3rd Quarter 1999


                                  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 quarterly period ended September 30, 1999

                                       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 1-8483

                               UNOCAL CORPORATION
             (Exact name of registrant as specified in its charter)




                 DELAWARE                             95-3825062
         (State or other jurisdiction of           (I.R.S. Employer
          incorporation or organization)            Identification No.)


         2141       ROSECRANS AVENUE,  SUITE 4000, EL SEGUNDO,  CALIFORNIA 90245
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (310) 726-7600
              (Registrant's Telephone Number, Including Area Code)


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

Number of shares of Common Stock, $1 par value, outstanding as of September 30,
1999: 242,417,532



                         PART I - FINANCIAL INFORMATION


ITEM 1.  FINANCIAL STATEMENTS



CONSOLIDATED EARNINGS                                                                                             UNOCAL CORPORATION
(UNAUDITED)
                                                                                 For the Three Months          For the Nine Months
                                                                                  Ended September 30            Ended September 30
                                                                               -----------------------       -----------------------
Millions of dollars except per share amounts                                       1999           1998           1999           1998
- ------------------------------------------------------------------------       -----------------------       -----------------------
Revenues
 ....................................................................                                           
Sales and operating revenues ...........................................       $  1,546       $  1,286       $  4,230       $  3,683
Interest, dividends and miscellaneous income ...........................             16             12             72             74
Equity in earnings of affiliated companies .............................             24             23             72             75
Gain/(loss) on sales of assets .........................................              2             73           --              166
                                                                               -----------------------       -----------------------
      Total revenues ...................................................          1,588          1,394          4,374          3,998

Costs and other deductions
Crude oil, natural gas and product purchases ...........................            891            604          2,329          1,535
Operating expense ......................................................            270            313            807            993
Selling, administrative and general expense ............................             34             34            118             73
Depreciation, depletion and amortization ...............................            205            186            588            566
Dry hole costs .........................................................             33             58            107            150
Exploration expense ....................................................             44             53            117            139
Interest expense .......................................................             52             48            145            131
Property and other operating taxes .....................................             13             13             40             44
Distributions on convertible preferred
   securities of subsidiary trust ......................................              8              8             24             24
Minority interests .....................................................              4              2              8              7
                                                                               -----------------------       -----------------------
      Total costs and other deductions .................................          1,554          1,319          4,283          3,662
                                                                               -----------------------       -----------------------
Earnings (loss) from operations before income taxes ....................             34             75             91            336
Income taxes ...........................................................             10             39             51            177
                                                                               -----------------------       -----------------------
      Net earnings (loss) ..............................................       $     24       $     36       $     40       $    159
                                                                               =======================       =======================

Basic earnings (loss) per share of common stock (a) ....................       $   0.10       $   0.15       $   0.17       $   0.66

Diluted earnings (loss) per share of common stock (b) ..................       $   0.10       $   0.15       $   0.17       $   0.66

Cash dividends declared per share of common stock ......................       $   0.20       $   0.20       $   0.60       $   0.60

<FN>
(a)  Basic weighted average shares outstanding  (in thousands) .........        242,404        241,362        241,905        241,621
(b)  Diluted weighted average shares outstanding (in thousands) ........        244,022        242,535        243,050        242,916
</FN>
              See notes to the consolidated financial statements.





CONSOLIDATED BALANCE SHEET                                                                                UNOCAL CORPORATION

                                                                                 September 30                   December 31
                                                                               ---------------               ---------------
Millions of dollars                                                                    1999(a)                          1998
- ------------------------------------------------------------------------       ---------------               ---------------
Assets
Current assets
 ....................................................................                                        
   Cash and cash equivalents ...........................................             $    209                      $    238
   Accounts and notes receivable .......................................                  798                           807
   Inventories .........................................................                  197                           179
   Deferred income taxes ...............................................                  130                           142
   Other current assets ................................................                   26                            22
                                                                               ---------------               ---------------
      Total current assets .............................................                1,360                         1,388

Investments and long-term receivables ..................................                1,269                         1,143
Properties (b) .........................................................                5,868                         5,276
Deferred income taxes ..................................................                   71                            23
Other assets ...........................................................                  120                           122
                                                                               ---------------               ---------------
      Total assets .....................................................             $  8,688                      $  7,952
                                                                               ===============               ===============
Liabilities and Stockholders' Equity
Current liabilities
   Accounts payable ....................................................             $    899                      $    709
   Taxes payable .......................................................                  128                           260
   Interest payable ....................................................                   46                            52
   Current portion of environmental liabilities ........................                  145                           142
   Other current liabilities ...........................................                  128                           213
                                                                               ---------------               ---------------
      Total current liabilities ........................................                1,346                         1,376

Long-term debt .........................................................                2,834                         2,558
Deferred income taxes ..................................................                  268                           132
Accrued abandonment, restoration and environmental liabilities .........                  566                           622
Other deferred credits and liabilities .................................                  599                           514
Minority interests .....................................................                  421                            26

Company-obligated mandatorily redeemable convertible preferred
   securities of a subsidiary trust holding solely parent debentures ...                  522                           522

Common stock ($1 par value) ............................................                  253                           252
     Shares authorized:  750,000,000 (c)
Capital in excess of par value .........................................                  492                           460
Unearned portion of restricted stock issued ............................                  (22)                          (24)
Retained earnings ......................................................                1,854                         1,959
Accumulated other comprehensive income (loss) ..........................                  (34)                          (34)
Treasury stock - at cost  (d) ..........................................                 (411)                         (411)
                                                                               ---------------               ---------------
      Total stockholders' equity .......................................                2,132                         2,202
                                                                               ---------------               ---------------
         Total liabilities and stockholders' equity ....................             $  8,688                      $  7,952
                                                                               ===============               ===============
<FN>
(a)  Unaudited
(b)  Net of accumulated depreciation ...................................             $ 10,395                      $ 10,193
(c)  Number of shares outstanding (in thousands) .......................              242,419                       241,378
(d)  Number of shares (in thousands) ...................................               10,623                        10,623
</FN>
              See notes to the consolidated financial statements.

                                        2



CONSOLIDATED CASH FLOWS                                                                                   UNOCAL CORPORATION
(UNAUDITED)

                                                                                                 For the Nine Months
                                                                                                 Ended September 30
                                                                                       -------------------------------------
Millions of dollars                                                                       1999                          1998
- ----------------------------------------------------------------------------------------------------------------------------

Cash Flows from Operating Activities
 ....................................................................                                         
Net earnings (loss) ....................................................               $    40                      $   159
Adjustments to reconcile net earnings to
   net cash provided by operating activities
      Depreciation, depletion and amortization .........................                   588                          566
      Dry hole costs ...................................................                   107                          150
      Deferred income taxes ............................................                   (54)                         (34)
      (Gain) loss on sales of assets (before-tax) ......................                    --                         (166)
      Other ............................................................                   (54)                          18
      Working capital and other changes related to operations
         Accounts and notes receivable .................................                    12                           96
         Inventories ...................................................                   (18)                          18
         Accounts payable ..............................................                    92                          (10)
         Taxes payable .................................................                  (132)                          50
         Other .........................................................                   (64)                        (136)
                                                                                       -------------------------------------
            Net cash provided by (used in) operating activities ........                   517                          711

Cash Flows from Investing Activities
   Capital expenditures (includes dry hole costs) ......................                  (761)                      (1,248)
   Acquisition of Northrock Resources Ltd. .............................                  (184)                          --
   Proceeds from sales of assets .......................................                   163                          299
                                                                                       -------------------------------------
            Net cash provided by (used in) investing activities ........                  (782)                        (949)

Cash Flows from Financing Activities
   Long-term borrowings ................................................                   833                          666
   Reduction of long-term debt .........................................                  (708)                        (381)
   Dividends paid on common stock ......................................                  (145)                        (145)
   Repurchases of common stock .........................................                    --                          (48)
   Minority interests ..................................................                   234                           (9)
   Other ...............................................................                    22                           --
                                                                                       -------------------------------------
         Net cash provided by (used in) financing activities ...........                   236                           83

Increase (decrease) in cash and cash equivalents .......................                   (29)                        (155)
Cash and cash equivalents at beginning of year .........................                   238                          338
                                                                                       -------------------------------------
Cash and cash equivalents at end of period .............................               $   209                      $   183
                                                                                       =====================================
<FN>
Supplemental  disclosure of cash flow  information:
      Cash paid during the period for:
      Interest (net of amount capitalized)..............................               $  159                       $   148
      Income taxes (net of refunds).....................................               $  218                       $   166
</FN>
              See notes to the consolidated financial statements.

                                       3


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(UNAUDITED)

(1)  The consolidated financial statements included herein are unaudited and, in
     the opinion of  management,  include all  adjustments  necessary for a fair
     presentation  of  financial   position  and  results  of  operations.   All
     adjustments are of a normal recurring nature. Such financial statements are
     presented in  accordance  with the  Securities  and  Exchange  Commission's
     (Commission) disclosure requirements for Form 10-Q.

     These  interim   consolidated   financial  statements  should  be  read  in
     conjunction  with  the  consolidated  financial  statements  and the  Notes
     thereto  filed with the  Commission  in Unocal  Corporation's  1998  Annual
     Report on Form 10-K.

     Results for the nine months ended  September 30, 1999, are not  necessarily
     indicative of future financial results.

     Certain items in the prior year financial statements have been reclassified
     to conform to the 1999 presentation.

(2)  For the  purpose  of  this  report,  Unocal  Corporation  (Unocal)  and its
     consolidated subsidiaries, including Union Oil Company of California (Union
     Oil), are referred to as the company.

     The consolidated  financial  statements of the company include the accounts
     of  subsidiaries  in which a controlling  interest is held.  Investments in
     affiliates  without a controlling  interest are accounted for by the equity
     method.  Under the equity method,  the  investments are stated at cost plus
     the   company's   equity  in   undistributed   earnings  and  losses  after
     acquisition.  Income  taxes  estimated  to be  payable  when  earnings  are
     distributed are included in deferred taxes.

(3)  Other Financial Information

     During the third quarters of 1999 and 1998, approximately 51 percent and 40
     percent,   respectively,   of  total  sales  and  operating  revenues  were
     attributed to the resale of crude oil,  natural gas and natural gas liquids
     purchased  from  others  in  connection  with  the  company's  trading  and
     marketing  activities.  For the nine months  ended  September  30, 1999 and
     1998, approximately 48 percent and 34 percent, respectively, of total sales
     and operating  revenues were attributed to the resale of crude oil, natural
     gas and natural gas liquids  purchased from others.  Related purchase costs
     are  classified  as  expense  in the crude  oil,  natural  gas and  product
     purchases category on the consolidated earnings statement.

     Capitalized  interest  totaled  $4  million  and $5  million  for the third
     quarters of 1999 and 1998,  respectively.  Capitalized interest totaled $13
     million  and $22  million  for the  first  nine  months  of 1999 and  1998,
     respectively.

 (4) Income Taxes

     Income taxes on earnings  from  operations  for the third quarter and first
     nine  months  of 1999  were  $10  million  and $51  million,  respectively,
     compared  with $39 million and $177 million for the  comparable  periods of
     1998.  The  effective  income tax rate for the third quarter of 1999 was 29
     percent  compared with 52 percent for the third quarter of 1998.  The lower
     tax  rate  for  the   third   quarter   of  1999  was   primarily   due  to
     currency-related  tax adjustments in Thailand  partially  offset by the mix
     effect of domestic losses versus foreign earnings.

     The  effective  income  tax rate for the first  nine  months of 1999 was 56
     percent compared with 53 percent for the first nine months of 1998.

