FORM 10-Q
                       Securities and Exchange Commission
                             Washington, D.C. 20549

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

For the quarterly period ended      SEPTEMBER 30, 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    1-4473
                       -----------

                         ARIZONA PUBLIC SERVICE COMPANY
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

           ARIZONA                                               86-0011170
- -------------------------------                              -------------------
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

400 NORTH FIFTH STREET, P.O. BOX 53999, PHOENIX, ARIZONA         85072-3999
- --------------------------------------------------------         ----------
        (Address of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code:      (602) 250-1000

- --------------------------------------------------------------------------------
              (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 [ ]

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date.

               Number of shares of common stock, $2.50 par value,
                 outstanding as of November 13, 1998: 71,264,947

                                    GLOSSARY

ACC - Arizona Corporation Commission

ACC Staff - Staff of the Arizona Corporation Commission

Company - Arizona Public Service Company

EITF - Emerging Issues Task Force

EITF 97-4 - Emerging  Issues Task Force  Issue No.  97-4,  "Deregulation  of the
Pricing of Electricity ___ Issues Related to the Applications of FASB Statements
No. 71, Accounting for the Effects of Certain Types of Regulation,  and No. 101,
Regulated  Enterprises ___ Accounting for the  Discontinuation of Application of
FASB Statement No. 71"

FERC - Federal Energy Regulatory Commission

ITC - Investment tax credit

1997 10-K - Arizona  Public  Service  Company Annual Report on Form 10-K for the
fiscal year ended December 31, 1997

Palo Verde - Palo Verde Nuclear Generating Station

Pinnacle West - Pinnacle West Capital Corporation

Power Coordination Agreement - 1955 agreement between the Company and Salt River
Project that provides for certain electric system and power sales

SFAS No. 71 - Statement of Financial  Accounting  Standards No. 71,  "Accounting
for the Effects of Certain Types of Regulation"

SFAS No. 131 - Statement of Financial Accounting Standards No. 131, "Disclosures
about Segments of an Enterprise and Related Information"

SFAS No. 133 - Statement of Financial  Accounting Standards No. 133, "Accounting
for Derivative Instruments and Hedging Activities"

Salt  River  Project - Salt River  Project  Agricultural  Improvement  and Power
District

TEP - Tucson Electric Power Company

Territorial  Agreement  - 1955  agreement  between  the  Company  and Salt River
Project that has provided  exclusive  retail  service  territories in Arizona as
against each other

                                      -2-

                         PART I - FINANCIAL INFORMATION
                         ------------------------------

ITEM 1. FINANCIAL STATEMENTS

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                              Three Months
                                                           Ended September 30,
                                                         -----------------------
                                                            1998         1997
                                                         ---------    ---------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ..........................   $ 740,734    $ 632,821
                                                         ---------    ---------
FUEL EXPENSES:

  Fuel for electric generation .......................      74,112       48,379
  Purchased power ....................................     178,587      110,151
                                                         ---------    ---------
     Total ...........................................     252,699      158,530
                                                         ---------    ---------
OPERATING REVENUES LESS FUEL EXPENSES ................     488,035      474,291
                                                         ---------    ---------
OTHER OPERATING EXPENSES:

  Operations and maintenance excluding
    fuel expenses ....................................     110,259      110,102
  Depreciation and amortization ......................      94,284       90,874
  Income taxes .......................................      98,411       92,195
  Other taxes ........................................      30,002       30,228
                                                         ---------    ---------
     Total ...........................................     332,956      323,399
                                                         ---------    ---------
OPERATING INCOME .....................................     155,079      150,892
                                                         ---------    ---------
OTHER INCOME (DEDUCTIONS):

  Other - net ........................................      (2,120)         445
  Income taxes .......................................      14,271       14,052
                                                         ---------    ---------
     Total ...........................................      12,151       14,497
                                                         ---------    ---------
INCOME BEFORE INTEREST DEDUCTIONS ....................     167,230      165,389
                                                         ---------    ---------
INTEREST DEDUCTIONS:

  Interest on long-term debt .........................      33,906       35,699
  Interest on short-term borrowings ..................       2,359        2,163
  Debt discount, premium and expense .................       1,878        1,825
  Capitalized interest ...............................      (4,106)      (3,997)
                                                         ---------    ---------
     Total ...........................................      34,037       35,690
                                                         ---------    ---------

NET INCOME ...........................................     133,193      129,699
PREFERRED STOCK DIVIDEND REQUIREMENTS ................       2,347        2,984
                                                         ---------    ---------
EARNINGS FOR COMMON STOCK ............................   $ 130,846    $ 126,715
                                                         =========    =========

See Notes to Condensed Financial Statements.

                                      -3-

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                               Nine Months
                                                           Ended September 30,
                                                       -------------------------
                                                           1998         1997
                                                       -----------   ----------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ........................   $1,562,872    $1,470,593
                                                       ----------    ----------
FUEL EXPENSES:
  Fuel for electric generation .....................      174,874       155,127
  Purchased power ..................................      247,327       188,182
                                                       ----------    ----------
     Total .........................................      422,201       343,309
                                                       ----------    ----------
OPERATING REVENUES LESS FUEL EXPENSES ..............    1,140,671     1,127,284
                                                       ----------    ----------
OTHER OPERATING EXPENSES:
  Operations and maintenance excluding
    fuel expenses...................................      309,388       287,280
  Depreciation and amortization ....................      279,097       274,027
  Income taxes .....................................      162,808       164,066
  Other taxes ......................................       89,459        89,874
                                                       ----------    ----------
     Total .........................................      840,752       815,247
                                                       ----------    ----------
OPERATING INCOME ...................................      299,919       312,037
                                                       ----------    ----------
OTHER INCOME (DEDUCTIONS):
  Other - net ......................................       (7,035)       (2,674)
  Income taxes .....................................       26,214        24,942
                                                       ----------    ----------
     Total .........................................       19,179        22,268
                                                       ----------    ----------
INCOME BEFORE INTEREST DEDUCTIONS ..................      319,098       334,305
                                                       ----------    ----------
INTEREST DEDUCTIONS:
  Interest on long-term debt .......................      103,249       105,390
  Interest on short-term borrowings ................        5,419         7,586
  Debt discount, premium and expense ...............        5,745         5,883
  Capitalized interest .............................      (12,627)      (12,391)
                                                       ----------    ----------
     Total .........................................      101,786       106,468
                                                       ----------    ----------

NET INCOME .........................................      217,312       227,837
PREFERRED STOCK DIVIDEND REQUIREMENTS ..............        7,660         9,805
                                                       ----------    ----------
EARNINGS FOR COMMON STOCK ..........................   $  209,652    $  218,032
                                                       ==========    ==========

