              supplemental  hereto (the "Fifty-third  Supplemental  Indenture");
              and (II) is not  property  which is  included  or  intended  to be
              included under the lien of the Indenture  pursuant to Section 5.04
              of the Fifty-third Supplemental Indenture; such release to be made
              by the Trustee upon receipt of:

                           (A) A written  request of the Company for the release
                  of any property,  describing the same in reasonable detail and
                  stating,  as  applicable,  the  account  under  the  System of
                  Accounts to which the same is properly  chargeable or that the
                  property is  "nonutility  property"  or "plant held for future
                  use" as  detailed in Annex A to the  Fifty-third  Supplemental
                  Indenture.

                           (B) A  certificate  of the  Company  stating  that no
                  default  as  defined  in  Section  9.01  has  happened  and is
                  continuing.

                           (C) An  engineer's  certificate,  made and  dated not
                  more  than   sixty  (60)  days  prior  to  the  time  of  such
                  application, setting forth in substance as follows:

                                    (1) the then fair  value,  in the opinion of
                           the signer,  of the  property  to be released  (which
                           fair value,  when taken  together with the fair value
                           of any other property theretofore released under this
                           Section  8.15,   as  set  forth  in  the   applicable
                           certificate  required pursuant to this  sub-paragraph
                           (1), shall not exceed $56,000,000); and

                                    (2)  that  such  release  will  not,  in the
                           opinion of the signer, impair the security under this
                           Indenture in contravention of the provisions hereof.

                                       13
<PAGE>

                           (D)  An   opinion  of   counsel   stating   that  the
                  instruments  that have been or are therewith  delivered to the
                  Trustee  conform to the  requirements  of this  Indenture  and
                  constitute  sufficient  authority under this Indenture for the
                  Trustee to execute and deliver the release requested, and that
                  the property may be released from the operation of the lien of
                  this  Indenture  pursuant to the  provisions  of this  Section
                  8.15.

                           (E) A  certificate  of the  Company and an opinion of
                  counsel as to compliance with conditions precedent.

                      (b) The  provisions of this Section 8.15 shall cease to be
              applicable  whenever the aggregate  principal amount of bonds then
              outstanding shall be less than $574,345,000."


                                   ARTICLE 4.

                             CHANGES TO ARTICLE 12.

         SECTION 4.01.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, anything in Article 12 of the Original Indenture to the
contrary notwithstanding,  consolidations,  mergers, conveyances,  transfers and
leases may  involve  any person  having  appropriate  authority  to carry on the
business or businesses in question and/or who is lawfully entitled to acquire or
lease and operate the mortgaged property.

         SECTION 4.02.  Effective upon surrender for cancellation to the Trustee
of all Consenting Bonds, Section 12.01 is changed by deleting therefrom in their
entirety the ultimate and the antepenultimate provisos thereto.


                                   ARTICLE 5.

                          RELEASE OF MORTGAGED PROPERTY
                    UPON CANCELLATION OF ALL CONSENTING BONDS

         SECTION 5.01.  Upon  surrender for  cancellation  to the Trustee of all
Consenting  Bonds,  unless a default as defined in Section  9.01 of the Original
Indenture  shall have occurred and be continuing,  the Trustee  shall,  whenever
from time to time  requested by the Company,  and without  requiring  compliance
with any of the  provisions of Section 8.03 of the Original  Indenture,  release
from the lien of the Indenture any or all of the mortgaged  property  other than
the  Palo  Verde  Property  (as  defined  in  Section  5.02 of this  Fifty-third
Supplemental Indenture); such release or releases to be made upon receipt by the
Trustee of:

                            (1) A written request of the Company for the release
                  of any  property,  either  describing  the same in  reasonable
                  detail or describing the same in sufficient  detail as may (in
                  the opinion of counsel) be  appropriate in order to effectuate
                  the release;

                            (2) A  certificate  of the Company  stating  that no
                  default as defined in Section 9.01 of the  Original  Indenture
                  has happened and is continuing;

                                       14
<PAGE>

                            (3) An independent engineer's certificate,  made and
                  dated not more than  sixty (60) days prior to the date of such
                  application,  stating that the signer has examined the written
                  request furnished to the Trustee;  stating as to such property
                  the then fair  value  thereof in the  opinion  of the  signer,
                  together with the signer's  report thereon which shall contain
                  a brief  statement of the  conditions  governing  the signer's
                  determination  of such  fair  value  and  stating  that in the
                  opinion  of the  signer  such  release  will  not  impair  the
                  security  under  this  Indenture  in   contravention   of  the
                  provisions  hereof;  and in case, as shown by said  engineer's
                  certificate, the consideration for the property to be released
                  includes additional property of a fair value to the Company of
                  not less than $25,000 and not less than one per centum (1%) of
                  the  aggregate  principal  amount  of the  bonds  at the  time
                  outstanding, and if such property has, within six months prior
                  to the date of acquisition  thereof by the Company,  been used
                  or operated by a person or persons other than the Company in a
                  business similar to that in which it has been or is to be used
                  or operated by the Company, a similar  independent  engineer's
                  certificate with respect to the then fair value to the Company
                  of such  additional  property  shall also be  furnished to the
                  Trustee;  provided,  however, in the event that the Securities
                  and Exchange Commission shall have ordered that the Company be
                  relieved of its  obligation  under section 314(d) of the Trust
                  Indenture  Act of 1939 to  deliver an  independent  engineer's
                  certificate as  contemplated  by said Act in connection with a
                  release  pursuant to this Section  5.01,  the Company need not
                  deliver an independent engineer's certificate pursuant to this
                  sub-paragraph   (3)  but  shall   instead   only  deliver  the
                  independent engineer's certificate referenced in sub-paragraph
                  (4) of this Section 5.01;

                            (4) if, as contemplated by sub-paragraph (3) of this
                  Section 5.01, the independent  engineer's  certificate in such
                  sub-paragraph need not be delivered, an independent engineer's
                  certificate,  made and dated not more than (60) days  prior to
                  the date of such  application,  stating  that the  signer  has
                  examined the written request to the Trustee; stating as to the
                  property  remaining subject to the lien of the Indenture after
                  giving  effect to the  release  or  releases  for  which  such
                  application  is being made, the then fair value thereof in the
                  opinion  of the  signer,  together  with the  signer's  report
                  thereon  which  shall   contain  a  brief   statement  of  the
                  conditions  governing the signer's  determination of such fair
                  value; and

                            (5) A  certificate  of the Company and an opinion of
                  counsel as to compliance with conditions precedent.

         SECTION  5.02.  "Palo  Verde  Property"  shall  mean (i) the PVNGS Land
located in  Maricopa  County,  Arizona  (the PVNGS Plant  Site,  the  Hassayampa
Pumping Station and Effluent Pipeline and Miscellaneous Real Property Interests)
previously  described  in the 33rd  Supplement  (recorded  January  11,  1988 as
Instrument  No.  88-011327),  but only to the extent of the Company's  undivided
ownership  interest  therein  (and  not  of  its  undivided  leasehold  interest
therein),  including equitable  ownership  (including the Company's interests in
ATI Title Agency of Arizona Trust No. 530 as described in the Fifteenth  Amended


                                       15
<PAGE>

Affidavit of Trustee Trust No. 530 described below),  and (ii) PVNGS and Related
Improvements previously described in the 33rd Supplement, but only to the extent
of the Company's  undivided  ownership  interest  therein (and not its undivided
leasehold interest  therein);  provided,  however,  that Palo Verde Property (1)
shall  not  include  the  transmission   facilities  and  oil  and  diesel  fuel
inventories  excluded from the 33rd  Supplement  pursuant to  exclusions  1.III,
1.IV,  2.III,  2.IV,  3.III and 3.IV under the  caption  "B.  PVNGS and  Related
Improvements" in the 33rd Supplement,  (2) shall include the Company's ownership
interests in Units 1 and 2 of PVNGS and common  facilities of PVNGS as described
in (i) Deed dated as of March 9, 1998 from State  Street Bank and Trust  Company
(successor to The First National Bank of Boston), a Massachusetts trust company,
in its capacity as Owner  Trustee (the "PV1  Trustee")  under that certain Trust
Agreement dated as of December 16, 1985 (as amended as of April 30 and September
2,  1992)  with the  Company  (assignee  of  Burnham  Leasing  Corporation,  the
beneficiary originally named in said Trust Agreement),  to the Company, recorded
on March 10, 1998 in the records of Maricopa  County,  Arizona as Instrument No.
98-0185678; (ii) Deed and Bill of Sale dated as of March 9, 1998 between the PV1
Trustee and the  Company,  recorded on March 10, 1998 in the Records of Maricopa
County,  Arizona as Instrument No.  98-0185679;  (iii) Deed dated as of March 9,
1998 from State Street Bank and Trust Company  (successor to The First  National
Bank of Boston), a Massachusetts trust company, in its capacity as Owner Trustee
(the "PV2 Trustee")  under that certain Trust  Agreement  dated as of August 12,
1986  (as  amended  as of April  30 and  September  2,  1992)  with the  Company
(assignee of Burnham Leasing  Corporation,  the beneficiary  originally named in
said Trust Agreement), to the Company, recorded on March 10, 1998 in the records
of Maricopa County, Arizona as Instrument No. 98-0185682;  (iv) Deed and Bill of
Sale dated as of March 9, 1998 between the PV2 Trustee and the Company, recorded
on March 10, 1998 in the Records of Maricopa  County,  Arizona as Instrument No.
98-0185683;  and (v) Fifteenth  Amended Affidavit of Trustee Trust No. 530 dated
March 10, 1998 of ATI Title Agency of Arizona, Inc., as Trustee of its Trust No.
530, as recorded on March 10, 1998 in the Records of Maricopa  County,  Arizona,
as Instrument No. 98-0185686 (the documents referenced in subclauses (i) through
(v)  of  this  clause  (2)  being  hereinafter  referred  to  as  the  "Transfer
Documents");  (3) shall not  include  the  Company's  9.6%  undivided  ownership
interest  in  the  ANPP  High  Voltage   Switchyard  (as  defined  in  the  33rd
Supplement),  and (4)  shall  not  include  the  Company's  undivided  ownership
interests in any other  transmission  facilities  located wholly or partially on
any of the real  property  constituting  the  PVNGS  Land  pursuant  to the 33rd
Supplement.

         SECTION 5.03. If any property  released from the Lien of this Indenture
as  provided  in Section  5.01 of this  Fifty-third  Supplemental  Indenture  or
otherwise in the Original Indenture (as changed by this Fifty-third Supplemental
Indenture)  shall  continue to be owned by the Company after such release,  this
Indenture  shall not become or be, or be  required  to become or be, a lien upon
such  property or any  improvement,  extension  or addition to such  property or
renewals,  replacements  or  substitutions  of or for any  part or parts of such
property  unless  the  Company  shall  execute  and  deliver  to the  Trustee an
indenture supplemental to the Indenture, in recordable form, containing a grant,
conveyance, transfer and mortgage thereof.

         SECTION 5.04.  Effective upon surrender for cancellation to the Trustee
of all Consenting  Bonds,  this Indenture shall not become or be, or be required
to become or be, a lien upon any  property  acquired  by the Company on or after
such  effectiveness  except that the lien of this  Indenture  shall  include any
improvement, extension or addition to any property not released from the lien of
this  Indenture  pursuant  to  Section  5.01  of this  Fifty-third  Supplemental
Indenture and any renewals,  replacements or substitutions of or for any part or
parts of such property.


                                       16
<PAGE>

         SECTION 5.05.  Effective upon surrender for cancellation to the Trustee
of all  Consenting  Bonds,  anything in the Original  Indenture  (as  heretofore
amended) to the  contrary  notwithstanding,  the Trustee  shall  forthwith,  and
without necessity for an application,  request, officers' certificate or opinion
of counsel  (except as may  otherwise be required by the Trust  Indenture Act of
1939, as amended),  release any and all trust moneys (as defined in Section 8.11
of the Original Indenture) then held by the Mortgage Trustee.



                                   ARTICLE 6.

                           CHANGES TO GRANTING CLAUSES


         SECTION 6.01. The Company confirms,  acknowledges and agrees that, upon
execution,  delivery and  recordation of the Transfer  Documents,  the Company's
right, title and interest in and to the property transferred,  assigned, granted
and  conveyed  by the  Transfer  Documents  became  subject  to the  lien of the
Indenture by virtue of the after-acquired property clauses thereof.

         SECTION 6.02.  Effective  upon (i) surrender  for  cancellation  to the
Trustee  of  all  Consenting  Bonds,  and  (ii)  the  execution,   delivery  and
recordation of the Transfer Documents,  all provisions of the Original Indenture
as heretofore  supplemented and amended  subjecting to the lien of the Indenture
after-acquired property (including,  but without limitation,  the full paragraph
on page 69 of the Original  Indenture and the first two paragraphs on page 70 of
the Original Indenture,  immediately  preceding the caption "Excepted Property")
are hereby deleted in their entirety and shall cease to have any force or effect
whatsoever,  subject,  however,  to the  provisions  of  Section  5.04  of  this
Fifty-third Supplemental Indenture.

                                   ARTICLE 7.

                                  THE TRUSTEE.

         The Trustee accepts the trusts created by this Fifty-third Supplemental
Indenture  upon the terms and  conditions in the Original  Indenture and in this
Fifty-third  Supplemental Indenture set forth. Each and every term and condition
contained  in  Article  13  of  the  Original  Indenture  shall  apply  to  this
Fifty-third Supplemental Indenture with the same force and effect as if the same
were herein set forth in full, with such omissions, variations and modifications
thereof  as may be  appropriate  to make the same  conform  to this  Fifty-third
Supplemental Indenture.

         The recitals  contained  herein shall be taken as the statements of the
Company,  and the Trustee assumes no  responsibility  for the correctness of the
same.

         To the extent  permitted  by Sections  13.02 and 13.03 of the  Original
Indenture,  and without  limitation of Section 13.06 of the Original  Indenture,
the Trustee may rely and shall be fully protected in acting upon any resolution,
certificate,  opinion, notice, request, consent, order, appraisal, report, bond,
or other  paper or  document  believed  by the Trustee to be genuine and to have
been signed or presented by the proper party or parties.


                                       17
<PAGE>


                                   ARTICLE 8.

                            MISCELLANEOUS PROVISIONS.

         SECTION 8.01. The Original  Indenture is in all respects,  ratified and
confirmed,  and the Original Indenture,  this Fifty-third Supplemental Indenture
and all other indentures  supplemental to the Original  Indenture shall be read,
taken and construed as one and the same  instrument.  Except as provided by this
Fifty-third  Supplemental  Indenture,  neither the execution of this Fifty-third
Supplemental  Indenture  nor  anything  herein  contained  shall be construed to
impair  the  lien of the  Original  Indenture,  as  supplemented,  on any of the
property subject thereto, and such lien shall remain in full force and effect as
security  for all  bonds  now  outstanding  under the  Original  Indenture,  the
Thirty-seventh Supplemental Indenture, the Thirty-eighth Supplemental Indenture,
the Thirty-ninth  Supplemental  Indenture,  the Fortieth Supplemental Indenture,
the Forty-fifth  Supplemental Indenture, the Forty-sixth Supplemental Indenture,
the  Forty-seventh   Supplemental  Indenture,   the  Forty-eighth   Supplemental
Indenture,  the Forty-ninth  Supplemental  Indenture,  the Fiftieth Supplemental
Indenture,   the  Fifty-first   Supplemental   Indenture  or  the   Fifty-second
Supplemental  Indenture.  Except as  provided by this  Fifty-third  Supplemental
Indenture, all covenants and provisions of the Original Indenture shall continue
in full force and effect, and this Fifty-third Supplemental Indenture shall form
part of the Original  Indenture.  All terms defined in Article 1 of the Original
Indenture, as amended, shall, for all purposes of this Fifty-third  Supplemental
Indenture,  have the meanings in said  Article 1  specified,  unless the context
otherwise requires.

         SECTION  8.02.   This   Fifty-third   Supplemental   Indenture  may  be
simultaneously executed in any number of counterparts, and all such counterparts
executed and delivered,  each as an original,  shall  constitute but one and the
same instrument.

         SECTION  8.03.  In  connection  with any release of mortgaged  property
effected under the provisions of the Original Indenture (as heretofore modified)
or the  Fifty-third  Supplemental  Indenture,  upon request of the Company,  the
Trustee  shall  execute  and  deliver  such  additional  releases,   termination
statements and other  instruments as shall be necessary or  appropriate,  in the
opinion of the Company,  to evidence the release of such mortgage  property from
the lien of the Indenture.



                                       18
<PAGE>



         IN WITNESS WHEREOF,  Public Service Company of New Mexico, party of the
first  part,  has caused its  corporate  name to be  hereunto  affixed  and this
instrument to be signed by its President or a Vice President or its Treasurer or
an  Assistant  Treasurer,  and its  corporate  seal to be  hereunto  affixed and
attested by its Secretary or an Assistant  Secretary for and in its behalf;  and
The Bank of New York, party of the second part, in evidence of its acceptance of
the trust hereby created,  has caused its corporate name to be hereunto affixed,
and this  instrument  to be signed by its  President  or a Vice  President or an
Assistant  Vice  President  and its  corporate  seal to be hereunto  affixed and
attested by one of its Assistant  Secretaries or Assistant Treasurers for and in
its behalf, all as of the day and year first above written.

                                   PUBLIC SERVICE COMPANY OF
                                   NEW MEXICO


                                   By
                                      --------------------------------
                                      Name:
                                      Title:

Attest:


- -------------------------
Secretary

(Corporate Seal)
                                   THE BANK OF NEW YORK,
                                   as Trustee


                                   By
                                      --------------------------------
                                        Van K. Brown
                                        Assistant Vice President

Attest:


- -------------------------
Assistant Treasurer

(Corporate Seal)



                                       19
<PAGE>

STATE OF NEW YORK  )
                   ) ss:
COUNTY OF NEW YORK )

         On this 11th day of March, 1998, before me appeared Van K. Brown, to me
personally  known, who, being by me duly sworn, did depose and say that he is an
Assistant  Vice  President of THE BANK OF NEW YORK, and that the seal affixed to
said  instrument  is the  corporate  seal of said  corporation,  and  that  said
instrument  was signed and sealed in behalf of said  corporation by authority of
its Board of Directors, and said Van K. Brown acknowledged said instrument to be
the free act and deed of said corporation.



                                             -------------------------------
                                                      Notary Public








(Notarial Seal)



STATE OF NEW YORK   )
                    ) ss:
COUNTY OF NEW YORK  )

         This instrument was acknowledged before me on March 11, 1998, by Van K.
Brown as an Assistant Vice President of THE BANK OF NEW YORK.




                                             -------------------------------
                                                      Notary Public

<PAGE>


                                                                         ANNEX A
                                                                  to Fifty-third
                                                          Supplemental Indenture

  I.     NONUTILITY PROPERTY

         A.  E.W.B.U (ELECTRIC)

                LAND: JOHN STREET SUB SITE
                LAND: MONROE SUB SITE
                LAND: RIBBLE WATER RIGHTS
                LAND: PERSON STATION-SCHWARTZMAN

         B.  G.C.N.M (GAS)

                LAND IN BELEN (LOT)

         C.  ENERGY SERVICES:

                L.V. ASYLUM PROPERTY (LAND)
                HAGGERMAN LAND & FENCE
                SANTA FE PUMP STATION SITE: COLLEGE ST.
                SANTA FE PUMP STATION SITE: OLD DEMPSEY
                SANTA FE TWO MILE RESERVOIR SITE TRACTS
                SANTA FE FILTER PLANT SITE 72 ACRES
                CORPORATE-ALLOCATED UTILITY PLANT
                LAND: PINO LA CIENAGE-WATER RIGHTS
                LAND: HAGGERMAN-WATER RIGHTS
                ENERGY SERVICE-G/L ONLY
                WATER SERVICES PROPERTY-G/L ONLY

         D.  CORPORATE;

                LAND: HQ
                LAND:AS
                LEASED FLOOR: HQ
                LEASED FLOOR: AS(FBI)


  II. PLANT HELD FOR FUTURE USE

         F.  E.W.B.U (ELECTRIC):

                LAND: NORTH ALBUQUERQUE ACRES
                LAND: RIO RANCHO ENCHANTED HILLS SUB.
                LAND: SANTA FE OLD SERVICE CENTER
                LAND: PRAGER STATION
                LAND: PERSON STATION


63028791.15                                                   Document No. 503




- --------------------------------------------------------------------------------


                      PUBLIC SERVICE COMPANY OF NEW MEXICO

                                       to

                            THE CHASE MANHATTAN BANK

                                     Trustee



                                 --------------


                                    INDENTURE

                           Dated as of March 11, 1998


                                 --------------


- --------------------------------------------------------------------------------

                               (For Senior Notes)








63035864.02

<PAGE>


                                TABLE OF CONTENTS

                                                                         Page
                                                                         ----

                                    ARTICLE I

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

   Section 1.01    Definitions.............................................1
   "Act,"            ......................................................2
   "Affiliate"       ......................................................2
   "Authenticating Agent...................................................2
   "Board of Directors.....................................................2
   "Board Resolution ......................................................2
   "Business Day,"   ......................................................2
   "Capitalization"  ......................................................2
   "Commission"      ......................................................2
   "Company"         ......................................................3
   "Company Request  ......................................................3
   "Corporate Trust Office.................................................3
   "Corporation"     ......................................................3
   "Covenant Defeasance....................................................3
   "Debt"            ......................................................3
   "Defaulted Interest.....................................................3
   "Defeasance"      ......................................................3
   "Depositary"      ......................................................3
   "Event of Default ......................................................3
   "Exchange Act"    ......................................................3
   "Expiration Date  ......................................................3
   "Global Note"     ......................................................3
   "Holder"          ......................................................3
   "Indenture"       ......................................................3
   "independent,"    ......................................................4
   "interest,"       ......................................................4
   "Interest Payment Date..................................................4
   "Investment Company Act.................................................4
   "Maturity,"       ......................................................4
   "Net Tangible Assets....................................................4
   "Notes"           ......................................................4
   "Note Register"   ......................................................4
   "Notice of Default......................................................4
   "Officers' Certificate..................................................4
   "Operating Property.....................................................5
   "Opinion of Counsel.....................................................5
   "Original Issue Discount Note...........................................5
   "Outstanding,"    ......................................................5
   "Paying Agent"    ......................................................6
   "Person"          ......................................................6
   "Place of Payment ......................................................6

<PAGE>


   "Predecessor Note ......................................................6
   "Redemption Date  ......................................................6
   "Redemption Price ......................................................6
   "Regular Record Date....................................................6
   "Responsible Officer....................................................6
   "Sale and Lease-Back Transaction........................................6
   "Securities Act"  ......................................................7
   "Special Record Date....................................................7
   "Stated Maturity  ......................................................7
   "Subsidiary"      ......................................................7
   "Trust Indenture Act....................................................7
   "Trustee"         ......................................................7
   "U.S. Government Obligation.............................................7
   "Value"           ......................................................7
   "Vice President   ......................................................7
   Section 1.02    Compliance Certificates and Opinions....................8
   Section 1.03    Form of Documents Delivered to Trustee..................8
   Section 1.04    Acts of Holders; Record Dates...........................9
   Section 1.05    Notices, Etc., to Trustee and Company..................11
   Section 1.06    Notice to Holders; Waiver..............................12
   Section 1.07    Conflict with Trust Indenture Act......................12
   Section 1.08    Effect of Headings and Table of Contents...............13
   Section 1.09    Successors and Assigns.................................13
   Section 1.10    Separability Clause....................................13
   Section 1.11    Benefits of Indenture..................................13
   Section 1.12    Governing Law..........................................13
   Section 1.13    Legal Holidays.........................................13

                                   ARTICLE II

                                   NOTE FORMS

   Section 2.01    Forms Generally........................................14
   Section 2.02    Form of Face of Note...................................14
   Section 2.03    Form of Reverse of Note................................16
   Section 2.04    Form of Legend for Global Notes........................20
   Section 2.05    Form of Trustee's Certificate of Authentication........20

                                   ARTICLE III

                                    THE NOTES

   Section 3.01    Amount Unlimited; Issuable in Series...................21
   Section 3.02    Denominations..........................................23
   Section 3.03    Execution, Authentication, Delivery and Dating.........24
   Section 3.04    Temporary Notes........................................25
   Section 3.05    Registration, Registration of Transfer and Exchange....26
   Section 3.06    Mutilated, Destroyed, Lost and Stolen Notes............27
   Section 3.07    Payment of Interest; Interest Rights Preserved.........28
   Section 3.08    Persons Deemed Owners..................................29
   Section 3.09    Cancellation...........................................29

<PAGE>

   Section 3.10    Computation of Interest................................30
   Section 3.11    CUSIP Numbers..........................................30

                                   ARTICLE IV

                           SATISFACTION AND DISCHARGE

   Section 4.01    Satisfaction and Discharge of Indenture................30
   Section 4.02    Application of Trust Money.............................31

                                    ARTICLE V

                                    REMEDIES

   Section 5.01    Events of Default......................................32
   Section 5.02    Acceleration of Maturity; Rescission and Annulment.....33
   Section 5.03    Collection of Indebtedness and Suits for 
                   Enforcement by Trustee.................................34
   Section 5.04    Trustee May File Proofs of Claim.......................34
   Section 5.05    Trustee May Enforce Claims Without Possession of
                   Notes..................................................35
   Section 5.06    Application of Money Collected.........................35
   Section 5.07    Limitation on Suits....................................36
   Section 5.08    Unconditional Right of Holders to Receive Principal,
                   Premium and Interest...................................36
   Section 5.09    Restoration of Rights and Remedies.....................37
   Section 5.10    Rights and Remedies Cumulative.........................37
   Section 5.11    Delay or Omission Not Waiver...........................37
   Section 5.12    Control by Holders.....................................37
   Section 5.13    Waiver of Past Defaults................................38
   Section 5.14    Undertaking for Costs..................................38
   Section 5.15    Waiver of Stay or Extension Laws.......................39

                                   ARTICLE VI

                                   THE TRUSTEE

   Section 6.01    Certain Duties and Responsibilities....................39
   Section 6.02    Notice of Defaults.....................................40
   Section 6.03    Certain Rights of Trustee..............................40
   Section 6.04    Not Responsible for Recitals or Issuance of Notes......41
   Section 6.05    May Hold Notes.........................................42
   Section 6.06    Money Held in Trust....................................42
   Section 6.07    Compensation and Reimbursement.........................42
   Section 6.08    Conflicting Interests..................................43
   Section 6.09    Corporate Trustee Required; Eligibility................43
   Section 6.10    Resignation and Removal; Appointment of Successor......43
   Section 6.11    Acceptance of Appointment by Successor.................45
   Section 6.12    Merger, Conversion, Consolidation or Succession
                   to Business............................................46
   Section 6.13    Preferential Collection of Claims Against Company......46
   Section 6.14    Appointment of Authenticating Agent....................47

<PAGE>

                                   ARTICLE VII

                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

   Section 7.01    Company to Furnish Trustee Names and Addresses 
                   of Holders............................................49
   Section 7.02    Preservation of Information; Communications
                   to Holders............................................49
   Section 7.03    Reports by Trustee....................................49
   Section 7.04    Reports by Company....................................50

                                  ARTICLE VIII

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

   Section 8.01    Company May Consolidate, Etc., Only on Certain
                   Terms.................................................50
   Section 8.02    Successor Substituted.................................51

                                   ARTICLE IX

                             SUPPLEMENTAL INDENTURES

   Section 9.01    Supplemental Indentures Without Consent of Holders....51
   Section 9.02    Supplemental Indentures With Consent of Holders.......53
   Section 9.03    Execution of Supplemental Indentures..................54
   Section 9.04    Effect of Supplemental Indentures.....................54
   Section 9.05    Conformity with Trust Indenture Act...................54
   Section 9.06    Reference in Notes to Supplemental Indentures.........54

                                    ARTICLE X

                                    COVENANTS

   Section 10.01   Payment of Principal, Premium and Interest............55
   Section 10.02   Maintenance of Office or Agency.......................55
   Section 10.03   Money for Notes Payments to Be Held in Trust..........55
   Section 10.04   Statement by Officers as to Default...................56
   Section 10.05   Restrictions on Liens.................................56
   Section 10.06   Corporate Existence...................................58
   Section 10.07   Maintenance of Properties.............................58
   Section 10.08   Waiver of Certain Covenants...........................59
   Section 10.09   Calculation of Original Issue Discount................59
   Section 10.10   Restrictions on Sale and Lease-Back Transactions......59

     ARTICLE XI

 REDEMPTION OF NOTES

   Section 11.01   Applicability of Article..............................60
   Section 11.02   Election to Redeem; Notice to Trustee.................60
   Section 11.03   Selection by Trustee of Notes to be Redeemed..........60
   Section 11.04   Notice of Redemption..................................61
   Section 11.05   Deposit of Redemption Price...........................62
   Section 11.06   Notes Payable on Redemption Date......................62
   Section 11.07   Notes Redeemed in Part................................62

<PAGE>

                                   ARTICLE XII

                                  SINKING FUNDS

   Section 12.01   Applicability of Article..............................63
   Section 12.02   Satisfaction of Sinking Fund Payments with Notes......63
   Section 12.03   Redemption of Notes for Sinking Fund..................63

                                  ARTICLE XIII

                       DEFEASANCE AND COVENANT DEFEASANCE

   Section 13.01   Company's Option to Effect Defeasance or Covenant
                   Defeasance............................................64
   Section 13.02   Defeasance and Discharge..............................64
   Section 13.03   Covenant Defeasance...................................64
   Section 13.04   Conditions to Defeasance or Covenant Defeasance.......65
   Section 13.05   Deposited Money and U.S. Government Obligations 
                   to Be Held in Trust; Miscellaneous Provisions.........67
   Section 13.06   Reinstatement.........................................67

                                   ARTICLE XIV

                   Meetings of Holders; Action Without Meeting

   Section 14.01   Purposes for Which Meetings May Be Called.............67
   Section 14.02   Call, Notice and Place of Meetings....................68
   Section 14.03   Persons Entitled to Vote at Meetings..................68
   Section 14.04   Quorum: Action........................................68
   Section 14.05   Attendance at Meetings; Determination of Voting 
                   Rights; Conduct and Adjournment of Meetings...........69
   Section 14.06   Counting Votes and Recording Action of Meetings.......70
   Section 14.07   Action Without Meeting................................71

                                   ARTICLE XV

         Immunity of INCORPORATORS, Stockholders, Officers and Directors

   Section 15.01   Liability Solely Corporate............................71

TESTIMONIUM


SIGNATURES AND SEALS


ACKNOWLEDGMENTS


<PAGE>

                  INDENTURE  dated as of March 11, 1998 between  PUBLIC  SERVICE
COMPANY OF NEW MEXICO,  a corporation duly organized and existing under the laws
of the State of New Mexico (herein called the  "Company"),  having its principal
office  at  Alvarado  Square,  Albuquerque,  New  Mexico  87158,  and THE  CHASE
MANHATTAN  BANK, a New York banking  corporation,  as Trustee (herein called the
"Trustee").

                             RECITALS OF THE COMPANY

                  The Company has duly  authorized the execution and delivery of
this Indenture to provide for the issuance from time to time of its senior notes
(herein  called  the  "Notes"),  to be issued  in one or more  series as in this
Indenture provided.

                  All things  necessary to make this Indenture a valid agreement
of the Company, in accordance with its terms, have been done.

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                  For and in  consideration  of the premises and the purchase of
the Notes by the Holders thereof,  it is mutually covenanted and agreed, for the
equal  and  proportionate  benefit  of all  Holders  of the  Notes or of  series
thereof, as follows:


                                    ARTICLE I

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

         Section 1.01      Definitions.

                  For  all  purposes  of this  Indenture,  except  as  otherwise
expressly provided or unless the context otherwise requires:

                  (1) the  terms  defined  in this  Article  have  the  meanings
assigned to them in this Article and include the plural as well as the singular;

                  (2) all other terms used herein which are defined in the Trust
Indenture  Act,  either  directly or by  reference  therein,  have the  meanings
assigned to them therein;

                  (3) all accounting terms not otherwise defined herein have the
meanings  assigned to them in  accordance  with  generally  accepted  accounting
principles,  and,  except  as  otherwise  herein  expressly  provided,  the term
"generally  accepted  accounting  principles"  with  respect to any  computation
required or permitted  hereunder  shall mean such  accounting  principles as are
generally accepted in the United States of America;

                  (4) unless the context otherwise requires, any reference to an
"Article" or a "Section" refers to an Article or a Section,  as the case may be,
of this Indenture; and

<PAGE>

                  (5) the words  "herein",  "hereof" and  "hereunder"  and other
words of  similar  import  refer  to this  Indenture  as a whole  and not to any
particular Article, Section or other subdivision.

         "Act," when used with respect to any Holder,  has the meaning specified
in Section 1.04.

         "Affiliate" of any specified  Person means any other Person directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control"  when used with  respect to any  specified  Person  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.


         "Authenticating  Agent"  means any  Person  authorized  by the  Trustee
pursuant to Section 6.14 to act on behalf of the Trustee to  authenticate  Notes
of one or more series.


         "Board of Directors" means either the board of directors of the Company
or any duly authorized committee of that board.


         "Board  Resolution"  means  a copy  of a  resolution  certified  by the
Secretary  or an Assistant  Secretary  or Associate  Secretary of the Company to
have been duly  adopted  by the Board of  Directors  and to be in full force and
effect on the date of such certification, and delivered to the Trustee.


         "Business  Day," when used with respect to any Place of Payment,  means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking  institutions  in that Place of Payment are  authorized  or obligated by
law,  regulation  or  executive  order  to  close,  except  as may be  otherwise
specified for any series of the Notes, as contemplated by Section 3.01.


         "Capitalization"  means the total of all the following  items appearing
on,  or  included  in,  the  consolidated  balance  sheet  of the  Company:  (i)
liabilities for indebtedness maturing more than twelve (12) months from the date
of  determination;  and (ii) common stock,  preferred stock,  premium on capital
stock,  capital surplus,  capital in excess of par value, and retained  earnings
(however the  foregoing  may be  designated),  less, to the extent not otherwise
deducted,  the  cost of  shares  of  capital  stock of the  Company  held in its
treasury.  Subject  to the  foregoing,  Capitalization  shall be  determined  in
accordance  with  generally   accepted   accounting   principles  and  practices
applicable  to the type of business in which the Company is engaged and that are
approved by independent  accountants  regularly retained by the Company, and may
be  determined as of a date not more than (sixty) 60 days prior to the happening
of an event for which such determination is being made.


         "Commissiion" means the Securities and Exchange  Commission,  from time
to time  constituted,  created  under the Exchange Act, or, if at any time after
the execution of this  instrument such Commission is not existing and performing
the duties  now  assigned  to it under the Trust  Indenture  Act,  then the body
performing such duties at such time.

                                       2
<PAGE>


         "Company"  means  the  Person  named  as the  "Company"  in  the  first
paragraph  of this  instrument  until a successor  Person shall have become such
pursuant to the  applicable  provisions  of this  Indenture,  and  thereafter  "
Company" shall mean such successor Person.


         "Company or "Company  Order" means a written request or order signed in
the name of the Company by its Chairman of the Board,  its Vice  Chairman of the
Board,  its President or a Vice  President,  and by its Treasurer,  an Assistant
Treasurer,  its  Secretary  or an  Assistant  Secretary,  and  delivered  to the
Trustee.


         "Corporate Trust Office" means the office of the Trustee in The City of
New York, at which at any particular  time its corporate trust business shall be
principally administered, which office at the date hereof is located at 450 West
33rd Street - 15th Floor, New York, New York 10001.


         "Corporation" means a corporation,  association,  company,  joint-stock
company or business trust.


         "Covenant Defeasance" has the meaning specified in Section 13.03.


         "Debt"  means any  outstanding  debt for money  borrowed  evidenced  by
notes, debentures, bonds, or other securities.


         "Defaulted Interest" has the meaning specified in Section 3.07.


         "Defeasance" has the meaning specified in Section 13.02.


         "Depositary"  means,  with  respect to Notes of any series  issuable in
whole or in part in the form of one or more  Global  Notes,  a  clearing  agency
registered  under the Exchange Act that is designated  to act as Depositary  for
such Notes as contemplated by Section 3.01.


         "Event of Fault" has the meaning specified in Section 5.01.


         "Exchange  Act"  means  the  Securities  Exchange  Act of 1934  and any
statute successor thereto, in each case as amended from time to time.


         "Expiration Date" has the meaning specified in Section 1.04.


         "Global  Note" means a Note that  evidences all or part of the Notes of
any series and bears the legend set forth in or contemplated by Section 2.04 (or
such legend as may be specified as contemplated by Section 3.01 for such Notes).

         "Holder"  means a Person in whose name a Note is registered in the Note
Register.

         "Indenture" means this instrument as originally  executed and as it may
from  time  to  time  be  supplemented  or  amended  by one or  more  indentures
supplemental  hereto entered into pursuant to the applicable  provisions hereof,
including,  for all  purposes  of this  instrument  and  any  such  supplemental
indenture,  the  provisions  of the Trust  Indenture Act that are deemed to be a
part  of and  govern  this  instrument  and  any  such  supplemental  indenture,
respectively.  The term  "Indenture"  shall also include the terms of particular
series of Notes established as contemplated by Section 3.01.

                                       3
<PAGE>

         "independent,"  when applied to any accountant shall mean such a Person
who is in fact independent,  selected by the Company and approved by the Trustee
in the exercise of reasonable care.


         "interest" when used with respect to an Original  Issue  Discount  Note
which by its terms bears interest only after  Maturity,  means interest  payable
after Maturity.

         "Interest  Payment Date," when used with respect to any Note, means the
Stated Maturity of an installment of interest on such Note.

         "Investment  Company Act" means the Investment  Company Act of 1940 and
any statute successor thereto, in each case as amended from time to time.

         "Maturity," when used with respect to any Note, means the date on which
the  principal  of such Note or an  installment  of  principal  becomes  due and
payable as  therein or herein  provided,  whether at the Stated  Maturity  or by
declaration of acceleration, call for redemption or otherwise.

         "Net  Tangible  Assets"  means the amount  shown as total assets on the
consolidated  balance sheet of the Company,  less the following:  (i) intangible
assets including,  but without limitation,  such items as goodwill,  trademarks,
trade  names,  patents,  and  unamortized  debt  discount  and expense and other
regulatory  assets  carried as an asset on the  Company's  consolidated  balance
sheet;  and  (ii)  appropriate  adjustments,  if any,  on  account  of  minority
interests.  Net Tangible Assets shall be determined in accordance with generally
accepted accounting  principles and practices applicable to the type of business
in which  the  Company  is  engaged  and that are  approved  by the  independent
accountants  regularly  retained by the Company,  and may be  determined as of a
date not more than sixty (60) days prior to the happening of the event for which
such determination is being made.

         "Notes" has the meaning  stated in the first recital of this  Indenture
and more  particularly  means any Notes  authenticated  and delivered under this
Indenture.

         "Note  Register"  and "Note  Registrar"  have the  respective  meanings
specified in Section 3.05.


         "Notice of Default"  means a written  notice of the kind  specified  in
Section 5.01(4).

         "Officers'  Certificate"  means a certificate signed by the Chairman of
the Board, a Vice Chairman of the Board, the President or a Vice President,  and
by the Treasurer,  an Assistant Treasurer,  the Controller,  the Secretary or an
Assistant  Secretary,  of the Company,  and delivered to the Trustee;  provided,
that an Assistant Treasurer or Assistant Secretary need not be an officer of the
Company under the  Company's  Bylaws.  One of the officers  signing an Officers'
Certificate  given  pursuant to Section 10.04 shall be the principal  executive,
financial or accounting officer of the Company.


                                       4
<PAGE>


         "Operating  Property"  means (i) any interest in real property owned by
the  Company  and (ii) any asset owned by the  Company  that is  depreciable  in
accordance with generally accepted accounting principles.

         "Opinion of  Counsel"  means a written  opinion of counsel,  who may be
counsel  for the  Company,  or other  counsel  who  shall be  acceptable  to the
Trustee.

         "Original  Issue  Discount  Note" means any Note which  provides for an
amount  less than the  principal  amount  thereof to be due and  payable  upon a
declaration of acceleration of the Maturity thereof pursuant to Section 5.02.

         "Outstanding,"  when used with respect to Notes,  means, as of the date
of determination,  all Notes theretofore  authenticated and delivered under this
Indenture, except:

                  (1) Notes theretofore cancelled by the Trustee or delivered to
         the Trustee for cancellation;

                  (2)  Notes  for  whose  payment  or  redemption  money  in the
         necessary amount has been theretofore deposited with the Trustee or any
         Paying  Agent  (other  than the  Company)  in trust  or set  aside  and
         segregated in trust by the Company (if the Company shall act as its own
         Paying  Agent) for the Holders of such Notes;  provided  that,  if such
         Notes are to be redeemed, notice of such redemption has been duly given
         pursuant to this Indenture or provision  therefor  satisfactory  to the
         Trustee has been made;

                  (3) Notes as to which Defeasance has been effected pursuant to
         Section 13.02; and

                  (4) Notes which have been paid  pursuant to Section 3.06 or in
         exchange  for or in lieu of which other  Notes have been  authenticated
         and delivered pursuant to this Indenture,  other than any such Notes in
         respect of which there shall have been  presented to the Trustee  proof
         satisfactory to it that such Notes are held by a bona fide purchaser in
         whose hands such Notes are valid obligations of the Company;

provided,  however,  that  in  determining  whether  or not the  Holders  of the
requisite  principal amount of the Outstanding  Notes have given,  made or taken
any request, demand, authorization,  direction, notice, consent, waiver or other
action  hereunder  as of any date or  whether  or not a quorum is  present  at a
meeting of Holders,  (A) the principal amount of an Original Issue Discount Note
which  shall be deemed to be  Outstanding  shall be the amount of the  principal
thereof which would be due and payable as of such date upon  acceleration of the
Maturity thereof to such date pursuant to Section 5.02, (B) if, as of such date,
the  principal  amount  payable  at  the  Stated  Maturity  of  a  Note  is  not
determinable,  the  principal  amount of such Note  which  shall be deemed to be
Outstanding  shall be the amount as specified or determined as  contemplated  by
Section 3.01,  (C) the  principal  amount of a Note  denominated  in one or more
foreign  currencies  or currency  units which shall be deemed to be  Outstanding
shall be the U.S.  dollar  equivalent,  determined as of such date in the manner
provided as contemplated  by Section 3.01, of the principal  amount of such Note
(or, in the case of a Note  described in Clause (A) or (B) above,  of the amount
determined  as provided in such  Clause),  and (D) Notes owned by the Company or
any other  obligor  upon the Notes or any  Affiliate  of the  Company or of such
other  obligor shall be  disregarded  and deemed not to be  Outstanding,  except
that, in determining  whether the Trustee shall be protected in relying upon any
such request, demand, authorization, direction, notice, consent, waiver or other
action,  or upon such  determination as to the presence of a quorum,  only Notes
which the Trustee  actually knows to be so owned shall be so disregarded.  Notes
so owned which have been pledged in good faith may be regarded as Outstanding if
the pledgee  establishes to the  satisfaction of the Trustee the pledgee's right
so to act with  respect to such Notes and that the pledgee is not the Company or
any other  obligor  upon the Notes or any  Affiliate  of the  Company or of such
other obligor.

                                       5
<PAGE>


         "Paying  Agent" means any Person  authorized  by the Company to pay the
principal of or any premium or interest on any Notes on behalf of the Company.


         "Person" means any individual, corporation, partnership, joint venture,
trust, unincorporated organization or government or any agency,  instrumentality
or political subdivision thereof.


         "Place of Payment,"  when used with respect to the Notes of any series,
means the place or places where the principal of and any premium and interest on
the Notes of that series are payable as  specified  as  contemplated  by Section
3.01.

         "Predecessor  Note" of any  particular  Note means every  previous Note
evidencing  all or a  portion  of the  same  debt  as  that  evidenced  by  such
particular   Note;  and,  for  the  purposes  of  this   definition,   any  Note
authenticated  and delivered  under Section 3.06 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen Note shall be deemed to evidence the same
debt as the mutilated, destroyed, lost or stolen Note.

         "Redemption  Date," when used with  respect to any Note to be redeemed,
means the date fixed for such redemption by or pursuant to this Indenture.

         "Redemption  Price," when used with respect to any Note to be redeemed,
means the price at which it is to be redeemed pursuant to this Indenture.

         "Regular Record Date" for the interest  payable on any Interest Payment
Date on the Notes of any series  means the date  specified  for that  purpose as
contemplated by Section 3.01.

         "Responsible Officer," when used with respect to the Trustee, means any
officer of the Trustee assigned by the Trustee to administer its corporate trust
matters.

         "Sale and Lease-Bank  Traction" means any  arrangement  with any Person
providing for the leasing to the Company of any Operating  Property  (except for
temporary  leases for a term,  including any renewal  thereof,  of not more than
forty-eight (48) months),  which Operating Property has been or is to be sold or
transferred  by  the  Company  to  such  Person;  provided,  however,  Sale  and
Lease-back  Transaction shall not include any arrangement (i) first entered into
prior to the date specified in the first  paragraph of this  instrument and (ii)
involving the exchange of any Operating  Property for any property subject to an
arrangement specified in the preceding clause (i).

                                       6
<PAGE>


         "Securities  Act"  means  the  Securities  Act of 1933 and any  statute
successor thereto, in each case as amended from time to time.

         "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 3.07.

         "Stated   Maturity,"  when  used  with  respect  to  any  Note  or  any
installment of principal thereof or interest  thereon,  means the date specified
in such  Note as the  fixed  date on which  the  principal  of such Note or such
installment of principal or interest is due and payable.

         "Subsidiary"  means a  corporation  more  than  50% of the  outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or  more  other  Subsidiaries,   or  by  the  Company  and  one  or  more  other
Subsidiaries.  For the purposes of this  definition,  "voting stock" means stock
which ordinarily has voting power for the election of directors,  whether at all
times  or only so long as no  senior  class of stock  has such  voting  power by
reason of any contingency.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed; provided, however, that in
the event the Trust  Indenture  Act of 1939 is amended  after such date,  "Trust
Indenture Act" means, to the extent  required by any such  amendment,  the Trust
Indenture Act of 1939 as so amended.

         "Trustee"  means  the  Person  named  as the  "Trustee"  in  the  first
paragraph of this  instrument  until a successor  Trustee shall have become such
with  respect  to one  or  more  series  of  Notes  pursuant  to the  applicable
provisions of this  Indenture,  and thereafter  "Trustee"  shall mean or include
each  Person who is then a Trustee  hereunder,  and if at any time there is more
than one such Person,  "Trustee" as used with respect to the Notes of any series
shall mean the Trustee with respect to Notes of that series.

         "U.S. Government Obligation" has the meaning specified in Section
          13.04.

         "Value" means, with respect to a Sale and Lease-Back Transaction, as of
any particular  time, the amount equal to the greater of (1) the net proceeds to
the Company  from the sale or transfer of the property  leased  pursuant to such
Sale and Lease-Back  Transaction or (2) the net book value of such property,  as
determined in accordance with generally  accepted  accounting  principles by the
Company at the time of entering into such Sale and  Lease-Back  Transaction,  in
either case  multiplied by a fraction,  the numerator of which shall be equal to
the  number of full years of the term of the lease that is part of such Sale and
Lease-Back   Transaction   remaining  at  the  time  of  determination  and  the
denominator  of which  shall be equal to the  number of full years of such term,
without regard,  in any case, to any renewal or extension  options  contained in
such lease.

         "Vice President," when used with respect to the Company or the Trustee,
means any vice  president,  whether or not  designated  by a number or a word or
words added before or after the title "vice president".


                                       7
<PAGE>

         Section 1.02      Compliance Certificates and Opinions.

                  Upon any  application or request by the Company to the Trustee
to take any action under any  provision  of this  Indenture,  the Company  shall
furnish to the Trustee such  certificates  and opinions as may be required under
the Trust Indenture Act. Each such  certificate or opinion shall be given in the
form of an Officers'  Certificate,  if to be given by an officer or an Assistant
Treasurer or Assistant Secretary of the Company, or an Opinion of Counsel, if to
be given by  counsel,  and  shall  comply  with the  requirements  of the  Trust
Indenture Act and any other requirements set forth in this Indenture.

                  Every certificate (other than certificates pursuant to Section
314(a)(4) of the Trust Indenture Act) or opinion with respect to compliance with
a condition or covenant provided for in this Indenture shall include,

                  (1) a statement that each individual  signing such certificate
or opinion  has read such  covenant  or  condition  and the  definitions  herein
relating thereto;

                  (2) a  brief  statement  as to the  nature  and  scope  of the
examination or investigation  upon which the statements or opinions contained in
such certificate or opinion are based;

                  (3) a statement that, in the opinion of each such  individual,
he or she has made such  examination or  investigation as is necessary to enable
him or her to express an informed  opinion as to whether or not such covenant or
condition has been complied with; and

                  (4) a  statement  as to  whether,  in the opinion of each such
individual, such condition or covenant has been complied with.

         Section 1.03      Form of Documents Delivered to Trustee.

                  In any case where several matters are required to be certified
by, or covered by an opinion of, any specified  Person, it is not necessary that
all such  matters be  certified  by, or covered by the opinion of, only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such Persons as to other matters,  and any such Person may certify
or give an opinion as to such matters in one or several documents.

                  Any certificate or opinion of an officer of the Company may be
based, insofar as it relates to legal matters, upon a certificate or opinion of,
or representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or  representations
with respect to the matters upon which his  certificate  or opinion is based are
erroneous.  Any such certificate or opinion of counsel may be based,  insofar as
it  relates  to  factual   matters,   upon  a  certificate  or  opinion  of,  or
representations  by, an  officer or  officers  of the  Company  or an  Assistant
Treasurer or Assistant  Secretary of the Company,  stating that the  information
with respect to such factual matters is in the possession of the Company, unless
such counsel knows,  or in the exercise of reasonable care should know, that the
certificate  or opinion or  representations  with  respect to such  matters  are
erroneous.


                                       8
<PAGE>

                  Where any Person is required  to make,  give or execute two or
more applications,  requests, consents,  certificates,  statements,  opinions or
other instruments under this Indenture,  they may, but need not, be consolidated
and form one instrument.

                  Whenever,  subsequent  to the  receipt  by the  Trustee of any
Board Resolution, Officers' Certificate, Opinion of Counsel or other document or
instrument,  a clerical,  typographical  or other  inadvertent or  unintentional
error or omission shall be discovered  therein, a new document or instrument may
be  substituted  therefor in corrected form with the same force and effect as if
originally filed in the corrected form and, irrespective of the date or dates of
the actual  execution  and/or  delivery  thereof,  such  substitute  document or
instrument shall be deemed to have been executed and/or delivered as of the date
or dates  required  with respect to the document or  instrument  for which it is
substituted. Anything in this Indenture to the contrary notwithstanding,  if any
such corrective  document or instrument  indicates that action has been taken by
or at the  request  of the  Company  which  could  not have  been  taken had the
original document or instrument not contained such error or omission, the action
so taken shall not be invalidated or otherwise rendered ineffective but shall be
and remain in full force and effect, except to the extent that such action was a
result or willful  misconduct or bad faith.  Without  limiting the generality of
the foregoing,  any Notes issues under the authority of such defective  document
or  instrument  shall  nevertheless  be the  valid  obligations  of the  Company
entitled to the  benefits of this  Indenture  equally and ratably with all other
Outstanding Notes, except as aforesaid.

         Section 1.04      Acts of Holders; Record Dates.

                  Any  request,  demand,   authorization,   direction,   notice,
consent,  waiver or other action  provided or permitted by this  Indenture to be
given,  made or taken by Holders may be embodied in and evidenced by one or more
instruments of  substantially  similar tenor signed by such Holders in person or
by an agent duly appointed in writing; or, alternatively, may be embodied in and
evidenced by the record of Holders voting in favor thereof,  either in person or
by proxies duly appointed in writing,  at any meeting of Holders duly called and
held in accordance with the provisions of Article Fourteen,  or a combination of
such  instruments  and any such  record.  Except as herein  otherwise  expressly
provided, such action shall become effective when such instrument or instruments
of record  are  delivered  to the  Trustee  and,  where it is  hereby  expressly
required,  to the Company.  Such  instrument or instruments  and any such record
(and the action  embodied  therein and evidenced  thereby) are herein  sometimes
referred to as the "Act" of the Holders  signing such  instrument or instruments
and so voting at any such meeting.  Proof of execution of any such instrument or
of a writing  appointing  any such agent shall be sufficient  for any purpose of
this Indenture and (subject to Section 6.01)  conclusive in favor of the Trustee
and the Company,  if made in the manner provided in this Section.  The record of
any meeting of Holders shall be proved in the manner provided in Section 14.06.

                  The fact and date of the  execution  by any Person of any such
instrument  or  writing  may be proved  by the  affidavit  of a witness  of such
execution or by a certificate of a notary public or other officer  authorized by
law to take  acknowledgments  of deeds,  certifying that the individual  signing
such  instrument or writing  acknowledged  to him or her the execution  thereof.
Where such  execution is by a signer acting in a capacity  other than his or her
individual  capacity,  such  certificate  or  affidavit  shall  also  constitute
sufficient proof of his or her authority.  The fact and date of the execution of
any such  instrument or writing,  or the  authority of the Person  executing the
same, may also be proved in any other manner which the Trustee deems sufficient.

                                       9
<PAGE>

                  The ownership of Notes shall be proved by the Note Register.

                  Any  request,  demand,   authorization,   direction,   notice,
consent,  waiver or other Act of the Holder of any Note shall bind every  future
Holder  of the  same  Note  and  the  Holder  of  every  Note  issued  upon  the
registration of transfer  thereof or in exchange  therefor or in lieu thereof in
respect of anything  done,  omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Note.

                  The  Company  may set any day as a record date for the purpose
of determining the Holders of Outstanding  Notes of any series entitled to give,
make or take any request,  demand,  authorization,  direction,  notice, consent,
waiver or other action provided or permitted by this Indenture to be given, made
or taken by Holders of Notes of such series,  provided  that the Company may not
set a record date for, and the provisions of this paragraph shall not apply with
respect  to,  the  giving or  making  of any  notice,  declaration,  request  or
direction referred to in the next paragraph.  If any record date is set pursuant
to this  paragraph,  the Holders of Outstanding  Notes of the relevant series on
such record date, and no other Holders,  shall be entitled to take or revoke the
relevant  action,  whether or not such Holders  remain Holders after such record
date;  provided that no such action shall be effective hereunder unless taken on
or prior to the applicable Expiration Date by Holders of the requisite principal
amount of Outstanding Notes of such series on such record date.  Nothing in this
paragraph  shall be  construed  to prevent the Company from setting a new record
date for any action for which a record date has previously  been set pursuant to
this paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be cancelled and of no effect), and nothing in this
paragraph  shall be construed to render  ineffective any action taken by Holders
of the requisite principal amount of Outstanding Notes of the relevant series on
the date such action is taken. Promptly after any record date is set pursuant to
this  paragraph,  the Company,  at its own  expense,  shall cause notice of such
record date, the proposed  action by Holders and the applicable  Expiration Date
to be  given  to the  Trustee  in  writing  and to each  Holder  of Notes of the
relevant series in the manner set forth in Section 1.06.

                  The  Trustee  may set any day as a record date for the purpose
of determining  the Holders of Outstanding  Notes of any series entitled to join
in the giving or making of (i) any Notice of Default,  (ii) any  declaration  of
acceleration  referred  to in  Section  5.02,  (iii) any  request  to  institute
proceedings  referred to in Section 5.07(2) or (iv) any direction referred to in
Section 5.12,  in each case with respect to Notes of such series.  If any record
date is set pursuant to this paragraph, the Holders of Outstanding Notes of such
series on such record date, and no other  Holders,  shall be entitled to join in
such notice, declaration, request or direction or to revoke the same, whether or
not such Holders  remain  Holders after such record date;  provided that no such
action shall be effective  hereunder  unless taken on or prior to the applicable
Expiration  Date by Holders of the  requisite  principal  amount of  Outstanding
Notes of such series on such record  date.  Nothing in this  paragraph  shall be
construed  to prevent the Trustee  from setting a new record date for any action
for which a record  date has  previously  been set  pursuant  to this  paragraph
(whereupon the record date previously set shall automatically and with no action
by any Person be  cancelled  and of no effect),  and  nothing in this  paragraph
shall be  construed  to render  ineffective  any action  taken by Holders of the
requisite  principal  amount of Outstanding  Notes of the relevant series on the
date such action is taken.  Promptly  after any record  date is set  pursuant to
this paragraph,  the Trustee,  at the Company's  expense,  shall cause notice of
such record date, the proposed  action by Holders and the applicable  Expiration
Date to be given to the  Company in writing  and to each  Holder of Notes of the
relevant series in the manner set forth in Section 1.06.


                                       10
<PAGE>

                  With respect to any record date set pursuant to this  Section,
the party  hereto  which  sets such  record  date may  designate  any day as the
"Expiration  Date" and from time to time may change the  Expiration  Date to any
earlier or later day;  provided  that no such change shall be  effective  unless
notice of the proposed new Expiration Date is given to the other party hereto in
writing,  and to each Holder of Notes of the  relevant  series in the manner set
forth in  Section  1.06,  on or prior to the  existing  Expiration  Date.  If an
Expiration  Date is not designated  with respect to any record date set pursuant
to this Section,  the party hereto which set such record date shall be deemed to
have initially designated the 180th day after such record date as the Expiration
Date with respect thereto, subject to its right to change the Expiration Date as
provided in this paragraph.  Notwithstanding  the foregoing,  no Expiration Date
shall be later than the 180th day after the applicable record date.

                  Without limiting the foregoing, a Holder entitled hereunder to
take any action  hereunder  with  regard to any  particular  Note may do so with
regard to all or any part of the principal amount of such Note or by one or more
duly appointed  agents each of which may do so pursuant to such appointment with
regard to all or any part of such principal amount.

         Section 1.05      Notices, Etc., to Trustee and Company.

                  Any  request,  demand,   authorization,   direction,   notice,
consent,  election,  waiver or Act of  Holders  or other  document  provided  or
permitted  by this  Indenture to be made upon,  given or furnished  to, or filed
with, the Trustee by any Holder or by the Company, or the Company by the Trustee
or by any  Holder,  shall be  sufficient  for every  purpose  hereunder  (unless
otherwise herein expressly  provided) if in writing and delivered  personally to
an officer or other  responsible  employee of the  addressee,  or transmitted by
facsimile  transmission  or  other  direct  written  electronic  means  to  such
telephone  number or other  electronic  communications  address  as the  parties
hereto shall from time to time  designate,  or transmitted by first-class  mail,
charges prepaid,  to the applicable address set opposite such party's name below
or to such other address as either party hereto may from time to time designate:

          If to the Trustee, to:

          The Chase Manhattan Bank
          450 West 33rd Street - 15th Floor
          New York, New York  10001-2697

          Attention:  Global Trust Services
          Telephone:  (212) 946-8595
          Telecopy:  (212) 946-8160


                                       11
<PAGE>

          If to the Company, to:

          Public Service Company of New Mexico
          Alvarado Square
          Albuquerque, New Mexico  87158

          Attention:  Treasurer
          Telephone:
          Telecopy:

                  Any communication  contemplated herein shall be deemed to have
been made, given,  furnished and filed if personally  delivered,  on the date of
delivery,  if  transmitted  by facsimile  transmission  or other direct  written
electronic means, on the date of transmission, and if transmitted by first-class
mail, on the date of receipt.

         Section 1.06      Notice to Holders; Waiver.

                  Where  this  Indenture  provides  for notice to Holders of any
event,  such  notice  shall  be  sufficiently  given  (unless  otherwise  herein
expressly  provided) if in writing and mailed,  first-class  postage prepaid, to
each Holder  affected by such event,  at his or her address as it appears in the
Note Register, not later than the latest date (if any), and not earlier than the
earliest date (if any),  prescribed  for the giving of such notice.  In any case
where  notice to  Holders  is given by mail,  neither  the  failure to mail such
notice,  nor any defect in any notice so mailed,  to any particular Holder shall
affect the sufficiency of such notice with respect to other Holders.  Where this
Indenture  provides  for  notice in any  manner,  such  notice  may be waived in
writing by the Person  entitled to receive such notice,  either  before or after
the event,  and such waiver shall be the  equivalent of such notice.  Waivers of
notice by Holders shall be filed with the Trustee,  but such filing shall not be
a condition  precedent to the validity of any action taken in reliance upon such
waiver.

                  In case by reason of the suspension of regular mail service or
by reason of any other  cause it shall be  impracticable  to give such notice by
mail,  then such  notification as shall be made with the approval of the Trustee
shall constitute a sufficient notification for every purpose hereunder.

         Section 1.07      Conflict with Trust Indenture Act.

                  This  Indenture  shall be construed as if this  Indenture were
qualified under the Trust Indenture Act and governed  thereby.  If any provision
hereof limits,  qualifies or conflicts  with a provision of the Trust  Indenture
Act which  would be  required  under  such Act to be a part of and  govern  this
Indenture  if this  Indenture  were so  qualified,  the latter  provision  shall
control.  If any provision of this Indenture  modifies or excludes any provision
of the  Trust  Indenture  Act  which  may be so  modified  or  excluded  if this
Indenture were so qualified,  the latter  provision  shall be deemed to apply to
this Indenture as so modified or to be excluded, as the case may be.


                                       12
<PAGE>



         Section 1.08      Effect of Headings and Table of Contents.

                  The  Article  and  Section  headings  herein  and the Table of
Contents are for convenience only and shall not affect the construction hereof.

         Section 1.09      Successors and Assigns.

                  All covenants and  agreements in this Indenture by the Company
shall bind its successors and assigns, whether so expressed or not.

         Section 1.10      Separability Clause.

                  In case any provision in this  Indenture or in the Notes shall
be invalid, illegal or unenforceable,  the validity, legality and enforceability
of the  remaining  provisions  shall  not in any  way be  affected  or  impaired
thereby.

         Section 1.11      Benefits of Indenture.

                  The  trusts  created by this  Indenture  are for the equal and
proportionate  benefit and  security of the Holders  without any priority of any
Note over any other Note. Nothing in this Indenture or in the Notes,  express or
implied,  shall  give to any  Person,  other than the  parties  hereto and their
successors  hereunder  and the  Holders,  any benefit or any legal or  equitable
right, remedy or claim under this Indenture.

         Section 1.12      Governing Law.

                  This  Indenture  and  the  Notes  shall  be  governed  by  and
construed in accordance with the law of the State of New York, without regard to
conflicts of laws principles thereof.

         Section 1.13      Legal Holidays.

                  In any case where any Interest  Payment Date,  Redemption Date
or  Stated  Maturity  of any Note  shall not be a  Business  Day at any Place of
Payment,  then  (notwithstanding any other provision of this Indenture or of the
Notes  (other  than a  provision  of any  Note  of any  series  or in the  Board
Resolution or Officers'  Certificate  which  establishes the terms of such Notes
which  specifically  states  that  such  provision  shall  apply in lieu of this
Section))  payment of interest or principal  (and  premium,  if any) need not be
made  at  such  Place  of  Payment  on such  date,  but may be made on the  next
succeeding  Business Day at such Place of Payment with the same force and effect
as if made on the Interest  Payment Date or  Redemption  Date,  or at the Stated
Maturity,  and, if such payment is made or duly  provided  for on such  Business
Day, then no interest  shall accrue on the amount so payable for the period from
and after such Interest Payment Date, Redemption Date or Stated Maturity, as the
case may be, to such Business Day.

                                       13
<PAGE>


                                   ARTICLE II

                                   NOTE FORMS

         Section 2.01      Forms Generally.

                  The Notes of each series  shall be in  substantially  the form
set forth in this Article,  or in such other form as shall be  established by or
pursuant to a Board Resolution or in one or more indentures supplemental hereto,
in each case with such  appropriate  insertions,  omissions,  substitutions  and
other  variations as are required or permitted by this  Indenture,  and may have
such  letters,  numbers or other  marks of  identification  and such  legends or
endorsements  placed  thereon as may be required to comply with the rules of any
securities exchange or Depositary therefor or as may, consistently  herewith, be
determined by the officers executing such Notes, as evidenced by their execution
thereof.  If the form of Notes of any  series is  established  by  action  taken
pursuant to a Board Resolution,  a copy of an appropriate  record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company and
delivered  to the  Trustee  at or prior to the  delivery  of the  Company  Order
contemplated by Section 3.03 for the authentication and delivery of such Notes.

                  The  definitive  Notes  shall  be  printed,   lithographed  or
engraved on steel engraved  borders or may be produced in any other manner,  all
as  determined  by the  officers  executing  such Notes,  as  evidenced by their
execution of such Notes.

         Section 2.02      Form of Face of Note.

                  [Insert any legend  required by the Internal  Revenue Code and
the regulations thereunder.] 

                        PUBLIC SERVICE COMPANY OF  NEW MEXICO

                              ...............................

No. .............. $ .............

CUSIP No. ____________


                  Public  Service  Company of New  Mexico,  a  corporation  duly
organized  and  existing  under  the  laws  of New  Mexico  (herein  called  the
"Company",  which  term  includes  any  successor  Person  under  the  Indenture
hereinafter  referred  to),  for  value  received,  hereby  promises  to  pay to
 ...................,    or   registered   assigns,    the   principal   sum   of
 ...........................................  Dollars on ...................  [if
the Note is to bear interest  prior to Maturity,  insert - , and to pay interest
thereon from ....................  or from the most recent Interest Payment Date
to  which  interest  has  been  paid  or duly  provided  for,  semi-annually  on
 ............  and ............  in each year, commencing ..............,  at the
rate of ....% per annum,  until the principal  hereof is paid or made  available
for payment [if applicable,  insert - , provided that any principal and premium,
and any such  installment  of interest,  which is overdue shall bear interest at
the rate of .....% per annum (to the extent  that the  payment of such  interest
shall be legally  enforceable),  from the dates such  amounts are due until they
are paid or made  available for payment,  and such interest  shall be payable on
demand].  The interest so payable,  and punctually paid or duly provided for, on
any Interest  Payment Date will, as provided in such  Indenture,  be paid to the
Person in whose name this Note (or one or more Predecessor  Notes) is registered
at the close of  business on the Regular  Record Date for such  interest,  which
shall be the  ............  or ............  (whether or not a Business Day), as
the case may be, next  preceding  such Interest  Payment Date. Any such interest
not so punctually  paid or duly provided for will forthwith  cease to be payable
to the Holder on such  Regular  Record Date and may either be paid to the Person
in whose name this Note (or one or more Predecessor  Notes) is registered at the
close of  business on a Special  Record  Date for the payment of such  Defaulted
Interest to be fixed by the Trustee, notice whereof shall be given to Holders of
Notes of this series not less than 10 days prior to such Special Record Date, or
be paid at any  time in any  other  lawful  manner  not  inconsistent  with  the
requirements of any securities exchange on which the Notes of this series may be
listed,  and upon such notice as may be required by such  exchange,  all as more
fully provided in said Indenture].

                                       14
<PAGE>

                  [If the Note is not to bear interest prior to Maturity, insert
- - The  principal  of this Note shall not bear  interest  except in the case of a
default in payment of principal upon acceleration,  upon redemption or at Stated
Maturity and in such case the overdue  principal  and any overdue  premium shall
bear  interest at the rate of ....% per annum (to the extent that the payment of
such interest shall be legally enforceable), from the dates such amounts are due
until they are paid or made  available  for  payment.  Interest  on any  overdue
principal or premium  shall be payable on demand.  Any such  interest on overdue
principal or premium which is not paid on demand shall bear interest at the rate
of  ......%  per annum (to the  extent  that the  payment  of such  interest  on
interest shall be legally  enforceable),  from the date of such demand until the
amount so demanded is paid or made available for payment.
Interest on any overdue interest shall be payable on demand.]

                  Payment  of the  principal  of (and  premium,  if any) and [if
applicable,  insert - any such] interest on this Note will be made at the office
or agency of the Company  maintained for that purpose in  ............,  in such
coin or  currency  of the United  States of America as at the time of payment is
legal tender for payment of public and private debts [if applicable,  insert - ;
provided,  however, that at the option of the Company payment of interest may be
made by check  mailed to the  address  of the  Person  entitled  thereto as such
address shall appear in the Note Register].

                  Reference  is hereby  made to the further  provisions  of this
Note set forth on the reverse  hereof,  which further  provisions  shall for all
purposes have the same effect as if set forth at this place.

                  Unless  the  certificate  of  authentication  hereon  has been
executed by the Trustee  referred to on the reverse hereof by manual  signature,
this Note shall not be entitled to any benefit  under the  Indenture or be valid
or obligatory for any purpose.


                                       15
<PAGE>



                           IN WITNESS  WHEREOF,  the  Company  has  caused  this
instrument to be duly executed under its corporate seal.

                                          PUBLIC SERVICE COMPANY OF
                                            NEW MEXICO

                                          By..............................

Attest:

 ................................

         Section 2.03      Form of Reverse of Note.