                                       4

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

(5)  Comprehensive Income

     The company's comprehensive earnings were as follows:


                                                                                     For the Three Months        For the Nine Months
                                                                                      Ended September 30          Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                     1999         1998          1999         1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   
Net earnings (loss) ...........................................................        $  24        $  36         $  40        $159
Change in foreign currency translation adjustments (net of tax) ...............           (1)          (5)           --          (5)
                                                                                ----------------------------------------------------
      Comprehensive earnings (loss) ...........................................        $  23        $  31         $  40        $154
                                                                                ====================================================


(6)  Earnings Per Share

     The following are reconciliations of the numerators and denominators of the
     basic and diluted  earnings per share (EPS)  computations  for net earnings
     for the third  quarters  and the nine months ended  September  30, 1999 and
     1998:

                                                                                              Earnings          Shares     Per Share
Millions except per share amounts                                                           (Numerator)     (Denominator)    Amount
- ------------------------------------------------------------------------------------------------------------------------------------
Three Months Ended September 30, 1999
                                                                                                                     
      Net Earnings ............................................................                $    24             242.4
         Basic EPS ............................................................                                                $0.10
                                                                                                                               =====
      Effect of Dilutive Securities
         Options/common stock equivalents .....................................                                      1.6
                                                                                           -----------------------------
         Diluted EPS ..........................................................                     24             244.0       $0.10
                                                                                                                               =====
         Distributions on subsidiary trust preferred securities (after-tax) ...                      6              12.3
                                                                                           -----------------------------
         Antidilutive .........................................................                $    30             256.3       $0.12

Three Months Ended September 30, 1998
      Net Earnings ...........................................................                 $    36             241.4
         Basic EPS ...........................................................                                                 $0.15
                                                                                                                               =====
      Effect of Dilutive Securities
         Options/common stock equivalents ....................................                                       1.1
                                                                                           -----------------------------
         Diluted EPS .........................................................                      36             242.5       $0.15
                                                                                                                               =====
         Distributions on subsidiary trust preferred securities (after-tax) ..                       6              12.3
                                                                                           -----------------------------
         Antidilutive ........................................................                 $    42             254.8       $0.16

Nine Months Ended September 30, 1999
      Net Earnings ...........................................................                 $    40             241.9
         Basic EPS ...........................................................                                                 $0.17
                                                                                                                               =====
      Effect of Dilutive Securities
         Options/common stock equivalents ....................................                                       1.1
                                                                                           -----------------------------
         Diluted EPS .........................................................                      40             243.0       $0.17
                                                                                                                               =====
         Distributions on subsidiary trust preferred securities (after-tax) ..                      19              12.3
                                                                                           -----------------------------
         Antidilutive ........................................................                 $    59             255.3       $0.23

Nine Months Ended September 30, 1998
      Net Earnings ...........................................................                 $   159             241.6
         Basic EPS ...........................................................                                                 $0.66
                                                                                                                               =====
      Effect of Dilutive Securities
         Options/common stock equivalents ....................................                                       1.3
                                                                                           -----------------------------
         Diluted EPS .........................................................                     159             242.9       $0.66
                                                                                                                               =====
         Distributions on subsidiary trust preferred securities (after-tax) ..                      18              12.3
                                                                                           -----------------------------
         Antidilutive ........................................................                 $   177             255.2       $0.69
- ------------------------------------------------------------------------------------------------------------------------------------

                                       5



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

     Not included in the computation of diluted EPS were options  outstanding at
     September 30, 1999 to purchase  approximately  2.2 million shares of common
     stock.  These options were not included in the  computation as the exercise
     prices were greater than the  year-to-date  average  market price of $37.51
     for the common  shares.  The exercise  prices of these  options  range from
     $37.69 to $51.01 per share and they expire in 2007 through 2009.

(7)  Sale of Accounts Receivable

     In the second  quarter of 1999,  the  company,  through a  non-consolidated
     subsidiary Unocal Receivables Corp. ("URC"), entered into a sales agreement
     with  an  outside  party  under  which  it will  sell up to a $204  million
     undivided interest in domestic crude oil and natural gas trade receivables.
     The  company   continues  to  manage  the  collection  and   administrative
     responsibilities for accounts receivable  including the sold interest.  The
     effect  to the  company  of  the  interests  sold  in  its  domestic  trade
     receivables  under this  agreement is $95 million as of September 30, 1999.
     The amount sold is reflected as a reduction of accounts  receivable  in the
     consolidated balance sheet and in net cash provided by operating activities
     in the consolidated statement of cash flows.

(8)  Long Term Debt and Credit Agreements

     During the third  quarter,  the  company  increased  its  commercial  paper
     borrowings by $85 million to a total outstanding balance of $125 million at
     September 30, 1999. In addition,  the company also increased its borrowings
     under its limited recourse project financing for its Azerbaijan  activities
     by $11 million to an  outstanding  balance of $55 million at September  30,
     1999.

     Proceeds  from the  issuance  of  commercial  paper  were used for  general
     corporate  purposes including the refinancing of existing debt. The company
     retired  $22  million  in  maturing   medium-term  notes  and  reduced  its
     borrowings  under its $1 billion bank credit agreement by $40 million to an
     outstanding balance of $60 million at September 30, 1999.

(9)  Financial Instruments

     The estimated fair value of the company's long-term debt was $2,869 million
     on September 30, 1999. The fair values of the debt  instruments  were based
     on the  discounted  amounts of future cash outflows  using rates offered to
     the company for debt with similar  maturities.  The estimated fair value of
     the  mandatorily   redeemable   convertible  preferred  securities  of  the
     company's  subsidiary  trust  was  $566  million.  The  fair  value  of the
     preferred  securities  was based on the  trading  prices  of the  preferred
     securities on September 30, 1999.

     The  company's  financial  instruments  at September 30, 1999 are described
     below:

     Foreign exchange contracts - The company and its subsidiaries have assorted
     currency swap agreements outstanding that are designed to hedge the impacts
     of  foreign-currency  exchange-rate  fluctuations on US dollar- denominated
     debt. In the third quarter of 1999, the company received income tax refunds
     in Canada  equivalent  to  approximately  US$49  million as a result of the
     company's reinvestment of the proceeds from the 1998 sale of its investment
     in the stock of Tarragon  Oil and Gas Limited  into the stock of  Northrock
     Resources Ltd. The refund was used to retire approximately US$40 million of
     the  US$100  million  debt  outstanding  of one of the  company's  Canadian
     subsidiaries.  As a result of the debt retirement,  the subsidiary  reduced
     its related  currency swap  agreement from US$100 million to US$60 million.
     The agreement now requires the subsidiary to pay approximately C$88 million
     at maturity in exchange for US$60 million.  The parent company also reduced
     its  corresponding  currency swap  agreement  from US$100 million to US$ 60
     million.  This  agreement,   which  effectively  offsets  the  subsidiary's
     agreement, now requires the parent company to pay US$60 million in exchange
     for  C$88  million  at  maturity.  The  combined  fair  values  of the swap
     agreements outstanding at the end of the period were approximately zero.



                                        6

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

     Other outstanding  currency swap agreements require the company's Northrock
     subsidiary to pay  approximately  C$115 million at maturity in exchange for
     US$75 million.  The fair values of these  agreements were US$72 million and
     were  determined by comparing the swap rates to the forward rates in effect
     at  September  30,  1999.  The  company's  share of the  estimated  pre-tax
     deferred  losses related to the US$75 million  currency swap agreements was
     US$1 million at September 30, 1999 (net of minority  interests).  The US$75
     million  to  be   received  by   Northrock   will  be  used  to  retire  US
     dollar-denominated debt at maturity.

     Northrock  also  has US  dollar  forward  contracts  outstanding  that  are
     designed  to  mitigate  its  exposure  to the US  dollar-indexed  prices it
     receives for the sale of its crude oil.  These  contracts  are subject,  in
     some  cases,  to  extensions  at  the  counterparty's  option  and  require
     Northrock   to  sell   approximately   US$200   million  in  exchange   for
     approximately C$285 million at maturity.  At September 30, 1999,  contracts
     of US$8  million  were  scheduled  to  mature  in 1999  with the  remaining
     contracts scheduled to mature periodically  through the year 2005. The fair
     values of the contracts were approximately  US$194 million. The fair values
     were  determined  by comparing  the contract  rates to the forward rates in
     effect at September  30, 1999.  The  company's  share of estimated  pre-tax
     unrealized  losses  relating  to  these US  dollar  forward  contracts  was
     approximately   US$3  million  at  September  30,  1999  (net  of  minority
     interests).

     During the  quarter,  the company  entered  into two forward  contracts  to
     purchase  Thai baht.  The  contracts  are  designed to hedge the  company's
     foreign-currency  exchange-rate  exposure  related to  expected  income tax
     payments to be paid to Thailand in 2000. The contracts  require the company
     to purchase 802 million baht at maturity in exchange for US$20 million. The
     fair value of the contracts at September 30, 1999 approximated the notional
     amounts.

     Other  commodity-based  contracts - Northrock had various  fixed-price  and
     fixed-price differential sales contracts outstanding at September 30, 1999,
     related to the future  sale of its natural gas  production.  The  contracts
     cover production, which averages 40 million cubic feet per day (mmcfpd) for
     the  remainder of 1999,  54 mmcfpd in 2000, 52 mmcfpd in 2001 and 52 mmcfpd
     in  2002.   Northrock  also  has  various   fixed-price   and   fixed-price
     differential  natural gas purchase  contracts  outstanding at September 30,
     1999, which require the purchase of 63 mmcfpd for the remainder of 1999 and
     23 mmcfpd in 2000.  The  company's  pre-tax  share of estimated  unrealized
     losses for these contracts was  approximately  $13 million at September 30,
     1999,  (net of minority  interests) and primarily  relate to contracts with
     delivery dates scheduled for the years 2001 through 2002.

     At September 30, 1999, the company had futures  contracts  outstanding with
     several  couterparties to purchase and sell approximately 19 million and 15
     million  barrels  of crude  oil,  respectively.  The fair  values  of these
     contracts,  based on quoted market prices, were approximately $104 million.
     The company also had futures contracts outstanding at September 30, 1999 to
     purchase and sell  approximately  19 million and 18 million  thousand cubic
     feet  (mcf)  of  natural  gas,  respectively.  The  fair  values  of  these
     contracts,  based on quoted market prices,  were  approximately $3 million.
     These contracts which were purchased as part of the company's  overall risk
     management  strategy were marked to market.  Approximately 2 percent of the
     company's  outstanding  crude oil and natural gas  futures  contracts  were
     related to the company's non-trading activities. At September 30, 1999, the
     company's  share of pre-tax  unrealized  gains  related to its  non-trading
     futures contract activity was approximately $2 million.

     The company had various hydrocarbon option contracts (options)  outstanding
     with several counterparties at September 30, 1999. Generally,  options have
     been  used to limit the  company's  exposure  to  adverse  commodity  price
     fluctuations.  In some cases,  the instruments may also limit the company's
     ability  to  participate   fully  in  future  gains  from  favorable  price
     movements.  These options are generally accounted for as hedges, with gains
     and losses  deferred and recognized as a component of crude oil and natural
     gas revenues upon the sale of the underlying production.