See Notes to Condensed Financial Statements

                                      -4-

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                              Twelve Months
                                                           Ended September 30,
                                                       -------------------------
                                                           1998         1997
                                                       ----------    ----------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ........................   $1,970,832    $1,850,047
                                                       ----------    ----------
FUEL EXPENSES:
  Fuel for electric generation .....................      221,089       217,654
  Purchased power ..................................      294,430       207,115
                                                       ----------    ----------
     Total .........................................      515,519       424,769
                                                       ----------    ----------
OPERATING REVENUES LESS FUEL EXPENSES ..............    1,455,313     1,425,278
                                                       ----------    ----------
OTHER OPERATING EXPENSES:
  Operations and maintenance excluding
    fuel expenses...................................      421,542       429,569
  Depreciation and amortization ....................      370,741       363,625
  Income taxes .....................................      183,479       170,562
  Other taxes ......................................      119,844       117,084
                                                       ----------    ----------
     Total .........................................    1,095,606     1,080,840
                                                       ----------    ----------
OPERATING INCOME ...................................      359,707       344,438
                                                       ----------    ----------
OTHER INCOME (DEDUCTIONS):
  AFUDC - equity ...................................         --            (411)
  Other - net ......................................      (14,188)      (13,188)
  Income taxes .....................................       32,685        40,383
                                                       ----------    ----------
     Total .........................................       18,497        26,784
                                                       ----------    ----------
INCOME BEFORE INTEREST DEDUCTIONS ..................      378,204       371,222
                                                       ----------    ----------
INTEREST DEDUCTIONS:
  Interest on long-term debt .......................      138,790       142,196
  Interest on short-term borrowings ................        7,237         8,811
  Debt discount, premium and expense ...............        7,653         7,915
  Capitalized interest .............................      (16,444)      (14,478)
                                                       ----------    ----------
     Total .........................................      137,236       144,444
                                                       ----------    ----------

NET INCOME .........................................      240,968       226,778
PREFERRED STOCK DIVIDEND REQUIREMENTS ..............       10,658        13,941
                                                       ----------    ----------
EARNINGS FOR COMMON STOCK ..........................   $  230,310    $  212,837
                                                       ==========    ==========

See Notes to Condensed Financial Statements.

                                      -5-

                         ARIZONA PUBLIC SERVICE COMPANY
                            CONDENSED BALANCE SHEETS
                            ------------------------

                                     ASSETS
                                   (Unaudited)

                                                    September 30,  December 31,
                                                        1998          1997
                                                    ------------   -----------
                                                      (Thousands of Dollars)
UTILITY PLANT:
Electric plant in service and held for
    future use....................................  $ 7,179,571    $ 7,009,059
Less accumulated depreciation and amortization ...    2,759,425      2,620,607
                                                    -----------    -----------
   Total .........................................    4,420,146      4,388,452
Construction work in progress ....................      211,758        237,492
Nuclear fuel, net of amortization ................       55,771         51,624
                                                    -----------    -----------
   Utility plant - net ...........................    4,687,675      4,677,568
                                                    -----------    -----------

INVESTMENTS AND OTHER ASSETS .....................      186,342        164,906
                                                    -----------    -----------

CURRENT ASSETS:
Cash and cash equivalents ........................       17,687         12,552
Accounts receivable:
   Service customers .............................      238,905        141,022
   Other .........................................       52,349         31,313
   Allowance for doubtful accounts ...............       (1,414)        (1,338)
Accrued utility revenues .........................       86,153         58,559
Materials and supplies, at average cost ..........       71,896         70,634
Fossil fuel, at average cost .....................       17,303          9,621
Deferred income taxes ............................        3,496          3,496
Other ............................................       27,632         24,529
                                                    -----------    -----------
   Total current assets ..........................      514,007        350,388
                                                    -----------    -----------

DEFERRED DEBITS:
Regulatory asset for income taxes ................      414,491        458,369
Rate synchronization cost deferral ...............      317,463        358,871
Unamortized costs of reacquired debt .............       56,409         63,501
Unamortized debt issue costs .....................       15,142         15,303
Other ............................................      260,904        242,236
                                                    -----------    -----------
   Total deferred debits .........................    1,064,409      1,138,280
                                                    -----------    -----------

   TOTAL .........................................  $ 6,452,433    $ 6,331,142
                                                    ===========    ===========

See Notes to Condensed Financial Statements.

                                      -6-

                         ARIZONA PUBLIC SERVICE COMPANY
                            CONDENSED BALANCE SHEETS
                            ------------------------

                                   LIABILITIES
                                   (Unaudited)


                                                   September 30,  December 31,
                                                       1998          1997
                                                   -----------    -----------
                                                      (Thousands of Dollars)
CAPITALIZATION:
Common stock ....................................  $   178,162   $   178,162
Additional paid-in capital ......................    1,143,617     1,142,364
Retained earnings ...............................      610,535       528,798
                                                   -----------   -----------
   Common stock equity ..........................    1,932,314     1,849,324
Non-redeemable preferred stock ..................      123,795       142,051
Redeemable preferred stock ......................        9,401        29,110
Long-term debt less current maturities ..........    1,871,949     1,953,162
                                                   -----------   -----------
   Total capitalization .........................    3,937,459     3,973,647
                                                   -----------   -----------
CURRENT LIABILITIES:
Commercial paper ................................      115,350       130,750
Current maturities of long-term debt ............      154,220       104,068
Accounts payable ................................      170,202       107,423
Accrued taxes ...................................      208,595        85,886
Accrued interest ................................       26,489        31,660
Customer deposits ...............................       28,841        29,116
Other ...........................................       36,394        19,588
                                                   -----------   -----------
   Total current liabilities ....................      740,091       508,491
                                                   -----------   -----------
DEFERRED CREDITS AND OTHER:
Deferred income taxes ...........................    1,291,258     1,345,177
Deferred investment tax credit ..................       36,724        60,093
Unamortized gain - sale of utility plant ........       78,931        82,363
Customer advances for construction ..............       29,489        29,294
Other ...........................................      338,481       332,077
                                                   -----------   -----------
   Total deferred credits and other .............    1,774,883     1,849,004
                                                   -----------   -----------
COMMITMENTS AND CONTINGENCIES (Notes 5 and 8)
   TOTAL ........................................  $ 6,452,433   $ 6,331,142
                                                   ===========   ===========

See Notes to Condensed Financial Statements.