                  This Note is one of a duly authorized issue of senior notes of
the Company (herein called the "Notes"),  issued and to be issued in one or more
series under an Indenture,  dated as of [____________],  1998 (herein called the
"Indenture",  which  term  shall  have  the  meaning  assigned  to  it  in  such
instrument),  between  the  Company  and The Chase  Manhattan  Bank,  as Trustee
(herein  called the "Trustee",  which term includes any successor  trustee under
the Indenture), and reference is hereby made to the Indenture for a statement of
the respective rights,  limitations of rights,  duties and immunities thereunder
of the  Company,  the Trustee and the Holders of the Notes and of the terms upon
which the Notes are, and are to be,  authenticated  and delivered.  This Note is
one of the  series  designated  on the face  hereof [if  applicable,  insert - ,
limited in aggregate principal amount to $...........].

                  [If applicable,  insert - The Notes of this series are subject
to redemption upon not less than 30 days' notice by mail, [if applicable, insert
- - (1) on ........... in any year commencing with the year ........... and ending
with the year ...........  through operation of the sinking fund for this series
at a Redemption  Price equal to 100% of the  principal  amount,  and (2)] at any
time [if applicable,  insert - on or after  ..........,  19..], as a whole or in
part,  at the  election  of the  Company,  at the  following  Redemption  Prices
(expressed as percentages of the principal amount):  If redeemed [if applicable,
insert  - on or  before  ...............,  ...%,  and if  redeemed]  during  the
12-month period beginning ............. of the years indicated,

      Year               Redemption              Year             Redemption
                           Price                                     Price
      ----               ----------              ----             ---------- 






                                       16
<PAGE>


and  thereafter at a Redemption  Price equal to .....% of the principal  amount,
together in the case of any such  redemption [if  applicable,  insert - (whether
through  operation of the sinking fund or otherwise)]  with accrued  interest to
the Redemption  Date, but interest  installments  whose Stated Maturity is on or
prior to such  Redemption  Date will be payable to the Holders of such Notes, or
one or more  Predecessor  Notes,  of  record  at the  close of  business  on the
relevant  Record Dates  referred to on the face  hereof,  all as provided in the
Indenture.]

                  [If applicable,  insert - The Notes of this series are subject
to redemption upon not less than 30 days' notice by mail, (1) on ............ in
any year  commencing  with the year  ....  and  ending  with the year  .........
through  operation of the sinking fund for this series at the Redemption  Prices
for redemption  through  operation of the sinking fund (expressed as percentages
of the principal  amount) set forth in the table below,  and (2) at any time [if
applicable,  insert - on or after  ............],  as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption  otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below:  If redeemed  during the  12-month  period
beginning ............ of the years indicated,

                          Redemption Price            Redemption Price For
                            For Redemption             Redemption Otherwise
                          Through Operation           Than Through Operation
           Year          of the Sinking Fund           of the Sinking Fund
           ----          -------------------          ----------------------





and  thereafter at a Redemption  Price equal to .....% of the principal  amount,
together in the case of any such redemption  (whether  through  operation of the
sinking fund or otherwise)  with accrued  interest to the  Redemption  Date, but
interest  installments  whose Stated  Maturity is on or prior to such Redemption
Date will be payable to the  Holders of such Notes,  or one or more  Predecessor
Notes,  of record at the close of business on the relevant Record Dates referred
to on the face hereof, all as provided in the Indenture.]

                  [If applicable,  insert - Notwithstanding  the foregoing,  the
Company  may not,  prior to  .............,  redeem any Notes of this  series as
contemplated by [if applicable,  insert - Clause (2) of] the preceding paragraph
as a part of, or in anticipation of, any refunding operation by the application,
directly  or  indirectly,  of moneys  borrowed  having an  interest  cost to the
Company (calculated in accordance with generally accepted financial practice) of
less than .....% per annum.]

                  [If  applicable,  insert - The  sinking  fund for this  series
provides for the redemption on ............ in each year beginning with the year
 .......  and ending with the year ......  of [if  applicable,  insert - not less
than  $..........  ("mandatory  sinking  fund")  and not more  than]  $.........
aggregate  principal  amount  of Notes  of this  series.  Notes  of this  series
acquired  or  redeemed by the Company  otherwise  than  through [if  applicable,
insert - mandatory] sinking fund payments may be credited against subsequent [if
applicable,  insert - mandatory]  sinking fund payments otherwise required to be
made [if applicable, insert - , in the inverse order in which they become due].]


                                       17
<PAGE>

                  [If the Note is subject to redemption of any kind, insert - In
the event of  redemption  of this Note in part only, a new Note or Notes of this
series and of like tenor for the unredeemed portion hereof will be issued in the
name of the Holder hereof upon the cancellation hereof.]

                  [If applicable, insert - The Indenture contains provisions for
defeasance at any time of [the entire  indebtedness  of this Note] [or] [certain
restrictive  covenants  and Events of Default  with  respect to this Note] [, in
each case] upon compliance with certain conditions set forth in the Indenture.]

                  [If the Note is not an Original Issue Discount Note,  insert -
If an Event of Default  with  respect to Notes of this series shall occur and be
continuing,  the  principal  of the Notes of this series may be declared due and
payable in the manner and with the effect provided in the Indenture.]

                  [If the Note is an Original Issue  Discount Note,  insert - If
an Event of Default  with  respect to Notes of this  series  shall  occur and be
continuing,  an amount of  principal of the Notes of this series may be declared
due and  payable in the manner and with the effect  provided  in the  Indenture.
Such amount shall be equal to [insert formula for determining the amount].  Upon
payment (i) of the amount of  principal  so declared due and payable and (ii) of
interest on any overdue  principal,  premium and  interest  (in each case to the
extent that the payment of such interest shall be legally  enforceable),  all of
the  Company's  obligations  in respect of the payment of the  principal  of and
premium and interest, if any, on the Notes of this series shall terminate.]

                  The  Indenture  permits,  with certain  exceptions  as therein
provided,  the  amendment  thereof  and  the  modification  of  the  rights  and
obligations  of the  Company  and the rights of the Holders of the Notes of each
series to be  affected  under the  Indenture  at any time by the Company and the
Trustee with the consent of the Holders of a majority in principal amount of the
Notes at the time Outstanding of each series to be affected.  The Indenture also
contains provisions permitting the Holders of specified percentages in principal
amount of the Notes of each  series  at the time  Outstanding,  on behalf of the
Holders of all Notes of such  series,  to waive  compliance  by the Company with
certain provisions of the Indenture and to waive certain past defaults under the
Indenture  and  their  consequences,  provided,  however,  that if any such past
default  affects  more than one series of Notes,  the  Holders of a majority  in
aggregate  principal  amount  of  the  Outstanding  Notes  of all  such  series,
considered as one class,  shall have the right to waive such past  default,  and
not the Holders of the Notes of any one such series.  Any such consent or waiver
by the Holder of this Note shall be conclusive  and binding upon such Holder and
upon  all  future  Holders  of  this  Note  and  of any  Note  issued  upon  the
registration  of  transfer  hereof or in exchange  therefor  or in lieu  hereof,
whether or not notation of such consent or waiver is made upon this Note.



                                       18
<PAGE>

                  As provided in and subject to the provisions of the Indenture,
the Holder of this Note  shall not have the right to  institute  any  proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or
for any other remedy thereunder,  unless such Holder shall have previously given
the Trustee written notice of a continuing  Event of Default with respect to the
Notes of this  series,  the  Holders  of not less than a majority  in  aggregate
principal  amount of the Notes of all series at the time  Outstanding in respect
of which an Event of Default shall have  occurred and be  continuing  shall have
made written request to the Trustee to institute  proceedings in respect of such
Event of Default as Trustee and offered the Trustee  reasonable  indemnity,  and
the Trustee  shall not have received from the Holders of a majority in principal
amount of Notes of all  series at the time  Outstanding  in  respect of which an
Event of Default shall have occurred and be continuing a direction  inconsistent
with such request,  and shall have failed to institute any such proceeding,  for
60 days after  receipt  of such  notice,  request  and offer of  indemnity.  The
foregoing  shall not apply to any suit instituted by the Holder of this Note for
the  enforcement  of any payment of principal  hereof or any premium or interest
hereon on or after the respective due dates expressed herein.

                  No reference  herein to the Indenture and no provision of this
Note or of the  Indenture  shall alter or impair the  obligation of the Company,
which is absolute and unconditional, to pay the principal of and any premium and
interest on this Note at the times, place and rate, and in the coin or currency,
herein prescribed.

                  As   provided  in  the   Indenture   and  subject  to  certain
limitations  therein set forth,  the transfer of this Note is registrable in the
Note Register,  upon surrender of this Note for  registration of transfer at the
office or agency of the  Company  in any place  where the  principal  of and any
premium and interest on this Note are payable,  duly endorsed by, or accompanied
by a written  instrument of transfer in form satisfactory to the Company and the
Note  Registrar  duly  executed  by,  the  Holder  hereof or his  attorney  duly
authorized in writing, and thereupon one or more new Notes of this series and of
like tenor,  of authorized  denominations  and for the same aggregate  principal
amount, will be issued to the designated transferee or transferees.

                  The Notes of this series are issuable only in registered  form
without coupons in denominations of $.......  and any integral multiple thereof.
As provided in the  Indenture  and  subject to certain  limitations  therein set
forth,  Notes of this series are  exchangeable  for a like  aggregate  principal
amount  of Notes of this  series  and of like  tenor of a  different  authorized
denomination, as requested by the Holder surrendering the same.

                  No service charge shall be made for any such  registration  of
transfer or exchange, but the Company may require payment of a sum sufficient to
cover any tax or other governmental charge payable in connection therewith.

                  Prior to due  presentment  of this  Note for  registration  of
transfer,  the Company,  the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Note is  registered  as the owner hereof
for all purposes,  whether or not this Note be overdue, and neither the Company,
the Trustee nor any such agent shall be affected by notice to the contrary.

                  All terms used in this Note which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.


                                       19
<PAGE>


         Section 2.04      Form of Legend for Global Notes.

                  Unless otherwise specified as contemplated by Section 3.01 for
the Notes  evidenced  thereby,  every Global Note  authenticated  and  delivered
hereunder shall bear a legend in substantially the following form:

         THIS  NOTE  IS A  GLOBAL  NOTE  WITHIN  THE  MEANING  OF THE  INDENTURE
         HEREINAFTER  REFERRED TO AND IS  REGISTERED IN THE NAME OF A DEPOSITARY
         OR A NOMINEE  THEREOF.  THIS NOTE MAY NOT BE  EXCHANGED  IN WHOLE OR IN
         PART FOR A NOTE REGISTERED, AND NO TRANSFER OF THIS NOTE IN WHOLE OR IN
         PART MAY BE  REGISTERED,  IN THE NAME OF ANY  PERSON  OTHER  THAN  SUCH
         DEPOSITARY OR A NOMINEE  THEREOF,  EXCEPT IN THE LIMITED  CIRCUMSTANCES
         DESCRIBED IN THE INDENTURE.

         Section 2.05      Form of Trustee's Certificate of Authentication.

                  The  Trustee's  certificate  of  authentication  shall  be  in
substantially the following form:

                         CERTIFICATION OF AUTHENTICATION

                  This is one of the  Notes  of the  series  designated  therein
referred to in the within-mentioned Indenture.


Dated:                         [__________________________],
                                   As Trustee


                               By.........................................
                                          Authorized Officer



                                       20
<PAGE>





                                   ARTICLE III

                                    THE NOTES

         Section 3.01      Amount Unlimited; Issuable in Series.

                  The  aggregate   principal   amount  of  Notes  which  may  be
authenticated and delivered under this Indenture is unlimited.  The Notes may be
issued in one or more  series.  There shall be  established  by or pursuant to a
Board  Resolution and,  subject to Section 3.03, set forth, or determined in the
manner  provided,  in an Officers'  Certificate,  or  established in one or more
indentures supplemental hereto, prior to the issuance of Notes of any series,

                  (1)  the  title  of the  Notes  of  the  series  (which  shall
distinguish the Notes of the series from Notes of any other series);

                  (2) any limit upon the aggregate principal amount of the Notes
of the series which may be  authenticated  and  delivered  under this  Indenture
(except for Notes  authenticated and delivered upon registration of transfer of,
or in exchange for, or in lieu of, other Notes of the series pursuant to Section
3.04,  3.05,  3.06,  9.06 or 11.07 and except for any Notes  which,  pursuant to
Section  3.03,  are  deemed  never  to have  been  authenticated  and  delivered
hereunder);

                  (3) the Person or Persons (without specific identification) to
whom  interest on Notes of such series shall be payable on any Interest  Payment
Date,  if other  than the  Persons  in whose  names  such  Notes (or one or more
Predecessor Notes) are registered at the close of business on the Regular Record
Date for such interest;

                  (4) the date or dates on which the  principal  of the Notes of
such  series is payable or any  formula or other  method or other means by which
such date or dates shall be  determined,  by reference to an index or other fact
or event ascertainable outside of this Indenture or otherwise (without regard to
any provisions for redemption, prepayment, acceleration, purchase or extension);

                  (5) the rate or rates at which the Notes of such series  shall
bear interest,  if any  (including the rate or rates at which overdue  principal
shall bear  interest,  if  different  from the rate or rates at which such Notes
shall bear interest prior to Maturity, and, if applicable,  the rate or rates at
which overdue  premium or interest shall bear interest,  if any), or any formula
or other method or other means by which such rate or rates shall be  determined,
by  reference to an index or other fact or event  ascertainable  outside of this
Indenture or otherwise; the date or dates from which such interest shall accrue;
and the Interest  Payment Dates on which such interest  shall be payable and the
Regular  Record  Date,  if any,  for the  interest  payable on such Notes on any
Interest Payment Date;

                  (6) the right, if any, to extend the interest  payment periods
and the duration of such extension;

                                       21
<PAGE>

                  (7) the place or places at which or  methods  by which (A) the
principal of and premium, if any, and interest,  if any, on Notes of such series
shall be payable,  (B)  registration  of transfer of Notes of such series may be
effected,  (C) exchanges of Notes of such series may be effected and (D) notices
and  demands to or upon the  Company in respect of the Notes of such  series and
this Indenture may be served;  the Note Registrar and any Paying Agent or Agents
for such series; and if such is the case, that the principal of such Notes shall
be payable without presentment or surrender thereof;

                  (8) the period or periods within which, the price or prices at
which and the terms and  conditions  upon  which any Notes of the  series may be
redeemed,  in whole or in part,  at the option of the Company and, if other than
by a Board Resolution, the manner in which any election by the Company to redeem
the Notes shall be evidenced;

                  (9) the  obligation,  if any,  of the  Company  to  redeem  or
purchase  any Notes of the series  pursuant  to any  sinking  fund or  analogous
provisions  or at the  option of the  Holder  thereof  and the period or periods
within  which,  the price or prices at which and the terms and  conditions  upon
which any Notes of the series  shall be  redeemed or  purchased,  in whole or in
part, pursuant to such obligation;

                  (10) if other than  denominations  of $1,000 and any  integral
multiple  thereof,  the  denominations in which any Notes of the series shall be
issuable;

                  (11) if the amount of  principal of or any premium or interest
on any Notes of the  series  may be  determined  with  reference  to an index or
pursuant to a formula,  the manner in which such amounts  shall be determined to
the extent not established pursuant to clause (5) of this paragraph;

                  (12) if other  than  the  currency  of the  United  States  of
America, the currency, currencies or currency units in which the principal of or
any  premium or  interest  on any Notes of the series  shall be payable  and the
manner of  determining  the  equivalent  thereof in the  currency  of the United
States of America for any purpose,  including for purposes of the  definition of
"Outstanding" in Section 1.01;

                  (13) if the  principal  of or any  premium or  interest on any
Notes of the series is to be  payable,  at the  election  of the  Company or the
Holder  thereof,  in one or more currencies or currency units other than that or
those in which such Notes are stated to be payable, the currency,  currencies or
currency  units in which the  principal  of or any  premium or  interest on such
Notes as to which such  election  is made shall be payable,  the periods  within
which and the terms and  conditions  upon which such  election is to be made and
the amount so payable (or the manner in which such amount shall be determined);

                  (14) if other than the entire  principal  amount thereof,  the
portion  of the  principal  amount of any  Notes of the  series  which  shall be
payable upon  declaration of  acceleration of the Maturity  thereof  pursuant to
Section 5.02;

                  (15) if the principal amount payable at the Stated Maturity of
any Notes of the  series  will not be  determinable  as of any one or more dates
prior to the  Stated  Maturity,  the  amount  which  shall be  deemed  to be the
principal amount of such Notes as of any such date for any purpose thereunder or
hereunder, including the principal amount thereof which shall be due and payable
upon any Maturity other than the Stated  Maturity or which shall be deemed to be
Outstanding  as of any date prior to the Stated  Maturity (or, in any such case,
the manner in which  such  amount  deemed to be the  principal  amount  shall be
determined);


                                       22
<PAGE>

                  (16) if applicable,  that the Notes of the series, in whole or
any specified  part,  shall be  defeasible  pursuant to Section 13.02 or Section
13.03 or both such Sections and, if other than by a Board Resolution, the manner
in which any election by the Company to defease such Notes shall be evidenced;

                  (17) if  applicable,  that any  Notes of the  series  shall be
issuable  in whole or in part in the form of one or more  Global  Notes and,  in
such case, the respective  Depositaries  for such Global Notes,  the form of any
legend or legends which shall be borne by any such Global Note in addition to or
in lieu of that set forth in Section 2.04 and any  circumstances  in addition to
or in lieu of those set forth in Clause  (2) of the last  paragraph  of  Section
3.05 in which  any such  Global  Note may be  exchanged  in whole or in part for
Notes  registered,  and any transfer of such Global Note in whole or in part may
be  registered,  in the name or names of Persons other than the  Depositary  for
such Global Note or a nominee thereof;

                  (18) any addition to or change in the Events of Default  which
applies to any Notes of the series and any change in the right of the Trustee or
the requisite  Holders of such Notes to declare the principal amount thereof due
and payable pursuant to Section 5.02;

                  (19) any addition to or change in the  covenants  set forth in
Article X which applies to Notes of the series; and

                  (20) any other terms of the series  (which  terms shall not be
inconsistent  with the  provisions  of this  Indenture,  except as  permitted by
Section 9.01(5)).

                  All Notes of any one series shall be  substantially  identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board  Resolution  referred to above and  (subject  to Section  3.03) set
forth,  or  determined  in the manner  provided,  in the  Officers'  Certificate
referred to above or in any such indenture supplemental hereto.

                  If any of the terms of the  series are  established  by action
taken pursuant to a Board  Resolution,  a copy of an appropriate  record of such
action  shall be certified  by the  Secretary  or an Assistant  Secretary of the
Company  and  delivered  to the  Trustee  at or  prior  to the  delivery  of the
Officers' Certificate setting forth the terms of the series.

         Section 3.02      Denominations.

                  Except as  permitted  by  Section  9.01(4),  the Notes of each
series shall be issuable only in fully  registered form without coupons and only
in such  denominations as shall be specified as contemplated by Section 3.01. In
the absence of any such specified  denomination with respect to the Notes of any
series,  the Notes of such series shall be issuable in  denominations  of $1,000
and any integral multiple thereof.


                                       23
<PAGE>

         Section 3.03      Execution, Authentication, Delivery and Dating.

                  Unless otherwise provided as contemplated by Section 3.01 with
respect to any series of Notes,  the Notes  shall be  executed  on behalf of the
Company  by its  Chairman  of the Board,  its Vice  Chairman  of the Board,  its
President or one of its Vice Presidents,  or by any other officer or employee of
the  Company who is  authorized  by a Board  Resolution  to execute the Notes on
behalf of the Company,  under its corporate  seal affixed  thereto or reproduced
thereon  attested by its  Secretary  or one of its  Assistant  Secretaries.  The
signature of any of these individuals on the Notes may be manual or facsimile.

                  Notes   bearing  the  manual  or   facsimile   signatures   of
individuals  who were at any time the proper  officers or other employees of the
Company shall bind the Company,  notwithstanding that such individuals or any of
them  have  ceased  to  hold  such  offices  or  be so  employed  prior  to  the
authentication  and  delivery of such Notes or did not hold such offices or were
not so employed at the date of such Notes.

                  At any time and from  time to time  after  the  execution  and
delivery of this Indenture, the Company may deliver Notes of any series executed
by the Company to the Trustee for authentication,  together with a Company Order
for the authentication and delivery of such Notes, and the Trustee in accordance
with  the  Company  Order  shall   authenticate   and  deliver  such  Notes.  In
authenticating such Notes, and accepting the additional  responsibilities  under
this  Indenture  in  relation to such  Notes,  the Trustee  shall be entitled to
receive, and (subject to Section 6.01) shall be fully protected in relying upon,
an Opinion of Counsel stating,

                  (A) if the  form of such  Notes  has  been  established  by or
pursuant to Board  Resolution  or in a  supplemental  indenture  as permitted by
Section  2.01,  that such  form has been  duly  authorized  by the  Company  and
established in conformity with the provisions of this Indenture;

                  (B) if the terms of such  Notes  have been  established  by or
pursuant to Board  Resolution  or in a  supplemental  indenture  as permitted by
Section  3.01,  that such terms have been duly  authorized  by the  Company  and
established in conformity with the provisions of this Indenture;

                  (C) that such Notes,  when  authenticated and delivered by the
Trustee and issued by the  Company in the manner and  subject to any  conditions
specified  in such  Opinion of  Counsel,  will have been duly  issued  under the
Indenture  and will  constitute  valid and legally  binding  obligations  of the
Company,  entitled to the benefits provided by the Indenture, and enforceable in
accordance with their terms, subject to (a) bankruptcy,  insolvency,  fraudulent
transfer,  reorganization,  moratorium and similar laws of general applicability
relating to or affecting  creditors' rights and to general equity principles and
(b) the  qualification  that certain waivers,  procedures,  remedies,  and other
provisions  of such  Notes  and this  Indenture  may be  unenforceable  under or
limited by state law; and


                                       24
<PAGE>

                  (D) that all consents or  approvals  of the New Mexico  Public
Utility Commission (or any successor agency), the Arizona Corporation Commission
(or any  successor  agency) and of any  federal  regulatory  agency  required in
connection  with the Company's  execution and delivery of this Indenture or such
series of Notes have been obtained and not  withdrawn  (except that no statement
need be made with respect to state securities laws or the Federal Power Act).

                  If such form or terms have been so  established,  the  Trustee
shall not be  required  to  authenticate  such  Notes if the issue of such Notes
pursuant to this  Indenture  will  affect the  Trustee's  own rights,  duties or
immunities  under the Notes and this Indenture or otherwise in a manner which is
not  reasonably  acceptable to the Trustee.  Notwithstanding  the  provisions of
Section 3.01 and of the preceding paragraph, if all Notes of a series are not to
be  originally  issued at one time,  it shall not be  necessary  to deliver  the
Officers' Certificate otherwise required pursuant to Section 3.01 or the Company
Order and  Opinion of Counsel  otherwise  required  pursuant  to such  preceding
paragraph at or prior to the  authentication of each Note of such series if such
documents are delivered at or prior to the authentication upon original issuance
of the first Note of such series to be issued.

                  Each Note shall be dated the date of its authentication.

                  No Note shall be entitled to any benefit under this  Indenture
or be valid or  obligatory  for any purpose  unless there appears on such Note a
certificate  of  authentication  substantially  in the form  provided for herein
executed by the Trustee by manual signature of an authorized  officer,  and such
certificate upon any Note shall be conclusive  evidence,  and the only evidence,
that  such  Note  has  been  duly   authenticated   and   delivered   hereunder.
Notwithstanding  the foregoing,  if any Note shall have been  authenticated  and
delivered  hereunder  but never issued and sold by the Company,  and the Company
shall deliver such Note to the Trustee for  cancellation  as provided in Section
3.09, for all purposes of this Indenture such Note shall be deemed never to have
been  authenticated  and delivered  hereunder and shall never be entitled to the
benefits of this Indenture.

         Section 3.04      Temporary Notes.

                  Pending the preparation of definitive Notes of any series, the
Company may execute,  and upon Company Order the Trustee shall  authenticate and
deliver,   temporary  Notes  which  are  printed,   lithographed,   typewritten,
mimeographed   or   otherwise   produced,   in  any   authorized   denomination,
substantially  of the tenor of the  definitive  Notes in lieu of which  they are
issued and with such appropriate insertions, omissions,  substitutions and other
variations  as the  officers or other  employees of the Company  executing  such
Notes may determine, as evidenced by their execution of such Notes.

                  If temporary Notes of any series are issued,  the Company will
cause definitive Notes of that series to be prepared without unreasonable delay.
After the preparation of definitive Notes of such series, the temporary Notes of
such  series  shall be  exchangeable  for  definitive  Notes of such series upon
surrender of the  temporary  Notes of such series at the office or agency of the
Company in a Place of Payment  for that  series,  without  charge to the Holder.
Upon  surrender  for  cancellation  of any one or more  temporary  Notes  of any
series, the Company shall execute and the Trustee shall authenticate and deliver
in exchange  therefor one or more  definitive  Notes of the same series,  of any
authorized denominations and of like tenor and aggregate principal amount. Until
so  exchanged,  the  temporary  Notes of any  series  shall in all  respects  be
entitled to the same benefits under this  Indenture as definitive  Notes of such
series and tenor.


                                       25
<PAGE>

         Section 3.05      Registration, Registration of Transfer and Exchange.

                  The  Company  shall  cause to be kept at the  Corporate  Trust
Office of the Trustee a register (the  register  maintained in such office or in
any other  office or agency of the  Company in a Place of Payment  being  herein
sometimes  referred  to as the  "Note  Register")  in  which,  subject  to  such
reasonable  regulations as it may  prescribe,  the Company shall provide for the
registration of Notes and of transfers of Notes. The Trustee is hereby appointed
"Note Registrar" for the purpose of registering  Notes and transfers of Notes as
herein provided.  Anything herein to the contrary  notwithstanding,  the Company
may  designate  one or more of its offices as an office in which a register with
respect to the Notes of one or more series shall be maintained,  and the Company
may  designate  itself the Note  Registrar  with  respect to one or more of such
series;  provided,  however,  that there shall be no more than one Note Register
and one Note Registrar for each series of Notes. The Note Register shall be open
for inspection by the Trustee and the Company at all reasonable times.

                  Upon surrender for  registration  of transfer of any Note of a
series at the office or agency of the  Company  in a Place of  Payment  for that
series,  the Company  shall  execute,  and the Trustee  shall  authenticate  and
deliver,  in the name of the designated  transferee or transferees,  one or more
new Notes of the same series, of any authorized  denominations and of like tenor
and aggregate principal amount.

                  At the  option  of the  Holder,  Notes  of any  series  may be
exchanged for other Notes of the same series,  of any  authorized  denominations
and of like tenor and aggregate principal amount, upon surrender of the Notes to
be exchanged at such office or agency. Whenever any Notes are so surrendered for
exchange,  the Company shall  execute,  and the Trustee shall  authenticate  and
deliver, the Notes which the Holder making the exchange is entitled to receive.

                  All Notes issued upon any registration of transfer or exchange
of Notes shall be the valid  obligations  of the  Company,  evidencing  the same
debt,  and  entitled to the same  benefits  under this  Indenture,  as the Notes
surrendered upon such registration of transfer or exchange.

                  Every  Note  presented  or  surrendered  for  registration  of
transfer or for exchange  shall (if so required by the  Company,  the Trustee or
the Note Registrar) be duly endorsed,  or be accompanied by a written instrument
of  transfer  in form  satisfactory  to the  Company,  the  Trustee  or the Note
Registrar,  as the case may be,  duly  executed,  by the  Holder  thereof or his
attorney duly authorized in writing.

                  No  service  charge  shall  be made  for any  registration  of
transfer  or exchange  of Notes,  but the  Company may require  payment of a sum
sufficient to cover any tax or other governmental  charge that may be imposed in
connection with any  registration  of transfer or exchange of Notes,  other than
exchanges pursuant to Section 3.04, 9.06 or 11.07 not involving any transfer.


                                       26
<PAGE>

                  If the Notes of any series  (or of any  series  and  specified
tenor) are to be  redeemed,  the  Company  shall not be  required  (A) to issue,
register the transfer of or exchange any Notes of that series (or of that series
and  specified  tenor,  as the case may be)  during  a period  beginning  at the
opening  of  business  15 days  before  the day of the  mailing  of a notice  of
redemption of any such Notes  selected for redemption and ending at the close of
business  on the day of such  mailing,  or (B) to  register  the  transfer of or
exchange any Note so selected  for  redemption  in whole or in part,  except the
unredeemed portion of any Note being redeemed in part.

                  The  provisions  of Clauses (1),  (2), (3) and (4) below shall
apply only to Global Notes:

                  (1) Each Global Note authenticated  under this Indenture shall
be registered in the name of the Depositary designated for such Global Note or a
nominee  thereof  and  delivered  to such  Depositary  or a nominee  thereof  or
custodian therefor, and each such Global Note shall constitute a single Note for
all purposes of this Indenture.

                  (2) Notwithstanding any other provision in this Indenture,  no
Global Note may be  exchanged in whole or in part for Notes  registered,  and no
transfer of a Global Note in whole or in part may be registered,  in the name of
any Person other than the Depositary  for such Global Note or a nominee  thereof
unless (A) such  Depositary (i) has notified the Company that it is unwilling or
unable to continue as Depositary for such Global Note or (ii) has ceased to be a
clearing agency registered under the Exchange Act, (B) there shall have occurred
and be  continuing  an Event of Default  with respect to such Global Note or (C)
there shall exist such  circumstances,  if any, in addition to or in lieu of the
foregoing as have been  specified  for this purpose as  contemplated  by Section
3.01.

                  (3) Subject to Clause (2) above, any exchange of a Global Note
for  other  Notes  may be made in whole  or in part,  and all  Notes  issued  in
exchange for a Global Note or any portion  thereof  shall be  registered in such
names as the Depositary for such Global Note shall direct.

                  (4) Every Note  authenticated  and delivered upon registration
of transfer  of, or in exchange  for or in lieu of, a Global Note or any portion
thereof,  whether pursuant to this Section, Section 3.04, 3.06, 9.06 or 11.07 or
otherwise,  shall be authenticated and delivered in the form of, and shall be, a
Global Note,  unless such Note is  registered in the name of a Person other than
the Depositary for such Global Note or a nominee thereof.

         Section 3.06      Mutilated, Destroyed, Lost and Stolen Notes.

                  If any  mutilated  Note is  surrendered  to the  Trustee,  the
Company shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Note of the same  series and of like tenor and  principal  amount
and bearing a number not contemporaneously outstanding.

                  If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any Note and
(ii) such  security or indemnity as may be required by them to save each of them
and any agent of either of them harmless,  then, in the absence of notice to the
Company  or the  Trustee  that  such  Note  has  been  acquired  by a bona  fide
purchaser,  the Company  shall execute and the Trustee  shall  authenticate  and
deliver,  in lieu of any such destroyed,  lost or stolen Note, a new Note of the
same  series and of like  tenor and  principal  amount and  bearing a number not
contemporaneously outstanding.


                                       27
<PAGE>

                  In case any such mutilated, destroyed, lost or stolen Note has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Note, pay such Note.

                  Upon the  issuance  of any new Note  under this  Section,  the
Company may require  the payment of a sum  sufficient  to cover any tax or other
governmental  charge  that may be  imposed  in  relation  thereto  and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

                  Every new Note of any series  issued  pursuant to this Section
in lieu of any  destroyed,  lost or stolen  Note shall  constitute  an  original
additional contractual obligation of the Company,  whether or not the destroyed,
lost or stolen  Note shall be at any time  enforceable  by anyone,  and shall be
entitled to all the benefits of this Indenture equally and proportionately  with
any and all other Notes of that series duly issued hereunder.

                  The  provisions  of  this  Section  are  exclusive  and  shall
preclude (to the extent  lawful) all other  rights and remedies  with respect to
the replacement or payment of mutilated, destroyed, lost or stolen Notes.

         Section 3.07      Payment of Interest; Interest Rights Preserved.

                  Except as otherwise  provided as  contemplated by Section 3.01
with respect to any series of Notes,  interest on any Note which is payable, and
is punctually  paid or duly provided for, on any Interest  Payment Date shall be
paid to the Person in whose name that Note (or one or more Predecessor Notes) is
registered  at the  close  of  business  on the  Regular  Record  Date  for such
interest.

                  Any interest on any Note of any series  which is payable,  but
is not  punctually  paid or duly  provided  for, on any  Interest  Payment  Date
(herein called "Defaulted  Interest") shall forthwith cease to be payable to the
Holder on the relevant Regular Record Date by virtue of having been such Holder,
and such Defaulted Interest may be paid by the Company,  at its election in each
case, as provided in Clause (1) or (2) below:

                  (1) The  Company  may elect to make  payment of any  Defaulted
Interest  to the  Persons  in whose  names  the Notes of such  series  (or their
respective  Predecessor  Notes) are  registered  at the close of  business  on a
Special Record Date for the payment of such Defaulted  Interest,  which shall be
fixed in the following  manner.  The Company shall notify the Trustee in writing
of the amount of  Defaulted  Interest  proposed  to be paid on each Note of such
series and the date of the  proposed  payment,  and at the same time the Company
shall deposit with the Trustee an amount of money equal to the aggregate  amount
proposed  to be paid in  respect  of  such  Defaulted  Interest  or  shall  make
arrangements  satisfactory  to the Trustee for such deposit prior to the date of
the  proposed  payment,  such money when  deposited  to be held in trust for the
benefit of the  Persons  entitled to such  Defaulted  Interest as in this Clause
provided.  Thereupon the Trustee shall fix a Special Record Date for the payment
of such  Defaulted  Interest  which  shall be not more than 15 days and not less
than 10 days prior to the date of the proposed payment and not less than 10 days
after the  receipt by the  Trustee of the notice of the  proposed  payment.  The
Trustee shall  promptly  notify the Company of such Special  Record Date and, in
the name and at the expense of the  Company,  shall cause notice of the proposed
payment of such  Defaulted  Interest and the Special  Record Date therefor to be
given to each  Holder of Notes of such series in the manner set forth in Section
1.06,  not less than 10 days prior to such Special  Record  Date.  Notice of the
proposed payment of such Defaulted Interest and the Special Record Date therefor
having been so mailed,  such Defaulted  Interest shall be paid to the Persons in
whose names the Notes of such series (or their respective Predecessor Notes) are
registered  at the close of  business on such  Special  Record Date and shall no
longer be payable pursuant to the following Clause (2).


                                       28
<PAGE>

                  (2) The Company may make payment of any Defaulted  Interest on
the Notes of any series in any other  lawful  manner not  inconsistent  with the
requirements of any securities  exchange on which such Notes may be listed,  and
upon such notice as may be required by such exchange,  if, after notice given by
the Company to the Trustee of the proposed payment pursuant to this Clause, such
manner of payment shall be deemed practicable by the Trustee.

                  Subject to the foregoing provisions of this Section, each Note
delivered  under this Indenture upon  registration of transfer of or in exchange
for or in lieu of any other Note shall carry the rights to interest  accrued and
unpaid, and to accrue, which were carried by such other Note.

         Section 3.08      Persons Deemed Owners.

                  Prior  to  due  presentment  of a  Note  for  registration  of
transfer,  the Company,  the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Note is  registered as the owner of such
Note for the purpose of  receiving  payment of  principal of and any premium and
(subject to Section  3.07) any interest on such Note and for all other  purposes
whatsoever,  whether or not such Note be overdue,  and neither the Company,  the
Trustee nor any agent of the Company or the Trustee  shall be affected by notice
to the contrary.

         Section 3.09      Cancellation.

                  All Notes surrendered for payment, redemption, registration of
transfer or exchange or for credit  against any sinking fund payment  shall,  if
surrendered  to any Person other than the  Trustee,  be delivered to the Trustee
and shall be promptly  cancelled  by it. The Company may at any time  deliver to
the Trustee for cancellation any Notes  previously  authenticated  and delivered
hereunder which the Company may have acquired in any manner whatsoever,  and may
deliver to the Trustee (or to any other  Person for delivery to the Trustee) for
cancellation any Notes previously  authenticated hereunder which the Company has
not issued and sold, and all Notes so delivered  shall be promptly  cancelled by
the Trustee.  No Notes shall be  authenticated in lieu of or in exchange for any
Notes  cancelled as provided in this Section,  except as expressly  permitted by
this Indenture.  All cancelled Notes held by the Trustee shall be disposed of as
directed by a Company Order;  provided,  however,  that the Trustee shall not be
required to destroy such cancelled Notes.

                                       29
<PAGE>

         Section 3.10      Computation of Interest.

                  Except as otherwise  specified as contemplated by Section 3.01
for Notes of any series,  interest on the Notes of each series shall be computed
on the basis of a 360-day year of twelve 30-day months.

         Section 3.11      CUSIP Numbers.

                  The Company in issuing  the Notes may use "CUSIP"  numbers (if
then  generally in use),  and, if so, the Trustee  shall use "CUSIP"  numbers in
notices of redemption as a convenience to Holders; provided that any such notice
may state that no  representation  is made as to the correctness of such numbers
either as printed on the Notes or as contained in any notice of a redemption and
that reliance may be placed only on the other identification  numbers printed on
the Notes,  and any such  redemption  shall not be  affected by any defect in or
omission of such numbers.


                                   ARTICLE IV

                           SATISFACTION AND DISCHARGE

         Section 4.01      Satisfaction and Discharge of Indenture.

                  This  Indenture  shall  upon  Company  Request  cease to be of
further effect (except as to any surviving rights of registration of transfer or
exchange of Notes  herein  expressly  provided  for),  and the  Trustee,  at the
expense  of  the  Company,   shall  execute  proper  instruments   acknowledging
satisfaction and discharge of this Indenture, when

                  (1)   either

                        (A)all Notes  theretofore  authenticated  and  delivered
(other than (i) Notes which have been destroyed, lost or stolen and which have
been  replaced  or paid as  provided  in  Section  3.06 and (ii) Notes for whose
payment money has theretofore  been deposited in trust or segregated and held in
trust by the Company and  thereafter  repaid to the Company or  discharged  from
such trust, as provided in Section 10.03) have been delivered to the Trustee for
cancellation; or

                        (B)all  such  Notes  not  theretofore  delivered  to the
Trustee for cancellation

                           (i) have become due and payable, or

                           (ii) will  become  due and  payable  at their  Stated
Maturity within one year, or

                           (iii) are to be called for redemption within one year
under  arrangements  satisfactory  to the  Trustee  for the  giving of notice of
redemption by the Trustee in the name, and at the expense,  of the Company,  and
the Company, in the case of (i), (ii) or (iii) above, has deposited or caused to
be deposited  with the Trustee as trust funds in trust for the purpose of making
the  following  payment,  specifically  pledged as security  for, and  dedicated
solely  to,  the  benefit  of the  Holders  of such  Notes,  money in an  amount
sufficient  to pay and  discharge  the  entire  indebtedness  on such  Notes not
theretofore  delivered to the Trustee for  cancellation,  for  principal and any
premium  and  interest  to the date of such  deposit (in the case of Notes which
have become due and payable) or to the Stated  Maturity or  Redemption  Date, as
the case may be;

                                       30
<PAGE>

                  (2) the  Company  has paid or caused to be paid all other sums
payable hereunder by the Company; and

                  (3) the Company  has  delivered  to the  Trustee an  Officers'
Certificate  and an  Opinion  of  Counsel,  each  stating  that  all  conditions
precedent herein provided for relating to the satisfaction and discharge of this
Indenture have been complied with.

                  Notwithstanding   the   satisfaction  and  discharge  of  this
Indenture, the obligations of the Company to the Trustee under Section 6.07, the
obligations of the Company to any  Authenticating  Agent under Section 6.14 and,
if money shall have been deposited with the Trustee pursuant to subclause (B) of
Clause (1) of this Section,  the  obligations  of the Trustee under Section 4.02
and the last paragraph of Section 10.03 shall survive.

                  If the  Company  shall  have  paid or  caused  to be paid  the
principal of and premium, if any, and interest on any Note, as and when the same
shall have  become due and payable or the Company  shall have  delivered  to the
Trustee  for  cancellation  any  outstanding  Note,  such Note shall cease to be
entitled to any lien or benefit under this Indenture.

         Section 4.02      Application of Trust Money.

                  Subject to the  provisions  of the last  paragraph  of Section
10.03,  all money  deposited with the Trustee  pursuant to Section 4.01 shall be
held in trust and applied by it, in accordance  with the provisions of the Notes
and this Indenture,  to the payment, either directly or through any Paying Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine, to the Persons entitled thereto, of the principal and any premium and
interest for whose payment such money has been deposited with the Trustee.


                                       31
<PAGE>

                                    ARTICLE V

                                    REMEDIES

         Section 5.01      Events of Default.

                  "Event of Default," wherever used herein with respect to Notes
of any series,  means any one of the following  events  (whatever the reason for
such Event of Default and whether it shall be  voluntary  or  involuntary  or be
effected by operation of law or pursuant to any judgment, decree or order of any
court or any order,  rule or regulation of any  administrative  or  governmental
body):

                  (1)  default in the payment of any  interest  upon any Note of
that series when it becomes due and payable, and continuance of such default for
a period of 60 days; or

                  (2) default in the payment of the  principal of or any premium
on any Note of that series at its Maturity; or

                  (3) default in the deposit of any sinking fund  payment,  when
and as due by the terms of a Note of that series; or

                  (4) default in the performance,  or breach, of any covenant or
warranty of the Company in this  Indenture  (other than a covenant or warranty a
default  in whose  performance  or whose  breach is  elsewhere  in this  Section
specifically  dealt with or which has expressly  been included in this Indenture
solely  for the  benefit  of  series  of Notes  other  than  that  series),  and
continuance  of such  default or breach for a period of 90 days after  there has
been given, by registered or certified mail, to the Company by the Trustee or to
the Company and the Trustee by the Holders of a majority in principal  amount of
the Outstanding Notes of that series a written notice specifying such default or
breach and requiring it to be remedied and stating that such notice is a "Notice
of  Default"  hereunder,  unless the  Trustee,  or the  Trustee and Holders of a
principal  amount of Notes of such series not less than the principal  amount of
Notes the Holders of which gave such notice,  as the case may be, shall agree in
writing  to an  extension  of such  period  prior to its  expiration;  provided,
however,  that the  Trustee,  or the Trustee  and the Holders of such  principal
amount  of  Notes,  as the case may be,  shall be  deemed  to have  agreed to an
extension of such period if corrective action is initiated by the Company within
such period and is being diligently pursued; or

                  (5) the entry by a court having  jurisdiction  in the premises
of (A) a decree or order for relief in respect of the Company in an  involuntary
case or proceeding under any applicable Federal or State bankruptcy, insolvency,
reorganization  or other  similar  law or (B) a decree  or order  adjudging  the
Company a bankrupt or  insolvent,  or approving as properly  filed a petition by
one or more persons other than the Company seeking reorganization,  arrangement,
adjustment or  composition  of or in respect of the Company under any applicable
Federal or State law, or appointing a custodian, receiver, liquidator, assignee,
trustee,  sequestrator  or  other  similar  official  of the  Company  or of any
substantial  part of its property,  or ordering the winding up or liquidation of
its affairs,  and the  continuance of any such decree or order for relief or any
such other decree or order unstayed and in effect for a period of 90 consecutive
days; or


                                       32
<PAGE>

                  (6) the  commencement  by the Company of a  voluntary  case or
proceeding  under  any  applicable  Federal  or  State  bankruptcy,  insolvency,
reorganization  or other  similar law or of any other case or  proceeding  to be
adjudicated  a bankrupt  or  insolvent,  or the  consent by it to the entry of a
decree or order for relief in respect of the Company in an  involuntary  case or
proceeding  under  any  applicable  Federal  or  State  bankruptcy,  insolvency,
reorganization  or other similar law or to the commencement of any bankruptcy or
insolvency  case or proceeding  against it, or the filing by it of a petition or
answer or consent seeking  reorganization or relief under any applicable Federal
or State law,  or the  consent by it to the  filing of such  petition  or to the
appointment  of or  taking  possession  by a  custodian,  receiver,  liquidator,
assignee,  trustee,  sequestrator or other similar official of the Company or of
any substantial  part of its property,  or the making by it of an assignment for
the benefit of creditors,  or the admission by it in writing of its inability to
pay its debts generally as they become due, or the  authorization of such action
by the Board of Directors; or

                  (7) any other Event of Default  provided with respect to Notes
of that series.

         Section 5.02      Acceleration of Maturity; Rescission and Annulment.

                  If an Event of Default  with respect to Notes of any series at
the time  Outstanding  occurs  and is  continuing,  then in every  such case the
Trustee or the  Holders of a majority  in  principal  amount of the  Outstanding
Notes of that series may declare the  principal  amount of all the Notes of that
series (or, if any Notes of that series are Original Issue Discount Notes,  such
portion of the  principal  amount of such Notes as may be specified by the terms
thereof)  to be due and  payable  immediately,  by a notice  in  writing  to the
Company (and to the Trustee if given by Holders),  and upon any such declaration
such principal  amount (or specified  amount) shall become  immediately  due and
payable; provided,  however, that if an Event of Default shall have occurred and
be continuing with respect to more than one series of Notes,  the Trustee or the
Holders of not less than a majority in principal amount of the Outstanding Notes
of all such series, considered as one class (and not the Holders of the Notes of
any one of such series), may make such declaration of acceleration.

                  At any time  after such a  declaration  of  acceleration  with
respect to Notes of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article  provided,  the related  Event of Default and its  consequences  will be
automatically waived,  resulting in an automatic rescission and annulment of the
acceleration of the Notes if

                  (1) the Company has paid or  deposited  with the Trustee a sum
sufficient to pay

                        (A)all overdue interest on all Notes of that series,

                        (B)the principal of (and premium,  if any, on) any Notes
         of that series which have become due otherwise than by such declaration
         of  acceleration  and  any  interest  thereon  at  the  rate  or  rates
         prescribed therefor in such Notes,

                        (C)to  the  extent  that  payment  of such  interest  is
         lawful,  interest upon overdue interest at the rate or rates prescribed
         therefor in such Notes, and


                                       33
<PAGE>

                        (D)all amounts due to the Trustee under Section 6.07;
                           and

                  (2) any other Event of Default  with  respect to Notes of that
series,  other than the  non-payment  of the  principal  of Notes of that series
which have  become due solely by such  declaration  of  acceleration,  have been
cured or waived as provided in Section 5.13.

No such  rescission  shall affect any subsequent  Event of Default or impair any
right consequent thereon.

         Section 5.03      Collection of Indebtedness and Suits for Enforcement
                           by Trustee.

                  The Company covenants that if

                  (1) default is made in the payment of any interest on any Note
when such  interest  becomes due and payable and such  default  continues  for a
period of 60 days, or

                  (2)  default is made in the  payment of the  principal  of (or
premium, if any, on) any Note at the Maturity thereof, or

                  (3)  default  is  made  in the  deposit  of any  sinking  fund
payment, when and as due by the terms of a Note of that series,

the Company will, upon demand of the Trustee,  pay to it, for the benefit of the
Holders of such Notes,  the whole  amount then due and payable on such Notes for
principal  and any premium and interest  and, to the extent that payment of such
interest  shall be legally  enforceable,  interest on any overdue  principal and
premium and on any overdue interest, at the rate or rates prescribed therefor in
such Notes, and, in addition thereto, such further amount as shall be sufficient
to cover any amounts due to the Trustee under Section 6.07.

                  If the Company shall fail to pay such amounts  forthwith  upon
such demand,  the Trustee,  in its own name and as trustee of an express  trust,
may institute a judicial  proceeding  for the  collection of the sums so due and
unpaid,  may  prosecute  such  proceeding  to judgment  or final  decree and may
enforce the same  against the Company or any other  obligor  upon such Notes and
collect the moneys  adjudged or decreed to be payable in the manner  provided by
law out of the  property  of the Company or any other  obligor  upon such Notes,
wherever situated.

                  If an Event of  Default  with  respect  to Notes of any series
occurs and is continuing,  the Trustee may in its discretion  proceed to protect
and  enforce its rights and the rights of the Holders of Notes of such series by
such appropriate  judicial  proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights,  whether for the specific enforcement of
any  covenant or  agreement  in this  Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

         Section 5.04      Trustee May File Proofs of Claim.

                  In  case  of the  pendency  of any  receivership,  insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or
other judicial  proceeding relative to the Company or any other obligor upon the
Notes or the property of the Company or such other  obligor or their  creditors,
the Trustee  (irrespective  of whether the  principal of the Notes shall then be
due and  payable  as  therein  expressed  or by  declaration  or  otherwise  and
irrespective  of whether the  Trustee  shall have made any demand on the Company
for the  payment  of  overdue  principal  or  interest)  shall be  entitled  and
empowered, by intervention in such proceeding or otherwise,


                                       34
<PAGE>

                  (a) to file  and  prove  a  claim  for  the  whole  amount  of
         principal,  premium, if any, and interest,  if any, owing and unpaid in
         respect of the Notes and to file such other  papers or documents as may
         be  necessary  or  advisable in order to have the claims of the Trustee
         (including any claim for amounts due to the Trustee under Section 6.07)
         and of the Holders allowed in such judicial proceeding, and

                  (b) to  collect  and  receive  any  moneys  or other  property
         payable or deliverable on any such claims and to distribute the same;

and any custodian,  receiver,  assignee,  trustee,  liquidator,  sequestrator or
other similar official in any such judicial  proceeding is hereby  authorized by
each  Holder to make such  payments  to the  Trustee  and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation,  expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 6.07.

                  No  provision of this  Indenture  shall be deemed to authorize
the  Trustee  to  authorize  or  consent  to or accept or adopt on behalf of any
Holder  any  plan of  reorganization,  arrangement,  adjustment  or  composition
affecting  the Notes or the rights of any Holder  thereof  or to  authorize  the
Trustee to vote in  respect  of the claim of any Holder in any such  proceeding;
provided,  however, that the Trustee may, on behalf of the Holders, vote for the
election of a trustee in  bankruptcy  or similar  official  and be a member of a
creditors' or other similar committee.

         Section 5.05      Trustee May Enforce Claims Without Possession of
                           Notes.

                  All rights of action and claims  under this  Indenture  or the
Notes may be prosecuted  and enforced by the Trustee  without the  possession of
any of the Notes or the production  thereof in any proceeding  relating thereto,
and any such  proceeding  instituted  by the Trustee shall be brought in its own
name as trustee of an express trust,  and any recovery of judgment shall,  after
provision   for  the   payment  of  the   reasonable   compensation,   expenses,
disbursements  and advances of the Trustee,  its agents and counsel,  be for the
ratable  benefit of the  Holders of the Notes in respect of which such  judgment
has been recovered.

         Section 5.06      Application of Money Collected.

                  Any money  collected  by the Trustee  pursuant to this Article
shall be  applied  in the  following  order,  at the date or dates  fixed by the
Trustee and, in case of the  distribution  of such money on account of principal
or any premium or interest,  upon  presentation of the Notes in respect of which
or for the  benefit  of which such  monies  shall  have been  collected  and the
notation  thereon  of the  payment  if only  partially  paid and upon  surrender
thereof if fully paid:


                                       35
<PAGE>

                  FIRST:  To the payment of all  amounts  due the Trustee  under
Section 6.07;

                  SECOND:  To the payment of the amounts then due and unpaid for
principal  of and any premium  and  interest on the Notes in respect of which or
for the  benefit  of which  such  money  has been  collected,  ratably,  without
preference or priority of any kind,  according to the amounts due and payable on
such Notes for principal and any premium and interest, respectively; and

                  THIRD:  To the payment of the balance,  if any, to the Company
or any other Person or Persons legally entitled thereto.

         Section 5.07      Limitation on Suits.

                  No Holder of any Note of any  series  shall  have any right to
institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the  appointment  of a  receiver  or  trustee,  or for any  other  remedy
hereunder, unless

                  (1) such Holder has  previously  given  written  notice to the
Trustee  of a  continuing  Event of  Default  with  respect to the Notes of that
series;

                  (2) the  Holders  of not less  than a  majority  in  aggregate
principal  amount of the Outstanding  Notes of all series in respect of which an
Event of Default shall have occurred and be continuing, considered as one class,
shall have made  written  request to the  Trustee to  institute  proceedings  in
respect of such Event of Default in its own name as Trustee hereunder;

                  (3)  such  Holder  or  Holders  have  offered  to the  Trustee
reasonable indemnity against the costs,  expenses and liabilities to be incurred
in compliance with such request;

                  (4) the Trustee for 60 days after its receipt of such  notice,
request and offer of indemnity has failed to institute any such proceeding; and

                  (5) no direction  inconsistent  with such written  request has
been given to the Trustee during such 60-day period by the Holders of a majority
in aggregate  principal amount of the Outstanding Notes of all series in respect
of which an Event of Default shall have occurred and be  continuing,  considered
as one class;

it being  understood and intended that no one or more of such Holders shall have
any right in any manner  whatever by virtue of, or by availing of, any provision
of this  Indenture to affect,  disturb or  prejudice  the rights of any other of
such Holders,  or to obtain or to seek to obtain priority or preference over any
other of such  Holders or to enforce any right under this  Indenture,  except in
the manner herein  provided and for the equal and ratable benefit of all of such
Holders.

         Section 5.08      Unconditional Right of Holders to Receive Principal,
                           Premium and Interest.

                  Notwithstanding  any other  provision in this  Indenture,  the
Holder of any Note shall have the right, which is absolute and unconditional, to
receive  payment of the  principal  of and any premium  and  (subject to Section
3.07) interest on such Note on the  respective  Stated  Maturities  expressed in
such  Note  (or,  in the case of  redemption,  on the  Redemption  Date)  and to
institute suit for the  enforcement  of any such payment,  and such rights shall
not be impaired without the consent of such Holder.


                                       36
<PAGE>

         Section 5.09      Restoration of Rights and Remedies.

                  If the Trustee or any Holder has  instituted any proceeding to
enforce any right or remedy under this  Indenture and such  proceeding  has been
discontinued or abandoned for any reason,  or has been  determined  adversely to
the  Trustee or to such  Holder,  then and in every  such  case,  subject to any
determination in such proceeding, the Company, the Trustee and such Holder shall
be restored  severally and respectively to their former positions  hereunder and
thereafter all rights and remedies of the Trustee and such Holder shall continue
as though no such proceeding had been instituted.

         Section 5.10      Rights and Remedies Cumulative.

                  Except as otherwise  provided in the last paragraph of Section
3.06, no right or remedy herein  conferred upon or reserved to the Trustee or to
the Holders is intended to be exclusive of any other right or remedy,  and every
right and remedy shall,  to the extent  permitted by law, be  cumulative  and in
addition to every other right and remedy  given  hereunder  or now or  hereafter
existing at law or in equity or  otherwise.  The  assertion or employment of any
right or remedy  hereunder,  or  otherwise,  shall not  prevent  the  concurrent
assertion or employment of any other appropriate right or remedy.

         Section 5.11      Delay or Omission Not Waiver.

                  No delay or  omission  of the  Trustee or of any Holder of any
Notes to exercise any right or remedy  accruing  upon any Event of Default shall
impair  any such  right or remedy or  constitute  a waiver of any such  Event of
Default or an acquiescence therein. Every right and remedy given by this Article
or by law to the Trustee or to the Holders may be  exercised  from time to time,
and as often as may be deemed  expedient,  by the Trustee or by the Holders,  as
the case may be.

         Section 5.12      Control by Holders.

                  If an Event of Default  shall have  occurred and be continuing
in respect of a series of Notes,  the Holders of a majority in principal  amount
of the Outstanding Notes of such series shall have the right to direct the time,
method and place of conducting any  proceeding  for any remedy  available to the
Trustee, or exercising any trust or power conferred on the Trustee, with respect
to the Notes of such  series;  provided,  however,  that if an Event of  Default
shall have  occurred and be  continuing  with respect to more than one series of
Notes,  the  Holders  of  a  majority  in  aggregate  principal  amount  of  the
Outstanding  Notes of all such series,  considered as one class,  shall have the
right to make such  direction,  and not the Holders of the Securities of any one
of such series; and provided, further, that

                  (1) such  direction  shall not be in conflict with any rule of
law or with this Indenture,


                                       37
<PAGE>

                  (2) the Trustee may take any other action deemed proper by the
Trustee which is not inconsistent with such direction, and

                  (3) subject to the  provisions  of Section  6.01,  the Trustee
shall have the right to decline to follow any such  direction  if the Trustee in
good faith shall, by a Responsible Officer or Officers of the Trustee, determine
that the proceeding so directed would involve the Trustee in personal liability.

         Section 5.13      Waiver of Past Defaults.

The Holders of not less than a majority in principal  amount of the  Outstanding
Notes of any series may on behalf of the Holders of all the Notes of such series
waive  any  past  default   hereunder  with  respect  to  such  series  and  its
consequences, except a default

                  (1) in the  payment  of the  principal  of or any  premium  or
                  interest on any Note of such series, or

                  (2) in respect of a covenant or  provision  hereof which under
                  Article IX cannot be modified  or amended  without the consent
                  of  the  Holder  of  each  Outstanding  Note  of  such  series
                  affected,

provided,  however,  that  if  any  such  default  shall  have  occurred  and be
continuing with respect to more than one such series of Notes,  the Holders of a
majority in  aggregate  principal  amount of the  Outstanding  Notes of all such
series, considered as one class, shall have the right to waive such default, and
not the Holders of the Notes of any one such series.

                  Upon any such waiver,  such default shall cease to exist,  and
any and all Events of  Default  arising  therefrom  shall be deemed to have been
cured,  for every purpose of this Indenture;  but no such waiver shall extend to
any subsequent or other default or impair any right consequent thereon.

         Section 5.14      Undertaking for Costs.

                  The Company and the Trustee agree, and each Holder of any Note
by his acceptance thereof shall be deemed to have agreed,  that any court may in
its discretion  require,  in any suit for the enforcement of any right or remedy
under this  Indenture,  or in any suit against the Trustee for any action taken,
suffered or omitted by it as Trustee,  the filing by any party  litigant in such
suit of an undertaking to pay the costs of such suit, and that such court may in
its discretion assess reasonable costs,  including  reasonable  attorneys' fees,
against  any party  litigant  in such suit,  having due regard to the merits and
good  faith of the  claims or  defenses  made by such  party  litigant;  but the
provisions  of this  Section  shall  not  apply  to any suit  instituted  by the
Company,  to any suit  instituted by the Trustee,  to any suit instituted by any
Holder, or group of Holders, holding in the aggregate more than 10% in aggregate
principal amount of the Outstanding Notes of all series in respect of which such
suit may be brought,  considered as one class,  or to any suit instituted by any
Holder for the  enforcement  of the payment of the  principal of or premium,  if
any,  or  interest,  if any,  on any Note on or after  the  Stated  Maturity  or
Maturities  expressed in such Note (or, in the case of  redemption,  on or after
the Redemption Date).

                                       38
<PAGE>

         Section 5.15      Waiver of Stay or Extension Laws.

                  The Company  covenants  (to the extent that it may lawfully do
so)  that it will  not at any time  insist  upon,  or  plead,  or in any  manner
whatsoever  claim or take the benefit or advantage of, any stay or extension law
wherever  enacted,  now or at any time hereafter in force,  which may affect the
covenants or the performance of this  Indenture;  and the Company (to the extent
that it may lawfully do so) hereby  expressly waives all benefit or advantage of
any such  law and  covenants  that it will  not  hinder,  delay  or  impede  the
execution of any power herein granted to the Trustee, but will suffer and permit
the execution of every such power as though no such law had been enacted.


                                   ARTICLE VI

                                   THE TRUSTEE

         Section 6.01      Certain Duties and Responsibilities.


                  (a) Except during the  continuance of an Event of Default with
respect to Notes of any series,


                        (1)the  Trustee  undertakes to perform,  with respect to
Notes of such series,  such duties and only such duties as are  specifically set
forth in this Indenture,  and no implied  covenants or obligations shall be read
into this Indenture against the Trustee; and


                        (2)in the absence of bad faith on its part,  the Trustee
may, with respect to Notes of such series, conclusively rely, as to the truth
of the statements and the correctness of the opinions  expressed  therein,  upon
certificates  or  opinions  furnished  to  the  Trustee  and  conforming  to the
requirements  of this  Indenture;  but in the case of any such  certificates  or
opinions which by any provision hereof are specifically required to be furnished
to the  Trustee,  the  Trustee  shall  be  under a duty to  examine  the same to
determine whether or not they conform to the requirements of this Indenture.


                  (b) In case an Event of Default  with  respect to Notes of any
series shall have occurred and be continuing,  the Trustee shall exercise,  with
respect to Notes of such series,  such of the rights and powers  vested in it by
this Indenture,  and use the same degree of care and skill in their exercise, as
a prudent man would  exercise or use under the  circumstances  in the conduct of
his own affairs.


                  (c) No  provision  of this  Indenture  shall be  construed  to
relieve  the  Trustee  from  liability  for its own  negligent  action,  its own
negligent failure to act, or its own willful misconduct, except that

                                       39
<PAGE>


                        (1)this  clause (c) shall not be  construed to limit the
effect of clause (a) of this Section;


                        (2)the  Trustee  shall  not be  liable  for any error of
judgment made in good faith by a Responsible Officer, unless it shall be proved
that the Trustee was negligent in ascertaining the pertinent facts;


                        (3)the  Trustee  shall not be liable with respect to any
action taken or omitted to be taken by it in good faith in  accordance  with the
direction  of the Holders of a majority in principal  amount of the  Outstanding
Notes of any one or more  series,  as  provided  herein,  relating  to the time,
method and place of conducting any  proceeding  for any remedy  available to the
Trustee, or exercising any trust or power conferred upon the Trustee, under this
Indenture with respect to the Notes of such series; and


                        (4)no  provision  of this  Indenture  shall  require the
Trustee  to  expend  or risk its own  funds or  otherwise  incur  any  financial
liability in the performance of any of its duties hereunder,  or in the exercise
of any of its  rights  or  powers,  if it  shall  have  reasonable  grounds  for
believing that repayment of such funds or adequate  indemnity  against such risk
or liability is not reasonably assured to it.


                  (d)  Whether  or not  therein  expressly  so  provided,  every
provision of this  Indenture  relating to the conduct or affecting the liability
of or affording  protection to the Trustee shall be subject to the provisions of
this Section.

         Section 6.02      Notice of Defaults.

                  If a default  occurs  hereunder  with  respect to Notes of any
series,  the Trustee  shall give the  Holders of Notes of such series  notice of
such  default  known to the  Trustee as and to the extent  provided by the Trust
Indenture  Act;  provided,  however,  that  in the  case of any  default  of the
character  specified in Section 5.01(4) with respect to Notes of such series, no
such  notice  to  Holders  shall be given  until  at  least  75 days  after  the
occurrence  thereof.  For the purpose of this Section,  the term "default" means
any event which is, or after  notice or lapse of time or both would  become,  an
Event of Default with respect to Notes of such series.

         Section 6.03      Certain Rights of Trustee.

                  Subject to the  provisions  of Section 6.01 and to  applicable
provisions of the Trust Indenture Act:

                  (1) the Trustee may rely and shall be  protected  in acting or
refraining from acting upon any resolution,  certificate, statement, instrument,
opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
note,  other evidence of indebtedness or other paper or document  believed by it
to be  genuine  and to have been  signed or  presented  by the  proper  party or
parties;

                                       40
<PAGE>

                  (2) any request or direction of the Company  mentioned  herein
shall be  sufficiently  evidenced by a Company  Request or Company Order,  or as
otherwise  expressly  provided  herein,  and  any  resolution  of the  Board  of
Directors shall be sufficiently evidenced by a Board Resolution;

                  (3)  whenever  in the  administration  of this  Indenture  the
Trustee shall deem it desirable that a matter be proved or established  prior to
taking,  suffering or omitting any action  hereunder,  the Trustee (unless other
evidence be herein specifically  prescribed) may, in the absence of bad faith on
its part, rely upon an Officers' Certificate;

                  (4) the Trustee may consult with counsel of its  selection and
the advice of such counsel or any Opinion of Counsel  shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder in good faith and in reliance thereon;

                  (5) the Trustee  shall be under no  obligation to exercise any
of the  rights  or powers  vested  in it by this  Indenture  at the  request  or
direction  of any Holder  pursuant to this  Indenture,  unless such Holder shall
have offered to the Trustee reasonable  security or indemnity against the costs,
expenses and  liabilities  which might be incurred by it in compliance with such
request or direction;

                  (6) the Trustee  shall not be bound to make any  investigation
into the facts or  matters  stated in any  resolution,  certificate,  statement,
instrument,  opinion, report, notice, request, direction,  consent, order, bond,
debenture,  note, other evidence of indebtedness or other paper or document, but
the Trustee,  in its discretion,  may make such further inquiry or investigation
into  such  facts  or  matters  as it may see fit,  and,  if the  Trustee  shall
determine to make such further  inquiry or  investigation,  it shall (subject to
applicable  legal  requirements)  be entitled to examine the books,  records and
premises of the Company, personally or by agent or attorney;

                  (7) the  Trustee  may  execute  any of the  trusts  or  powers
hereunder  or perform  any duties  hereunder  either  directly  or by or through
agents or attorneys and the Trustee shall not be responsible  for any misconduct
or negligence on the part of any agent or attorney appointed with due care by it
hereunder; and

                  (8)  except as  otherwise  provided  in Section  5.01(4),  the
Trustee shall not be charged with knowledge of any Event of Default with respect
to the Notes of any series for which it is acting as Trustee unless either (i) a
Responsible  Officer of the Trustee shall have actual  knowledge of the Event of
Default,  or (ii) written  notice of such Event of Default shall have been given
to the Trustee by the Company,  any other  obligor on the Notes or by any Holder
of such Notes.

         Section 6.04      Not Responsible for Recitals or Issuance of Notes.

                  The  recitals  contained  herein and in the Notes,  except the
Trustee's  certificates of  authentication,  shall be taken as the statements of
the Company,  and neither the Trustee nor any  Authenticating  Agent assumes any
responsibility for their correctness. The Trustee makes no representations as to
the  validity or  sufficiency  of this  Indenture  or of the Notes.  Neither the
Trustee  nor  any  Authenticating  Agent  shall  be  accountable  for the use or
application by the Company of Notes or the proceeds thereof.

                                       41
<PAGE>

         Section 6.05      May Hold Notes.

                  The Trustee,  any Authenticating  Agent, any Paying Agent, any
Note Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Notes and, subject to Sections 6.08
and 6.13, may otherwise deal with the Company with the same rights it would have
if it were not Trustee,  Authenticating  Agent,  Paying Agent, Note Registrar or
such other agent.

         Section 6.06      Money Held in Trust.

                  Money  held by the  Trustee  in  trust  hereunder  need not be
segregated  from other funds  except to the extent  required by law. The Trustee
shall be under no liability for interest on or investment of any money  received
by it hereunder  except as expressly  provided herein or otherwise  agreed with,
and for the sole benefit of, the Company.

         Section 6.07      Compensation and Reimbursement.

                  The Company agrees

                  (1) to pay to the Trustee from time to time such  compensation
as shall be agreed to in writing  between  the  Company  and the Trustee for all
services  rendered by it hereunder (which  compensation  shall not be limited by
any  provision of law in regard to the  compensation  of a trustee of an express
trust);

                  (2)  except  as  otherwise   expressly   provided  herein,  to
reimburse   the  Trustee   upon  its  request  for  all   reasonable   expenses,
disbursements  and advances  incurred or made by the Trustee in accordance  with
any provision of this Indenture  (including the reasonable  compensation and the
expenses and disbursements of its agents and counsel),  except any such expense,
disbursement  or  advance  as may be  attributable  to its  negligence,  willful
misconduct or bad faith; and

                  (3) to indemnify the Trustee for, and to hold it harmless from
and against,  any and all loss,  damage,  claims,  liability or expense incurred
without negligence,  willful misconduct or bad faith on its part, arising out of
or in connection  with the acceptance or  administration  of the trust or trusts
hereunder,  including  liability  which  the  Trustee  may  incur as a result of
failure to withhold,  pay or report any tax,  assessment  or other  governmental
charges and the costs and  expenses  of  defending  itself  against any claim or
liability in connection with the exercise or performance of any of its powers or
duties hereunder.

                  As security  for the  performance  of the  obligations  of the
Company  under this  Section,  the Trustee  shall have a lien prior to the Notes
upon all property and funds held or collected by the Trustee as such,  except as
otherwise  provided in Sections  4.02 and 13.05.  "Trustee" for purposes of this
Section shall  include any  predecessor  Trustee;  provided,  however,  that the
negligence,  willful  misconduct or bad faith of any Trustee hereunder shall not
affect the rights of any other Trustee hereunder.


                                       42
<PAGE>

                  In addition to the rights provided to the Trustee  pursuant to
the provisions of the immediately preceding paragraph of this Section 6.07, when
the Trustee incurs  expenses or renders  services in connection with an Event of
Default specified in Section 5.01(5) or Section 5.01(6), the expenses (including
the reasonable charges and expenses of its counsel) and the compensation for the
services  are  intended  to  constitute  expenses  of  administration  under any
applicable Federal or State bankruptcy, insolvency or other similar law.

                  The  provisions of this Section shall survive the  termination
of this Indenture.

         Section 6.08      Conflicting Interests.

                  If the Trustee  has or shall  acquire a  conflicting  interest
within  the  meaning  of the Trust  Indenture  Act,  the  Trustee  shall  either
eliminate such conflicting  interest or resign, to the extent, in the manner and
with the effect,  and subject to the conditions  provided in the Trust Indenture
Act and this Indenture.  To the extent  permitted by such Act, the Trustee shall
not be deemed to have a conflicting  interest by virtue of being a trustee under
this Indenture with respect to Notes of more than one series.