                                        7

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)


     At September 30, 1999, the company had  outstanding  purchased  natural gas
     options covering  approximately 31 million mcf and sold natural gas options
     covering  approximately  73 million mcf.  The options  consisted of put and
     call  contracts  that related to the company's  remaining  1999 US lower 48
     production,  to the future production of the company's Northrock subsidiary
     for the  remainder  of 1999  through  the year 2004,  and to the  company's
     overall risk management  activities.  At September 30, 1999, the fair value
     of these options were  approximately  $(6) million.  The fair values of the
     options were determined by dealer quotes, where available,  or by financial
     modeling  using  underlying  commodity  prices.  Net premiums  paid for the
     options  totaled $1 million.  Approximately  90 percent of the options were
     related to the company's non-trading activities. At September 30, 1999, the
     company's share (net of minority  interests) of pre-tax  unrealized  losses
     related to its non-trading  natural gas option  activity was  approximately
     $14  million.  Approximately  $6 million of the $14 million  relates to the
     company's interest in Northrock.

     The  company had  purchased  crude oil options  covering  approximately  43
     million  barrels  and sold  crude oil  options  covering  approximately  73
     million barrels outstanding at September 30, 1999. The options consisted of
     put and call  contracts  that related to the company's  remaining  1999 and
     early  2000  production,  to  the  production  of the  company's  Northrock
     subsidiary  for the  remainder  of 1999  through  the year  2002 and to the
     company's overall risk management activities.  At September 30, 1999, these
     options had fair values of approximately $(18) million.  The fair values of
     the  options  were  determined  by dealer  quotes  where  available,  or by
     financial modeling using underlying commodity prices. Net premiums paid for
     the  options  totaled $2 million.  Approximately  70 percent of the options
     were related to the  company's  non-trading  activities.  At September  30,
     1999, the company's share (net of minority interests) of pre-tax unrealized
     losses  related  to  its   non-trading   crude  oil  option   activity  was
     approximately  $21  million.  Approximately  $3 million of the $21  million
     relates to the company's interest in Northrock.

     At September  30, 1999,  the company had a ten-year  natural gas price swap
     agreement  outstanding.  The agreement effectively refloats the fixed price
     the company  received in January  1999 for a ten-year  natural gas pre-paid
     forward  sale.  As  the   counterparty  to  the  swap  agreement  remits  a
     current-index-price payment amount to the company based upon volumes in the
     swap  agreement,  the company  remits a fixed-price  payment  amount to the
     counterparty.  The pre-tax  deferred gain related to the swap  agreement at
     September 30, 1999, was approximately $16 million. This gain is offset by a
     corresponding loss on the fixed price physical sales contract.

     The company's Global Trade segment recorded pre-tax losses of approximately
     $10 million and $5 million on its trading  activities for the third quarter
     and first nine months of 1999, respectively.

(10) Accrued Abandonment, Restoration and Environmental Liabilities

     At  September  30,  1999,  the  company had  accrued  $464  million for the
     estimated   future  costs  to  abandon  and  remove  wells  and  production
     facilities.  The total costs for abandonments are predominantly accrued for
     on a  unit-of-production  basis and are estimated to be approximately  $655
     million.  This  estimate  was derived in large part from  abandonment  cost
     studies  performed by outside  firms and is used to calculate the amount to
     be  amortized.   The  company's  reserve  for   environmental   remediation
     obligations  at  September  30, 1999 totaled  $247  million,  of which $145
     million was included in current liabilities.

(11) Contingent Liabilities

          The  company  has  certain  contingent  liabilities  with  respect  to
          material existing or potential claims, lawsuits and other proceedings,
          including  those  involving  environmental,  tax  and  other  matters,
          certain of which are discussed more  specifically  below.  The company
          accrues  liabilities  when it is probable  that  future  costs will be
          incurred and such costs can be reasonably estimated. Such accruals are
          based on developments to date, the company's estimates of the outcomes
          of these matters and its  experience  in  contesting,  litigating  and
          settling other matters. As the scope of the liabilities becomes better
          defined, there will be changes in the estimates of

                                       8

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

     future costs, which could have a material effect on the company's future
     results of operations and financial condition or liquidity.

     Environmental  matters  - The  company  is  subject  to loss  contingencies
     pursuant to federal,  state and local  environmental  laws and regulations.
     These include  existing and possible future  obligations to investigate the
     effects of the  release or  disposal  of certain  petroleum,  chemical  and
     mineral  substances at various sites;  to remediate or restore these sites;
     to  compensate  others for damage to property  and natural  resources,  for
     remediation and  restoration  costs and for personal  injuries;  and to pay
     civil  penalties  and,  in some  cases,  criminal  penalties  and  punitive
     damages.  These obligations  relate to sites owned by the company or others
     andare  associated  with past and present  operations,  including  sites at
     which the company has been  identified as a potentially  responsible  party
     (PRP)  under  the  federal   Superfund  laws  and  comparable  state  laws.
     Liabilities  are  accrued  when it is probable  that  future  costs will be
     incurred and such costs can be reasonably estimated.

     However,  in many  cases,  investigations  are not yet at a stage where the
     company is able to determine  whether it is liable or, even if liability is
     determined to be probable, to quantify the liability or estimate a range of
     possible exposure.  In such cases, the amounts of the company's liabilities
     are  indeterminate due to the potentially large number of claimants for any
     given site or exposure,  the unknown  magnitude of possible  contamination,
     the  imprecise and  conflicting  engineering  evaluations  and estimates of
     proper  clean-up  methods and costs,  the unknown  timing and extent of the
     corrective actions that may be required,  the uncertainty  attendant to the
     possible award of punitive damages,  the recent judicial recognition of new
     causes of action,  the present state of the law,  which often imposes joint
     and several and retroactive  liabilities on PRPs, the fact that the company
     is usually just one of a number of companies  identified as a PRP, or other
     reasons.

     As  disclosed in note 10, at  September  30, 1999,  the company had accrued
     $247 million for estimated future environmental  assessment and remediation
     costs at various sites where  liabilities  for such costs are probable.  At
     those sites where  investigations  or feasibility  studies have advanced to
     the stage of  analyzing  feasible  alternative  remedies  and/or  ranges of
     costs,  the  company  estimates  that it could  incur  possible  additional
     remediation costs aggregating approximately $195 million.

     Tax  matters - The  company  believes  it has  adequately  provided  in its
     accounts for tax items and issues not yet resolved.

     Other  matters - In  February  1996,  Bridas  Corporation  filed a petition
     against the company and others in the  District  Court of Fort Bend County,
     Texas,  alleging  that  the  defendants  conspired  to and  did  tortiously
     interfere  with Bridas'  rights under  agreements  with the  government  of
     Turkmenistan  to develop the Yashlar  Field and to transport  gas from that
     field to Pakistan. The petition also alleged that the defendants interfered
     with Bridas'  exclusive right to lay a gas pipeline in Afghanistan.  Bridas
     sought actual damages, as well as punitive damages, plus interest.  Bridas'
     expert  witnesses  stated in pre-trial  discovery that Bridas' total actual
     damages for loss of future profits were approximately $1.7 billion.  In the
     alternative,  Bridas was  expected to seek an award of  approximately  $430
     million with respect to its total expenditures in Turkmenistan.  In October
     1998, the court granted the  defendants'  motion for summary  judgement and
     dismissed the action. In March 1999, Bridas filed a notice of appeal of the
     dismissal.

     In May 1999, a Canadian subsidiary of the company acquired an approximately
     46 percent  controlling  interest in Northrock  Resources Ltd.  (Northrock)
     (see note 13). Northrock has the right, until December 31, 1999, to require
     that the company purchase additional  Northrock common shares from treasury
     shares at a price of C$15 per  share,  up to a maximum  ownership  level of
     49.9 percent.

     In 1998,  the company  signed a letter  agreement  regarding the Transocean
     Discoverer  Spirit  deepwater  drill ship with a minimum daily rate of $210
     thousand for five years.  The drill ship is  scheduled  for delivery in the
     Gulf of Mexico in 2000.

                                       9

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

     The company also has certain other  contingent  liabilities with respect to
     litigation,  claims,  and  contractual  agreements  arising in the ordinary
     course of business.  Although these  contingencies could result in expenses
     or judgments that could be material to the company's  results of operations
     for a given reporting  period, on the basis of management's best assessment
     of the  ultimate  amount  and  timing of these  events,  such  expenses  or
     judgments  are  not  expected  to have a  material  adverse  effect  on the
     company's consolidated financial condition or liquidity.

(12)  Unocal guarantees certain  indebtedness of Union Oil.  Summarized below is
      financial information for Union Oil and its consolidated subsidiaries:




Summarized Financial Data of Union Oil

                                                                                     For the Three Months        For the Nine Months
                                                                                      Ended September 30          Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                               1999                1998       1999           1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
Total revenues ...............................................................  $1,589              $1,394     $4,375         $3,998
Total costs and other deductions
   (including income taxes) ..................................................   1,558               1,349      4,314          3,819
                                                                                ----------------------------------------------------
Net Earnings..................................................................  $   31              $   45     $   61         $  179
                                                                                ====================================================




                                                                                           At September 30        At December 31 (a)
                                                                                ----------------------------------------------------
Millions of dollars                                                                                   1999                      1998
- ------------------------------------------------------------------------------------------------------------------------------------
Current assets ...............................................................                      $1,360                    $1,388
Noncurrent assets ............................................................                       7,344                     6,583
Current liabilities ..........................................................                       1,345                     1,406
Noncurrent liabilities .......................................................                       4,688                     3,852
Shareholder's equity .........................................................                       2,671                     2,713

<FN>
(a)  Audited
</FN>


(13) Acquisition of Assets

     In May 1999, a Canadian  subsidiary of the company  acquired an approximate
     46-percent controlling interest in Northrock Resources Ltd. (Northrock),  a
     Canadian oil and gas exploration and production company,  for approximately
     $184  million.  The  acquisition  was  accounted  for  as a  purchase.  The
     investment  was  effected  by  the  acquisition  of 10  million  shares  of
     Northrock common stock at C$14 per share pursuant to a partial tender offer
     to Northrock's  shareholders  and 7.64 million  shares of Northrock  common
     stock at C$16 per share pursuant to a private placement. The acquisition is
     part  of  the  company's  overall  North  American  natural  gas  strategy.
     Northrock is fully  consolidated in the company's  financial  results as of
     the acquisition date.

(14) Minority Interests

     In April  1999,  the company  contributed  fixed-price  overriding  royalty
     interests from its working interest shares in certain oil and gas producing
     properties  in the Gulf of  Mexico to Spirit  Energy 76  Development,  L.P.
     (Spirit LP), a limited partnership.  In exchange for its overriding royalty
     contributions,  valued at $304  million,  the  company  received an initial
     general  partnership  interest of approximately 55 percent in Spirit LP. An
     unaffiliated  investor  contributed $250 million in cash to the partnership
     in exchange for an initial limited partnership interest of approximately 45
     percent.  Minority interests increased by approximately $244 million at the
     close  of this  transaction.  The  fixed-price  overrides  are  subject  to
     economic  limitations of production from the affected  fields.  The limited
     partner is  entitled to receive a priority  allocation  of profits and cash
     distributions.  The  partnership  has a maximum  term of 20 years,  but may
     terminate after six years, subject to certain conditions.

                                       10

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

     As discussed in note 13, in May 1999, a Canadian  subsidiary of the company
     acquired an  approximate  46-percent of  Northrock.  The net result of this
     transaction  was to  increase  minority  interests  by  approximately  $145
     million as of the acquisition date.

(15) Restructuring Costs

     The company adopted a restructuring  plan during the second quarter of 1999
     that resulted in the accrual of a $18 million pre-tax restructuring charge.
     This amount included the costs of terminating  approximately 250 employees.
     The charge was included in selling,  administrative  and general expense on
     the  consolidated  earnings  statement.  The plan  involves the blending of
     several International and Geothermal organizations, a manpower optimization
     program  in  Thailand,  cost  cutting  and  efficiency  initiatives  in the
     company's  Diversified  Business and Exploration and Production  Technology
     groups and a company-wide shared resources initiative.