                                      -7-

                         ARIZONA PUBLIC SERVICE COMPANY
                       CONDENSED STATEMENTS OF CASH FLOWS
                       ----------------------------------
                                   (Unaudited)

                                                               Nine Months
                                                           Ended September 30,
                                                         ----------------------
                                                            1998         1997
                                                         ---------    ---------
                                                         (Thousands of Dollars)

Cash Flows from Operating Activities:
  Net Income .........................................   $ 217,312    $ 227,837
  Items not requiring cash:
    Depreciation and amortization ....................     279,097      274,027
    Nuclear fuel amortization ........................      24,991       24,077
    Deferred income taxes - net ......................     (47,749)     (58,675)
    Deferred investment tax credit - net .............     (23,369)     (24,091)
  Changes in certain current assets and liabilities:
    Accounts receivable - net ........................    (118,843)     (84,769)
    Accrued utility revenues .........................     (27,594)     (26,597)
    Materials, supplies and fossil fuel ..............      (8,944)       2,077
    Other current assets .............................      (3,103)      (4,541)
    Accounts payable .................................      61,611       23,270
    Accrued taxes ....................................     122,709       93,215
    Accrued interest .................................      (5,171)     (13,279)
    Other current liabilities ........................      16,799       12,171
  Other - net ........................................     (20,778)      32,244
                                                         ---------    ---------
Net cash flow provided by operating activities .......     466,968      476,966
                                                         ---------    ---------

Cash Flows from Investing Activities:
  Capital expenditures ...............................    (221,904)    (229,608)
  Capitalized interest ...............................     (12,627)     (12,391)
  Other ..............................................      (5,872)     (16,798)
                                                         ---------    ---------
Net cash flow used for investing activities ..........    (240,403)    (258,797)
                                                         ---------    ---------

Cash Flows from Financing Activities:
  Long-term debt .....................................     109,375      109,906
  Short-term borrowings - net ........................     (15,400)     100,850
  Dividends paid on common stock .....................    (127,500)    (127,500)
  Dividends paid on preferred stock ..................      (8,070)     (10,334)
  Repayment of preferred stock .......................     (37,585)     (46,511)
  Repayment and reacquisition of long-term debt ......    (142,250)    (222,725)
                                                         ---------    ---------
      Net cash flow used for financing activities ....    (221,430)    (196,314)
                                                         ---------    ---------

Net increase in cash and cash equivalents ............       5,135       21,855
Cash and cash equivalents at beginning of period .....      12,552       12,521
                                                         ---------    ---------
Cash and cash equivalents at end of period ...........   $  17,687    $  34,376
                                                         =========    =========

Supplemental Disclosure of Cash Flow Information:
  Cash paid during the period for:
    Interest (excluding capitalized interest) ........   $ 100,929    $ 114,070
    Income taxes .....................................   $ 115,585    $ 161,228

See Notes to Condensed Financial Statements.

                                       -8-

                         ARIZONA PUBLIC SERVICE COMPANY

                     NOTES TO CONDENSED FINANCIAL STATEMENTS

1. In the opinion of the Company, the accompanying unaudited condensed financial
statements  contain all adjustments  (consisting of normal  recurring  accruals)
necessary  to  present  fairly  the  financial  position  of the  Company  as of
September 30, 1998, the results of operations for the three months,  nine months
and twelve months ended  September 30, 1998 and 1997, and the cash flows for the
nine months  ended  September  30,  1998 and 1997.  It is  suggested  that these
condensed financial  statements and notes to condensed  financial  statements be
read in  conjunction  with the  financial  statements  and  notes  to  financial
statements  included in the 1997 10-K.  Certain  prior year  balances  have been
restated to conform to the current year presentation.

2.  The  Company's  operations  are  subject  to  seasonal  fluctuations,   with
variations in energy usage by customers occurring from season to season and from
month to month  within a  season,  primarily  as a result  of  changing  weather
conditions.  For this and other  reasons,  the results of operations for interim
periods are not  necessarily  indicative  of the results to be expected  for the
full year.

3. All the  outstanding  shares  of  common  stock of the  Company  are owned by
Pinnacle West.

4. See  "Liquidity  and Capital  Resources" in Part I, Item 2 of this report for
changes in capitalization for the nine months ended September 30, 1998.

5. Regulatory Matters ___ Electric Industry Restructuring

STATE

The  following is a  description  of  regulatory  and  legislative  developments
related to implementation of retail electric competition  beginning with the ACC
rules  adopted in December  1996  through the proposed  settlement  agreement in
November 1998.

ACC RULES.  In December 1996, the ACC adopted rules that provide a framework for
the introduction of retail electric  competition in Arizona.  On August 5, 1998,
the ACC adopted amendments to the rules. The ACC rules, as amended,  include the
following major provisions:

o        The rules  apply to  virtually  all of the Arizona  electric  utilities
         regulated by the ACC, including the Company.

o        The rules require each affected utility, including the Company, to make
         available  at least  20% of its 1995  system  retail  peak  demand  for
         competitive generation supply to all customer classes beginning January
         1, 1999, and 100% beginning January 1, 2001.

                                      -9-

o        All  affected  utility  customers  with  single  premise  loads  of one
         megawatt or greater will be eligible for competitive  electric services
         beginning  January  1,  1999,  until  the 20%  level  described  in the
         preceding  paragraph  is met.  Until  the 20%  level  is met,  affected
         utility  customers  with single  premise  loads of forty  kilowatts  or
         greater will be able to aggregate  into a combined load of one megawatt
         or greater to be eligible for competitive  electric services  beginning
         January 1, 1999.

o        Prior to January 1, 2001,  residential  customers  will have  access to
         competitive  services through a quarterly  phase-in of one-half percent
         of residential customers per quarter beginning January 1, 1999.

o        Electric service providers that obtain  Certificates of Convenience and
         Necessity  (CC&Ns)  from the ACC will be  allowed  to  supply,  market,
         and/or broker  specified  electric  services at retail.  These services
         include  electric  generation,  but exclude  electric  transmission and
         distribution.

o        As required by the rules,  in February  1998 the Company filed with the
         ACC proposed tariffs for unbundled  service  (electric service elements
         provided and priced  separately).  The ACC has not issued a decision in
         this matter.

o        The rules  establish that the ACC shall allow a reasonable  opportunity
         for the recovery of unmitigated  stranded costs.  See "Stranded  Costs"
         below.   Affected   utilities   are   expected   to  take   reasonable,
         cost-effective steps to mitigate stranded costs.

o        Absent a waiver  from the ACC,  each  affected  utility  must  separate
         itself from all  competitive  generation  assets and services  prior to
         January 1, 2001. The separation must be either to an unaffiliated party
         or to a separate corporate affiliate or affiliates.

o        Beginning  January 1, 1999,  each  affected  utility will be prohibited
         from providing certain competitive electric services,  except through a
         separate affiliate.

o        The rules contain affiliate  transaction rules generally prohibiting an
         affected utility and its competitive  electric  affiliates from sharing
         personnel,  office space,  equipment,  services, and systems, except to
         the extent appropriate to perform certain  permissible shared corporate
         support  functions.  No later than  December  31, 1998,  each  affected
         utility  must file a  compliance  plan with the ACC  demonstrating  its
         compliance with the affiliate transaction rules.

