KERR MCGEE CORP
10-K, 2000-03-30
CRUDE PETROLEUM & NATURAL GAS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
                                    FORM 10-K

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

                   For the Fiscal year ended December 31, 1999

                          Commission file number 1-3939

                             KERR-MCGEE CORPORATION
             (Exact name of registrant as specified in its charter)

              DELAWARE                                   73-0311467
  (State or other jurisdiction                         (I.R.S. Employer
of incorporation or organization)                     Identification No.)

                KERR-MCGEE CENTER, OKLAHOMA CITY, OKLAHOMA 73125
                    (Address of principal executive offices)

        Registrant's telephone number, including area code: (405)270-1313

           Securities registered pursuant to Section 12(b) of the Act:

                                                     NAME OF EACH EXCHANGE ON
         TITLE OF EACH CLASS                         WHICH REGISTERED
         -------------------------------             ------------------------

         Common Stock $1 Par Value                   New York Stock Exchange
         Preferred Share Purchase Right
         8-1/2% Sinking Fund Debentures,
             Due June 1, 2006                        New York Stock Exchange
         7-1/2% Convertible Subordinated
             Debentures Due May 15, 2014             New York Stock Exchange
         5-1/2% Exchangeable Notes
             Due August 2, 2004                      New York Stock Exchange

        Securities registered pursuant to Section 12(g) of the Act: None


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 and (2) has been subject to such filing requirements for
the past 90 days.     Yes    [X]                  No    [ ]

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [_]

The  aggregate  market value of the voting stock held by  non-affiliates  of the
registrant was approximately $4.2 billion as of February 29, 2000.

The number of shares of common stock  outstanding  as of February 29, 2000,  was
94,135,511.

                       DOCUMENTS INCORPORATED BY REFERENCE

Specified  sections  of  the  Kerr-McGee   Corporation  1999  Annual  Report  to
Stockholders,  as described herein, are incorporated by reference in Parts I and
II of this Form 10-K. The definitive Proxy Statement for the 2000 Annual Meeting
of Stockholders, which will be filed with the Securities and Exchange Commission
within 120 days after  December 31, 1999, is  incorporated  by reference in Part
III of this Form 10-K.


                             KERR-McGEE CORPORATION
                                     PART I

Items 1. and 2.  Business and Properties

                         GENERAL DEVELOPMENT OF BUSINESS

         Kerr-McGee  Corporation,  an  energy  and  chemical  company,  had  its
beginning in 1929 with the  formation of Anderson & Kerr Drilling  Company.  The
company was  incorporated  in Delaware in 1932. With oil and gas exploration and
production as its base, the company has expanded into titanium  dioxide  pigment
manufacturing and marketing and minerals, mining and marketing.  Kerr-McGee owns
a large  inventory of natural  resources  that includes oil and gas reserves and
chemical and mineral deposits.

         For a discussion of recent business developments,  reference is made to
the "Kerr-McGee/Oryx  Merger" section of Management's Discussion and Analysis in
the 1999 Annual Report to  Stockholders,  which  discussion is  incorporated  by
reference in Item 7, and the Exploration and Production  discussion  included in
this Form 10-K. Additionally,  business developments subsequent to year-end 1999
are discussed in Note 25 to the  Consolidated  Financial  Statements in the 1999
Annual  Report,  which  note is  incorporated  by  reference  in Item 8, and the
Exploration and Production and Chemicals discussions in this Form 10-K.

                                INDUSTRY SEGMENTS

         For  information as to business  segments of the company,  reference is
made to Note 24 to the  Consolidated  Financial  Statements  in the 1999  Annual
Report to Stockholders, which note is incorporated by reference in Item 8.

                           EXPLORATION AND PRODUCTION

         Kerr-McGee  Corporation manages oil and gas operations  worldwide.  The
company acquires leases and concessions and explores for, develops, produces and
markets crude oil and natural gas through its subsidiaries, Kerr-McGee Oil & Gas
Corporation,  Kerr-McGee  Oil and Gas Onshore  LLC,  Kerr-McGee  Oil (U.K.) PLC,
Kerr-McGee  North Sea  (U.K.)  Limited,  Kerr-McGee  Resources  (U.K.)  Limited,
Kerr-McGee China Petroleum Ltd. and various other subsidiaries.