         Section 6.09      Corporate Trustee Required; Eligibility.

                  There  shall  at all  times  be one  (and  only  one)  Trustee
hereunder  with  respect  to the  Notes of each  series,  which  may be  Trustee
hereunder for Notes of one or more other series.  Each Trustee shall be a Person
that is eligible  pursuant to the Trust  Indenture  Act to act as such and has a
combined  capital  and  surplus  of at least  $50,000,000.  If any  such  Person
publishes  reports of  condition  at least  annually,  pursuant to law or to the
requirements of its supervising or examining authority, then for the purposes of
this  Section  and to the  extent  permitted  by the Trust  Indenture  Act,  the
combined  capital and surplus of such Person  shall be deemed to be its combined
capital  and  surplus as set forth in its most  recent  report of  condition  so
published.  If at any time the Trustee  with  respect to the Notes of any series
shall cease to be eligible in accordance with the provisions of this Section, it
shall resign immediately in the manner and with the effect hereinafter specified
in this Article.

         Section 6.10      Resignation and Removal; Appointment of Successor.

                  (a)  No   resignation   or  removal  of  the  Trustee  and  no
appointment  of a  successor  Trustee  pursuant  to this  Article  shall  become
effective  until the  acceptance  of  appointment  by the  successor  Trustee in
accordance with the applicable requirements of Section 6.11.

                  (b) The  Trustee  may  resign at any time with  respect to the
Notes of one or more series by giving written notice thereof to the Company.  If
the  instrument of acceptance  by a successor  Trustee  required by Section 6.11
shall not have been  delivered to the Trustee within 30 days after the giving of
such notice of  resignation,  the  resigning  Trustee may  petition any court of
competent  jurisdiction for the appointment of a successor  Trustee with respect
to the Notes of such series.


                                       43
<PAGE>

                  (c) The Trustee may be removed at any time with respect to the
Notes of any series by Act of the Holders of a majority in  principal  amount of
the  Outstanding  Notes of such  series,  delivered  to the  Trustee  and to the
Company.

                  (d) If at any time:

                        (1)the  Trustee  shall fail to comply with  Section 6.08
after  written  request  therefor by the Company or by any Holder who has been a
bona fide Holder of a Note for at least six months, or

                        (2)the  Trustee shall cease to be eligible under Section
6.09 and shall fail to resign after written  request  therefor by the Company or
by any such Holder, or

                        (3)the Trustee shall become incapable of acting or shall
be  adjudged a bankrupt  or  insolvent  or a receiver  of the  Trustee or of its
property  shall be appointed or any public  officer shall take charge or control
of the Trustee or of its property or affairs for the purpose of  rehabilitation,
conservation or liquidation,

then,  in any such case,  (A) the Company by a Board  Resolution  may remove the
Trustee with respect to all Notes,  or (B) subject to Section  5.14,  any Holder
who has been a bona fide Holder of a Note for at least six months may, on behalf
of himself and all others  similarly  situated,  petition any court of competent
jurisdiction  for the removal of the Trustee  with  respect to all Notes and the
appointment of a successor Trustee or Trustees.

                  (e)  If  the  Trustee  shall  resign,  be  removed  or  become
incapable  of acting,  or if a vacancy  shall occur in the office of Trustee for
any cause,  with respect to the Notes of one or more series,  the Company,  by a
Board  Resolution,  shall promptly appoint a successor  Trustee or Trustees with
respect to the Notes of that or those series (it being  understood that any such
successor  Trustee may be appointed  with respect to the Notes of one or more or
all of such  series and that at any time there  shall be only one  Trustee  with
respect  to the  Notes of any  particular  series)  and  shall  comply  with the
applicable  requirements  of  Section  6.11.  If,  within  one year  after  such
resignation,  removal or  incapability,  or the  occurrence of such  vacancy,  a
successor  Trustee with respect to the Notes of any series shall be appointed by
Act of the Holders of a majority in principal amount of the Outstanding Notes of
such series  delivered to the Company and the retiring  Trustee,  the  successor
Trustee so appointed shall, forthwith upon its acceptance of such appointment in
accordance  with  the  applicable  requirements  of  Section  6.11,  become  the
successor  Trustee  with  respect to the Notes of such series and to that extent
supersede  the  successor  Trustee  appointed  by the  Company.  If no successor
Trustee  with respect to the Notes of any series shall have been so appointed by
the Company or the Holders and accepted  appointment  in the manner  required by
Section  6.11,  any  Holder  who has been a bona  fide  Holder of a Note of such
series  for at least  six  months  may,  on  behalf of  himself  and all  others
similarly  situated,  petition  any  court  of  competent  jurisdiction  for the
appointment of a successor Trustee with respect to the Notes of such series.

                  (f) So long as no event which is, or after  notice or lapse of
time,  or both,  would  become,  an Event of Default  shall have occurred and be
continuing, and except with respect to a Trustee appointed by Act of the Holders
of a  majority  in  principal  amount  of  the  Outstanding  Notes  pursuant  to
subsection  (e) of this  Section,  if the Company  shall have  delivered  to the
Trustee (1) a Board Resolution appointing a successor Trustee, effective as of a
date specified therein, and (2) an instrument of acceptance of such appointment,
effective as of such date, by such successor  Trustee in accordance with Section
6.11, the Trustee shall be deemed to have resigned as contemplated in subsection
(b) of this  Section,  the  successor  Trustee  shall  be  deemed  to have  been
appointed  by the Company  pursuant to  subsection  (e) of this Section and such
appointment  shall be deemed to have been  accepted as  contemplated  in Section
6.11, all as of such date, and all other  provisions of this Section and Section
6.11 shall be applicable to such resignation,  appointment and acceptance except
to the extent inconsistent with this clause (f).


                                       44
<PAGE>

                  (g) The Company shall give notice of each resignation and each
removal  of the  Trustee  with  respect  to the  Notes  of any  series  and each
appointment  of a successor  Trustee  with respect to the Notes of any series to
all Holders of Notes of such series in the manner provided in Section 1.06. Each
notice shall include the name of the successor Trustee with respect to the Notes
of such series and the address of its Corporate Trust Office.

         Section 6.11      Acceptance of Appointment by Successor.

                  (a)  In  case  of the  appointment  hereunder  of a  successor
Trustee with  respect to all Notes,  every such  successor  Trustee so appointed
shall  execute,  acknowledge  and  deliver to the  Company  and to the  retiring
Trustee an instrument accepting such appointment,  and thereupon the resignation
or removal of the retiring  Trustee shall become  effective  and such  successor
Trustee,  without any further act, deed or conveyance,  shall become vested with
all the rights,  powers,  trusts and duties of the retiring Trustee, but, on the
request of the Company or the successor  Trustee,  such retiring  Trustee shall,
upon payment of its charges,  execute and deliver an instrument  transferring to
such successor Trustee all the rights, powers and trusts of the retiring Trustee
and shall duly  assign,  transfer  and  deliver to such  successor  Trustee  all
property and money held by such retiring Trustee hereunder.

                  (b)  In  case  of the  appointment  hereunder  of a  successor
Trustee  with  respect  to the  Notes of one or more (but not all)  series,  the
Company,  the retiring  Trustee and each  successor  Trustee with respect to the
Notes of one or more series shall execute and deliver an indenture  supplemental
hereto wherein each successor  Trustee shall accept such  appointment  and which
(1) shall contain such provisions as shall be necessary or desirable to transfer
and confirm to, and to vest in, each successor  Trustee all the rights,  powers,
trusts and duties of the  retiring  Trustee with respect to the Notes of that or
those series to which the appointment of such successor Trustee relates,  (2) if
the retiring  Trustee is not retiring  with respect to all Notes,  shall contain
such  provisions  as shall be deemed  necessary or desirable to confirm that all
the rights,  powers,  trusts and duties of the retiring  Trustee with respect to
the  Notes of that or those  series  as to which  the  retiring  Trustee  is not
retiring shall continue to be vested in the retiring Trustee,  and (3) shall add
to or change any of the  provisions  of this  Indenture as shall be necessary to
provide for or facilitate  the  administration  of the trusts  hereunder by more
than  one  Trustee,   it  being  understood  that  nothing  herein  or  in  such
supplemental  indenture shall  constitute such Trustees  co-trustees of the same
trust and that each such Trustee shall be trustee of a trust or trusts hereunder
separate and apart from any trust or trusts hereunder  administered by any other
such Trustee; and upon the execution and delivery of such supplemental indenture
the resignation or removal of the retiring Trustee shall become effective to the
extent  provided  therein and each such successor  Trustee,  without any further
act, deed or conveyance, shall become vested with all the rights, powers, trusts
and duties of the  retiring  Trustee  with respect to the Notes of that or those
series to which the  appointment  of such  successor  Trustee  relates;  but, on
request of the Company or any successor  Trustee,  such  retiring  Trustee shall
duly  assign,  transfer and deliver to such  successor  Trustee all property and
money held by such retiring Trustee  hereunder with respect to the Notes of that
or those series to which the appointment of such successor Trustee relates.


                                       45
<PAGE>

                  (c) Upon request of any such  successor  Trustee,  the Company
shall execute any and all  instruments  for more fully and certainly  vesting in
and  confirming  to such  successor  Trustee all such rights,  powers and trusts
referred to in clause (a) or (b) of this Section, as the case may be.

                  (d) No successor  Trustee shall accept its appointment  unless
at the time of such  acceptance  such  successor  Trustee shall be qualified and
eligible under this Article.

         Section 6.12      Merger, Conversion, Consolidation or Succession to
                           Business.

                  Any  corporation  into  which  the  Trustee  may be  merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion  or  consolidation  to which the Trustee shall be a
party, or any corporation  succeeding to all or substantially  all the corporate
trust business of the Trustee,  shall be the successor of the Trustee hereunder,
provided such corporation  shall be otherwise  qualified and eligible under this
Article,  without the execution or filing of any paper or any further act on the
part  of  any  of the  parties  hereto.  In  case  any  Notes  shall  have  been
authenticated,  but not delivered,  by the Trustee then in office, any successor
by merger,  conversion or consolidation to such authenticating Trustee may adopt
such  authentication and deliver the Notes so authenticated with the same effect
as if such successor Trustee had itself authenticated such Notes.

         Section 6.13      Preferential Collection of Claims Against Company.

                  If the Trustee shall be or become a creditor of the Company or
any other  obligor  upon the  Notes  (other  than by  reason  of a  relationship
described in Section 311(b) of the Trustee  Indenture Act), the Trustee shall be
subject  to any  and  all  applicable  provisions  of the  Trust  Indenture  Act
regarding the  collection of claims  against the Company or such other  obligor.
For purposes of Section 311(b) of the Trust Indenture Act:

                  (a) the term "cash transaction" means any transaction in which
         full  payment for goods or  securities  sold is made within  seven days
         after  delivery of the goods or  securities in currency or in checks or
         other orders drawn upon banks or bankers and payable upon demand;

                  (b) the term "self-liquidating paper" means any draft, bill of
         exchange,  acceptance or obligation which is made, drawn, negotiated or
         incurred  by the Company for the  purpose of  financing  the  purchase,
         processing, manufacturing, shipment, storage or sale of goods, wares or
         merchandise  and which is secured  by  documents  evidencing  title to,
         possession of, or a lien upon,  the goods,  wares or merchandise or the
         receivables  or proceeds  arising from the sale of the goods,  wares or
         merchandise previously constituting the security, provided the security
         is  received  by the Trustee  simultaneously  with the  creation of the
         creditor  relationship  with  the  Company  arising  from  the  making,
         drawing,  negotiating  or  incurring  of the draft,  bill of  exchange,
         acceptance or obligation.

                                       46
<PAGE>



         Section 6.14      Appointment of Authenticating Agent.

                  The Trustee may appoint an Authenticating Agent or Agents with
respect  to one or more  series of Notes  which  shall be  authorized  to act on
behalf of the Trustee to authenticate Notes of such series issued upon exchange,
registration  of transfer or partial  redemption  thereof or pursuant to Section
3.06,  and Notes so  authenticated  shall be  entitled  to the  benefits of this
Indenture and shall be valid and obligatory for all purposes as if authenticated
by the Trustee  hereunder.  Wherever  reference is made in this Indenture to the
authentication and delivery of Notes by the Trustee or the Trustee's certificate
of authentication,  such reference shall be deemed to include authentication and
delivery on behalf of the Trustee by an  Authenticating  Agent and a certificate
of authentication  executed on behalf of the Trustee by an Authenticating Agent.
Each  Authenticating  Agent shall be  acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the United
States of America,  any State  thereof or the District of  Columbia,  authorized
under such laws to act as  Authenticating  Agent,  having a combined capital and
surplus of not less than  $50,000,000  and subject to supervision or examination
by Federal or State authority. If such Authenticating Agent publishes reports of
condition  at least  annually,  pursuant to law or to the  requirements  of said
supervising or examining  authority,  then for the purposes of this Section, the
combined capital and surplus of such Authenticating  Agent shall be deemed to be
its  combined  capital  and  surplus as set forth in its most  recent  report of
condition so published. If at any time an Authenticating Agent shall cease to be
eligible in accordance with the provisions of this Section,  such Authenticating
Agent shall resign  immediately  in the manner and with the effect  specified in
this Section.

                  Any  corporation  into  which an  Authenticating  Agent may be
merged or converted  or with which it may be  consolidated,  or any  corporation
resulting  from  any  merger,   conversion  or   consolidation   to  which  such
Authenticating  Agent shall be a party,  or any  corporation  succeeding  to the
corporate agency or corporate trust business of an Authenticating  Agent,  shall
continue to be an  Authenticating  Agent,  provided  such  corporation  shall be
otherwise  eligible  under this Section,  without the execution or filing of any
paper or any further act on the part of the Trustee or the Authenticating Agent.

                  An  Authenticating  Agent  may  resign  at any time by  giving
written notice thereof to the Trustee and to the Company. The Trustee may at any
time  terminate the agency of an  Authenticating  Agent by giving written notice
thereof to such Authenticating  Agent and to the Company.  Upon receiving such a
notice of resignation  or upon such a  termination,  or in case at any time such
Authenticating  Agent  shall  cease  to  be  eligible  in  accordance  with  the
provisions of this Section,  the Trustee may appoint a successor  Authenticating
Agent  which  shall be  acceptable  to the Company and shall give notice of such
appointment  in the manner  provided in Section  1.06 to all Holders of Notes of
the series  with  respect to which such  Authenticating  Agent will  serve.  Any
successor  Authenticating  Agent upon  acceptance of its  appointment  hereunder
shall become  vested with all the rights,  powers and duties of its  predecessor
hereunder,  with like effect as if originally named as an Authenticating  Agent.
No successor  Authenticating  Agent shall be appointed unless eligible under the
provisions of this Section.


                                       47
<PAGE>

                  The Company  agrees to pay to each  Authenticating  Agent from
time to time reasonable  compensation for its services under this Section and to
reimburse  such  Authenticating  Agent,  from time to time,  for its  reasonable
out-of-pocket expenses incurred under this Section.

                  If an  appointment  with respect to one or more series is made
pursuant to this Section, the Notes of such series may have endorsed thereon, in
addition  to  the  Trustee's  certificate  of  authentication,   an  alternative
certificate of authentication in the following form:

                  This is one of the  Notes  of the  series  designated  therein
referred to in the within-mentioned Indenture.

Dated:                           [______________________,
                                   As Trustee


                                   By.........................................
                                            Authenticating Agent

                                   By.........................................
                                            Authorized Officer


                                       48
<PAGE>





                                   ARTICLE VII

                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

         Section 7.01      Company to Furnish Trustee Names and Addresses of
                           Holders.

                  The  Company  will  furnish  or cause to be  furnished  to the
Trustee

                  (1) fifteen  days after each Regular  Record Date, a list,  in
such form as the Trustee may reasonably  require,  of the names and addresses of
the Holders of Notes of each series as of such Regular Record Date, and

                  (2) at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Company of any such  request,  a list of
similar  form and  content  as of a date not more than 15 days prior to the time
such list is furnished;

excluding from any such list names and addresses  received by the Trustee in its
capacity as Note Registrar.

         Section 7.02      Preservation of Information; Communications to
                           Holders.

                  The  Trustee  shall  preserve,  in as  current  a  form  as is
reasonably practicable, the names and addresses of Holders contained in the most
recent list  furnished  to the Trustee as provided in Section 7.01 and the names
and  addresses  of  Holders  received  by the  Trustee in its  capacity  as Note
Registrar.  The  Trustee may  destroy  any list  furnished  to it as provided in
Section 7.01 upon receipt of a new list so furnished.

                  The rights of Holders to  communicate  with other Holders with
respect  to their  rights  under  this  Indenture  or under the  Notes,  and the
corresponding rights and privileges of the Trustee,  shall be as provided by the
Trust Indenture Act.

                  Every  Holder of Notes,  by  receiving  and  holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any  agent of  either  of them  shall be held  accountable  by reason of any
disclosure of  information as to names and addresses of Holders made pursuant to
the Trust Indenture Act.

         Section 7.03      Reports by Trustee.

                  The Trustee shall transmit to Holders such reports  concerning
the Trustee and its actions under this Indenture as may be required  pursuant to
the  Trust  Indenture  Act at the  times  and in the  manner  provided  pursuant
thereto.  If required by Section 313(a) of the Trust  Indenture Act, the Trustee
shall,  within sixty days after each May 15 following the date of this Indenture
deliver to Holders a brief report,  dated as of such May 15, which complies with
the provisions of such Section 313(a).


                                       49
<PAGE>

                  A copy  of  each  such  report  shall,  at the  time  of  such
transmission  to Holders,  be filed by the Trustee with each stock exchange upon
which  any Notes are  listed,  with the  Commission  and with the  Company.  The
Company will promptly  notify the Trustee when any Notes are listed on any stock
exchange.

         Section 7.04      Reports by Company.

                  The Company  shall file with the  Trustee and the  Commission,
and transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at the
times and in the manner  provided  pursuant to such Act;  provided that any such
information,  documents  or reports  required  to be filed  with the  Commission
pursuant  to  Section  13 or 15(d) of the  Exchange  Act shall be filed with the
Trustee  within  15 days  after  the same is so  required  to be filed  with the
Commission.

                  Delivery  of such  information,  documents  and reports to the
Trustee is for  informational  purposes only and the  Trustee's  receipt of such
shall not constitute constructive notice of any information contained therein or
determinable  from  information  contained  therein,   including  the  Company's
compliance  with any of its  covenants  hereunder  (as to which the  Trustee  is
entitled to rely exclusively on Officers' Certificates).


                                  ARTICLE VIII

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

         Section 8.01      Company May Consolidate, Etc., Only on Certain Terms.

                  The Company shall not consolidate with or merge into any other
Person or convey,  transfer or lease its properties and assets  substantially as
an entirety to any Person, unless:

                  (1) the Person formed by such  consolidation or into which the
Company is merged or the Person which  acquires by  conveyance  or transfer,  or
which  leases,  the  properties  and assets of the Company  substantially  as an
entirety shall be a Person  organized and validly existing under the laws of the
United  States of America,  any State  thereof or the  District of Columbia  and
shall  expressly  assume,  by an  indenture  supplemental  hereto,  executed and
delivered  to the Trustee,  in form  satisfactory  to the  Trustee,  the due and
punctual  payment of the  principal of and any premium,  and interest on all the
Notes and the  performance  or observance of every covenant of this Indenture on
the part of the Company to be performed or observed;

                  (2)  immediately  after giving effect to such  transaction and
treating any indebtedness which becomes an obligation of the Company as a result
of such  transaction  as having been incurred by the Company at the time of such
transaction,  no Event of Default,  and no event which, after notice or lapse of
time or both,  would  become an Event of  Default,  shall have  happened  and be
continuing; and

                  (3)  the  Company  shall  have  delivered  to the  Trustee  an
Officers'  Certificate  and an  Opinion  of  Counsel,  each  stating  that  such
consolidation,  merger,  conveyance,  transfer  or lease  and such  supplemental
indenture  comply with this  Article and that all  conditions  precedent  herein
provided for relating to such transaction have been complied with.


                                       50
<PAGE>

         Section 8.02      Successor Substituted.

                  Upon any  consolidation  of the Company with, or merger of the
Company  into,  any other  Person or any  conveyance,  transfer  or lease of the
properties and assets of the Company  substantially as an entirety in accordance
with Section 8.01,  the successor  Person formed by such  consolidation  or into
which the  Company is merged or to which such  conveyance,  transfer or lease is
made shall succeed to, and be substituted  for, and may exercise every right and
power of, the  Company  under  this  Indenture  with the same  effect as if such
successor Person had been named as the Company herein, and thereafter, except in
the case of a lease, the predecessor Person shall be relieved of all obligations
and covenants under this Indenture and the Notes outstanding hereunder.


                                   ARTICLE IX

                             SUPPLEMENTAL INDENTURES

         Section 9.01      Supplemental Indentures Without Consent of Holders.

                  Without  the  consent  of  any  Holders,  the  Company,   when
authorized by a Board Resolution,  and the Trustee, at any time and from time to
time,  may  enter  into  one or more  indentures  supplemental  hereto,  in form
satisfactory to the Trustee, for any of the following purposes:

                  (1) to  evidence  the  succession  of  another  Person  to the
Company and the assumption by any such successor of the covenants of the Company
herein and in the Notes, all as provided in Article VIII; or

                  (2) to add to the covenants of the Company or other provisions
for the  benefit  of the  Holders  of all or any  series  of Notes  (and if such
covenants  are to be for the  benefit of less than all series of Notes,  stating
that such covenants are expressly  being included solely for the benefit of such
series) or to surrender any right or power herein conferred upon the Company; or

                  (3) to add any additional Events of Default for the benefit of
the  Holders  of all or any series of Notes  (and if such  additional  Events of
Default are to be for the benefit of less than all series of Notes, stating that
such  additional  Events of Default are expressly  being included solely for the
benefit of such series); or

                  (4)  to add  to or  change  any  of  the  provisions  of  this
Indenture  to such  extent as shall be  necessary  to permit or  facilitate  the
issuance  of  Notes  in  bearer  form,  registrable  or  not  registrable  as to
principal,  and with or without interest coupons, or to permit or facilitate the
issuance of Notes in uncertificated form; or

                  (5) to change or eliminate any provision of this  Indenture or
to add any new  provision to this  Indenture;  provided,  however,  that if such
change,  elimination  or addition  shall  adversely  affect the interests of the
Holders  of  Notes  of any  series  Outstanding  on the  date of such  indenture
supplemental  hereto  in any  material  respect,  such  change,  elimination  or
addition shall become effective (1) with respect to such series only pursuant to
the provisions of Section 9.02 hereof or (2) when no Note of such series remains
Outstanding; or


                                       51
<PAGE>

                  (6)  to secure the Notes; or

                  (7) to  establish  the form or terms of Notes of any series as
permitted by Sections 2.01 and 3.01; or

                  (8) to evidence and provide for the  acceptance of appointment
hereunder by a successor Trustee with respect to the Notes of one or more series
and to add to or change  any of the  provisions  of this  Indenture  as shall be
necessary  to  provide  for or  facilitate  the  administration  of  the  trusts
hereunder  by more than one  Trustee,  pursuant to the  requirements  of Section
6.11; or

                  (9) to cure  any  ambiguity,  to  correct  or  supplement  any
provision herein which may be defective or inconsistent with any other provision
herein,  or to make any other changes to the  provisions  hereof or to add other
provisions  with respect to matters or questions  arising under this  Indenture,
provided  that such other changes or additions  shall not  adversely  affect the
interests of the Holders of Notes of any series in any material respect.

                  Without limiting the generality of the foregoing, if the Trust
Indenture Act as in effect at the date specified in the first  paragraph of this
instrument or at any time thereafter shall be amended and

                  (x) if any such amendment shall require one or more changes to
         any  provisions  hereof  or the  inclusion  herein  of  any  additional
         provisions,  or shall by  operation  of law be deemed  to  effect  such
         changes or incorporate such provisions by reference or otherwise,  this
         Indenture shall be deemed to have been amended so as to conform to such
         amendment to the Trust  Indenture  Act, and the Company and the Trustee
         may,  without  the  consent of any  Holders,  enter  into an  indenture
         supplemental  hereto to effect or evidence  such changes or  additional
         provisions; or

                  (y) if any such amendment shall permit one or more changes to,
         or the elimination of, any provisions  hereof which, at the date of the
         execution and delivery hereof or at any time  thereafter,  are required
         by the Trust Indenture Act to be contained herein, this Indenture shall
         be deemed to have been amended to effect such  changes or  elimination,
         and the  Company  and the  Trustee  may,  without  the  consent  of any
         Holders,  enter into an indenture  supplemental hereto to evidence such
         amendment hereof.


                                       52
<PAGE>

         Section 9.02      Supplemental Indentures With Consent of Holders.

                  With the consent of the Holders of not less than a majority in
aggregate  principal  amount of the Notes of all series then  Outstanding  under
this Indenture, considered as one class, by Act of said Holders delivered to the
Company and the Trustee, the Company, when authorized by a Board Resolution, and
the Trustee may enter into an indenture or  indentures  supplemental  hereto for
the  purpose  of  adding  any  provisions  to,  or  changing  in any  manner  or
eliminating any of the provisions of, this Indenture; provided, however, that if
there  shall be Notes of more than one  series  Outstanding  hereunder  and if a
proposed supplemental  indenture shall directly affect the rights of the Holders
of Notes of one or more,  but less than all,  of such  series,  then the consent
only  of  the  Holders  of a  majority  in  aggregate  principal  amount  of the
Outstanding Notes of all series so directly  affected,  considered as one class,
shall be required;  and provided,  further, that no such supplemental  indenture
shall:

                  (1) change the Stated  Maturity  of the  principal  of, or any
installment  of principal of or interest on, any Note,  or reduce the  principal
amount thereof or the rate of interest thereon (or the amount of any installment
of interest thereon) or change the method of calculating such rate or reduce any
premium  payable  upon the  redemption  thereof,  or  reduce  the  amount of the
principal of an Original  Issue  Discount  Note or any other Note which would be
due and payable upon a  declaration  of  acceleration  of the  Maturity  thereof
pursuant to Section 5.02, or change the coin or currency (or other  property) in
which any Note or any  premium or  interest  thereon is  payable,  or impair the
right to institute suit for the  enforcement of any such payment on or after the
Stated  Maturity  thereof  (or,  in the  case of  redemption,  on or  after  the
Redemption Date),  without,  in any such case, the consent of the Holder of such
Note, or

                  (2)  reduce  the   percentage  in  principal   amount  of  the
Outstanding  Notes of any series,  the consent of whose  Holders is required for
any such supplemental indenture, or the consent of whose Holders is required for
any waiver of compliance  with any provision of this Indenture or of any default
hereunder and its consequences,  or reduce the requirements of Section 14.04 for
quorum or voting,  without,  in any such case, the consent of the Holder of such
Note, or

                  (3) modify any of the provisions of this Section, Section 5.13
or Section 10.08 with respect to the Notes of any series, except to increase any
such  percentage or to provide that certain other  provisions of this  Indenture
cannot  be  modified  or  waived  without  the  consent  of the  Holder  of each
Outstanding Note affected thereby; provided, however, that this clause shall not
be deemed to require the  consent of any Holder  with  respect to changes in the
references to "the Trustee" and concomitant  changes in this Section and Section
10.08, or the deletion of this proviso,  in accordance with the  requirements of
Sections 6.11 and 9.01(8).

                  A  supplemental  indenture  which  changes or  eliminates  any
covenant or other  provision of this Indenture which has expressly been included
solely  for the  benefit  of one or more  particular  series of Notes,  or which
modifies  the rights of the Holders of Notes of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Notes of any other series.


                                       53
<PAGE>

                  It shall not be  necessary  for any Act of Holders  under this
Section to approve the particular form of any proposed  supplemental  indenture,
but it shall be sufficient if such Act shall  approve the substance  thereof.  A
waiver by a Holder of such Holder's right to consent under this Section shall be
deemed to be a consent of such Holder.

         Section 9.03      Execution of Supplemental Indentures.

                  In executing,  or accepting the additional  trusts created by,
any  supplemental  indenture  permitted  by this  Article  or the  modifications
thereby of the trusts created by this  Indenture,  the Trustee shall be entitled
to receive,  and (subject to Section  6.01) shall be fully  protected in relying
upon,  an Opinion of Counsel  stating that the  execution  of such  supplemental
indenture is  authorized  or permitted by this  Indenture.  The Trustee may, but
shall not be obligated  to,  enter into any such  supplemental  indenture  which
affects the Trustee's own rights,  duties or immunities  under this Indenture or
otherwise.

                  Any  supplemental  indenture  permitted by this Article may be
executed  on  behalf  of the  Company  by any  officers  or  employees  that are
authorized  to do so in a Board  Resolution,  under its  corporate  seal affixed
thereto  or  reproduced  thereon  attested  to by  its  Secretary  or one of its
Assistant Secretaries.

         Section 9.04      Effect of Supplemental Indentures.

                  Upon the execution of any  supplemental  indenture  under this
Article,  this  Indenture  shall be modified in accordance  therewith,  and such
supplemental indenture shall form a part of this Indenture for all purposes; and
every Holder of Notes  theretofore  or  thereafter  authenticated  and delivered
hereunder shall be bound thereby.  Any supplemental  indenture permitted by this
Article may restate this Indenture in its entirety,  and, upon the execution and
delivery  thereof,  any such  restatement  shall  supersede  this  Indenture  as
theretofore in effect for all purposes.

         Section 9.05      Conformity with Trust Indenture Act.

                  Every supplemental indenture executed pursuant to this Article
shall conform to the requirements of the Trust Indenture Act.

         Section 9.06      Reference in Notes to Supplemental Indentures.

                  Notes of any  series  authenticated  and  delivered  after the
execution of any supplemental  indenture pursuant to this Article may, and shall
if required by the Trustee,  bear a notation in form  approved by the Trustee as
to any matter provided for in such supplemental  indenture. If the Company shall
so determine,  new Notes of any series so modified as to conform, in the opinion
of the  Trustee  and the  Company,  to any such  supplemental  indenture  may be
prepared  and  executed by the Company and  authenticated  and  delivered by the
Trustee in exchange for Outstanding Notes of such series.

                                       54
<PAGE>


                                    ARTICLE X

                                    COVENANTS

         Section 10.01     Payment of Principal, Premium and Interest.

                  The  Company  covenants  and  agrees  for the  benefit of each
series of Notes that it will duly and  punctually  pay the  principal of and any
premium and interest on the Notes of that series in accordance with the terms of
the Notes and this Indenture.

         Section 10.02     Maintenance of Office or Agency.

                  The  Company  will  maintain  in each Place of Payment for any
series of Notes an office or agency  where Notes of that series may be presented
or surrendered  for payment,  where Notes of that series may be surrendered  for
registration  of transfer or exchange  and where  notices and demands to or upon
the  Company in respect of the Notes of that  series and this  Indenture  may be
served.  The  Company  will give  prompt  written  notice to the  Trustee of the
location,  and any change in the location,  of such office or agency.  If at any
time the Company  shall fail to maintain any such  required  office or agency or
shall fail to furnish the Trustee with the address thereof,  such presentations,
surrenders,  notices and demands  may be made or served at the  Corporate  Trust
Office of the Trustee,  and the Company hereby appoints the Trustee as its agent
to receive all such presentations, surrenders, notices and demands.

                  The Company may also from time to time  designate  one or more
other offices or agencies where the Notes of one or more series may be presented
or  surrendered  for any or all such  purposes and may from time to time rescind
such  designations;  provided,  however,  that no such designation or rescission
shall in any manner  relieve the Company of its obligation to maintain an office
or agency in each  Place of Payment  for Notes of any series for such  purposes.
The Company will give prompt  written  notice to the Trustee , and prompt notice
to Holders in the manner  specified in Section 1.06, of any such  designation or
rescission and of any change in the location of any such other office or agency.

         Section 10.03     Money for Notes Payments to Be Held in Trust.

                  If the Company  shall at any time act as its own Paying  Agent
with respect to any series of Notes,  it will, on or before each due date of the
principal  of or any  premium or  interest  on any of the Notes of that  series,
segregate  and hold in trust for the benefit of the Persons  entitled  thereto a
sum sufficient to pay the principal and any premium and interest so becoming due
until such sums shall be paid to such Persons or otherwise disposed of as herein
provided  and will  promptly  notify the  Trustee of its action or failure so to
act.

                  Whenever the Company  shall have one or more Paying Agents for
any series of Notes,  it will,  on or prior to each due date of the principal of
or any premium or interest on any Notes of that  series,  deposit  with a Paying
Agent a sum  sufficient  to pay such amount,  such sum to be held as provided by
the Trust  Indenture  Act,  and (unless  such Paying  Agent is the  Trustee) the
Company will promptly notify the Trustee of its action or failure so to act.


                                       55
<PAGE>

                  The  Company  will cause each  Paying  Agent for any series of
Notes other than the Trustee to execute and deliver to the Trustee an instrument
in which  such  Paying  Agent  shall  agree  with the  Trustee,  subject  to the
provisions  of this  Section,  that such  Paying  Agent will (1) comply with the
provisions of the Trust Indenture Act applicable to it as a Paying Agent and (2)
during the  continuance of any default by the Company (or any other obligor upon
the Notes of that  series) in the making of any  payment in respect of the Notes
of that series,  upon the written  request of the Trustee,  forthwith pay to the
Trustee  all sums held in trust by such  Paying  Agent for payment in respect of
the Notes of that series.

                  The Company may at any time,  for the purpose of obtaining the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
upon the same  trusts as those upon which such sums were held by the  Company or
such Paying  Agent;  and,  upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further  liability  with respect to
such money.

                  Any money  deposited with the Trustee or any Paying Agent,  or
then held by the  Company,  in trust for the payment of the  principal of or any
premium or interest on any Note of any series and  remaining  unclaimed  for two
years after such principal, premium or interest has become due and payable shall
be paid to the  Company on  Company  Request,  or (if then held by the  Company)
shall  be  discharged  from  such  trust;  and the  Holder  of such  Note  shall
thereafter,  as an  unsecured  general  creditor,  look only to the  Company for
payment  thereof,  and all  liability  of the Trustee or such Paying  Agent with
respect  to such  trust  money,  and all  liability  of the  Company  as trustee
thereof,  shall thereupon  cease;  provided,  however,  that the Trustee or such
Paying  Agent,  before  being  required to make any such  repayment,  may at the
expense of the Company cause to be published  once, in a newspaper  published in
the English language,  customarily published on each Business Day and of general
circulation in the Borough of Manhattan,  The City of New York, New York, notice
that such money remains  unclaimed  and that,  after a date  specified  therein,
which  shall  not be less than 30 days  from the date of such  publication,  any
unclaimed balance of such money then remaining will be repaid to the Company.

         Section 10.04     Statement by Officers as to Default.

                  The Company will deliver to the Trustee, within 120 days after
the end of each fiscal  year of the Company  ending  after the date  hereof,  an
Officers'  Certificate,  stating  whether  or not to the best  knowledge  of the
signers  thereof the Company is in default in the  performance and observance of
any of the terms, provisions and conditions of this Indenture (without regard to
any period of grace or requirement  of notice  provided  hereunder)  and, if the
Company  shall be in default,  specifying  all such  defaults and the nature and
status thereof of which they may have knowledge.

         Section 10.05     Restrictions on Liens.

                  (a) So long as any Notes are Outstanding, the Company will not
issue, assume, or guarantee any Debt secured by any mortgage, security interest,
pledge,  or lien (herein  referred to as a "mortgage")  of or upon any Operating
Property  of the  Company,  whether  owned at the date  specified  in the  first
paragraph of this  instrument or thereafter  acquired,  without in any such case
effectively  securing the Outstanding Notes (together with, if the Company shall
so determine,  any other Debt of or guaranteed by the Company ranking senior to,
or equally  with,  the Notes)  equally  and  ratably  with such Debt;  provided,
however,  that the foregoing  restriction shall not apply to Debt secured by any
of the following:


                                       56
<PAGE>

                            (i)  mortgages on any property  existing at the time
of acquisition thereof;

                           (ii) mortgages on property of a corporation  existing
at the time such corporation is merged into or consolidated with the
Company, or at the time of a sale, lease, or other disposition of the properties
of such  corporation or a division thereof as an entirety or substantially as an
entirety to the Company, provided that such mortgage as a result of such merger,
consolidation,  sale,  lease,  or other  disposition is not extended to property
owned by the Company immediately prior thereto;

                           (iii)  mortgages on property to secure all or part of
the cost of acquiring, constructing, developing, or substantially
repairing,  altering,  or improving  such  property,  or to secure  indebtedness
incurred to provide  funds for any such  purpose or for  reimbursement  of funds
previously expended for any such purpose, provided such mortgages are created or
assumed  contemporaneously  with, or within  eighteen  (18) months  after,  such
acquisition or completion of construction,  development,  or substantial repair,
alteration,  or  improvement or within six (6) months  thereafter  pursuant to a
commitment for financing arranged with a lender or investor within such eighteen
(18) month period;

                           (iv)  mortgages  in favor  of the  United  States  of
America or any State thereof, or any department, agency, or instrumentality or
political  subdivision of the United States of America or any State thereof,  or
for the benefit of holders of  securities  issued by any such entity,  to secure
any Debt  incurred for the purpose of financing  all or any part of the purchase
price or the  cost of  constructing,  developing,  or  substantially  repairing,
altering, or improving the property subject to such mortgages;

                            (v) mortgages on any property (x) which, at any time
subsequent to January 1, 1985 through the date specified in the first  paragraph
of this instrument,  was leased to the Company, or, (y) pursuant to the terms of
any lease to the  Company  in effect at any time  subsequent  to January 1, 1985
through the date specified in the first paragraph of this  instrument,  title to
which would not have been vested in the Company (assuming such lease remained in
effect on the date of  determination  as such  lease  was in effect  immediately
prior to the date of this Indenture); or

                           (vi)  any  extension,   renewal  or  replacement  (or
successive extensions, renewals, or replacements), in whole or in part, of any
mortgage referred to in the foregoing clauses (i) to (v),  inclusive;  provided,
however,  that the  principal  amount of Debt secured  thereby and not otherwise
authorized by said clauses (i) to (v), inclusive, shall not exceed the principal
amount of Debt,  plus any  premium or fee  payable in  connection  with any such
extension,  renewal,  or replacement,  so secured at the time of such extension,
renewal, or replacement.

                                       57
<PAGE>


                  (b)  Notwithstanding  the provisions of Section  10.05(a),  so
long as any Notes are Outstanding,  the Company may issue,  assume, or guarantee
Debt,  or permit to exist Debt,  secured by mortgages  which would  otherwise be
subject to the  restrictions  of Section  10.05(a) up to an aggregate  principal
amount that, together with the principal amount of all other Debt of the Company
secured by mortgages  (other than mortgages  permitted by Section  10.05(a) that
would otherwise be subject to the foregoing  restrictions)  and the Value of all
Sale and Lease-Back  Transactions in existence at such time (other than any Sale
and Lease-Back  Transaction  that, if such Sale and Lease-Back  Transaction  had
been a mortgage,  would have been permitted by Section 10.05(a), other than Sale
and Lease-Back Transactions permitted by Section 10.10 because the commitment by
or on behalf of the  purchaser  was obtained no later than  eighteen (18) months
after the later of events  described in (i) or (ii) of Section 10.10,  and other
than Sale and Lease-Back  Transactions  as to which  application of amounts have
been made in accordance with clause (z) of Section 10.10),  does not at the time
exceed the greater of ten percent  (10%) of Net  Tangible  Assets or ten percent
(10%) of Capitalization.

                  (c) If at  any  time  the  Company  shall  issue,  assume,  or
guarantee any Debt secured by any mortgage and if Section 10.05(a) requires that
the Outstanding Notes be secured equally and ratably with such Debt, the Company
will promptly execute, at its expense,  any instruments  necessary to so equally
and  ratably  secure the  Outstanding  Notes and deliver the same to the Trustee
along with:

                            (i)  An  Officers'   Certificate  stating  that  the
covenant of the Company  contained in Section  10.05(a) has been complied  with;
and

                           (ii) An Opinion  of  Counsel  to the effect  that the
Company has complied with the covenant contained in Section 10.05(a), and
that any instrument  executed by the Company in the performance of such covenant
complies with the requirements of such covenant.

                  In  the  event  that  the  Company  shall   hereafter   secure
Outstanding  Notes equally and ratably with any other obligation or indebtedness
pursuant  to the  provisions  of this  Section  10.05,  the  Trustee  is  hereby
authorized  to enter into an indenture or agreement  supplemental  hereto and to
take such action, if any, as it may, in its sole and absolute  discretion,  deem
advisable  to enable it to  enforce  effectively  the  rights of the  Holders of
Outstanding Notes so secured,  equally and ratably with such other obligation or
indebtedness.

         Section 10.06     Corporate Existence.

                  Subject to the rights of the Company under  Article VIII,  the
Company  shall do or cause to be done all things  necessary to preserve and keep
in full force and effect its corporate existence.

         Section 10.07     Maintenance of Properties.

                  The Company shall cause (or, with respect to property owned in
common with others,  make reasonable effort to cause) all its properties used or
useful  in the  conduct  of its  business  to be  maintained  and  kept  in good
condition,  repair  and  working  order and shall  cause  (or,  with  respect to
property  owned in common with others,  make  reasonable  effort to cause) to be
made all necessary repairs, renewals, replacements, betterments and improvements
thereof,  all as, in the judgment of the  Company,  may be necessary so that the
business carried on in connection therewith may be properly conducted; provided,
however,   that  nothing  in  this  Section   shall  prevent  the  Company  from
discontinuing,  or causing the  discontinuance of, the operation and maintenance
of any of it  properties  if such  discontinuance  is,  in the  judgment  of the
Company, desirable in the conduct of its business.


                                       58
<PAGE>

         Section 10.08     Waiver of Certain Covenants.

                  The Company may omit in any particular instance to comply with
any  term,  provision  or  condition  set  forth  in (a)  Section  10.02  or any
additional  covenant or  restriction  specified with respect to the Notes of any
series as  contemplated  by Section 3.01 if before the time for such  compliance
the  Holders  of at  least a  majority  in  aggregate  principal  amount  of the
Outstanding  Notes of all series with respect to which  compliance  with Section
10.02 or such additional covenant or restriction is to be omitted, considered as
one class,  shall, by Act of such Holders,  either waive such compliance in such
instance or generally waive  compliance  with such term,  provision or condition
and (b) Section 10.07 or Article VIII if before the time for such compliance the
Holders of at least a majority in principal  amount of Notes  Outstanding  under
this Indenture  shall,  by Act of such Holders,  either waive such compliance in
such  instance  or  generally  waive  compliance  with such term,  provision  or
condition;  but, in the case of (a) or (b), no such  waiver  shall  extend to or
affect  such term,  provision  or  condition  except to the extent so  expressly
waived,  and, until such waiver shall become  effective,  the obligations of the
Company and the duties of the Trustee in respect of any such term,  provision or
condition shall remain in full force and effect.

         Section 10.09     Calculation of Original Issue Discount.

                  The Company shall file with the Trustee promptly at the end of
each  calendar year a written  notice  specifying  the amount of original  issue
discount  (including  daily rates and accrual  periods)  accrued on  Outstanding
Notes as of the end of such year.

         Section 10.10     Restrictions on Sale and Lease-Back Transactions.

                  So long as any Notes are  Outstanding,  the  Company  will not
enter into any Sale and  Lease-Back  Transaction  with respect to any  Operating
Property if, in any case,  the commitment by or on behalf of the purchaser is or
was  obtained  more  than  eighteen  (18)  months  after  the  later  of (i) the
completion of the  acquisition,  construction,  or development of such Operating
Property or (ii) the placing in operation of such Operating  Property or of such
Operating  Property  as  constructed,   developed,  or  substantially  repaired,
altered,  or  improved,  unless (x) the Company  would be  entitled  pursuant to
Section  10.05(a) to issue,  assume,  or guarantee Debt secured by a mortgage on
such Operating  Property  without equally and ratably  securing the Notes or (y)
the Company would be entitled pursuant to Section 10.05(b),  after giving effect
to such Sale and  Lease-Back  Transaction,  to incur  $1.00 of  additional  Debt
secured by mortgages (other than mortgages permitted by Section 10.05(a)) or (z)
the  Company  shall  apply  or  cause  to be  applied,  in the case of a sale or
transfer  for cash,  an amount  equal to the net  proceeds  thereof  (but not in
excess of the net book value of such Operating Property at the date of such sale
or transfer) and, in the case of a sale or transfer  otherwise than for cash, an
amount equal to the fair value (as  determined by the Board of Directors) of the
Operating Property so leased, to the retirement, within one hundred eighty (180)
days after the effective date of such Sale and Lease-Back  Transaction,  of Debt
of the Company ranking senior to, or equally with, the Notes; provided, however,
that the amount to be applied to such  retirement of Debt shall be reduced by an
amount equal to the principal amount, plus any premium or fee paid in connection
with any redemption in accordance with the terms of Debt voluntarily  retired by
the  Company  within  such  one  hundred  eighty  (180)  day  period,  excluding
retirement  pursuant to mandatory  sinking  fund or  prepayment  provisions  and
payments at maturity.

                                       59
<PAGE>


                                   ARTICLE XI

                               REDEMPTION OF NOTES

         Section 11.01     Applicability of Article.

                  Notes of any series which are  redeemable  before their Stated
Maturity  shall be  redeemable  in  accordance  with their  terms and (except as
otherwise  specified  as  contemplated  by  Section  3.01  for  such  Notes)  in
accordance with this Article.

         Section 11.02     Election to Redeem; Notice to Trustee.

                  The  election  of the  Company  to redeem  any Notes  shall be
evidenced  by a Board  Resolution,  in an  Officer's  Certificate  or in another
manner  specified as contemplated by Section 3.01 for such Notes. In case of any
redemption at the election of the Company,  the Company shall,  at least 45 days
prior to the Redemption Date fixed by the Company (unless a shorter notice shall
be satisfactory to the Trustee),  notify the Trustee of such Redemption Date, of
the principal  amount of Notes of such series to be redeemed and, if applicable,
of the tenor of the Notes to be redeemed. In the case of any redemption of Notes
(a) prior to the expiration of any  restriction on such  redemption  provided in
the terms of such Notes or  elsewhere in this  Indenture,  or (b) pursuant to an
election of the Company  which is subject to a condition  specified in the terms
of such Notes or  elsewhere in this  Indenture,  the Company  shall  furnish the
Trustee  with  an  Officers'   Certificate   evidencing   compliance  with  such
restriction or condition.

         Section 11.03     Selection by Trustee of Notes to be Redeemed.

                  If less than all the Notes of any series  are to be  redeemed,
the  particular  Notes to be redeemed  shall be selected by the Trustee from the
Outstanding Notes of such series not previously  called for redemption,  by such
method as shall be provided for any particular  series or, in the absence of any
such  provision,  by such method of random  selection as the Trustee  shall deem
fair and appropriate  and which may, in any case,  provide for the selection for
redemption of portions (equal to the minimum  authorized  denomination for Notes
of such series or any  integral  multiple  thereof) of the  principal  amount of
Notes of such  series  of a  denomination  larger  than the  minimum  authorized
denomination for Notes of such series; provided,  however, that if, as indicated
in an Officer's  Certificate,  the Company shall have offered to purchase all or
any principal amount of the Notes then Outstanding of any series,  and less than
all of such Notes as to which such  offer was made shall have been  tendered  to
the Company for such  purchase,  the Trustee,  if so directed by Company  Order,
shall select for redemption all or any principal amount of such Notes which have
not been so tendered.


                                       60
<PAGE>

                  The Trustee  shall  promptly  notify the Company in writing of
the  Notes  selected  for  redemption  as  aforesaid  and,  in case of any Notes
selected for partial redemption as aforesaid, the principal amount thereof to be
redeemed.

                  For  all  purposes  of  this  Indenture,  unless  the  context
otherwise  requires,  all  provisions  relating to the redemption of Notes shall
relate, in the case of any Notes redeemed or to be redeemed only in part, to the
portion  of the  principal  amount  of such  Notes  which  has  been or is to be
redeemed.

         Section 11.04     Notice of Redemption.

                  Notice  of  redemption  shall be given  by  first-class  mail,
postage  prepaid,  mailed  not less than 30 nor more  than 60 days  prior to the
Redemption  Date,  to each  Holder  of  Notes  to be  redeemed,  at his  address
appearing in the Note Register.

                  All  notices  of  redemption  shall  identify  the Notes to be
redeemed (including CUSIP number) and shall state:

                  (1)   the Redemption Date,

                  (2)   the Redemption Price,

                  (3) if less than all the  Outstanding  Notes of any series and
of a specified  tenor  consisting of more than a single Note are to be redeemed,
the  identification  (and, in the case of partial  redemption of any such Notes,
the principal  amounts) of the particular Notes to be redeemed and, if less than
all the Outstanding Notes of any series and of a specified tenor consisting of a
single Note are to be redeemed,  the principal  amount of the particular Note to
be redeemed,

                  (4) that on the  Redemption  Date the  Redemption  Price  will
become due and payable  upon each such Note to be redeemed  and, if  applicable,
that interest thereon will cease to accrue on and after said date,

                  (5)  the  place  or  places  where  each  such  Note  is to be
surrendered for payment of the Redemption Price,

                  (6) that the  redemption is for a sinking fund, if such is the
case, and

                  (7) such other matters as the Company shall deem  desirable or
appropriate.

                  Unless  otherwise  specified  with  respect  to any  Notes  in
accordance  with Section 3.01, with respect to any notice of redemption of Notes
at the election of the  Company,  unless,  upon the giving of such notice,  such
Notes  shall be deemed to have been paid in  accordance  with  Article  IV, such
notice may state that such redemption  shall be conditional  upon the receipt by
the  Paying  Agent or Agents for such  Notes,  on or prior to the date fixed for
such  redemption,  of money  sufficient to pay the principal of and premium,  if
any, and  interest,  if any, on such Notes and that if such money shall not have
been so  received  such  notice  shall be of no force or effect and the  Company
shall not be required  to redeem  such  Notes.  In the event that such notice of
redemption  contains  such a condition  and such money is not so  received,  the
redemption  shall not be made and within a  reasonable  time  thereafter  notice
shall be given, in the manner in which the notice of redemption was given,  that
such money was not so received and such  redemption was not required to be made,
and the Paying  Agent or Agents for the Notes  otherwise  to have been  redeemed
shall  promptly  return to the Holders  thereof any of such Notes which had been
surrendered for payment upon such redemption.


                                       61
<PAGE>

                  Notice of  redemption  of Notes to be redeemed at the election
of the Company, and any notice of non-satisfaction of a condition for redemption
as aforesaid, shall be given by the Company or, at the Company's request, by the
Trustee  in the name and at the  expense  of the  Company.  Notice of  mandatory
redemption  of  Securities  shall be given by the Trustee in the name and at the
expense of the Company.

         Section 11.05     Deposit of Redemption Price.

                  On or prior to any Redemption  Date, the Company shall deposit
with the Trustee or with a Paying Agent (or, if the Company is acting as its own
Paying  Agent,  segregate  and hold in trust as  provided  in Section  10.03) an
amount of money  sufficient to pay the  Redemption  Price of, and (except if the
Redemption Date shall be an Interest Payment Date) accrued interest, if any, on,
all the Notes which are to be redeemed on that date.

         Section 11.06     Notes Payable on Redemption Date.

                  Notice of redemption  having been given as aforesaid,  and the
conditions, if any, set forth in such notice having been satisfied, the Notes so
to be redeemed  shall,  on the  Redemption  Date,  become due and payable at the
Redemption Price therein specified, and from and after such date (unless, in the
case of an unconditional notice of redemption,  the Company shall default in the
payment of the Redemption Price and accrued  interest) such Notes shall cease to
bear interest. Upon surrender of any such Note for redemption in accordance with
said  notice,  such Note shall be paid by the Company at the  Redemption  Price,
together  with  accrued  interest,  if any, to the  Redemption  Date;  provided,
however,  that,  unless  otherwise  specified as  contemplated  by Section 3.01,
installments  of interest whose Stated Maturity is on or prior to the Redemption
Date will be payable to the  Holders of such Notes,  or one or more  Predecessor
Notes,  registered as such at the close of business on the relevant Record Dates
according to their terms and the provisions of Section 3.07.

         Section 11.07     Notes Redeemed in Part.

                  Any  Note  which  is to be  redeemed  only  in part  shall  be
surrendered at a Place of Payment  therefor (with, if the Company or the Trustee
so requires,  due  endorsement  by, or a written  instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder thereof
or his attorney duly authorized in writing),  and the Company shall execute, and
the Trustee  shall  authenticate  and deliver to the Holder of such Note without
service charge, a new Note or Notes of the same series and of like tenor, of any
authorized  denomination  as requested by such  Holder,  in aggregate  principal
amount equal to and in exchange for the  unredeemed  portion of the principal of
the Note so surrendered.

                                       62
<PAGE>


                                   ARTICLE XII

                                  SINKING FUNDS

         Section 12.01     Applicability of Article.

                  The  provisions  of this Article  shall be  applicable  to any
sinking  fund for the  retirement  of Notes of any  series  except as  otherwise
specified as contemplated by Section 3.01 for such Notes.

                  The minimum amount of any sinking fund payment provided for by
the  terms of any Notes is  herein  referred  to as a  "mandatory  sinking  fund
payment",  and any payment in excess of such minimum amount  provided for by the
terms of such Notes is herein referred to as an "optional sinking fund payment".
If provided  for by the terms of any Notes,  the cash amount of any sinking fund
payment may be subject to reduction as provided in Section  12.02.  Each sinking
fund payment shall be applied to the  redemption of Notes as provided for by the
terms of such Notes.

         Section 12.02     Satisfaction of Sinking Fund Payments with Notes.

                  The  Company  (1) may  deliver  Outstanding  Notes of a series
(other than any previously  called for redemption) and (2) may apply as a credit
Notes of a series  which have been (a)  redeemed  either at the  election of the
Company  pursuant  to the terms of such  Notes or  through  the  application  of
permitted  optional sinking fund payments pursuant to the terms of such Notes or
(b)  purchased by the Company in the open market,  by tender offer or otherwise,
in each case in satisfaction of all or any part of any sinking fund payment with
respect to any Notes of such series required to be made pursuant to the terms of
such  Notes  as and to the  extent  provided  for by the  terms  of such  Notes;
provided that the Notes to be so credited have not been  previously so credited.
The Notes to be so credited  shall be received  and credited for such purpose by
the  Trustee  at the  Redemption  Price,  as  specified  in the  Notes  so to be
redeemed, for redemption through operation of the sinking fund and the amount of
such sinking fund payment shall be reduced accordingly.

         Section 12.03     Redemption of Notes for Sinking Fund.

                  Not less than 45 days prior to each  sinking fund payment date
for any Notes, the Company will deliver to the Trustee an Officers'  Certificate
specifying  the amount of the next  ensuing  sinking fund payment for such Notes
pursuant to the terms of such Notes, the portion thereof, if any, which is to be
satisfied  by payment of cash and the portion  thereof,  if any,  which is to be
satisfied  by  delivering  and  crediting  Notes  pursuant to Section  12.02 and
stating the basis for such  credit and that such Notes have not been  previously
so credited and will also  deliver to the Trustee any Notes to be so  delivered.
Not less than 30 days prior to each such sinking fund payment date,  the Trustee
shall select the Notes to be redeemed upon such sinking fund payment date in the
manner specified in Section 11.03 and cause notice of the redemption  thereof to
be given in the name of and at the expense of the Company in the manner provided
in Section  11.04.  Such notice having been duly given,  the  redemption of such
Notes shall be made upon the terms and in the manner  stated in  Sections  11.06
and 11.07.


                                       63
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                                  ARTICLE XIII

                       DEFEASANCE AND COVENANT DEFEASANCE

         Section 13.01     Company's Option to Effect Defeasance or Covenant
                           Defeasance.

                  The  Company  may elect,  at its  option at any time,  to have
Section 13.02 or Section  13.03 applied to any Notes or any series of Notes,  as
the  case may be,  designated  pursuant  to  Section  3.01 as  being  defeasible
pursuant to such  Section  13.02 or 13.03,  in  accordance  with any  applicable
requirements  provided  pursuant to Section  3.01 and upon  compliance  with the
conditions set forth below in this Article. Any such election shall be evidenced
by a Board  Resolution or in another manner specified as contemplated by Section
3.01 for such Notes.

         Section 13.02     Defeasance and Discharge.

                  Upon the  Company's  exercise  of its  option (if any) to have
this  Section  applied to any Notes or any series of Notes,  as the case may be,
the Company shall be deemed to have been discharged  from its  obligations  with
respect  to such  Notes as  provided  in this  Section on and after the date the
conditions  set  forth  in  Section  13.04  are  satisfied  (hereinafter  called
"Defeasance"). For this purpose, such Defeasance means that the Company shall be
deemed to have paid and discharged the entire  indebtedness  represented by such
Notes and to have satisfied all its other  obligations under such Notes and this
Indenture  insofar as such Notes are concerned (and the Trustee,  at the expense
of the  Company,  shall  execute  proper  instruments  acknowledging  the same),
subject to the  following  which shall  survive  until  otherwise  terminated or
discharged hereunder: (1) the rights of Holders of such Notes to receive, solely
from the trust fund  described  in Section  13.04 and as more fully set forth in
such  Section,  payments  in respect of the  principal  of and any  premium  and
interest on such Notes when payments are due, (2) the Company's obligations with
respect to such Notes under Sections 3.04,  3.05, 3.06, 10.02 and 10.03 and with
respect to the Trustee  under  Section  6.07,  (3) the rights,  powers,  trusts,
duties and immunities of the Trustee hereunder and (4) this Article.  Subject to
compliance  with this  Article,  the Company may exercise its option (if any) to
have this Section applied to any Notes notwithstanding the prior exercise of its
option (if any) to have Section 13.03 applied to such Notes.

         Section 13.03     Covenant Defeasance.

                  Upon the  Company's  exercise  of its  option (if any) to have
this  Section  applied to any Notes or any series of Notes,  as the case may be,
(1) the Company shall be released from its  obligations  under  Sections  10.05,
10.07,  and 10.10,  and any  covenants  provided  pursuant to Section  3.01(19),
9.01(2),  9.01(6) or 9.01(7)  and 5.01(7) for the benefit of the Holders of such
Notes and (2) the  occurrence  of any event  specified in Section  5.01(4) (with
respect to any of  Sections  10.05,  10.07,  and 10.10,  and any such  covenants
provided pursuant to Section 3.01(19), 9.01(2), 9.01(6) or 9.01(7)) and 5.01(7))
shall be deemed not to be or result in an Event of Default  with respect to such
Notes as provided in this Section on and after the date the conditions set forth
in Section 13.04 are satisfied (hereinafter called "Covenant  Defeasance").  For
this purpose,  such Covenant  Defeasance means that, with respect to such Notes,
the Company may omit to comply  with and shall have no  liability  in respect of
any term,  condition or limitation set forth in any such  specified  Section (to
the extent so specified  in the case of Section  5.01(4)),  whether  directly or
indirectly by reason of any reference elsewhere herein to any such Section or by
reason of any reference in any such Section to any other provision  herein or in
any other document,  but the remainder of this Indenture and such Notes shall be
unaffected thereby.


                                       64
<PAGE>

         Section 13.04     Conditions to Defeasance or Covenant Defeasance.

                  The following  shall be the  conditions to the  application of
Section 13.02 or Section 13.03 to any Notes or any series of Notes,  as the case
may be:

                  (1) The Company shall  irrevocably have deposited or caused to
be deposited  with the Trustee as trust funds in trust for the purpose of making
the  following  payments,  specifically  pledged as security  for, and dedicated
solely to, the benefit of the Holders of such Notes, (A) money in an amount,  or
(B) U.S. Government Obligations which through the scheduled payment of principal
and interest in respect thereof in accordance with their terms will provide, not
later than one day before the due date of any  payment,  money in an amount,  or
(C) a  combination  thereof,  in  each  case  sufficient,  in the  opinion  of a
nationally  recognized  firm of independent  public  accountants  expressed in a
written  certification  thereof delivered to the Trustee,  to pay and discharge,
and which shall be applied by the Trustee to pay and discharge, the principal of
and any premium and interest on such Notes on the respective  Stated  Maturities
or on  any  Redemption  Date  established  pursuant  to  Clause  (9)  below,  in
accordance  with the terms of this  Indenture  and such Notes.  As used  herein,
"U.S.  Government  Obligation"  means  (x) any  security  which  is (i) a direct
obligation  of the United  States of America  for the  payment of which the full
faith  and  credit  of the  United  States  of  America  is  pledged  or (ii) an
obligation  of a Person  controlled  or supervised by and acting as an agency or
instrumentality  of the  United  States  of  America  the  payment  of  which is
unconditionally  guaranteed as a full faith and credit  obligation by the United
States  of  America,  which,  in either  case (i) or (ii),  is not  callable  or
redeemable at the option of the issuer thereof,  and (y) any depositary  receipt
issued by a bank (as  defined  in  Section  3(a)(2)  of the  Securities  Act) as
custodian with respect to any U.S.  Government  Obligation which is specified in
Clause  (x) above and held by such bank for the  account  of the  holder of such
depositary  receipt,  or with respect to any specific payment of principal of or
interest  on any U.S.  Government  Obligation  which is so  specified  and held,
provided  that (except as required by law) such  custodian is not  authorized to
make any  deduction  from the amount  payable  to the holder of such  depositary
receipt  from any  amount  received  by the  custodian  in  respect  of the U.S.
Government Obligation or the specific payment of principal or interest evidenced
by such depositary receipt.

                  (2) In the event of an election to have Section 13.02 apply to
any Notes or any  series of Notes,  as the case may be, the  Company  shall have
delivered to the Trustee an Opinion of Counsel  stating that (A) the Company has
received  from, or there has been published by, the Internal  Revenue  Service a
ruling or (B) since the date of this instrument,  there has been a change in the
applicable Federal income tax law, in either case (A) or (B) to the effect that,
and based thereon such opinion  shall  confirm  that,  the Holders of such Notes
will not recognize  gain or loss for Federal  income tax purposes as a result of
the deposit,  Defeasance and discharge to be effected with respect to such Notes
and will be subject to Federal income tax on the same amount, in the same manner
and at the same  times as would  be the  case if such  deposit,  Defeasance  and
discharge were not to occur.


                                       65
<PAGE>

                  (3) In the event of an election to have Section 13.03 apply to
any Notes or any  series of Notes,  as the case may be, the  Company  shall have
delivered to the Trustee an Opinion of Counsel to the effect that the Holders of
such Notes will not recognize  gain or loss for Federal income tax purposes as a
result of the deposit and  Covenant  Defeasance  to be effected  with respect to
such Notes and will be subject to Federal income tax on the same amount,  in the
same  manner  and at the same  times as  would be the case if such  deposit  and
Covenant Defeasance were not to occur.

                  (4)  The  Company  shall  have  delivered  to the  Trustee  an
Officers'  Certificate to the effect that neither such Notes nor any other Notes
of the same series, if then listed on any securities exchange,  will be delisted
as a result of such deposit.

                  (5) No event  which  is,  or after  notice or lapse of time or
both would  become,  an Event of Default with respect to such Notes or any other
Notes shall have occurred and be continuing at the time of such deposit or, with
regard to any such event  specified in Sections  5.01(5) and (6), at any time on
or prior to the 90th day after  the date of such  deposit  (it being  understood
that this condition shall not be deemed satisfied until after such 90th day).

                  (6) Such Defeasance or Covenant Defeasance shall not cause the
Trustee to have a conflicting interest within the meaning of the Trust Indenture
Act (assuming all Notes are in default within the meaning of such Act).

                  (7) Such Defeasance or Covenant Defeasance shall not result in
a breach or violation of, or constitute a default under,  any other agreement or
instrument to which the Company is a party or by which it is bound.

                  (8) Such Defeasance or Covenant Defeasance shall not result in
the trust arising from such deposit  constituting  an investment  company within
the meaning of the Investment  Company Act unless such trust shall be registered
under such Act or exempt from registration thereunder.

                  (9) If the Notes are to be redeemed  prior to Stated  Maturity
(other than from mandatory sinking fund payments or analogous payments),  notice
of such  redemption  shall have been duly given  pursuant to this  Indenture  or
provision therefor satisfactory to the Trustee shall have been made.

                  (10) The  Company  shall  have  delivered  to the  Trustee  an
Officers'  Certificate  and  an  Opinion  of  Counsel,  each  stating  that  all
conditions precedent with respect to such Defeasance or Covenant Defeasance have
been complied with.


                                       66
<PAGE>


         Section 13.05     Deposited Money and U.S. Government Obligations to Be
                           Held in Trust; Miscellaneous Provisions.

                  Subject to the  provisions  of the last  paragraph  of Section
10.03,  all  money  and U.S.  Government  Obligations  (including  the  proceeds
thereof)  deposited with the Trustee pursuant to Section 13.04 in respect of any
Notes shall be held in trust and applied by the Trustee,  in accordance with the
provisions of such Notes and this Indenture,  to the payment, either directly or
through any such Paying Agent  (including  the Company  acting as its own Paying
Agent) as the Trustee may determine,  to the Holders of such Notes,  of all sums
due and to become  due  thereon  in respect of  principal  and any  premium  and
interest,  but money so held in trust need not be  segregated  from other  funds
except to the extent required by law.

                  The Company shall pay and  indemnify  the Trustee  against any
tax,  fee or other  charge  imposed on or assessed  against the U.S.  Government
Obligations  deposited  pursuant to Section  13.04 or the principal and interest
received in respect  thereof  other than any such tax, fee or other charge which
by law is for the account of the Holders of Outstanding Notes.

                  Anything in this Article to the contrary notwithstanding,  the
Trustee  shall  deliver  or pay to the  Company  from time to time upon  Company
Request  any money or U.S.  Government  Obligations  held by it as  provided  in
Section  13.04 with respect to any Notes  which,  in the opinion of a nationally
recognized  firm  of  independent  public  accountants  expressed  in a  written
certification  thereof  delivered  to the  Trustee,  are in excess of the amount
thereof which would then be required to be deposited to effect the Defeasance or
Covenant Defeasance, as the case may be, with respect to such Notes.

         Section 13.06     Reinstatement.

                  If the  Trustee  or the  Paying  Agent is  unable to apply any
money in accordance with this Article with respect to any Notes by reason of any
order or judgment of any court or governmental authority enjoining,  restraining
or otherwise  prohibiting  such  application,  then the  obligations  under this
Indenture and such Notes from which the Company has been  discharged or released
pursuant to Section 13.02 or 13.03 shall be revived and  reinstated as though no
deposit had occurred pursuant to this Article with respect to such Notes,  until
such time as the Trustee or Paying Agent is permitted to apply all money held in
trust  pursuant to Section 13.05 with respect to such Notes in  accordance  with
this  Article;  provided,  however,  that if the  Company  makes any  payment of
principal  of or any  premium  or  interest  on any  such  Note  following  such
reinstatement of its obligations,  the Company shall be subrogated to the rights
(if any) of the Holders of such Notes to receive  such payment from the money so
held in trust.


                                   ARTICLE XIV

                   MEETINGS OF HOLDERS; ACTION WITHOUT MEETING

         Section 14.01     Purposes for Which Meetings May Be Called.

                  A meeting of Holders of Notes of one or more,  or all,  series
may be called  at any time and from time to time  pursuant  to this  Article  to
make,  give or take  any  request,  demand,  authorization,  direction,  notice,
consent,  waiver or other action provided by this Indenture to be made, given or
taken by Holders of Notes of such series.

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<PAGE>

         Section 14.02     Call, Notice and Place of Meetings.

                  (a) The  Trustee  may at any time call a meeting of Holders of
Notes of one or more, or all, series for any purpose specified in Section 14.01,
to be held at such time and at such place in the Borough of Manhattan,  The City
of New York,  as the  Trustee  shall  determine,  or,  with the  approval of the
Company,  at any other place.  Notice of every such  meeting,  setting forth the
time and the place of such meeting and in general  terms the action  proposed to
be taken at such  meeting,  shall be given,  in the manner  provided  in Section
1.06,  not less than 21 nor more than 180 days  prior to the date  fixed for the
meeting.

                  (b) If the Trustee shall have been requested to call a meeting
of the Holders of Notes of one or more, or all,  series by the Company or by the
Holders of 33% in  aggregate  principal  amount of Notes of all of such  series,
considered as one class, for any purpose  specified in Section 14.01, by written
request  setting forth in reasonable  detail the action  proposed to be taken at
the  meeting,  and the Trustee  shall not have given the notice of such  meeting
within 21 days after receipt of such request or shall not thereafter  proceed to
cause the meeting to be held as provided herein, then the Company or the Holders
of Notes of such series in the amount above  specified,  as the case may be, may
determine  the time and the place in the Borough of  Manhattan,  The City of New
York,  or in such other place as shall be determined or approved by the Company,
for such  meeting and may call such meeting for such  purposes by giving  notice
thereof as provided in clause (a) of this Section.

                  (c) Any  meeting of  Holders of Notes of one or more,  or all,
series shall be valid without notice if Holders of all Outstanding Notes of such
series are present in person or by proxy and if  representatives  of the Company
and the Trustee are present,  or notice is waived in writing before or after the
meeting by the  Holders of all  Outstanding  Notes of such  series or by such of
them as are not present at the meeting in person or by proxy, and by the Company
and the Trustee.