In accordance  with the rules, on September 15, 1998, the Company filed a report
detailing  possible  mechanisms  to  provide  certain  non-rate  benefits  and a
possible  extension  of the 1996  regulatory  agreement  to all  standard  offer
customers and a proposed plan for phase-in  implementation  of 3,500 residential
customers per quarter

                                      -10-

on a first come, first served basis.

The amended rules became  effective on an emergency basis upon their filing with
the Secretary of State on August 10, 1998.  The ACC held hearings on the amended
rules in October  1998 and must  complete  the process of  adopting  the amended
rules on a permanent basis within 180 days of the Secretary of State filing. The
Company  anticipates  the  completion  of this process by year-end 1998 or early
1999.

The  Company  believes  that  certain  provisions  of the 1996 ACC rules and the
amended  rules are  deficient.  In  February  1997,  a lawsuit  was filed by the
Company to protect its legal rights  regarding  the 1996 rules.  That lawsuit is
pending  but two  related  cases filed by other  utilities  have been  partially
decided in a manner adverse to those utilities' positions.  In October 1998, the
Company also filed a lawsuit to protect its legal rights  regarding  the amended
rules.

STRANDED COSTS. In February 1998, the ACC completed a formal, generic hearing on
stranded cost  determination  and recovery.  On June 22, 1998, the ACC issued an
order in this matter. The order allows an affected utility, such as the Company,
to choose between two options for the recovery of its stranded costs.  Under the
first option,  an affected utility that chooses to divest its generating  assets
must file a divestiture plan for ACC approval no later than October 1, 1998, and
such  divestiture must be completed by January 1, 2001, after which the affected
utility  would be  permitted  to  collect  100  percent of its  stranded  costs,
including a return on the unamortized balance, over a ten-year period. Under the
second option (referred to by the ACC as the "Transition Revenues Methodology"),
an affected utility would be provided  sufficient revenues necessary to maintain
financial  integrity  for a  period  of ten  years or the ACC  would  "otherwise
provide an  allocation  of  stranded  cost  responsibilities  and risks  between
ratepayers and shareholders as is determined to be in the public  interest." The
order also states an intent that the various  recovery options "will provide the
affected  utilities  sufficient  revenues to enable them to recover  appropriate
regulatory assets." In accordance with the order, on August 21, 1998 the Company
filed with the ACC the Transition Revenues  Methodology as its choice of options
for stranded  cost  recovery and a related  implementation  plan relating to its
chosen  option.  The  Company  does not intend to divest its  generating  assets
except to an affiliated  party. The Company believes that certain  provisions of
the stranded  cost order are  deficient and in August 1998 the Company filed two
lawsuits to protect  its legal  rights  relating to the order.  Based on various
assumptions,  estimates and methodologies, the Company estimates its recoverable
stranded costs (excluding regulatory assets which have already been addressed in
the 1996  regulatory  agreement  with the ACC) to be $533  million,  assuming  a
measurement  period 1999 through 2004. The Company cannot accurately predict the
outcome of this matter.

PROPOSED  SETTLEMENT  AGREEMENT.  On November  4, 1998,  the Company and the ACC
Staff entered into a proposed settlement agreement related to the implementation
of retail electric competition. In connection with the settlement agreement, the
Company and TEP entered into a memorandum of  understanding  for the exchange of
certain

                                      -11-

assets. The following are the major provisions of each agreement,  both of which
are attached as exhibits to this Form 10-Q and incorporated herein by reference:

                  PROPOSED SETTLEMENT AGREEMENT WITH ACC STAFF

o        The  Company  will  reduce  its prices by a total of at least 4% in the
         years 1999 through 2002.  Price  reductions in 2001 and 2002 will apply
         only to the  Company's  residential  customers  who  purchase all their
         electric services from the Company.

o        There will be a  moratorium  on filing for retail rate  changes  before
         January 1, 2003,  except for the price  reductions  described above and
         certain other limited circumstances.

o        In addition to the  cost-saving  incentive  mechanism,  the rate filing
         moratorium  and full  recovery  of  regulatory  assets,  certain  other
         aspects of  the 1996  regulatory settlement are  extended through 2002.
         See Note 6  below for  additional  information on  the 1996  regulatory
         agreement.

o        The Company will be permitted to defer for later  recovery  prudent and
         reasonable  costs of  complying  with the  amended  ACC rules,  systems
         benefits  costs and solar power costs in excess of the levels  included
         in current rates.

o        The Company will have the ability to recover stranded costs in exchange
         for the  divestiture  of its 345 kV and 500 kV  transmission  assets to
         TEP.

o        The Company and TEP entered into a memorandum of understanding  for the
         exchange of certain assets.

o        Upon final  adoption  and approval of the  settlement  agreement by the
         ACC, the Company will move to dismiss all of its  litigation  currently
         pending against the ACC.

o        The Company will establish a separate corporate affiliate for marketing
         generation and other  competitive  electric  services  before  year-end
         1998.

o        The Company will form a separate corporate affiliate and transfer to it
         generating assets by year-end 2002.

                      MEMORANDUM OF UNDERSTANDING WITH TEP

o        The Company and TEP have entered into a memorandum of  understanding to
         negotiate in good faith to reach a definitive agreement on the exchange
         of certain transmission and generation assets.

o        The Company would acquire from TEP up to 273 MW of generating  capacity
         in exchange for the Company's 500 kV and 345 kV transmission lines. The
         assets

                                      -12-

         will be exchanged  at the  transmission  current  book value,  which is
         approximately  $162  million  as of July,  1998.  If TEP is  unable  to
         transfer 273 MW of generating capacity, the deficiency is to be made up
         by a cash payment from TEP to the Company.

o        The transaction is expected to close by December 31, 2000.

o        The generating  assets are TEP's interest in the Navajo Generating
         Station and Four Corners Generating Plant.

A  hearing  date for the  ACC's  consideration  or  approval  of the  settlement
agreement has not yet been set. The memorandum of understanding  provides that a
definitive  agreement must be entered into within sixty days of a final order on
the settlement agreement by the ACC.