     Approximately  100  of the  affected  employees  were  from  the  company's
     International  operations,  95 were from the Diversified Business group and
     55  were  from  other   organizations,   including   corporate  staff.  The
     restructuring  charge  included  approximately  $16 million for termination
     costs to be paid to the employees over time and about $2 million related to
     outplacement and other costs.

     At October 26, 1999,  207  employees  had been  terminated  or had received
     termination notices as the result of the plan with additional  terminations
     scheduled during the remainder of 1999 and early 2000.

     In the fourth quarter of 1998,  the company  adopted a  restructuring  plan
     that resulted in the accrual of a $27 million pre-tax restructuring charge.
     This amount included the costs of terminating  approximately 475 employees.
     The charge was included in selling,  administrative  and general expense on
     the consolidated  earnings  statement.  The plan involves the suspension of
     mining  and  manufacturing  operations  at the  Mountain  Pass,  California
     lanthanide  facility,  a change in mining  operations  at the  Questa,  New
     Mexico molybdenum facility, the withdrawal from non-strategic activities in
     Central Asia and a reduction in activities of various business units.

     Approximately 240 of the affected  employees were from the company's mining
     operations,  95 were from various exploration and production business units
     and 140 were support  personnel  at various  locations.  The  restructuring
     charge included  approximately $23 million for termination costs to be paid
     to the employees  over time,  about $2 million in benefit plan  curtailment
     costs and about $2 million related to outplacement and other costs.

     At October 26, 1999,  414  employees  had been  terminated  or had received
     termination  notices as a result of the plan, with additional  terminations
     scheduled during the remainder of 1999 and early 2000.

     The amount of unpaid benefits  remaining on the consolidated  balance sheet
     at September 30, 1999 was $20 million for the two plans combined.

                                       11

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)

(16) Segment Information

     The company's reportable segments are:  Exploration and Production,  Global
     Trade,   Geothermal  &  Power   Operations  and   Diversified   Businesses.
     Unallocated  corporate   administrative  and  general  expenses  and  other
     miscellaneous  operations are included under the Corporate and  Unallocated
     heading.  Effective  January  1,  1999,  the  Pipelines  business  unit was
     transferred  from the  Diversified  Business  segment to the  Global  Trade
     segment.  For an expanded  description of the  activities  conducted by the
     company's  business  segments,  see pages 74 and 75 of the  company's  1998
     Annual Report on Form 10-K.
 

                                             --------------------------------------------------------------------------------
Segment Information                                    Exploration & Production                                   Geothermal
For the Three Months                             United States          International        Global Trade          & Power
ended September 30, 1999                       Spirit                  Far                                        Operations
Millions of dollars                           Energy 76   Alaska      East       Other  Global Trade Pipelines
                                             --------------------------------------------------------------------------------
                                                                                               
External sales & operating revenues .........  $    1    $   33     $  188      $ 69     $ 1,097    $     9         $    36
Other revenue (loss) ........................      --        --         (3)        5           4         12               3
Inter-segment revenues ......................     277        13         40        26           2          3              --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     278        46        225       100       1,103         24              39

Operating profit (loss) before income taxes
  and minority interest in earnings .........      32        10        107        (8)        (11)        15              11
    Income taxes (benefit) ..................      11         4         29        (2)         (6)         2               5
    Minority interest in earnings ...........       4        --         --         1          --         --              --
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................      17         6         78        (7)         (5)        13               6

Assets (at September 30, 1999) ..............   2,106       304      1,875      1,530        396        249             511





- -----------------------------------------------------------------------------------------------------------------------------
                                                 Diversified                  Corporate & Unallocated                Totals
                                                  Business

                                                 Ag    Carbon &    Admn &  Net Int  Env &        New
                                              Products Minerals    General   Exp  Litigation   Ventures  Other(a)
- -----------------------------------------------------------------------------------------------------------------------------

                                                                                            
External sales & operating revenue...........  $  69     $ 42       $ --   $  --   $  --        $ --     $   2      $ 1,546
Other revenue (loss) ........................     --        6         --       6      --          --         9           42
Inter-segment revenues ......................     --       --         --      --      --          --      (361)          --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     69       48         --       6      --          --      (350)       1,588

Operating profit (loss) before income taxes
  and minority interest in earnings .........    (14)       7        (33)    (45)    (21)         (5)       (7)          38
    Income taxes (benefit) ..................     (6)      --        (10)     (7)     (9)         (1)       --           10
    Minority interest in earnings ...........     --        1         --      (2)     --          --        --            4
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................     (8)       6        (23)    (36)    (12)         (4)       (7)          24

Assets (at September 30, 1999) ..............    276      272         --      --      --           3     1,166        8,688

<FN>
(a) Includes eliminations and consolidation adjustments.
</FN>

                                       12

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)


                                             --------------------------------------------------------------------------------
Segment Information                                    Exploration & Production                                   Geothermal
For the Three Months                             United States         International        Global Trade           & Power
ended September 30, 1998                       Spirit                 Far                                         Operations
Millions of dollars                           Energy 76  Alaska      East       Other  Global Trade Pipelines
                                             --------------------------------------------------------------------------------
                                                                                               
External sales & operating revenues .........  $   26    $   25     $  181      $ 36     $   815    $    10         $    44
Other revenue (loss) ........................       1        --         (6)       77          --         11              13
Inter-segment revenues ......................     219        17         63         4          --          3              --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     246        42        238       117         815         24              57

Operating profit (loss) before income taxes
  and minority interest in earnings .........     (14)        3        108        38           5         16              22
    Income taxes (benefit) ..................      (6)        1         68        11           2          2               6
    Minority interest in earnings ...........       1        --         --        --          --         --              --
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................      (9)        2         40        27           3         14              16

Assets (at December 31, 1998) ...............   2,094       329      1,848       641         317        298             598



- -----------------------------------------------------------------------------------------------------------------------------
                                                 Diversified                  Corporate & Unallocated                Totals
                                                  Business

                                                 Ag    Carbon &    Admn &  Net Int  Env &         New
                                              Products Minerals    General   Exp  Litigation    Ventures Other(a)
- -----------------------------------------------------------------------------------------------------------------------------
                                                                                            
External sales & operating revenue...........  $  84     $ 52       $ --   $  --   $  --        $ --     $  13      $ 1,286
Other revenue (loss) ........................     --        5         --       7      --          (5)        5          108
Inter-segment revenues ......................     --       --         --      --      --          --      (306)          --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     84       57         --       7      --          (5)     (288)       1,394

Operating profit (loss) before income taxes
  and minority interest in earnings .........      9       (1)       (37)    (40)    (19)         (7)       (6)          77
    Income taxes (benefit) ..................     (3)      (1)       (13)     (7)     (7)         (3)      (11)          39
    Minority interest in earnings ...........     --        1         --      --      --          --        --            2
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................     12       (1)       (24)    (33)    (12)         (4)        5           36

Assets (at December 31, 1998) ...............    305      419         --      --      --          --     1,103        7,952
<FN>
(a) Includes eliminations and consolidation adjustments.
</FN>



                                             --------------------------------------------------------------------------------
Segment Information                                    Exploration & Production                                   Geothermal
For the Nine Months                              United States         International        Global Trade            & Power
ended September 30, 1999                       Spirit                  Far                                        Operations
Millions of dollars                           Energy 76    Alaska      East     Other  Global Trade  Pipelines
                                             --------------------------------------------------------------------------------
                                                                                               
External sales & operating revenues .........  $   62    $   86     $  523      $ 161    $ 2,887    $    28         $   113
Other revenue (loss) ........................       6        --         (5)        15          4         43               8
Inter-segment revenues ......................     695        46        127         40          5          8              --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     763       132        645        216      2,896         79             121

Operating profit (loss) before income taxes
  and minority interest in earnings .........      57        19        272        (33)        (8)        53              35
    Income taxes (benefit) ..................      19         7        105        (14)        (5)         7              14
    Minority interest in earnings ...........       7        --         --          2         --         --              --
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................      31        12        167        (21)        (3)        46              21

Assets (at September 30, 1999)...............   2,106       304      1,875      1,530        396        249             511



- -----------------------------------------------------------------------------------------------------------------------------
                                                 Diversified                  Corporate & Unallocated                Totals
                                                  Business

                                                 Ag    Carbon &     Admn &  Net Int  Env &       New
                                              Products Minerals     General   Exp  Litigation  Ventures Other(a)
- -----------------------------------------------------------------------------------------------------------------------------
                                                                                            
External sales & operating revenue...........  $ 245     $121       $ --   $  --   $  --        $ --      $  4      $ 4,230
Other revenue (loss) ........................     --       22         --      17      --          --        34          144
Inter-segment revenues ......................     --       --         --      --      --          --      (921)          --
                                             --------------------------------------------------------------------------------
Total  Revenues .............................    245      143         --      17      --          --      (883)       4,374

Operating profit (loss) before income taxes
  and minority interest in earnings .........    (11)      21        (94)   (127)    (39)        (12)      (34)          99
    Income taxes (benefit) ..................     (9)      --        (29)    (23)    (15)         (3)       (3)          51
    Minority interest in earnings ...........     --        2         --      (3)     --          --        --            8
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................     (2)      19        (65)   (101)    (24)         (9)      (31)          40

Assets (at September 30, 1999) ..............    276      272         --      --      --           3     1,166        8,688
<FN>
(a) Includes eliminations and consolidation adjustments.
</FN>

                                       13


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
(UNAUDITED)


                                             --------------------------------------------------------------------------------
Segment Information                                    Exploration & Production                                   Geothermal
For the Nine Months                             United States          International        Global Trade           & Power
ended September 30, 1998                       Spirit                 Far                                         Operations
Millions of dollars                           Energy 76   Alaska      East      Other   Global Trade Pipelines
                                             --------------------------------------------------------------------------------
                                                                                               
External sales & operating revenues .........  $   72    $   82     $  519      $ 122    $ 2,230    $    30         $   121
Other revenue (loss) ........................       1        --        (25)       178         --         39              42
Inter-segment revenues ......................     699        56        192          8          1          7              --
                                             --------------------------------------------------------------------------------
Total  revenues .............................     772       138        686        308      2,231         76             163

Operating profit (loss) before income taxes
  and minority interest in earnings .........      26        24        320         84         21         53              66
    Income taxes (benefit) ..................       9         9        194         27          8          9              22
    Minority interest in earnings ...........       2        --         --         --         --         --              --
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................      15        15        126         57         13         44              44

Assets (at December 31, 1998) ...............   2,094       329      1,848        641        317        298             598



- -----------------------------------------------------------------------------------------------------------------------------
                                                 Diversified                  Corporate & Unallocated                Totals
                                                  Business

                                                 Ag    Carbon &    Admn &  Net Int  Env &        New
                                              Products Minerals    General   Exp  Litigation   Ventures Other(a)
- -----------------------------------------------------------------------------------------------------------------------------
                                                                                            
External sales & operating revenues..........  $ 299     $171       $ --   $  --   $  --        $ --     $  37      $ 3,683
Other revenue (loss) ........................      1       23         --      24      --          (5)       37          315
Inter-segment revenues ......................     --       --         --      --      --          --      (963)         --
                                             --------------------------------------------------------------------------------
Total  revenues .............................    300      194         --      24      --          (5)     (889)       3,998

Operating profit (loss) before income taxes
  and minority interest in earnings .........     40       26        (87)   (106)   (119)        (26)       21          343
    Income taxes (benefit) ..................      7        2        (29)    (23)    (44)        (10)       (4)         177
    Minority interest in earnings ...........     --        5         --      --      --          --        --            7
                                             --------------------------------------------------------------------------------
Net earnings (loss) .........................     33       19        (58)    (83)    (75)        (16)       25          159