         Section 14.03     Persons Entitled to Vote at Meetings.

                  To be  entitled  to vote at any meeting of Holders of Notes of
one or  more,  or all,  series,  a Person  shall be (a) a Holder  of one or more
Outstanding  Notes of such series, or (b) a Person appointed by an instrument in
writing  as proxy for a Holder or Holders  of one or more  Outstanding  Notes of
such series by such Holder or Holders. The only persons who shall be entitled to
attend  any  meeting of  Holders  of Notes of any  series  shall be the  Persons
entitled to vote at such meeting and their counsel,  any  representatives of the
Trustee and its counsel and any representatives of the Company and its counsel.

         Section 14.04     Quorum: Action.

                  The Persons entitled to vote a majority in aggregate principal
amount of the  Outstanding  Notes of the series with  respect to which a meeting
shall have been called as hereinbefore provided,  considered as one class, shall
constitute a quorum for a meeting of Holders of Notes of such series;  provided,
however,  that if any action is to be taken at such meeting which this Indenture
expressly provides may be taken by the Holders of a specified percentage,  which
is less than a majority,  in principal  amount of the Outstanding  Notes of such
series,  considered as one class,  the Persons  entitled to vote such  specified
percentage  in  principal  amount  of the  Outstanding  Notes  of  such  series,
considered as one class,  shall constitute a quorum.  In the absence of a quorum


                                       68
<PAGE>

within one hour of the time  appointed for any such meeting,  the meeting shall,
if convened at the request of Holders of Notes of such series, be dissolved.  In
any other case the meeting may be adjourned for such period as may be determined
by the chairman of the meeting prior to the adjournment of such meeting.  In the
absence of a quorum at any such adjourned meeting, such adjourned meeting may be
further  adjourned  for such period as may be  determined by the chairman of the
meeting prior to the adjournment of such adjourned  meeting.  Except as provided
by clause  (e) of  Section  14.05,  notice  of the  reconvening  of any  meeting
adjourned  for more than 30 days  shall be given as  provided  in clause  (a) of
Section  14.02 not less than ten days prior to the date on which the  meeting is
scheduled to be reconvened.  Notice of the  reconvening of an adjourned  meeting
shall state expressly the percentage, as provided above, of the principal amount
of the Outstanding Notes of such series which shall constitute a quorum.

                  Except as limited by Section 9.02, any resolution presented to
a meeting or adjourned  meeting duly  reconvened at which a quorum is present as
aforesaid  may be  adopted  only by the  affirmative  vote of the  Holders  of a
majority in aggregate  principal  amount of the Outstanding  Notes of the series
with respect to which such meeting  shall have been  called,  considered  as one
class;  provided,  however,  that,  except as so limited,  any  resolution  with
respect to any action which this  Indenture  expressly  provides may be taken by
the  Holders  of a  specified  percentage,  which is less  than a  majority,  in
principal  amount of the  Outstanding  Notes of such series,  considered  as one
class,  may be adopted at a meeting or an adjourned  meeting duly reconvened and
at which a quorum is present as aforesaid by the affirmative vote of the Holders
of such specified  percentage in principal  amount of the  Outstanding  Notes of
such series, considered as one class.

                  Any  resolution  passed or  decision  taken at any  meeting of
Holders of Notes duly held in  accordance  with this Section shall be binding on
all the Holders of Notes of the series with respect to which such meeting  shall
have been held, whether or not present or represented at the meeting.

                  Section 14.05 Attendance at Meetings;  Determination of Voting
Rights; Conduct and Adjournment of Meetings.

                  (a)  Attendance  at  meetings  of  Holders  of Notes may be in
person or by proxy;  and, to the extent  permitted  by law, any such proxy shall
remain in effect and be binding upon any future Holder of the Notes with respect
to which it was given  unless  and until  specifically  revoked by the Holder or
future Holder of such Notes before being voted.

                  (b)  Notwithstanding  any other  provisions of this Indenture,
the Trustee may make such  reasonable  regulations  as it may deem advisable for
any  meeting of Holders of Notes in regard to proof of the holding of such Notes
and of the appointment of proxies and in regard to the appointment and duties of
inspectors of votes, the submission and examination of proxies, certificates and
other  evidence  of the right to vote,  and such other  matters  concerning  the
conduct  of the  meeting  as it shall  deem  appropriate.  Except  as  otherwise
permitted  or  required by any such  regulations,  the holding of Notes shall be
proved in the manner  specified in Section 1.04 and the appointment of any proxy
shall be proved in the manner  specified in Section 1.04.  Such  regulations may
provide that written instruments appointing proxies,  regular on their face, may
be presumed  valid and genuine  without the proof  specified  in Section 1.04 or
other proof.


                                       69
<PAGE>

                  (c) The Trustee shall, by an instrument in writing,  appoint a
temporary chairman of the meeting,  unless the meeting shall have been called by
the Company or by Holders as provided in clause (b) of Section  14.02,  in which
case the Company or the Holders of Notes of the series  calling the meeting,  as
the case may be, shall in like manner appoint a temporary chairman.  A permanent
chairman and a permanent  secretary  of the meeting  shall be elected by vote of
the Persons  entitled to vote a majority in  aggregate  principal  amount of the
Outstanding  Notes of all series  represented at the meeting,  considered as one
class.

                  (d) At any  meeting  each Holder or proxy shall be entitled to
one vote for each $1  principal  amount of Notes held or  represented  by him or
her; provided,  however, that no vote shall be cast or counted at any meeting in
respect of any Note  challenged as not  Outstanding and ruled by the chairman of
the meeting to be not  Outstanding.  The  chairman of the meeting  shall have no
right to vote, except as a Holder of a Note or proxy.

                  (e) Any meeting duly called pursuant to Section 14.02 at which
a quorum is present may be  adjourned  from time to time by Persons  entitled to
vote a majority in aggregate  principal  amount of the Outstanding  Notes of all
series represented at the meeting,  considered as one class; and the meeting may
be held as so adjourned without further notice.

         Section 14.06     Counting Votes and Recording Action of Meetings.

                  The vote  upon any  resolution  submitted  to any  meeting  of
Holders shall be by written  ballots on which shall be subscribed the signatures
of the Holders or of their  representatives  by proxy and the principal  amounts
and serial numbers of the Outstanding Notes, of the series with respect to which
the meeting shall have been called,  held or  represented by them. The permanent
chairman of the meeting  shall  appoint two  inspectors of votes who shall count
all votes cast at the meeting for or against any  resolution  and who shall make
and file with the secretary of the meeting their verified written reports of all
votes  cast at the  meeting.  A record of the  proceedings  of each  meeting  of
Holders  shall be  prepared by the  secretary  of the meeting and there shall be
attached to said record the original  reports of the  inspectors of votes on any
vote by ballot  taken  thereat  and  affidavits  by one or more  persons  having
knowledge  of the facts  setting  forth a copy of the notice of the  meeting and
showing  that said  notice  was given as  provided  in  Section  14.02  and,  if
applicable,  Section  14.04.  Each copy  shall be  signed  and  verified  by the
affidavits of the  permanent  chairman and secretary of the meeting and one such
copy  shall be  delivered  to the  Company,  and  another  to the  Trustee to be
preserved by the Trustee,  the latter to have attached thereto the ballots voted
at the meeting.  Any record so signed and verified shall be conclusive  evidence
of the matters therein stated.


                                       70
<PAGE>

         Section 14.07     Action Without Meeting.

                  In lieu of a vote of  Holders  at a  meeting  as  hereinbefore
contemplated in this Article,  any request,  demand,  authorization,  direction,
notice,  consent,  waiver or other action may be made, given or taken by Holders
by written instruments as provided in Section 1.04.


                                   ARTICLE XV

         IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS


         Section 15.01     Liability Solely Corporate.

                  No recourse  shall be had for the payment of the  principal of
or premium,  if any, or interest,  if any, on any Notes, or any part thereof, or
for  any  claim  based  thereon  or  otherwise  in  respect  thereof,  or of the
indebtedness represented thereby, or upon any obligation,  covenant or agreement
under this Indenture, against any incorporator,  stockholder,  employee, officer
or  director,  as  such,  past,  present  or  future  of the  Company  or of any
predecessor or successor  corporation (either directly or through the Company or
a predecessor or successor corporation), whether by virtue of any constitutional
provision,  statute or rule of law, or by the  enforcement  of any assessment or
penalty  or  otherwise;  it being  expressly  agreed  and  understood  that this
Indenture and all Notes are solely corporate  obligations,  and that no personal
liability  whatsoever  shall  attach to, or be  incurred  by, any  incorporator,
stockholder,  employee,  officer or director,  past,  present or future,  of the
Company  or  of  any  predecessor  or  successor  corporation,  because  of  the
indebtedness  hereby authorized or under or by reason of any of the obligations,
covenants or agreements contained in this Indenture or in any of the Notes or to
be implied herefrom or therefrom, and that any such personal liability is hereby
expressly   waived  and  released  as  a  condition  of,  and  as  part  of  the
consideration  for,  the  execution  of this  Indenture  and the issuance of the
Notes.

                                   ----------


                  This instrument may be executed in any number of counterparts,
each of which  so  executed  shall be  deemed  to be an  original,  but all such
counterparts shall together constitute but one and the same instrument.



                                       71
<PAGE>



                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Indenture  to be duly  executed,  and  their  respective  corporate  seals to be
hereunto affixed and attested, all as of the day and year first above written.

                                        PUBLIC SERVICE COMPANY
                                            OF NEW MEXICO


                                        By...............................
                                            Name:
                                            Title:


Attest:


 ..........................
Name:
Title:


                                        THE CHASE MANHATTAN BANK,
                                        as Trustee


                                        By................................
                                            Name:
                                            Title:


Attest:


 ..........................
Name:
Title:


                                       72
<PAGE>


STATE OF NEW MEXICO      )
                         ) ss.:
COUNTY OF BERNALILLO     )


   On the ____ day of __________ before me personally came ______________, to me
known,  who,  being  by me  duly  sworn,  did  depose  and  say  that  [s]he  is
____________  of Public Service Company of New Mexico,  one of the  corporations
described in and which executed the foregoing  instrument;  that [s]he knows the
seal of said  corporation;  that the seal  affixed  to said  instrument  is such
corporate seal; that it was so affixed by authority of the Board of Directors of
said  corporation;  and that  [s]he  signed  [her]  [his]  name  thereto by like
authority.



                                     .....................................
 
                                     My Commission Expires

                                     ................

STATE OF ____________      )
                           ) ss.:
COUNTY OF _________        )


   On the ____ day of ___________,  before me personally came _____________,  to
me  known,  who,  being by me duly  sworn,  did  depose  and say  that  [s]he is
____________ of The Chase Manhattan Bank, one of the  corporations  described in
and which executed the foregoing  instrument;  that [s]he knows the seal of said
corporation;  that the seal affixed to said  instrument is such corporate  seal;
that  it was so  affixed  by  authority  of  the  Board  of  Directors  of  said
corporation; and that [s]he signed [her] [his] name thereto by like authority.


                                     .....................................
 
                                     My Commission Expires

                                     ................


48322




                                       73
<PAGE>




- --------------------------------------------------------------------------------


                      PUBLIC SERVICE COMPANY OF NEW MEXICO

                                       TO

                            THE CHASE MANHATTAN BANK

                                     Trustee


                                 --------------


                          FIRST SUPPLEMENTAL INDENTURE

                           Dated as of March 11, 1998

                                       To

                                    INDENTURE


                           Dated as of March 11, 1998


                                 --------------

- --------------------------------------------------------------------------------

               (Creating Seven Series of Farmington Senior Notes)




63036183.02

<PAGE>




         FIRST  SUPPLEMENTAL  INDENTURE,  dated as of March  11,  1998,  between
PUBLIC SERVICE COMPANY OF NEW MEXICO,  a New Mexico  corporation  duly organized
and  existing  under  the laws of the State of New  Mexico  (herein  called  the
"Company"),  having its principal  office at Alvarado Square,  Albuquerque,  New
Mexico 87158, and THE CHASE MANHATTAN BANK, a New York banking  corporation,  as
Trustee (herein called the "Trustee")  under the Indenture dated as of March 11,
1998 between the Company and the Trustee (the "Indenture").

                             RECITALS OF THE COMPANY

         The Company has executed and  delivered the Indenture to the Trustee to
provide for the issuance  from time to time of its senior  notes (the  "Notes"),
said Notes to be issued in one or more series as in the Indenture provided.

         Pursuant to the terms of the Indenture,  the Company desires to provide
for  establishment of seven new series of its Notes to be respectively  known as
set forth under the column entitled,  "Series of Farmington  Notes" in Exhibit A
hereto  (collectively,  the "Farmington  Notes"), the form and substance of such
Farmington  Notes and the terms,  provisions,  and conditions  thereof to be set
forth as provided in the Indenture and this First Supplemental Indenture.

         The City of  Farmington,  in the  County of San Juan,  an  incorporated
municipality, a body politic and corporate,  existing under the constitution and
laws of the State of New Mexico  (together with its successors and assigns,  the
"City") has issued seven series of its Pollution Control Revenue Refunding Bonds
(Public  Service  Company of New  Mexico  San Juan  Project or San Juan and Four
Corners Projects)  (collectively,  the "Refunding Bonds") as described under the
column entitled "Pollution Control Revenue Refunding Bonds" in Exhibit A hereto.
The City has appointed First Security Bank of New Mexico,  N.A.  (formerly named
First National Bank in  Alberquerque),  as trustee  (together with any successor
trustee under the Ordinances (as  hereinafter  defined),  each a "Refunding Bond
Trustee"),  with respect to each series of Refunding  Bonds, all pursuant to and
as more  particularly  set forth in the  Ordinance and  supplements  and, to the
extent  applicable,  amendments  thereto,  relating to such series of  Refunding
Bonds  described  under the column  entitled  "City of Farmington  Ordinance" in
Exhibit A hereto adopted by the City (collectively the "Ordinances").

         The  Company  by  the  seven  Guaranty  Agreements   (collectively  the
"Guaranties" and individually, a "Guaranty") described under the column entitled
"Guaranties  and First  Supplemental  Guaranties"  in Exhibit A hereto  related,
respectively,  to the seven series of Refunding  Bonds,  each by and between the
Company and the  applicable  Refunding Bond Trustee,  guaranteed  payment of the
principal  of and  interest  on,  and the  Purchase  Price  (as  defined  in the
Ordinances)  of, the Refunding  Bonds (the  "Guaranteed  Amounts").  The Company
issued certain of its First Mortgage Bonds ("First  Mortgage Bonds") pursuant to
the  Company's  Indenture of Mortgage and Deed of Trust dated as of June 1, 1947
to The  Bank  of  New  York  (formerly  Irving  Trust  Company)  and  indentures
supplemental thereto as security for the performance of the Company's obligation
under the Guaranties to pay the respective Guaranteed Amounts.


                                       1
<PAGE>

         Pursuant  to each  Ordinance  and each  supplement  (collectively,  the
"First  Supplemental  Guaranties"),  to  each  of the  corresponding  Guaranties
between the Company and the Refunding Bond Trustee,  each such supplement  dated
as of March 11, 1998 and described  under the column  entitled,  "Guaranties and
First Supplemental Guaranties" in Exhibit A hereto, the First Mortgage Bonds are
being  exchanged  for  the  Farmington  Notes  to be  issued  under  this  First
Supplemental Indenture.

         Each of the seven new series of Farmington  Notes will relate to one of
the seven  series of  Refunding  Bonds  and will be issued  (x) in an  aggregate
principal amount equal to the aggregate  principal amount of the Refunding Bonds
of such series, maturing on such dates that upon the stated maturity date of the
Refunding  Bonds of such series a corresponding  principal  amount of Farmington
Notes of such  series  shall  mature,  (y) bearing  interest  (but only from the
Initial  Interest  Accrual Date, if any,  determined in accordance  with Section
1.03  below) at the same  interest  rate  borne by the  Refunding  Bonds of such
series and (z) be subject to  redemption  prior to maturity at the time,  in the
amount, and at the same redemption premium, if any, borne by the Refunding Bonds
of such  series.  Each  series of  Farmington  Notes  will be  delivered  to the
corresponding  Refunding  Bond Trustee,  as security for the  performance of the
Company's  obligation under the related  Guaranty to pay the Guaranteed  Amounts
under such Guaranty.

         All things necessary to make this First Supplemental  Indenture a valid
agreement of the Company, and to make the Farmington Notes, when executed by the
Company and authenticated and delivered by the Trustee, the valid obligations of
the Company, have been done.

  NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

         For and in  consideration  of the  premises and the  acceptance  of the
Farmington  Notes by the  corresponding  Refunding  Bond  Trustee as  collateral
security  for the  related  series of  Refunding  Bonds,  and for the purpose of
setting  forth,  as provided in the  Indenture,  the form and  substance  of the
Farmington  Notes and the  terms,  provisions,  and  conditions  thereof,  it is
mutually agreed,  for the equal and proportionate  benefit of all Holders of the
Farmington Notes, as follows:

                                   ARTICLE ONE
                         GENERAL TERMS AND CONDITIONS OF
                              THE FARMINGTON NOTES

         SECTION 1.01. There shall be and are hereby  authorized seven series of
Farmington Notes designated as follows:

         1. "6.40% Notes,  Series  F-1993-A,  Due August 15,  2023,"  limited in
aggregate principal amount to $100,000,000;

         2. "6.30% Notes,  Series  F-1996-A,  Due December 1, 2016,"  limited in
aggregate principal amount to $40,045,000;


                                       2
<PAGE>

         3. "6.30% Notes,  Series  F-1996-B,  Due December 1, 2016,"  limited in
aggregate principal amount to $37,000,000;

         4.  "5.80%  Notes,  Series  F-1997-A,  Due April 1,  2022,"  limited in
aggregate principal amount to $40,000,000;

         5.  "5.80%  Notes,  Series  F-1997-B,  Due April 1,  2022,"  limited in
aggregate principal amount to $37,000,000;

         6.  "5.80%  Notes,  Series  F-1997-C,  Due April 1,  2022,"  limited in
aggregate principal amount to $23,000,000; and

         7. "6 3/8%  Notes,  Series  F-1997-D,  Due April 1,  2022,"  limited in
aggregate principal amount to $90,000,000.

         The aggregate principal amount of each series of Farmington Notes to be
authenticated  and delivered shall be the aggregate  principal  amount set forth
under the column entitled "Principal Amount" in Exhibit A hereto. Subject to the
provisions of Section 1.03 below,  the  Farmington  Notes shall bear no interest
until  an  Initial  Interest  Accrual  Date,  if any,  has  been  determined  in
accordance  with Section 1.03 below.  The Farmington  Notes shall mature and the
principal thereof shall be due and payable, together with all accrued and unpaid
interest  thereon,  on their  respective  Stated  Maturities set forth under the
column entitled "Stated Maturity of Principal" in Exhibit A hereto, and shall be
issued  in  the  form  of  registered   Farmington  Notes  without  coupons,  in
denominations  of  $1,000  and  any  integral  multiple  thereof.  Each  of  the
Farmington Notes shall be dated as of the date of its authentication.

         SECTION 1.02. The Farmington Notes shall be issued to and registered in
the name of the Refunding Bond Trustee under the applicable  Ordinance and shall
be  non-transferable,  except  as may be  required  to  effect  transfer  to any
successor trustee to the Refunding Bond Trustee under such Ordinance.  Principal
of, and premium, if any, and interest on the Farmington Notes will be payable at
the  office  or  agency of the  Company  in The City and State of New York.  The
Farmington  Notes shall be deemed fully paid,  and the obligation of the Company
thereunder  shall be  terminated,  to the extent and in the manner  provided  in
Section 1.05.

         SECTION  1.03.  Each of the seven series of  Farmington  Notes has been
issued to the corresponding  Refunding Bond Trustee to secure the obligations of
the Company under the related Guaranty to pay the Guaranteed  Amounts under such
Guaranty.

         In the event of  failure  by the  Company  to make any  payment  of any
Guaranteed  Amounts  when  and as  required  by  the  Company  under  any of the
Guaranties,  the related  series of Farmington  Notes shall bear interest at the
annual rate  applicable  to such  series as set forth under the column  entitled
"Interest  Rate" in Exhibit A hereto from the last day to which  interest on the
corresponding  series of  Refunding  Bonds  has been  paid in full  prior to the
failure of the Company to pay such  Guaranteed  Amounts  (such date being herein
defined as the "Initial Interest Accrual Date"), and interest at such rate shall
be payable on the date due with respect to such Refunding  Bonds,  commencing on
the first  Interest  Payment  Date  applicable  to such  series set forth in the
column entitled  "Interest Payment Date" in Exhibit A hereto ("Interest  Payment
Date") following the Initial Interest Accrual Date.



                                       3
<PAGE>

         The Trustee may  conclusively  presume that no payments with respect to
interest on the Farmington Notes are due unless and until the Trustee shall have
received a written  certificate  from the  applicable  Refunding  Bond  Trustee,
signed by an authorized officer of such Refunding Bond Trustee,  certifying that
the  Company has failed to make a payment of any  Guaranteed  Amount when and as
required  to be made by it  under  any of the  Guaranties  and  specifying  such
Guaranty,  such  Guaranteed  Amount,  the interest  rate,  the Initial  Interest
Accrual  Date,  the  Interest  Payment  Date  and such  other  terms as shall be
applicable  to the payment of interest on the  applicable  series of  Farmington
Notes. The Trustee may rely and shall be fully protected in acting upon any such
certificate  and shall have no duty with  respect to the terms  specified in any
such  certificate  other  than to make  them  available  for  inspection  by the
Company.

         SECTION 1.04.  The Farmington  Notes shall be redeemed,  in whole or in
part, at the principal amount thereof plus any premium, and any accrued interest
from the Initial  Interest Accrual Date to the redemption date, if the Refunding
Bond Trustee notifies the Trustee in writing that Refunding Bonds are subject to
redemption as provided in Section 3.02 of the  Ordinances.  Any such notice must
be received by the Trustee no later than five days  (unless a shorter  period of
time is acceptable to the Trustee)  prior to any  redemption  date fixed for the
Refunding  Bonds to be redeemed and shall specify the  principal  amount of such
Refunding  Bonds  anticipated as of the date of such notice to be redeemed,  the
redemption  date,  the  redemption  premium,  if any,  and the amount of accrued
interest  anticipated  to be paid thereon.  In the event such notice is given to
the Trustee as  hereinabove  provided,  the  redemption  date of the  applicable
series of Farmington Notes shall be the date on which the  corresponding  series
of  Refunding  Bonds are to be  redeemed,  and on such date the said  Farmington
Notes shall be redeemed in the same principal amount as the corresponding series
of Refunding Bonds in fact redeemed, pursuant to Section 3.01 of the Ordinances.
The Company  shall deposit in trust with the Trustee on the  redemption  date an
amount of money  sufficient  to pay the principal  amount,  plus any premium and
accrued  interest,  if any, to the date fixed for  redemption on the  Farmington
Notes to be redeemed (the "Redemption Price").  Upon presentation to the Trustee
of any of the  Farmington  Notes by a Refunding  Bond Trustee for payment of the
Redemption  Price, such Farmington Notes so presented shall be redeemed and paid
in full.  However,  if,  in lieu of  presenting  the  Farmington  Notes  due for
redemption,  the Refunding Bond Trustee shall deliver such  Farmington  Notes to
the Trustee for cancellation,  then and in that event,  subject to Section 1.05,
such of the Farmington Notes so presented for cancellation shall be deemed fully
paid,  and if any moneys  shall have been  deposited  with the  Trustee for such
redemption,  then  such  moneys  shall  be  paid  over to the  Company,  and the
Farmington  Notes so  surrendered  shall be canceled in accordance  with Section
1.05.

         SECTION 1.05 Upon  surrender by a Refunding Bond Trustee or the Company
to the Trustee hereunder of any of the Farmington Notes for  cancellation,  such
notes shall be canceled by the Trustee and delivered to the Company and shall be
deemed fully paid and the obligations of the Company thereunder terminated.


                                       4
<PAGE>

         SECTION  1.06 The  Farmington  Notes  shall be  defeasible  pursuant to
Section 13.02 and Section 13.03 of the Indenture.

                                   ARTICLE TWO
                            FORM OF FARMINGTON NOTES

         SECTION 2.01.  The  Farmington  Notes and the Trustee's  certificate of
authentication  to be endorsed  thereon are to be substantially in the following
form:

         Pursuant to Section 1.02 of the First  Supplemental  Indenture dated as
of March 11, 1998,  supplemental  to the Indenture,  dated as of March 11, 1998,
between Public Service  Company of New Mexico and The Chase  Manhattan  Bank, as
Trustee,  this  Note is  nontransferable,  except as may be  required  to effect
transfer to any  successor  trustee to the  Refunding  Bond  Trustee (as defined
herein).

                      PUBLIC SERVICE COMPANY OF NEW MEXICO
                  ____% Notes, Series ____,Due ________________

No.                                                           $
    -----------                                                ------------

         PUBLIC  SERVICE  COMPANY  OF  NEW  MEXICO,  a  New  Mexico  corporation
organized and existing  under the laws of the State of New Mexico (herein called
the  "Company"  which term  includes any  successor  Person under the  Indenture
hereinafter  referred to), for value  received,  hereby promises to pay to First
Security  Bank of New Mexico,  N.A.,  as Trustee under the Ordinance (as defined
herein) on  ___*_____  (unless  this Note shall  have been  called for  previous
redemption and provision made for the payment of the redemption  price thereof),
the  principal  sum of $*  ____________  and to pay  interest  thereon  from the
Initial Interest Accrual Date (as defined herein) to the date of payment of this
Note at the rate of *_______%  per annum payable on the first  Interest  Payment
Date of *______ and *_______ following the Initial Interest Accrual Date.

         Payment of the principal of, and premium, if any, and any such interest
on this Note will be made at the office or agency of the Company  maintained for
that  purpose in The City of New York,  in such coin or  currency  of the United
States of  America as at the time of  payment  is legal  tender  for  payment of
public and private debts.

         This  Note is one of a duly  authorized  issue of  senior  notes of the
Company  (herein  called  the  "Notes"),  issued and to be issued in one or more
series  under an  Indenture,  dated as of March  11,  1998  (herein  called  the
"Indenture",  which  term  shall  have  the  meaning  assigned  to  it  in  such
instrument),  between  the  Company  and The Chase  Manhattan  Bank,  as Trustee
(herein  called the "Trustee",  which term includes any successor  trustee under
the Indenture), and reference is hereby made to the Indenture for a statement of
the respective rights,  limitations of rights,  duties and immunities thereunder
of the  Company,  the Trustee and the Holders of the Notes and of the terms upon
which the Notes are, and are to be, authenticated and delivered, to all of which
the Holder,  by  accepting  this Note,  assents.  This Note is one of the series
designated  on the  face  hereof,  limited  in  aggregate  principal  amount  to
$*............

- --------
 * Insert as appropriate for each series of Farmington  Notes, the designation,
principal  amount,  Interest Rate,  Stated Maturities of Principal and Interest,
Interest Payment Dates and other particulars  specified in Exhibit A hereto with
respect to such series.


                                       5
<PAGE>

         The Indenture permits, with certain exceptions as therein provided, the
amendment  thereof and the  modification  of the rights and  obligations  of the
Company and the rights of the Holders of the Notes of each series to be affected
under the  Indenture at any time by the Company and the Trustee with the consent
of the  Holders  of a  majority  in  principal  amount  of the Notes at the time
Outstanding  of  each  series  to  be  affected.  The  Indenture  also  contains
provisions  permitting the Holders of specified  percentages in principal amount
of the Notes of each series at the time Outstanding, on behalf of the Holders of
all Notes of such  series,  to waive  compliance  by the  Company  with  certain
provisions  of the  Indenture  and to waive  certain  past  defaults  under  the
Indenture  and  their  consequences,  provided,  however,  that if any such past
default  affects  more than one series of Notes,  the  Holders of a majority  in
aggregate  principal  amount  of  the  Outstanding  Notes  of all  such  series,
considered as one class,  shall have the right to waive such past  default,  and
not the Holders of the Notes of any one such series.  Any such consent or waiver
by the Holder of this Note shall be conclusive  and binding upon such Holder and
upon  all  future  Holders  of  this  Note  and  of any  Note  issued  upon  the
registration  of  transfer  hereof or in  exchange  herefor  or in lieu  hereof,
whether or not notation of such consent or waiver is made upon this Note.

         As provided  in and subject to the  provisions  of the  Indenture,  the
Holder of this Note shall not have the right to institute  any  proceeding  with
respect to the Indenture or for the  appointment of a receiver or trustee or for
any other remedy thereunder,  unless such Holder shall have previously given the
Trustee  written  notice of a  continuing  Event of Default  with respect to the
Notes of this  series,  the  Holders  of not less than a majority  in  aggregate
principal  amount of the Notes of all series at the time  Outstanding in respect
of which an Event of Default shall have occurred and be  continuing,  considered
as one  class,  shall have made  written  request  to the  Trustee to  institute
proceedings  in respect of such Event of  Default  as Trustee  and  offered  the
Trustee reasonable  indemnity,  and the Trustee shall not have received from the
Holders of a  majority  in  principal  amount of Notes of all series at the time
Outstanding  in respect of which an Event of Default  shall have occurred and be
continuing, considered as one class, a direction inconsistent with such request,
and shall  have  failed to  institute  any such  proceeding,  for 60 days  after
receipt of such notice, request and offer of indemnity.  The foregoing shall not
apply to any suit  instituted by the Holder of this Note for the  enforcement of
any payment of principal  hereof or interest  hereon on or after the  respective
due dates expressed herein.

         No reference  herein to the  Indenture and no provision of this Note or
of the Indenture  shall alter or impair the obligation of the Company,  which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times,  place and rate, and in the coin or currency,  herein
prescribed.


                                       6
<PAGE>

         The Notes of this series have been issued to First Security Bank of New
Mexico,  N.A.,  Albuquerque,   New  Mexico,  as  trustee  (the  "Refunding  Bond
Trustee"),  under  Ordinance  No. *____ adopted by the City of  Farmington,  New
Mexico (the "City"),  on  *_________________,  as supplemented by Resolution No.
____________ adopted by the City on *_______________  [and amended by Amendatory
Ordinance  No.  _________  adopted  by the  City on  *_________________]  and as
supplemented  [and  amended] by  [Amendatory  and]  Supplemental  Ordinance  No.
_*__________  adopted by the City on  February  10,  1998  (collectively,  as so
supplemented  and  amended,  the  "Ordinance"),  to secure the  guarantee by the
Company under a Guaranty Agreement dated as of *____ between the Company and the
Refunding  Bond  Trustee  and under a First  Supplement  to  *________  Guaranty
Agreement  dated as of *____ between the Company and the Refunding  Bond Trustee
relating to the Refunding Bonds  (collectively,  the "Guaranty"),  of payment of
the  principal of and interest due (the  "Guaranteed  Amounts") on the Pollution
Control Revenue Refunding Bonds,  199*___ Series *___ (Public Service Company of
New Mexico [San Juan Project] [San Juan and Four Corners  Projects]),  issued by
the City under the Ordinance (the "Refunding Bonds").

         In the event of  failure  by the  Company  to make any  payment  of any
Guaranteed Amount when and as required to be made by it under the Guaranty, this
Note shall bear interest from the last date to which  interest on such Refunding
Bonds has been paid in full  prior to the  failure  of the  Company  to pay such
Guaranteed  Amount  (such date being  herein  defined as the  "Initial  Interest
Accrual  Date"),  at the rate of  *________%  per annum  payable on the  [first]
[fifteenth] day of *__________ and the [first][fifteenth] day of *___________ of
each year,  commencing on the first Interest  Payment Date following the Initial
Interest Accrual Date.

         The Trustee may  conclusively  presume that no payments with respect to
interest on the Notes of this series are due unless and until the Trustee  shall
have received a written certificate from the Refunding Bond Trustee or successor
trustee under the  Ordinance,  signed by an authorized  officer of the Refunding
Bond Trustee or such successor  trustee,  certifying that the Company has failed
to make a payment of any Guaranteed Amount when and as required to be made by it
under the Guaranty and specifying such Guaranteed  Amount,  the Initial Interest
Accrual  Date and such  other  matters,  if any,  as shall be  pertinent  to the
payment of interest on the Notes of this series.  The Trustee may rely and shall
be fully  protected in acting upon any such  certificate  and shall have no duty
with respect to the matters specified in any such certificate other than to make
it available for inspection by the Company.

         Upon the surrender for cancellation,  at any time or from time to time,
of Notes of this series by the Refunding Bond Trustee,  successor  trustee under
the Ordinance,  or the Company to the Trustee, the Notes so surrendered shall be
deemed  fully  paid  and the  obligations  of the  Company  thereunder  shall be
terminated, and such Notes shall be canceled by the Trustee and delivered to the
Company.

         This Note is nontransferable except to effect transfer to any successor
trustee to the Refunding Bond Trustee,  any such transfer to be made as provided
in the Indenture and subject to certain  limitations  therein set forth,  by the
registration  of transfer of this Note in the Note  Register,  upon surrender of
this Note for registration of transfer at the office or agency of the Company in
any place where the  principal  of and any premium and interest on this Note are
payable, duly endorsed by, or accompanied by a written instrument of transfer in
form  satisfactory  to the Company and the Note  Registrar duly executed by, the
Holder hereof or his attorney duly  authorized in writing,  and thereupon one or
more new Notes of this series and of like tenor, of authorized denominations and
for the  same  aggregate  principal  amount,  will be  issued  to the  successor
Refunding Bond Trustee.


                                       7
<PAGE>

         If an Event of Default with respect to Notes of this series shall occur
and be continuing, the principal of the Notes of this series may be declared due
and payable in the manner and with the effect provided in the Indenture.

         No  recourse  shall  be had  for the  payment  of the  principal  of or
premium, if any, or interest,  if any, on any Notes, or any part thereof, or for
any claim based thereon or otherwise in respect thereof,  or of the indebtedness
represented  thereby,  or upon any obligation,  covenant or agreement under this
Indenture, against any incorporator, stockholder, employee, officer or director,
as such,  past,  present  or  future of the  Company  or of any  predecessor  or
successor  corporation  (either directly or through the Company or a predecessor
or successor  corporation),  whether by virtue of any constitutional  provision,
statute or rule of law, or by the  enforcement  of any  assessment or penalty or
otherwise;  it being expressly agreed and understood that this Indenture and all
Notes  are  solely  corporate  obligations,   and  that  no  personal  liability
whatsoever  shall attach to, or be incurred by, any  incorporator,  stockholder,
employee, officer or director, past, present or future, of the Company or of any
predecessor  or  successor  corporation,  because  of  the  indebtedness  hereby
authorized  or  under  or by  reason  of any of the  obligations,  covenants  or
agreements  contained in this  Indenture or in any of the Notes or to be implied
herefrom or therefrom,  and that any such personal liability is hereby expressly
waived and released as a condition of, and as part of the consideration for, the
execution of this Indenture and the issuance of the Notes.

         The Notes of this series are issuable only in  registered  form without
coupons  in  denominations  of $1,000  and any  integral  multiple  thereof.  As
provided in the Indenture and subject to certain  limitations therein set forth,
Notes of this series are exchangeable  for a like aggregate  principal amount of
Notes of this series and of like tenor of a different  authorized  denomination,
as requested by the Holder surrendering the same.

         No service charge shall be made for any such  registration  of transfer
or exchange,  but the Company may require  payment of a sum  sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Note for registration of transfer, the
Company,  the  Trustee and any agent of the Company or the Trustee may treat the
Person in whose  name  this  Note is  registered  as the  owner  hereof  for all
purposes,  whether or not this Note be overdue,  and neither  the  Company,  the
Trustee nor any such agent shall be affected by notice to the contrary.

         The Notes of this series shall be  redeemable  as provided in the First
Supplemental  Indenture,  dated  as of  March  11,  1998,  supplemental  to  the
Indenture.


                                       8
<PAGE>

         All terms used in this Note which are  defined in the  Indenture  shall
have the meanings assigned to them in the Indenture.

         Unless the  certificate of  authentication  hereon has been executed by
the  Trustee  referred  to below by manual  signature,  this  Note  shall not be
entitled to any benefit under the  Indenture or be valid or  obligatory  for any
purpose.

         IN WITNESS  WHEREOF,  the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:
       ---------------------
                                        PUBLIC SERVICE COMPANY
                                        OF NEW MEXICO


                                        By
                                           --------------------------
                                                 [TITLE]

Attest:


- ----------------------------


                         CERTIFICATION OF AUTHENTICATION

         This is one of the Notes of the series  designated  therein referred to
in the within-mentioned Indenture.

Dated:
                                        THE CHASE MANHATTAN BANK, as Trustee


                                        By
                                           -------------------------- 
                                                 Authorized Officer


                                       9
<PAGE>

                                  ARTICLE THREE
                       ORIGINAL ISSUE OF FARMINGTON NOTES

         SECTION 3.01. The Farmington Notes of the seven series set forth in the
column entitled "Series of Farmington Notes" in the respective principal amounts
thereof  set forth  under the  column  entitled  Principal  Amount" in Exhibit A
hereto , may, upon execution of this First Supplemental  Indenture, or from time
to time  thereafter,  be  executed  on behalf of the  Company by any  officer or
employee  authorized to do so by a Board  Resolution,  under its corporate  seal
affixed thereto or reproduced thereon attested by its Secretary or by one of its
Assistant  Secretaries and delivered to the Trustee for authentication,  and the
Trustee  shall  thereupon  authenticate  and  deliver  said  Farmington  Notesin
accordance with a Company Order delivered to the Trustee by the Company.

                                  ARTICLE FOUR
                           PAYING AGENT AND REGISTRAR

         SECTION  4.01.  The Chase  Manhattan  Bank will be the Paying Agent and
Note Registrar for the Farmington Notes.

                                  ARTICLE FIVE
                                SUNDRY PROVISIONS

         SECTION 5.01. The Company  hereby  covenants that so long as any of the
Farmington  Notes shall remain  outstanding,  the Company  shall  deliver to the
Trustee as soon as available copies  (certified by an officer or employee of the
Company  to be true)  of the  Ordinances,  the  corresponding  Installment  Sale
Agreement or Amended and Restated  Installment Sale Agreement (as defined in the
Ordinances),  the  Guaranties  and  copies  of any  supplements,  amendments  or
replacements thereto,  together with such other documents and instruments as the
Trustee  may  reasonably  request  from  time  to time in  connection  with  the
transactions  contemplated  hereby. The Trustee shall have no duty to examine or
take any other  action with  respect to any such  documents  or  instruments  so
received  by it,  other  than to retain  in its  files  any of same  which it so
receives and to make same available for inspection  during normal business hours
by any owner of the Farmington Notes.

         SECTION  5.02.  Except as  otherwise  expressly  provided in this First
Supplemental  Indenture or in the form of Farmington Notes or otherwise  clearly
required by the context hereof or thereof, all terms used herein or in said form
of the Farmington Notes that are defined in the Indenture shall have the several
meanings respectively assigned to them thereby.

         SECTION 5.03. The Indenture, as supplemented by this First Supplemental
Indenture,   is  in  all  respects  ratified  and  confirmed,   and  this  First
Supplemental  Indenture  shall be deemed part of the Indenture in the manner and
to the extent herein and therein provided.


                                       10
<PAGE>

         SECTION 5.04. The Trustee  hereby  accepts the trusts herein  declared,
provided, created,  supplemented, or amended and agrees to perform the same upon
the terms and  conditions  herein and in the  Indenture,  set forth and upon the
following terms and conditions:

         The Trustee shall not be responsible in any manner whatsoever for or in
         respect of the  validity  or  sufficiency  of this  First  Supplemental
         Indenture or for or in respect of the recitals contained herein, all of
         which  recitals are made by the Company  solely.  In general,  each and
         every term and condition contained in Article VI of the Indenture shall
         apply to and form part of this First  Supplemental  Indenture  with the
         same force and effect as if the same were herein set forth in full with
         such  omissions,   variations,  and  insertions,  if  any,  as  may  be
         appropriate  to make the same conform to the  provisions  of this First
         Supplemental Indenture.

         To the extent  permitted by Section 6.01 of the Indenture,  and without
         limitation of Section 6.03 of the  Indenture,  the Trustee may rely and
         shall  be  protected  in  acting  upon  any  resolution,   certificate,
         statement,  instrument,  opinion,  report, notice, request,  direction,
         consent, order, bond, debenture,  note, other evidence of indebtedness,
         or  other  paper  or  document  (including,   without  limitation,  the
         Ordinances,  the Guaranties,  the First Supplemental Guaranties, or any
         notice,  certificate, or other document provided for in the Ordinances,
         the  Guaranties,  the  First  Supplemental  Guaranties  or  this  First
         Supplemental  Indenture)  believed  by the Trustee to be genuine and to
         have been signed or presented by the proper party or parties.

         SECTION  5.05.  This  instrument  may  be  executed  in any  number  of
counterparts,  each of which so executed shall be deemed to be an original,  but
all such counterparts shall together constitute but one and the same instrument.


                                       11
<PAGE>


         IN  WITNESS  WHEREOF,   the  parties  hereto  have  caused  this  First
Supplemental,  Indenture to be duly  executed,  and their  respective  corporate
seals to be  hereunto  affixed  and  attested,  all as of the day and year first
above written.

                                        PUBLIC SERVICE COMPANY OF NEW MEXICO

                                        By:
                                            --------------------------------
                                                 M.H. Maerki
                                                 Senior Vice President
                                                 and Chief Financial Officer
Attest:


- --------------------
      Secretary
                                        THE CHASE MANHATTAN BANK, as Trustee

                                        By:
                                            --------------------------------
                                                 T.J. Foley
                                                 Vice President
Attest:


- --------------------
Senior Trust Officer


STATE OF NEW MEXICO   )
                      ) ss.:
COUNTY OF BERNALILLO  )

         On the ____ day of March,  1998 before me personally came M.H.  Maerki,
to me known,  who, being by me duly sworn,  did depose and say that he is Senior
Vice  President and Chief  Financial  Officer of Public  Service  Company of New
Mexico,  one of the  corporations  described in and which executed the foregoing
instrument; that he knows the seal of said corporation; that the seal affixed to
said  instrument is such corporate  seal; that it was so affixed by authority of
the Board of Directors of said corporation;  and that he signed his name thereto
by like authority.


                                               ----------------------------
                                               Notary Public

                                               My Commission Expires:

                                               ----------------------------

                                       12
<PAGE>



STATE OF NEW YORK   )
                    ) ss.:
COUNTY OF NEW YORK  )

         On the 11th day of March,  1998,  before me personally came T.J. Foley,
to me known,  who,  being by me duly  sworn,  did depose and say that he is Vice
President of The Chase Manhattan Bank, one of the corporations  described in and
which  executed  the  foregoing  instrument;  that  he  knows  the  seal of said
corporation;  that the seal affixed to said  instrument is such corporate  seal;
that  it was so  affixed  by  authority  of  the  Board  of  Directors  of  said
corporation; and that he signed his name thereto by like authority.

                             

                                               ----------------------------
                                               Notary Public


50022


                                       13
<PAGE>
<TABLE>
<CAPTION>
                                       EXHIBIT A - DESCRIPTION OF 7 SERIES OF FARMINGTON NOTES
                                                 SAN JUAN AND FOUR CORNERS PROJECTS

                                                                                                                       Guaranties   
                                Series of                                             Interest       City of            and First   
       Pollution Control       Farmington     Principal    Stated Maturity  Interest  Payment      Farmington          Supplemental
    Revenue Refunding Bonds       Notes         Amount       of Principal     Rate     Dates        Ordinance          Guaranties
    -----------------------  --------------   ---------    ---------------  --------  --------     ----------          ------------
<S> <C>                     <C>              <C>          <C>               <C>     <C>         <C>                 <C>

1.  $100,000,000 City of    6.40% Notes,     $100,000,000 August 15,        6.40%   February 15 Ordinance No.       Guaranty Agree- 
    Farmington, New         Series F-1993-A,              2023                      August 15   93-995 adopted      ment dated      
    Mexico, 6.40% Pollu-    Due August 15,                                                      Aug. 24, 1993 as    August 15, 1993;
    tion Control Revenue    2023                                                                supplemented by     First Supple-   
    Refunding Bonds, 1993                                                                       Resolution No.      ment to 1993A   
    Series A (Public                                                                            93-748 adopted      Guaranty
    Service Company of                                                                          Aug. 24, 1993 and   Agreement dated
    New Mexico San Juan                                                                         as supplemented by  as of March 11,
    and Four Corners                                                                            Supplemental        1998.
    Projects).                                                                                  Ordinance No. 98-
                                                                                                1065 adopted on
                                                                                                February 10, 1998      


2.  $40,045,000 City of     6.30% Notes,      $40,045,000  December 1,      6.30%   June 1      Ordinance No.       Guaranty Agree- 
    Farmington, New Mexico  Series F-1996-A,               2016                     December 1  96-1049, adopted    ment dated      
    6.30% Pollution Control Due December 1,                                                     Nov. 19, 1996 as    December 1, 1996
    Control Revenue Re-     2016                                                                supplemented by     First Supple-   
    funding Bonds, 1995                                                                         Resolution No. 96-  ment to 1996A   
    Series A (Public Service                                                                    866 adopted Nov.    Guaranty Agree-
    Company of New Mexico                                                                       19, 1996 and as     ment dated as
    San Juan Project).                                                                          amended by Amenda-  of March 11,
                                                                                                tory Ordinance      1998.
                                                                                                No. 96-1050     
                                                                                                adopted on Nov.  
                                                                                                26, 1996 and as     
                                                                                                supplemented and    
                                                                                                amended by Amenda-  
                                                                                                tory and Supple-    
                                                                                                mental Ordinance No.
                                                                                                98-1066 adopted on  
                                                                                                February 10, 1998   

                                                                                                
3.  $37,000,000 City of     6.30% Notes,      $37,000,000  December 1,      6.30%   June 1      Ordinance No. 96-   Guaranty Agree- 
    Farmington, New Mexico  Series F-1996-B,               2016                     December 1  1049, adopted Nov.  ment dated      
    6.30% Pollution Con-    Due December 1,                                                     19, 1996 as sup-    December 1,1996 
    trol Revenue Refunding  2016                                                                plemented by        First Supplement
    Bonds, 1996 Series B                                                                        Resolution No. 96-  to 1996B        
    (Public Service Company                                                                     866 adopted Nov.19, Guaranty Agree-
    Mexico San Juan Project)                                                                    1996 and as amended ment dated as
                                                                                                by Amendatory Ordi- of March 11, 
                                                                                                nance No. 96-1050   1998
                                                                                                adopted on Nov. 26,
                                                                                                1996 and as supple-
                                                                                                mented No. 98-1066
                                                                                                adopted on February   
                                                                                                10, 1998

4.  $40,000,000 City of     5.80% Notes,      $40,000,000  April 1, 2022    5.80%   April 1     Ordinance No. 97-   Guaranty Agree- 
    Farmington, New Mexico  Series F-1997-A,                                        October 1   1052, adopted Jan.  ment dated      
    Pollution Control       Due April 1, 2022                                                   28, 1997 as supple- February 1,1997 
    Revenue Refunding                                                                           mented byResolution First supplement
    Bonds, 5.80% 1997                                                                           No. 97-870, adopted to 1997A        
    Series A (Public Ser-                                                                       Jan. 28, 1997 as    Guaranty Agree-
    vice Company of New                                                                         amended by Amenda-  ment dated as
    Mexico San Juan                                                                             tory Ordinance No.  of March 11,
    Project).                                                                                   97-1053 adopated    1998.
                                                                                                Feb. 11, 1997 and   
                                                                                                as supplemented by
                                                                                                Supplemental Ordi-
                                                                                                nance No. 98-1067
                                                                                                adopted on February
                                                                                                10, 1998

5.  $37,000,000 City of     5.80% Notes,       $37,000,000  April 1, 2022   5.80%   April 1     Ordinance No. 97-   Guaranty Agree- 
    Farmington, New Mexico  Series F-1997-B,                                        October 1   1052, adopted Jan.  ment dated      
    Pollution Control       Due April 1, 2022                                                   28, 1997 as supple- February 1, 1997
    Revenue Refunding                                                                           mented byResolution First Supplement
    Bonds 5.80% 1997                                                                            No. 97-870, adopted to 1997C      
    Series B (Public                                                                            Jan 28, 1997 as     Guaranty Agree-
    Service Company of                                                                          amended by Amenda-  ment dated as
    New Mexico San Juan                                                                         tory Ordinance No.  of March 11,
    Project).                                                                                   97-1053 adopted     1998.
                                                                                                Feb. 11, 1997 and 
                                                                                                as supplemented by
                                                                                                Supplemental Ordi-
                                                                                                nance No. 98-1067
                                                                                                adopted on February
                                                                                                10, 1998


6.  $23,000,000 City of     5.80% Notes,       $23,000,000  April 1, 2022    5.80%  April 1     Ordinance No. 97-   Guaranty Agree- 
    Farmington, New Mexico  Series F-1997-C,                                        October 1   1052, adopted Jan.  ment dated      
    Pollution Control       Due April 1, 2022                                                   28, 1997 as supple- February 1, 1997
    Revenue Refunding                                                                           mented byResolution First Supplement
    Bonds, 5.80% 1997                                                                           No. 97-870, adopted to 1997C        
    Series C (Public                                                                            Jan 28, 1997 as     Guaranty Agree- 
    Service Company of                                                                          amended by Amenda-  ment dated as   
    New Mexico San Juan                                                                         tory Ordinance No.  of March 11,    
    Project).                                                                                   97-1053 adopted     1998.           
                                                                                                Feb. 11, 1997 and                   
                                                                                                as supplemented by                  
                                                                                                Supplemental Ordi-                  
                                                                                                nance No. 98-1067                   
                                                                                                adopted on February                 
                                                                                                10, 1998                            
                                                                                                

7.  $90,000,000 City of     6 3/8% Notes,      $90,000,000  April 1, 2022   6.3/8%  April 1     Ordinance No. 97-   Guaranty Agree- 
    Farmington, New Mexico  Series F-1997-D,                                        October 1   1052, adopted Jan.  ment dated      
    6 3/8% Pollution        Due April 1, 2022                                                   28, 1997 as supple- February 1, 1997
    Control Revenue Re-                                                                         mented byResolution First Supplement
    funding Bonds, 1997                                                                         No. 97-870, adopted to 1997C        
    Series D (Public                                                                            Jan 28, 1997 as     Guaranty Agree- 
    Service Company of                                                                          amended by Amenda-  ment dated as   
    New Mexico San Juan                                                                         tory Ordinance No.  of March 11,    
    Project).                                                                                   97-1053 adopted     1998.           
                                                                                                Feb. 11, 1997 and                   
                                                                                                as supplemented by                  
                                                                                                Supplemental Ordi-                  
                                                                                                nance No. 98-1067                   
                                                                                                adopted on February                 
                                                                                                10, 1998                            
</TABLE>


- --------------------------------------------------------------------------------




                      PUBLIC SERVICE COMPANY OF NEW MEXICO
                                       TO
                            THE CHASE MANHATTAN BANK
                                     Trustee

                                 --------------

                          SECOND SUPPLEMENTAL INDENTURE
                           Dated as of March 11, 1998
                                       To
                                    INDENTURE

                           Dated as of March 11, 1998
                                 --------------


- --------------------------------------------------------------------------------

                (Creating Three Series of Maricopa Senior Notes)





<PAGE>



         SECOND  SUPPLEMENTAL  INDENTURE,  dated as of March 11,  1998,  between
PUBLIC SERVICE COMPANY OF NEW MEXICO,  a corporation duly organized and existing
under the laws of the State of New Mexico (herein called the "Company"),  having
its principal office at Alvarado Square, Albuquerque,  New Mexico 87158, and THE
CHASE MANHATTAN BANK, a New York banking corporation,  as Trustee (herein called
the  "Trustee")  under the  Indenture  dated as of March 11,  1998  between  the
Company and the Trustee (the "Indenture").

                             RECITALS OF THE COMPANY

         The Company has executed and  delivered the Indenture to the Trustee to
provide for the issuance  from time to time of its senior  notes (the  "Notes"),
said Notes to be issued in one or more series as in the Indenture provided.

         Pursuant to the terms of the Indenture,  the Company desires to provide
for the establishment of three new series of its Notes to be respectively  known
as set forth under the column entitled,  "Series of Maricopa Notes" in Exhibit A
hereto  (collectively,  the  "Maricopa  Notes"),  the form and substance of such
Maricopa Notes and the terms, provisions, and conditions thereof to be set forth
as provided in the Indenture and this Second Supplemental Indenture.

         The  Maricopa  County,   Arizona  Pollution  Control  Corporation  (the
"Authority") has issued three series of its Pollution  Control Revenue Refunding
Bonds (Public Service  Company of New Mexico Palo Verde Project)  (collectively,
the "Refunding Bonds") as described under the column entitled "Pollution Control
Revenue Refunding Bonds" in Exhibit A hereto.

         The  Authority has appointed  First  Security Bank of New Mexico,  N.A.
(formerly named First National Bank in Albuquerque),  as trustee  (together with
any successor  trustee under the Indentures of Trust (as  hereinafter  defined),
each a  "Refunding  Bond  Trustee"),  with  respect to each series of  Refunding
Bonds,  all pursuant to and as more  particularly  set forth in the Indenture of
Trust and Pledge and  supplements  thereto  relating to such series of Refunding
Bonds  described  under the column  entitled  "Indenture  of Trust" in Exhibit A
hereto made by the Authority to the Refunding  Bond Trustee  (collectively,  the
"Indentures of Trust").

         Pursuant  to the three  Loan  Agreements  described  under  the  column
entitled  "Loan  Agreement" in Exhibit A hereto  related,  respectively,  to the
three series of Refunding Bonds  (collectively,  the "Loan  Agreements") each by
and between the Authority and the Company,  the Authority loaned  (collectively,
the  "Loans") to the Company the  proceeds  from the  issuance of the  Refunding
Bonds,  and the Company is obligated to make certain  payments to the Authority,
which  payments  the  Authority  has  pledged  and  assigned  to the  applicable
Refunding  Bond Trustee by the terms of the  Indentures  of Trust to provide for
the payment of  principal  of and  premium,  if any, and interest on each of the
corresponding three series of Refunding Bonds.

<PAGE>

         Pursuant  to the  Loan  Agreements,  as  collateral  security  for  the
Refunding  Bonds, the Company issued certain of its First Mortgage Bonds ("First
Mortgage  Bonds")  under the  Company's  Indenture of Mortgage and Deed of Trust
dated as of June 1, 1947 to The Bank of New York (formerly Irving Trust Company)
and certain supplemental indentures thereto.

         Pursuant  to  each  Indenture  of  Trust  and  each  supplement  to the
corresponding  Loan Agreement  between the Company and the Authority,  each such
supplement  dated as of March 11, 1998 and entitled  "First  Supplement  to Loan
Agreement"  (collectively,  the "First Supplemental Loan Agreements"),  related,
respectively, to each of the three series of Refunding Bonds, the First Mortgage
Bonds are being  exchanged for the Maricopa Notes to be issued under this Second
Supplemental Indenture.

         Pursuant to each of the First Supplemental Loan Agreements, each series
of the Maricopa Notes will be pledged to the  applicable  Refunding Bond Trustee
as  security  for  the  performance  of  the  Company's  obligations  under  the
respective Loan Agreement to repay each Loan in an amount equal to the principal
of, premium, if any, and interest due on each of the corresponding series of the
Refunding Bonds (the "Required Amounts").

         Each of the three new series of  Maricopa  Notes will  relate to one of
the three  series of  Refunding  Bonds  and will be issued  (x) in an  aggregate
principal amount equal to the aggregate  principal amount of the Refunding Bonds
of such series, maturing on such dates that upon the stated maturity date of the
Refunding  bonds of such  series a  corresponding  principal  amount of Maricopa
Notes of such  series  shall  mature,  (y) bearing  interest  (but only from the
Initial  Interest  Accrual Date, if any,  determined in accordance  with Section
1.03  below) at the same  interest  rate  borne by the  Refunding  Bonds of such
series and (z) be subject to  redemption  prior to maturity at the time,  in the
amount, and at the same redemption premium, if any, borne by the Refunding Bonds
of  such  series.  Each  series  of  Maricopa  Notes  will be  delivered  to the
corresponding  Refunding  Bond Trustee,  as security for the  performance of the
Company's  obligations  under the related Loan  Agreements to pay the Loan under
such Loan Agreements.

         All things necessary to make this Second Supplemental Indenture a valid
agreement of the Company,  and to make the Maricopa Notes,  when executed by the
Company and authenticated and delivered by the Trustee, the valid obligations of
the Company, have been done.

         NOW, THEREFORE, THIS SECOND SUPPLEMENTAL INDENTURE WITNESSETH:

         For and in  consideration  of the  premises and the  acceptance  of the
Maricopa  Notes  by the  corresponding  Refunding  Bond  Trustee  as  collateral
security  for the  related  series of  Refunding  Bonds,  and for the purpose of
setting  forth,  as provided in the  Indenture,  the form and  substance  of the
Maricopa Notes and the terms, provisions, and conditions thereof, it is mutually
agreed,  for the equal and proportionate  benefit of all Holders of the Maricopa
Notes, as follows:

                                       2
<PAGE>


                                   ARTICLE ONE
                         GENERAL TERMS AND CONDITIONS OF
                               THE MARICOPA NOTES

         SECTION 1.01. There shall be and are hereby  authorized three series of
Maricopa Notes designated as follows:

         1. "5.75% Notes,  Series  M-1992-A,  Due November 1, 2022," limited in
aggregate principal amount to $37,300,000;

         2. "6-3/8%  Notes,  Series  M-1993-A,  Due August 15, 2023," limited in
aggregate principal amount to $36,000,000;

         3. "6.30% Notes,  Series  M-1996-A,  Due December 1, 2026,"  limited in
aggregate principal amount to $23,000,000.

         The aggregate  principal  amount of each series of Maricopa Notes to be
authenticated  and delivered shall be the aggregate  principal  amount set forth
under the column entitled "Principal Amount" in Exhibit A hereto. Subject to the
provisions  of Section  1.03 below,  the  Maricopa  Notes shall bear no interest
until  an  Initial  Interest  Accrual  Date,  if any,  has  been  determined  in
accordance  with  Section 1.03 below.  The  Maricopa  Notes shall mature and the
principal  thereof shall be due and payable together with all accrued and unpaid
interest  thereon on their  respective  Stated  Maturities  set forth  under the
column entitled "Stated Maturity of Principal" in Exhibit A hereto, and shall be
issued in the form of registered  Maricopa  Notes without  coupons.  Each of the
Maricopa Notes shall be dated as of the date of its authentication.

         SECTION 1.02.  The Maricopa  Notes shall be issued to and registered in
the name of the Refunding Bond Trustee under the  applicable  Indenture of Trust
and shall be  non-transferable,  except as may be required to effect transfer to
any  successor  trustee to the Refunding  Bond Trustee  under such  Indenture of
Trust.  Principal  of, and premium,  if any, and interest on the Maricopa  Notes
will be payable at the office or agency of the  Company in The City and State of
New York.  The Maricopa  Notes shall be deemed fully paid, and the obligation of
the  Company  thereunder  shall be  terminated,  to the extent and in the manner
provided in Section 1.05.

         SECTION  1.03.  Each of the  three  series of  Maricopa  Notes has been
issued to the corresponding  Refunding Bond Trustee to secure the obligations of
the Company under the related Loan Agreement to repay the respective  Loan in an
amount equal to the respective Required Amounts.

         In the event of  failure  by the  Company  to make any  payment  of any
Required  Amount  when and as  required  by the  Company  under  any of the Loan
Agreements,  the  related  series of Maricopa  Notes shall bear  interest at the
annual rate  applicable  to such  series as set forth under the column  entitled
"Interest  Rate" in Exhibit A hereto from the last day to which  interest on the


                                       3
<PAGE>

corresponding  series of  Refunding  Bonds  has been  paid in full  prior to the
failure  of the  Company to pay such  Required  Amount  (such date being  herein
defined as the "Initial Interest Accrual Date"), and interest at such rate shall
be payable on the date due with respect to such Refunding  Bonds,  commencing on
the first  Interest  Payment  Date  applicable  to such  series set forth in the
column entitled  "Interest Payment Date" in Exhibit A hereto ("Interest  Payment
Date") following the Initial Interest Accrual Date.

         The Trustee may  conclusively  presume that no payments with respect to
interest on the Maricopa  Notes are due unless and until the Trustee  shall have
received a written  certificate  from the  applicable  Refunding  Bond  Trustee,
signed by an authorized officer of such Refunding Bond Trustee or such successor
trustee,  certifying  that the  Company  has  failed  to make a  payment  of any
Required Amount when and as required to be made by it under the any of the three
Loan  Agreements and  specifying  such Required  Amount,  the interest rate, the
Initial Interest Accrual Date, the Interest Payment Date and such other matters,
if any, as shall be  pertinent  to the  payment of  interest  on the  applicable
series of Maricopa  Notes.  The Trustee may rely and shall be fully protected in
acting  upon any such  certificate  and shall  have no duty with  respect to the
terms  specified in any such  certificate  other than to make it  available  for
inspection by the Company.

         SECTION  1.04.  The Maricopa  Notes shall be  redeemed,  in whole or in
part, at the principal  amount thereof plus any premium and any accrued interest
from the Initial  Interest Accrual Date to the redemption date, if the Refunding
Bond Trustee notifies the Trustee in writing that Refunding Bonds are subject to
redemption  as provided in Section  3.02 of the  Indentures  of Trust.  Any such
notice must be received by the Trustee no later than five days (unless a shorter
period of time is acceptable to the Trustee) prior to any redemption  date fixed
for the Refunding Bonds to be redeemed and shall specify the principal amount of
such Refunding  Bonds  anticipated as of the date of such notice to be redeemed,
the redemption date, the redemption  premium,  if any, and the amount of accrued
interest  anticipated  to be paid thereon.  In the event such notice is given to
the Trustee as  hereinabove  provided,  the  redemption  date of the  applicable
series of Maricopa Notes shall be the date on which the corresponding  series of
Refunding  Bonds are to be redeemed,  and on such date the said  Maricopa  Notes
shall be redeemed in the same principal  amount as the  corresponding  series of
Refunding Bonds in fact redeemed,  pursuant to Section 3.01 of the Indentures of
Trust.  The Company  shall  deposit in trust with the Trustee on the  redemption
date an amount of money sufficient to pay the principal amount, plus any premium
and accrued  interest,  if any, to the date fixed for redemption on the Maricopa
Notes to be redeemed (the "Redemption Price").  Upon presentation to the Trustee
of any of the  Maricopa  Notes by a  Refunding  Bond  Trustee for payment of the
Redemption Price, such Maricopa Notes so presented shall be redeemed and paid in
full. However,  if, in lieu of presenting the Maricopa Notes due for redemption,
the Refunding  Bond Trustee shall deliver such Maricopa Notes to the Trustee for
cancellation,  then and in that  event,  subject  to Section  1.05,  such of the
Maricopa Notes so presented for cancellation  shall be deemed fully paid, and if
any moneys shall have been deposited with the Trustee for such redemption,  then
such  moneys  shall  be paid  over to the  Company,  and the  Maricopa  Notes so
surrendered shall be canceled in accordance with Section 1.05.


                                       4
<PAGE>


         SECTION 1.05. Upon surrender by a Refunding Bond Trustee or the Company
to the Trustee  hereunder of any of the Maricopa  Notes for  cancellation,  such
notes shall be canceled by the Trustee and delivered to the Company and shall be
deemed fully paid and the obligations of the Company thereunder terminated.

         SECTION  1.06.  The  Maricopa  Notes  shall be  defeasible  pursuant to
Section 13.02 and Section 13.03 of the Indenture.

                                   ARTICLE TWO
                             FORM OF MARICOPA NOTES

         SECTION  2.01.  The Maricopa  Notes and the  Trustee's  certificate  of
authentication  to be endorsed  thereon are to be substantially in the following
form:

         Pursuant to Section 1.02 of the Second Supplemental  Indenture dated as
of March 11, 1998,  supplemental  to the Indenture,  dated as of March 11, 1998,
between Public Service  Company of New Mexico and The Chase  Manhattan  Bank, as
Trustee,  this  Note is  nontransferable,  except as may be  required  to effect
transfer to any  successor  trustee to the  Refunding  Bond  Trustee (as defined
herein).

                      PUBLIC SERVICE COMPANY OF NEW MEXICO

                 ____% Notes, Series ____, Due ________________

No.                                                          $
    ------------                                              ------------  

         PUBLIC  SERVICE  COMPANY OF NEW MEXICO,  a  corporation  organized  and
existing  under the laws of the State of New Mexico (herein called the "Company"
which  term  includes  any  successor  Person  under the  Indenture  hereinafter
referred to), for value received,  hereby promises to pay to First Security Bank
of New Mexico, N.A., as Trustee under the Indenture of Trust (as defined herein)
on [ * ](unless  this Note shall have been called for  previous  redemption  and
provision made for the payment of the redemption  price thereof),  the principal
sum of $[ *] and to pay interest  thereon from the Initial Interest Accrual Date
(as  defined  herein)  to the date of payment of this Note at the rate of [ * ]%
per annum payable on the first Interest Payment Date of [ * ]and [ * ] following
the Initial Interest Accrual Date.

         Payment of the principal of and premium,  if any, and any such interest
on this Note will be made at the office or agency of the Company  maintained for
that  purpose in The City of New York,  in such coin or  currency  of the United
States of  America as at the time of  payment  is legal  tender  for  payment of
public and private debts.

- ----------

*Insert as  appropriate  for each series of  Maricopa  Notes,  the  designation,
principal  amount,  Interest Rate,  Stated Maturities of Principal and Interest,
Interest Payment Dates, and other particulars specified in Exhibit A hereto with
respect to such series.

                                       5
<PAGE>


         This  Note is one of a duly  authorized  issue of  senior  notes of the
Company  (herein  called  the  "Notes"),  issued and to be issued in one or more
series  under an  Indenture,  dated as of March  11,  1998  (herein  called  the
"Indenture",  which  term  shall  have  the  meaning  assigned  to  it  in  such
instrument),  between  the  Company  and The Chase  Manhattan  Bank,  as Trustee
(herein  called the "Trustee",  which term includes any successor  trustee under
the Indenture), and reference is hereby made to the Indenture for a statement of
the respective rights,  limitations of rights,  duties and immunities thereunder
of the  Company,  the Trustee and the Holders of the Notes and of the terms upon
which the Notes are, and are to be, authenticated and delivered, to all of which
the Holder,  by  accepting  this Note,  assents.  This Note is one of the series
designated on the face hereof, limited in aggregate principal amount to $[ * ].

         The Indenture permits, with certain exceptions as therein provided, the
amendment  thereof and the  modification  of the rights and  obligations  of the
Company and the rights of the Holders of the Notes of each series to be affected
under the  Indenture at any time by the Company and the Trustee with the consent
of the  Holders  of a  majority  in  principal  amount  of the Notes at the time
Outstanding  of  each  series  to  be  affected.  The  Indenture  also  contains
provisions  permitting the Holders of specified  percentages in principal amount
of the Notes of each series at the time Outstanding, on behalf of the Holders of
all Notes of such  series,  to waive  compliance  by the  Company  with  certain
provisions  of the  Indenture  and to waive  certain  past  defaults  under  the
Indenture  and  their  consequences,  provided,  however,  that if any such past
default  affects  more than one series of Notes,  the  Holders of a majority  in
aggregate  principal  amount  of  the  Outstanding  Notes  of all  such  series,
considered as one class,  shall have the right to waive such past  default,  and
not the Holders of the Notes of any one such series.  Any such consent or waiver
by the Holder of this Note shall be conclusive  and binding upon such Holder and
upon  all  future  Holders  of  this  Note  and  of any  Note  issued  upon  the
registration  of  transfer  hereof or in exchange  therefor  or in lieu  hereof,
whether or not notation of such consent or waiver is made upon this Note.

         As provided  in and subject to the  provisions  of the  Indenture,  the
Holder of this Note shall not have the right to institute  any  proceeding  with
respect to the Indenture or for the  appointment of a receiver or trustee or for
any other remedy thereunder,  unless such Holder shall have previously given the
Trustee  written  notice of a  continuing  Event of Default  with respect to the
Notes of this  series,  the  Holders  of not less than a majority  in  aggregate
principal  amount of the Notes of all series at the time  Outstanding in respect
of which an Event of Default shall have occurred and be  continuing,  considered
as one  class,  shall have made  written  request  to the  Trustee to  institute
proceedings  in respect of such Event of  Default  as Trustee  and  offered  the
Trustee reasonable  indemnity,  and the Trustee shall not have received from the
Holders of a  majority  in  principal  amount of Notes of all series at the time
Outstanding  in respect of which an Event of Default  shall have occurred and be
continuing, considered as one class, a direction inconsistent with such request,
and shall  have  failed to  institute  any such  proceeding,  for 60 days  after
receipt of such notice, request and offer of indemnity.  The foregoing shall not
apply to any suit  instituted by the Holder of this Note for the  enforcement of
any payment of principal  hereof or interest  hereon on or after the  respective
due dates expressed herein.


                                       6
<PAGE>

         No reference  herein to the  Indenture and no provision of this Note or
of the Indenture  shall alter or impair the obligation of the Company,  which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times,  place and rate, and in the coin or currency,  herein
prescribed.