LEGISLATIVE INITIATIVES. An Arizona joint legislative committee studied electric
utility industry restructuring issues in 1996 and 1997. In conjunction with that
study,  Arizona  legislative  counsel prepared memoranda in late 1997 related to
the legal  authority  of the ACC to  deregulate  the  Arizona  electric  utility
industry.  The memoranda raise a question as to the degree to which the ACC may,
under the Arizona  Constitution,  deregulate any portion of the electric utility
industry and allow rates to be  determined by market  forces.  This latter issue
(the ability of the ACC to set rates based on the  competitive  market) has been
subsequently  decided by lower courts in favor of the ACC in two  unrelated  and
two related lawsuits.

In May 1998, a bill was enacted to facilitate  implementation of retail electric
competition in the state. The bill includes the following major provisions:  (a)
requirements that Arizona's largest  government-operated  electric utility (Salt
River  Project)  and, at their option,  smaller city  electric  systems (i) open
their service  territories  to electric  service  providers to implement  retail
electric  generation  competition  for 20% of each  utility's  1995  retail peak
demand by December  31, 1998 and for all retail  customers by December 31, 2000;
(ii) decrease rates by at least 10% over a ten-year period beginning as early as
January 1, 1991;  (iii)  implement  procedures and public  processes,  including
judicial  review at the  request of either an  interested  party or the  Arizona
Attorney General, for establishing the terms, conditions and pricing of electric
services  as  well  as  certain  other  decisions   affecting   retail  electric
competition,  which  procedures  and processes  are  comparable to those already
applicable to public  service  corporations;  (b) a  description  of the factors
which  form the basis of  consideration  by Salt River  Project  in  determining
stranded costs;  and (c) a requirement  that metering and meter reading services
be provided on a  competitive  basis  during the first two years of  competition
only for  customers  having  demands  in  excess of one  megawatt  (and that are
eligible for competitive generation services),  and thereafter for all customers
receiving competitive electric generation.  In addition, the Arizona legislature
will  review  and make  recommendations  for the  1999  legislature  on  certain
competitive issues.

                                      -13-

FEDERAL

The  Energy  Policy  Act of 1992 and recent  rulemakings  by FERC have  promoted
increased  competition in the wholesale electric power markets. The Company does
not expect these rules to have a material impact on its financial statements.

Several  electric  utility  reform  bills  have been  introduced  during  recent
congressional  sessions,  which as currently  written,  would allow consumers to
choose their  electricity  suppliers by 2000 or 2003.  These bills,  other bills
that are expected to be introduced, and ongoing discussions at the federal level
suggest  a wide  range of  opinion  that  will need to be  narrowed  before  any
substantial restructuring of the electric utility industry can occur.

REGULATORY ACCOUNTING

The Company prepares its financial  statements in accordance with the provisions
of Statement of Financial  Accounting  Standards (SFAS) No. 71,  "Accounting for
the Effects of Certain Types of Regulation."  SFAS No. 71 requires a cost-based,
rate-regulated  enterprise to reflect the impact of regulatory  decisions in its
financial  statements.  The  Company's  existing  regulatory  orders and current
regulatory  environment  support its accounting  practices related to regulatory
assets,  which amounted to approximately  $0.9 billion at September 30, 1998. In
accordance  with  the  1996  regulatory  agreement,   the  ACC  accelerated  the
amortization  of  substantially  all of the  Company's  regulatory  assets to an
eight-year period that began July 1, 1996.

During 1997, the Emerging  Issues Task Force (EITF) of the Financial  Accounting
Standards  Board (FASB)  issued EITF 97-4,  which  requires  that SFAS No. 71 be
discontinued no later than when  legislation is passed or a rate order is issued
that  contains  sufficient  detail to determine its effect on the portion of the
business being  deregulated,  which could result in write-downs or write-offs of
physical  and/or  regulatory  assets.  Additionally,  the EITF  determined  that
regulatory  assets should not be written off if they are to be recovered  from a
portion of the entity which continues to apply SFAS No. 71.

Although  the ACC has issued  rules for  transitioning  generation  services  to
competition,  there are many unresolved  issues.  The Company continues to apply
SFAS No. 71 to all of its operations.  If rate recovery of regulatory  assets is
no longer probable, whether due to competition or regulatory action, the Company
would be required to write off the remaining balance as an extraordinary  charge
to expense.

                                      -14-

GENERAL

Changes  in  ACC  decisions,  Arizona  and  federal  legislation,  and  possible
amendments to the Arizona  Constitution may impact the  implementation of retail
electric  competition  in  Arizona.  Until  the  details  of  implementation  of
competition,  including  addressing stranded costs, are determined,  the Company
cannot accurately predict the impact of full retail competition on its financial
position,  cash flows or results of operation.  As  competition  in the electric
industry continues to evolve,  the Company will continue to evaluate  strategies
and alternatives that will position the Company to compete in the new regulatory
environment.

6. Regulatory Matters ___ 1996 Regulatory Agreement

In April 1996, the ACC approved a regulatory  agreement  between the Company and
the ACC Staff. The major provisions of this agreement are:

o        An annual rate  reduction of  approximately  $48.5 million ($29 million
         after  income  taxes),  or 3.4% on  average  for all  customers  except
         certain contract customers, effective July 1, 1996.

o        Recovery  of  substantially  all of the  Company's  present  regulatory
         assets through accelerated  amortization over an eight-year period that
         began July 1, 1996,  increasing  annual  amortization by  approximately
         $120 million ($72 million after income taxes).

o        A formula  for  sharing  future  cost  savings  between  customers  and
         shareholders  (price reduction formula)  referencing a return on equity
         (as defined) of 11.25%.

o        A moratorium  on filing for  permanent  rate  changes  prior to July 2,
         1999,  except under the price reduction formula and under certain other
         limited circumstances.

o        Infusion of $200 million of common  equity into the Company by Pinnacle
         West, in annual payments of $50 million starting in 1996.

Pursuant to the price reduction  formula,  in 1997 and in 1998, the ACC approved
retail price  decreases of  approximately  $17.6  million  ($10.5  million after
income taxes),  or 1.2%,  effective July 1, 1997, and  approximately $17 million
($10 million after income taxes), or 1.1%, effective July 1, 1998, respectively.

7. Agreement with Salt River Project

On April 25, 1998, the Company and Salt River Project  entered into a Memorandum
of Agreement in anticipation  of, and to facilitate,  the opening of the Arizona
electric industry. The Agreement contains the following major components:

                                      -15-

o        The  Company  and  Salt  River  Project  would  amend  the  Territorial
         Agreement  to remove  any  barriers  to the  provision  of  competitive
         electricity supply and non-distribution services.

o        The Company and Salt River Project  would amend the Power  Coordination
         Agreement  to lower  the price  that the  Company  will pay Salt  River
         Project for purchased power by  approximately  $17 million  (pretax) in
         1999 and by lesser annual amounts through 2006.

o        The  Company  and Salt  River  Project  agreed on  certain  legislative
         positions  regarding  electric  utility  restructuring at the state and
         federal level.