Assets (at December 31, 1998) ...............    305      419         --      --      --          --     1,103        7,952
<FN>
(a) Includes eliminations and consolidation adjustments.
</FN>

                                       14


OPERATING HIGHLIGHTS                                                                                    UNOCAL CORPORATION
(UNAUDITED)


                                                                             For the Three Months      For the Nine Months
                                                                              Ended September 30        Ended September 30
                                                                           -----------------------------------------------
                                                                               1999          1998         1999        1998
                                                                           -----------------------------------------------
NET DAILY PRODUCTION
   Crude oil and condensate (thousand barrels daily)
      United States
 ......................................................................                                
         Spirit Energy 76 ................................................      40             44          40           44
         Alaska ..........................................................      27             27          27           29
                                                                           -----------------------------------------------
           Total United States ...........................................      67             71          67           73

     International (a)
         Far East ........................................................      73             81          72           83
         Other (b) .......................................................      40             31          35           31
                                                                           -----------------------------------------------
           Total International ...........................................     113            112         107          114
                                                                           -----------------------------------------------
      Worldwide ..........................................................     180            183         174          187
                                                                           ===============================================

   Natural gas (million cubic feet daily)
      United States
         Spirit Energy 76 ................................................     729            808         756          795
         Alaska ..........................................................     106            118         124          126
                                                                           -----------------------------------------------
           Total United States ...........................................     835            926         880          921

      International (a)
         Far East ........................................................     884            828         859          851
         Other (b) .......................................................     149             37          93           53
                                                                           -----------------------------------------------
           Total International ...........................................   1,033            865         952          904
                                                                           -----------------------------------------------
      Worldwide ..........................................................   1,868          1,791       1,832        1,825
                                                                           ===============================================

<FN>
(a) Includes host countries' shares of:
      Crude oil and condensate ...........................................      30              6          23           11
      Natural gas ........................................................      95             44          86           44

(b) Production includes 100% of Northrock Resources Ltd. in Canada of:
      Crude oil and condensate ...........................................       8             --           4           --
      Natural gas ........................................................     110             --          56           --
</FN>

                                       15




OPERATING HIGHLIGHTS                                                                                    UNOCAL CORPORATION
(UNAUDITED)


                                                                             For the Three Months      For the Nine Months
                                                                              Ended September 30        Ended September 30
                                                                           -----------------------------------------------
                                                                               1999          1998         1999        1998
                                                                           -----------------------------------------------
AVERAGE PRICES (a)
   Crude oil (per barrel)
      United States
 ......................................................................                                
         Spirit Energy 76 ................................................ $  18.32      $   12.20    $  14.87    $   12.80
         Alaska ..........................................................    14.50           9.35       11.43         9.69

           Total United States ...........................................    16.77          11.11       13.43        11.56

      International
         Far East ........................................................ $  16.43      $   12.28    $  13.75    $   13.02
         Other ...........................................................    16.69          10.58       13.96        11.07

           Total International ...........................................    16.55          11.82       13.83        12.48

      Worldwide .......................................................... $  16.65      $   11.54    $  13.65    $   12.09


   Natural gas (per thousand cubic feet)
      United States
         Spirit Energy 76 ................................................ $   2.26      $    1.97    $   2.09    $    2.08
         Alaska ..........................................................     1.20           1.20        1.20         1.38

           Total United States ...........................................     2.12           1.87        1.96         1.98

      International
         Far East ........................................................ $   2.02      $    2.23    $   1.97    $    2.10
         Other ...........................................................     2.09           2.38        1.99         2.26

           Total International ...........................................     2.03           2.23        1.98         2.10

      Worldwide .......................................................... $   2.07      $    2.04    $   1.97    $    2.04


<FN>
(a)  average prices include hedging gains and losses, but exclude other Global Trade margins.
</FN>

                                       16


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

The following  discussion and analysis of the consolidated  financial  condition
and  results  of  operations  of  Unocal  should  be  read in  conjunction  with
Management's  Discussion  and  Analysis in Item 7 of the  company's  1998 Annual
Report on Form  10-K.  Unless  otherwise  specified,  the  following  discussion
pertains to the company's continuing operations.

CONSOLIDATED RESULTS


                                                                                        For the Three Months     For the Nine Months
                                                                                         Ended September 30       Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss) ......................................................          $  24      $  36        $  40       $ 159
Less: special items (net of tax)
    Environmental and litigation provisions/proceeds............................            (12)       (10)         (14)        (71)
    Kenai plant accident........................................................            ( 6)        --          ( 6)         --
    Asset sales ................................................................             --         49          (10)        102
    Deferred tax adjustments ...................................................             --        ( 7)          --         (21)
    Restructuring provision ....................................................             --         --          (11)         --
    Insurance settlement .......................................................             --         --           --          11
                                                                                ----------------------------------------------------
    Total special items ........................................................            (18)        32          (41)         21
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $  42      $   4        $  81       $ 138
                                                                                ====================================================

Adjusted  after-tax  earnings increased $38 million in the third quarter of 1999
compared  with the same  period  last  year.  The  third  quarter  1999  results
benefited from higher worldwide average crude oil prices,  which increased by 44
percent from the third quarter of 1998.  In addition,  the third quarter of 1999
benefited from lower dry hole costs and a lower effective tax rate primarily due
to a change in the Thailand  foreign exchange rate. These factors were partially
offset by lower  crude oil and natural  gas sales  volumes and reduced  earnings
from  non-exploration and production  businesses.  In the third quarter of 1999,
the hedge program lowered sale realizations for crude oil and natural gas by $23
million after-tax.

Adjusted  after-tax  earnings  decreased $57 million in the first nine months of
1999 compared with the first nine months of 1998. The major factors contributing
to the decrease were lower  worldwide  crude oil and natural gas sales  volumes,
lower natural gas prices, lower agricultural  products prices,  reduced earnings
from other  non-exploration  and production  businesses and higher corporate net
interest expense.  These factors were partially offset by higher worldwide crude
oil prices, a lower effective tax rate primarily due to a change in the Thailand
foreign  exchange  rate and lower dry hole  costs.  For the first nine months of
1999, the hedge program lowered sale  realizations for crude oil and natural gas
by $16 million after-tax.

EXPLORATION AND PRODUCTION

The company  engages in oil and gas  exploration,  development,  and  production
worldwide.

United States - Included in the United States  category are Spirit Energy 76 and
Alaska oil and gas operations. The Spirit Energy 76 business unit is responsible
for oil and gas  operations  in the Lower 48 United  States with emphasis on the
shelf and  deepwater  areas in the Gulf of Mexico and the Permian  Basin in West
Texas.  A  substantial  portion of the crude oil and natural gas produced in the
United States is sold to the company's  Global Trade  segment.  The remainder is
sold to third parties or, in the case of Alaska natural gas production,  used in
the company's agricultural products operations.

                                       17

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


                                                                                        For the Three Months     For the Nine Months
                                                                                         Ended September 30       Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss)
   Spirit Energy 76 ............................................................          $  17      $ ( 9)       $  31       $  15
   Alaska ......................................................................              6          2           12          15
                                                                                ----------------------------------------------------
   Total .......................................................................             23        ( 7)          43          30
Less: special items (net of tax)
   Litigation provision/proceeds  (Spirit Energy 76)............................             --         --            7          --
   Litigation provisions (Alaska)...............................................             (2)        --           (4)         --
                                                                                ----------------------------------------------------
   Total special items .........................................................             (2)        --            3          --
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $  25      $ ( 7)       $  40       $  30
                                                                                ====================================================

Adjusted  after-tax  earnings increased $32 million in the third quarter of 1999
compared  with the same period last year.  The  increase  was  primarily  due to
higher United States average crude oil and natural gas prices,  which  increased
by $5.66 per barrel and $0.25 per MCF,  respectively.  In addition to the higher
prices,  dry hole costs were lower than the same period last year. These factors
were partially offset by lower United States natural gas sales volumes and lower
Spirit  Energy 76 crude oil sales  volumes.  In the third  quarter of 1999,  the
hedge  program  lowered sale  realizations  for crude oil and natural gas by $17
million after-tax.

Adjusted  after-tax  earnings  increased $10 million in the first nine months of
1999 compared with the first nine months of 1998. The increase was primarily due
to higher  United  States  crude  oil  prices,  lower  dry hole  costs and lower
operating  expenses.  These factors were partially offset by lower United States
crude oil and natural gas sales volumes, increased exploratory land amortization
and lower  Alaska  natural  gas prices.  For the first nine months of 1999,  the
hedge  program  lowered sale  realizations  for crude oil and natural gas by $10
million after-tax.

International - Includes the company's international  exploration and production
activities and related business development  activities.  The company is engaged
in oil and gas  production  activities  in eight  foreign  countries:  Thailand,
Indonesia, Canada, The Netherlands, Azerbaijan, Myanmar, the Democratic Republic
of Congo and Bangladesh.


                                                                                        For the Three Months     For the Nine Months
                                                                                         Ended September 30       Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss)
     Far East ..................................................................          $  78      $  40        $ 167       $ 126
     Other .....................................................................            ( 7)        27          (21)         57
                                                                                ----------------------------------------------------
     Total .....................................................................             71         67          146         183
Less: special items (net of tax)
     Asset sales (Other) .......................................................             --         49           --         102
     Deferred tax adjustment (Far East) ........................................             --        ( 7)          --         (21)
     Litigation proceeds (Far East) ............................................             --         --            2          --
                                                                                ----------------------------------------------------
     Total special items .......................................................             --         42            2          81
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $  71      $  25        $ 144       $ 102
                                                                                ====================================================

Adjusted  after-tax  earnings increased $46 million in the third quarter of 1999
compared  with the same period last year.  The  increase  was  primarily  due to
higher average crude oil prices,  lower dry hole costs,  lower  exploration  and
operating expenses,  and a lower effective tax rate primarily due to a change in
the Thailand  foreign  exchange rate.  Partially  offsetting  these factors were
lower Far East  crude oil  sales  volumes,  primarily  in  Indonesia,  and lower
International natural gas prices.

Adjusted  after-tax  earnings  increased $42 million in the first nine months of
1999 compared with the first nine months of 1998. The major factors contributing
to the increase were higher  average  crude oil prices,  lower  exploration  and
operating  expenses,  lower dry hole costs,  lower  depreciation,  depletion and
amortization  expense,  and a lower effective tax rate primarily due to a change
in the Thailand  foreign  exchange rate.  These factors were partially offset by
lower crude oil sales volumes,  primarily in Indonesia,  and lower international
natural gas prices.

                                       18

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

For the third  quarter  and the first  nine  months of 1999,  the hedge  program
lowered sale realizations for crude oil by $6 million after-tax.

GLOBAL TRADE

The Global Trade segment  conducts most of the  company's  worldwide  crude oil,
condensate  and natural gas trading and marketing  activities and is responsible
for  commodity-specific  risk  management  activities  on  behalf of most of the
company's exploration and production segment.  Global Trade also purchases crude
oil,  condensate and natural gas from certain of the company's  royalty  owners,
joint venture partners and other  unaffiliated oil and gas producers for resale.
In addition,  Global Trade takes  pricing  positions in  hydrocarbon  derivative
instruments.  Global Trade also manages the company's  Pipelines  business unit,
which holds the company's equity interests in affiliated pipeline companies.