         The  areas of  Kerr-McGee's  offshore  oil and gas  exploration  and/or
production  activities  are the Gulf of Mexico,  North Sea,  Australia,  Brazil,
China,  Thailand and Gabon. Onshore exploration and/or production operations are
in the United  States,  Indonesia,  the  United  Kingdom,  Kazakhstan,  Algeria,
Ecuador, and Yemen.

- -------------
         Except as indicated under Items 1 through 3, 5 through 8 and 10 through
14, no other information appearing in either the company's 1999 Annual Report to
Stockholders  or its 2000 Proxy  Statement is deemed to be filed as part of this
annual report on Form 10-K.

         The  merger of  Kerr-McGee  Corporation  and Oryx  Energy  Company  was
completed on February 26, 1999. The merger created one of the largest U.S.-based
independent  oil  and  gas  exploration  and  production  companies  based  upon
reserves. The combination resulted in significant additions to Kerr-McGee's core
exploration and production operations in the United States and the North Sea and
further  contributed to the company's  international  exploration and production
efforts.  All prior period  amounts in this report have been restated to reflect
the combined company as though it had always been in existence.

         Kerr-McGee's  average  daily oil  production  during  1999 was  196,900
barrels, an increase of 14% from 1998. Kerr-McGee's average oil price was $17.15
per barrel in 1999, compared with $12.52 per barrel for 1998.

         During 1999, natural gas sales averaged 580 million cubic feet per day,
down 1% from  1998  sales.  The 1999  average  natural  gas  price was $2.35 per
thousand cubic feet, compared with $2.12 per thousand cubic feet for 1998.

         Kerr-McGee continued to add to its worldwide acreage inventory in 1999.
Gross acreage at year-end 1999 was more than 43 million acres, an increase of 7%
compared with year-end 1998.

Costs  Incurred,  Results of  Operations,  Sales  Prices,  Production  Costs and
- --------------------------------------------------------------------------------
Capitalized Costs
- -----------------

         Reference is made to Notes 26, 27 and 28 to the Consolidated  Financial
Statements  in  the  1999  Annual  Report  to  Stockholders,   which  notes  are
incorporated  by reference  in Item 8. These notes  contain  information  on the
costs  incurred  in crude oil and natural  gas  activities  for each of the past
three years;  results of operations  from crude oil and natural gas  activities,
average sales prices per unit of crude oil and natural gas, and production costs
per  barrel  of oil  equivalent  (BOE)  for each of the past  three  years;  and
capitalized  costs of crude oil and natural gas  activities at December 31, 1999
and 1998.

Reserves
- --------

         Kerr-McGee's  estimated  proved  crude  oil,  condensate,  natural  gas
liquids and natural gas reserves at December  31,  1999,  and the changes in net
quantities  of such reserves for the three years then ended are shown in Note 29
to  the  Consolidated   Financial  Statements  of  the  1999  Annual  Report  to
Stockholders, which note is incorporated by reference in Item 8.

         From time to time reports are filed with the United  States  Department
of Energy relating to the company's reserves. The reserves reported in the Notes
to Financial  Statements are consistent with other filings  pertaining to proved
net reserves.  Minor differences in gas volumes occur due to different  pressure
bases being required in the reports.  However,  the difference in estimates does
not exceed 5% of the total estimated reserves.

Undeveloped Acreage
- -------------------

         As of December 31, 1999, the company had interests in  undeveloped  oil
and gas leases in the Gulf of Mexico,  onshore United States, the United Kingdom
and  Danish  sectors  of the  North  Sea  and  onshore  and  offshore  in  other
international areas as follows:

                                           Gross              Net
Location                                  Acreage           Acreage
- --------                                  -------           -------

United States -
     Offshore                            1,733,934         1,066,349
     Onshore                               886,304           494,069
                                        ----------        ----------
                                         2,620,238         1,560,418
                                        ----------        ----------

North Sea                                1,673,217           860,797
                                        ----------        ----------