An ACC  docket had  previously  been  established  and the ACC held a hearing on
August 6, 1998 so that the ACC could review certain provisions of the Memorandum
of Agreement,  as amended,  including,  whether:  (a) the Territorial  Agreement
remains in the public interest,  (b) the Agreement is a contract in restraint of
trade,  and (c) the Agreement  will  materially  lessen the potential for retail
electric competition in Arizona.

The Antitrust  Unit of the Arizona  Attorney  General's  Office,  which has been
involved in the ongoing  regulatory and  legislative  proceedings  regarding the
restructuring of the Arizona electric industry,  requested  clarification of the
operation of certain of the Agreement's  provisions.  Pursuant to an Addendum to
Memorandum of Agreement, dated as of May 19, 1998 (the "Addendum"),  the Company
and  Salt  River  Project  amended  and  clarified  certain  provisions  of  the
Memorandum  of Agreement in response to certain  issues  raised by the Antitrust
Unit. By letter dated May 19, 1998,  the Antitrust  Unit advised the Company and
Salt River Project that, upon their execution of the Addendum,  it would take no
action  regarding  the  language of the  Memorandum  of  Agreement,  although it
reserved  the right to take  action in the future if new  information  justified
doing so.

8. The Palo Verde  participants  have  insurance for public  liability  payments
resulting  from  nuclear  energy  hazards to the full limit of  liability  under
federal law. This potential  liability is covered by primary liability insurance
provided by commercial  insurance carriers in the amount of $200 million and the
balance by an industry-wide  retrospective  assessment program. If losses at any
nuclear power plant covered by the programs  exceed the accumulated  funds,  the
Company  could  be  assessed  retrospective  premium  adjustments.  The  maximum
assessment  per  reactor  under  the  program  for  each  nuclear   incident  is
approximately  $88  million,  subject  to an  annual  limit of $10  million  per
incident. Based upon the Company's 29.1% interest in the three Palo Verde units,
the Company's  maximum  potential  assessment per incident is approximately  $77
million, with an annual payment limitation of approximately $9 million.

The Palo Verde  participants  maintain "all risk"  (including  nuclear  hazards)
insurance for property damage to, and decontamination of, property at Palo Verde
in the aggregate  amount of $2.75 billion,  a substantial  portion of which must
first be applied to

                                      -16-

stabilization  and  decontamination.  The  Company  has also  secured  insurance
against  portions of any increased  cost of  generation  or purchased  power and
business  interruption  resulting from a sudden and unforeseen  outage of any of
the three  units.  The  insurance  coverage  discussed  in this and the previous
paragraph is subject to certain policy conditions and exclusions.

9. The Financial  Accounting Standards Board issued SFAS No. 131 on "Disclosures
about Segments of an Enterprise and Related  Information" which is effective for
fiscal years  beginning  after  December 15,  1997.  SFAS No. 131 requires  that
public companies report certain  information  about operating  segments in their
financial statements. It also establishes related disclosures about products and
services,  geographic  areas,  and major  customers.  The  Company is  currently
evaluating what impact this standard will have on its disclosures.

In June 1998 the  Financial  Accounting  Standards  Board  issued  SFAS No.  133
"Accounting  for  Derivative  Instruments  and  Hedging  Activities,"  which  is
effective  for the  Company  in  2000.  SFAS No.  133  requires  that an  entity
recognize all  derivatives  as either assets or liabilities in the balance sheet
and measure those instruments at fair value. The standard also provides specific
guidance for accounting for derivatives  designated as hedging instruments.  The
Company is  currently  evaluating  what  impact this  standard  will have on its
financial statements.

                                      -17-

                         ARIZONA PUBLIC SERVICE COMPANY

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

OPERATING RESULTS

         The following table summarizes the Company's  revenues and earnings for
the three-month,  nine-month and  twelve-month  periods ended September 30, 1998
and 1997:



                                        Periods ended September 30
                                                (Unaudited)
                                          (Thousands of Dollars)

                     Three Months              Nine Months              Twelve Months
               -----------------------   -----------------------   -----------------------
                  1998         1997         1998         1997         1998         1997
               ----------   ----------   ----------   ----------   ----------   ----------
                                                              
Operating
Revenues       $  740,734   $  632,821   $1,562,872   $1,470,593   $1,970,832   $1,850,047

Earnings for
Common
Stock          $  130,846   $  126,715   $  209,652   $  218,032   $  230,310   $  212,837


         OPERATING  RESULTS  -  THREE-MONTH  PERIOD  ENDED  SEPTEMBER  30,  1998
         COMPARED WITH THREE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings increased $4 million in the three-month  comparison  primarily
because of customer growth, weather effects, and higher profitability from power
marketing  activities,  partially  offset by higher fuel  expenses  and a retail
price  reduction.  See Note 6 of Notes to  Condensed  Financial  Statements  for
information on the price reduction.

         Operating  revenues  increased $108 million  because of increased power
marketing  revenues ($71 million),  customer  growth ($28 million),  and weather
effects ($18 million),  partially offset by the price reduction ($6 million) and
other ($3  million).  The increase in power  marketing  revenues was a result of
higher  market prices and increased  activity.  The increase in power  marketing
revenues was accompanied by related increases in purchased power.

         Fuel  expenses  increased  $94  million  primarily  because  of  higher
purchased power prices,  increased  wholesale and retail sales volumes,  and the
effects  of two  fuel-related  settlements  in the third  quarter  of 1997.  The
settlements  contributed  approximately  $21 million to 1997 pretax earnings and
are reflected on the income statement as reductions in fuel expense and as other
income.

                                      -18-

         OPERATING RESULTS - NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1998 COMPARED
         WITH NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings  decreased $8 million in the nine-month  comparison  primarily
because of two fuel-related  settlements  recorded in 1997, increased operations
and  maintenance  expenses,  the  effects  of  weather,  and  two  retail  price
reductions,  partially offset by customer growth and higher  profitability  from
power  marketing  activities.  See  Note  6  of  Notes  to  Condensed  Financial
Statements for additional information about the price reduction.

         The two  fuel-related  settlements  increased the Company's 1997 pretax
earnings by approximately $21 million.  The Company's income statement  reflects
these settlements as reductions in fuel expense and as other income.

         Operations and  maintenance  expenses  increased $22 million related to
impending   competition   and  growth,   outages  at  power   plants  and  other
miscellaneous factors.

         Operating  revenues  increased $92 million  because of increased  power
marketing  revenues  ($69  million) and  customer  growth ($58  million).  These
factors were  partially  offset by the effects of weather ($20  million) and the
price reductions ($15 million).  The increase in power marketing  revenues was a
result of higher prices and increased activity.  The increase in power marketing
revenues was accompanied by related increases in purchased power.