                                                                                        For the Three Months     For the Nine Months
                                                                                         Ended September 30       Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss)
   Global Trade ................................................................          $ ( 5)     $   3        $ ( 3)      $  13
   Pipelines ...................................................................             13         14           46          44
                                                                                ----------------------------------------------------
     Total .....................................................................              8         17           43          57
Less: special items (net of tax) ...............................................             --         --           --          --
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $   8      $  17        $  43       $  57
                                                                                ====================================================

Adjusted  after-tax  earnings  decreased $9 million in the third quarter of 1999
compared with the same period last year. The decrease was primarily due to lower
margins on domestic natural gas trading.

Adjusted  after-tax  earnings decreased $14 million for the first nine months of
1999 compared with the same period last year.  The decrease was primarily due to
lower margins on domestic natural gas and crude oil trading.

GEOTHERMAL AND POWER OPERATIONS

The Geothermal and Power Operations segment supplies  geothermal steam for power
generation,  with  operations in the  Philippines  and Indonesia.  The segment's
current  activities  also include the operation of power plants in Indonesia and
an interest in a gas-fired power plant under  construction in Thailand.


                                                                                       For the Three Months      For the Nine Months
                                                                                        Ended September 30        Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss) ......................................................          $   6      $  16        $  21       $  44
Less: special items (net of tax)
    Asset sales (a) ............................................................             --         --          (10)         --
                                                                                ----------------------------------------------------
Adjusted after-tax earnings ....................................................          $   6      $  16        $  31        $ 44
                                                                                ====================================================
<FN>
(a) Represents  the first quarter sale of a geothermal production operation at The Geysers
in Northern California
</FN>

Adjusted  after-tax  earnings decreased $10 million in the third quarter of 1999
compared  with the same  period  last year.  Lower  affiliate  earnings,  higher
foreign  exchange  losses in Indonesia and the loss of earnings from The Geysers
assets in Northern  California  contributed to the lower results.  These factors
were partially offset by lower Indonesia receivable provisions.

Adjusted  after-tax  earnings  decreased $13 million in the first nine months of
1999  compared  with the first nine months of 1998.  This decrease was primarily
due to the  difference  in the  recognition  of  cash  received  related  to the
construction  of the Salak  power  plant  units 4  through  6,  lower  affiliate
earnings  and  the  loss  of  earnings  from  The  Geysers  assets  in  Northern
California.  These factors were partially  offset by lower Indonesia  receivable
provisions.

                                       19

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

DIVERSIFIED BUSINESS GROUP

The Agricultural  Products  business unit  manufactures,  transports and markets
nitrogen-based  products for  agricultural  and industrial  uses. The Carbon and
Minerals business unit  manufactures and markets  petroleum coke,  graphites and
specialty minerals.


                                                                                       For the Three Months      For the Nine Months
                                                                                        Ended September 30        Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss)
   Agricultural Products .......................................................          $ ( 8)      $ 12        $ ( 2)      $  33
   Carbon and Minerals .........................................................              6        ( 1)          19          19
                                                                                ----------------------------------------------------
   Total .......................................................................            ( 2)        11           17          52
Less: special items (net of tax)
   Kenai plant accident (Agricultural Products).................................             (6)        --          ( 6)         --
   Environmental and litigation provisions (Carbon and Minerals) ...............             --         (2)         ( 3)         (4)
                                                                                ----------------------------------------------------
    Total special items ........................................................            ( 6)        (2)         ( 9)         (4)
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $   4      $  13        $  26       $  56
                                                                                ====================================================

Adjusted  after-tax  earnings  decreased $9 million in the third quarter of 1999
compared with the same period last year. The decrease was primarily due to lower
agricultural  products  prices and lower tax  benefits,  the effect of which was
partially offset by decreased mining costs and increased affiliate earnings.

Adjusted  after-tax  earnings  decreased $30 million in the first nine months of
1999  compared  with the first nine months of 1998.  This decrease was primarily
due to lower agricultural products prices.

CORPORATE AND UNALLOCATED

Corporate and Unallocated includes all unallocated corporate  administrative and
general   items,   miscellaneous   operations,   including   real  estate,   and
non-exploration  and production new ventures  activities.  Net interest  expense
represents  interest expense,  net of interest income and capitalized  interest.


                                                                                       For the Three Months      For the Nine Months
                                                                                        Ended September 30        Ended September 30
                                                                                ----------------------------------------------------
Millions of dollars                                                                         1999       1998         1999        1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                  
After-tax earnings (loss)
   Administrative and general expense ..........................................          $ (23)     $ (24)       $ (65)      $ (58)
   Net interest expense ........................................................            (36)       (33)        (101)        (83)
   Environmental and litigation expense ........................................            (12)       (12)         (24)        (75)
   New ventures ................................................................             (4)        (4)          (9)        (16)
   Other .......................................................................            ( 7)         5          (31)         25
                                                                                ----------------------------------------------------
   Total .......................................................................            (82)       (68)        (230)       (207)
Less: special items (net of tax)
    Environmental and litigation provisions ....................................            (10)       ( 8)         (16)        (67)
    Restructuring provision (Other) ............................................             --         --          (11)         --
    Insurance settlement (Other) ...............................................             --         --           --          11
                                                                                ----------------------------------------------------
    Total special items ........................................................            (10)       ( 8)         (27)        (56)
                                                                                ----------------------------------------------------
Adjusted after-tax earnings (loss) .............................................          $ (72)     $ (60)       $(203)      $(151)
                                                                                ====================================================

The adjusted  after-tax  loss  increased by $12 million in the third  quarter of
1999 compared with the same period last year. The third quarter of 1998 included
a net benefit  related to certain tax  adjustments,  in the Other  category.  In
addition,  the third  quarter of 1999 had higher  interest  expense due to lower
capitalized interest and increased debt levels.

The adjusted after-tax loss increased by $52 million in the first nine months of
1999  compared  with the same period last year.  The negative  factors  included
higher interest expense due to lower capitalized interest and increased

                                       20

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

debt levels, lower pension income and higher employee benefit-related  expenses,
both in the Other category. The first nine months of 1998 included a net benefit
related to certain tax  adjustments  and higher  earnings and  dividends  from a
petroleum industry mutual insurance company,  both in the Other category.  Those
factors  were  partially  offset by lower new  ventures  expenditures  and gains
related to miscellaneous asset sales, in the Other category.

FINANCIAL CONDITION AND CAPITAL EXPENDITURES

For the  first  nine  months  of  1999,  net cash  flow  provided  by  operating
activities was $517 million compared with $711 million in the same period a year
ago. This decrease reflects the effects of lower worldwide crude oil and natural
gas sales volumes,  lower natural gas prices, lower agricultural products prices
and reduced earnings from other non-exploration and production businesses. These
factors were  partially  offset by higher  worldwide  crude oil prices.  Working
capital and other changes  included the effects of increased net foreign  income
tax  payments  over  refunds,  the  delivery of crude oil under a 1998  pre-paid
forward sale and increased  inventories.  Working capital changes benefited from
the receipt of $120 million in the first quarter of 1999 for a ten-year  natural
gas  pre-paid  forward  sale and the  advance  sale of  certain  domestic  trade
receivables in the third quarter of 1999.

Proceeds  from asset sales for the first nine months of 1999 were $163  million,
consisting  primarily of $101 million from the sale of the company's interest in
a geothermal operation at The Geysers in Northern  California,  completed in the
first quarter,  $27 million from the sale of Michigan oil and gas assets and $35
million  from  the  sale of other  miscellaneous  domestic  oil and gas and real
estate properties.

Capital  expenditures  for the first nine months of 1999  totaled  $761  million
compared  with $1,248  million in the same period a year ago.  The  decrease was
primarily  due  to  lower   worldwide   drilling   activities  and  lower  lease
acquisitions  in the Gulf of Mexico.  The company also spent $184 million in the
second quarter of 1999 to acquire an approximate  46-percent  ownership interest
in Northrock Resources Ltd. (Northrock). Total capital expenditures are expected
to be approximately $1.17 billion for 1999, excluding the Northrock acquisition.
The  company  will  continue  to  focus on  deepwater  exploration  programs  in
Indonesia and the Gulf of Mexico.

In the second quarter of 1999, the company  contributed  fixed-price  overriding
royalty  interests  from its  working  interest  shares in  certain  oil and gas
producing properties in the Gulf of Mexico to Spirit Energy 76 Development, L.P.
(Spirit LP), a limited  partnership.  The  fixed-price  overrides are subject to
economic limitations of production from the affected fields. In exchange for its
overriding royalty  contributions,  valued at $304 million, the company received
an initial general  partnership  interest of  approximately 55 percent in Spirit
LP. An unaffiliated investor contributed $250 million in cash to the partnership
in exchange for an initial  limited  partnership  interest of  approximately  45
percent.  The limited  partner is entitled to receive a priority  allocation  of
profits and cash distributions.

The company's  long-term debt was $2.83 billion at September 30, 1999,  compared
with  $2.56  billion  at  year-end  1998.  Most of this  increase  reflects  the
consolidation   of  the  company's   investment  in  Northrock,   including  its
outstanding  debt.  The  company's  debt-to-total  capitalization  ratio  was 52
percent at September 30, 1999, compared with 48 percent at year-end 1998.

                                       21

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

ENVIRONMENTAL MATTERS

At September 30, 1999,  the  company's  reserves for  environmental  remediation
obligations  totaled $247 million, of which $145 million was included in current
liabilities. During the third quarter of 1999, cash payments of $30 million were
applied  against the reserve.  The company also estimates that it possibly could
incur additional  remediation costs aggregating  approximately $195 million,  as
discussed in note 11 to the  consolidated  financial  statements.  The company's
total   environmental   reserve  amount  is  grouped  into  the  following  five
categories:


Reserve Summary
                                                                   September 30,
Millions of dollars                                                   1999
- --------------------------------------------------------------------------------
                                                                   
     Superfund and similar sites                                      $ 11
     Former company-operated sites                                      14
     Company facilities sold with retained liabilities                  50
     Inactive or closed company facilities                             125
     Active company facilities                                          47
- --------------------------------------------------------------------------------
        Total reserves                                                $247
================================================================================

OUTLOOK

Certain of the statements in this discussion,  as well as other  forward-looking
statements within this document, contain estimates and projections of amounts of
or  increases / decreases  in future  revenues,  earnings,  cash flows,  capital
expenditures, assets, liabilities and other financial items and of future levels
of or increases / decreases in reserves,  production,  sales  including  related
costs  and  prices,  and  other  statistical  items;  plans  and  objectives  of
management regarding the company's future operations, products and services; and
certain assumptions underlying such estimates,  projection plans and objectives.
While these forward-looking statements are made in good faith, future operating,
market,  competitive,  legal,  economic,  political,  environmental,  and  other
conditions and events could cause actual results to differ materially from those
in the foward-looking statements. See pages 40 and 41 of Management's Discussion
and Analysis in Item 7 of the  company's  1998 Annual  Report on Form 10-K for a
discussion of certain of such conditions and events, as well as pages 24 through
26 of this report.

The company's Spirit Energy 76 (Spirit)  business unit averaged 729 MMCF per day
of net  natural  gas  production  in the  third  quarter  of 1999.  The  company
estimates  that,  because of the  current  drilling  activity  and the return to
production of key wells after repairs,  Spirit's net natural gas production will
average approximately 750 MMCF per day in the fourth quarter of 1999.