         The Notes of this series have been issued to First Security Bank of New
Mexico,  N.A.,  Albuquerque,   New  Mexico,  as  trustee  (the  "Refunding  Bond
Trustee"),  under the Loan Agreement dated as of [ * ]between  Maricopa  County,
Arizona  Pollution  Control  Corporation  (the  "Authority")  and the Company as
supplemented  by the First  Supplement to Loan  Agreement  dated as of March 11,
1998  between the  Authority  and the  Company as  collateral  security  for the
payment of the principal of,  premium,  if any, and interest due (the  "Required
Amounts") on the Pollution Control Revenue Refunding Bonds,  199[*] Series [ * ]
(Public  Service  Company  of New  Mexico  Palo  Verde  Project),  issued by the
Authority under the Indenture of Trust (the "Refunding Bonds").

         In the event of  failure  by the  Company  to make any  payment  of any
Required  Amount when and as required to be made by it under the Loan Agreement,
this Note  shall  bear  interest  from the last date to which  interest  on such
Refunding Bonds has been paid in full prior to the failure of the Company to pay
such Required  Amount (such date being herein  defined as the "Initial  Interest
Accrual  Date"),  at  the  rate  of [ * ]% per  annum  payable  on  the  [first]
[fifteenth] day of [ * ] and the [first]  [fifteenth] day of [ * ] of each year,
commencing on the first  Interest  Payment Date  following the Initial  Interest
Accrual Date.

         The Trustee may  conclusively  presume that no payments with respect to
interest on the Notes of this series are due unless and until the Trustee  shall
have received a written certificate from the Refunding Bond Trustee or successor
trustee  under the  Indenture  of Trust and Pledge dated as of [ * ] between the
Authority  and the  Refunding  Bond  Trustee  as  supplemented  by  Supplemental
Indenture  of Trust and Pledge  dated as of March 11,  1998 (the  "Indenture  of
Trust"),  signed by an authorized  officer of the Refunding Bond Trustee or such
successor  trustee,  certifying that the Company has failed to make a payment of
any  Required  Amount  when  and as  required  to be made by it  under  the Loan
Agreement and specifying such Required Amount, the Initial Interest Accrual Date
and such other matters, if any, as shall be pertinent to the payment of interest
on the Notes of this series.  The Trustee may rely and shall be fully  protected
in acting upon any such  certificate  and shall have no duty with respect to the
matters  specified in any such  certificate  other than to make it available for
inspection by the Company.

         Upon the surrender for cancellation,  at any time or from time to time,
of Notes of this series by the Refunding Bond Trustee,  successor  trustee under
the Indenture of Trust, or the Company to the Trustee,  the Notes so surrendered
shall be deemed fully paid and the obligations of the Company  thereunder  shall
be terminated,  and such Notes shall be canceled by the Trustee and delivered to
the Company.


                                       7
<PAGE>

         This Note is nontransferable except to effect transfer to any successor
trustee to the Refunding Bond Trustee,  any such transfer to be made as provided
in the  Indenture and subject to certain  limitations  therein set forth by, the
registration  of transfer of this Note in the Note  Register,  upon surrender of
this Note for registration of transfer at the office or agency of the Company in
any place where the  principal  of and any premium and interest on this Note are
payable, duly endorsed by, or accompanied by a written instrument of transfer in
form  satisfactory  to the Company and the Note  Registrar duly executed by, the
Holder hereof or his attorney duly  authorized in writing,  and thereupon one or
more new Notes of this series and of like tenor, of authorized denominations and
for the  same  aggregate  principal  amount,  will be  issued  to the  successor
Refunding Bond Trustee.

         If an Event of Default with respect to Notes of this series shall occur
and be  continuing,  the  principal of the Notes and this Series may be declared
due and payable in the manner and with the effect provided in the Indenture.

         No  recourse  shall  be had  for the  payment  of the  principal  of or
premium, if any, or interest,  if any, on any Notes, or any part thereof, or for
any claim based thereon or otherwise in respect thereof,  or of the indebtedness
represented  thereby,  or upon any obligation,  covenant or agreement under this
Indenture, against any incorporator, stockholder, employee, officer or director,
as such,  past,  present  or  future of the  Company  or of any  predecessor  or
successor  corporation  (either directly or through the Company or a predecessor
or successor  corporation),  whether by virtue of any constitutional  provision,
statute or rule of law, or by the  enforcement  of any  assessment or penalty or
otherwise;  it being expressly agreed and understood that this Indenture and all
Notes  are  solely  corporate  obligations,   and  that  no  personal  liability
whatsoever  shall attach to, or be incurred by, any  incorporator,  stockholder,
employee, officer or director, past, present or future, of the Company or of any
predecessor  or  successor  corporation,  because  of  the  indebtedness  hereby
authorized  or  under  or by  reason  of any of the  obligations,  covenants  or
agreements  contained in this  Indenture or in any of the Notes or to be implied
herefrom or therefrom,  and that any such personal liability is hereby expressly
waived and released as a condition of, and as part of the consideration for, the
execution of this Indenture and the issuance of the Notes.

         The Notes of this series are issuable only in  registered  form without
coupons  in  denominations  of $1,000  and any  integral  multiple  thereof.  As
provided in the Indenture and subject to certain  limitations therein set forth,
Notes of this series are exchangeable  for a like aggregate  principal amount of
Notes of this series and of like tenor of a different  authorized  denomination,
as requested by the Holder surrendering the same.

         No service charge shall be made for any such  registration  of transfer
or exchange,  but the Company may require  payment of a sum  sufficient to cover
any tax or other governmental charge payable in connection therewith.


                                       8
<PAGE>

         Prior to due presentment of this Note for registration of transfer, the
Company,  the  Trustee and any agent of the Company or the Trustee may treat the
Person in whose  name  this  Note is  registered  as the  owner  hereof  for all
purposes,  whether or not this Note be overdue,  and neither  the  Company,  the
Trustee nor any such agent shall be affected by notice to the contrary.

         The Notes of this series shall be  redeemable as provided in the Second
Supplemental  Indenture,  dated  as of  March  11,  1998,  supplemental  to  the
Indenture.

         All terms used in this Note which are  defined in the  Indenture  shall
have the meanings assigned to them in the Indenture.

         Unless the  certificate of  authentication  hereon has been executed by
the  Trustee  referred  to below by manual  signature,  this  Note  shall not be
entitled to any benefit under the  Indenture or be valid or  obligatory  for any
purpose.

         IN WITNESS  WHEREOF,  the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:
       ------------------------

                                     PUBLIC SERVICE COMPANY OF
                                       NEW MEXICO


                                     By
                                        ------------------------------
                                              [TITLE]

Attest:

- ------------------

                         CERTIFICATION OF AUTHENTICATION
                         -------------------------------

                  This is one of the  Notes  of the  series  designated  therein
referred to in the within-mentioned Indenture.


Dated:
       ------------------------
                                     THE CHASE MANHATTAN BANK, as Trustee


                                     By
                                        ------------------------------
                                              Authorized Officer


                                       9
<PAGE>

                                  ARTICLE THREE
                        ORIGINAL ISSUE OF MARICOPA NOTES

         SECTION 3.01.  The Maricopa  Notes of the three series set forth in the
column entitled "Series of Maricopa Notes" in the respective  principal  amounts
thereof  set forth  under the column  entitled  "Principal  Amount" in Exhibit A
hereto may, upon execution of this Second Supplemental  Indenture,  or from time
to time  thereafter,  be  executed  on behalf of the  Company by any  officer or
employee  authorized to do so by a Board  Resolution,  under its corporate  seal
affixed thereto or reproduced thereon attested by its Secretary or by one of its
Assistant  Secretaries and delivered to the Trustee for authentication,  and the
Trustee  shall  thereupon  authenticate  and  deliver  said  Maricopa  Notes  in
accordance with a Company Order delivered to the Trustee by the Company.

                                  ARTICLE FOUR
                           PAYING AGENT AND REGISTRAR

         SECTION  4.01.  The Chase  Manhattan  Bank will be the Paying Agent and
Note Registrar for the Maricopa Notes.

                                  ARTICLE FIVE
                                SUNDRY PROVISIONS

         SECTION 5.01. The Company  hereby  covenants that so long as any of the
Maricopa  Notes  shall  remain  outstanding,  the Company  shall  deliver to the
Trustee as soon as available copies  (certified by an officer or employee of the
Company to be true) of the  Indentures  of Trust,  the First  Supplemental  Loan
Agreements,  the Loan  Agreements and copies of any  supplements,  amendments or
replacements thereto,  together with such other documents and instruments as the
Trustee  may  reasonably  request  from  time  to time in  connection  with  the
transactions  contemplated  hereby. The Trustee shall have no duty to examine or
take any other  action with  respect to any such  documents  or  instruments  so
received  by it,  other  than to retain  in its  files  any of same  which it so
receives and to make same available for inspection  during normal business hours
by any owner of the Maricopa Notes.

         SECTION  5.02.  Except as otherwise  expressly  provided in this Second
Supplemental  Indenture or in the form of Maricopa  Notes or  otherwise  clearly
required by the context hereof or thereof, all terms used herein or in said form
of the Maricopa  Notes that are defined in the Indenture  shall have the several
meanings respectively assigned to them thereby.



                                       10
<PAGE>

         SECTION  5.03.  The   Indenture,   as   supplemented   by  this  Second
Supplemental  Indenture,  is in all respects  ratified and  confirmed,  and this
Second  Supplemental  Indenture  shall be deemed  part of the  Indenture  in the
manner and to the extent herein and therein provided.

         SECTION 5.04. The Trustee  hereby  accepts the trusts herein  declared,
provided, created,  supplemented, or amended and agrees to perform the same upon
the terms and  conditions  herein and in the  Indenture,  set forth and upon the
following terms and conditions:

         The Trustee shall not be responsible in any manner whatsoever for or in
         respect of the  validity or  sufficiency  of this  Second  Supplemental
         Indenture or for or in respect of the recitals contained herein, all of
         which  recitals are made by the Company  solely.  In general,  each and
         every term and condition contained in Article VI of the Indenture shall
         apply to and form part of this Second  Supplemental  Indenture with the
         same force and effect as if the same were herein set forth in full with
         such  omissions,   variations,  and  insertions,  if  any,  as  may  be
         appropriate  to make the same conform to the  provisions of this Second
         Supplemental Indenture.

         To the extent  permitted by Section 6.01 of the Indenture,  and without
         limitation of Section 6.03 of the  Indenture,  the Trustee may rely and
         shall  be  protected  in  acting  upon  any  resolution,   certificate,
         statement,  instrument,  opinion,  report, notice, request,  direction,
         consent, order, bond, debenture,  note, other evidence of indebtedness,
         or  other  paper  or  document  (including,   without  limitation,  the
         Indentures of Trust, the Loan Agreements,  the First  Supplemental Loan
         Agreements, or any notice,  certificate, or other document provided for
         in the Indentures of Trust, the Loan Agreements, the First Supplemental
         Loan Agreements, or this Second Supplemental Indenture) believed by the
         Trustee  to be  genuine  and to have been  signed or  presented  by the
         proper party or parties.

         SECTION  5.05.  This  instrument  may  be  executed  in any  number  of
counterparts,  each of which so executed shall be deemed to be an original,  but
all such counterparts shall together constitute but one and the same instrument.


                                       11
<PAGE>


         IN  WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Second
Supplemental Indenture to be duly executed, and their respective corporate seals
to be  hereunto  affixed  and  attested,  all as of the day and year first above
written.

                                       PUBLIC SERVICE COMPANY OF
                                          NEW MEXICO

                                       By:
                                           -----------------------------
                                                M.H. Maerki
                                                Senior Vice President and
                                                Chief Financial Officer

Attest:


- -----------------------------
Secretary

                                       THE CHASE MANHATTAN BANK,
                                          as Trustee


                                       By:
                                           -----------------------------
                                                T.J. Foley
                                                Vice President


Attest:


- -----------------------------
Senior Trust Officer




                                       12
<PAGE>


STATE OF NEW MEXICO  )
                     ) ss.:
COUNTY OF BERNALILLO )


         On the ____ day of March,  1998 before me personally came M.H.  Maerki,
to me known,  who, being by me duly sworn,  did depose and say that he is Senior
Vice  President and Chief  Financial  Officer of Public  Service  Company of New
Mexico,  one of the  corporations  described in and which executed the foregoing
instrument; that he knows the seal of said corporation; that the seal affixed to
said  instrument is such corporate  seal; that it was so affixed by authority of
the Board of Directors of said corporation;  and that he signed his name thereto
by like authority.

                                        ---------------------------
                                               Notary Public

                                        My Commission Expires:

                                        ---------------------------


STATE OF NEW YORK   )
                    ) ss.:
COUNTY OF NEW YORK  )


         On the 11th day of March,  1998,  before me personally came T.J. Foley,
to me known,  who,  being by me duly  sworn,  did depose and say that he is Vice
President of The Chase Manhattan Bank, one of the corporations  described in and
which  executed  the  foregoing  instrument;  that  he  knows  the  seal of said
corporation;  that the seal affixed to said  instrument is such corporate  seal;
that  it was so  affixed  by  authority  of  the  Board  of  Directors  of  said
corporation; and that he signed his name thereto by like authority.




                                        ---------------------------
                                               Notary Public



                                       13
<PAGE>

<TABLE>
<CAPTION>

                                        EXHIBIT A - DESCRIPTION OF 3 SERIES OF MARICOPA NOTES
                                                                                                                     Loan Agreement
                                                                                      Interest                          and First   
       Pollution Control        Series of     Principal    Stated Maturity  Interest  Payment      Indenture of        Supplemental
    Revenue Refunding Bonds  Maricopa Notes     Amount       of Principal     Rate     Dates           Trust         Loan Agreements
    -----------------------  --------------   ---------    ---------------  --------  --------     ------------      ---------------
<S> <C>                     <C>              <C>          <C>               <C>      <C>         <C>                 <C>
1.  $37,300,000 Maricopa      5.75% Notes,   $37,300,000  November 1, 2022  5.75%    May 1       Indenture of Trust  Loan Agreement
    County, Arizona         Series M-1992-A,                                         November 1  and Pledge dated    dated as of   
    Pollution Control       Due November 1,                                                      as of November 1,   November 1,   
    Corporation, Pollution       2022                                                            1992 between the    1992 between  
    Control Revenue                                                                              Authority and the   the Authority 
    Refunding Bonds, 5.75%                                                                       Refunding Bond      and the Com-  
    1992 Series A (Public                                                                        Trustee as          pany as sup-  
    Service Company of                                                                           supplemented by     plemental by  
    New Mexico Palo Verde                                                                        Supplemental        the First     
    Project).                                                                                    Indenture of Trust  Supplement to 
                                                                                                 and Pledge dated    Loan Agree-   
                                                                                                 as of March 11,     ment as of    
                                                                                                 1998                March 11,     
                                                                                                                     1998

2.  $36,000,000 Maricopa     6 3/8% Notes,   $36,000,000  August 15, 2023   6-3/8%  February 15  Indenture of Trust  Loan Agreement 
    County, Arizona         Series M-1993-A,                                        August 15    and Pledge dated    dated as of
    Pollution Control       Due August 15,                                                       as of August 15,    August 15, 1993
    Corporation, 6 3/8%           2023                                                           1993 between the    between the
    Pollution Control                                                                            Authority and the   Authority and  
    Revenue Bonds, 1993                                                                          Refunding Bond      the Company as 
    Series A (Public                                                                             Trustee as          supplemented   
    Service Company of                                                                           supplemented by     by the First   
    New Mexico Palo Verde                                                                        Supplemental        Supplement to
    Project).                                                                                    Indenture of Trust  Loan Agreement
                                                                                                 and Pledge dated    dated as of
                                                                                                 as of March 11,     March 11, 1998
                                                                                                 1998

3.  $23,000,000 Maricopa     6.30% Notes,     $23,000,000  December 1, 2026  6.30%  June 1       Indenture of Trust  Loan Agreement 
    County, Arizona          Series M-1996-A,                                       December 1   and Pledge dated    dated as of    
    Pollution Control       Due December 1,                                                      as of December 1,   December 1,    
    Corportion, 6.30%            2026                                                            1996 between the    1996 between   
    Pollution Control                                                                            Authority and the   the Authority 
    Revenue Refunding                                                                            Refunding Bond      and the Company
    Bonds, 1996 Series A                                                                         Trustee as          as supplemented
    (Public Service                                                                              supplemented by     by the First   
    Company of New                                                                               Supplemental        Supplement to  
    Mexico Palo Verde                                                                            Indenture of Trust  Loan Agreement
    Project)                                                                                     and Pledge dated    dated as of 
                                                                                                 as of March 11,     March 11, 1998
                                                                                                 1998

Capitalized  terms used and not  otherwise  defined in this Exhibit A shall have the meaning  given them in the Second  Supplemental
Indenture, of which this Exhibit A forms a part.

</TABLE>



- --------------------------------------------------------------------------------



                                CREDIT AGREEMENT

                           Dated as of March 11, 1998
                                      among


                      PUBLIC SERVICE COMPANY OF NEW MEXICO
                                  as Borrower,


                        THE INITIAL LENDERS NAMED HEREIN,
                                   as Lenders,


                            THE CHASE MANHATTAN BANK
                            as Administrative Agent,


                                 CITIBANK, N.A.
                              as Syndication Agent,


                    MORGAN GUARANTY TRUST COMPANY OF NEW YORK
                             as Documentation Agent,


                             CHASE SECURITIES, INC.
                                  as Arranger,


                                       and

               THE CHASE MANHATTAN BANK, CITIBANK, N.A. AND MORGAN
                                 GUARANTY TRUST
                               COMPANY OF NEW YORK
                            as Initial Issuing Banks,


- --------------------------------------------------------------------------------

NYDOCS03/70502 3
<PAGE>


                                TABLE OF CONTENTS

                                                                          Page
                                                                          ----

                                    ARTICLE I

                        DEFINITIONS AND ACCOUNTING TERMS

SECTION 1.01.  Certain Defined Terms......................................  1
SECTION 1.02.  Computation of Time Periods................................ 14
SECTION 1.03.  Accounting Terms........................................... 15

                                   ARTICLE II

                        AMOUNTS AND TERMS OF THE ADVANCES

SECTION 2.01.  The Revolving Credit Advances.............................. 15
SECTION 2.02.  Making the Revolving Credit Advances....................... 15
SECTION 2.03.  Fees....................................................... 17
SECTION 2.04.  Reduction of the Commitments............................... 18
SECTION 2.05.  Repayment.................................................. 18
SECTION 2.06.  Interest................................................... 18
SECTION 2.07.  Additional Interest on Eurodollar Rate Advances............ 19
SECTION 2.08.  Interest Rate Determination and Protection................. 19
SECTION 2.09.  Rollover and Conversion of Revolving Credit Advances....... 20
SECTION 2.10.  Prepayments of Revolving Credit Advances................... 21
SECTION 2.11.  Increased Costs............................................ 22
SECTION 2.12.  Illegality................................................. 24
SECTION 2.13.  Payments and Computations.................................. 24
SECTION 2.14.  Taxes...................................................... 25
SECTION 2.15.  Sharing of Payments, Etc................................... 27
SECTION 2.16.  Letters of Credit.......................................... 28
SECTION 2.17.  Use of Proceeds............................................ 32

                                  ARTICLE III

                     CONDITIONS TO EFFECTIVENESS AND LENDING

SECTION 3.01.  Conditions Precedent to Effectiveness...................... 32
SECTION 3.02.  Conditions Precedent to Initial Extension of Credit........ 33
SECTION 3.03.  Conditions Precedent to Each Borrowing and to Rollover
               of Advances................................................ 33
SECTION 3.04.  Determinations Under Section 3.01, 3.02, or 3.03........... 34


NYDOCS03/70502 3
<PAGE>


                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES

SECTION 4.01.  Representations and Warranties of the Borrower............. 35

                                   ARTICLE V

                            COVENANTS OF THE BORROWER

SECTION 5.01.  Affirmative Covenants...................................... 39
SECTION 5.02.  Negative Covenants......................................... 43

                                   ARTICLE VI

                                EVENTS OF DEFAULT

SECTION 6.01.  Events of Default.......................................... 46
SECTION 6.02.  Actions in Respect of the Letters of Credit upon Default... 48

                                  ARTICLE VII

                                   THE AGENTS

SECTION 7.01.  Authorization and Action................................... 51
SECTION 7.02.  Administrative Agent's Reliance, Etc....................... 51
SECTION 7.03.  Chase, Citibank, Morgan and Affiliates..................... 52
SECTION 7.04.  Lender Party Credit Decision............................... 52
SECTION 7.05.  Indemnification............................................ 52
SECTION 7.06.  Successor Agents........................................... 54
SECTION 7.07.  Syndication Agent, Documentation Agent..................... 54

                                  ARTICLE VIII

                                  MISCELLANEOUS

SECTION 8.01.  Amendments, Etc............................................ 55
SECTION 8.02.  Notices, Etc............................................... 55
SECTION 8.03.  No Waiver; Remedies........................................ 56
SECTION 8.04.  Costs, Expenses and Taxes.................................. 56
SECTION 8.05.  Right of Set-off........................................... 57
SECTION 8.06.  Binding Effect............................................. 57
SECTION 8.07.  Assignments and Participations............................. 57
SECTION 8.08.  Governing Law.............................................. 60
SECTION 8.09.  Execution in Counterparts.................................. 60
SECTION 8.10.  Waiver of Jury Trial....................................... 61

NYDOCS03/70502 3

<PAGE>


EXHIBITS
- --------

Exhibit A   -   Form of Note
Exhibit B   -   Form of Notice of Borrowing
Exhibit C   -   Form of Notice of Rollover
Exhibit D   -   Form of Assignment & Acceptance
Exhibit E   -   Form of Opinion of Keleher & McLeod, P.A.
Exhibit F   -   Form of Opinion of Winthrop, Stimson, Putnam & Roberts
Exhibit G   -   Form of Opinion of Snell & Wilmer
Exhibit H   -   Form of Accounting Firm Certificate


SCHEDULES
- ---------

Schedule I        -  Commitments and Applicable Lending Offices
Schedule II       -  Acceptable Accounting Firms
Schedule 4.01(b)  -  Subsidiaries
Schedule 4.01(m)  -  Electric Franchises
Schedule 4.01(n)  -  ERISA Plans
Schedule 4.01(v)  -  Material Leases
Schedule 4.01(w)  -  Indebtedness
Schedule 4.01(x)  -  Material Lease Interest Payments and Discount Rate

NYDOCS03/70502 3

<PAGE>

                           REVOLVING CREDIT AGREEMENT

                           Dated as of March 11, 1998

                  PUBLIC SERVICE COMPANY OF NEW MEXICO, a New Mexico corporation
(the  "Borrower"),  the banks,  financial  institutions and other  institutional
lenders listed on the signature pages hereof (the "Banks"),  THE CHASE MANHATTAN
BANK ("Chase"),  as  administrative  agent (together with any successor  thereto
appointed  pursuant  to  Section  7.06,  the  "Administrative   Agent"),   CHASE
SECURITIES,   INC.  ("CSI"),  as  arranger  (the  "Arranger"),   CITIBANK,  N.A.
("Citibank"),  as syndication agent (the "Syndication  Agent"),  MORGAN GUARANTY
TRUST COMPANY OF NEW YORK ("Morgan"), as documentation agent (the "Documentation
Agent"  and,  together  with the  Administrative  Agent,  the  Arranger  and the
Syndication  Agent,  the "Agents") and  Citibank,  Chase and Morgan,  as Issuing
Banks,  for the Lender  Parties (as  hereinafter  defined)  hereunder,  agree as
follows:

PRELIMINARY STATEMENT:

                  The Borrower has requested,  and the Agents and the Banks have
agreed,  to enter into this Agreement in order to provide financing for a period
of five years on the terms and conditions set forth in this Agreement.

                  NOW,  THEREFORE,  for and in consideration of the premises and
of the mutual  covenants and  agreements  contained  herein,  the Borrower,  the
Agents and the Banks do hereby agree as follows:


                                    ARTICLE I

                        DEFINITIONS AND ACCOUNTING TERMS


                  SECTION  1.01.   Certain   Defined  Terms.  As  used  in  this
Agreement,  the following terms shall have the following meanings (such meanings
to be equally  applicable  to both the  singular  and plural  forms of the terms
defined):

                  "Administrative  Agent"  has  the  meaning  specified  in  the
recital of parties to this Agreement.

                  "Advance"  means a  Revolving  Credit  Advance  or a Letter of
Credit Advance, as the case may be.


NYDOCS03/70502 3
<PAGE>
                                       2



                  "Affiliate"  means,  as to any Person,  any other Person that,
         directly or indirectly,  controls,  is controlled by or is under common
         control with such Person or is a director or officer of such Person.

                  "Agents"  has the meaning  specified in the recital of parties
         to this Agreement.

                  "Applicable Lending Office" means, with respect to each Lender
         Party,  such Lender  Party's  Domestic  Lending Office in the case of a
         Base Rate Advance and such Lender Party's  Eurodollar Lending Office in
         the case of a Eurodollar Rate Advance.

                  "Applicable  Margin"  means,  as of any date, a percentage per
         annum determined by reference to the Bond Rating in effect on such date
         as set forth below:


                        Applicable Margin  Applicable Margin   
    Bond Rating           for Base Rate     for Eurodollar     Fees for Letters
    Moody's/S&P             Advances         Rate Advances         of Credit
    -----------         -----------------  -----------------   ----------------

Baa2 or BBB or above         0.000%             0.3750%             0.3750%

below Baa2 and BBB but       0.000%             0.4500%             0.4500%
at least Baa3 or BBB-

below Baa3 and BBB- but      0.000%             0.6250%             0.6250%
at least Ba1 or BB+

below Ba1 and BB+ but        0.000%             1.0000%             1.0000%
at least Ba2 or BB

below Ba2 and BB             0.2500%            1.2500%             1.2500%

                  "Assignment and Acceptance" means an assignment and acceptance
         entered into by a Lender Party and an Eligible  Assignee,  and accepted
         by the  Administrative  Agent, in  substantially  the form of Exhibit D
         hereto.

                  "Available Amount" of any Letter of Credit means, at any time,
         the maximum amount available to be drawn under such Letter of Credit at
         such time  (assuming  compliance  at such time with all  conditions  to
         drawing).

<PAGE>
                                       3


                  "Base Rate" means, for any period, a fluctuating interest rate
         per annum as shall be in effect  from time to time which rate per annum
         shall at all times be equal to the higher of:

                           (a) the rate of interest  announced publicly by Chase
                  in New York,  New York,  from time to time,  as  Chase's  base
                  rate; or

                           (b) for any day 2 of one  percent per annum above the
                  weighted  average  of the  rates on  overnight  Federal  funds
                  transactions  with  members  of  the  Federal  Reserve  System
                  arranged by Federal funds  brokers,  as published for such day
                  (or, if such day is not a Business Day, for the next preceding
                  Business Day) by the Federal  Reserve Bank of New York, or, if
                  such rate is not so published  for any day which is a Business
                  Day,  the  average  of the  quotations  for  such  day on such
                  transactions  received  by  Chase  from  three  Federal  funds
                  brokers of recognized standing selected by it.

                  "Base Rate Advance"  means an Advance which bears  interest as
         provided in Section 2.06(a)(i).

                  "Bond Rating" means, as of any date, the higher of the ratings
         that have been most recently announced by either Moody's or S&P, as the
         case  may be,  for  senior  unsecured  debt  in  effect  on such  date,
         provided,  however, that if, for either Moody's or S&P, no rating is in
         effect,  the rating  from  Moody's or S&P,  as the case may be, on such
         date  shall be  deemed to be Ba2 or BB, as  applicable;  and,  provided
         further,  that if, as of any date,  either  Moody's  or S&P shall  have
         ceased to exist or to be in the business of rating securities,  (i) the
         Bond  Rating  with  respect to  whichever  of Moody's or S&P shall have
         ceased to exist or to rate  securities  shall mean the rating of senior
         unsecured debt by the applicable  Substitute Rating Agency in effect on
         such date and (ii)  each  rating  specified  in any Loan  Document  for
         either Moody's or S&P, as applicable,  shall be deemed to be the rating
         of such Substitute Rating Agency  reasonably  equivalent to such rating
         of Moody's or S&P.

                  "Borrowing"  means a borrowing  consisting of Revolving Credit
         Advances of the same Type made on the same day by the Lenders.

                  "Business  Day" means a day of the year on which banks are not
         required or authorized to close in New York City and, if the applicable
         Business Day relates to any Eurodollar Rate Advances, on which dealings
         are carried on in the London interbank market.

<PAGE>
                                       4


                  "Commitment"  means a Revolving Credit  Commitment or a Letter
         of Credit Commitment.

                  "Consolidated"   refers  to  the  consolidation  of  financial
         statements in accordance with GAAP.

                  "Convert",  "Conversion"  and  "Converted"  each  refers  to a
         Rollover  of  Advances  pursuant  to  Section  2.09 or 2.11  that  also
         involves  the  conversion  of  Advances  of one Type into  Advances  of
         another Type.

                  "Chase" has the meaning specified in the recital of parties to
         this Agreement.

                  "Citibank" has the meaning specified in the recital of parties
         to this Agreement.

                  "CSI" has the meaning  specified  in the recital of parties to
         this Agreement.

                  "Default"  means any Event of  Default or any event that would
         constitute an Event of Default but for the  requirement  that notice be
         given or time elapse or both.

                  "Domestic  Lending  Office" means,  with respect to any Lender
         Party,  the office of such  Lender  Party  specified  as its  "Domestic
         Lending  Office"  opposite  its name on  Schedule  I  hereto  or in the
         Assignment and  Acceptance  pursuant to which it became a Lender Party,
         or such other office of such Lender Party as such Lender Party may from
         time to time specify to the Borrower and the Administrative Agent.

                  "Eastern  Interconnection  Project  Leases"  means the Eastern
         Interconnection  Project Leases listed in Schedule  4.01(v),  "Material
         Leases".

                  "Effective Date" means March 11, 1998.

                  "Eligible  Assignee"  means (a) with respect to the  Revolving
         Credit Facility (i) any commercial bank or savings and loan association
         having a net  worth in  excess  of  $250,000,000;  (ii) any  commercial
         finance company, or wholly owned finance subsidiary of any corporation,
         having a net  worth in  excess of  $250,000,000;  (iii)  any  insurance
         company having a net worth in excess of  $250,000,000  or (iv) any Bank
         or any  Affiliate  of any Bank and (b) with  respect  to the  Letter of
         Credit Facility,  a Person that is an Eligible Assignee under subclause
         (i) or (iv) of clause (a) of this  definition  and is  approved  by the
         Administrative Agent and the Borrower.

<PAGE>
                                       5


                  "Environmental  Law"  means any  federal,  state or local law,
         rule,   regulation,   order,  writ,   judgment,   injunction,   decree,
         determination or award relating to the environment, health or safety or
         to the  release  or  threatened  release  of  any  materials  into  the
         environment,  including,  without  limitation,  the Clean  Air Act,  as
         amended,  the Clean Water Act of 1977,  as amended,  the  Comprehensive
         Environmental  Response,  Compensation  and  Liability  Act of 1980, as
         amended,  the Hazardous Materials  Transportation Act, as amended,  the
         Toxic Substance Control Act, as amended, and the Resource  Conservation
         and Recovery Act of 1976, as amended.

                  "ERISA" means the Employee  Retirement  Income Security Act of
         1974, as amended from time to time, and the regulations promulgated and
         rulings issued thereunder.

                  "ERISA  Affiliate"  of any Person  means any other Person that
         for  purposes  of  Title  IV of  ERISA  is a  member  of such  Person's
         controlled group, or under common control with such Person,  within the
         meaning of Section 414 of the Internal Revenue Code.

                  "ERISA  Event"  with  respect  to any  Person  means  (a)  the
         occurrence of a reportable event, within the meaning of Section 4043 of
         ERISA,  with  respect  to any Plan of such  Person  or any of its ERISA
         Affiliates  unless the 30-day notice  requirement  with respect to such
         event  has  been  waived  by  the  PBGC;   (b)  the  provision  by  the
         administrator of any Plan of such Person or any of its ERISA Affiliates
         of a notice of intent to  terminate  such  Plan,  pursuant  to  Section
         4041(a)(2) of ERISA  (including  any such notice with respect to a plan
         amendment  referred to in Section 4041(e) of ERISA);  (c) the cessation
         of  operations  at a  facility  of  such  Person  or any  of its  ERISA
         Affiliates in the circumstances  described in Section 4062(e) of ERISA;
         (d) the withdrawal by such Person or any of its ERISA Affiliates from a
         Multiple  Employer  Plan  during  a  plan  year  for  which  it  was  a
         substantial  employer,  as defined in Section  4001(a)(2) of ERISA; (e)
         the  failure by such  Person or any of its ERISA  Affiliates  to make a
         payment to a Plan required  under Section  302(f)(1) of ERISA;  (f) the
         adoption of an  amendment  to a Plan of such Person or any of its ERISA
         Affiliates  requiring the provision of security to such Plan,  pursuant
         to  Section  307 of  ERISA;  or (g)  the  institution  by the  PBGC  of
         proceedings  to  terminate  a Plan of such  Person  or any of its ERISA
         Affiliates, pursuant to Section 4042 of ERISA, or the occurrence of any
         event or  condition  described  in  Section  4042 of ERISA  that  could
         constitute  grounds for the  termination  of, or the  appointment  of a
         trustee to administer, such Plan.

                  "Eurocurrency  Liabilities"  has the meaning  assigned to that
         term in  Regulation D of the Board of Governors of the Federal  Reserve
         System, as in effect from time to time.
<PAGE>
                                       6


                  "Eurodollar  Lending Office" means, with respect to any Lender
         Party,  the office of such Lender Party  specified  as its  "Eurodollar
         Lending  Office"  opposite  its name on  Schedule  I  hereto  or in the
         Assignment  and  Acceptance  pursuant to which it became a Lender Party
         (or, if no such office is specified,  its Domestic Lending Office),  or
         such other  office of such Lender  Party as such Lender  Party may from
         time to time specify to the Borrower and the Administrative Agent.

                  "Eurodollar  Rate"  means,  for any  Interest  Period for each
         Eurodollar  Rate Advance  comprising  part of the same  Borrowing,  and
         interest rate per annum equal to the "Eurodollar  Rate"  determined (i)
         on the  basis of the rate for  deposits  in U.S.  dollars  for a period
         equal to such  Interest  Period  appearing on Page 3750 of the Telerate
         screen as of 11:00 A.M.,  London time,  two Business  Days prior to the
         beginning of such Interest  Period,  or if such rate does not appear on
         Page 3750 of the Telerate  screen (or otherwise on such  service),  the
         rate per annum (rounded  upward to the nearest 1/16 of 1% per annum) at
         which  deposits  are  offered by  another  publicly  available  service
         displaying eurodollar rates as may be agreed upon by the Administrative
         Agent and the  Borrower  or (ii) in the absence of such  appearance  or
         agreement,  by  reference  to the average of the rate of  interest  per
         annum  (rounded  upward to the nearest whole multiple of 1/16 of 1% per
         annum,  if such  average is not such a multiple)  at which  deposits in
         U.S.  dollars  are  offered  by the  principal  office  of  each of the
         Reference  Banks  in  London,  England,  to prime  banks in the  London
         interbank  market at 11:00 A.M.  (London time) two Business Days before
         the first day of such Interest Period in an amount  substantially equal
         to such Reference  Bank's  Eurodollar  Rate Advance  comprising part of
         such Borrowing and for a period equal to such Interest  Period.  In the
         case of any Eurodollar Rate  determined  pursuant to clause (ii) above,
         the Eurodollar  Rate for any Interest  Period for each  Eurodollar Rate
         Advance  comprising such Revolving Credit Borrowing shall be determined
         by the  Administrative  Agent on the basis of applicable rates received
         by the Administrative  Agent from the Reference Banks two Business Days
         before the first day of such Interest Period, subject,  however, to the
         provisions of Section 2.08.

                  "Eurodollar   Rate  Advance"  means  an  Advance  which  bears
         interest as provided in Section 2.06(a)(ii).

                  "Eurodollar  Rate Reserve  Percentage" of any Lender Party for
         any Interest  Period for any Eurodollar  Rate Advance means the reserve
         percentage  applicable during such Interest Period (or if more than one
         such  percentage  shall be so  applicable,  the daily  average  of such
         percentages  for those days in such  Interest  Period  during which any
         such percentage shall be so applicable) under  regulations  issued from
         time to time by the Board of  Governors of the Federal  Reserve  System
         (or any  successor) for  determining  the maximum  reserve  requirement
         (including,  without limitation,  any emergency,  supplemental or other
         marginal  reserve  requirement)  for such Lender  Party with respect to
         liabilities   or  assets   consisting  of  or  including   Eurocurrency
         Liabilities having a term equal to such Interest Period.
<PAGE>
                                       7


                  "Events of Default" has the meaning specified in Section 6.01.

                  "Existing  Agreement"  means the  Revolving  Credit  Agreement
         dated as of December 14, 1993, as amended by Amendment No. 1 dated June
         7, 1995 among the  Borrower,  the  lenders  party  thereto,  Chase,  as
         administrative  agent,  Citibank,  as documentation agent and Chase and
         Citibank, as co-agents.

                  "Facility"  means the Revolving  Credit Facility or the Letter
         of Credit Facility.

                  "Federal  Funds Rate"  means,  for any period,  a  fluctuating
         interest  rate per annum  equal for each day during  such period to the
         weighted average of the rates on overnight  Federal funds  transactions
         with members of the Federal  Reserve  System  arranged by Federal funds
         brokers,  as published  for such day (or, if such day is not a Business
         Day, for the next preceding  Business Day) by the Federal  Reserve Bank
         of New York,  or, if such rate is not so published for any day which is
         a Business  Day,  the  average of the  quotations  for such day on such
         transactions  received by the  Administrative  Agent from three Federal
         funds brokers of recognized standing selected by it.

                  "First Mortgage Bonds" means those first mortgage bonds issued
         pursuant to the FMB Indenture.

                  "FMB  Indenture"  means the  Indenture of Mortgage and Deed of
         Trust,  dated as of June 1, 1947,  between the Borrower and The Bank of
         New York (formerly  Irving Trust Company),  as trustee  thereunder,  as
         supplemented and amended.

                  "GAAP" has the meaning specified in Section 1.03.

                  "Hazardous  Materials"  means  all  materials  subject  to any
         Environmental Law, including,  without limitation,  materials listed in
         49 C.F.R.  172.101,  materials defined as hazardous pursuant to Section
         101(14) of the Comprehensive  Environmental Response,  Compensation and
         Liability Act of 1980, as amended, flammable,  explosive or radioactive
         materials,  hazardous  or toxic  wastes  or  substances,  petroleum  or
         petroleum distillates, PCB's or asbestos-containing materials.

<PAGE>
                                       8



                  "Indebtedness" means (i) indebtedness for borrowed money, (ii)
         obligations  evidenced  by bonds,  debentures,  notes or other  similar
         instruments,  (iii)  obligations to pay the deferred  purchase price of
         property  or  services  (other  than  trade  payables  incurred  in the
         ordinary course of business),  (iv)  obligations as lessee under leases
         which shall have been or should be, in accordance  with GAAP,  recorded
         as capital  leases,  (v)  obligations,  contingent or otherwise,  under
         acceptance,   letter  of  credit  or  similar   facilities,   (vi)  all
         obligations,  contingent  or otherwise,  under the Material  Leases and
         (vii)  obligations  under direct or indirect  guaranties in respect of,
         and  obligations  (contingent  or  otherwise)  to purchase or otherwise
         acquire,  or otherwise to assure a creditor against loss in respect of,
         indebtedness  or  obligations  of others of the  kinds  referred  to in
         clauses (i) through (vi) above.

                  "Independent  Accountants" means Arthur Andersen & Co., any of
         the  independent  public  accountants  listed on  Schedule  II or other
         independent public accountants of recognized standing acceptable to the
         Majority Lenders.

                  "Insufficiency"  means,  with respect to any Plan, the amount,
         if any,  of its  unfunded  benefit  liabilities,  as defined in Section
         4001(a)(18) of ERISA.

                  "Insured  Series First  Mortgage  Bonds" means First  Mortgage
         Bonds in the aggregate principal amount of $111,000,000  pledged by the
         Borrower  to secure  guarantees  of  $111,000,000  principal  amount of
         pollution  control revenue bonds issued by the City of Farmington,  New
         Mexico,  for the  benefit  of the  Borrower,  which  pollution  control
         revenue bonds are also supported by a municipal  bond insurance  policy
         issued by AMBAC Indemnity Corporation.

                  "Interest  Period" means, for each Advance  comprising part of
         the same Borrowing,  the period commencing on the date of the making of
         such  Advance  pursuant  to  Section  2.02 or the date of the  Rollover
         (whether or not such  Rollover  includes a  Conversion)  of any Advance
         into such Advance  pursuant to Section 2.09, and ending on the last day
         of the period selected by the Borrower pursuant to the provisions below
         and,  thereafter,  each subsequent period commencing on the last day of
         the immediately preceding Interest Period and ending on the last day of
         the period selected by the Borrower  pursuant to the provisions  below.
         The duration of each such Interest  Period shall be 1, 2, 3 or 6 months
         (or,  if  available  to all of the  Lenders,  1 year)  in the case of a
         Eurodollar  Rate  Advance  and up to 90 days in the case of a Base Rate
         Advance,  in each case as the  Borrower  may specify in the  applicable
         Notice  of   Borrowing   or  Notice  of   Rollover   received   by  the
         Administrative  Agent by the time  specified in Section 2.02 or Section
         2.09, as the case may be; provided, however, that:

<PAGE>
                                       9


                            (i) the Borrower may not select any Interest  Period
                  that ends after the Termination Date;

                           (ii) Interest Periods commencing on the same date for
                  Advances comprising part of the same Borrowing shall be of the
                  same duration; and

                           (iii)  whenever the last day of any  Interest  Period
                  would  otherwise occur on a day other than a Business Day, the
                  last day of such Interest Period shall be extended to occur on
                  the next succeeding Business Day, provided, in the case of any
                  Interest  Period for a Eurodollar  Rate Advance,  that if such
                  extension  would cause the last day of such Interest Period to
                  occur in the next following  calendar  month,  the last day of
                  such  Interest  Period  shall  occur  on  the  next  preceding
                  Business Day.

                  "Internal  Revenue  Code" means the  Internal  Revenue Code of
         1986, as amended from time to time, and the regulations promulgated and
         rulings issued thereunder.

                  "Issuing Bank" means Chase, Citibank, Morgan, any other Lender
         Party that has a Letter of Credit  Commitment  set forth  opposite  its
         name on Schedule I hereto,  or any other  Eligible  Assignee to which a
         Letter of Credit Commitment has been assigned pursuant to Section 8.07.

                  "L/C Cash  Collateral  Account"  has the meaning  specified in
         Section 6.02.

                  "L/C Related  Documents" has the meaning  specified in Section
         2.16(e).

                  "Lender Party" means any Lender or any Issuing Bank.

                  "Lenders" means the Banks listed on the signature pages hereof
         and each  Eligible  Assignee  that  shall  become  a  Lender  hereunder
         pursuant to Section 8.07.

                  "Letter  of  Credit"  has the  meaning  specified  in  Section
         2.16(a).

                  "Letter  of  Credit  Advance"  means  an  advance  made by any
         Issuing Bank or any Lender pursuant to Section 2.16(c).

                  "Letter of Credit  Agreement"  has the  meaning  specified  in
         Section 2.16(b)(i).

                  "Letter of Credit  Collateral"  has the meaning  specified  in
         Section 6.02.
<PAGE>
                                       10


                  "Letter  of Credit  Commitment"  means,  with  respect  to any
         Issuing Bank at any time,  the amount set forth  opposite  such Issuing
         Bank's  name on Schedule I hereto  under the caption  "Letter of Credit
         Commitment"  or,  if such  Issuing  Bank has  entered  into one or more
         Assignments  and  Acceptances,  set forth for such  Issuing Bank in the
         Register  maintained by the  Administrative  Agent  pursuant to Section
         8.07(c) as such Issuing Bank's "Letter of Credit  Commitment",  as such
         amount  may be  reduced  at or prior to such time  pursuant  to Section
         2.01.

                  "Letter  of Credit  Facility"  means,  at any time,  an amount
         equal to the lesser of (a) the aggregate  amount of the Issuing  Banks'
         Letter of Credit Commitments and (b) $50,000,000, as such amount may be
         reduced at or prior to such time pursuant to Section 2.04.

                  "Lien"  means any lien,  security  interest or other charge or
         encumbrance of any kind, or any other type of preferential arrangement,
         including, without limitation, the lien or retained security title of a
         conditional vendor and any easement,  right of way or other encumbrance
         on title to real property.

                  "Loan  Documents"  means  this  Agreement,  the Notes and each
         Letter  of  Credit  Agreement,  as each may be  amended,  modified,  or
         otherwise supplemented from time to time.

                  "Majority  Lenders" means at any time, the Lenders (other than
         the Borrower or any Affiliate of the Borrower) holding at least 66 2/3%
         of the sum of (a) the then  aggregate  unpaid  principal  amount of the
         Advances  outstanding at such time, (b) the aggregate  Available Amount
         of all Letters of Credit outstanding at such time and (c) the aggregate
         Unused Revolving Credit Commitments at such time.

                  "Material  Lease"  means  any  lease  to the  Borrower  of its
         leasehold  interests  in (i)  Unit 1 or  Unit  2,  and  related  common
         facilities,  of the Palo Verde Nuclear  Generating  Station or (ii) the
         electric  transmission  line,  and  related  facilities,  known  as the
         Eastern Interconnection  Project,  including,  without limitation,  any
         lease set forth on Schedule 4.01(v) hereto.

                  "Moody's" means Moody's Investors Service, Inc.

                  "Morgan"  has the meaning  specified in the recital of parties
         to this Agreement.

<PAGE>
                                       11



                  "Multiemployer Plan" of any Person means a multiemployer plan,
         as defined in Section  4001(a)(3) of ERISA, to which such Person or any
         of its ERISA  Affiliates  is making or accruing an  obligation  to make
         contributions,  or has within any of the preceding five plan years made
         or accrued an obligation to make contributions.

                  "Multiple Employer Plan" of any Person means a single employer
         plan,  as  defined  in  Section  4001(a)(15)  of  ERISA,  that  (a)  is
         maintained for employees of such Person or any of its ERISA  Affiliates
         and at least one Person other than such Person and its ERISA Affiliates
         or (b) was so maintained  and in respect of which such Person or any of
         its ERISA Affiliates could have liability under Section 4064 or 4069 of
         ERISA in the event such plan has been or were to be terminated.

                  "Net  Worth"  means an  amount  equal to the sum of  preferred
         stockholders' equity and common  stockholders'  equity, as such amounts
         would appear on a balance sheet of the Borrower  prepared in accordance
         with GAAP.

                  "NMSA"  means  the New  Mexico  Statutes  Annotated  1978,  as
         amended or supplemented.

                  "Note" means a promissory note of the Borrower  payable to the
         order of any  Lender,  in  substantially  the form of Exhibit A hereto,
         evidencing  the aggregate  indebtedness  of the Borrower to such Lender
         resulting from the Revolving Credit Advances made by such Lender.

                  "Notice of  Borrowing"  has the meaning  specified  in Section
         2.02(a).

                  "Notice of  Issuance"  has the  meaning  specified  in Section
         2.16(b)(i).

                  "Notice of  Rollover"  has the  meaning  specified  in Section
         2.09(a).

                  "Notice of Termination"  has the meaning  specified in Section
         2.16(a).

                  "Palo  Verde  Leases"  means the "Palo Verde Unit 1" and "Palo
         Verde Unit 2" leases listed in Schedule 4.01(v), "Material Leases".

                  "PBGC" means the Pension Benefit Guaranty Corporation.

                  "Permitted  Liens"  means such of the  following  as to which,
         except as provided below, no enforcement,  collection,  execution, levy
         or  foreclosure  proceeding  shall have been  commenced:  (a) Liens for
         taxes,  assessments  and  governmental  charges or levies to the extent
         payment of such taxes,  assessments,  governmental charges or levies is
         being contested in good faith and by proper proceedings and as to which
         proper reserves are being maintained; (b) Liens imposed by law, such as
         materialmen's,  mechanics',  carriers', workmen's and repairmen's Liens
         and other  similar  Liens  arising in the  ordinary  course of business
         securing  obligations that are not overdue for a period of more than 30
         days;  (c)  pledges or deposits to secure  obligations  under  workers'
         compensation  laws  or  similar  legislation  or to  secure  public  or
         statutory  obligations;   (d)  easements,   rights  of  way  and  other
         encumbrances  on title to real property that do not render title to the
         property encumbered thereby unmarketable or materially adversely affect
         the use of such  property  for its  present  purposes;  and (e) the FMB
         Indenture,  but only to the extent of the Insured Series First Mortgage
         Bonds, and the Apermitted encumbrances under the FMB Indenture..

<PAGE>
                                       12


                  "Person"   means  an  individual,   partnership,   corporation
         (including   a   business   trust),   joint   stock   company,   trust,
         unincorporated  association,  joint  venture  or  other  entity,  or  a
         government or any political subdivision or agency thereof.

                  "Plan"  means a Single  Employer  Plan or a Multiple  Employer
         Plan.

                  "Pro Rata Share" of any amount  means,  with respect to any of
         the Lender  Parties  at any time,  the  product  of (a) a fraction  the
         numerator  of which is the  amount of such  Lender  Party's  Commitment
         under the  applicable  Facility or Facilities  and the  denominator  of
         which is the  aggregate  amount of such  Facility or Facilities at such
         time and (b) such amount.

                  "Prohibited   Transaction"   means  a   transaction   that  is
         prohibited  under Section 4975 of the Internal  Revenue Code or Section
         406 of ERISA and not exempt under Section 4975 of the Internal  Revenue
         Code or Section 408 of ERISA.

                  "PUC" means the New Mexico Public Utility Commission (formerly
         the New Mexico Public Service  Commission) or any successor  regulatory
         body, including the New Mexico Public Regulation Commission.

                  "PUC 2183 Amounts" means those  amounts,  which the Borrower's
         Gas Services division has paid or will pay, but expects to recover from
         its customers,  that are either (1) amounts  referenced in PUC Case No.
         2183 and related to  settlements of gas purchase  contract  disputes or
         (2) amounts  referenced  in PUC Case No. 2183 and PUC Case No. 2320 and
         related to purchased gas costs.

                  "Recordation Fee" has the meaning specified in Section 8.07(a)
         of this Agreement.

<PAGE>
                                       13


                  "Reference Banks" means Chase, Citibank and Morgan.

                  "Revolving Credit Advance" means a revolving credit advance by
         a Lender Party to the Borrower pursuant to Section 2.01(a),  and refers
         to a Base Rate  Advance or a  Eurodollar  Rate  Advance  (each of which
         shall be a "Type" of Advance).

                  "Revolving  Credit  Commitment"  means,  with  respect  to any
         Lender at any time, the amount set forth opposite such Lender's name on
         Schedule I hereto under the caption  "Revolving Credit  Commitment" or,
         if such Lender has entered into one or more Assignment and Acceptances,
         set forth for such  Lender in the  Register  maintained  by the  Paying
         Agent pursuant to Section  8.07(d) as such Lender's  "Revolving  Credit
         Commitment",  as such  amount  may be  reduced at or prior to such time
         pursuant to Section 2.04.

                  "Revolving  Credit Facility" means, at any time, the aggregate
         amount of the Lender's Revolving Credit Commitments at such time.

                  "Roll Over",  "Rollover"  and "Rolled Over" each refers to the
         rollover of Advances  comprising part of the same Borrowing  occurring,
         except  in the  case of Base  Rate  Advances,  on the  last  day of the
         Interest  Period  for such  Advances  (or such  earlier  date as may be
         required  pursuant  to  Section  2.12)  into  another  Interest  Period
         pursuant to Section  2.09,  irrespective  of whether such rollover also
         constitutes  a  Conversion  of  Advances  of one Type into  Advances of
         another  Type;  provided,  however,  that,  as applied to any  Advances
         comprising  part of the same  Borrowing,  such  terms  shall at no time
         refer to any  transaction  that results in an increase in the aggregate
         outstanding amount of such Advances owing to the Lender Parties.

                  "Rollover  Date" has the meaning  specified in Section 2.09 of
         this Agreement.

                  "S&P" means Standard & Poor's Corporation.

                  "Single  Employer Plan" of any Person means a single  employer
         plan,  as  defined  in  Section  4001(a)(15)  of  ERISA,  that  (a)  is
         maintained for employees of such Person or any of its ERISA  Affiliates
         and no Person  other than such Person and its ERISA  Affiliates  or (b)
         was so  maintained  and in respect  of which such  Person or any of its
         ERISA  Affiliates  could have liability  under Section 4069 of ERISA in
         the event such Plan has been or were to be terminated.

                  "Subsidiary" of any Person means any corporation of which more
         than 50% of the issued and  outstanding  capital stock having  ordinary
         voting  power to elect a  majority  of the Board of  Directors  of such
         corporation  (irrespective  of whether at the time capital stock of any
         other class or classes of such  corporation  shall or might have voting
         power upon the occurrence of any  contingency)  is at the time directly
         or indirectly  owned or  controlled by such Person,  by such Person and
         one or  more  of its  other  Subsidiaries  or by one or  more  of  such
         Person's other Subsidiaries.

<PAGE>
                                       14


                  "Substitute  Rating  Agency"  means  a  nationally  recognized
         statistical rating organization  designated by the Administrative Agent
         on any date that either Moody's or S&P shall have ceased to exist or to
         be in the business of rating securities, which applies ratings criteria
         to the Borrower's senior long-term unsecured debt reasonably equivalent
         to those used on the date hereof by  whichever  of Moody's or S&P shall
         have so ceased to exist or rate securities.

                  "Termination Date" means the earlier of March 11, 2003 and the
         date of termination of the whole of the Commitments pursuant to Section
         2.04 or 6.01.

                  "Total  Capitalization"  means the sum of Total  Debt plus Net
         Worth.

                  "Total  Debt" means an amount  equal to (i) the sum of (A) the
         current  portion of long-term  debt,  (B) long-term  debt and (C) notes
         payable,  as such amounts would appear on a balance  sheet  prepared in
         accordance  with GAAP plus (ii) the net  present  value  (using (A) the
         discount  rate (1) set forth in Schedule  4.01(x),  so long as Schedule
         4.01(x)  specifies  the  same  relevant  discount  rate  as is  used in
         calculating  such net present value  provided to Moody's and S&P or (2)
         the discount rate used in  calculating  such net present value provided
         to Moody's  and S&P or (B) any such other rate as shall be  proposed by
         the Borrower  (and agreed upon by the Majority  Lenders) of all amounts
         payable under the Material Leases.

                  "Unused  Revolving Credit  Commitment"  means, with respect to
         any Lender at any time, (a) such Lender's  Revolving Credit  Commitment
         at such time minus (b) the sum of (i) the aggregate principal amount of
         all  Revolving  Credit  Advances and Letter of Credit  Advances made by
         such Lender, in each case in its capacity as a Lender,  and outstanding
         at such  time,  and  (ii)  such  Lender's  Pro  Rata  Share  of (A) the
         aggregate Available Amount of all Letters of Credit outstanding at such
         time and (B) to the  extent  not  included  in  clause  (b)(i)  of this
         definition,  the  aggregate  principal  amount of all  Letter of Credit
         Advances  made by the Issuing  Banks  pursuant  to Section  2.16(c) and
         outstanding at such time.

                  "Welfare  Plan"  means a welfare  plan,  as defined in Section
         3(1) of ERISA.

                  "Withdrawal  Liability" has the meaning specified in Part I of
         Subtitle E of Part IV of ERISA.

<PAGE>
                                       15


                  SECTION 1.02.  Computation of Time Periods.  In this Agreement
in the computation of periods of time from a specified date to a later specified
date,  the word "from" means "from and including" and the words "to" and "until"
each means "to but excluding".

                  SECTION  1.03.  Accounting  Terms.  All  accounting  terms not
specifically  defined  herein shall be construed in  accordance  with  generally
accepted accounting  principles consistent with those applied in the preparation
of the annual financial statements referred to in Section 4.01(f) ("GAAP").


                                   ARTICLE II

                        AMOUNTS AND TERMS OF THE ADVANCES


                  SECTION  2.01.  The  Revolving  Credit  Advances.  Each Lender
severally  agrees,  on the terms and conditions  hereinafter  set forth, to make
Revolving  Credit Advances to the Borrower from time to time on any Business Day
during the period from the date hereof until the  Termination  Date in an amount
for each such  Revolving  Credit  Advance  not to exceed  such  Lender's  Unused
Revolving  Credit  Commitment  at such time.  Each  Borrowing  shall  consist of
Revolving  Credit  Advances of the same Type made on the same day by the Lenders
ratably according to their respective  Revolving Credit Commitments and shall be
in an aggregate amount (or an integral multiple of $1,000,000 in excess thereof)
of not less than (a) $5,000,000,  if such Borrowing  consists of Eurodollar Rate
Advances,  or (b) $3,000,000,  if such Borrowing consists of Base Rate Advances.
Within the limits of each Lender's Revolving Credit Commitment, the Borrower may
borrow, prepay pursuant to Section 2.10 and reborrow under this Section 2.01.

                  SECTION 2.02.  Making the Revolving Credit Advances.  (a) Each
Borrowing shall be made on notice,  given by the Borrower to the  Administrative
Agent not later  than,  in the case of a  proposed  Borrowing  to consist of (i)
Eurodollar Rate Advances,  12:00 noon (New York City time) on the third Business
Day prior to such proposed  Borrowing,  and (ii) Base Rate Advances,  11:00 A.M.
(New York City time) on the date of such proposed Borrowing.  The Administrative
Agent shall give prompt notice  thereof to each Lender by  telecopier,  telex or
cable.  Each such notice of a Borrowing  (a "Notice of  Borrowing")  shall be by
telecopier, telex or cable, confirmed immediately by a signed original delivered
by regular mail,  overnight  courier or messenger,  in substantially the form of
Exhibit  B  hereto,  specifying  therein  (i)  the  requested  (A)  date of such
Borrowing,  (B) Type of Revolving Credit Advances comprising such Borrowing, (C)
aggregate  amount of such  Borrowing,  and (D) initial  Interest Period for each
such Revolving Credit Advance and (ii) whether the requested  Borrowing is being
made together with a requested Rollover of Revolving Credit Advances pursuant to

<PAGE>
                                       16


Section 2.09 to occur simultaneously on the date of the requested Borrowing.  If
such  Notice of  Borrowing  includes a request  for a  simultaneous  Rollover of
Revolving Credit Advances pursuant to Section 2.09, (i) such Notice of Borrowing
shall  include the  information  required  for a Notice of Rollover  pursuant to
Section 2.09 and shall  otherwise  comply with the  requirements of such Section
2.09 and (ii) the  amount of the  proposed  Borrowing  shall in no event be less
than an  amount  equal to the  difference,  if any,  between  the  amount of the
Revolving  Credit  Advances  to be  Rolled  Over  on the  date  of the  proposed
Borrowing and the amount of such Revolving  Credit Advances  following  Rollover
thereof.  Each Lender shall,  before 12:00 noon (New York City time) on the date
of a Borrowing consisting of Eurodollar Rate Advances,  or before 2:00 P.M. (New
York City time) on the date of a  Borrowing  consisting  of Base Rate  Advances,
make  available  for  the  account  of  its  Applicable  Lending  Office  to the
Administrative  Agent at its address  referred to in Section  8.02,  in same day
funds, such Lender's ratable portion of such Borrowing. After the Administrative
Agent's receipt of funds and upon  fulfillment of the applicable  conditions set
forth in Article III, the Administrative  Agent will make funds available to the
Borrower at the account  specified by the Borrower in the  applicable  Notice of
Borrowing;  provided, however, that if a Borrowing is made simultaneously with a
Rollover  of  Revolving   Credit   Advances   pursuant  to  Section  2.09,   the
Administrative  Agent shall first apply such funds to any prepayment required on
such date by Section 2.10(b)(ii).

                  (b) Each Notice of Borrowing  shall be irrevocable and binding
on the  Borrower.  In the case of any  Borrowing  which  the  related  Notice of
Borrowing specifies is to be comprised of Eurodollar Rate Advances, the Borrower
shall indemnify each Lender against any loss,  cost or expense  incurred by such
Lender as a result of any failure to fulfill on or before the date  specified in
such Notice of Borrowing for such Borrowing the applicable  conditions set forth
in Article III,  including,  without  limitation,  any loss  (including  loss of
anticipated  profits),  cost or expense incurred by reason of the liquidation or
reemployment  of  deposits  or other  funds  acquired by such Lender to fund the
Advance to be made by such Lender as part of such  Borrowing  when such Advance,
as a result of such failure, is not made on such date.

                  (c) Unless the Administrative Agent shall have received notice
from a Lender  that such Lender will not make  available  to the  Administrative
Agent such Lender's ratable portion of a Borrowing,  if such Borrowing  consists
of (i) Base Rate Advances,  before 2:00 P.M. (New York City time) on the date of
such  Borrowing  or (ii)  Eurodollar  Rate  Advances,  prior to the date of such
Borrowing,  the  Administrative  Agent may assume that such Lender has made such
portion available to the  Administrative  Agent on the date of such Borrowing in
accordance with subsection (a) of this Section 2.02 and the Administrative Agent
may, in reliance upon such  assumption,  make  available to the Borrower on such
date a  corresponding  amount.  If and to the extent that such Lender  shall not

<PAGE>
                                       17


have so made such ratable portion  available to the  Administrative  Agent, such
Lender and the Borrower  severally  agree to repay to the  Administrative  Agent
forthwith on demand such  corresponding  amount together with interest  thereon,
for each day from the date such amount is made  available to the Borrower  until
the date such amount is repaid to the  Administrative  Agent, at (i) in the case
of the Borrower, the interest rate applicable at the time to Advances comprising
such  Borrowing and (ii) in the case of such Lender,  the Federal Funds Rate. If
such Lender shall repay to the Administrative  Agent such corresponding  amount,
such amount so repaid shall  constitute  such  Lender's  Advance as part of such
Borrowing for purposes of this Agreement.

                  (d) The  failure of any Lender to make the  Advance to be made
by it as part of any  Borrowing  shall  not  relieve  any  other  Lender  of its
obligation, if any, hereunder to make its Advance on the date of such Borrowing,
but no Lender shall be  responsible  for the failure of any other Lender to make
the Advance to be made by such other Lender on the date of any Borrowing.

                  SECTION 2.03. Fees. (a) Commitment Fee. The Borrower agrees to
pay to the Administrative  Agent for the account of each Lender a commitment fee
on the average daily unused portion of such Lender's Revolving Credit Commitment
from the Effective Date until the Termination Date, payable quarterly in arrears
on the last day of each March,  June,  September and December during the term of
such Lender's Revolving Credit Commitment,  commencing on the first such date to
occur after the Effective Date, and on the Termination  Date, at the rate of (i)
0.1500%  during such times as the Bond Rating by Moody's or S&P is at least Baa2
or BBB,  respectively,  (ii) 0.1875%  during such times as clause (a)(i) of this
Section 2.03 is not applicable and the Bond Rating by Moody's or S&P is at least
Baa3 or BBB-, respectively,  (iii) 0.2000% during such times as clause (a)(i) or
(a)(ii) of this Section 2.03 are not  applicable  and the Bond Rating by Moody's
or S&P is at least Ba1 or BB+,  respectively,  (iv) 0.2500% during such times as
clause  (a)(i),  (a)(ii) or (a)(iii) of this Section 2.03 are not applicable and
the Bond Rating by Moody's or S&P is at least Ba2 or BB,  respectively,  and (v)
0.3750% at all other times.

                  (b) Administrative Agent's Fees. The Borrower agrees to pay to
the  Administrative  Agent for its own account the fees (i) set forth in the Fee
Letter, dated December 15, 1997, among the Administrative Agent and the Borrower
at the times  specified  therein for  payment of such fees,  and (ii) such other
fees  as  may  from  time  to  time  be  agreed   among  the  Borrower  and  the
Administrative Agent.

                  (c) Letter of Credit Fees.  (i) The Borrower  shall pay to the
Administrative  Agent for the account of each Lender a commission on such Lender
Party's Pro Rata Share of the average daily  aggregate  Available  Amount of all
Letters of Credit outstanding from time to time at a rate per annum equal to the
Applicable  Margin in effect  from time to time for  Eurodollar  Rate  Advances,
payable in arrears quarterly on the last day of each March, June,  September and
December  commencing on the first such date to occur after the  Effective  Date,
and on the earliest to occur of the full  drawing,  expiration,  termination  or
cancellation of any such Letter of Credit and on the Termination Date.

<PAGE>
                                       18


                  (ii) The Borrower  shall pay to each Issuing Bank, for its own
account a fronting  fee based on the amount of each  Letter of Credit  issued by
such  Issuing  Bank  at a rate  equal  to  0.125%  per  annum,  and  such  other
commissions,  issuance  fees,  transfer  fees  and  other  fees and  charges  in
connection with the issuance or  administration  of each Letter of Credit as the
Borrower and such Issuing Bank shall agree.

                  SECTION 2.04. Reduction of the Commitments.  (a) Optional. The
Borrower shall have the right,  upon at least three Business Days' notice to the
Administrative  Agent,  to terminate  in whole or reduce  ratably in part unused
portion  of the  Letter of  Credit  Facility  and the  Unused  Revolving  Credit
Commitments,  provided that each partial reduction of a Facility shall be in the
aggregate amount of $5,000,000 or an integral multiple thereof.

                  (b)  Mandatory.   The  Letter  of  Credit  Facility  shall  be
permanently  reduced  from  time to time on the  date of each  reduction  in the
Revolving  Credit Facility by the amount,  if any, by which the Letter of Credit
Facility  exceeds the  Revolving  Credit  Facility  after giving  effect to such
reduction of the Revolving Credit Facility.

                  SECTION 2.05.  Repayment.  The Borrower shall repay the unpaid
principal  amount of each Advance owing to each Lender Party on the  Termination
Date. In addition,  the Borrower shall repay the unpaid principal amount of each
Advance  owed to each  Lender  Party on the last day of each  relevant  Interest
Period, which repayment may be through the rollover provisions hereof.

                  SECTION 2.06. Interest. (a) The Borrower shall pay interest on
the unpaid  principal  amount of each  Revolving  Credit  Advance  owing to each
Lender Party from the date of such Revolving Credit Advance until such principal
amount shall be paid in full, at the following rates per annum:

                  (i) Base Rate Advances. During such periods as such Advance is
         a Base Rate  Advance,  a rate per annum equal at all times  during each
         Interest  Period  for such  Advance  to the sum of (A) the Base Rate in
         effect from time to time plus (B) the Applicable  Margin in effect from
         time to time,  payable  in  arrears  on the  last day of such  Interest
         Period and on the date such Advance shall be Converted or paid in full.

<PAGE>
                                       19



                  (ii)  Eurodollar  Rate  Advances.  During such periods as such
         Advance is a  Eurodollar  Rate  Advance,  a rate per annum equal at all
         times  during each  Interest  Period for such Advance to the sum of (A)
         the Eurodollar  Rate for such Interest Period for such Advance plus (B)
         the Applicable  Margin in effect from time to time,  payable in arrears
         on the last day of such  Interest  Period and on the date such  Advance
         shall be Converted or paid in full.

                  (b) Upon the  occurrence  and  during the  continuance  of any
Event of Default, the Borrower shall pay interest on the unpaid principal amount
of each  Revolving  Credit  Advance owing to each Lender Party and on the unpaid
amount of all interest,  fees and other amounts  payable  hereunder  that is not
paid when due, payable in arrears on the dates referred to in clauses (a)(i) and
(a)(ii) above and on demand,  at a rate per annum equal at all times to 1% above
the rate per annum  otherwise  required to be paid on such Advances  pursuant to
clauses (a)(i) and (a)(ii) above or in the case of such other amounts,  1% above
the rate per annum required to be paid on Base Rate Advances  pursuant to clause
(a)(i) above.

                  SECTION 2.07. Additional Interest on Eurodollar Rate Advances.
The  Borrower  shall pay to the  Administrative  Agent for the  account  of each
Lender  Party  additional  interest  on the  unpaid  principal  amount  of  each
Revolving  Credit  Advance of such  Lender  Party  during  such  periods as such
Advance is a Eurodollar  Rate Advance,  from the date of such Advance until such
principal  amount is paid in full,  at an  interest  rate per annum equal at all
times to the remainder  obtained by subtracting (i) the Eurodollar Rate for such
Interest  Period for such Eurodollar Rate Advance from (ii) the rate obtained by
dividing such Eurodollar Rate by a percentage equal to 100% minus the Eurodollar
Rate Reserve  Percentage of such Lender Party for such Interest Period,  payable
on each date on which interest is payable on such Eurodollar Rate Advance.  Such
additional interest shall be determined by such Lender Party and notified to the
Borrower through the Administrative Agent.

                  SECTION 2.08. Interest Rate Determination and Protection.  (a)
In the event the  Eurodollar  Rate is  determined by reference to clause (ii) of
the  definition   thereof,   each  Reference  Bank  agrees  to  furnish  to  the
Administrative  Agent timely  information  for the purpose of  determining  such
Eurodollar  Rate. If in such event,  any  Reference  Bank shall not furnish such
timely  information to the  Administrative  Agent for the purpose of determining
any such interest rate, the  Administrative  Agent shall determine such interest
rate on the basis of timely information furnished by any other Reference Banks.