         OPERATING  RESULTS -  TWELVE-MONTH  PERIOD  ENDED  SEPTEMBER  30,  1998
         COMPARED WITH TWELVE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings increased $17 million in the twelve-month comparison primarily
because  of  customer  growth  and higher  profitability  from  power  marketing
activities.  These positive factors more than offset two retail price reductions
and  the  effects  of  weather.  See  Note 6 of  Notes  to  Condensed  Financial
Statements for additional  information  about the price  reductions.  The period
ended  September 30, 1997 also benefited from two  fuel-related  settlements and
the  recognition  of $8 million of income tax benefits  associated  with capital
loss carryforwards.

         Operating  revenues  increased $121 million  because of increased power
marketing  revenues ($85 million) and customer  growth ($69 million),  partially
offset by the price  reductions  ($18  million),  the  effects of  weather  ($10
million), and other ($5 million). The increase in power marketing revenues was a
result of higher prices and increased activity.  The increase in power marketing
revenues was accompanied by related increases in purchased power.

                                      -19-

         The two  fuel-related  settlements  increased the Company's 1997 pretax
earnings by approximately $21 million.  The Company's income statement  reflects
these settlements as reductions in fuel expense and as other income.

         Operations and maintenance  expenses  decreased $8 million because of a
$32 million pretax charge for a voluntary severance program recorded in 1996 and
related  savings  in 1997,  partially  offset  by  higher  expenses  related  to
impending   competition   and  growth,   outages  at  power   plants  and  other
miscellaneous factors.

OTHER INCOME

         As part of a 1994 rate settlement with the ACC, the Company accelerated
amortization  of  substantially  all deferred ITCs over a five-year  period that
ends on December 31, 1999.  The  amortization  of ITCs is shown on the Company's
income  statement as Other Income ___ Income Taxes and  decreases  annual income
tax expense by approximately $28 million.

LIQUIDITY AND CAPITAL RESOURCES

         For the nine months  ended  September  30, 1998,  the Company  incurred
approximately $221 million in capital  expenditures,  which is approximately 68%
of  the  most  recently  estimated  1998  capital  expenditures.  The  Company's
projected capital expenditures for the next three years are: 1998, $323 million;
1999, $322 million; and 2000, $317 million, respectively.  These amounts include
about $30 - $35 million  each year for nuclear fuel  expenditures.  In addition,
the Company is considering  expanding  certain of its  businesses  over the next
several years, which may result in increased expenditures.

         The   Company's   long-term   debt  and  preferred   stock   redemption
requirements and payment  obligations on a capitalized  lease for the next three
years are:  1998,  $221 million;  1999,  $174 million;  and 2000,  $104 million.
During  the  nine  months  ended  September  30,  1998,  the  Company   redeemed
approximately  $142 million of its long-term debt and  approximately $38 million
of its preferred  stock with cash from  operations  and long-term and short-term
debt.  On  December 1, 1998 the  Company  will  redeem all $37.5  million of its
$1.8125 Cumulative Preferred Stock, Series W. As a result of the 1996 regulatory
agreement (see Note 6 of Notes to Condensed Financial Statements), Pinnacle West
invested  $50 million in the  Company in 1996 and 1997 and will  invest  similar
amounts annually in 1998 and 1999.

         Although  provisions  in the  Company's  bond  indenture,  articles  of
incorporation,  and financing  orders from the ACC establish  maximum amounts of
additional  first mortgage bonds and preferred stock that the Company may issue,
management does

                                      -20-

not expect any of these  restrictions to limit the Company's ability to meet its
capital requirements.

YEAR 2000 READINESS DISCLOSURE

         As the year 2000 approaches  many companies face problems  because most
software  application  and  operational  programs  will not  properly  recognize
calendar  dates   beginning  with  the  year  2000.  The  Company   initiated  a
comprehensive  Company-wide  Year 2000  program  over a year ago to  review  and
resolve  all Year 2000  issues in critical  systems  and  equipment  in a timely
manner to avoid impacting the reliability of electric  service to its customers.
This included a Company-wide awareness program of the Year 2000 issue.

         The Company has been  actively  implementing  and replacing new systems
and  technology  since 1995 for reasons  unrelated  to the year 2000,  and these
actions have resulted in substantially all of its major  information  technology
(IT)  systems  becoming  Year 2000  compliant.  The Company  has made,  and will
continue to make,  certain  modifications to its computer  hardware and software
systems  and  applications  to ensure  they are  capable  of  handling  changing
business needs,  including  dates in the year 2000 and thereafter.  In addition,
other IT systems and non-IT systems, including embedded technology and real-time
process  control  systems,  are being analyzed for potential  modifications.  To
date, the Company has inventoried and assessed all IT and non-IT systems and any
renovation,  validation and implementation of these systems will be completed by
mid-1999,  except for those items that can only be completed during  maintenance
outages at Palo Verde, which will be completed for the last unit during the last
half of 1999. The Company has also designated an internal  audit/quality  review
team that is periodically  reviewing the individual Year 2000 projects and their
Year 2000 readiness.

         The Company is communicating with its significant  suppliers,  business
partners,  other  utilities and large customers to determine the extent to which
it may be affected by these third  parties'  plans to  remediate  their own Year
2000 issues in a timely manner.  The Company has been interfacing with suppliers
of systems,  services and materials in order to assess  whether their  schedules
for analysis and  remediation of Year 2000 issues are timely and to assess their
ability to continue to supply  required  services and materials.  The Company is
also working with the North American Electric Reliability Council (NERC) through
the Western Systems Coordinating Council (WSCC) to develop operational plans for
stable grid operation  that will be utilized by the Company and other  utilities
in the western United States.  However, the Company cannot currently predict the
effect on the Company if the systems of these other  companies are not Year 2000
compliant.

         The Company  currently  estimates that it will spend  approximately  $5
million  relating  to Year 2000  issues,  about  half of which has been spent to
date.  This does not include  expenditures  incurred since 1995 to implement and
replace systems for

                                      -21-

reasons  unrelated  to the Year 2000,  as  discussed  above.  Costs  incurred to
address the Year 2000 issue are charged to  operating  expenses as incurred  and
are  expected  to be funded by  available  cash  balances  and cash  provided by
operations.

         The Company  currently  expects that its most  reasonably  likely worst
case Year 2000  scenario  would be  intermittent  loss of power,  similar  to an
outage during a severe weather disturbance.  In this situation the Company would
restore  power as soon as possible  by,  among other  things,  re-routing  power
flows.  The Company does not currently  expect that this  scenario  would have a
material effect on its financial position, cash flows or results of operations.