The company drilled a deepwater well in the Sumatra sub-salt  prospect in Garden
Banks block 941 in the Gulf of Mexico during the third quarter of 1999. The well
encountered  mechanical  difficulties  before reaching its primary objective and
has been suspended until next year, when the larger  Discoverer Spirit drillship
will be delivered and drilling will be resumed.  During the third  quarter,  oil
was discovered on the K-2 deepwater  well, on Green Canyon block 562 in the Gulf
of  Mexico,  in  which  the  company  was  participating.   The  joint  interest
participants  decided to  temporarily  suspend  the well and  develop  plans for
appraisal of the hydrocarbon zone. The company was drilling an appraisal well of
the  McKinley  discovery  on  Garden  Banks  block  416 at the end of the  third
quarter.  The company is  participating  in the drilling of an appraisal well on
the Mad Dog discovery  which began at the end of the third quarter.  The company
is currently  evaluating  the Mirage  discovery  and no  additional  drilling is
expected this year.

During the third quarter of 1999, the company was the apparent  successful  high
bidder for interests in 15 lease blocks in the western Gulf of Mexico, including
seven deepwater blocks and eight shelf blocks. The company has been awarded nine
out of the fifteen blocks with the remaining blocks yet to be awarded.

                                       22

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

The  economic  situation  in Asia,  where  much of the  company's  international
activity is centered, remained largely unchanged from year-end 1998. The company
believes that the  governments  in the region are committed to  undertaking  the
reforms and restructuring  necessary to enable their nations to recover from the
downturn.

In  Thailand,  net natural gas sales are expected to average  approximately  600
MMCF per day in the fourth  quarter of 1999,  as compared with an average of 643
MMCF per day for the third quarter of 1999.  Production from the Pailin field in
the Gulf of  Thailand  started  in  August  of 1999 and is  currently  producing
approximately  185 MMCF (gross) per day in the fourth quarter.  Unocal Thailand,
Ltd., is operator of the Pailin field and holds a 35 percent working interest.

In Myanmar, commercial production from the Yadana field is now expected to begin
very late in 1999 or in early 2000.

The company received  approvals from  Indonesia's  national oil company to begin
initial  development  activities  on the West Seno and  Merah  Besar oil and gas
fields in the deepwater Kutei Basin, offshore East Kalimantan.  Unocal Makassar,
Ltd., a wholly owned  subsidiary,  is operator of the West Seno discovery in the
Makassar  Strait  production-sharing  contract  (PSC) area and has a  50-percent
working  interest.  The Merah Besar field is located on the Makassar  Strait PSC
and the East Kalimantan PSC areas. Unocal Indonesia Company, also a wholly owned
subsidiary,  holds a 100-percent  working  interest in the East  Kalimantan PSC.
Development  activity is planned in two phases,  with phase one production  from
the West Seno field  expected in 2002.  With this  approval,  the two fields now
qualify  to supply gas for the latest  package of LNG sales and  natural  gas is
also  available  for  LPG  extraction.   In  November,   the  company  announced
discoveries  of oil and gas in the  Bangka and Aton  prospects  in the Rapak PSC
area which further confirm the hydrocarbon resource potential of the Kutei Basin
deepwater properties. The company has a 60-percent working interest in the Rapak
PSC.

The company completed,  in October,  an exchange of its interest in a subsidiary
holding a 28.57 percent stake in three  producing  fields in Yemen for the stock
of two Occidental Petroleum Corporation  subsidiaries holding 50-percent working
interests in three  blocks in northeast  Bangladesh.  These  Bangladesh  assets,
received by the company in July 1999,  include two production  sharing contracts
in which the company already held 50-percent working interests. In addition, the
assets  include  the  Bibiyana  gas  field,  discovered  in  1998.  The  company
transferred  to Occidental  Petroleum  Corporation  its working  interest in the
production-sharing  contract  of the East Shabwa  contract  area in Yemen in the
fourth quarter of 1999.

As of  September  30,  1999,  the  company  had a gross  receivable  balance  of
approximately  $158 million  related to its geothermal  operations in Indonesia.
Approximately $61 million related to Salak electric generating Units 1, 2, and 3
and is due by  November  27,  1999,  of which $53  million  represents  past due
amounts and accrued  interest  resulting  from  partial  payments for March 1998
through  July 1999.  Although  invoices  have  generally  not been paid in full,
amounts that have been paid have been  received in a timely manner per the steam
sales contract.  The remaining $97 million relates to Salak electric  generating
Units 4, 5 and 6 which the company has received  partial payments for the period
of March  1998  through  July  1999.  Provisions  covering  a  portion  of these
receivables  were recorded in 1998 and 1999. The company is vigorously  pursuing
collection of the outstanding receivables.

The company, at times, employs a commodity price option program that establishes
a price floor,  while retaining most of the benefits of higher price  movements.
This program is designed to protect cash flow and the capital  spending  program
against the effects of severe commodity price deterioration.  For the first nine
months of 1999,  the program  resulted in lower  realizations  for crude oil and
natural gas totaling about $16 million after-tax.  For the full-year 1999, based
on recent NYMEX oil and gas futures prices, the company anticipates this program
will lower  earnings by  approximately  $29 million  after-tax.  This  program's
results exclude hedging activities by Northrock.  In 1999,  Northrock's  hedging
activities are expected to lower the company's share of Northrock's  earnings by
approximately $3 million after-tax.  Most of the company's existing  non-trading
positions close out in the fourth quarter, with the exception of certain options
and fixed-price  contracts for Northrock which extend to the year 2004. For more
information, refer to note 9 to the consolidated financial statements.

                                       23

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

The company  adopted two separate  restructuring  plans in the second quarter of
1999 and the fourth  quarter  of  1998that  will  result in the  termination  of
approximately 250 and 475 employees,  respectively.  For more information, refer
to  note  15 to the  consolidated  financial  statements.  The  company  expects
implementation of the plans to reduce future annualized salaries and benefits by
an estimated $32 million after-tax.  Cash expenditures  related to the plans are
estimated  to be $19  million  and $8  million  for the  years  1999  and  2000,
respectively.

YEAR 2000

The company is essentially  complete in addressing the Year 2000 (Y2K) issue for
critical systems and applications.

Many  existing  computer  programs  were  designed and developed to use only two
digits to identify a year in the date field.  If not  addressed,  these programs
could result in system  failures with possible  material  adverse effects on the
company's operations at the beginning of the year 2000.

The company's Y2K efforts are divided into three general categories: information
technology (IT) systems and  applications,  non-IT  embedded  systems in process
controls,  and its relationships  with critical business  partners.  The company
appointed  a program  manager  and  assembled  various  teams of  professionals,
principally at the business unit level, which developed plans to implement these
efforts.  The plans established a methodology and schedule to identify,  assess,
correct and test the company's IT systems, applications, non-IT embedded systems
(such as  microcontrollers  and other devices used for process control),  system
interfaces with vendors, suppliers, customers and other outside parties, as well
as to assess the Y2K  readiness of such third  parties.  The company  contracted
with systems  consulting  firms to assist with the  assessment,  correction  and
testing  of the  company's  internal  systems  and their  interfaces  with third
parties.  To ensure  independent  review and validation of the implementation of
the company's Y2K plans, internal auditors,  assisted by contract auditors,  are
auditing the Y2K projects of key business units within the company and reporting
their findings to senior management.

A  company-wide  initial  awareness  campaign was  completed  in June 1998.  The
identification,  assessment, and planning phases of the internal systems portion
of the project have been completed.  The company has written and tested business
contingency and recovery plans for 99 percent of its "mission critical" systems,
applications and processes.  These systems,  applications and processes,  if not
operable, could materially adversely impact cash flow, operations, safety or the
environment.

The  company's  Y2K project  work  includes the writing and updating of existing
contingency  plans to address  material  Y2K issues.  The  company has  existing
processes  for  managing  emergency  situations  and  intends to have its Crisis
Management  Center  operating at the time of the century rollover to assist with
implementing any contingency plans if required.

The company has  completed  the  inventory  and  assessment of its IT and non-IT
embedded systems and detailed planning to correct or work around the anticipated
problems in these systems. The  remediation/renovation and validation/testing of
its IT and non-IT embedded systems were  approximately 98 percent complete as of
September 30, 1999.

                                       24


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

The  following  schedule  sets  forth  the  company's  estimated  timetable  for
achieving Y2K readiness of its IT and embedded systems:


Project Phases                                      Target Completion Dates
- ------------------------------------------          ------------------------------------------
                                                 
Worldwide inventory of systems                      Completed
Worldwide assessment                                Completed
Initial plan for corrections/work arounds           Completed
Remediation/renovation                              98% Completed; Finish fourth quarter 1999
Contingency planning                                99% Completed; Finish fourth quarter 1999
Validation/testing                                  98% Completed; Finish fourth quarter 1999
Implementation                                      98% Completed; Finish fourth quarter 1999
Continuous system review                            Ongoing-through first quarter 2000

The company has identified  approximately 400 "critical business partners".  The
overall  assessment  of the  Year  2000  readiness  of these  partners  has been
positive. Work in this area will continue and contingency plans will incorporate
the possibility of performance failures by multiple critical business partners.

The  company  estimates  the  total  expenditures  on its  Y2K  project  will be
approximately $25 million.  These expenditures are recorded at the business unit
and corporate levels and are funded from cash provided by operating  activities.
Expenditures as of September 30, 1999, were  approximately $21 million.  Most of
the remaining expenditures are expected to be incurred in the remainder of 1999.

The  company is not aware of any IT projects  that have been  delayed due to the
Y2K project.

The Y2K  problem  is real and  there is a risk of Y2K  related  failures.  These
failures could result in an interruption  in, or a failure of, certain  business
activities or functions. Such failures could materially and adversely affect the
company's results of operations,  liquidity or financial  condition.  Due to the
uncertainty  surrounding  the Y2K problem,  including the uncertainty of the Y2K
readiness of the company's customers,  suppliers,  and partners,  the company is
unable at this time to  determine  the true impact of the Y2K problem to Unocal.
The  principal  areas of risk are thought to be oil and gas  production  control
systems,   other  embedded  operations  control  systems  and  third  party  Y2K
readiness. The company's Y2K project is expected to reduce this uncertainty. The
company  believes  that with the  completion  of the  project  as  planned,  the
possibility of significant interruptions of normal operations should be reduced.
There can be no  assurance,  however,  that such  changes will prove 100 percent
effective  in resolving  all Y2K related  issues.  Furthermore,  there can be no
assurance  that  critical  business  partners  will  not  experience   failures,
irrespective of the Y2K readiness  representations  they may have made. A likely
worst case  scenario  is that  despite  the  company's  efforts,  there could be
failures of control  systems,  which might cause some processes to be shut down.
Such failures could have a material adverse impact on the company's  operations.
The company is particularly  concerned about the status of key critical business
partners' Y2K readiness in Indonesia,  Bangladesh, Thailand and The Philippines.
Their failure due to a Year 2000 problem could  prevent  Unocal from  delivering
product and cause a material adverse impact to the company's cash flows.

Future Accounting Changes

In June 1999,  the  Financial  Accounting  Standards  Board issued  Statement of
Financial  Accounting  Standards  ("SFAS") No. 137,  which delayed the effective
date  of SFAS  No.  133  "Accounting  for  Derivative  Instruments  and  Hedging
Activities".  SFAS No. 133 required that companies  recognize all derivatives as
either assets or liabilities in the statement of financial  position and measure
those instruments at fair value. The accounting for changes in the fair value of
a derivative  instrument depends upon the intended use of the instrument and its
resulting  designation.  Unless designated as a hedge, changes in the fair value
of a derivative  instrument  are to be  accounted  for as gains or losses in the
period of change. In the case of certain hedging activities, changes in the fair
values of derivative  instruments that are effective as hedges, are deferred and
reported  as part of other  comprehensive  income.

                                       25

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

Changes in the fair value of  derivative  instruments  that are not effective as
hedges are reported in earnings in the period of the change.