                  (b) The  Administrative  Agent shall give prompt notice to the
Borrower and the Lender  Parties of the applicable  interest rate  determined by
the Administrative Agent for purposes of Section 2.06(a) and (b).

<PAGE>
                                       20



                  (c) If the  Eurodollar  Rate is  determined  by  reference  to
clause (ii) of the definition  thereof and no Reference  Bank  furnishes  timely
information to the Administrative  Agent for determining the Eurodollar Rate for
any Eurodollar Rate Advances,

                  (i)  the  Administrative  Agent  shall  forthwith  notify  the
         Borrower  and the  Lender  Parties  that the  interest  rate  cannot be
         determined for such Eurodollar Rate Advances,

                  (ii) the  obligation of the Lender Parties to make, or to Roll
         Over Advances into  Eurodollar  Rate Advances shall be suspended  until
         the  Administrative  Agent  shall  notify the  Borrower  and the Lender
         Parties that the circumstances causing such suspension no longer exist,
         and

                  (iii) any  request  for a  Borrowing  consisting  of, or for a
         Rollover of Advances into  Eurodollar  Rate Advances  shall be deemed a
         request for a Borrowing  consisting of, or a Rollover of Advances into,
         Base Rate Advances  having the same Interest  Period as such  requested
         Borrowing or Rollover.

                  (d) If, with  respect to any  Eurodollar  Rate  Advances,  the
Majority  Lenders notify the  Administrative  Agent that the Eurodollar Rate for
any Interest  Period for such Advances will not  adequately  reflect the cost to
such  Majority  Lenders  of  making,  funding or  maintaining  their  respective
Eurodollar Rate Advances for such Interest Period,

                  (i) the  Administrative  Agent shall  forthwith  so notify the
         Borrower and the Lender Parties,

                  (ii) the  obligation of the Lender Parties to make, or to Roll
         Over Advances into,  Eurodollar  Rate Advances shall be suspended until
         the  Administrative  Agent  shall  notify the  Borrower  and the Lender
         Parties that the circumstances causing such suspension no longer exist,
         and

                  (iii) any request for a Borrowing consisting of, or a Rollover
         of Advances  into,  Eurodollar  Rate Advances shall be deemed a request
         for a Borrowing  consisting  of, or a Rollover of Advances  into,  Base
         Rate  Advances  having  the  same  Interest  Period  as such  requested
         Borrowing or Rollover.

                  SECTION  2.09.  Rollover and  Conversion  of Revolving  Credit
Advances.  (a) Each  Rollover may be made on notice given by the Borrower to the
Administrative  Agent not later than,  if such  Rollover is into (i)  Eurodollar
Rate  Advances,  12:00 noon (New York City time) on the third Business Day prior
to and (ii) Base Rate Advances,  11:00 A.M. (New York City time) on the date of,
the proposed  Rollover (the "Rollover  Date"),  which Rollover Date shall be the
last day of the Interest  Period of the Revolving  Credit  Advances to be Rolled


<PAGE>
                                       21


Over or such earlier date as shall be required  pursuant to Section 2.12, unless
the Revolving  Credit Advances to be so Rolled Over are Base Rate Advances.  The
Administrative  Agent shall give to each Lender Party prompt  notice  thereof by
telecopier,  telex or  cable.  Each such  notice of a  Rollover  (a  "Notice  of
Rollover") shall be by telecopier,  telex or cable,  confirmed  immediately by a
signed original  delivered by regular mail,  overnight courier or messenger,  in
substantially  the form of  Exhibit C hereto,  (i)  specifying  therein  (A) the
Revolving  Credit  Advances to be Rolled Over,  (B) the Rollover  Date,  (C) the
Interest  Period for such Revolving  Credit Advances upon being Rolled Over, (D)
the Type for such Revolving  Credit  Advances upon being Rolled Over and (E) the
amount of such  Revolving  Credit  Advances upon being Rolled Over (which amount
shall equal, if such Revolving Credit Advances are to be (x) Base Rate Advances,
$3,000,000  or an  integral  multiple  of  $1,000,000  in excess  thereof or (y)
Eurodollar  Rate Advances,  $5,000,000 or an integral  multiple of $1,000,000 in
excess  thereof),  and (ii) specifying  whether the requested  Rollover is being
made  together  with a  requested  Borrowing  to occur  simultaneously  with the
requested Rollover on the applicable  Rollover Date pursuant to Section 2.02. If
such Notice of Rollover includes a request for a simultaneous Borrowing pursuant
to Section  2.02,  (i) such Notice of  Rollover  shall  include the  information
required for a Notice of Borrowing  pursuant to Section 2.02 and (ii) the amount
of the proposed Borrowing to occur simultaneously with such Rollover shall in no
event be less than an amount equal to the difference, if any, between the amount
of the  Revolving  Credit  Advances  to be  Rolled  Over and the  amount of such
Revolving Credit Advances following Rollover thereof.  Upon fulfillment,  on the
Rollover  Date, of the  applicable  conditions  set forth in Article III of this
Agreement (which conditions shall be deemed fulfilled unless the  Administrative
Agent  shall have  received  written  notice from any Lender  Party  pursuant to
Section 3.04 or from the Borrower,  if such Rollover is into (i) Eurodollar Rate
Advances,  by 12:00 noon (New York City time) on the Rollover  Date,  or (ii) if
such Rollover is into Base Rate  Advances,  by 2:00 P.M. (New York City time) on
the Rollover Date), a Rollover of such Revolving  Credit Advances shall occur as
set forth in the Notice of Rollover  for such  Revolving  Credit  Advances.  The
Administrative  Agent shall forthwith notify the Borrower and the Lender Parties
if such  applicable  conditions  have not been  fulfilled and the Rollover shall
therefore not occur.

                  (b) Each Notice of Rollover shall be  irrevocable  and binding
on the  Borrower.  In the case of any proposed  Rollover  into  Eurodollar  Rate
Advances,  the Borrower shall indemnify each Lender Party against any loss, cost
or expense  incurred by such Lender Party as a result of any failure to fulfill,
on or before the Rollover Date for such Rollover,  the applicable conditions set
forth in Article III, including, without limitation, any loss (including loss of
anticipated  profits),  cost or expense incurred by reason of the liquidation of
or  reemployment  of deposits or other  funds  acquired by such Lender  Party in
connection with the Rollover of the Revolving Credit Advance made by such Lender
Party when such Revolving  Credit Advance,  as a result of such failure,  is not
Rolled Over on the Rollover Date.

<PAGE>
                                       22


                  SECTION 2.10.  Prepayments of Revolving Credit  Advances.  (a)
Optional. The Borrower may, (i) in the case of Eurodollar Rate Advances, upon at
least three  Business Days' notice to the  Administrative  Agent and (ii) in the
case of Base Rate  Advances,  upon notice given to the  Administrative  Agent no
later than 11:30 A.M. (New York City time) on the proposed  date, in either case
stating the proposed date and aggregate principal amount of the prepayment,  and
if such notice is given the Borrower  shall,  prepay the  outstanding  principal
amounts of the Revolving  Credit Advances  comprising part of the same Borrowing
in whole or ratably in part,  together with accrued interest to the date of such
prepayment on the principal  amount prepaid;  provided,  however,  that (x) each
partial prepayment shall be in an aggregate principal amount of $5,000,000 or an
integral  multiple  thereof  and  (y) in  the  event  of  such  prepayment  of a
Eurodollar Rate Advance, the Borrower shall be obligated to reimburse the Lender
Parties in respect thereof pursuant to Section 8.04(b).

                  (b)  Mandatory.  (i) If, after giving effect to a reduction of
Commitments pursuant to Section 2.04 of this Agreement,  the aggregate principal
amount of the sum of the  aggregate  principal  amount of the  Revolving  Credit
Advances and Letter of Credit Advances  outstanding plus the aggregate Available
Amount of all  Letters of Credit then  outstanding  shall  exceed the  aggregate
amount of the Revolving Credit Facility,  the Borrower shall immediately  prepay
the  outstanding  principal  amount of the  Advances  in an amount  equal to the
amount of such excess.

                  (ii)  If,  on the  last  day of the  Interest  Period  for any
Revolving Credit Advance, any portion of such Revolving Credit Advance shall not
be Rolled Over pursuant to Section 2.09 of this  Agreement,  the Borrower  shall
immediately  prepay the portion of such  Revolving  Credit Advance not so Rolled
Over.

                  (iii)  The  Borrower  shall  prepay  Advances  to  the  extent
required by Section 2.12 of this Agreement.

                  (iv) All  prepayments  under this subsection (b) shall be made
together with accrued  interest to the date of such  prepayment on the principal
amount  prepaid  and all  amounts  then  owing  under  Section  8.04(b)  of this
Agreement in respect of such prepayment.

                  SECTION 2.11.  Increased  Costs. (a) If, due to either (i) the
introduction  of or any change  (other than any change by way of  imposition  or
increase  of reserve  requirements,  in the case of  Eurodollar  Rate  Advances,
included in the Eurodollar Rate Reserve  Percentage) in or in the interpretation
of any law or  regulation or (ii) the  compliance  with any guideline or request
from any central bank or other governmental authority (whether or not having the
force of law),  there shall be any  increase in the cost to any Lender  Party of
agreeing to make or making,  funding or  maintaining  Eurodollar  Rate Advances,

<PAGE>
                                       23


then the  Borrower  shall from time to time,  upon demand by such  Lender  Party
(with  a  copy  of  such  demand  to  the  Administrative  Agent),  pay  to  the
Administrative  Agent for the account of such Lender  Party  additional  amounts
sufficient to compensate  such Lender Party for such increased cost. Each Lender
Party agrees to use its best efforts to furnish notice to the Borrower  promptly
upon its becoming aware of and determining such increased cost. A certificate as
to the  amount  of  such  increased  cost,  submitted  to the  Borrower  and the
Administrative  Agent by such Lender Party,  shall be conclusive and binding for
all purposes, absent manifest error.

                  (b) If any Lender Party  determines  that  compliance with any
law or  regulation  or any  guideline  or request from any central bank or other
governmental authority (whether or not having the force of law) affects or would
affect the amount of capital  required  or  expected  to be  maintained  by such
Lender  Party or any  corporation  controlling  such  Lender  Party and that the
amount of such  capital  is  increased  by or based upon the  existence  of such
Lender  Party's  commitment to lend or to issue Letters of Credit  hereunder and
other  commitments of this type or the issuance or maintenance of the Letters of
Credit (or similar  contingent  obligations),  then,  upon demand by such Lender
Party (with a copy of such demand to the  Administrative  Agent),  the  Borrower
shall immediately pay to the Administrative Agent for the account of such Lender
Party, from time to time as specified by such Lender Party,  additional  amounts
sufficient to compensate  such Lender Party or such  corporation in the light of
such circumstances,  to the extent that such Lender Party reasonably  determines
such increase in capital to be allocable to the existence of such Lender Party's
commitment  to lend or to issue  Letters of Credit  hereunder or the issuance or
maintenance  of  Letters  of  Credit  (or  similar  contingent  obligations).  A
certificate as to such amounts submitted to the Borrower and the  Administrative
Agent by such Lender  Party shall be  conclusive  and binding for all  purposes,
absent manifest error.

                  (c) If,  with  respect to any  Eurodollar  Rate  Advances  the
Majority  Lenders notify the  Administrative  Agent that the Eurodollar Rate for
any Interest  Period for such Advances will not  adequately  reflect the cost to
such Lenders of making,  funding or maintaining  their  Eurodollar Rate Advances
for such Interest Period, the Administrative Agent shall forthwith so notify the
Borrower and the Lenders,  whereupon (i) each such  Eurodollar Rate Advance will
automatically,  on the last day of the then existing  Interest Period  therefor,
Convert into a Base Rate Advance and (ii) the obligation of the Lenders to make,
or to Convert  Advances into,  Eurodollar Rate Advances shall be suspended until
the  Administrative  Agent shall  notify the  Borrower  that such  Lenders  have
determined that the circumstances causing such suspension no longer exist.

                  (d) Notwithstanding any other provision of this Agreement,  if
the  introduction  of or any  change in or in the  interpretation  of any law or
regulation  shall make it unlawful,  or any central  bank or other  governmental
authority  shall  assert that it is unlawful,  for any Lender or its  Eurodollar
Lending  Office to perform its  obligations  hereunder to make  Eurodollar  Rate
Advances or to continue to fund or maintain  Eurodollar Rate Advances hereunder,
then,  on notice  thereof and demand  therefor  by such  Lender to the  Borrower
through  the  Administrative  Agent,  (i)  each  Eurodollar  Rate  Advance  will
automatically,  upon such demand,  Convert into a Base Rate Advance and (ii) the


<PAGE>
                                       24


obligation of the Lenders to make, or to Convert Advances into,  Eurodollar Rate
Advances  shall be  suspended  until the  Administrative  Agent shall notify the
Borrower that such Lender has  determined  that the  circumstances  causing such
suspension  no longer exist;  provided,  however,  that,  before making any such
demand,  such  Lender  agrees to use  reasonable  efforts  (consistent  with its
internal policy and legal and regulatory  restrictions) to designate a different
Eurodollar  Lending Office if the making of such a designation  would allow such
Lender or its Eurodollar  Lending Office to continue to perform its  obligations
to make Eurodollar  Rate Advances or to continue to fund or maintain  Eurodollar
Rate  Advances  and would not, in the  judgment  of such  Lender,  be  otherwise
disadvantageous to such Lender.

                  SECTION 2.12. Illegality.  Notwithstanding any other provision
of this  Agreement,  if any Lender Party shall notify the  Administrative  Agent
that the introduction of or any change in or in the interpretation of any law or
regulation  makes  it  unlawful,  or any  central  bank  or  other  governmental
authority  asserts that it is unlawful,  for any Lender Party or its  Eurodollar
Lending  Office to perform its  obligations  hereunder to make  Eurodollar  Rate
Advances or to fund or maintain  Eurodollar  Rate  Advances  hereunder,  (i) the
obligation  of the  Lender  Parties  to make,  or to Roll  Over  Advances  into,
Eurodollar Rate Advances shall be suspended until the Administrative Agent shall
notify the Borrower and the Lender Parties that the  circumstances  causing such
suspension no longer exist,  (ii) the Borrower shall,  within five Business Days
of notice from the  Administrative  Agent,  either prepay in full all Eurodollar
Rate  Advances of all Lender  Parties then  outstanding,  together with interest
accrued  thereon and amounts then owing under Section  8.04(b) of this Agreement
in respect of such  prepayment  or Convert all  Eurodollar  Rate Advances of all
Lender Parties then outstanding into Advances of another Type in accordance with
Section 2.09 and (iii) any request for a Borrowing  consisting of, or a Rollover
of  Advances  into,  Eurodollar  Rate  Advances  shall be deemed a request for a
Borrowing  consisting  of, or a Rollover of Advances  into,  Base Rate  Advances
having the same Interest Period as such requested Borrowing or Rollover.

                  SECTION  2.13.  Payments  and  Computations.  (a) The Borrower
shall make each payment  hereunder  and under the Notes not later than 2:00 P.M.
(New York City time) on the day when due in U.S.  dollars to the  Administrative
Agent  at its  address  referred  to in  Section  8.02 in same  day  funds.  The
Administrative Agent will promptly thereafter cause to be distributed like funds
relating to the payment of  principal  or interest or  commitment  fees  ratably
(other than amounts payable  pursuant to Section  2.02(b),  2.07,  2.11, 2.14 or
8.04(b)) to the Lender  Parties for the account of their  respective  Applicable
Lending  Offices,  and like funds  relating to the  payment of any other  amount
payable  to any  Lender  Party  to such  Lender  Party  for the  account  of its
Applicable  Lending  Office,  in each case to be applied in accordance  with the
terms of this Agreement. Upon its acceptance of an Assignment and Acceptance and
recording  of the  information  contained  therein in the  Register  pursuant to
Section 8.07(d),  from and after the effective date specified in such Assignment
and Acceptance,  the Administrative  Agent shall make all payments hereunder and
under the Notes in respect of the interest  assigned thereby to the Lender Party
assignee  thereunder,  and the parties to such  Assignment and Acceptance  shall
make all  appropriate  adjustments  in such  payments for periods  prior to such
effective date directly between themselves.

<PAGE>
                                       25


                  (b) All  computations of interest based on the Base Rate shall
be made by the  Administrative  Agent on the basis of a year of 365 or 366 days,
as the case may be, and all  computations  of interest  based on the  Eurodollar
Rate or the  Federal  Funds  Rate and of  commitment  fees  shall be made by the
Administrative  Agent, and all computations of interest pursuant to Section 2.07
shall be made by a Lender  Party,  on the basis of a year of 360  days,  in each
case for the actual  number of days  (including  the first day but excluding the
last day) occurring in the period for which such interest or commitment fees are
payable.  Each  determination  by the  Administrative  Agent (or, in the case of
Section  2.07,  by a  Lender  Party)  of an  interest  rate  hereunder  shall be
conclusive and binding for all purposes, absent manifest error.

                  (c) Whenever any payment hereunder or under the Notes shall be
stated to be due on a day other than a Business  Day, such payment shall be made
on the next  succeeding  Business Day, and such  extension of time shall in such
case be included in the computation of payment of interest or commitment fee, as
the case may be;  provided,  however,  if such extension  would cause payment of
interest on or  principal  of  Eurodollar  Rate  Advances to be made in the next
following  calendar  month,  such  payment  shall be made on the next  preceding
Business Day.

                  (d) Unless the Administrative Agent shall have received notice
from the Borrower  prior to 11:00 A.M. (New York City time) on the date on which
any payment is due to the Lender  Parties  hereunder  that the Borrower will not
make such payment in full, the Administrative Agent may assume that the Borrower
has made such payment in full to the  Administrative  Agent on such date and the
Administrative  Agent  may,  in  reliance  upon  such  assumption,  cause  to be
distributed  to each Lender Party on such due date an amount equal to the amount
then due such Lender Party.  If and to the extent the Borrower shall not have so
made such payment in full to the  Administrative  Agent, each Lender Party shall
repay to the Administrative Agent forthwith on demand such amount distributed to
such Lender Party  together  with interest  thereon,  for each day from the date
such amount is distributed to such Lender Party until the date such Lender Party
repays such amount to the Administrative Agent, at the Federal Funds Rate.


<PAGE>
                                       26


                  SECTION 2.14.  Taxes. (a) Any and all payments by the Borrower
hereunder or under the Notes shall be made,  in  accordance  with Section  2.13,
free and clear of and without deduction for any and all present or future taxes,
levies, imposts, deductions,  charges or withholdings,  and all liabilities with
respect  thereto,   excluding,  in  the  case  of  each  Lender  Party  and  the
Administrative  Agent,  taxes imposed on its income, and franchise taxes imposed
on it, by the  jurisdiction  under the laws of which  such  Lender  Party or the
Administrative  Agent  (as  the  case  may  be) is  organized  or any  political
subdivision  thereof and, in the case of each Lender Party, taxes imposed on its
income,  and franchise  taxes imposed on it, by the  jurisdiction of such Lender
Party's Applicable Lending Office or any political subdivision thereof (all such
non-excluded  taxes,  levies,  imposts,  deductions,  charges,  withholdings and
liabilities being hereinafter referred to as "Taxes").  If the Borrower shall be
required  by law to  deduct  any Taxes  from or in  respect  of any sum  payable
hereunder or under any Note to any Lender Party or the Administrative Agent, (i)
the sum payable  shall be increased as may be necessary so that after making all
required deductions  (including deductions applicable to additional sums payable
under this Section 2.14) such Lender Party or the  Administrative  Agent (as the
case may be) receives an amount  equal to the sum it would have  received had no
such  deductions  been made,  (ii) the Borrower  shall make such  deductions and
(iii) the Borrower shall pay the full amount  deducted to the relevant  taxation
authority or other authority in accordance with applicable law.

                  (b) In  addition,  the  Borrower  agrees to pay any present or
future stamp or documentary taxes or any other excise or property taxes, charges
or similar levies which arise from any payment made hereunder or under the Notes
or from the execution,  delivery,  filing,  recording,  or  registration  of, or
otherwise  with  respect to, the Loan  Documents  and the other  documents to be
delivered under the Loan Documents (hereinafter referred to as "Other Taxes").

                  (c) The  Borrower  will  indemnify  each Lender  Party and the
Administrative  Agent for the full  amount of Taxes or Other  Taxes  (including,
without  limitation,  any Taxes or Other Taxes  imposed by any  jurisdiction  on
amounts  payable  under  this  Section  2.14) paid by such  Lender  Party or the
Administrative  Agent  (as  the  case  may  be)  and  any  liability  (including
penalties,  interest and expenses)  arising  therefrom or with respect  thereto,
whether or not such Taxes or Other  Taxes were  correctly  or legally  asserted.
This  indemnification  shall be made  within 30 days  from the date such  Lender
Party or the  Administrative  Agent  (as the case may be) makes  written  demand
therefor.  The Administrative  Agent and the Lender Parties each agree to pay to
the Borrower  promptly upon receipt thereof an amount equal to the amount of any
refund  received by the  Administrative  Agent or such Lender Party, as the case
may be, with respect to Taxes or Other Taxes paid by the Borrower.

<PAGE>
                                       27



                  (d) Within 30 days after the date of any payment of Taxes, the
Borrower will furnish to the Administrative Agent, at its address referred to in
Section 8.02, the original or a certified copy of a receipt  evidencing  payment
thereof.  If no Taxes are payable in respect of any payment  hereunder  or under
the Notes,  the Borrower  will,  upon  request by any Lender  Party  through the
Administrative  Agent,  furnish to the Administrative  Agent, at such address, a
certificate from each  appropriate  taxing  authority,  or an opinion of counsel
acceptable to the Administrative Agent, in either case stating that such payment
is exempt from or not subject to Taxes.

                  (e)  Each  Lender  Party   organized   under  the  laws  of  a
jurisdiction outside the United States, on or prior to the date of its execution
and delivery of this Agreement in the case of each Bank or Initial Issuing Bank,
as the case may be and on the date of the Assignment and Acceptance  pursuant to
which it becomes a Lender Party in the case of each other Lender Party, and from
time to time  thereafter  if requested  in writing by the Borrower  (but only so
long as such Lender Party  remains  lawfully  able to do so),  shall provide the
Borrower with Internal Revenue Service form 1001 or 4224, as appropriate, or any
successor form prescribed by the Internal Revenue Service,  certifying that such
Lender  Party is entitled  to  benefits  under an income tax treaty to which the
United States is a party which reduces the rate of  withholding  tax on payments
of interest or certifying that the income receivable  pursuant to this Agreement
is  effectively  connected with the conduct of a trade or business in the United
States.  If the form  provided by a Lender  Party at the time such Lender  Party
first  becomes a party to this  Agreement  indicates  a United  States  interest
withholding  tax rate in excess of zero,  withholding  tax at such rate shall be
considered excluded from "Taxes" as defined in Section 2.14(a).

                  (f) For any period  with  respect to which a Lender  Party has
failed to provide the Borrower with the  appropriate  form  described in Section
2.14(e)  (other  than  if  such  failure  is due to a  change  in law  occurring
subsequent to the date on which a form  originally  was required to be provided,
or if such form otherwise is not required under the first sentence of subsection
(e) above),  such Lender  Party shall not be entitled to  indemnification  under
Section  2.14(c) with respect to Taxes imposed by the United  States;  provided,
however,  that  should a Lender  Party  become  subject to Taxes  because of its
failure to deliver a form required hereunder, the Borrower shall take such steps
as the Lender  Party  shall  reasonably  request  to assist the Lender  Party to
recover such Taxes.

                  (g) Notwithstanding any contrary provisions of this Agreement,
in the event that a Lender Party that  originally  provided  such form as may be
required  under  Section  2.14(e)  thereafter  ceases to  qualify  for  complete
exemption from United States  withholding  tax, such Lender Party shall have the

<PAGE>
                                       28


right to assign all of its rights and  obligations  under this  Agreement to any
Eligible Assignee in accordance with Section 8.07(a),  provided that the rate of
United States  withholding  tax  applicable to such Eligible  Assignee shall not
exceed the rate then applicable to the assignor.

                  (h) Without  prejudice to the survival of any other  agreement
of the  Borrower  hereunder,  the  agreements  and  obligations  of the Borrower
contained in this  Section  2.14 shall  survive the payment in full of principal
and interest hereunder and under the Notes.

                  SECTION  2.15.  Sharing of Payments,  Etc. If any Lender Party
shall obtain any payment (whether voluntary,  involuntary,  through the exercise
of any right of set-off,  or otherwise)  on account of the Advances  owing to it
(other than pursuant to Section 2.02(b),  2.07, 2.11, 2.14 or 8.04(b)) in excess
of its ratable share of payments on account of the Revolving  Credit Advances or
Letter of Credit Advances obtained by all the Lender Parties,  such Lender Party
shall forthwith  purchase from the other Lender Parties such  participations  in
the Revolving Credit Advances or Letter of Credit Advances made by them as shall
be necessary to cause such  purchasing  Lender Party to share the excess payment
ratably with each of them, provided, however, that if all or any portion of such
excess payment is thereafter  recovered from such purchasing  Lender Party, such
purchase  from each Lender Party shall be rescinded  and such Lender Party shall
repay to the  purchasing  Lender Party the purchase  price to the extent of such
recovery  together  with an amount equal to such Lender  Party's  ratable  share
(according to the proportion of (i) the amount of such Lender  Party's  required
repayment  to (ii) the total  amount so  recovered  from the  purchasing  Lender
Party) of any interest or other amount paid or payable by the purchasing  Lender
Party in respect of the total amount so recovered.  The Borrower agrees that any
Lender Party so purchasing a participation from another Lender Party pursuant to
this Section 2.15 may, to the fullest extent permitted by law,  exercise all its
rights  of  payment  (including  the  right of  set-off)  with  respect  to such
participation  as fully as if such Lender Party were the direct  creditor of the
Borrower in the amount of such participation.

                  SECTION  2.16.  Letters  of  Credit.  (a) The Letter of Credit
Facility.  Each  Issuing  Bank  severally  agrees,  on the terms and  conditions
hereinafter  set forth, to issue letters of credit (the "Letters of Credit") for
the account of the Borrower  specified by the Borrower  from time to time on any
Business  Day during the period  from the date  hereof  until 60 days before the
Termination Date (i) in an aggregate  Available Amount for all Letters of Credit
issued by such Issuing Bank not to exceed at any time such Issuing Bank's Letter
of Credit  Commitment  (or such greater amount as such Issuing Bank shall agree)
and (ii) in an Available  Amount for each such Letter of Credit not to exceed an
amount equal to the lesser of (x) the Letter of Credit Facility at such time and
(y) an amount equal to the Unused Revolving Credit  Commitments of the Revolving
Credit Lenders at such time.


<PAGE>
                                       29


                  Letters of Credit issued  pursuant to this Section 2.16 may be
automatically  renewable  annually  without  amendment,  and any such  Letter of
Credit shall be automatically  renewed unless  terminated  earlier in accordance
with the  provisions  of such Letter of Credit.  In the event the  issuing  bank
elects not to renew any such Letter of Credit, the Issuing Bank shall notify the
Borrower (with a copy to the  Administrative  Agent) on or prior to the date for
notice of  termination  set forth in such  Letter of Credit (but in any event at
least 30 Business  Days prior to the date of automatic  renewal) of its election
not to renew such  Letter of Credit (a "Notice  of  Termination").  The terms of
each Letter of Credit that is automatically renewable annually shall (x) require
the Issuing Bank that issued such Letter of Credit to give the beneficiary named
in such Letter of Credit  notice of any Notice of  Termination,  (y) permit such
beneficiary,  upon receipt of such  notice,  to draw under such Letter of Credit
prior to the date such Letter of Credit otherwise would have been  automatically
renewed  and (z) not permit the  expiration  date  (after  giving  effect to any
renewal)  of such  Letter of Credit in any event to be  extended to a date later
than 10 days before the Termination Date. If a Notice of Termination is given by
the relevant  Issuing  Bank  pursuant to this  paragraph,  such Letter of Credit
shall  expire on the date on which it  otherwise  would have been  automatically
renewed.  Within the limits of the Letter of Credit Facility, and subject to the
limits  referred to above,  the  Borrower may request the issuance of Letters of
Credit under this Section 2.16(a), repay any Letter of Credit Advances resulting
from drawings thereunder pursuant to Section 2.16(c) and request the issuance of
additional Letters of Credit under this Section 2.16(a).

                  (b) Request for  Issuance.  (i) Each Letter of Credit shall be
issued upon notice,  given not later than 11:00 A.M. (New York City time) on the
third Business Day prior to the date of the proposed  issuance of such Letter of
Credit,  by the  Borrower  to any  Issuing  Bank or by such later date as may be
agreed by the  Borrower  and such  Issuing  Bank  (subject to the proviso to the
penultimate sentence in Section 2.16(a)), which shall give to the Administrative
Agent  and each  Revolving  Credit  Lender  prompt  notice  thereof  by telex or
telecopier).  Each such  notice of  issuance of a Letter of Credit (a "Notice of
Issuance") shall be by telephone,  confirmed immediately in writing, or telex or
telecopier,  specifying  therein the requested (A) date of such issuance  (which
shall be a Business  Day),  (B) Available  Amount of such Letter of Credit,  (C)
expiration  date  of  such  Letter  of  Credit,  (D)  name  and  address  of the
beneficiary of such Letter of Credit and (E) form of such Letter of Credit,  and
shall be accompanied by such  application  and agreement for letter of credit as

<PAGE>
                                       30


such Issuing Bank may specify to the  Borrower for use in  connection  with such
requested  Letter  of  Credit  (a  "Letter  of  Credit  Agreement").  If (x) the
requested form of such Letter of Credit is reasonably acceptable to such Issuing
Bank in its sole  discretion and (y) it has not received  notice of objection to
such  issuance  on the  grounds  that the  Borrower  has failed to  satisfy  the
conditions  set forth in Section  3.02 from the Majority  Lenders,  such Issuing
Bank will,  upon  fulfillment of the applicable  conditions set forth in Article
III, make such Letter of Credit available to the Borrower at its office referred
to in Section 8.02 or as otherwise  agreed with the Borrower in connection  with
such issuance.  In the event and to the extent that the provisions of any Letter
of Credit  Agreement shall conflict with this Agreement,  the provisions of this
Agreement shall govern.

                  (ii) Each Issuing Bank shall furnish (A) to the Administrative
Agent on the  first  Business  Day of each  week a  written  report  summarizing
issuance and  expiration  dates of Letters of Credit issued by such Issuing Bank
during the  previous  week and  drawings  during  such week under all Letters of
Credit issued by such Issuing Bank, (B) to each  Revolving  Credit Lender on the
first  Business  Day of each month a written  report  summarizing  issuance  and
expiration  dates of Letters of Credit  issued by such  Issuing  Bank during the
preceding  month and  drawings  during  such month  under all  Letters of Credit
issued  by such  Issuing  Bank  and (C) to the  Administrative  Agent  and  each
Revolving  Credit Lender on the first  Business Day of each  calendar  quarter a
written report setting forth the average daily aggregate Available Amount during
the preceding  calendar  quarter of all Letters of Credit issued by such Issuing
Bank.

                  (c) Drawing and Reimbursement.  Unless the Borrower shall have
paid the  Administrative  Agent for the account of the  applicable  Issuing Bank
simultaneously  with or prior to such  Issuing  Bank's  payment of a draft drawn
under a Letter of Credit  issued by it in  accordance  with the terms of Section
2.16(a)  an  amount  equal to the  amount  of such  payment  (such  amount to be
notified to the Borrower by the Issuing  Bank on the  Business  Day  immediately
preceding any such  payment),  the payment by such Issuing Bank of a draft drawn
under any such  Letter of  Credit  shall  constitute  for all  purposes  of this
Agreement the making by such Issuing Bank of a Letter of Credit  Advance,  which
shall be a Base Rate Advance,  in the amount of such draft.  Upon written demand
by any Issuing Bank with an outstanding Letter of Credit Advance, with a copy of
such demand to the  Administrative  Agent,  each  Revolving  Credit Lender shall
purchase from such Issuing Bank,  and such Issuing Bank shall sell and assign to
each such Revolving  Credit  Lender,  such Lender Party's Pro Rata Share of such
outstanding Letter of Credit Advance as of the date of such purchase,  by making
available for the account of its Applicable Lending Office to the Administrative
Agent for the account of such  Issuing  Bank,  by deposit to the  Administrative
Agent's  Account,  in same day  funds,  an amount  equal to the  portion  of the
outstanding principal amount of such Letter of Credit Advance to be purchased by
such Lender Party.  The Borrower hereby agrees to each such sale and assignment.
Each  Revolving  Credit  Lender  agrees  to  purchase  its Pro Rata  Share of an
outstanding  Letter of Credit  Advance on (i) the  Business  Day on which demand
therefor is made by the Issuing Bank which made such Advance, provided notice of
such  demand is given not later  than  11:00  A.M.  (New York City time) on such
Business  Day or (ii) the first  Business  Day next  succeeding  such  demand if
notice of such demand is given after such time.  Upon any such  assignment by an
Issuing Bank to any  Revolving  Credit Lender of a portion of a Letter of Credit
Advance,  such  Issuing Bank  represents  and warrants to such Lender Party that
such  Issuing  Bank is the legal and  beneficial  owner of such  interest  being
assigned by it, free and clear of any liens,  but makes no other  representation
or warranty and assumes no responsibility  with respect to such Letter of Credit

<PAGE>
                                       31



Advance,  the Loan  Documents  or the  Borrower.  If and to the extent  that any
Revolving  Credit  Lender  shall not have so made the  amount of such  Letter of
Credit Advance  available to the  Administrative  Agent,  such Revolving  Credit
Lender agrees to pay to the Administrative Agent forthwith on demand such amount
together  with  interest  thereon,  for each day from the date of demand by such
Issuing Bank until the date such amount is paid to the Administrative  Agent, at
the Federal  Funds Rate for its account or the account of such Issuing  Bank, as
applicable.  If such  Lender  Party shall pay to the  Administrative  Agent such
amount for the account of such Issuing Bank on any Business  Day, such amount so
paid in respect of principal shall constitute a Letter of Credit Advance made by
such Lender Party on such Business Day for purposes of this  Agreement,  and the
outstanding  principal  amount  of the  Letter of  Credit  Advance  made by such
Issuing Bank shall be reduced by such amount on such Business Day.

                  (d) Failure to Make Letter of Credit Advances.  The failure of
any Lender  Party to make the  Letter of Credit  Advance to be made by it on the
date  specified in Section  2.16(c)  shall not relieve any other Lender Party of
its obligation  hereunder to make its Letter of Credit Advance on such date, but
no Lender Party shall be  responsible  for the failure of any other Lender Party
to make the Letter of Credit  Advance to be made by such other  Lender  Party on
such date.

                  (e)  Obligations  Absolute.  The  Obligations  of the Borrower
under this Agreement,  any Letter of Credit Agreement and any other agreement or
instrument  relating  to  any  Letter  of  Credit  shall  be  unconditional  and
irrevocable,  and shall be paid  strictly in  accordance  with the terms of this
Agreement,  such  Letter  of  Credit  Agreement  and  such  other  agreement  or
instrument under all circumstances, including, without limitation, the following
circumstances:

                  (i) any lack of validity or  enforceability of this Agreement,
         any Note, any Letter of Credit  Agreement,  any Letter of Credit or any
         other  agreement or instrument  relating  thereto (all of the foregoing
         being, collectively, the "L/C Related Documents");

                  (ii) any change in the time, manner or place of payment of, or
         in any other term of, all or any of the  Obligations of the Borrower in
         respect of any L/C Related Document or any other amendment or waiver of
         or any  consent  to  departure  from  all or  any  of the  L/C  Related
         Documents;

<PAGE>
                                       32



                  (iii) the  existence of any claim,  set-off,  defense or other
         right that the Borrower may have at any time against any beneficiary or
         any  transferee of a Letter of Credit (or any Persons for whom any such
         beneficiary or any such transferee may be acting),  any Issuing Bank or
         any  other  Person,   whether  in  connection  with  the   transactions
         contemplated by the L/C Related Documents or any unrelated transaction;

                  (iv) any  statement or any other  document  presented  under a
         Letter  of  Credit  proving  to  be  forged,  fraudulent,   invalid  or
         insufficient  in any respect or any  statement  therein being untrue or
         inaccurate in any respect;

                  (v)  payment  by any  Issuing  Bank  under a Letter  of Credit
         against  presentation of a draft or certificate  that does not strictly
         comply  with the terms of such  Letter of Credit,  unless such draft or
         certificate  is  substantially   different  from  the  applicable  form
         specified by such Letter of Credit;

                  (vi) any exchange,  release or non-perfection of any Letter of
         Credit Collateral or other  collateral,  or any release or amendment or
         waiver of or consent to departure from any guarantee, for all or any of
         the  Obligations  of  the  Borrower  in  respect  of  the  L/C  Related
         Documents; or

                  (vii) any other circumstance or happening whatsoever,  whether
         or not similar to any of the foregoing,  including, without limitation,
         any  other  circumstance  that  might  otherwise  constitute  a defense
         available to, or a discharge of, the Borrower or a guarantor.

                  SECTION  2.17.  Use of Proceeds.  The proceeds of the Advances
shall be  available  (and the Borrower  agrees that it shall use such  proceeds)
solely to (a) refinance approximately $140,000,000 in outstanding First Mortgage
Bonds and outstanding  indebtedness under the Existing Credit Agreement, and (b)
to  finance  ongoing  expenditures  incurred  in  the  ordinary  course  of  the
Borrower's   utility  business   (including,   without   limitation,   operating
expenditures,  capital  expenditures,  construction  expenditures,  lease rental
payments, interest and taxes).


                                   ARTICLE III

                     CONDITIONS TO EFFECTIVENESS AND LENDING

                  SECTION  3.01.  Conditions  Precedent to  Effectiveness.  This
Agreement  and the  obligations  of the Lender  Parties  hereunder  shall become
effective  on the  Effective  Date,  subject to  satisfaction  of the  following
conditions precedent:

<PAGE>
                                       33



                  (a) The Administrative  Agent shall have received on or before
         the  Effective  Date the  following,  each dated such day,  in form and
         substance satisfactory to the Lender Parties and (except for the Notes)
         in sufficient copies for each Lender Party:

                            (i)  The  Notes  to  the   order  of  the   Lenders,
                  respectively.

                           (ii) Certified copies of the resolutions of the Board
                  of Directors of the Borrower approving each Loan Document, and
                  of all documents  evidencing other necessary  corporate action
                  and governmental approvals, including, without limitation, the
                  required  approval of the PUC,  with respect to each such Loan
                  Document.

                           (iii) A certificate  of the Secretary or an Assistant
                  Secretary  of the  Borrower  certifying  the  names  and  true
                  signatures of the officers of the Borrower  authorized to sign
                  each Loan  Document  and the other  documents  to be delivered
                  hereunder.

                           (iv) A favorable  opinion of Keleher & McLeod,  P.A.,
                  counsel for the Borrower, substantially in the form of Exhibit
                  E hereto.

                           (v) A favorable opinion of Winthrop,  Stimson, Putnam
                  & Roberts, special counsel for the Borrower,  substantially in
                  the form of Exhibit F hereto.

                           (vi) A favorable opinion of Snell & Wilmer as Arizona
                  counsel for the Borrower, substantially in the form of Exhibit
                  G hereto.

                           (vii) A  favorable  opinion of  Shearman &  Sterling,
                  counsel for the Agents, in form and substance  satisfactory to
                  the Agents.

                  (b) The Borrower  shall have paid all fees and expenses of the
         Agents and the Lender Parties,  including the accrued fees and expenses
         of counsel to the Agents payable on or before the Effective Date.

                  (c) On the Effective Date, the Bond Ratings by Moody's and S&P
         shall be at least Ba1 and BB+, respectively.

         SECTION 3.02.  Conditions Precedent to Initial Extension of Credit. The
obligation  of each  Lender  Party to make an  Advance  on the  occasion  of the
initial Borrowing is subject to the condition  precedent that the Lender Parties
shall be satisfied that (i) all  commitments  under the Existing  Agreement have
been  terminated  and (ii) that the First Mortgage Bonds (other than the Insured
Series First Mortgage Bonds) have been retired or defeased, and all amounts owed
with respect to the Existing  Agreement and the First Mortgage Bonds (other than


<PAGE>
                                       34


the Insured Series First Mortgage Bonds) have been, or will  simultaneously with
the initial Borrowing  hereunder,  be paid in full, and the Administrative Agent
shall have received  copies of all notices,  certificates  or other  evidence of
termination of the commitments  under the Existing  Agreement and the retirement
or defeasance of the First  Mortgage  Bonds (other than the Insured Series First
Mortgage Bonds), in form and substance  satisfactory to the Lender Parties. Each
Lender Party hereunder that is a party to the Existing  Agreement hereby waives,
upon execution of this  Agreement,  the three Business Days' notice  required by
Section  2.04(a) of the Existing  Agreement  relating to the  termination of the
commitments under the Existing Agreement.

                  SECTION 3.03.  Conditions  Precedent to Each  Borrowing and to
Rollover of Advances.  The obligation of each Lender Party to make an Advance on
the occasion of each Borrowing (including the initial Borrowing) or to Roll Over
any Advances comprising part of the same Borrowing on any Rollover Date shall be
subject to the further  conditions  precedent that on the date of such Borrowing
(a) the  following  statements  shall be true  (and  each of the  giving  of the
applicable  Notice  of  Borrowing  and the  acceptance  by the  Borrower  of the
proceeds of such  Borrowing or the giving of the  applicable  Notice of Rollover
and the failure to otherwise notify the  Administrative  Agent in writing on the
Rollover  Date by the time  specified  in Section  2.09(a)  shall  constitute  a
representation  and warranty by the Borrower that on the date of such Borrowing,
or on the Rollover Date for such  Rollover,  such  statements  are true,  except
that, in the case of the initial Borrowing  hereunder,  the Administrative Agent
shall have received for the account of each Lender Party a certificate signed by
a duly  authorized  officer of the Borrower,  dated the date of such  Borrowing,
stating that):

                  (i) The  representations  and warranties  contained in Section
         4.01  of  this  Agreement  are  correct  on and as of the  date of such
         Borrowing or Rollover, before and after giving effect to such Borrowing
         or Rollover and to the application of the proceeds therefrom, as though
         made on and as of such date, and

                  (ii) No event has occurred and is continuing,  or would result
         from such Borrowing or from the application of the proceeds  therefrom,
         which constitutes a Default;

and (b) the  Administrative  Agent  shall have  received  such other  approvals,
opinions or documents as any Lender Party through the  Administrative  Agent may
reasonably request.

                  SECTION 3.04.  Determinations  Under  Section  3.01,  3.02, or
3.03. For purposes of determining  compliance  with the conditions  specified in
Section 3.01, 3.02, or 3.03, each Lender Party shall be deemed to have consented
to,  approved or accepted or to be satisfied  with each document or other matter
required  thereunder  to  be  consented  to or  approved  by  or  acceptable  or
satisfactory to the Lender Parties unless an officer of the Administrative Agent
responsible for the  transactions  contemplated by the Loan Documents shall have

<PAGE>
                                       35


received notice from such Lender Party (a) in the case of the Effective Date, by
11:00 A.M. (New York City time) on such date  specifying  its objection  thereto
which notice shall not have been withdrawn by another written notice received by
the Administrative Agent before 2:00 P.M. (New York City time) on such date, and
(b) in the case of a Borrowing  consisting  of, or a Rollover of Advances  into,
(i) Eurodollar Rate Advances, prior to the date of the Borrowing or the Rollover
Date,  as the case may be, and (ii) Base Rate  Advances,  by 2:00 P.M. (New York
City time) on the date of such  Borrowing or the Rollover  Date, as the case may
be, specifying its objection thereto and (in the case of a Borrowing)  declaring
its intention not to fund its ratable  portion of such  Borrowing,  which notice
shall not (in the case of a  written  notice  received  prior to the date of the
Borrowing or the Rollover  Date) have been  withdrawn by another  written notice
received by the  Administrative  Agent before 11:00 A.M. (New York City time) on
the date of such Borrowing or such Rollover Date, as the case may be.


                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES


                  SECTION 4.01.  Representations and Warranties of the Borrower.
The Borrower represents and warrants as follows:

                  (a) The Borrower (i) is a corporation duly organized,  validly
         existing  and in good  standing  under  the  laws of the  State  of New
         Mexico,  (ii)  is duly  qualified  and in good  standing  as a  foreign
         corporation  in each  other  jurisdiction  in which  it owns or  leases
         property  or in which the  conduct of its  business  requires  it to so
         qualify or be licensed, and (iii) has all requisite corporate power and
         authority  to own or lease and operate its  properties  and to carry on
         its business as now conducted  and as proposed to be conducted.  All of
         the  outstanding  capital stock of the Borrower has been validly issued
         and is fully paid and non-assessable.

                  (b) The execution, delivery and performance by the Borrower of
         this  Agreement,  the  Notes  and each  other  Loan  Document,  and the
         consummation of the transactions  contemplated  hereby,  are within the
         Borrower's corporate powers, have been duly authorized by all necessary
         corporate action,  and do not (i) contravene the Borrower's  charter or
         by-laws,  (ii)  violate any law  (including,  without  limitation,  the
         Securities  Exchange  Act of 1934  and  the  Racketeer  Influenced  and
         Corrupt  Organizations  Chapter of the  Organized  Crime Control Act of
         1970), rule, regulation (including, without limitation, Regulation X of
         the Board of Governors of the Federal  Reserve  System),  order,  writ,
         judgment,  injunction,  decree,  determination or award, (iii) conflict

<PAGE>
                                       36


         with or result in the breach of, or  constitute  a default  under,  any
         contract, loan agreement,  indenture, mortgage, deed of trust, lease or
         other  instrument  binding on or  affecting  the Borrower or any of its
         properties  or (iv) result in or require the creation or  imposition of
         any Lien upon or with respect to any of the properties of the Borrower.
         Neither the Borrower nor any of its Subsidiaries is in violation of any
         such law, rule, regulation, order, writ, judgment,  injunction, decree,
         determination  or  award  or in  breach  of  any  such  contract,  loan
         agreement,   indenture,   mortgage,  deed  of  trust,  lease  or  other
         instrument,  the  violation  or breach of which  could  have a material
         adverse effect on the condition  (financial or  otherwise),  results of
         operations,  assets,  business or  prospects  of the  Borrower  and its
         Subsidiaries on a Consolidated basis.

                  (c) No  authorization  or approval or other  action by, and no
         notice to or filing with, any governmental authority or regulatory body
         or any other third party (except any authorization or approval obtained
         prior to the date hereof,  including  any  authorizations  or approvals
         required by the PUC) is required  for the due  execution,  delivery and
         performance by the Borrower of this Agreement,  the Notes, or any other
         Loan Document, or for the consummation of the transactions contemplated
         hereby.

                  (d) This  Agreement  has been,  and each of the Notes and each
         other Loan  Document  when  delivered  hereunder  will have been,  duly
         executed and delivered by the Borrower.  This Agreement is, and each of
         the Notes and each other Loan Document when  delivered  hereunder  will
         be,  the  legal,   valid  and  binding   obligation  of  the  Borrower,
         enforceable against the Borrower in accordance with its terms.

                  (e) The Consolidated  financial statements of the Borrower and
         its  Subsidiaries,  including  the  Consolidated  balance  sheet of the
         Borrower and its  Subsidiaries  as at December 31, 1997 and the related
         Consolidated  statements  of  earnings  (loss)  and  cash  flows of the
         Borrower  and  its   Subsidiaries  for  the  fiscal  year  then  ended,
         accompanied by an opinion of Independent  Accountants,  copies of which
         have  been   furnished  to  each  Lender  Party,   fairly  present  the
         Consolidated  financial  condition of the Borrower and its Subsidiaries
         as at such date and the  Consolidated  results of the operations of the
         Borrower and its Subsidiaries for the period ended on such date, all in
         accordance with generally accepted  accounting  principles applied on a
         consistent  basis.  Since December 31, 1997, there has been no material
         adverse change in the condition  (financial or  otherwise),  results of
         operations,  assets,  business or  prospects  of the  Borrower  and its
         Designated  Subsidiaries,  except as disclosed in the  Borrower's  1997
         Form 10-K.

<PAGE>
                                       37


                  (f) The  Consolidated  balance sheet and related  statement of
         income and cash flow of the Borrower and its Subsidiaries most recently
         delivered  pursuant to Section  5.01(h)(iii)  of this Agreement and the
         accompanying  opinion of  Independent  Accountants  delivered  together
         therewith,  fairly present the Consolidated  financial condition of the
         Borrower and its  Subsidiaries as at the date of such balance sheet and
         the  Consolidated  results of the  operations  of the  Borrower and its
         Subsidiaries  for the period ended on such date, all in accordance with
         GAAP.

                  (g)  No  information,  exhibit  or  report  furnished  by  the
         Borrower  to  the  Administrative  Agent  or to  any  Lender  Party  in
         connection with the syndication efforts of the Administrative Agent, or
         the negotiation of the Loan Documents contained any untrue statement of
         a material fact or omitted to state a material  fact  necessary to make
         the statements made therein not misleading.

                  (h) There is no action,  suit,  investigation,  litigation  or
         proceeding  affecting  the Borrower  pending or  threatened  before any
         court,  governmental  agency  or  arbitrator  that is  likely to have a
         material  adverse  effect on the condition  (financial  or  otherwise),
         results of  operations,  assets,  business or prospects of the Borrower
         and its  Subsidiaries on a Consolidated  basis,  except as disclosed in
         the Borrower's 1997 Form 10-K (the "Disclosed  Litigation"),  and there
         has been no adverse  change in the status,  or financial  effect on the
         Borrower and its Subsidiaries on a Consolidated basis, of the Disclosed
         Litigation.

                  (i) There is no action,  suit,  investigation,  litigation  or
         proceeding affecting the Borrower or any of its Subsidiaries pending or
         threatened  before any court,  governmental  agency or arbitrator  that
         purports to affect the  legality,  validity or  enforceability  of this
         Agreement,  any Note or any other Loan Document, or the consummation of
         the transactions contemplated hereby.

                  (j) No  proceeds  of any  Advance  will be used to acquire any
         equity security of a class that is registered pursuant to Section 12 of
         the Securities Exchange Act of 1934.

                  (k) The  Borrower is not engaged in the  business of extending
         credit for the purpose of purchasing  or carrying  margin stock (within
         the meaning of  Regulation  U issued by the Board of  Governors  of the
         Federal Reserve System), and no proceeds of any Advance will be used to
         purchase  or carry any margin  stock or to extend  credit to others for
         the purpose of purchasing or carrying any margin stock.

<PAGE>
                                       38



                  (l)  Schedule  4.01(m)  contains  a list of (i)  all  electric
         franchises  of the  Borrower  in effect  as of the date of the  initial
         Borrowing, (ii) expiration dates for each such franchise, and (iii) the
         percentage  of  revenues  of all  electric  utility  operations  of the
         Borrower  derived  from  each  operating  unit  with  respect  to  such
         franchises for the September 1997 billing period. Schedule 4.01(m) also
         contains similar information with respect to the electric franchise for
         the City of Albuquerque, which has expired.

                  (m) Set forth on  Schedule  4.01(n)  hereto is a complete  and
         accurate list of all Plans,  Multiemployer Plans and Welfare Plans with
         respect to any employees of the Borrower as of the date hereof.

                  (n) No ERISA Event has occurred or is  reasonably  expected to
         occur with respect to any Plan of the Borrower.

                  (o)  Schedule B  (Actuarial  Information)  to the 1996  annual
         report  (Form 5500  Series)  for each Plan of the  Borrower,  copies of
         which have been filed with the Internal  Revenue  Service,  is complete
         and accurate and fairly  presents the funding  status of such Plan, and
         since the date of such  Schedule B there has been no  material  adverse
         change in such funding status.

                  (p) Neither the Borrower nor any of its ERISA  Affiliates  has
         incurred or is reasonably expected to incur any Withdrawal Liability to
         any Multiemployer Plan.

                  (q) Neither the Borrower nor any of its ERISA  Affiliates  has
         been  notified  by  the  sponsor  of a  Multiemployer  Plan  that  such
         Multiemployer Plan is in reorganization or has been terminated,  within
         the  meaning  of Title IV of ERISA,  and no  Multiemployer  Plan of the
         Borrower  is  reasonably  expected  to  be in  reorganization  or to be
         terminated, within the meaning of Title IV of ERISA.

                  (r) No Prohibited  Transaction  has occurred that has resulted
         in or is  reasonably  likely to result in a material  liability  of the
         Borrower.

                  (s) The operations  and  properties of the Borrower  comply in
         all material respects with all  Environmental  Laws and neither utilize
         nor contain nor are affected by any  Hazardous  Materials  that are not
         treated in  compliance  with all  Environmental  Laws,  and on the date
         hereof, the Borrower does not have any material  liability,  contingent
         or otherwise,  under any Environmental  Law, except as set forth in the
         Borrower's 1997 Form 10-K.

<PAGE>
                                       39



                  (t) The Borrower has filed, has caused to be filed or has been
         included  in all  tax  returns  (federal,  state,  local  and  foreign)
         required  to be filed and has paid all taxes  shown  thereon to be due,
         together with applicable interest and penalties.

                  (u) Set forth on  Schedule  4.01(v)  hereto is a complete  and
         accurate  list of the Material  Leases on the date hereof,  showing the
         expiration  date and  annual  rental  cost  thereof.  The  Borrower  is
         entitled  to  exercise  all of the  rights  of lessee  purported  to be
         granted to the Borrower under each such Material Lease.

                  (v) Set forth on  Schedule  4.01(w)  hereto is a complete  and
         accurate  list of all  Indebtedness  (other  than  Material  Leases and
         intercompany  Indebtedness  that would be  eliminated  in preparing the
         Consolidated financial statements of the Borrower and its Subsidiaries)
         of the Borrower,  showing as of the Effective Date the principal amount
         outstanding, obligor, obligee and maturity date thereof.

                  (w) Schedule 4.01(x) hereto,  as most recently provided to the
         Administrative  Agent,  sets forth the same (i) amounts with respect to
         the interest  portion of payments  under the  Material  Leases and (ii)
         discount  rate used to calculate  the net present  value of all amounts
         payable under the Material  Leases as have been most recently  provided
         (or that the Borrower intends to provide shortly) to Moody's and S&P or
         as have otherwise been agreed to by the Majority Lenders.

                                    ARTICLE V

                            COVENANTS OF THE BORROWER

                  SECTION 5.01.  Affirmative  Covenants.  So long as any Advance
shall remain unpaid or any Lender Party shall have any Commitment hereunder, the
Borrower will, unless the Majority Lenders shall otherwise consent in writing:

                  (a) Compliance with Laws, Etc. Comply in all material respects
         with (i) all material laws, rules,  regulations and orders  (including,
         without  limitation,  ERISA and all applicable  Environmental Laws) and
         (ii) all other  laws,  rules,  regulations  and orders,  promptly  upon
         discovery of any non-compliance.

                  (b) Payment of Taxes, Etc. Pay and discharge,  before the same
         shall become  delinquent,  (i) all taxes,  assessments and governmental
         charges or levies  imposed  upon it or upon its  property  and (ii) all
         lawful claims that, if unpaid, might by law become a Lien (other than a
         Permitted Lien) upon its property; provided, however, that the Borrower
         shall not be required to pay or discharge any such tax, assessment,

<PAGE>
                                       40



         charge or claim  that is being  contested  in good  faith and by proper
         proceedings and as to which appropriate reserves are being maintained.

                  (c)   Maintenance  of  Insurance.   Maintain   insurance  with
         responsible and reputable  insurance  companies or associations in such
         amounts  and  covering  such risks as is usually  carried by  companies
         engaged in similar businesses and owning similar properties in the same
         general  areas  in  which  the  Borrower  operates;  provided  that the
         Borrower may maintain  reasonable amounts of self insurance  consistent
         with its financial condition and other relevant criteria.

                  (d)   Preservation  of  Corporate   Existence  and  Approvals.
         Preserve and maintain (i) its corporate existence,  rights (charter and
         statutory),  franchises  and  privileges  in  the  jurisdiction  of its
         incorporation,   and  qualify  and  remain   qualified   as  a  foreign
         corporation  in  each  jurisdiction  in  which  such  qualification  is
         necessary or desirable  in view of its business and  operations  or the
         ownership of its  properties;  provided,  however,  that nothing herein
         contained shall prevent any merger or consolidation  permitted  without
         the written consent of the Majority  Lenders by Section 5.02(b) of this
         Agreement; and (ii) all approvals, authorizations, licenses, franchises
         and other permissions of all governmental,  judicial,  regulatory,  and
         other agencies  necessary to enable each of the Borrower to operate and
         maintain its property, business and operations in the same condition as
         in effect or carried  on, as the case may be, on the date  hereof or as
         such  property,  business and operations may hereafter be maintained or
         carried on in accordance with the Loan Documents,  if the failure to so
         maintain  and  preserve  any  such  approval,  authorization,  license,
         franchise or other permission would be reasonably likely to result in a
         material  adverse  change in the condition  (financial  or  otherwise),
         results of  operations,  assets,  business or prospects of the Borrower
         and its Subsidiaries on a Consolidated basis.

                  (e) Maintenance of Properties,  Etc. Maintain and preserve all
         of its  properties  that  are  used or  useful  in the  conduct  of its
         business in good working  order and  condition,  ordinary wear and tear
         excepted.

                  (f)  Transactions  with  Affiliates.  Conduct all transactions
         otherwise permitted under the Loan Documents with any of its Affiliates
         on terms  that are fair and  reasonable  and no less  favorable  to the
         Borrower than it would obtain in a comparable arm's-length  transaction
         with a Person not an Affiliate.

                  (g) Total  Debt to Total  Capitalization.  Maintain a ratio of
         Consolidated  Total Debt to Consolidated  Total  Capitalization  of the
         Borrower  and its  Subsidiaries,  measured  at the  end of each  fiscal
         quarter, of not more than 0.70 to 1.

<PAGE>
                                       41


                  (h) Reporting Requirements. Furnish to the Lender Parties:

                           (i) as soon as possible  and in any event within five
                  days after the  occurrence  of each Default  continuing on the
                  date of such  statement,  a statement  of the chief  financial
                  officer of the Borrower  setting forth details of such Default
                  and the action  that the  Borrower  has taken and  proposes to
                  take with respect thereto;

                           (ii) as soon as available  and in any event within 60
                  days after the end of each of the first three quarters of each
                  fiscal  year  of  the  Borrower,  the  Consolidated  financial
                  statements  of the  Borrower  and its  Subsidiaries  for  such
                  fiscal quarter,  including the  Consolidated  balance sheet of
                  the  Borrower  and  its  Subsidiaries  as of the  end of  such
                  quarter and the related  Consolidated  statements  of earnings
                  (loss) and cash flows of the Borrower and its Subsidiaries for
                  the period  commencing at the end of the previous  fiscal year
                  and ending with the end of such quarter, setting forth in each
                  case in  comparative  form the  corresponding  figures for the
                  corresponding  period of the  preceding  fiscal  year,  all in
                  reasonable  detail and duly  certified  (subject  to  year-end
                  audit  adjustments)  by the chief  accounting  officer  of the
                  Borrower as having  been  prepared  in  accordance  with GAAP,
                  together with (A) a certificate of the chief financial officer
                  of the  Borrower  stating  that no Default has occurred and is
                  continuing  or,  if  any  such  Default  has  occurred  and is
                  continuing,  a  statement  as to the  nature  thereof  and the
                  action that the  Borrower  has taken and proposes to take with
                  respect thereto and (B) a schedule in form satisfactory to the
                  Administrative  Agent of the computations used by the Borrower
                  in  determining  compliance  with the  covenants  contained in
                  Sections 5.01(g);

                           (iii) as soon as  available  and in any event  within
                  120 days after the end of each fiscal year of the Borrower,  a
                  copy of the annual audit report for such year for the Borrower
                  and  its  Subsidiaries,  including  therein  the  Consolidated
                  financial  statements of the Borrower and its Subsidiaries for
                  such fiscal year,  including the Consolidated balance sheet of
                  the Borrower and its Subsidiaries as of the end of such fiscal
                  year  and the  related  Consolidated  statements  of  earnings
                  (loss) and cash flows of the Borrower and its Subsidiaries for
                  such  fiscal  year,  in each case  accompanied  by an  opinion
                  acceptable to the Majority Lenders of Independent Accountants,
                  together with (A) a  certificate  of such  accounting  firm in
                  substantially  the  form  of  Exhibit  H (with  the  schedules
                  referred to therein attached thereto) and (B) a certificate of
                  the chief  financial  officer of the Borrower  stating that no
                  Default has occurred and is continuing or, if any such Default

<PAGE>
                                       42



                  has occurred and is  continuing,  a statement as to the nature
                  thereof  and the  action  that  the  Borrower  has  taken  and
                  proposes to take with respect thereto;

                           (iv)  promptly  and in any event  within 10  Business
                  Days after the Borrower or any of its ERISA  Affiliates  knows
                  or has  reason to know that any ERISA  Event has  occurred,  a
                  statement  of the  chief  financial  officer  of the  Borrower
                  describing  such ERISA Event and the action,  if any, that the
                  Borrower  or such ERISA  Affiliate  has taken and  proposes to
                  take with respect thereto;

                           (v) promptly  and in any event  within five  Business
                  Days after receipt thereof by the Borrower or any of its ERISA
                  Affiliates,  copies of each notice  from the PBGC  stating its
                  intention to terminate any Plan or to have a trustee appointed
                  to administer any Plan;

                           (vi)  promptly  and in any event within 30 days after
                  the filing thereof with the Internal Revenue  Service,  copies
                  of each  Schedule  B  (Actuarial  Information)  to the  annual
                  report  (Form 5500  Series)  with  respect to each Plan of the
                  Borrower;

                           (vii)  promptly and in any event within five Business
                  Days after receipt thereof by the Borrower or any of its ERISA
                  Affiliates from the sponsor of a Multiemployer Plan, copies of
                  each  notice  received  by the  Borrower  or any of its  ERISA
                  Affiliates   concerning   (A)  the  imposition  of  Withdrawal
                  Liability by any Multiemployer Plan, (B) the reorganization or
                  termination,  within the meaning of Title IV of ERISA,  of any
                  Multiemployer Plan or (C) the amount of liability incurred, or
                  that may be  incurred,  by the  Borrower  or any of its  ERISA
                  Affiliates  in connection  with any event  described in clause
                  (A) or (B);

                           (viii)  promptly  and in any event within 10 Business
                  Days after the Borrower or any of its ERISA  Affiliates  knows
                  or has reason to know that any Prohibited  Transaction that is
                  reasonably  likely to result in a  material  liability  of the
                  Borrower  has  occurred,  a statement  of the chief  financial
                  officer of the Borrower describing such Prohibited Transaction
                  and the  action,  if any,  that  the  Borrower  or such  ERISA
                  Affiliate has taken and proposes to take with respect thereto;

                           (ix) promptly after the commencement thereof,  notice
                  of all  actions,  suits and  proceedings  before  any court or
                  governmental department,  commission, board, bureau, agency or

<PAGE>
                                       43



                  instrumentality,  domestic or foreign,  affecting the Borrower
                  or any of its  Subsidiaries  of the type  described in Section
                  4.01(i) or (j);

                           (x)  promptly  after the  sending or filing  thereof,
                  copies  of all  proxy  statements,  financial  statements  and
                  reports  that  the  Borrower  sends to its  stockholders,  and
                  copies of all regular,  periodic and special reports,  and all
                  registration  statements,  that the  Borrower  files  with the
                  Securities  and  Exchange   Commission  or  any   governmental
                  authority  that  may be  substituted  therefor,  or  with  any
                  national securities exchange;

                           (xi) promptly after the furnishing thereof, copies of
                  any  statement or report  furnished to any other holder of the
                  securities  of the  Borrower  with  respect to any  pending or
                  potential   non-compliance   with  the   terms  of  any  other
                  indenture,  loan  or  credit  or  similar  agreement,  and not
                  otherwise  required  to be  furnished  to the  Lender  Parties
                  pursuant to any other clause of this Section 5.01(h);

                           (xii) promptly, and in any event within five Business
                  Days after any change in the  information  regarding  Material
                  Leases of the type contained on Schedule 4.01(x)  furnished by
                  the Borrower to Moody's or S&P, notice of such change; and

                           (xiii)   such  other   information   respecting   the
                  business,  condition  (financial  or  otherwise),  operations,
                  performance,  properties  or  prospects of the Borrower as any
                  Lender Party may from time to time reasonably request.

                  (i)  Reference  Bond  Ratings.  Use its best efforts to ensure
         that its senior  unsecured  debt is at all times  rated by Moody's  and
         S&P, and promptly  notify the  Administrative  Agent should either such
         rating cease to be in effect or become unavailable for any reason.

                  (j) Visitation Rights. At any reasonable time and from time to
         time,  permit any Agent or any of the  Lender  Parties or any agents or
         representatives thereof (i) to examine and make copies of and abstracts
         from the records and books of account of, and visit the  properties of,
         the Borrower and (ii) to discuss the affairs,  finances and accounts of
         the Borrower  with any of their  officers or  directors  and with their
         independent certified public accountants.

                  (l) Keeping of Books. Keep proper books of record and account,
         in  which  full and  correct  entries  shall  be made of all  financial
         transactions  and the assets and business of the Borrower in accordance
         with GAAP.
<PAGE>
                                       44



                  SECTION 5.02. Negative Covenants. So long as any Advance shall
remain  unpaid or any Lender  Party  shall have any  Commitment  hereunder,  the
Borrower will not, without the written consent of the Majority Lenders:

                  (a) Liens, Etc. Create,  incur, assume or suffer to exist, any
         Lien on or  with  respect  to any of its  properties  of any  character
         (including,   without  limitation,   accounts)  whether  now  owned  or
         hereafter acquired,  or sign or file, under the Uniform Commercial Code
         of any jurisdiction,  a financing  statement that names the Borrower as
         debtor,  or sign any security  agreement  authorizing any secured party
         thereunder to file such financing statement, or assign, any accounts or
         other right to receive income,  excluding,  however, from the operation
         of the foregoing restrictions the following:

                           (i)      Permitted Liens;

                           (ii)  purchase   money  Liens  upon  or  in  property
                  acquired  or held by the  Borrower in the  ordinary  course of
                  business to secure the purchase  price of such  property or to
                  secure  Indebtedness   incurred  solely  for  the  purpose  of
                  financing the  acquisition  of any such property to be subject
                  to such Liens,  or Liens  existing on any such property at the
                  time of acquisition,  or extensions,  renewals or replacements
                  of any of the  foregoing  for  the  same or a  lesser  amount;
                  provided,  however, that no such Lien shall extend to or cover
                  any property  other than the property being  acquired,  and no
                  such  extension,  renewal or  replacement  shall  extend to or
                  cover any property not  theretofore  subject to the Lien being
                  extended,  renewed or replaced;  and provided further that the
                  aggregate principal amount of the Indebtedness at any one time
                  outstanding  secured by Liens  permitted  by this  clause (ii)
                  shall not exceed $25,000,000 at any one time outstanding;

                           (iii)  The   assignment  of,  or  liens  on,  utility
                  regulatory assets related to PUC 2183 Amounts;

                           (iv)  The  assignment  of,  or  Liens  on,   accounts
                  receivable  and  signing  and  filing  of  related   financing
                  statements under the Uniform Commercial Code of the applicable
                  jurisdictions;

                           (v) The assignment of, or Liens on, demand, energy or
                  wheeling revenues,  or on capacity reservation or option fees,
                  payable to the Borrower with respect to any wholesale electric
                  service or  transmission  agreements,  the  assignment  of, or

<PAGE>
                                       45


                  Liens on,  revenues from energy  services  contracts,  and the
                  assignment  of, or Liens on,  capacity  reservation  or option
                  fees  payable to the  Borrower  with  respect  to asset  sales
                  permitted herein;

                           (vi) other  Liens not  covered in clauses (i) through
                  (v) above securing  Indebtedness in an aggregate amount not to
                  exceed $10,000,000;

                           (vii) the  creation of Liens in  connection  with the
                  refinancing of existing Indebtedness; and

                           (viii)  signing  and  filing  appropriate   financing
                  statements under the Uniform Commercial Code of the applicable
                  jurisdictions  to  the  extent  required  in  connection  with
                  transactions not otherwise prohibited hereunder.

                  (b) Mergers,  Etc. Merge with or into or  consolidate  with or
         into any Person,  or acquire all or substantially  all of the assets of
         any Person,  except that the Borrower may merge or consolidate  with or
         into any Person if the  survivor  of such merger or  consolidation  (A)
         assumes the  obligations  of the Borrower  hereunder,  (b) is a utility
         whose business is not substantially different from that of the Borrower
         and (C) the debt rating of the  survivor's  senior  unsecured debt from
         each of Moody's and S&P is equal to or better than that of the Borrower
         immediately prior to giving effect to such merger or consolidation.