         The Company is working to develop its own  contingency  plans to handle
Year 2000  issues,  and expects  these plans to be  completed  by  mid-1999.  As
discussed  above,  the  Company  is also  working  with NERC and WSCC to develop
contingency plans related to grid operation.

COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

         See Note 5 of Notes to Condensed Financial Statements in Part I, Item 1
of this  report for  discussions  of  competitive  developments  and  regulatory
accounting.  See Note 7 of Notes to Condensed  Financial  Statements  in Part I,
Item 1 of this  report  for a  discussion  of a  proposed  amendment  to a Power
Coordination  Agreement with Salt River Project that the Company estimates would
reduce its pretax costs for purchased power by approximately $17 million in 1999
and by lesser annual amounts through 2006.

RATE MATTERS

         See Note 6 of Notes to Condensed Financial Statements in Part I, Item 1
of this report for a discussion of a price reduction,  which became effective on
July 1, 1998.

FORWARD-LOOKING STATEMENTS

         The above discussion contains  forward-looking  statements that involve
risks and uncertainties.  Words such as "estimates,"  "expects,"  "anticipates,"
"plans,"    "believes,"    "projects,"   and   similar   expressions    identify
forward-looking  statements.  These risks and uncertainties include, but are not
limited to, the ongoing  restructuring of the electric industry;  the outcome of
the regulatory  proceedings relating to the restructuring;  regulatory,  tax and
environmental  legislation;  the ability of the Company to successfully  compete
outside its traditional regulated markets;  regional economic conditions,  which
could  affect  customer  growth;  the cost of debt and equity  capital;  weather
variations affecting customer usage;  technological developments in the electric
industry; and Year 2000 issues.

                                      -22-

         These  factors and the other matters  discussed  above may cause future
results  to differ  materially  from  historical  results,  or from  results  or
outcomes currently expected or sought by the Company.

                                      -23-
                           PART II - OTHER INFORMATION
                           ---------------------------

ITEM 5. OTHER INFORMATION

         CONSTRUCTION AND FINANCING PROGRAMS

         See "Liquidity and Capital  Resources" in Part I, Item 2 of this report
for a discussion of the Company's construction and financing programs.

         COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

         See Note 5 of Notes to Condensed Financial Statements in Part I, Item 1
of this report for a  discussion  of  competition  and the rules  regarding  the
introduction of retail electric competition in Arizona. On February 28, 1997 and
October 16, 1998, lawsuits were filed by the Company to protect its legal rights
regarding the rules and the amended rules,  respectively,  and in each complaint
the  Company  asked the Court for (i) a judgment  vacating  the retail  electric
competition  rules,  (ii) a  declaratory  judgment  that the rules are  unlawful
because,  among other  things,  they were  entered  into  without  proper  legal
authorization,  and (iii) a permanent  injunction barring the ACC from enforcing
or implementing the rules and from  promulgating any other  regulations  without
lawful  authority.   ARIZONA  PUBLIC  SERVICE  COMPANY  v.  ARIZONA  CORPORATION
COMMISSION, CV 97-03753 (consolidated under CV 97-03748.) ARIZONA PUBLIC SERVICE
COMPANY v. ARIZONA CORPORATION COMMISSION,  CV 98-18896. On August 28, 1998, the
Company  filed two lawsuits to protect its legal rights under the stranded  cost
order and in its  complaints the Company asked the Court to vacate and set aside
the order. ARIZONA PUBLIC SERVICE COMPANY v. ARIZONA CORPORATION COMMISSION,  CV
98-15728.  ARIZONA PUBLIC  SERVICE  COMPANY v. ARIZONA  CORPORATION  COMMISSION,
1-CA-CC-98-0008. See "State-Proposed Settlement Agreement" in Note 5 of Notes to
Condensed  Financial  Statements in this Report regarding the possible dismissal
of the lawsuits described in this paragraph.

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

         (a)  Exhibits

EXHIBIT NO.       DESCRIPTION
- -----------       -----------

27.1            Financial Data Schedule

99.1            Settlement Agreement with the ACC dated November 4, 1998, which
                includes a Memorandum of Understanding with TEP

         In  addition  to  those  Exhibits  shown  above,   the  Company  hereby
incorporates  the  following  Exhibits  pursuant to Exchange Act Rule 12b-32 and
Regulation ss.229.10(d) by reference to the filings set forth below:

                                      -24-


EXHIBIT NO.     DESCRIPTION                        ORIGINALLY FILED AS EXHIBIT:      FILE NO.(a)   DATE EFFECTIVE
- -----------     -----------                        ----------------------------      ---------     --------------

                                                                                       
  3.1           Bylaws, amended as of              3.1 to 1995 Form 10-K             1-4473        3-29-96
                February 20, 1996                  Report

  3.2           Resolution of Board of             3.2 to 1994 Form 10-K             1-4473        3-30-95
                Directors temporarily              Report
                suspending Bylaws in part

  3.3           Articles of Incorporation,         4.2 to Form S-3                   1-4473        9-29-93
                restated as of May 25, 1988        Registration Nos.
                                                   33-33910 and 33-55248 by
                                                   means of September 24,
                                                   1993 Form 8-K Report

  3.4           Certificates pursuant to           4.3 to Form S-3                   1-4473        9-29-93
                Sections 10-152.01 and             Registration Nos.
                10-016, Arizona Revised            33-33910 and 33-55248 by
                Statutes, establishing Series A    means of September 24,
                through V of the Company's         1993 Form 8-K Report
                Serial Preferred Stock

  3.5           Certificate pursuant to            4.4 to Form S-3                   1-4473        9-29-93
                Section 10-016, Arizona            Registration Nos.
                Revised Statutes, establishing     33-33910 and 33-55248 by
                Series W of the Company's          means of September 24,
                Serial Preferred Stock             1993 Form 8-K Report


         (b)  Reports on Form 8-K

         During the  quarter  ended  September  30,  1998,  and the period  from
October 1 through November 13, 1998, the Company filed the following  reports on
Form 8-K:

         Report dated August 5, 1998  regarding  the ACC rules related to retail
competition.

- --------
(a)  Reports  filed  under  File No.  1-4473  were  filed in the  office  of the
Securities and Exchange Commission located in Washington, D.C.

                                      -25-

                                   SIGNATURES

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

                                         ARIZONA PUBLIC SERVICE COMPANY
                                                  (Registrant)

Dated:  November 13, 1998            By: George A. Schreiber, Jr.
                                         --------------------------------------
                                         George A. Schreiber, Jr.
                                         Executive Vice President and
                                         Chief Financial Officer
                                         (Principal Financial Officer
                                         and Officer Duly Authorized
                                         to sign this Report)