Other international -
     Yemen                               9,879,761         4,724,346
     Australia                           8,175,232         3,642,818
     Thailand                            4,861,797         4,132,526
     Brazil                              3,877,510         1,388,137
     Gabon                               3,115,997           436,240
     Kazakhstan                          2,248,000         2,248,000
     Algeria                             1,878,587         1,878,587
     China                                 733,901           345,824
     Ecuador                               484,326           242,163
                                        ----------        ----------
                                        35,255,111        19,038,641
                                        ----------        ----------

         Total                          39,548,566        21,459,856
                                        ==========        ==========

Developed Acreage
- -----------------

         At December 31, 1999,  the company had  interests in developed  oil and
gas acreage in the Gulf of Mexico,  onshore  United  States,  the United Kingdom
sector of the North Sea, and onshore and offshore in other  international  areas
as follows:
                                          Gross              Net
Location                                 Acreage           Acreage
- --------                               ---------         ---------

United States -
     Offshore                            672,118           319,138
     Onshore                             858,371           477,381
                                       ---------         ---------
                                       1,530,489           796,519
                                       ---------         ---------

North Sea                                451,674           105,209
                                       ---------         ---------

Other international -
     Indonesia                         1,724,629           517,389
     Ecuador                             494,210           247,105
     China                                78,332            19,191
     Kazakhstan                            1,000             1,000
                                       ---------         ---------
                                       2,298,171           784,685
                                       ---------         ---------

        Total                          4,280,334         1,686,413
                                       =========         =========

Net Exploratory and Development Wells
- -------------------------------------

         Domestic and  international  exploratory and development  wells drilled
during the three years ended December 31, 1999, are as follows.

                                           1999          1998           1997
                                           ----         -----          -----

Exploratory Wells - Net(1)
     United States
         Productive                        1.70          3.40           6.65
         Dry holes                         2.15          6.73           5.65
                                           ----         -----          -----
                                           3.85         10.13          12.30
                                           ----         -----          -----
    North Sea
         Dry holes                          .80          2.05            .40
                                           ----         -----          -----

     Other international
         Productive                           -          1.00           1.00
         Dry holes                          .80          5.64           1.37
                                           ----         -----          -----
                                            .80          6.64           2.37
                                           ----         -----          -----

              Total                        5.45         18.82          15.07
                                           ====         =====          =====


         The above 1999 net well  count does not  include  5.77  successful  net
wells (3.15 United States, 1.0 North Sea and 1.62 Other international) that were
drilled in 1999 but are currently suspended.


                                           1999          1998           1997
                                          -----         -----         ------

Development Wells - Net(1)
     United States
         Productive                       34.87         46.99          81.11
         Dry holes                         5.38          8.00           6.00
                                          -----         -----         ------
                                          40.25         54.99          87.11
                                          -----         -----         ------
     North Sea
         Productive                        9.31         10.77           5.55
         Dry holes                          .51             -              -
                                          -----         -----         ------
                                           9.82         10.77           5.55
                                          -----         -----         ------

     Other international
         Productive                        2.05          4.54           9.12
         Dry holes                            -          1.00           1.00
                                          -----         -----         ------
                                           2.05          5.54          10.12
                                          -----         -----         ------

              Total                       52.12         71.30         102.78
                                          =====         =====         ======



(1)Net Wells - The total of the company's fractional working interests in "gross
   wells" expressed as the equivalent number of full-interest wells.


Gross and Net Wells
- -------------------

         The number of productive  oil and gas wells in which the company had an
interest at December  31, 1999,  is shown in the  following  table.  These wells
include  2,069  gross or 938.55  net wells  associated  with  improved  recovery
projects and 274 gross or 168.38 net wells that have  multiple  completions  but
are included as single wells.