                  (c) Sales, Etc. of Assets. Sell, lease,  transfer or otherwise
         dispose of, any of its assets (including,  without  limitation,  all or
         substantially all of its assets, whether in one transaction or a series
         of related  transactions)  except (i) in connection  with a transaction
         authorized  by subsection  (b) of this Section;  (ii) sales of accounts
         receivable and energy services contract revenues; (iii) sales of assets
         (excluding  those  permitted  in clauses (i) and (ii)  hereof) for fair
         value,  if such  value  does  not,  for each  transaction  or series of
         related transactions in any calendar year, exceed 25% of the book value
         of the consolidated  assets of the Borrower and its Subsidiaries;  (iv)
         sales  of  utility   regulatory  assets  and   corresponding   accounts
         receivable related to PUC 2183 Amounts;  and (v) sale, lease,  transfer
         or other  disposition,  at less than fair value,  of any other  assets,
         provided that the aggregate  book value of such assets shall not exceed
         $10,000,000 in any calendar year.

                  (d) Change in Nature of Business.  Except in  connection  with
         transactions  permitted under Section  5.02(b) and (c) above,  make any
         material change in the nature of its business as carried on at the date
         hereof.

<PAGE>
                                       46



                  (e) Accounting  Changes.  Make or permit, or permit any of its
         Subsidiaries  to make or permit,  any change in accounting  policies or
         reporting  practices,  except as required by GAAP,  or as  permitted by
         GAAP, if the amounts involved are not material.

                  (f)  Limitation  on  Dividends.  Declare or make any  dividend
         payment or other  distribution  of assets,  properties,  cash,  rights,
         obligations  or  securities on account of any shares of common stock of
         the Borrower,  or purchase,  redeem or otherwise  acquire for value (or
         permit any of its  Subsidiaries to do so) any shares of common stock of
         the  Borrower  or any  warrants,  rights or options to acquire any such
         shares, now or hereafter outstanding,  except that the Borrower may (i)
         declare and make any dividend payment or other distribution  payable in
         common  stock of the  Borrower,  (ii)  purchase,  redeem  or  otherwise
         acquire  shares of its common stock or  warrants,  rights or options to
         acquire  any  such  shares  with  the   proceeds   received   from  the
         substantially  concurrent  issue of new shares of its common  stock and
         (iii)  declare or pay cash  dividends  to its common  stockholders  and
         purchase,  redeem or  otherwise  acquire  shares of its common stock or
         warrants,  rights or options to acquire any such shares for cash during
         any  12-month  period in an amount  not to  exceed  100% of net  income
         (excluding   extraordinary   gains  and  extraordinary   losses,   such
         extraordinary  gains and  extraordinary  losses to include,  but not be
         limited to,  gains and losses from the sale,  lease,  transfer or other
         disposition  of assets of the  Borrower and its  Subsidiaries  for such
         period)  computed  on a  consolidated  basis,  less the  amount of cash
         dividends  declared  and paid to the  holders  of any class of  capital
         stock  (other  than  common  stock)  of the  Borrower,  provided  that,
         immediately  after giving effect to such proposed  action,  no Event of
         Default or event which,  with the giving of notice or lapse of time, or
         both, would constitute an Event of Default would exist.


                                   ARTICLE VI

                                EVENTS OF DEFAULT


                  SECTION  6.01.  Events  of  Default.  If any of the  following
events ("Events of Default") shall occur and be continuing:

                  (a) The  Borrower  shall fail to pay (i) any  principal of any
         Advance  when the same  becomes  due and  payable  (including,  without
         limitation,  in  connection  with  any  mandatory  prepayment)  or (ii)
         interest on any Advance or any other amount under any Loan Document for
         five days  after  such  interest  or other  amount  has  become due and
         payable; or

<PAGE>
                                       47


                  (b) Any  representation  or warranty  made by the Borrower (or
         any of its  officers)  under or in  connection  with any Loan  Document
         shall prove to have been  incorrect in any material  respect when made;
         or

                  (c) The  Borrower  shall fail to  perform  or observe  (i) any
         term, covenant or agreement contained in Section 5.01(g), 5.01(h)(i) or
         5.02,  or (ii) any other term,  covenant or agreement  contained in any
         Loan  Document on its part to be  performed or observed if such failure
         shall remain  unremedied for 10 days after written notice thereof shall
         have been  given to the  Borrower  by the  Administrative  Agent or any
         Lender Party; or

                  (d) The Borrower shall fail to pay any principal of or premium
         or  interest  or other  amounts on any  Indebtedness  outstanding  in a
         principal amount of at least $5,000,000 in the aggregate (but excluding
         Indebtedness  outstanding  hereunder)  of the  Borrower  when  the same
         becomes  due and  payable  (whether  by  scheduled  maturity,  required
         prepayment,  acceleration, demand or otherwise), and such failure shall
         continue after the applicable  grace period,  if any,  specified in any
         agreement or  instrument  relating to such  Indebtedness;  or any other
         event shall occur or  condition  shall  exist  under any  agreement  or
         instrument  relating to such  Indebtedness and shall continue after the
         applicable grace period, if any,  specified  therein,  if the effect of
         such event or condition is to accelerate, or to permit the acceleration
         of, the maturity of such  Indebtedness;  or such Indebtedness  shall be
         declared to be due and payable,  or required to be prepaid  (other than
         by a regularly scheduled required prepayment),  redeemed,  purchased or
         defeased,  or an offer to prepay,  redeem,  purchase  or  defease  such
         Indebtedness  shall be required  to be made,  in each case prior to the
         stated maturity thereof; or

                  (e) The  Borrower  shall  generally  not pay its debts as such
         debts  become due, or shall admit in writing its  inability  to pay its
         debts generally,  or shall make a general assignment for the benefit of
         creditors;  or any  proceeding  shall be  instituted  by or against the
         Borrower  seeking to adjudicate it a bankrupt or insolvent,  or seeking
         liquidation,  winding  up,  reorganization,   arrangement,  adjustment,
         protection,  relief,  or  composition  of it or its debts under any law
         relating  to  bankruptcy,  insolvency  or  reorganization  or relief of
         debtors, or seeking the entry of an order for relief or the appointment
         of a receiver,  trustee,  custodian or other similar official for it or
         for any  substantial  part of its property and, in the case of any such
         proceeding  instituted  against it (but not  instituted by it),  either
         such proceeding shall remain undismissed or unstayed for a period of 30
         days,  or any of the  actions  sought  in such  proceeding  (including,
         without  limitation,  the entry of an order for relief against,  or the
         appointment of a receiver, trustee, custodian or other similar official
         for, it or for any  substantial  part of its property)  shall occur; or
         the Borrower  Subsidiaries shall take any corporate action to authorize
         any of the actions set forth above in this subsection (e); or

<PAGE>
                                       48


                  (f) Any  judgment  or order for the  payment of money shall be
         rendered  against the  Borrower  (i) in excess of  $20,000,000  or (ii)
         which,  when added to all other such judgments or orders rendered on or
         after the date hereof, exceeds $40,000,000 in the aggregate, and either
         (A) enforcement  proceedings  shall have been commenced by any creditor
         upon  such  judgment  or order or (B) there  shall be any  period of 30
         consecutive  days  during  which such  judgment or order shall not have
         been satisfied and a stay of enforcement of such judgment or order,  by
         reason of a pending appeal or otherwise, shall not be in effect; or

                  (g) Any ERISA Event shall have occurred with respect to a Plan
         of the Borrower and the sum (determined as of the date of occurrence of
         such  ERISA  Event)  of  the   Insufficiency   of  such  Plan  and  the
         Insufficiency  of any and all other Plans of the Borrower  with respect
         to which an ERISA  Event  shall  have  occurred  and then exist (or the
         liability  of the  Borrower  and its ERISA  Affiliates  related to such
         ERISA Event) exceeds $5,000,000; or

                  (h) The  Borrower  or any of its ERISA  Affiliates  shall have
         been  notified  by the  sponsor  of a  Multiemployer  Plan  that it has
         incurred  Withdrawal  Liability to such Multiemployer Plan in an amount
         that,  when  aggregated  with all other amounts  required to be paid to
         Multiemployer  Plans  by the  Borrower  and  its  ERISA  Affiliates  as
         Withdrawal Liability  (determined as of the date of such notification),
         exceeds $2,000,000 or requires payments exceeding $1,000,000 per annum;
         or

                  (i) The  Borrower  or any of its ERISA  Affiliates  shall have
         been  notified  by  the  sponsor  of a  Multiemployer  Plan  that  such
         Multiemployer Plan is in reorganization or is being terminated,  within
         the   meaning  of  Title  IV  of  ERISA,   and  as  a  result  of  such
         reorganization or termination the aggregate annual contributions of the
         Borrower and its ERISA Affiliates to all  Multiemployer  Plans that are
         then  in  reorganization  or  being  terminated  have  been  or will be
         increased over the amounts  contributed to such Multiemployer Plans for
         the plan years of such  Multiemployer  Plans immediately  preceding the
         plan year in which  such  reorganization  or  termination  occurs by an
         amount exceeding $2,000,000; or

                  (j) A  Prohibited  Transaction  shall  have  occurred  and the
         Borrower has  incurred or is  reasonably  likely to incur  liability in
         connection therewith in an amount exceeding $2,000,000;

<PAGE>
                                       49


then, and in any such event, the Administrative  Agent (i) shall at the request,
or may with the consent,  of the Majority  Lenders,  by notice to the  Borrower,
declare the  obligation of each Lender Party to make Advances to be  terminated,
whereupon the same shall forthwith terminate,  and (ii) shall at the request, or
may with the  consent,  of the  Majority  Lenders,  by notice  to the  Borrower,
declare the Notes, all interest thereon and all other amounts payable under this
Agreement  to be  forthwith  due and  payable,  whereupon  the  Notes,  all such
interest  and all such amounts  shall  become and be forthwith  due and payable,
without presentment, demand, protest or further notice of any kind, all of which
are hereby expressly waived by the Borrower;  provided, however, in the event of
an actual or deemed  entry of an order for relief with  respect to the  Borrower
under the Federal  Bankruptcy  Code,  (A) the obligation of each Lender Party to
make Advances  shall  automatically  be terminated  and (B) the Notes,  all such
interest and all such amounts shall automatically become and be due and payable,
without presentment, demand, protest or any notice of any kind, all of which are
hereby expressly waived by the Borrower.

                  SECTION 6.02. Actions in Respect of the Letters of Credit upon
Default. (a) If any Event of Default shall have occurred and be continuing,  the
Administrative  Agent  may,  or shall at the  request of the  Majority  Lenders,
irrespective  of whether it is taking any of the  actions  described  in Section
6.01 or  otherwise,  make demand upon the Borrower to, and  forthwith  upon such
demand  the  Borrower  will,  pay to the  Administrative  Agent on behalf of the
Lender Parties in same day funds at the Administrative Agent's office designated
in such  demand,  for  deposit  in a special  letter of credit  cash  collateral
account to be maintained  with and in the name of the  Administrative  Agent and
under the sole dominion and control of the Administrative  Agent for its benefit
and the  ratable  benefit  of the  Lender  Parties  (the  "L/C  Cash  Collateral
Account"),  an amount equal to the aggregate  Available Amount of all Letters of
Credit then outstanding. If at any time the Administrative Agent determines that
any funds held in the L/C Cash  Collateral  Account  are subject to any right or
claim of any Person other than the  Administrative  Agent and the Lender Parties
or that the total  amount of such  funds is less  than the  aggregate  Available
Amount of all Letters of Credit, the Borrower will, forthwith upon demand by the
Administrative Agent, pay to the Administrative Agent, as additional funds to be
deposited and held in the L/C Cash  Collateral  Account,  an amount equal to the
excess of (a) such  aggregate  Available  Amount  over (b) the  total  amount of
funds,  if  any,  then  held  in  the  L/C  Cash  Collateral  Account  that  the
Administrative  Agent  determines  to be free and  clear of any such  right  and
claim.

                  (b)  The   Borrower   hereby   pledges   and  assigns  to  the
Administrative  Agent for its  benefit  and the  ratable  benefit  of the Lender
Parties,  and grants to the Administrative Agent for its benefit and the ratable
benefit  of the  Lender  Parties  a lien  on and a  security  interest  in,  the
following collateral (the "Letter of Credit Collateral"):

<PAGE>
                                       50


                  (i)  the L/C  Cash  Collateral  Account,  all  cash  deposited
         therein,  and all certificates  and  instruments,  if any, from time to
         time representing or evidencing the L/C Cash Collateral Account;

                  (ii) all notes,  certificates of deposit and other instruments
         from time to time hereafter  delivered to or otherwise possessed by the
         Administrative  Agent for or on behalf of the Borrower in  substitution
         for or in respect of any or all of the then  existing  Letter of Credit
         Collateral;

                  (iii) all interest,  dividends,  cash,  instruments  and other
         property   from  time  to  time   received,   receivable  or  otherwise
         distributed  in  respect of or in  exchange  for any or all of the then
         existing Letter of Credit Collateral; and

                  (iv) to the extent not covered by clauses  (i)  through  (iii)
         above,  all  proceeds of any or all of the  foregoing  Letter of Credit
         Collateral.

The lien and  security  interest  granted  hereby  secures  the  payment  of all
Obligations  of the Borrower now or hereafter  existing  hereunder and under any
other Loan Document.

                  (c) The Borrower hereby authorizes the Administrative Agent to
apply,  from time to time after funds are  deposited in the L/C Cash  Collateral
Account,  funds then held in the L/C Cash  Collateral  Account to the payment of
any amounts, in such order as the Administrative  Agent may elect, as shall have
become or shall become due and payable by the Borrower to the Lender  Parties in
respect of the Letters of Credit.

                  (d) Neither the Borrower nor any Person  claiming or acting on
behalf of or through the  Borrower  shall have any right to withdraw  any of the
funds held in the L/C Cash  Collateral  Account,  except as  provided in Section
6.02(h).

                  (e) The Borrower agrees that it will not (i) sell or otherwise
dispose of any  interest  in the Letter of Credit  Collateral  or (ii) create or
permit to exist any lien,  security interest or other charge or encumbrance upon
or with  respect  to any of the  Letter of  Credit  Collateral,  except  for the
security interest created by this Section 6.02.

                  (f) If  any  Event  of  Default  shall  have  occurred  and be
continuing:

                  (i) The  Administrative  Agent  may,  in its sole  discretion,
         without  notice to the  Borrower  except as  required by law and at any
         time from time to time,  charge, set off and otherwise apply all or any
         part of first,  the  Obligations  with respect to Letters of Credit and
         second, the other Obligations of the Borrower now or hereafter existing
         under  any of the  Loan  Documents,  against  the L/C  Cash  Collateral

<PAGE>
                                       51


         Account or any part thereof, in such order as the Administrative  Agent
         shall elect.  The  Administrative  Agent agrees  promptly to notify the
         Borrower   after  any  such  set-off  and   application   made  by  the
         Administrative  Agent,  provided  that the  failure to give such notice
         shall not affect the  validity  of such  set-off and  application.  The
         rights of the  Administrative  Agent under this Section  6.02(f) are in
         addition  to other  rights  and  remedies  (including  other  rights of
         set-off) that the Administrative Agent may have.

                  (ii) The Administrative  Agent may also exercise,  in its sole
         discretion,  in respect of the L/C Cash Collateral Account, in addition
         to the other  rights and  remedies  provided  for  herein or  otherwise
         available  to it, all the rights and  remedies of a secured  party upon
         default under the Uniform Commercial Code in effect in the State of New
         York at that time.

                  (iii) Any cash held in the L/C Cash  Collateral  Account,  and
         all cash proceeds  received by the  Administrative  Agent in respect of
         any sale of,  collection from or other realization upon all or any part
         of the L/C  Cash  Collateral  Account  may,  in the  discretion  of the
         Administrative  Agent, then or at any time thereafter be applied (after
         payment of any amounts payable pursuant to Section 8.04) in whole or in
         part by the Administrative  Agent for the ratable benefit of the Lender
         Parties  against all or any part of the obligations of the Borrower now
         or hereafter  existing under any of the Loan Documents in such order as
         the Administrative Agent may elect.

                  (g) The Administrative Agent shall be deemed to have exercised
reasonable  care  in the  custody  and  preservation  of the  Letter  of  Credit
Collateral   if  the  Letter  of  Credit   Collateral   is  accorded   treatment
substantially  equal to that  which the  Administrative  Agent  accords  its own
property,  it being understood that the Administrative  Agent shall not have any
responsibility  or liability for taking any necessary  steps to preserve  rights
against any parties with respect to the Letter of Credit Collateral.

                  (h) Any  surplus of the funds held in the L/C Cash  Collateral
Account and  remaining  after payment in full of all of the  Obligations  of the
Borrower  under  this  Agreement  and under any other  Loan  Document  after the
Termination  Date shall be paid to the Borrower or to whomsoever may be lawfully
entitled to receive such surplus.

<PAGE>
                                       52



                                   ARTICLE VII

                                   THE AGENTS


                  SECTION  7.01.  Authorization  and Action.  Each Lender  Party
hereby   appoints  and  authorizes,   with  respect  to  this   Agreement,   the
Administrative  Agent to take such action as agent on its behalf and to exercise
such  powers  under the Loan  Documents  as are  delegated  to them by the terms
hereof,  together with such powers as are reasonably  incidental  thereto. As to
any matters not expressly provided for by the Loan Documents (including, without
limitation,  enforcement  or collection  of, or other actions taken with respect
to, the Notes), the  Administrative  Agent shall not be required to exercise any
discretion  or take any action,  but shall be required to act or to refrain from
acting (and shall be fully  protected  in so acting or  refraining  from acting)
upon the  instructions of the Majority  Lenders and such  instructions  shall be
binding  upon all Lender  Parties and all holders of Notes;  provided,  however,
that the  Administrative  Agent shall not be  required to take any action  which
exposes the  Administrative  Agent to personal liability or which is contrary to
this Agreement or applicable law. Each Agent agrees to give to each Lender Party
prompt  notice of each notice given to it by the Borrower  pursuant to the terms
of this Agreement.

                  SECTION 7.02.  Administrative  Agent's Reliance,  Etc. Neither
the  Administrative  Agent,  nor  any  of its  directors,  officers,  agents  or
employees,  shall be liable for any action taken or omitted to be taken by it or
them under or in connection with any Loan Document,  except for its or their own
gross negligence or willful misconduct.  Without limitation of the generality of
the  foregoing,  each  Agent:  (i) may treat the payee of any Note as the holder
thereof until the  Administrative  Agent  receives and accepts an Assignment and
Acceptance  entered into by the Lender Party that is the payee of such Note,  as
Assignor,  and an Eligible Assignee,  as assignee,  as provided in Section 8.07;
(ii) may  consult  with legal  counsel  (including  counsel  for the  Borrower),
independent public accountants and other experts selected by it and shall not be
liable  for any  action  taken or  omitted  to be  taken in good  faith by it in
accordance with the advice of such counsel,  accountants or experts; (iii) makes
no warranty or  representation  to any Lender Party and shall not be responsible
to any Lender Party for any statements,  warranties or representations  (whether
written or oral) made in or in connection with any Loan Document; (iv) shall not
have any duty to ascertain or to inquire as to the  performance or observance of
any of the terms,  covenants or  conditions  of any Loan Document on the part of
the Borrower or to inspect the property (including the books and records) of the
Borrower;  (v)  shall  not be  responsible  to any  Lender  Party  for  the  due
execution, legality, validity, enforceability, genuineness, sufficiency or value
of any Loan  Document or any other  instrument  or document  furnished  pursuant
hereto;  and (vi)  shall  incur no  liability  under or in  respect  of any Loan
Document by acting upon any notice, consent,  certificate or other instrument or
writing (which may be by telecopier, telegram, cable or telex) believed by it to
be genuine and signed or sent by the proper party or parties.

<PAGE>
                                       53


                  SECTION 7.03.  Chase,  Citibank,  Morgan and Affiliates.  With
respect to their  Commitments,  the Advances made by them and the Note issued to
them,  each of Chase,  Citibank and Morgan shall have the same rights and powers
under the Loan  Documents as any other Lender Party and may exercise the same as
though it were not an Agent;  and the term  "Lender  Party" or "Lender  Parties"
shall, unless otherwise expressly indicated,  include Chase, Citibank and Morgan
in their individual capacities. Chase, Citibank, Morgan and their affiliates may
accept  deposits  from,  lend money to, act as trustee under  indentures of, and
generally  engage  in any  kind  of  business  with,  the  Borrower,  any of its
Subsidiaries  and any Person who may do business  with or own  securities of the
Borrower or any such  Subsidiary,  all as if it were not an Agent under any Loan
Document and without any duty to account therefor to the Lender Parties.

                  SECTION 7.04. Lender Party Credit Decision.  Each Lender Party
acknowledges  that it has,  independently and without reliance upon any Agent or
any other  Lender  Party and based on the  financial  statements  referred to in
Section  4.01  and  such  other  documents  and  information  as it  has  deemed
appropriate,  made its own  credit  analysis  and  decision  to enter  into this
Agreement.  Each Lender Party also acknowledges that it will,  independently and
without  reliance  upon any  Agent or any other  Lender  Party and based on such
documents and information as it shall deem appropriate at the time,  continue to
make its own  credit  decisions  in  taking  or not  taking  action  under  this
Agreement.

                  SECTION  7.05.  Indemnification.  (a)  The  Lenders  agree  to
indemnify  each Agent (to the extent not promptly  reimbursed by the  Borrower),
ratably according to the respective  principal amounts of the Notes then held by
each of them (or if no Notes  are at the time  outstanding  or if any  Notes are
held  by  Persons  which  are  not  Lender  Parties,  ratably  according  to the
respective  amounts  of  their  Commitments),  from  and  against  any  and  all
liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs,  expenses or disbursements of any kind or nature  whatsoever which may be
imposed on,  incurred by, or asserted  against such Agent in any way relating to
or arising out of any Loan Document or any action taken or omitted by such Agent
under any Loan  Document,  provided that no Lender Party shall be liable for any
portion of such liabilities,  obligations,  losses, damages, penalties, actions,
judgments,  suits, costs, expenses or disbursements  resulting from such Agent's
gross  negligence or willful  misconduct.  Without  limitation of the foregoing,
each Lender Party agrees to reimburse  each Agent  promptly  upon demand for its
ratable share of any out-of-pocket expenses (including counsel fees) incurred by

<PAGE>
                                       54


such  Agent  in   connection   with  the   preparation,   execution,   delivery,
administration,   modification,   amendment  or  enforcement   (whether  through
negotiations,  legal proceedings or otherwise) of, or legal advice in respect of
rights or  responsibilities  under,  any Loan Document,  to the extent that such
Agent is not promptly reimbursed for such expenses by the Borrower. For purposes
of this Section 7.05(a),  the Lenders Parties'  respective ratable shares of any
amount  shall  be  determined,  at any  time,  according  to the  sum of (a) the
aggregate principal amount of the Advances outstanding at such time and owing to
the  respective  Lender  Parties,  (b) their  respective  pro rata shares of the
aggregate  Available  Amount of all Letters of Credit  outstanding at such time,
and (c) their respective  Unused Revolving Credit  Commitments at such time. The
failure of any Lender party to reimburse any Agent  promptly upon demand for its
ratable  share of any amount  required to be paid by the Lender  Parties to such
Agent as  provided  herein  shall  not  relieve  any other  Lender  Party of its
obligation  hereunder  to  reimburse  such Agent for its  ratable  share of such
amount,  but no Lender Party shall be  responsible  for the failure of any other
Lender Party to reimburse such Agent for such other Lender Party's ratable share
of such amount.  Without prejudice to the survival of any other agreement of any
Lender Party  hereunder,  the  agreement  and  obligations  of each Lender Party
contained  in  this  Section  7.05(a)  shall  survive  the  payment  in  full of
principal,  interest and all other amounts payable hereunder and under the other
Loan Documents.

                  (b) Each  Lender  Party  severally  agrees to  indemnify  each
Issuing Bank (to the extent not promptly reimbursed by the Borrower) ratably (as
determined  below),  from  and  against  any and all  liabilities,  obligations,
losses,  damages,  penalties,  actions,  judgments,  suits,  costs,  expenses or
disbursements of any kind or nature  whatsoever that may be imposed on, incurred
by, or asserted  against such Issuing Bank in any way relating to or arising out
of any Loan  Document or any action  taken or omitted by such Issuing Bank under
any Loan  Documents  provided,  that no Lender  Party  shall be  liable  for any
portion of such liabilities,  obligations,  losses, damages, penalties, actions,
judgments,  suits, costs, expenses or disbursements  resulting from such Issuing
Bank's  gross  negligence  or  willful  misconduct.  Without  limitation  of the
foregoing, each Lender Party agrees to reimburse such Issuing Bank promptly upon
demand for its ratable share of any costs and expenses  (including counsel fees)
incurred by such Issuing Bank in  connection  with the  preparation,  execution,
delivery,  administration,  modification,  amendment,  or  enforcement  (whether
through  negotiations,  legal  proceedings or otherwise) of , or legal advice in
respect of rights or  responsibilities  under, any Loan Document,  to the extent
that such  Issuing  Bank is not  promptly  reimbursed  for such  expenses by the
Borrower.  For purposes of this Section 7.05(b), the Lenders Parties' respective
ratable shares of any amount shall be determined,  at any time, according to the
sum of (a) the aggregate  principal  amount of the Advances  outstanding at such
time and owing to the respective  Lender Parties,  (b) their respective pro rata
shares of the aggregate Available Amount of all Letters of Credit outstanding at

<PAGE>
                                       55


such time, and (c) their respective Unused Revolving Credit  Commitments at such
time.  The failure of any Lender party to reimburse  such Issuing Bank  promptly
upon  demand  for its  ratable  share of any amount  required  to be paid by the
Lender  Parties to such  Issuing  Bank as provided  herein shall not relieve any
other Lender Party of its  obligation  hereunder to reimburse  such Issuing Bank
for its ratable share of such amount,  but no Lender Party shall be  responsible
for the failure of any other  Lender  Party to  reimburse  such Issuing Bank for
such other Lender Party's ratable share of such amount. Without prejudice to the
survival of any other agreement of any Lender Party hereunder, the agreement and
obligations of each Lender Party contained in this Section 7.05(b) shall survive
the  payment  in full of  principal,  interest  and all  other  amounts  payable
hereunder and under the other Loan Documents.

                  SECTION 7.06.  Successor Agents. The Administrative  Agent may
resign at any time by giving  written  notice  thereof to the Lender Parties and
the  Borrower  and may be  removed  at any  time  with or  without  cause by the
Majority  Lenders.  Upon any such  resignation or removal,  the Majority Lenders
shall, subject to the approval of the Borrower if no Default has occurred and is
continuing on such date (which approval will not be unreasonably withheld), have
the right to appoint a successor  Administrative  Agent. If within 30 days after
the  retiring  Administrative  Agent's  giving of notice of  resignation  or the
Majority  Lenders'  removal of the retiring  Administrative  Agent, no successor
Administrative  Agent shall have (A) been so appointed by the Majority  Lenders,
(B)  if  required,  been  approved  by  the  Borrower,  and  (C)  accepted  such
appointment, then the retiring Administrative Agent may, on behalf of the Lender
Parties,  appoint a successor  Administrative Agent, which shall be a commercial
bank  organized  under the laws of the United  States of America or of any State
thereof and having a combined capital and surplus of at least $50,000,000.  Upon
the  acceptance  of any  appointment  as  Administrative  Agent  hereunder  by a
successor  Administrative  Agent,  such  successor  Administrative  Agent  shall
thereupon succeed to and become vested with all the rights,  powers,  privileges
and duties of the retiring Administrative Agent, and the retiring Administrative
Agent  shall be  discharged  from its  duties  and  obligations  under  the Loan
Documents.  After any retiring  Administrative  Agent's  resignation  or removal
hereunder as  Administrative  Agent,  the  provisions  of this Article VII shall
inure to its benefit as to any actions  taken or omitted to be taken by it while
it was Administrative Agent under this Agreement.

                  SECTION  7.07.  Syndication  Agent,  Documentation  Agent  and
Arranger.  The Syndication Agent, the Documentation Agent and the Arranger shall
have no duties or  obligations  under this Agreement or the other Loan Documents
in their  respective  capacities as Syndication  Agent,  Documentation  Agent or
Arranger, as the case may be.


                                  ARTICLE VIII

                                  MISCELLANEOUS


                  SECTION 8.01.  Amendments,  Etc. No amendment or waiver of any
provision of this  Agreement or the Notes,  nor consent to any  departure by the
Borrower therefrom,  shall in any event be effective unless the same shall be in
writing  and signed by the  Majority  Lenders,  and then such  waiver or consent
shall be effective  only in the specific  instance and for the specific  purpose
for which,  given;  provided,  however,  that no  amendment,  waiver or consent,
shall,  unless in writing  and signed by all the Lender  Parties,  do any of the
following:  (a)  waive any of the  conditions  specified  in  Article  III,  (b)
increase the Commitments of the Lenders or subject the Lenders to any additional
obligations,  (c) reduce the principal of, or interest on, the Notes or any fees
or other amounts payable hereunder,  (d) postpone any date fixed for any payment

<PAGE>
                                       56


of principal of, or interest on, the Notes or any fees or other amounts  payable
hereunder,  (e) change the  percentage  of the  Commitments  or of the aggregate
unpaid principal  amount of the Notes, or the number of Lenders,  which shall be
required  for the  Lenders  or any of them to take any action  hereunder  or (f)
amend this Section  8.01;  and provided  further  that no  amendment,  waiver or
consent shall,  unless in writing and signed by each Issuing Bank in addition to
the Lenders  required above to take such action,  affect the rights or duties of
the Issuing Banks under this Agreement;  and provided further that no amendment,
waiver or consent shall,  unless in writing and signed by each Agent in addition
to the Lenders  required above to take such action,  affect the rights or duties
of such Agent under this Agreement or any Notes.

                  SECTION   8.02.   Notices,   Etc.   All   notices   and  other
communications provided for hereunder shall be in writing (including telecopier,
telegraphic, telex or cable communication) and mailed, telecopied,  telegraphed,
telexed,  cabled or delivered,  if to the  Borrower,  at its address at Alvarado
Square,  Mail Stop 2704,  Albuquerque,  New Mexico 87158,  Attention:  Corporate
Treasury  Management;  if to any Bank, at its Domestic  Lending Office specified
opposite  its name on Schedule I hereto;  if to any other Lender  Party,  at its
Domestic Lending Office  specified in the Assignment and Acceptance  pursuant to
which it became a Lender Party;  if to Chase,  as  Administrative  Agent, at its
address at 270 Park  Avenue,  New York,  New York  10017,  Attention:  Utilities
Group; if to Citibank,  as Syndication Agent, at its address at 399 Park Avenue,
New York,  NY 10043,  Attention:  Utilities  Department;  and if to  Morgan,  as
Documentation  Agent,  at its  address at 60 Wall  Street,  New York,  NY 10260,
Attention:  Kathy  Sayko-Yanes;  or, as to each party,  at such other address as
shall be  designated  by such  party in a written  notice to the other  parties.
Unless   otherwise   specifically   provided   herein,   all  such  notices  and
communications shall, when mailed, telecopied,  telegraphed,  telexed or cabled,
be effective when deposited in the mails, telecopied, delivered to the telegraph
company,  confirmed  by telex  answerback  or  delivered  to the cable  company,
respectively, except that notices and communications to the Administrative Agent
pursuant  to  Article II or VII shall not be  effective  until  received  by the
Administrative Agent.


<PAGE>
                                       57



                  SECTION 8.03. No Waiver;  Remedies.  No failure on the part of
any Lender Party or any Agent to exercise, and no delay in exercising, any right
under any Loan Document shall operate as a waiver thereof;  nor shall any single
or partial  exercise of any such right  preclude  any other or further  exercise
thereof or the exercise of any other right.  The  remedies  herein  provided are
cumulative and not exclusive of any remedies provided by law.

                  SECTION  8.04.  Costs,  Expenses  and Taxes.  (a) The Borrower
agrees to pay on demand (i) all costs and  out-of-pocket  expenses of the Agents
in  connection  with  the   syndication,   preparation,   execution,   delivery,
administration,  modification  and amendment of the Loan Documents and the other
documents  to  be  delivered  under  the  Loan  Documents,   including,  without
limitation,  (A)  all  due  diligence,  transportation,  computer,  duplication,
appraisal, audit, insurance,  consultant,  search, filing and recording fees and
expenses and (B) the reasonable fees and  out-of-pocket  expenses of counsel for
the Agents with  respect  thereto and with  respect to advising the Agents as to
their rights and responsibilities, or the perfection, protection or preservation
of  rights  or  interests  under  the  Loan  Documents,   and  with  respect  to
negotiations  with the Borrower  regarding any Default or event or  circumstance
that may give rise to any Default, and (ii) all costs and expenses of the Agents
and the  Lender  Parties,  if any  (including,  without  limitation,  reasonable
counsel fees and expenses, which may include, without limitation, the reasonable
allocated costs and expenses of in-house counsel;  provided,  however,  that the
fees of  in-house  counsel  shall not be  reimbursable  to the  extent  they are
duplicative or redundant of those of outside  counsel),  in connection  with the
enforcement  (whether through  negotiations,  legal proceedings or otherwise) of
the Loan  Documents  and the  other  documents  to be  delivered  under the Loan
Documents,  including, without limitation,  reasonable counsel fees and expenses
in connection with the enforcement of rights under this Section 8.04(a).

                  (b) If any  payment  of  principal  of, or  Rollover  of,  any
Eurodollar Rate Advance is made other than on the last day of an Interest Period
relating  to such  Advance,  as a result of a payment or  Rollover  pursuant  to
Section 2.12 or  acceleration  of the maturity of the Notes  pursuant to Section
6.01 or for any other  reason,  the Borrower  shall,  upon demand by such Lender
Party  (with a copy of such  demand  to the  Administrative  Agent),  pay to the
Administrative  Agent for the account of such Lender Party any amounts  required
to compensate  such Lender Party for any  additional  losses,  costs or expenses
which  it may  reasonably  incur  as a  result  of  such  payment  or  Rollover,
including, without limitation, any loss (including loss of anticipated profits),
costs or  expense  incurred  by reason of the  liquidation  or  reemployment  of
deposits  or other  funds  acquired  by such  lender  to fund or  maintain  such
Advance.

<PAGE>
                                       58


                  SECTION 8.05.  Right of Set-off.  Upon (i) the  occurrence and
during  the  continuance  of any  Event of  Default  and (ii) the  making of the
request or the  granting of the consent by the  Majority  Lenders  specified  by
Section 6.01 to authorize the Administrative  Agent to declare the Notes due and
payable  pursuant to the provisions of Section 6.01, each Lender Party is hereby
authorized at any time and from time to time, to the fullest extent permitted by
law, to set off and apply any and all  deposits  (general  or  special,  time or
demand,  provisional  or final) at any time held and other  indebtedness  at any
time  owing by such  Lender  Party to or for the  credit or the  account  of the
Borrower against any and all of the obligations of the Borrower now or hereafter
existing  under any Loan  Document,  whether or not such Lender Party shall have
made any demand under this Agreement or such Note and although such  obligations
may be unmatured. Each Lender Party agrees promptly to notify the Borrower after
any such set-off and  application  made by such Lender Party,  provided that the
failure to give such notice  shall not affect the  validity of such  set-off and
application.  The rights of each Lender Party under this Section are in addition
to other rights and remedies  (including,  without  limitation,  other rights of
set-off) which such Lender Party may have.

                  SECTION 8.06.  Binding  Effect.  This  Agreement  shall become
effective  when it shall have been  executed by the  Borrower and the Agents and
when the Administrative Agent shall have been notified by each Lender Party that
such Lender Party has executed it and thereafter shall be binding upon and inure
to the  benefit  of the  Borrower,  each Agent and each  Lender  Party and their
respective  successors and assigns,  except that the Borrower shall not have the
right to assign its rights  hereunder or any interest  herein  without the prior
written consent of the Lender Parties.

                  SECTION 8.07. Assignments and Participations. (a) Each Lender,
with the  consent  of the  Borrower  (which  consent  shall not be  unreasonably
withheld),  may assign to one or more Eligible Assignees all or a portion of its
rights and obligations under this Agreement (including,  without limitation, all
or a portion of its Commitments,  the Advances owing to it and the Note or Notes
held by it):  provided,  however,  that (i) each such  assignment  shall be of a
constant, and not a varying, percentage of all rights and obligations in respect
of the  Facilities  under  this  Agreement,  (ii)  except  in the case of (A) an
assignment to a Person that immediately prior to such assignment was a Lender or
(B) an  assignment  of all of the  remaining  rights  and  obligations  of  such
assigning  Lender  under this  Agreement,  the amount of the  Commitment  of the
assigning  Lender  Party  being  assigned   pursuant  to  each  such  assignment
(determined as of the date of the Assignment and Acceptance with respect to such
assignment) shall in no event be less than $5,000,000,  and shall be an integral
multiple thereof,  (iii) the assigning Lender shall,  immediately following such
assignment  (unless such assignment is of all the rights and obligations of such
assigning  Lender under this Agreement,  or is made  concurrently,  with another
such assignment or other such assignments  that in the aggregate  constitute all
of the rights and  obligations of such assigning  Lender under this  Agreement),

<PAGE>
                                       59


retain a Commitment of at least $5,000,000 under this Agreement,  (iv) each such
assignment  shall be to an Eligible  Assignee,  and (v) the parties to each such
assignment  shall  execute  and  deliver to the  Administrative  Agent,  for its
acceptance and recording in the Register, an Assignment and Acceptance, together
with  any  Note  or  Notes  subject  to such  assignment  and a  processing  and
recordation fee (the "Recordation Fee") of $2,500;  and, provided further,  that
no consent of the Borrower  shall be required for an  assignment  to any Bank or
any Affiliate of any Bank.

                  (b) Upon such execution,  delivery,  acceptance and recording,
from and after the effective date specified in each  Assignment and  Acceptance,
(x) the  assignee  thereunder  shall be a party  hereto  and, to the extent that
rights and  obligations  hereunder  have been  assigned  to it  pursuant to such
Assignment  and  Acceptance,  have the  rights  and  obligations  of a Lender or
Issuing Bank,  as the case may be,  hereunder and (y) the Lender or Issuing Bank
assignor  thereunder shall, to the extent that rights and obligations  hereunder
have been assigned by it pursuant to such Assignment and Acceptance,  relinquish
its rights and be released from its  obligations  under this Agreement  (and, in
the case of an Assignment and Acceptance  covering all of the remaining  portion
of an assigning  Lender's or Issuing  Bank's rights and  obligations  under this
Agreement, such Lender or Issuing Bank shall cease to be a party hereto).

                  (c) By executing and delivering an Assignment and  Acceptance,
the Lender Party assignor  thereunder and the assignee thereunder confirm to and
agree with each other and the other parties hereto as follows: (i) other than as
provided in such Assignment and Acceptance, such assigning Lender Party makes no
representation  or warranty  and assumes no  responsibility  with respect to any
statements,  warranties or  representations  made in or in connection  with this
Agreement or the execution,  legality,  validity,  enforceability,  genuineness,
sufficiency  or value of this  Agreement  or any other  instrument  or  document
furnished   pursuant   hereto;   (ii)  such  assigning  Lender  Party  makes  no
representation  or warranty  and assumes no  responsibility  with respect to the
financial  condition of the Borrower or the  performance  or  observance  by the
Borrower of any of its obligations  under this Agreement or any other instrument
or document furnished pursuant hereto;  (iii) such assignee confirms that it has
received  a copy  of this  Agreement,  together  with  copies  of the  financial
statements  referred to in Section 4.01 and such other documents and information
as it has deemed  appropriate  to make its own credit  analysis  and decision to
enter  into  such   Assignment   and   Acceptance;   (iv)  such  assignee  will,
independently  and without reliance upon any Agent,  such assigning Lender Party
or any other  Lender Party and based on such  documents  and  information  as it
shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under this  Agreement;  (v) such  assignee  confirms
that it is an Eligible Assignee;  (vi) such assignee appoints and authorizes the
Agents to take such  action as agent on its behalf and to  exercise  such powers
under  this  Agreement  as are  delegated  to each  Agent by the  terms  hereof,
together with such powers as are reasonably  incidental thereto;  and (vii) such
assignee  agrees that it will perform in accordance  with their terms all of the
obligations which by the terms of this Agreement are required to be performed by
it as a Lender or Issuing Bank, as the case may be.

<PAGE>
                                       60


                  (d) The  Administrative  Agent  shall  maintain at its address
referred to in Section 8.02 a copy of each  Assignment and Acceptance  delivered
to and  accepted  by it and a  register  for the  recordation  of the  names and
addresses of the Lender Parties and the  Commitment of, and principal  amount of
the Advances owing to, each Lender Party from time to time (the "Register"). The
entries in the Register shall be conclusive and binding for all purposes, absent
manifest  error,  and the Borrower,  the Agents and the Lender Parties may treat
each Person whose name is recorded in the  Register as a Lender Party  hereunder
for all  purposes  of this  Agreement.  The  Register  shall  be  available  for
inspection by the Borrower or any Lender Party at any  reasonable  time and from
time to time upon reasonable prior notice.

                  (e)  Within  five  Business  Days  after  its  receipt  of  an
Assignment and Acceptance  executed by an assigning Lender Party and an assignee
representing  that it is an Eligible  Assignee,  together with any Note or Notes
subject to such assignment,  the Administrative  Agent shall, if such Assignment
and Acceptance has been completed and is in substantially  the form of Exhibit C
hereto,  (i) accept such Assignment and Acceptance,  (ii) record the information
contained  therein in the Register and (iii) give prompt  notice  thereof to the
Borrower. Within five Business Days of its receipt of such notice, the Borrower,
at its own expense,  shall  execute and deliver to the  Administrative  Agent in
exchange  for the  surrendered  Note or  Notes a new  Note to the  order of such
Eligible Assignee in an amount equal to the Revolving Credit Commitment  assumed
by it pursuant to such  Assignment and Acceptance  and, if the assigning  Lender
Party has retained a Revolving Credit  Commitment  hereunder,  a new Note to the
order of the assigning  Lender Party in an amount equal to the Revolving  Credit
Commitment  retained  by it  hereunder.  Such new  Note or Notes  shall be in an
aggregate  principal  amount  equal to the  aggregate  principal  amount of such
surrendered Note or Notes,  shall be dated the effective date of such Assignment
and Acceptance  and shall  otherwise be in  substantially  the form of Exhibit A
hereto.

                  (f) Each  Issuing  Bank may with the  consent of the  Borrower
(such consent not to be  unreasonably  withheld)  assign to one or more Eligible
Assignee  all or a portion  of its  rights  and  obligations  under the  undrawn
portion of its Letter of Credit Commitment at any time; provided,  however, that
(i) except in the case of an  assignment to a Person that  immediately  prior to
such assignment was an Issuing Bank or an assignment of all of an Issuing Bank's
rights and obligations under this Agreement,  the amount of the Letter of Credit
Commitment of the assigning  Issuing Bank being  assigned  pursuant to each such
assignment  (determined as of the date of the  Assignment  and  Acceptance  with
respect to such assignment)  shall in no event be less than $5,000,000 and shall
be in an  integral  multiple of  $1,000,000  in excess  thereof,  (ii) each such
assignment  shall be to an Eligible  Assignee and (iii) the parties to each such
assignment  shall  execute  and  deliver to the Agent,  for its  acceptance  and
recording  in the  Register,  an  Assignment  and  Acceptance,  together  with a
processing and recordation fee of $2,500.

<PAGE>
                                       61


                  (g) Each Lender Party may sell  participations  to one or more
banks or other entities in or to all or a portion of its rights and  obligations
under this Agreement  (including,  without  limitation,  all or a portion of its
Commitments,  the  Advances  owing  to it and  the  Note or  Notes  held by it);
provided, however, that (i) such Lender Party's obligations under this Agreement
(including,  without limitation, its Commitment to the Borrower hereunder) shall
remain unchanged,  (ii) such Lender Party shall remain solely responsible to the
other parties hereto for the performance of such obligations,  (iii) such Lender
Party  shall  remain  the  holder  of any  such  Note for all  purposes  of this
Agreement,  and (iv) the Borrower, the Agents and the other Lender Parties shall
continue to deal solely and directly with such Lender Party in  connection  with
such Lender Party's rights and obligations  under this  Agreement;  and provided
further that no Lender Party shall give any  participant  any right to determine
or  influence  such  Lender  Party's  vote  pursuant  to  Section  8.01  of this
Agreement,  except with respect to such matters as are specified in clauses (c),
(d) and (f) of such Section 8.01.

                  (h) Each Lender  Party  acknowledges  that it has  obligations
regarding   preservation  of  the  confidentiality  of  non-public   information
regarding the Borrower. Each Lender Party may, in connection with any assignment
or  participation  or  proposed  assignment  or  participation  pursuant to this
Section 8.07,  disclose to the assignee or participant  or proposed  assignee or
participant,  any information  relating to the Borrower furnished to such Lender
Party  by or on  behalf  of the  Borrower;  provided  that,  prior  to are  such
disclosure,  the assignee or  participant  or proposed  assignee or  participant
shall agree to preserve  the  confidentiality  of any  confidential  information
relating to the Borrower received by it from such Lender Party.

                  (i)  Notwithstanding  any  other  provision  set forth in this
Agreement, any Lender Party may at any time create a security interest in all or
any portion of its rights under this Agreement  (including,  without limitation,
the  Advances  owing  to it and the  Note or  Notes  held by it) in favor of any
Federal  Reserve Bank in accordance  with Regulation A of the Board of Governors
of the Federal Reserve System.

                  SECTION  8.08.  Governing  Law.  This  Agreement and the Notes
shall be governed by, and construed in accordance with, the laws of the State of
New York.

                  SECTION 8.09. Execution in Counterparts. This Agreement may be
executed  in any  number of  counterparts  and by  different  parties  hereto in
separate  counterparts,  each of which when so executed shall be deemed to be an
original  and all of which  taken  together  shall  constitute  one and the same
agreement.

<PAGE>
                                       62


                  SECTION 8.10. Waiver of Jury Trial. Each of the Borrower,  the
Agents,  and the Lenders hereby irrevocably waives all right to trial by jury in
any action,  proceeding  or  counterclaim  (whether  based on contract,  tort or
otherwise) arising out of or relating to this Agreement or the Notes.
























<PAGE>
                                       63




NYDOCS03/70502 3
                                    Borrower

                                    PUBLIC SERVICE COMPANY
                                    OF NEW MEXICO


                                    By ____________________________
                                        Name:
                                        Title:




















<PAGE>
                                       64




NYDOCS03/70502 3
                                     Agents

                                     THE CHASE MANHATTAN BANK, as Administrative
                                     Agent and as Lender


                                     By ____________________________
                                         Name:
                                         Title:


                                     CHASE SECURITIES, INC., as Arranger and as
                                     Lender


                                     By ____________________________
                                         Name:
                                         Title:



                                     CITIBANK, N.A., as Syndication Agent and as
                                     Lender


                                     By ____________________________
                                         Name:
                                         Title:


                                     MORGAN GUARANTY TRUST COMPANY OF NEW YORK,
                                     as Documentation Agent and as Lender


                                     By ____________________________
                                         Name:
                                         Title:


<PAGE>
                                       65




                                  Other Lenders

                                  BANK OF AMERICA NATIONAL TRUST AND SAVINGS
                                  ASSOCIATION


                                  By ____________________________
                                      Name:
                                      Title:


                                  CIBC OPPENHEIMER


                                  By ____________________________
                                      Name:
                                      Title:


                                  ABN AMRO BANK N.V.


                                  By ____________________________
                                      Name:
                                      Title:

                                  FIRST SECURITY BANK OF NEW MEXICO, N.A.


                                  By ____________________________
                                      Name:
                                      Title:



<PAGE>
                                       66




NYDOCS03/70502 3


                                   LONG TERM CREDIT BANK OF JAPAN LIMITED
                                   LOS ANGELES AGENCY


                                   By ____________________________
                                       Name:
                                       Title:


                                   MELLON BANK, N.A.


                                   By ____________________________
                                       Name:
                                       Title:


                                   NORWEST BANK NEW MEXICO, N.A.


                                   By ____________________________
                                       Name:
                                       Title:





NYDOCS03/70502 3

<PAGE>



                                                                    EXHIBIT 1 to
                                                           Consent and Directive

                           REFUNDING AGREEMENT NO. 8A

                  REFUNDING AGREEMENT NO. 8A dated as of December 23, 1997 (this
"Refunding  Agreement")  between  PUBLIC  SERVICE  COMPANY OF NEW MEXICO,  a New
Mexico corporation ("PNM"),  the corporation  identified on Schedule I hereto as
the Owner  Participant  (the "Owner  Participant"),  STATE STREET BANK AND TRUST
COMPANY, a Massachusetts  trust company ("State Street"),  not in its individual
capacity  but solely as owner  trustee  (the  "Owner  Trustee")  under the Trust
Agreement  dated as of August 12,  1986 (the "Trust  Agreement")  with the Owner
Participant,  THE CHASE MANHATTAN BANK, a New York banking corporation (formerly
known as "Chemical Bank") ("Chase"),  not in its individual capacity, but solely
as lease indenture trustee (the "Indenture  Trustee") under the Trust Indenture,
Mortgage, Security Agreement and Assignment of Rents dated as of August 12, 1986
(as heretofore  supplemented,  the "Lease Indenture") with the Owner Trustee and
FIRST PV FUNDING CORPORATION, a Delaware corporation ("Funding Corporation").


                                 R E C I T A L S


                  A.  PNM,  the  Owner  Participant,   the  Owner  Trustee,  the
Indenture  Trustee and Funding  Corporation  are party to (i) the  Participation
Agreement dated as of August 12, 1986 (as heretofore amended, the "Participation
Agreement")  and (ii)  Refunding  Agreement No. 8 dated as of September 27, 1996
(the "1996 Refunding Agreement"). State Street is the successor as owner trustee
to The First  National  Bank of Boston  ("FNB"),  the owner  trustee  originally
designated in and party to the Participation Agreement and the other Transaction
Documents  (such term and the other  capitalized  terms  used in this  Refunding
Agreement  without  definition  being defined as provided in Section 1 below) to
which FNB was party in its capacity as owner trustee.

                  B.  Funding  Corporation,  PNM and  Chase are  parties  to the
Collateral  Trust  Indenture  dated  as of  December  16,  1985  (as  heretofore
supplemented and amended, the "Collateral Trust Indenture").

                  C. Pursuant to the 1996 Refunding Agreement, the Owner Trustee
(i)  effected  a partial  prepayment  of  $1,172,000  in  respect  of the 10.15%
Non-Recourse  Promissory Note,  Fixed Rate Series (Due January 15, 2016),  dated
November 25, 1986 (the "Subject Note"),  theretofore issued by the Owner Trustee
and (ii) issued its  Non-Recourse  Promissory  Note, 1996 Refunding  Series (Due
January 15, 2016),  issued as of July 15, 1996 (the "PNM Note"), in the original
principal  amount of  $1,172,000  to PNM.  Pursuant to Section 8(a) hereof,  the
Owner  Trustee  has  determined  to  effect  a  further  partial  prepayment  of
$28,900,000 of the Subject Note (the "Prepayment") on the Closing Date.

<PAGE>

                  D.  Funding  Corporation  has  determined  to effect a partial
optional  redemption of the securities  outstanding  under the Collateral  Trust
Indenture (the "Redemption").  Funding Corporation intends to redeem $28,316,000
of its 10.15% Lease  Obligation  Bonds Series  1986B,  Due January 15, 2016 (the
"Series B Bonds").

                  E. The  Redemption  will occur on January  20,  1998;  on such
date, the applicable premium is 5.684% with respect to the $28,316,000 of Series
B Bonds being redeemed on such date.  The Prepayment  will occur on December 30,
1997;  on such  date the  applicable  premium  is  6.090%  with  respect  to the
$28,900,000  of the Subject Note being  redeemed.  The parties have agreed that,
anything in the Subject Note to the contrary not  withstanding,  the  prepayment
price  applicable to the  Prepayment  shall be 105.684% of the principal  amount
being prepaid together with interest  accrued to the Closing Date,  except that,
with respect to $584,000 of such principal amount, the prepayment price shall be
100.000% of such amount together with interest accrued to the Closing Date.

                  F. The Owner Trustee shall obtain the funds  necessary for the
Prepayment (i) by issuing and selling to PNM an Additional  Note under the Lease
Indenture (the "Issuance and Sale") in the amount and on the terms  specified in
the form of note  included  as part of  Exhibit A hereto  (the  "1997  Refunding
Note")  and (ii) from the  payment  by PNM of  Supplemental  Rent  (pursuant  to
Section 3(b)(ii) of the Facility Lease) to the Owner Trustee in the amount equal
to the prepayment premium (the prepayment price less principal being prepaid and
accrued  interest  thereon) to be paid in connection  with the  Prepayment.  The
purchase price for the 1997 Refunding Note (the "Purchase Price") will equal the
principal amount thereof plus interest accrued thereon from July 15, 1997 to the
Closing Date.

                  G. On January 15, 1998,  a sinking fund payment of  $3,089,000
is due in  respect  of the  Series  B  Bonds,  $584,000  of  which,  but for the
Prepayment  and the  Issuance  and Sale,  would have been funded from  scheduled
principal  amortization  in respect of the  $28,900,000  portion of the  Subject
Note. Such $584,000  together with accrued  interest (but without  premium) will
instead  be paid  from  the  proceeds  of the  Purchase  Price  held by Chase as
Collateral  Trust Trustee.  The Collateral  Trust Trustee,  on behalf of Funding
Corporation, gave notice of the sinking fund redemption on December 15, 1997.

                  H. Funding  Corporation  shall obtain the funds  necessary for
the  Redemption  from (a) the  proceeds of the  prepayment  price of the further
portion of the Subject  Note being  prepaid and (b) amounts paid by PNM pursuant
to Section 4(c) of this Agreement.

                  I. The Owner Trustee,  as directed and authorized by the Owner
Participant,  wishes  to cause  the  Issuance  and Sale in order to  effect  the
Prepayment  and to  provide  a  portion  of  the  funds  needed  to  effect  the
Redemption.

                  J. Section  3.5(1)(i)  of the Lease  Indenture  provides  that
Additional  Notes may be issued for the  purpose  of  refunding  any  previously
issued  series of Notes,  in whole or in part.  Section  10.1(viii) of the Lease
Indenture provides that the Indenture Trustee and the Owner Trustee may, without
the  consent  of the  Holders  of  Notes  Outstanding,  execute  a  supplemental
indenture  to evidence  the  issuance of and to provide the terms of  Additional
Notes to be issued  under  the  Lease  Indenture  in  accordance  with the terms
thereof.  Subject to the  conditions  set forth  herein,  the Owner  Trustee and
Indenture Trustee intend to execute a 1997  Supplemental  Indenture to the Lease
Indenture, dated as of December 23, 1997 (the "1997 Note Supplement"), providing
for the  issuance  under  the  Lease  Indenture  of the 1997  Refunding  Note as
contemplated in the 1997 Note  Supplement.  The form of the 1997 Note Supplement
is attached as Exhibit A hereto.

                                       2
<PAGE>


                  K. Pursuant to the Consent described in Schedule I hereto (the
"Consent"),  the Owner  Participant  has consented to the  acquisition by PNM of
Notes,  and by executing this Agreement is willing to consent to the acquisition
by PNM of the 1997 Refunding Note on the terms and conditions set forth herein.

                  L. Since the 1997  Refunding  Note taken together with the PNM
Note and the unpaid  portion of the Subject  Note (as  reflected  in the Allonge
hereinbelow  described) exactly  corresponds (as to interest rate,  maturity and
principal  amortization)  to the  Subject  Note  without  giving  effect  to the
Prepayment  (as  herein  defined)  and the  Prepayment  (as  defined in the 1996
Refunding  Agreement),  PNM  and  the  Owner  Participant  have  agreed  that no
adjustments  pursuant  to  Section  3(e)  of the  Lease  will  be  necessary  in
connection with the Prepayment and/or the issuance of the 1997 Refunding Note.

                  NOW, THEREFORE,  in consideration of the premises and of other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

                  SECTION 1.  Definitions.

                  (a) For purposes hereof, capitalized terms used herein and not
otherwise defined shall have the respective  meanings assigned to such terms set
forth in Appendix A to the  Participation  Agreement or in the Collateral  Trust
Indenture, as the case may be.

                  (b) "Closing Date" means December 30, 1997.

                  SECTION 2.  Agreements of Funding Corporation.

                  (a) On the Closing  Date,  Funding  Corporation  shall issue a
notice of  redemption to the  Collateral  Trust Trustee in the form of Exhibit B
hereto (the "Notice of Redemption")  with respect to the optional  redemption by
it of $28,316,000 of Series B Bonds  (collectively,  the "Subject  Bonds").  The
redemption  date  specified in the Notice of Redemption is January 20, 1998 (the
"Redemption Date").

                  (b) Promptly  following the  Redemption,  Funding  Corporation
will  deliver  to the  Collateral  Trust  Trustee  a Company  Request  under the
Collateral  Trust Indenture to effect  adjustments to the Sinking Fund schedules
applicable to the Bonds not redeemed as part of the Redemption.


                                       3
<PAGE>


                  SECTION 3.  Agreements of Owner Trustee.

                  (a)  On the Closing Date, the Owner Trustee will:

                  (i)  execute and deliver the 1997 Note Supplement;

                  (ii) execute and deliver the 1997 Refunding Note;

                  (iii) execute and deliver a further allonge (the "Allonge") to
         the Subject Note in the form of Exhibit C hereto;

                  (iv) as  required  by Section  3.5(4)(b)  and (d) of the Lease
         Indenture, execute and deliver a certificate, request and authorization
         in the form of Exhibit D hereto (the "Owner Trustee Instrument");

                  (v) cause to be  delivered  an opinion  of its  counsel in the
         form of Exhibit E.1 hereto; and

                  (vi) make (solely from the proceeds of the Purchase  Price and
         the payment of  Supplemental  Rent pursuant to Section 4(c) hereof) the
         Prepayment   as  follows:   principal   of   $28,900,000,   premium  of
         $1,609,481.44  (calculated at 105.684% on principal of $28,316,000) and
         accrued interest through the Closing Date of $1,344,452.08 (aggregating
         $31,853,933.52).

                  (b) On the  Closing  Date,  the  relevant  provisions  of this
Refunding  Agreement  shall  constitute  notice to the Indenture  Trustee of the
Prepayment.  The  principal  portion of the  Purchase  Price (the  "Amount to be
Prepaid"  set forth in  Schedule  I hereto)  shall be  applied  to prepay on the
Closing  Date the  remaining  installments  of  principal of the Subject Note as
follows:  the "principal  amount  payable" on each "payment  date"  specified on
Schedule  1 to the  Subject  Note  shall be  prepaid  by an amount  equal to the
"principal  amount  payable"  for such date set forth in  Schedule 1 to the 1997
Refunding Note. Annexed as Schedule 1 to the Allonge is the replacement schedule
to the Subject Note which reflects the application of the proceeds of Prepayment
to the remaining installments of the Subject Note. For each date, the sum of (i)
the "principal  amount  payable" set forth on Schedule 1 to the Allonge for such
date and (ii) the "principal amount payable" set forth on Schedule 1 to the 1997
Refunding Note for such date equals the "principal amount payable" for such date
set forth on  Schedule  1 to the  Subject  Note  (without  giving  effect to the
Prepayment or the Allonge).

                  SECTION 4.  Agreements of PNM.

                  (a) On the Closing Date,  PNM shall acquire the 1997 Refunding
Note for an amount equal to the Purchase Price. The Purchase Price shall be paid
by wire  transfer of  immediately  available  funds to an account at Chase to be
designated  by Chase on the day  immediately  preceding  the  Closing  Date (the
"Account").


                                       4
<PAGE>

                  (b) On the Closing Date,  PNM shall pay an amount equal to the
amount  specified  in item 7 on  Schedule  I,  such  payment  to be made for the
benefit of the Owner Trustee as Supplemental  Rent under Section 3(b)(ii) of the
Facility  Lease.  Such  payment  shall be made by wire  transfer of  immediately
available funds to the Account.

                  (c) On the Closing Date,  PNM shall pay to the Account for the
benefit of Funding  Corporation  $162,140.61,  of which  $122,222.92  is accrued
interest  from  December  31,  1997  through  January  15,  1998 on  $28,900,000
principal  amount of  Subject  Bonds and  $39,917.69  is accrued  interest  from
January 16, 1998 through the Redemption Date on $28,316,000  principal amount of
Subject Bonds which will be  sufficient  to pay any remaining  moneys due on the
Subject Bonds.

                  (d) PNM  agrees  that,  upon  acquisition  by PNM of the  1997
Refunding  Note, PNM will not  thereafter  sell,  assign,  transfer or otherwise
dispose of any portion of the 1997  Refunding  Note or any interest  therein (i)
except in a transaction  which is exempt from the  registration  requirements of
the Securities Act of 1933, as amended, (ii) except in a transaction which would
not involve  either a prohibited  transaction  (other than an exempt  prohibited
transaction) or an  impermissible  delegation of authority within the meaning of
the  Employee  Retirement  Income  Security  Act of 1974,  as  amended,  related
provisions of the Internal  Revenue Code of 1986, as amended,  and  implementing
regulations  (collectively,  "ERISA") and (iii) without the consent of the Owner
Participant, to any employee benefit plan subject to ERISA.

                  (e) PNM  acknowledges and agrees that the acquisition by it of
the 1997 Refunding Note shall  constitute the purchase and acquisition by PNM of
a Note for all  purposes of the Consent  and  reaffirms,  for the benefit of the
Owner Participant, each of its covenants and agreements contained therein.

                  (f)   Without   the  prior   written   consent  of  the  Owner
Participant,  PNM agrees that neither it nor any of its Affiliates, as holder of
the 1997  Refunding  Note,  will give or  participate  in any  request,  demand,
authorization, direction, notice, consent or waiver or other action available to
a holder of the 1997 Refunding Note.

                  (g) PNM will continue to satisfy its  obligations  to pay Rent
under the  Facility  Lease by making cash  payments at the time such Rent is due
and payable,  and in no case shall PNM tender,  or be  permitted to tender,  any
portion of the 1997 Refunding  Note in  satisfaction  of its  obligations to pay
Rent.

                  (h) PNM  represents  and  warrants  that,  on,  and as of, the
Closing  Date,  (i) PNM has obtained (A) the consent of each Equity  Investor to
the extent that such consent is required to purchase the 1997 Refunding Note and
(B) each other consent that is required  under any  Participation  Agreement and
(ii) PNM is legally entitled to purchase and hold the 1997 Refunding Note.


                                       5
<PAGE>


                  SECTION 5.  Agreements of the Owner Participant.

                  (a) The Owner  Participant  agrees that the acquisition by PNM
of the 1997  Refunding  Note is in  conformity  with the  Consent  and will not,
therefore,  result  in a breach  by PNM of the  Participation  Agreement  (after
giving  effect to the  amendment  to the  Participation  Agreement  set forth in
Section 10 of the 1996 Refunding Agreement).

                  (b) The Owner  Participant  will make a good  faith  effort to
cooperate with the other parties hereto in connection with the  Prepayment,  the
Redemption and the Issuance and Sale, SUBJECT NEVERTHELESS, to the provisions of
the Transaction Documents, the Consent and this Agreement.

                  SECTION 6.  Closing.

                  (a) On the Closing Date,  subject to the  satisfaction  of the
conditions  set forth in Section  6(b),  the parties  hereto shall perform their
respective  obligations  hereunder  specified to be performed on or prior to the
Closing Date.

                  (b) The obligation of the parties hereto to participate in the
Prepayment,  the  Issuance and Sale and the  Redemption  shall be subject to the
fulfillment on or before the Closing Date of the following  conditions precedent
(each instrument,  document,  certificate or opinion to be in form and substance
satisfactory to each party hereto):

                  (i) The Owner  Trustee  shall have  delivered to the Indenture
         Trustee  the  Owner  Trustee  Instrument  with  the  authorization  and
         direction subscribed thereon duly executed by the Owner Participant.

                  (ii) (A) The Owner  Trustee and the  Indenture  Trustee  shall
         have entered into the 1997 Supplement, (B) the Owner Trustee shall have
         executed  and  delivered  (I) the Allonge  and (II) the 1997  Refunding
         Note,  (C) the  Indenture  Trustee  shall have  authenticated  the 1997
         Refunding  Note  and  delivered  the  same  to  PNM,  (D)  the  Funding
         Corporation  and the  Collateral  Trust Trustee shall have accepted and
         countersigned  the  Allonge  and caused the same to be  attached to the
         Subject Note and (E) the Collateral Trust Trustee shall have sufficient
         funds  in the  Account  to pay any  amounts  due on the  Subject  Bonds
         through  January  15,  1998 and  from  January  16,  1998  through  the
         Redemption Date.

                  (iii) No Default or Event of  Default  or  Indenture  Event of
         Default shall have occurred and be continuing.

                  (iv) All conditions precedent to the acquisition by PNM of the
         1997 Refunding Note specified in the Consent shall have been fulfilled.

                  (v) The parties  shall have  received a  favorable  opinion of
         counsel from Keleher & McLeod,  P.A., New Mexico counsel for PNM, dated
         the  Closing  Date  and  addressing   such  matters   relating  to  the
         transactions in connection  with the Redemption,  the Issuance and Sale
         and the Prepayment as any party may reasonably have requested.


                                       6
<PAGE>

                  (vi) The parties  shall have  received a favorable  opinion of
         counsel from Winthrop,  Stimson, Putnam & Roberts,  special counsel for
         PNM and counsel for the Funding Corporation, dated the Closing Date and
         addressing such matters relating to the transactions in connection with
         the  Redemption,  the Issuance and Sale and the Prepayment as any party
         may reasonably have requested.

                  (vii) The parties  shall have received  favorable  opinions of
         counsel  from (1) counsel to the Owner  Trustee  dated the Closing Date
         and in the form of  Exhibit  E.1  hereto,  and (2)  Winthrop,  Stimson,
         Putnam & Roberts  dated the Closing Date and in the form of Exhibit E.2
         hereto.

                   (viii)  The  parties  shall  have  received  from  the  Owner
         Participant   an   acceptable   opinion   of  counsel  as  to  the  due
         authorization,  execution  and delivery of this  Agreement  by, and the
         legal,  valid and binding effect and  enforceability  of this Agreement
         against, the Owner Participant.

                  (ix) The  Collateral  Trust  Trustee  shall have  executed and
         delivered  a  Consent  and  Directive  (delivered  in its  capacity  as
         assignee and pledge of Funding  Corporation and as holder of all Notes)
         pursuant  to which,  among  other  things,  it  consents  to Section 10
         hereof.

                  SECTION  7.  Expenses.  PNM  agrees  that the fees,  expenses,
disbursements  and costs of the other parties  hereto and the  Collateral  Trust
Trustee reasonably incurred in connection with the Prepayment,  the Issuance and
Sale  and  the  Redemption  are  payable  by  PNM,  as  Supplemental   Rent,  as
contemplated by Section 14(b) of the  Participation  Agreement.  For purposes of
such Section  14(b),  PNM  acknowledges  and agrees that this  Agreement and the
transactions  contemplated  hereby and by the  Consent are within the intent and
scope of Section 14(b)(ii) of the Participation Agreement.

                  SECTION 8.  Request and Consent.

                  (a) In accordance with Section 2.01 of the Trust Agreement and
Section 3.5(2) of the Lease Indenture,  the Owner  Participant  hereby requests,
authorizes  and  directs  the  Owner  Trustee  and  the  Indenture  Trustee  (as
applicable)  to  execute,  deliver  and perform  this  Agreement,  the 1997 Note
Supplement,  the  1997  Refunding  Note,  the  Allonge  and  the  Owner  Trustee
Instrument.

                  (b) In accordance with Article X of the Lease  Indenture,  the
Owner Trustee hereby requests that the Indenture Trustee execute and deliver the
1997 Note Supplement and consents to such execution and delivery.


                                       7
<PAGE>


                  SECTION 9. No Adjustment,  etc. Anything in the Facility Lease
or the other Transaction Documents to the contrary not withstanding,  Basic Rent
and the  schedules to the Facility  Lease will not be subject to  adjustment  to
reflect  either  (i) the  inclusion  in income as to the  Owner  Participant  of
transaction expenses paid by PNM in connection with the Prepayment, the Issuance
and  Sale  and the  Redemption  or  (ii)  the  current  deduction  by the  Owner
Participant   (in   consequence   of  the   Prepayment)   of  any   portion   of
previously-incurred   transaction   expenses  presently  being  amortized  on  a
straight-line  basis  during  the Basic  Lease  Term.  PNM  agrees  that any net
increase in the Owner  Participant's  Net Economic  Return in consequence of the
foregoing may be retained by the Owner Participant in connection with any future
adjustment under the Facility Lease undertaken with the intent of preserving the
Owner Participant's Net Economic Return.

                  SECTION 10.  Amendment to Subject Note

                  Anything in the Subject Note to the contrary  notwithstanding,
the prepayment price for the portion of the Subject Note which is the subject of
the Prepayment shall be 105.684% of the principal amount being prepaid, together
with  interest  accrued to the date fixed for the  Prepayment,  except  that the
prepayment price for $584,000 of the Prepayment shall be 100.000% of such amount
together with interest accrued thereon to the date fixed for the Prepayment.

                  SECTION 11.  Additional Provisions.

                  (a) The following  provisions of the  Participation  Agreement
are  incorporated  herein  by this  reference,  mutatis  mutandis,  and shall be
applicable to and enforceable by the relevant party or parties hereto:  Sections
16,  17(b) and 18 (except  that the  addresses  of the  parties  for  receipt of
notices,  etc.,  shall be as set forth on Schedule II hereto) and Sections 19(a)
through Section 19(h).