SFAS No.  133 had  required  companies  to adopt its  provisions  for all fiscal
quarters of fiscal  years  beginning  after June 15,  2000.  SFAS 137 delays the
effective date to all fiscal  quarters of fiscal years  beginning after June 15,
2001. The company is planning to adopt SFAS 133 in the first quarter of the year
2001 and is  currently  evaluating  the  impact the  statement  will have on its
reporting for derivative instruments and hedging activities.

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk generally represents the risk that losses may occur in the values of
financial  instruments  as a result of  movements  in  interest  rates,  foreign
currency  exchange  rates and  commodity  prices.  As part of its overall  risk-
management  strategies,  the company uses  derivative  financial  instruments to
manage and reduce risks associated with these factors.  The company also pursues
outright  pricing  positions  in  certain   hydrocarbon   derivative   financial
instruments, such as futures and options contracts.

Interest  Rate  Risk - From time to time the  company  temporarily  invests  its
excess  cash in  interest-bearing  securities  issued by  high-quality  issuers.
Company  policies  limit  the  amount of  investment  in  securities  of any one
financial institution. Due to the short time the investments are outstanding and
their general liquidity, these instruments are classified as cash equivalents in
the  consolidated  balance sheet and do not  represent a material  interest rate
risk to the company.  The company's primary market-risk  exposure for changes in
interest rates relates to the company's long-term debt obligations.  The company
manages its exposure to changing interest rates principally through the use of a
combination  of  fixed  and  floating-rate  debt.  Interest-rate  risk-sensitive
derivative  financial  instruments,  such as swaps,  options,  floors, caps, and
collars may also be used depending upon market conditions.

The company  evaluated the potential  effect that near-term  changes in interest
rates  would  have had on the fair  value  of its  interest-rate  risk-sensitive
financial  instruments at September 30, 1999. Assuming a ten-percent decrease in
the  company's  weighted  average  borrowing  costs at September  30, 1999,  the
potential  increase  in the fair value of the  company's  debt  obligations  and
associated derivative instruments,  including the company's net interests in the
debt  obligations  and associated  derivative  instruments of its  subsidiaries,
would have been approximately $118 million.

Foreign Exchange Rate Risk - The company  conducts  business in various parts of
the world and in various  foreign  currencies.  To limit the  company's  foreign
currency   exchange-rate  risk  related  to  operating  income,   foreign  sales
agreements generally contain price provisions designed to insulate the company's
sales  revenues  against  adverse  foreign-currency   exchange  rates.  In  most
countries,  energy  products  are valued and sold in U.S.  dollars  and  foreign
currency operating cost exposures have not been significant. In other countries,
the company is paid for product  deliveries  in local  currencies  but at prices
indexed to the U.S.  dollar.  These funds,  less amounts  retained for operating
costs,  are  converted to U.S.  dollars as soon as  practicable.  The  company's
Canadian subsidiaries are paid in Canadian dollars for crude oil and natural gas
sales.  Excess  Canadian  funds  generally  have been  invested in other  Unocal
foreign operations.

From time to time the company  may  purchase  foreign-currency  options or enter
into  foreign-currency  forward  contracts to limit the exposure  related to its
foreign-currency  obligations.  At September 30, 1999, the company evaluated the
effect that near term  changes in  foreign-exchange  rates would have had on the
fair value of the company's foreign-currency position related to its outstanding
foreign-currency forward contracts. Assuming an adverse change of ten percent in
foreign-currency exchange rates at September 30, 1999, the potential decrease in
fair value of the company's  foreign-currency  forward contracts,  including the
company's  net  interests  in  the  foreign-currency  forward  contracts  of its
subsidiaries, would have been approximately $13 million.

                                       26

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK (CONTINUED)

Commodity Price Risk - The company is a producer, purchaser, marketer and trader
of certain hydrocarbon commodities such as crude oil and condensate, natural gas
and  petroleum-based  products and is subject to the associated price risks. The
company  uses  hydrocarbon  derivative  financial  instruments,  such as futures
contracts,  swaps and options generally with maturities of 24 months or less, to
mitigate  its  exposure  to  commodity  price   fluctuations.   However,   these
instruments  may also limit some of the future gains  otherwise  available  from
favorable commodity price movements.

When these  instruments are used to hedge the company's future  production,  the
impacts are reflected in the average sales prices of the associated  commodities
at the time of sale. As a result,  the company's  reported crude oil and natural
gas  revenues  may be higher or lower than what would have been  reported if the
company had not employed the use of these  instruments.  From time to time,  the
company  also  enters  into  longer-term  derivative  instruments,  such as swap
contracts,  to refloat its long term fixed-price  commitments.  The company also
takes  pricing  positions  in  hydrocarbon   derivative  financial   instruments
(primarily futures and options contracts).

The company uses a variance-covariance  value-at-risk model to assess the market
risk of its  hydrocarbon-price-sensitive  derivative instruments.  Value-at-risk
represents the potential loss in fair value the company would  experience on its
hydrocarbon-price-sensitive    derivative    instruments,    using    calculated
volatilities  and  correlations  over a  specified  time  period  with  a  given
confidence  level.  The company's model is based upon historical data and uses a
three-day time interval with a 95-percent  confidence  level. The model includes
offsetting   physical  positions  for   hydrocarbon-price-sensitive   derivative
instruments  related to the company's pre-paid crude oil and natural gas forward
sales,  as well the company's net interests in its  subsidiaries'  crude oil and
natural gas derivative  instruments  including  offsetting physical positions of
forward  sales  contracts  to  which  those  contracts  relate.  Based  upon the
company's  model,  the  value  at risk  related  to  hydrocarbon-price-sensitive
derivative  financial  instruments  held for  purposes  other than  trading  was
approximately  $7 million at September  30 (refer to note 9 to the  consolidated
financial  statements  for  information  on  pre-tax  unrealized  losses  as  of
September 30, 1999 relating to hydrocarbon  price-sensitive derivative financial
instruments held for purposes other than trading).  The value at risk related to
hydrocarbon-price-sensitive  derivative  financial  instruments held for trading
purposes was approximately $1 million at September 30, 1999.

                                       27

                           PART II - OTHER INFORMATION

ITEM 1.   LEGAL PROCEEDINGS.

There is incorporated by reference the information with respect to certain legal
proceedings previously reported in Item 3 of Unocal's Annual Report on Form 10-K
for the year ended  December  31, 1998 (1998 Form 10-K) and in Item 1 of Part II
of Unocal's  Quarterly  Report on Form 10-Q for the quarter ended March 31, 1999
(First Quarter 1999 Form 10-Q) and Quarterly Report on Form 10-Q for the quarter
ended June 30, 1999  (Second  Quarter  Form  10-Q),  the  information  regarding
environmental  remediation  reserves  in note 10 to the  consolidated  financial
statements in Item 1 of Part I of this report , the  discussion of such reserves
in the Environmental Matters section of Management's  Discussion and Analysis in
Item 2 of Part I, and the information  regarding  certain legal  proceedings and
other  contingent   liabilities  in  note  11  to  the  consolidated   financial
statements. Information with respect to certain recent developments is set forth
below:

1.       In  connection  with  the  Notices  of  Preliminary   Determination  of
         Underpaid  Royalties received from the MMS, described in Paragraph 6 of
         Item 3 of the 1998 Form 10-K,  in  Paragraph  4 of Item 1 of Part II of
         the First  Quarter  1999 Form 10-Q and in Paragraph 3 of Item 1 of Part
         II of the Second Quarter Form 10-Q, the settlement amount of $7 million
         was paid by the company in August 1999.

2.       In the lawsuits captioned Aguilar, et al. v. Atlantic Richfield, et al.
         and  Gilley,  et al.  v.  Atlantic  Richfield,  et  al.,  described  in
         Paragraph 7 of Item 3 of the 1998 Form 10-K and in  Paragraph 4 of Item
         1 of Part II of the Second  Quarter Form 10-Q,  the Aguilar  settlement
         amount of $3,000,000  was approved by the court and paid by the company
         in September 1999 and the Gilley settlement amount of $525,000 received
         the preliminary approval of the court in October 1999.

Certain Environmental Matters Involving Civil Penalties

3.       In connection with the company's  negotiations with the South Coast Air
         Quality Management  District  concerning issues involving the company's
         former Los Angeles Refinery, described in Paragraph 14 of Item 3 of the
         1998 Form 10-K and in  Paragraph  7 of Item 1 of Part II of the  Second
         Quarter Form 10-Q,  the company  settled the past emissions fees issues
         for an aggregate of $290,000, which was paid in September 1999.

4.       On November 2, 1999,  the  District  Attorney  for San Joaquin  County,
         California  filed a lawsuit  against the company and Tosco  Corporation
         (The  People  of the  State of  California  v.  Union  Oil  Company  of
         California,  et al.,  Superior Court of California,  San Joaquin County
         No.  CV009241)  alleging  that  company has failed to take  appropriate
         corrective  action  with  respect to  releases  from  underground  fuel
         storage  tanks at six former  company  service  stations in San Joaquin
         County.  The complaint  seeks civil  penalties as well as an injunction
         requiring  further  remedial  action  and  restraining   violations  of
         applicable  requirements.  As of November 12, 1999, the company had not
         been  served with the  complaint.  The  company  intends to  vigorously
         contest the allegations of the complaint.

                                       28

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

          (a) Exhibits:  The Exhibit  Index on page 31 of this report lists the
          exhibits that are filed as part of this report.

          (b) Reports on Form 8-K:

              Filed during the third quarter of 1999:

                    1.   Current  Report on Form 8-K  dated  July 6,  1999,  and
                         filed July 9, 1999, for the purpose of reporting, under
                         Item 5, the results of wells  drilled by the  company's
                         Spirit Energy 76 business unit in the Gulf of Mexico.

                    2.   Current  Report on Form 8-K dated  July 27,  1999,  and
                         filed July 29,  1999,  for the  purpose  of  reporting,
                         under  Item  5,  the  company's   second  quarter  1999
                         earnings and related information.

                    3.   Current  Report on Form 8-K dated  September  29, 1999,
                         and  filed  September  30,  1999,  for the  purpose  of
                         reporting,  under Item 5, the results of wells  drilled
                         by the company's  Spirit Energy 76 business unit in the
                         Gulf of Mexico.


               Filed during the fourth quarter of 1999 to the date hereof:

                    1.   Current  Report on Form 8-K dated October 26, 1999, and
                         filed  October 29, 1999,  for the purpose of reporting,
                         under Item 5, the company's third quarter 1999 earnings
                         and related information.

                                       29

                                    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.



                                             UNOCAL CORPORATION
                                             (Registrant)


Dated:  November 12, 1999                    By:   /s/ JOE D. CECIL
                                                ------------------------------
                                                  Joe D. Cecil
                                                  Vice President and Comptroller
                                                  (Duly Authorized Officer
                                                   Principal Accounting Officer)































                                       30



                                  EXHIBIT INDEX


3.   Restated Certificate of Incorporation of Unocal Corporation,  dated October
     1, 1999.

10.  Termination and Employment Agreement and Release, by and between John Imle,
     Union Oil Company of  California  and Unocal  Corporation,  effective as of
     September 11, 1999.

12.1 Statement  regarding  computation  of ratio of earnings to fixed charges of
     Unocal Corporation for the nine months ended September 30, 1999 and 1998.

12.2 Statement  regarding  computation  of ratio of earnings to fixed charges of
     Union Oil Company of  California  for the nine months ended  September  30,
     1999 and 1998.

27.  Financial  data schedule for the period ended  September 30, 1999 (included
     only in the copy of this report filed electronically with the Commission).

                                       31