                                               Gross                    Net
Location                                       Wells                   Wells
- --------                                       -----                 --------

Crude Oil
     United States                             2,514                 1,273.21
     North Sea                                   306                    79.14
     Ecuador                                      54                    19.17
     China                                        25                     6.13
     Kazakhstan                                   16                     8.00
     Indonesia                                    25                     7.50
                                               -----                 --------
                                               2,940                 1,393.15
                                               -----                 --------

Natural Gas
     United States                               856                   530.81
     North Sea                                    45                     3.48
                                               -----                 --------
                                                 901                   534.29
                                               -----                 --------

         Total                                 3,841                 1,927.44
                                               =====                 ========


Wells in Process of Drilling
- ----------------------------

         At  year-end  1999,  the company had wells  classified  as  temporarily
suspended or in the process of drilling as follows:

                                              Gross                    Net
                                              Wells                   Wells
                                              -----                   -----
     United States                              32                    13.54
     North Sea                                  24                    11.67
     Indonesia                                  17                     5.10
     China                                       5                     4.09
     Ecuador                                     4                     2.00
     Australia                                   5                     1.25
     Kazakhstan                                  2                     1.00
                                                --                    -----

         Total                                  89                    38.65
                                                ==                    =====


Crude Oil and Natural Gas Sales
- -------------------------------

         The following table summarizes the sales of the company's crude oil and
natural gas production for the past three years:

(Millions)                                      1999         1998           1997
                                            --------       ------       --------

Crude oil and condensate - barrels
     United States                              29.0         24.2           25.8
     North Sea                                  38.4         31.8           30.5
     Other international                         5.4          6.8            6.6
                                            --------       ------       --------
                                                72.8         62.8           62.9
                                            ========       ======       ========

Crude oil and condensate
     United States                          $  483.2       $307.6       $  472.8
     North Sea                                 687.1        411.0          578.3
     Other international                        77.7         67.8          101.1
                                            --------       ------       --------
                                            $1,248.0       $786.4       $1,152.2
                                            ========       ======       ========

Natural gas - MCF
     United States                             191.0        197.3          235.2
     North Sea                                  20.7         15.7           14.9
                                            --------       ------       --------
                                               211.7        213.0          250.1
                                            ========       ======       ========

Natural gas
     United States                          $  454.5       $413.2       $  571.9
     North Sea                                  43.8         38.7           36.4
                                            --------       ------       --------
                                            $  498.3       $451.9       $  608.3
                                            ========       ======       ========


Sales of Production
- -------------------

         All of the  company's  crude  oil and  natural  gas is  sold at  market
prices.  Kerr-McGee has formed strategic alliances with several energy marketing
companies to sell  substantially  all of its domestic  crude oil and natural gas
production.  International crude oil and natural gas is sold both under contract
and through spot market sales in the geographic area of production.

Improved Recovery
- -----------------

         The  company  continues  to  initiate  and/or  participate  in improved
recovery  projects where  geological,  engineering  and economic  conditions are
favorable.  As of December 31, 1999, the company was  participating in 39 active
improved recovery projects located  principally in Texas,  Oklahoma,  New Mexico
and the United Kingdom  sector of the North Sea. Most of the company's  improved
recovery operations incorporate water injection.

Exploration and Development Activities
- --------------------------------------

Gulf of Mexico

         Since  1947,  the Gulf of Mexico has been a focal area for  Kerr-McGee,
and  represented  40% of  Kerr-McGee's  oil  and gas  production  in  1999.  The
company's  scale of  operations  significantly  increased  during  1999 with the
merger of the Oryx assets.  Kerr-McGee  is now  positioned as one of the largest
independent  producers in the Gulf of Mexico and has significantly  expanded its
deepwater exploration, exploitation and production activities.

         This deepwater strategy has begun to yield results,  with 10 successful
discovery and appraisal  wells drilled in water depths  greater than 600 feet in
1999.  Discoveries  for 1999  include the  Kerr-McGee  operated  Nansen (50% K-M
interest),  Boomvang (30%) and West Boomvang (30%)  prospects,  where plans call
for further  appraisal  drilling into 2000 followed by development  drilling and
facility installation.  First production from these fields is anticipated in the
first  half of 2002.  Discoveries  were also made in Garden  Banks  blocks  200,
108/152 and 184. The Garden Banks 108/152 (45%) wells were completed in 1999 and
have begun production. Garden Banks 184 (50%) block is expected to be brought on
production  in 2000 and Garden Banks 200 (25%) block should begin  production by
the first quarter of 2001.