                  (b)   Notwithstanding   Section  19(g)  of  the  Participation
Agreement (as  incorporated by Section 11(a) hereof),  the Consent shall survive
the execution, delivery and performance of this Agreement.

                  (c) The recitals contained herein shall be taken as statements
of PNM, and the other parties assume no  responsibility  for the  correctness of
the same.

                  (d) Chase and State  Street are entering  into this  agreement
solely  in  their  respective  trust  capacities  and  not in  their  respective
individual capacities. Anything herein to the contrary notwithstanding,  all and
each of the agreements herein made on the part of each such trustee are made and
intended not as personal  agreements  but are made and  intended  solely for the
purpose of binding the trust  estate in respect of which Chase or State  Street,
as the case may be, is trustee.



                                       8
<PAGE>


                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Refunding  Agreement  No. 8A to be duly  executed by their  respective  officers
thereunto duly authorized.

                                    PUBLIC SERVICE COMPANY
                                      OF NEW MEXICO


                                    By:____________________________
                                    Name:
                                    Title:


                                    MFS LEASING CORP.


                                    By:_____________________________
                                    Name:
                                    Title:

                                    FIRST PV FUNDING CORPORATION


                                    By:_______________________________
                                    Name:
                                    Title:

                                    THE CHASE MANHATTAN BANK,
                                    as Indenture Trustee


                                    By:______________________________
                                    Name:
                                    Title:


                                    STATE STREET BANK AND TRUST COMPANY,
                                    not in its individual  capacity,  but solely
                                    as Owner Trustee as aforesaid


                                    By:_______________________________
                                    Name:
                                    Title:


                                       9
<PAGE>



                                                                   SCHEDULE I to
                                                      Refunding Agreement No. 8A

1.  Name of Owner Participant:              MFS Leasing Corp. (successor by
                                            assignment to Beneficial Leasing
                                            Group, Inc.), a Delaware corporation

2.  Note to be Prepaid:                     10.15% Non-Recourse Promissory Note,
                                            Fixed Rate Series (Due January 15,
                                            2016), dated November 25, 1986

3.  Amount to be Prepaid:                   $28,900,000

4.  Prepayment Premium:                     $1,609,481.44

5.  1997 Refunding Note:

       (i) Interest Rate:                   10.15%

      (ii) Principal Amount:                $28,900,000

     (iii) Stated Maturity of Principal:    January 15, 2016

      (iv) Interest payable from:           July 15, 1997

       (v) Interest Payment Dates:          January 15 and July 15 in each year,
                                            commencing January 15, 1998

      (vi) Principal Amortization:          As specified in Exhibit A to the
                                            1997 Note Supplement

     (vii) Optional Prepayment:             As specified in Exhibit A to the
                                            1997 Note Supplement

    (viii) Other terms:                     As specified in Exhibit A to the
                                            1997 Note Supplement

6.  Purchase Price for Refunding Note:      $28,900,000 plus accrued interest
                                            from July 15, 1997

7.  Supplemental Rent Payment:              $1,609,481.44

8.  Consent:                                Consent dated as of April 22, 1996,
                                            executed by MFS Leasing Corp.



<PAGE>

                                                                  SCHEDULE II to
                                                      Refunding Agreement No. 8A


                                    ADDRESSES


1.       Public Service Company of New Mexico
         Alvarado Square
         Albuquerque, New Mexico 87158
                  Attention of Secretary

2.       MFS Leasing Corp.
         919 North Market Street, Suite 200
         Wilmington, Delaware 19808
                  Attention of President

3.       State Street Bank and Trust Company
         Two International Place, 4th Floor
         Boston, Massachusetts 02110
                  Attention of Corporate Trust Department

4.       The Chase Manhattan Bank
         450 West 33rd Street, 15th Floor
         New York, New York 10001
                  Attention of Corporate Trustee Administration

5.       First PV Funding Corporation
         Corporation Trust Center
         1209 Orange Street
         Wilmington, Delaware 19801
                  Attention of President

<PAGE>


                                                                    EXHIBIT B to
                                                      Refunding Agreement No. 8A



                                December 30, 1997




THE CHASE MANHATTAN BANK, as trustee
 under   the   Collateral
 Trust Indenture dated as
 of  December   16,  1985
 with  First  PV  Funding
 Corporation  and  Public
 Service  Company  of New
 Mexico
450 West 33rd Street
New York, New York 10001

Attention of:     Ms. Patricia Morabito
                  Vice President


                  Re: Optional Redemption of Certain Bonds


Gentlemen:

                  The undersigned  hereby notifies you that it is exercising its
option  to effect a  redemption  of  certain  securities  outstanding  under the
above-referenced   Collateral   Trust  Indenture  (as  heretofore   amended  and
supplemented, the "Indenture"). Capitalized terms used herein without definition
have the respective meanings specified in the Indenture.

                  On January 20, 1998 (the "Redemption  Date"),  the undersigned
will redeem  $28,316,000  principal  amount of the  undersigned's  10.15%  Lease
Obligation Bonds Series 1986B with a Stated Maturity of principal of January 15,
2016 (the "2016 Bonds").

                  This letter  constitutes  a Company  Order with respect to the
foregoing matters.



<PAGE>


                  Accompanying this notice is a form of notice of redemption for
the 2016 Bonds which are being redeemed.

                          FIRST PV FUNDING CORPORATION



                          By: _____________________________
                                Mark A. Ferrucci
                                    President


                          By: _____________________________
                                   A.M. Horne
                                    Secretary

cc:      Public Service Company
         of New Mexico


<PAGE>

                                                       *CUSIP Number: 335877AF3

                              NOTICE OF REDEMPTION
                                to the Holders of
                          First PV Funding Corporation
                             Lease Obligation Bonds

                    Series 1986B 10.15% due January 15, 2016

NOTICE IS HEREBY  GIVEN,  pursuant  to the  provisions  of  Section  6.03 of the
Collateral Trust Indenture dated as of December 16, 1985 (the "Collateral  Trust
Indenture"),  among First PV Funding Corporation (the "Company"), Public Service
Company of New Mexico, and The Chase Manhattan Bank (formerly known as "Chemical
Bank"),  as Trustee (the  "Trustee"),  as amended and supplemented by the Series
1986B  Bond   Supplemental   Indenture  dated  as  of  November  18,  1986  (the
"Supplemental  Indenture"),  that said  Trustee  has  received a notice from the
Company with respect to the optional redemption of $28,316,000  principal amount
of the above-described Bonds ("the Bonds") on the redemption date of January 20,
1998  ("Redemption  Date") at a  redemption  price of  $1,058.25  per  $1,000 of
principal  amount  (inclusive of premium and accrued  interest to the Redemption
Date) (the "Redemption Price").

                  The numbers and principal  amounts of the Bonds to be redeemed
in whole or in part are as follows:

         Bond No.                                          Principal Amount
         --------                                          ----------------
         R  10168                                           $17,041,000.00
         R  10173                                               698,000.00
         R  10174                                             9,084,000.00
         R  10176                                                 2,000.00
         R  10177                                                 1,000.00
         R  10186                                                22,000.00
         R  10188                                                23,000.00
         R  10195                                             1,086,000.00
         R  10205                                               302,000.00
         R  10223                                                 9,000.00
         R  10227                                                37,000.00
         R  10228                                                 5,000.00
         R  10233                                                 6,000.00

                  On the Redemption Date the Bonds or portions thereof specified
above will be redeemed at the Redemption Price. Each holder of a Bond, a portion
of which has been selected for redemption,  shall upon surrender thereof receive
a new Bond, of the same series and Stated Maturity of principal, for the portion
thereof not called for redemption. In order to receive payment of the Redemption
Price,  such Bonds or portions  thereof  must be  surrendered  for payment on or
after the Redemption Date to The Chase Manhattan Bank as follows:

<PAGE>


By Mail:                  By Hand:                      By Courier:
- --------                  --------                      -----------
The Chase Manhattan Bank  The Chase Manhattan Bank      The Chase Manhattan Bank
c/o Texas Commerce Bank   Corporate Trust Securities    c/o Texas Commerce Bank
Corporate Trust Services  Window                        Corporate Trust Services
P.O. Box 219052           55 Water Street-Second Floor  1201 Main Street
Dallas, Texas 75221-9052  Room 234-North Building       18th Floor
                          New York, New York 10041      Dallas, Texas 75202

                  On the Redemption  Date, the Redemption  Price will become due
and payable upon each Bond to be redeemed and from and after the Redemption Date
interest on the Bonds to be redeemed shall cease to accrue.


                                   First PV Funding Corporation

                                   By:  The Chase Manhattan Bank,
                                   as Trustee

Dated:  December 31, 1997

                                   ----------

Under the Interest and Dividend Tax  Compliance  Act of 1983, we may be required
to withhold 31% of any gross  payments  made within the United States to certain
holders who fail to provide us with, and certify under  penalties of perjury,  a
correct taxpayer  identifying number (employer  identification  number or social
security  number,  as appropriate) or an exemption  certificate on or before the
date the  securities  are presented for payment.  Please  therefore  provide the
appropriate certification when presenting your securities for payment.

*This  CUSIP  number  has been  assigned  to this issue by an  organization  not
affiliated  with the Trustee and is included  solely for the  convenience of the
Bondholders. Neither First PV Funding Corporation, Public Service Company of New
Mexico,  nor the Trustee shall be  responsible  for the selection or use of this
CUSIP number, nor is any representation  made as to its correctness on the Bonds
or as indicated in any redemption notice.



<PAGE>

                                                                    EXHIBIT C to
                                                      Refunding Agreement No. 8A



                                     ALLONGE
                                       to
           $34,101,000 NON-RECOURSE PROMISSORY NOTE, FIXED RATE SERIES
           (DUE JANUARY 15, 2016) DATED NOVEMBER 25, 1986 OF THE FIRST
       NATIONAL BANK OF BOSTON, NOT IN ITS INDIVIDUAL CAPACITY, BUT SOLELY
                                AS OWNER TRUSTEE,


                  On December 30, 1997,  the  undersigned  obligor in respect of
the  above-captioned  promissory note (the "Note"),  prepaid  $28,900,000 of the
unpaid  principal  amount of the Note,  leaving  an unpaid  principal  amount of
$3,411,000.  Schedule  1 to the Note  (as  added by the  Allonge  thereto  dated
September  27,  1996) is hereby  superseded  and  replaced by Schedule 1 to this
Allonge.  The  undersigned has succeeded to The First National Bank of Boston as
owner trustee/obligor in respect of the Note.

Date:  December 30, 1997          STATE STREET BANK AND TRUST COMPANY, not in
                                  its individual capacity but solely as owner
                                  trustee under the Trust Agreement dated as of
                                  August 12, 1986 with MFS Leasing Corp.


                                  By:_________________________
                                      Name:
                                     Title:


                  The undersigned  acknowledge and accept the foregoing  allonge
and agree that it shall be affixed to the Note.

Date:  December 30, 1997


THE CHASE MANHATTAN BANK,                   FIRST PV FUNDING CORPORATION
 as Trustee


By:___________________________              By:______________________________
Name:                                       Name:
Title:                                      Title:


<PAGE>


                                                                      SCHEDULE 1
                                                                      to Allonge

                            SCHEDULE 1 (Replacement)
                             TO THE FIXED RATE NOTE
                             (DUE JANUARY 15, 2016)

                       Schedule of Principal Amortization

                           $3,411,000 Principal Amount

Payment                             Principal                       Principal
Date                              Amount Payable                   Amount Paid
- ---------                         --------------                   -----------
January 15, 1998                 $     66,000
July 15, 1998                          69,000
January 15, 1999                       61,000
July 15, 1999                          47,000
January 15, 2000                       51,000
July 15, 2000                          54,000
January 15, 2001                       55,000
July 15, 2001                          58,000
January 15, 2002                       59,000
July 15, 2002                          62,000
January 15, 2003                       62,000
July 15, 2003                          66,000
January 15, 2004                       67,000
July 15, 2004                          71,000
January 14, 2005                       70,000
July 15, 2005                          76,000
January 15, 2006                       76,000
July 15, 2006                          80,000
January 15, 2007                       81,000
July 15, 2007                          86,000
January 15, 2008                       86,000
July 15, 2008                          92,000
January 15, 2009                       92,000
July 15, 2009                          98,000
January 15, 2010                       98,000
July 15, 2010                         104,000
January 15, 2011                      105,000
July 15, 2011                         110,000
January 15, 2012                      111,000
July 15, 2012                         120,000
January 15, 2013                      119,000
July 15, 2013                         127,000
January 15, 2014                      127,000

<PAGE>

Payment                             Principal                     Principal
Date                              Amount Payable                 Amount Paid
- ---------                         --------------                 -----------

July 15, 2014                         124,000
January 15, 2015                      134,000
July 15, 2015                         146,000
January 15, 2016                      301,000
                                   ----------
Principal Amount                   $3,411,000
                                   ==========



<PAGE>



                                                                    EXHIBIT D to
                                                      Refunding Agreement No. 8A



                     CERTIFICATE, REQUEST AND AUTHORIZATION


                  Reference  is  made  to (i)  the  Trust  Indenture,  Mortgage,
Security  Agreement  and  Assignment  of Rents  dated as of August 12,  1986 (as
heretofore  supplemented,  the "Indenture") to which the undersigned (the "Owner
Trustee") and THE CHASE MANHATTAN BANK (formerly known as "Chemical  Bank"),  in
its capacity as Indenture Trustee (the "Indenture Trustee"), are party, and (ii)
the 1997  Supplemental  Indenture  dated as of December 23, 1997 (the "1997 Note
Supplement")  between the Owner Trustee and the Indenture  Trustee.  Capitalized
terms  used  herein  without  definition  shall  have  the  respective  meanings
specified in the Indenture (including Appendix A thereto).

                  This   Certificate,    Request   and    Authorization    (this
"Instrument")  is being made and given by the Owner Trustee pursuant to Sections
3.5(4)(b) and (d) of the  Indenture in connection  with (i) the execution by the
Indenture   Trustee  of  the  1997  Note   Supplement  and  (ii)  the  issuance,
authentication  and delivery of the 1997  Refunding Note (as defined in the 1997
Supplement).  This  Instrument  is being  executed  and  delivered  by the Owner
Trustee by one of its Responsible Officers (the "Executing Officer").

                  1. The Executing  Officer  CERTIFIES  that he is a Responsible
Officer of the Owner  Trustee and that he is  authorized  to execute and deliver
this Instrument on behalf of the Owner Trustee.

                  2.  The Executing Officer further CERTIFIES that

                  (i) to the  best  knowledge  of  such  Executing  Officer,  no
         Default or Event of Default or Indenture  Event of Default has occurred
         and is continuing;

                  (ii) the  conditions  in respect of the  issuance  of the 1997
         Refunding  Note  contained  in Section 3.5 of the  Indenture  have been
         satisfied;

                  (iii) costs and expenses  relating to issuance and sale of the
         1997 Refunding Note are in excess of $10,000; and


<PAGE>



                  (iv)  payments  pursuant to the Facility  Lease of Basic Rent,
         Casualty Value,  Special  Casualty Value and  Termination  Value and of
         amounts in respect of the exercise of the Cure Option or the occurrence
         of the Special Purchase Event or Special  Purchase Option,  as the case
         may be, are  sufficient to pay all the  Outstanding  Notes after taking
         into  account the issuance of the 1997  Refunding  Note and the related
         partial prepayment of the Fixed Rate Note due January 15, 2016.

                  3. By its  authorization  and direction  set forth below,  the
Owner  Participant (i) has agreed that this Instrument,  taken together with the
1997 Note Supplement,  constitute compliance with Sections 3.5(1) and (2) of the
Lease  Indenture by the Owner  Trustee,  and (ii) waives the benefit of any time
periods specified in Section 3.5(2) of the Lease Indenture.

                  4. Upon receipt by the Indenture  Trustee,  for the account of
the Owner Trustee,  of an amount equal to the sum of (i) the principal amount of
the 1997  Refunding  Note and (ii) interest  accrued  thereon from July 15, 1997
through December 30, 1997 (aggregating, $1,344,452.08), the Indenture Trustee is
hereby  REQUESTED and  AUTHORIZED to  authenticate  the 1997  Refunding Note and
deliver the same to Public Service Company of New Mexico.


<PAGE>



                  IN WITNESS WHEREOF, the undersigned Responsible Officer of the
Owner Trustee has executed this Instrument on behalf of the Owner Trustee on the
date below written.


Date:  December 30, 1997                STATE STREET BANK AND TRUST COMPANY, not
                                        in its individual capacity but solely as
                                        owner trustee under the Trust Agreement
                                        dated as of August 12, 1986 with the
                                        below named owner participant,


                                        By:_______________________________
                                        Name:
                                        Title:


                           AUTHORIZATION AND DIRECTION

                  The undersigned,  the sole beneficiary of the  above-mentioned
Trust Agreement,  hereby AUTHORIZES and DIRECTS the Owner Trustee to execute and
deliver the instrument on which is subscribed this authorization and direction.


Date:  December 30, 1997                    MFS LEASING CORP.


                                            By:_________________________
                                            Name:
                                            Title:


<PAGE>


                                                                  EXHIBIT E.1 to
                                                      Refunding Agreement No. 8A



                [Form of opinion of counsel to the Owner Trustee]

                                                    December 30, 1997

MFS Leasing Corp.
919 North Market Street Suite 200
Wilmington, Delaware 19808

State Street Bank and Trust Company, as Owner Trustee
Two International Place
Boston, Massachusetts 02110

The Chase Manhattan Bank, as Indenture Trustee and
         as Collateral Trust Trustee
450 West 33rd Street
New York, New York 10001

First PV Funding Corporation
1209 Orange Street
Wilmington, Delaware 19801

Public Service Company of New Mexico
Alvarado Square
Albuquerque, New Mexico 87158

                  Re: Refunding Agreement No. 8A dated as of December 23, 1997.

Ladies and Gentlemen:

                  We have  acted as  counsel  to  State  Street  Bank and  Trust
Company,  a Massachusetts  trust company ("State Street") in connection with the
Refunding  Agreement  No.  8A dated as of  December  23,  1997  (the  "Refunding
Agreement") by and among State Street, not in its individual capacity but solely
as owner trustee (in such capacity, the "Owner Trustee") under a Trust Agreement
dated as of August 12, 1986 between MFS Leasing  Corp.  (successor by assignment
to  Beneficial   Leasing  Group,   Inc.),  as  Owner   Participant  (the  "Owner
Participant")  and  State  Street as  successor  as Owner  Trustee  to The First
National Bank of Boston,  the owner trustee  originally  designated therein (the
"Trust  Agreement"),  Public  Service  Company of New Mexico  ("PNM"),  First PV
Funding Corporation ("Funding Corporation"),  The Chase Manhattan Bank (formerly
known as "Chemical  Bank"),  not in its individual  capacity but solely as lease
indenture  trustee (the  "Indenture  Trustee") in connection  with the 1997 Note
Supplement  and the 1997  Refunding  Note (as each such term is  defined  in the
Refunding Agreement).

<PAGE>

                  All  capitalized  terms used herein and not otherwise  defined
shall have the  respective  meanings  assigned to such terms in (or by reference
in) the Refunding Agreement.

                  In  connection  with the  opinions  expressed  below,  we have
examined the Refunding Agreement,  the 1997 Note Supplement,  the 1997 Refunding
Note,  the  Allonge and the Owner  Trustee  Instrument  (sometimes  collectively
referred to herein as the "Refunding Documents"),  and the Trust Agreement,  and
we have  examined  such  other  agreements,  documents,  certificates  and other
statements  as we  have  deemed  relevant  and  necessary  as a basis  for  such
opinions.  In  such  examination,   we  have  assumed  the  genuineness  of  all
signatures, the adequate power and due authorization,  execution and delivery of
all signatories  (other than the Owner  Trustee),  the legal capacity of natural
persons, the authenticity of all documents submitted to us as originals, and the
conformity  with the  originals of all documents  submitted to us as copies.  We
have  assumed  that each of the  Refunding  Documents  is the  legal,  valid and
binding  obligation of each of the parties  thereto  (except that we do not make
that assumption as to the Owner  Trustee),  duly  enforceable  against each such
entity in accordance with its terms.

                  As to factual  matters,  we have relied  exclusively  upon the
representations  and  warranties  contained in the Refunding  Documents to which
this  opinion  relates,  and  those  contained  in any other  documents  we have
examined  for  purposes  of this  opinion.  We  have  conducted  no  independent
investigation  of any  factual  matters  germane  to this  opinion,  and we have
assumed without independent verification the truth, accuracy and completeness of
all information, representations and warranties in all documents or materials we
have examined.

                  We  render  no  opinion  herein  as  to  compliance   with  or
satisfaction of the conditions  precedent to issuance or  authentication  of the
1997  Refunding  Notes under the Indenture  (and we understand  that you will be
relying upon a separate opinion of Winthrop,  Stimson,  Putnam & Roberts of even
date in that regard).

                  Each of the opinions  expressed herein is given as of the date
hereof, and we undertake no responsibility to advise you of any matter,  whether
of a factual or legal nature,  that may occur or come to our attention after the
date hereof.

                  Upon  the  basis  of and  subject  to the  foregoing,  and the
qualifications or assumptions appearing below, we are of the opinion that:

                  1. The Owner Trustee is a  Massachusetts  trust company,  duly
organized,  validly  existing  and  in  good  standing  under  the  laws  of The
Commonwealth of Massachusetts.

                  2. The Owner  Trustee has  corporate  power and  authority  to
enter into each of the Refunding Documents.

<PAGE>

                  3. Each of the Refunding Documents has been duly authorized by
all necessary  corporate  action on the part of the Owner Trustee,  and has been
duly executed and delivered by a duly authorized officer of the Owner Trustee.

                  4. Each of the  Refunding  Documents  constitutes  the  legal,
valid and binding  obligation of the Owner  Trustee,  enforceable  against it in
accordance  with its terms,  subject to applicable  bankruptcy,  reorganization,
insolvency, receivership, moratorium and other similar laws affecting creditors'
rights  generally  and subject to general  principles of equity  (regardless  of
whether  enforcement  is  considered  in a  proceeding  in equity or at law) and
judicial discretion in granting equitable remedy.

                  We are members of the Bar of The Commonwealth of Massachusetts
only,  and  the  opinions  set  forth  above  are  limited  to the  laws of said
Commonwealth  in  effect  as of  the  date  hereof  and,  to the  extent  stated
hereinabove,  the federal  laws of the United  States of America in effect as of
the date hereof.

                  Nothing  herein  shall  constitute  an opinion as to choice of
laws, and we have assumed the  applicability of Massachusetts law to the matters
addressed herein.

                  Except as otherwise expressly provided herein, this opinion is
delivered to you solely for your benefit in  connection  with the  execution and
delivery  of the  Refunding  Documents  and  the  closing  of  the  transactions
contemplated by the Refunding Agreement,  and it may not be used,  circulated or
quoted or  otherwise  referred to for any other  purpose,  or to or by any other
person, without our express written consent.

                                      Very truly yours,



                                      PEABODY & ARNOLD



<PAGE>

                                                                  EXHIBIT E.2 to
                                                      Refunding Agreement No. 8A



            [Form of Opinion of Winthrop, Stimson, Putnam & Roberts]





                                December 30, 1997


The Chase Manhattan Bank
  as Indenture Trustee
450 West 33rd Street
New York, New York 10001

Ladies and Gentlemen:

                  We have acted as counsel for First PV Funding  Corporation,  a
Delaware  corporation  ("Funding  Corporation"),  and special counsel for Public
Service Company of New Mexico, a New Mexico corporation  ("PNM"),  in connection
with the  transactions  contemplated  by Refunding  Agreement No. 8A dated as of
December  23, 1997 (the  "Refunding  Agreement")  between  State Street Bank and
Trust  Company,  a  Massachusetts  trust company  ("State  Street"),  not in its
individual  capacity but solely as owner trustee (the "Owner Trustee") under the
Trust Agreement dated as of August 12, 1986 with MFS Leasing Corp. (successor by
assignment  to Beneficial  Leasing  Group,  Inc.),  as Owner  Participant,  PNM,
Funding  Corporation  and The Chase  Manhattan Bank (formerly known as "Chemical
Bank"),  a New York banking  corporation,  not in its individual  capacity,  but
solely as lease indenture  trustee under the Lease  Indenture  referred to below
(the  "Indenture  Trustee"),  and have examined the Trust  Indenture,  Mortgage,
Security  Agreement  and  Assignment  of Rents  dated as of August 12,  1986 (as
heretofore  supplemented  and as to be  further  supplemented  by the 1997  Note
Supplement  (as  defined  in the  Instrument,  as  defined  below),  the  "Lease
Indenture")  between the  Indenture  Trustee and the Owner Trustee and the Owner
Trustee's  Certificate,  Request  and  Authorization  dated the date hereof (the
"Instrument") to you as Indenture Trustee pursuant to Sections 3.5(4)(b) and (d)
of the Lease Indenture relating to the issuance,  authentication and delivery of
the 1997  Refunding  Note (as defined in the  Instrument)  and the execution and
delivery  of the 1997 Note  Supplement.  Capitalized  terms used  herein and not
otherwise defined shall have the respective  meanings assigned to such terms set
forth in Appendix A to the Lease Indenture.

                  In this connection,  we have also reviewed, and have relied as
to matters of fact  material to this opinion upon,  the Refunding  Agreement and
the  Instrument,  and we have examined such other  documents and have  satisfied
ourselves  as to such other  matters  as we have  deemed  necessary  in order to
enable us to render  this  opinion.  In such  examination,  we have  assumed the
genuineness  of all  signatures,  the legal  capacity  of natural  persons,  the
conformity to original  documents of all documents  submitted to us as certified
or  photostatic  copies,  and the  authenticity  of the originals of such latter
documents.

<PAGE>

                  Based  on  the  foregoing,  we are of  the  opinion  that  the
conditions  precedent  required under the Lease Indenture for the authentication
and delivery of the 1997  Refunding  Note and the  execution and delivery of the
1997 Note Supplement have been complied with.

                  We have read the  conditions of the Lease  Indenture,  and the
definitions  therein  relating  thereto,  relating  to  the  authentication  and
delivery of the 1997  Refunding  Note and the execution and delivery of the 1997
Note Supplement.  This opinion is also based on knowledge acquired in the course
of acting as  counsel  for  Funding  Corporation  and  insofar  as it relates to
factual matters,  on examination of representations by responsible  officers and
employees of the Owner Trustee having knowledge of the relevant facts.

                  In our opinion, we have made such examination or investigation
as is  necessary  to enable us to express an informed  opinion as to whether the
conditions  relating to the  authentication  and delivery of the 1997  Refunding
Note and the  execution  and  delivery  of the 1997  Note  Supplement  have been
complied with; and in our opinion such conditions have been complied with.

                  This  opinion  is limited to the laws of the State of New York
and is  furnished  by us, as  special  counsel  to PNM and  counsel  to  Funding
Corporation,  to you, as Indenture  Trustee,  solely for your use in  connection
with  the  authentication  and  delivery  of the  1997  Refunding  Note  and the
execution and delivery of the 1997 Note Supplement and may not be relied upon by
any other person or for any other purpose without our express written consent.

                                   Very truly yours,




<PAGE>


                           THIRD RESTATED AND AMENDED
                      PUBLIC SERVICE COMPANY OF NEW MEXICO
                             PERFORMANCE STOCK PLAN


                                    ARTICLE I
                                     Purpose

                The  purpose  of  the  Public  Service  Company  of  New  Mexico
Performance Stock Plan (the "Plan") is to increase the proprietary  interests in
the Company of certain key  employees  with the intent of (i) fostering a strong
incentive for such  individuals to put forth maximum effort to achieve a pattern
of sustained growth of the Company,  and to perform in the best interests of the
Company, its shareholders,  customers and employees,  (ii) retaining individuals
who will put  forth  such  efforts,  and  (iii)  attracting  the best  available
individuals  to fulfill those  positions in the future.  The Plan was originally
approved by the  shareholders  of the Company on May 25, 1993, and was effective
on July 1,  1993.  The Plan was first  amended on  February  23,  1994,  and was
restated and amended  effective January 1, 1996 (the "First Restated and Amended
Plan").  In 1997,  the First  Restated and Amended Plan was amended.  The Second
Restated and Amended  Plan was  approved and became  effective on March 10, 1998
(the "Second  Restatement").  The Company now desires to make certain  technical
corrections  to the Second  Restatement  and,  for  administrative  convenience,
wishes to embody the technical  corrections  in the form of a  restatement  (the
"Third Restatement").

                                   ARTICLE II
                                   Definitions

                The  following  words and  phrases,  when  used with an  initial
capital  letter,  shall have the  meaning  set forth  below  unless the  context
clearly indicates otherwise:

                2.1 "Award" or "Awarded"  shall mean an Option granted  pursuant
to the terms and conditions of this Plan.

                2.2 "Board" shall mean the Board of Directors of the Company.

                2.3 "Cause", subject to the exception and modification set forth
at the end of this Section 2.3, shall mean termination of employment due to:

                     a. the failure of a Participant  to  substantially  perform
his or her duties with the Company, or

                     b. the  engaging  by the  Participant  in conduct  which is
injurious to the Company, monetarily or otherwise.

                Provided,  however,  that Section  2.3a.  shall not apply if the
failure  results from such  Participant's  incapacity  due to physical or mental
illness.

                2.4  "Change  in  Control",   subject  to  the   exceptions  and
modifications  set forth at the end of this Section 2.4, shall be deemed to have
occurred if:

                     a. any "person" (as such term is used in Sections 13(d) and
14(d) of the Exchange Act (as hereinafter defined) is or becomes the "beneficial
owner"  (as  defined  in  Rule  13d-3  under  the  Exchange  Act),  directly  or
indirectly,  of  securities  of the  Company  representing  20% or  more  of the
combined voting power of the Company's then outstanding securities;


                                       1
<PAGE>


                     b.  during  any  period  of  two  consecutive   years  (not
including any period prior to July 1, 1993),  the following  individuals  cease,
for any reason, to constitute a majority of the Board:

                         (i)  those  directors  who,  at the  beginning  of such
period, constitute the Board; plus

                         (ii) any new directors  whose  election by the Board or
nomination for election by the Company's  stockholders was approved by a vote of
at least  two-thirds  (2/3rds)  of the  directors  then still in office who were
either directors at the beginning of such period or whose election or nomination
for election was previously so approved (such new directors being referred to as
"Approved New Directors");

                     c. the  shareholders  of the  Company  approve  a merger or
consolidation of the Company with any other corporation; or

                     d.  the  shareholders  of the  Company  approve  a plan  of
complete  liquidation of the Company or an agreement for the sale or disposition
by the Company of all or substantially all of the Company's assets.

                Section  2.4a.  shall not apply if the  "person"  as referred to
therein  is, or shall be (i) a trustee  or other  fiduciary  holding  securities
under an  employee  benefit  plan of the  Company or (ii) a  corporation  owned,
directly or indirectly,  by the stockholders of the Company in substantially the
same proportions as their ownership of stock of the Company.

                In Section 2.4b.,  the Approved New Director shall not include a
director  designated  by a person who has  entered  into an  agreement  with the
Company to effect a  transaction  described  in Section  2.4a,  2.4c.  or 2.4d.,
hereof.

                Section 2.4c. shall not apply to a merger or consolidation which
would result in the voting  securities  of the Company  outstanding  immediately
prior thereto  continuing to represent  (either by remaining  outstanding  or by
being converted into voting  securities of the surviving entity) at least 80% of
the  combined  voting  power of the  voting  securities  of the  Company or such
surviving entity outstanding immediately after such merger or consolidation.

                2.5 "Code" shall mean the Internal  Revenue Code of 1986, as may
be amended from time to time.

                2.6 "Committee"  shall mean the Compensation and Human Resources
Committee of the Board or any such other  committee as may be  designated by the
Board to administer  the Plan,  the  membership of such committee not being less
than two  members of the Board.  All  Committee  members  must be  "Non-Employee
Directors"  (as defined in Rule 16b-3) if  required to meet the  conditions  for
exemption of the Awards under the Plan from Section 16(b) of the Exchange Act.

                2.7  "Company"  shall  mean the  Public  Service  Company of New
Mexico.

                2.8  "Disability"  or  "Disabled"  shall mean the inability of a
Participant  to engage in any  substantially  gainful  activity by reason of any
medically  determinable  physical or mental  impairment  that can be expected to
result in death or which has lasted or can be expected to last for a  continuous
period of not less than twelve (12) months.  The  permanence  and degree of such
impairment shall be supported by medical evidence.



                                       2
<PAGE>

                2.9 "ERISA" shall mean the Employee  Retirement  Income Security
Act of 1974,  as may be amended  from time to time.  This Plan is a  performance
based bonus plan and is not intended to be either an employee pension or welfare
benefit plan subject to ERISA.

                2.10 "Exchange  Act" shall mean the  Securities  Exchange Act of
1934, as amended.

                2.11  Exercise  Price"  shall mean the Fair Market  Value of the
Stock on the Grant Date of an Option.

                2.12 "Fair  Market  Value of the Stock"  shall mean the  closing
sale  price of one  share  of  Stock  for "New  York  Stock  Exchange  Composite
Transactions", as reported in the Western Edition of the Wall Street Journal, on
the date such value is  determined  (or if Stock is not traded on such date,  on
the first immediately preceding business day on which Stock was so traded).

                2.13  "Grant  Date" shall mean the date an Award is granted to a
Participant. For grants approved after February 9, 1998, "Grant Date" shall mean
the date the Committee approves the Award.

                2.14  "Initial  Awards"  shall mean  those  Awards  pursuant  to
Section 7.1 hereof.

                2.15 "Officer" shall mean a Participant who is an officer of the
Company. The final classification of a Participant as an Officer under this Plan
shall be in the sole discretion of the Committee.

                2.16  "Option"  shall mean a right to  purchase a share of Stock
granted pursuant to the Plan,  containing such terms and conditions as specified
herein. Each Option shall consist of the right to purchase one share of Stock at
the Exercise Price.

                2.17  "Option  Price"  shall  mean the  value of the  Option  as
determined in the sole and absolute discretion of the Committee,  as of the date
each Award is made.  The Option Price shall be the same for all Options  awarded
on the same  date.  The  Option  Price  was only  used for  Awards  on or before
December 31, 1995.

                2.18 "Original  Plan" shall mean the Plan as originally  adopted
on May 25, 1993 and as amended by the First Amendment dated February 23, 1994.

                2.19  "Partial  Award"  shall mean  Performance  Based Awards as
described in Section 7.2b. below.

                2.20 "Participant"  shall mean any employee of the Company,  who
is selected from time to time to participate in the Plan. The President's  right
to  participate  in the Plan shall be determined  in the sole  discretion of the
Committee.  Selection of all other employees to participate in the Plan shall be
made by the President, in his or her sole discretion.

                2.21 "Performance  Based Awards" shall mean those Awards granted
pursuant to Sections 7.2 and 7.3.

                2.22  "Performance  Goals" shall mean those  Company-wide  goals
established  pursuant to Section 7.2 used to  determine  the  Performance  Based
Awards awarded under Section 7.2.


                                       3
<PAGE>

                2.23 "Plan" shall mean the Public Service  Company of New Mexico
Performance Stock Plan, as set forth herein,  and as may hereafter be amended or
restated from time to time.

                2.24  "Plan  Administrator"  shall  mean the  person  holding  a
specified  position with the Company wherein either such person or such position
is assigned the responsibility by the Committee to administer the Plan.

                2.25 "President"  shall mean the President of the Public Service
Company of New Mexico.

                2.26 "Retirement" or "Retires", for purposes of this Plan, shall
mean  retirement  as defined  within the  Public  Service  Company of New Mexico
Employees'  Retirement Plan ("Retirement Plan") if the Participant is covered by
the Retirement  Plan. If the Participant is not covered by the Retirement  Plan,
retirement shall be deemed to be the attainment of at least age 59 1/2.

                2.27 "Salary Range Control  Point" shall mean the market control
point within the  Company's  salary line for those  employees in the same salary
range as the Participant,  based upon the Participant's employment position with
the Company.  The  Company's  compensation  system is  segregated  into numerous
salary  ranges.  Each  employee  is assigned  to a salary  range and,  except in
extraordinary  cases,  his or her salary  will be between  the  minimum  and the
maximum of the salary  range.  The control  point is a point between the minimum
and the maximum, that is either generally the median or the average salary based
upon salary  information and the salary ranges  accumulated from external market
data.  The control point for those  Participants  who are officers and directors
subject  to  the  restrictions  of  Section  16 of the  Exchange  Act  shall  be
determined in the sole  discretion of the  Committee.  Due to  inflationary  and
other factors, the ranges may be periodically adjusted, and therefore the Salary
Range  Control  Point for all salary  ranges shall be determined as of the Grant
Date of an Award.  Salary Range Control Point is no longer applicable to Options
granted after December 31, 1995.

                2.28 "Stock" shall mean the common stock of the Company.

                2.29 "Stock Option  Agreement"  shall mean an agreement  between
the  Company  and a  Participant  receiving  an  Award  pursuant  to this  Plan,
evidencing  the Award,  containing  such  provisions as may be determined in the
sole  discretion  of the  Committee,  which shall be  provided to a  Participant
promptly   after  the  Grant  Date  for  the   Initial   Awards  and  within  an
administratively  reasonable  period of time  following  the end of the calendar
year to which a Performance Based Award pertains.

                2.30 "Target  Award" shall mean the number of Options  available
for grant for each  Participant,  for  Performance  Based Awards  awarded  under
Section 7.2, if all the  Performance  Goals are achieved as more fully described
in Section  7.2a.  Subject to  Section  7.2d,  the number of Options in a Target
Award  shall be  determined  annually  by,  and in the sole  discretion  of, the
Committee  before  the  beginning  of the year,  or  within an  administratively
reasonable  period  of time  after  the  beginning  of the  year,  to which  the
Performance  Based Awards apply.  The number of Options in the Target Award will
vary:  (i) by  Participant,  (ii) by his or her position  with the Company,  and
(iii) from year to year.

                2.31 "TRS Factor" (i.e.,  total return to  shareholders  factor)
shall mean the dollar value  determined on the relevant date specified herein of
a $100  investment  made  five (5)  years  before  the  Grant  Date to which the
indexing applies  pursuant to Section 7.2c.,  assuming all dividends paid during
such five (5) year period are  reinvested.  Such  determinations  shall be based
upon the  performance  graph  disclosed  in the proxy  materials  for the annual
shareholder meeting,  immediately following the Award Date, which graph compares
a five (5) year  cumulative  total return on a $100 investment in Stock, to that
of a comparable  industry index selected by, and in the sole  discretion of, the
Committee.

                                       4
<PAGE>

                                   ARTICLE III
                                 Administration

                Except to the extent certain responsibilities have been reserved
to the Board,  the Plan shall be administered  by the Committee.  Subject to the
provisions of the Plan, the Committee  shall have the sole and exclusive  power,
discretion and authority to:

                a. conclusively  interpret the provisions of the Plan and decide
all questions of fact arising in its application,  including but not limited to,
the right to determine  whether an  individual  satisfies  the  requirements  to
receive an Award,  and the right to  determine  the  application  of the rights,
conditions,  restrictions  and features,  set forth in this Plan document,  with
respect to the Options granted hereunder;

                b. adopt,  amend and rescind rules and  regulations  relating to
this Plan; and

                c.  make  any  other   determinations   it  deems  necessary  or
advisable,  subject  only to those  determinations  which may be reserved to the
Board.

                Notwithstanding  the  foregoing,   the  Committee  may  delegate
ministerial responsibilities hereunder to the Plan Administrator,  including the
decisions  on the initial  claims  procedure  review  pursuant to Section  XIII,
provided that no  delegation  shall be effective to the extent the Committee has
been assigned the sole discretionary responsibility hereunder.

                The Committee  shall cause the Company at the Company's  expense
to take any action  related to the Plan which may be  required or  necessary  to
comply with the provisions of any federal or state law or any regulations issued
thereunder.

                                   ARTICLE IV
                             Shares Subject to Plan

                4.1 Maximum Shares  Available.  The aggregate  maximum number of
Options  granted for the  purchase of Stock under the Plan shall not exceed five
million (i.e.,  the right to receive,  upon exercise,  a maximum of five million
shares of Stock),  subject to  adjustment  pursuant  to Section  4.2 and 4.3. In
determining  the maximum  Options  available  pursuant to this  Section 4.1, the
shares of Stock  counted  shall  include all shares that could be, or could have
been,  purchased  pursuant to the  exercise of all  Options  previously  awarded
(whether or not such Options are vested pursuant to Article VIII), adjusted only
as specified in Section 4.2 and 4.3 below.  Such shares of Stock,  upon exercise
of the  Options,  shall be  either  authorized  and  unissued  shares  or shares
purchased on the open market.  If such Stock is authorized but unissued  shares,
the Committee shall obtain an opinion of counsel that such issuance  pursuant to
this Plan conforms with  applicable  law and regulatory  requirements.  Prior to
purchasing  such shares of Stock on the open market,  the Committee will consult
with counsel to determine  whether such action  conforms with applicable law and
contractual and regulatory requirements.

                4.2 Cancellation of Options.  If, for any reason,  any nonvested
Options  granted  under  the Plan are  canceled  pursuant  to  Section  8.4,  an
equivalent  number of shares of Stock to which such Options  applied shall again
be available for new Options in accordance with the terms hereof. Vested Options
that expire shall not again be available for Options hereunder.


                                       5
<PAGE>

                4.3  Adjustments.  The  aggregate  number  of  shares  of  Stock
available for Options under the Plan pursuant to Section 4.1, the shares subject
to any  Option,  and the  Exercise  Price  per  share  shall be  proportionately
adjusted  for any  increase or decrease in the number of issued  shares of Stock
subsequent to the effective date of an Award  resulting from a stock split-up or
share combination, exchange of shares, recapitalization,  merger, consolidation,
acquisition of property or shares,  reorganization,  liquidation, or the like of
or by the Company.  If the Company  shall be the  surviving  corporation  in any
merger  or  consolidation,  an Option  shall  pertain,  apply and  relate to the
securities  to which a holder of the  number of shares of Stock  subject  to the
Option  would  have been  entitled  after  the  merger  or  consolidation.  Upon
dissolution or liquidation of the Company,  or upon a merger or consolidation in
which the Company is not the surviving  corporation,  or upon the sale of all or
substantially  all of the assets of the Company,  all Options  then  outstanding
under the Plan will be fully vested and  exercisable and all  restrictions  will
immediately   cease,   unless  provisions  are  made  in  connection  with  such
transaction  for  the  continuance  of  the  Plan  and  the  assumption  or  the
substitution  for such Options of new options to purchase stock of the successor
employer  corporation,  or a parent  or  subsidiary  thereof,  with  appropriate
adjustments as to the number and kind of shares and exercise prices.

                                    ARTICLE V
                         Effective Date and Term of Plan

                5.1 Effective  Date.  The Original  Plan was  effective  July 1,
1993. The First Amended and Restated Plan was approved by the  shareholders  and
became  effective  January 1, 1996. The First Amendment to the First Amended and
Restated Plan became  effective for all Performance  Based Awards having a Grant
Date after  December 31, 1996.  The Second  Restatement  was approved and became
effective on March 10, 1998. The technical  corrections  set forth in this Third
Restatement shall also be effective as of March 10, 1998.

                5.2 Term of Plan.  Options  may be  Awarded as  provided  herein
through  December 31, 2000.  The Plan shall continue in effect until all matters
relating to the Options and administration of the Plan have been settled.

                                   ARTICLE VI
                             Eligibility for Awards

                Awards may be made under the Plan only to those Participants who
are employees of the Company on the Grant Date of an Award.

                                   ARTICLE VII
                                Awards of Options

                7.1 Initial  Awards.  Initial  Awards shall not be granted after
July 1, 1994,  and those  granted  before July 1, 1994,  shall be subject to the
following terms and conditions. Initial Awards were awarded on, and have a Grant
Date of, July 1, 1993, and were determined by dividing  fifteen percent (15%) of
a Participant's  Salary Range Control Point by the Option Price,  all determined
as of the Grant Date of the Award.  Any employee who became a Participant  after
July 1, 1993,  but before July 1, 1994,  received an Initial  Award on, and such
Awards have a Grant Date of, July 1, 1994,  equal to the Options  determined  by
dividing  seven and one-half  percent (7.5%) of the  Participant's  Salary Range
Control  Point by the Option Price,  all  determined as of the Grant Date of the
Award.  There shall be no Award of an Option to purchase a  fractional  share of
Stock.


                                       6
<PAGE>

                7.2  Performance  Based Awards With Grant Dates Prior to January
1, 1998.  Performance  Based  Awards  with Grant  Dates prior to January 1, 1998
shall be granted on an annual basis,  and shall have a Grant Date as of December
31 of each  calendar  year and shall be based upon  satisfactory  completion  of
Performance  Goals.  The Original  Plan  provided  for only two (2)  Performance
Goals.  The Plan, as first  restated,  provides for two (2) or more  Performance
Goals.  The  goals,  shall be  established  each year by the  Committee,  in its
absolute and sole discretion,  and  communicated to the Participants  before the
commencement  of the calendar  year to which such Awards  pertain,  or within an
administratively  reasonable  period of time  thereafter  as  determined  by the
Committee.  After the  goals for a  specific  year  have  been  established  and
communicated  to  the  Participants,  any  such  goals  may  be  revised  by the
Committee;   provided,   however,  that  unless  such  revisions  are  expressly
contemplated in the goals as formulated by the Committee,  such revisions may be
made  only  in  the  following  circumstances  in  the  sole  discretion  of the
Committee:  (i) any such revision(s) shall be made only to reflect the impact on
the established  goals of material changes in circumstances  not foreseen at the
time the goals were established;  and (ii) any such revision(s) shall take place
not later than the delivery of Stock Option  Agreements to Participants  for the
relevant year pursuant to Section 7.2e.  The Committee  shall also establish the
criteria to be used in  determining  whether the goals have been  achieved.  The
Performance  Based  Awards may be  partially  or fully  Awarded,  based upon the
criteria, and the determination of the Committee.  If less than all of the goals
have been  achieved,  Partial Awards may be made at year end as set forth in 7.2
b. below.  The number of Options granted pursuant to the Target Award or Partial
Award  as  described  below  shall  be  further  adjusted  by the  indexing  and
adjustments  provided in Section 7.2c. and d. below.  There shall be no Award of
an Option to purchase a fractional share of Stock.

                a. Target Award. The Target Award of Options shall be granted if
all Performance Goals are fully achieved.

                b. Partial Award. If the Committee determines that less than all
of the Performance Goals have been achieved,  the Award of Options shall consist
of the sum of the Options granted in (i) and (ii) below:

                         (i) Fully Achieved Performance Goals: The Partial Award
for fully  achieved  Performance  Goals shall be determined by  multiplying  the
Target Award by the percentage determined by dividing one hundred percent (100%)
by the total number of Performance Goals established by the Committee, times the
number of Performance Goals fully achieved.

                         (ii) Partially  Achieved  Performance  Goals: Under the
Original Plan, Officers could not receive an Award based upon partially achieved
Performance  Goals (Section  7.2b.(ii));  only  non-Officer  participants  could
receive Awards for partially achieved  Performance  Goals.  Effective for Awards
after  December  31,  1995,   Officers  may  receive  Awards,   like  all  other
participants,  based upon partially achieved  Performance Goals pursuant to this
Section 7.2b.(ii).

                If the Committee  determines that any of the  Performance  Goals
were only  partially  achieved,  the Award of Options for a  partially  achieved
Performance  Goal shall be determined on the basis of guidelines  established by
the Committee.  Unless  otherwise  determined by the  Committee,  the guidelines
shall be  communicated  at the same time it  establishes  and  communicates  the
Performance Goals. The guidelines may be changed from year to year, and may vary
between  job  classifications,  as  determined  in the  sole  discretion  of the
Committee.  The  Committee  also  has the  sole  discretion  to  determine  that
specified  Performance  Goals for  specified job  classifications  shall only be
awarded if fully achieved.


                                       7
<PAGE>

                c. Indexing of  Performance  Based Awards.  Notwithstanding  any
provision  herein to the  contrary,  all  Performance  Based  Awards  determined
pursuant to Section 7.2a. and 7.2b. above shall be further  adjusted  (increased
or  decreased) by a factor based upon the  comparison  of the Stock  performance
versus the  comparable  industry  index that is in effect for the calendar year,
pursuant to the  Company's  proxy  statement  for the next  shareholder  meeting
following the end of such calendar year to which such Awards apply. The indexing
shall result in a percentage  comparison between the Stock versus the comparable
industry index,  resulting in an index  percentage  (either greater or less than
100%) which shall then be  multiplied by  Performance  Based Awards to determine
the  number of  Options  awarded  pursuant  to  Section  7.2a.  and b. The index
percentage  shall be  determined  by dividing (i) by (ii) wherein (i) equals the
percentage  determined  by dividing  the TRS Factor of the Company at the end of
calendar  year of the Award by the TRS Factor at the  beginning  of the calendar
year, and (ii) shall equal the percentage  determined by dividing the TRS Factor
at the end of the calendar  year of the Award by the TRS Factor at the beginning
of such calendar year for the comparable  industry  index.  The calendar year in
which such index percentage is determined (i.e.,  determination of the beginning
and end of the year TRS Factor)  shall be the same calendar year as to which the
Performance Goal(s) giving rise to the Option pertain.

                d. Adjustments Due to Promotions or Demotions.  In the event (i)
a Participant  is either  promoted or demoted  during a calendar year or (ii) an
employee first becomes a Participant during a calendar year, pursuant to Section
2.20,  following  the  effective  date of this Plan,  the Target  Award for such
calendar year shall be increased or decreased based upon the promotion, demotion
or  initial  participation  in the Plan.  Decisions  regarding  the  adjustments
pursuant to this Section 7.2d. for the President  shall be made by the Committee
in its sole discretion. Adjustments pursuant to this Section 7.2d. for all other
employees shall be made by the President, in his or her sole discretion.

                e.  Delivery of Stock Option  Agreements.  The  Committee  shall
cause a Stock Option Agreement evidencing the Options Awarded to be delivered to
a Participant receiving the Award in accordance with Section 2.29.

                f. Award Approvals. All Awards shall be approved by the Board or
by the Committee.

                7.3  Performance  Based  Awards  With  Grant  Dates  on or After
January 1, 1998.  Performance  Based Awards with Grant Dates on or after January
1,  1998  shall be  determined  in the sole  discretion  of the  Committee.  The
Committee shall in its sole and absolute  discretion  declare annually the level
of Options to be granted,  based on performance data presented by the President.
The President  shall establish  criteria for the performance  data to be used in
recommending  Performance  Based Awards to the  Committee.  The Committee  shall
cause a Stock Option Agreement evidencing the Options Awarded to be delivered to
a Participant receiving the Award in accordance with Section 2.29.

                                  ARTICLE VIII
                                     Vesting

                8.1  Initial  Awards.  Subject  to the  exceptions  set forth in
Section 8.3, the Initial Awards shall vest on June 30, 1996, if the  Participant
remains in the  continuous  employ of the Company from the Grant Date until June
30, 1996.

                8.2  Performance  Based Awards.  Subject to the  exceptions  set
forth in  Section  8.3,  the  Performance  Based  Awards  having a Grant Date of
December 31, 1993,  1994,  and 1995 shall likewise vest on June 30, 1996, if the
Participant  remains in the continuous employ of the Company from the Grant Date
of such Awards until June 30, 1996.  Subject to the  modifications  set forth in
Section 8.3, all subsequent Performance Based Awards, granted after December 31,
1995,  shall  vest  three (3) years  from the Grant  Date of the  Award,  if the
Participant  remains in the continuous employ of the Company from the Grant Date
to the third anniversary date of such Grant Date.


                                       8
<PAGE>

                8.3  Vesting  Due to Death,  Disability,  Retirement,  Change in
Control or Involuntary Termination.

                     a.  For  Options  granted  and/or  approved  on or prior to
February 9, 1998, upon (i) the death or Disability of the Participant,  (ii) the
Participant being involuntarily terminated by the Company for reasons other than
Cause,  (iii) a Change in Control of the  Company,  or (iv) events  resulting in
full vesting as otherwise  described in Section 4.3, all nonvested Options shall
be 100% vested.

                     b. For Options granted and/or approved on February 9, 1998,
in addition to the events specified in Section 8.3a.  above,  upon Retirement of
the Participant, all nonvested Options shall be 100% vested.

                     c. For Options granted and approved after February 9, 1998,
upon (i) the death,  Disability or Retirement of the Participant,  (ii) a Change
in  Control  of the  Company,  or (iii)  events  resulting  in full  vesting  as
otherwise described in Section 4.3, all nonvested Options shall be 100% vested.

                8.4  Cancellation  of Non-vested  Options.  For Options  granted
and/or  approved  on or prior to  February  9,  1998,  upon the  involuntary  or
voluntary  termination  of employment  of a  Participant  for reasons other than
those specified in Sections 8.3a. and 8.3b.,  all nonvested  Options  previously
Awarded to such Participant shall be canceled.  For options granted and approved
after  February  9, 1998,  upon the  involuntary  or  voluntary  termination  of
employment of a Participant  for reasons other than,  those specified in Section
8.3c., all nonvested  Options  previously  Awarded to such Participant  shall be
canceled.

                                   ARTICLE IX
                               Exercise of Options

                9.1  Timing of Exercise.

                     a. Vested  Options  with Grant Dates prior to December  31,
1997,  shall be  exercisable at any time  following the vesting  thereof,  on or
before the  earlier of (i) three (3) months  following  a  Participant's  death,
Disability,  Retirement, voluntary or involuntary termination of employment with
the Company (regardless of the reason) or a Change in Control of the Company and
(ii) the tenth anniversary date of the Grant Date of the Options.

                     b. Vested Options with Grant Dates on or after December 31,
1997,  shall be  exercisable at any time  following the vesting  thereof,  on or
before the earlier of (i) three (3) months  following a Participant's  voluntary
or involuntary  termination of employment  with the Company (for Cause) and (ii)
the tenth anniversary date of the Grant Date of the Options.

                     c. Vested Options with Grant Dates on or after December 31,
1997,  shall be  exercisable at any time  following the vesting  thereof,  on or
before  the  earlier  of (i) five (5) years  following  a  Participant's  death,
Disability,  Retirement,  involuntary  termination  for other than  Cause,  or a
Change in  Control of the  Company  and (ii) the tenth  anniversary  date of the
Grant Date of the Options.


                                       9
<PAGE>

                9.2 Time and Method of Payment.  The Options  shall be exercised
by the Participant  giving written notice to the Company of his or her intent to
exercise  Options,  along  with the  tendering  of cash in full  payment  of the
Exercise Price of the Options being exercised,  times the number of such Options
being exercised. Alternatively, in lieu of cash, the Exercise Price may be paid,
in full or in  part  by the  Participant,  by  assignment  and  delivery  to the
Company,  of either Options  (other than those being  exercised) or Stock of the
Company owned by the Participant. The amount credited against the Exercise Price
for Stock being  assigned  and  delivered  to the  Company  shall equal the Fair
Market  Value of the  Stock  times  the  number of  shares  being  assigned  and
delivered.  For the Options  being  assigned and  delivered to the Company,  the
credit  amount shall equal the Fair Market Value of the Stock on the date of the
transfer,  less the Exercise Price of such Options being assigned and delivered,
times the number of such Options.

                9.3 Exercise  Following a Participant's  Death. If a Participant
dies,  whether or not the  Participant is an employee of the Company at the date
of such death,  without having fully  exercised his or her vested  Options,  the
personal   representative   or  the  person  receiving  such  Options  from  the
Participant  or his or her estate  shall have the right to exercise  the Options
pursuant  to the timing set forth in Section  9.1 and the method of payment  set
forth in Section 9.2.

                9.4 Delivery of Shares.  Within an  administratively  reasonable
period of time,  after the  exercise  of an Option,  and the payment of the full
Exercise Price,  and the  satisfaction of all withholding  obligations  incurred
pursuant to such exercise,  the  Participant  shall receive a stock  certificate
evidencing his or her ownership of such Stock. A Participant  shall have none of
the rights of a shareholder with respect to Options until the record date of the
stock  purchase.  No  adjustment  will be made for dividends or other rights for
which the record date is prior to the date such Stock  certificate  is issued in
the Participant's name.

                9.5 Cash Award.  Notwithstanding any other contrary provision in
this Plan, and subject to the provisions of applicable law and to any conditions
the  Committee  may  determine  to be  necessary  in  order to  comply  with all
applicable  conditions of Rule 16b-3 or its  successors  under the Exchange Act,
the Committee,  in its sole discretion,  may elect to settle all or a portion of
an Option  following the exercise  thereof by a Participant,  in cash in lieu of
issuing  shares of Stock.  Such cash  shall be  determined  based  upon the Fair
Market Value of the Stock on the date such Option is exercised less the Exercise
Price.

                9.6 Holding  Period.  If necessary to meet the conditions of SEC
Rule 16b-3,  shares of Stock  obtained  upon the exercise of any Option  granted
under the Plan may, in any event,  not be sold by persons  subject to Section 16
of the Exchange  Act until six (6) months after the delivery to the  Participant
of the Stock Option Agreement.

                                    ARTICLE X
                            Termination or Amendment

                10.1 Terminations and Amendments. The Board may amend, terminate
or suspend the Plan at any time, in its sole and absolute discretion;  provided,
however,  that no such amendment or termination  shall adversely affect an Award
previously granted without the consent of the Participant holding such Option.

                10.2 Other Restrictions on Amendments.  If required by law or if
necessary to satisfy the  conditions  for  exemption  from Section  16(b) of the
Exchange Act pursuant to Rule 16b-3 promulgated thereunder:


                                       10
<PAGE>

                     a. No  amendment  that would  change the  amount,  price or
timing of the  Options,  other than to comport  with the  changes in the Code or
ERISA, or the rules and regulations promulgated  thereunder,  shall be made more
than once every six (6) months;

                     b. No  amendment  shall be made without the approval of the
Company's stockholders (as required by Rule 16b-3) that would:

                         (i)  increase  the  maximum  number  of shares of Stock
available for an Award of Options under Article IV hereof;

                         (ii) modify the  requirements  as to eligibility for an
Award under the Plan; or

                         (iii)  otherwise   materially   increase  the  benefits
accruing to Participants under the Plan.

                The approval of the Company's  stockholders  for such amendments
shall be solicited in a manner which conforms to the rules and regulations under
Section 14(a) of the Exchange Act.

                                   ARTICLE XI
                           Nonexclusivity of the Plan

                Nothing contained herein is intended to amend, modify or rescind
any  previously  approved  compensation  plan  or  program  entered  into by the
Company. This Plan shall be in addition to any other and all other Company plans
or programs.  Neither the adoption of this Plan by the Board nor the  submission
of the Plan to the  Company's  stockholders  for approval  shall be construed as
creating any limitations on the power or authority of the Committee or the Board
to adopt such other additional incentives or other compensation  arrangements as
may be deemed necessary or desirable.

                                   ARTICLE XII
                                  Miscellaneous

                12.1  Withholding  Taxes.  The  Company  shall have the right to
deduct from any payments made by the Company to the  Participants,  any federal,
state or local  taxes of any kind as are  required  by law to be  withheld  with
respect to the  exercise  of Options  granted  hereunder,  or to take such other
action  as may be  necessary  in the  opinion  of the  Company  to  satisfy  all
obligations for withholding  and payment of such taxes,  including,  in its sole
discretion,  and  subject  to  the  provisions  of  applicable  law  and  to any
conditions  the  Committee may determine to be necessary in order to comply with
all  applicable  conditions of Rule 16b-3 or its  successors  under the Exchange
Act,  to  permit  the  Participant  to  satisfy,  in whole  or in part,  any tax
withholding  obligation  which  may arise in  connection  with the  exercise  of
Options by electing to have the Company  liquidate  existing options or withhold
shares of Stock  having a Fair Market  Value of the Stock equal to the amount of
the income tax withholding.

                12.2  Compliance  with  Exchange  Act.  With  respect to persons
subject to  Section 16 of the  Exchange  Act,  transactions  under this Plan are
intended  to  comply  with  all  applicable  conditions  of  Rule  16b-3  or its
successors  under the Exchange  Act. To the extent any  provision of the Plan or
action by the Board, Committee, President, or the Plan Administrator fails to so
comply,  it shall be deemed null and void,  to the extent  permitted  by law and
deemed advisable by the Committee.


                                       11
<PAGE>

                12.3 Plan Expenses.  All expenses incurred in administering this
Plan shall be borne by the Company.

                12.4 Headings. The headings of the Articles and Sections in this
Plan  are  for  convenience  of  reference  only  and  are  not  meant  to be of
substantive  significance and shall not add nor detract from the meaning of such
Article or Section.

                12.5 Gender and Use of Singular/Plural. The use of the masculine
gender  herein  shall also  include  within its  meaning the  feminine,  and the
singular  shall  include the plural,  and the plural shall include the singular,
unless the context clearly indicates to the contrary.

                12.6  Applicable  Law. The place of  administration  of the Plan
shall be  conclusively  deemed to be within  the  State of New  Mexico,  and the
validity,  construction,  interpretation and administration  with respect to the
Plan and its rules and  regulations  and the rights of any and all  Participants
having or claiming to have an interest  hereunder shall be governed first by the
provisions  of ERISA or to the extent not  preempted by ERISA,  exclusively  and
solely in accordance with the laws of the State of New Mexico.

                12.7 Non-Assignability.  Options shall not be transferable other
than  by  will  or by the  laws  of  descent  and  distribution,  and  during  a
Participant's  lifetime shall be exercisable only by the Participant.  Except as
provided in the immediately  preceding  sentence,  neither a Participant nor any
person  taking on behalf of a  Participant  may  anticipate,  assign or alienate
(either  at law or in  equity)  any  benefit  provided  under  the  Plan and the
Committee shall not recognize any such  anticipation,  assignment or alienation.
Furthermore, a benefit under the Plan is not subject to attachment, garnishment,
levy, execution or any other legal or equitable process.

                12.8 No  Obligations  to Exercise  Options.  The  granting of an
Option shall impose no obligation upon the Participant to exercise such Option.

                12.9 Agreement and  Representation of Employees.  As a condition
to the exercise of any portion of an Option,  the Company may require the person
exercising such Option to represent at the time of such exercise that any shares
of stock acquired at exercise are being  acquired only for  investment  purposes
and without any present intention to sell or distribute such shares,  if, in the
opinion of counsel for the Company,  such a representation is required under the
Exchange Act or any other applicable law, regulation or rule of any governmental
agency.

                12.10 Entire Plan. This Plan contains the entire provisions with
respect to the matters  contemplated  herein and  supersedes  all prior plans or
understandings among the parties hereto relating to an Award.

                12.11  Employment  Agreement.  Notwithstanding  anything  to the
contrary  herein  contained  the Plan,  (i) the  execution of the Plan shall not
create an express or implied contract of employment for a specified term between
the Participant and the Company and (ii) unless otherwise expressed or provided,
in writing, by an authorized officer,  the employment  relationship  between the
Participant  and the Company  shall be defined as  "employment  at will" wherein
either  party,  without prior notice,  may  terminate the  relationship  with or
without cause.

                12.12 Service of Process.  The Secretary of the Company shall be
an agent for Service of Process for matters relating to this Plan.


                                       12
<PAGE>

                12.13  Validity.  The  invalidity  or  unenforceability  of  any
provision  of this Plan shall not affect the validity or  enforceability  of any
other provision of this Plan which shall remain in full force and effect.

                12.14 Regulatory Approvals and Listing. The Company shall not be
required to issue any  certificate  for shares of Common Stock upon the exercise
of an Option granted under the Plan prior to:

                (a)  the obtaining of any approval or ruling from the Securities
                     and Exchange  Commission,  the Internal  Revenue Service or
                     any other governmental  agency which the Committee,  in its
                     sole  discretion,   shall  determine  to  be  necessary  or
                     advisable;

                (b)  the listing of such  shares on any stock  exchange on which
                     the Stock may then be listed; or

                (c)  the completion of any  registration or other  qualification
                     of such shares under any federal or state laws,  rulings or
                     regulations of any  governmental  body which the Committee,
                     in its sole discretion,  shall determine to be necessary or
                     advisable.


                                  ARTICLE XIII
                                Claims Procedure

                The  Committee or its  designee,  within  ninety (90) days after
receipt  of a  written  notice  of a claim  hereunder,  shall  render a  written
decision on the claim. If there is an adverse  determination with respect to the
claim, either in whole or in part, the decision shall include:

                         (i) The  specific  reason or  reasons  for the  adverse
determination;

                         (ii) Any indication of the specific Plan  provisions on
which the adverse determination is based;

                         (iii)  A  description  of any  additional  material  or
information  necessary for the claimant to perfect the claim and any explanation
of why such material or information is necessary; and

                         (iv) An  explanation  of the Plan's  appeal  procedure,
indicating that the appeal of the adverse  determination must be made in writing
addressed  to the  Committee,  and  received  within  sixty  (60) days after the
receipt by the claimant of the  Committee's  or its designee's  written  adverse
determination.  Failure to  protect,  perfect  and appeal  within the  sixty-day
period shall make the adverse determination conclusive.

                If the claimant  should appeal to the  Committee,  he or she, or
his or her duly authorized representative,  must do so in writing and may submit
in writing whatever issues and comments he or she, or his or her duly authorized
representative, feels are pertinent. The claimant, or his or her duly authorized
representative,  may review pertinent Plan documents. The Committee shall render
a written  decision  on the  questions  raised in the  appeal,  setting  forth a
specific reason for its decision,  including reference to the Plan's provisions,
within sixty (60) days after  receipt of the request for review  unless  special
circumstances  (such as a hearing)  would make a rendering of a decision  within
the sixty (60) day limit unfeasible,  but in no event shall the Committee render
a  decision  respecting  an appeal of an  adverse  determination  later than one
hundred twenty (120) days after its receipt of a request for review.


                                       13
<PAGE>

                Any adverse determination or decision on an appeal of an adverse
determination made by the Committee (or its designee) pursuant to the Plan shall
be stated in writing  and such  notice  shall be written in a manner that may be
understood without legal or actuarial counsel.

                IN WITNESS  WHEREOF,  the Company has caused this Third Restated
and Amended Public Service  Company of New Mexico  Performance  Stock Plan to be
executed, and to be effective as set forth in Section 5.1.


                                     PUBLIC SERVICE COMPANY
                                     OF NEW MEXICO


                                     By
                                         --------------------------
                                            BENJAMIN F. MONTOYA,
                                             President and CEO
Doc. No. 54916









                                       14
<PAGE>

                                     ARTHUR
                                    ANDERSEN





                                            -------------------------------
April 28, 1998                              Arthur Andersen LLP
                                            -------------------------------
                                            Suite 400
                                            6501 Americas Parkway NE
                                            Albuquerque, NM 87110-5372
                                            (505) 889-4700


Public Service Company of New Mexico:

We are aware that  Public  Service  Company of New  Mexico has  incorporated  by
reference in its Registration Statement Nos. 33-65418,  333-03303, and 333-03289
its Form 10-Q for the quarter  ended March 31,  1998 which  includes  our report
dated April 28,  1998,  covering the  unaudited  interim  financial  information
contained therein.  Pursuant to Regulation C of the Securities Act of 1933, that
report  is not  considered  a part of the  registration  statement  prepared  or
certified  by our firm or a report  prepared or certified by our firm within the
meaning of Sections 7 and 11 of the Act.

Very truly yours,



Arthur Andersen LLP

<PAGE>

<TABLE> <S> <C>

<ARTICLE> UT
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
Company's  Consolidated  Statement of Earnings,  Consolidated Balance Sheets and
Consolidated Statement of Cash Flows for the period ended March 31, 1998 and
is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK>     0000081023
<NAME> Public Service Company of New Mexico
<MULTIPLIER> 1,000
<CURRENCY> US DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               Mar-31-1998
<EXCHANGE-RATE>                                      1
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,573,240
<OTHER-PROPERTY-AND-INVEST>                    309,250
<TOTAL-CURRENT-ASSETS>                         246,377
<TOTAL-DEFERRED-CHARGES>                       152,963
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               2,281,830
<COMMON>                                       208,870
<CAPITAL-SURPLUS-PAID-IN>                      471,341
<RETAINED-EARNINGS>                            141,901
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 822,112
                                0
                                     12,800
<LONG-TERM-DEBT-NET>                           574,344
<SHORT-TERM-NOTES>                             243,860
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                        0
                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 628,714
<TOT-CAPITALIZATION-AND-LIAB>                2,281,830
<GROSS-OPERATING-REVENUE>                      329,764
<INCOME-TAX-EXPENSE>                            12,680
<OTHER-OPERATING-EXPENSES>                     286,589
<TOTAL-OPERATING-EXPENSES>                     297,485
<OPERATING-INCOME-LOSS>                         32,279
<OTHER-INCOME-NET>                               2,722
<INCOME-BEFORE-INTEREST-EXPEN>                  35,001
<TOTAL-INTEREST-EXPENSE>                        13,787
<NET-INCOME>                                    21,214
                        147
<EARNINGS-AVAILABLE-FOR-COMM>                   21,067
<COMMON-STOCK-DIVIDENDS>                         7,102
<TOTAL-INTEREST-ON-BONDS>                       11,386
<CASH-FLOW-OPERATIONS>                          48,348
<EPS-PRIMARY>                                     0.50
<EPS-DILUTED>                                     0.50
        



</TABLE>


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