         Also in 1999, Kerr-McGee added 241,473 net acres to its deepwater lease
inventory  through federal lease sales.  All of these leases are in water depths
greater than 600 feet.  Additional  acreage was also added through  acquisitions
and trades. The aggressive exploration drilling program initiated in mid-1999 is
expected to continue, with anticipated drilling of 8 to 10 deepwater exploratory
wells in 2000.

         During 1999, three new fields began production in the Gulf of Mexico. A
summary of these and other major producing fields is as follows:

         Main Pass 162 (35%):  First gas production from the Main Pass 162 Field
began in September 1999. This two-well platform  development  located in 91 feet
of water was producing  approximately 14 million gross cubic feet of gas per day
at year-end.

         Garden Banks 108 (45%): First production from this  Kerr-McGee-operated
field began in December  1999. The field was developed with a single subsea well
tied back to the Kerr-McGee operated Garden Banks 65 Field. The well tested at a
gross  production  rate of 6.7  million  cubic  feet of gas per day,  which  was
constrained by facility capacity.

         Garden  Banks 152 (45%):  This  Kerr-McGee-operated  block came on line
during  December  1999 via a single subsea well tied back to the Garden Banks 65
Field.  Initial production from this well was 20 million gross cubic feet of gas
per day.

         Baldpate  Field,  Garden Banks 260 Area (50%):  Average 1999 production
from the Baldpate Field, inclusive of the Penn State Field subsea satellite well
(50%),  was 43,000  barrels of oil per day and 167 million cubic feet of gas per
day. At year-end  there were seven  platform wells and one subsea well producing
approximately  56,000  barrels of oil per day and 210 million  cubic feet of gas
per day.  Plans  include  drilling  one  additional  platform  well,  which  was
commenced  in early  2000.  The field is  located  in 1,690 feet of water and is
producing from an articulated compliant tower.

         Neptune  Field,  Viosca Knoll 826 Area (50%):  Average 1999  production
from the Neptune  Field was 28,000  barrels of oil per day and 26 million  cubic
feet of gas per day from the world's first production spar.  Production was from
10 platform  wells and two subsea wells.  One of the subsea wells was drilled in
1999 and was producing 4,000 barrels of oil per day at year-end.

         Pompano  Field,  Viosca  Knoll  989  Area  (25%):  Average  1999  field
production  was 45,700  barrels of oil per day and 56 million  cubic feet of gas
per day. At year-end there were 29 platform and subsea wells contributing to the
production.  Plans for a  multiwell  drilling  program  in early  2000 have been
approved.

         Other significant development activities in the Gulf of Mexico include:

         1)       Garden Banks 184 Field (50%): The project is a one-well subsea
                  tieback with expected first production in the third quarter of
                  2000.

         2)       Conger Field,  Garden Banks 215 (25%):  This three-well subsea
                  development is currently under  construction  with anticipated
                  startup in the fourth quarter 2000.

         3)       Northwestern  Field,  Garden  Banks 200  (25%):  This two well
                  subsea tieback project is proceeding  towards first production
                  expected by the first quarter of 2001.

U.S. Onshore

         The Oryx merger in 1999 resulted in  Kerr-McGee's  re-entry in the U.S.
onshore environment with production  operations in Texas,  Oklahoma,  New Mexico
and Louisiana. In 1999, company's the onshore average production rate was 18,600
barrels of oil per day and 170 million  cubic feet of gas per day. At the end of
1999, the onshore reserve base  represented 22% of Kerr-McGee's  total worldwide
reserves.

         Following is a summary of key U.S. onshore developments:

         Indian Basin  Field,  Eddy County,  New Mexico  (55%):  Four wells were
drilled and four workovers  completed  during 1999,  resulting in an incremental
net production increase of 8.5 million cubic feet of gas per day. Kerr-McGee net
production  from the total field was 22.3  million  cubic feet of gas per day in
1999. Additional development is planned for 2000.

         Double A Wells Field,  Polk County,  Texas (40%):  The 3-D seismic data
acquired in 1999 was instrumental in generating 1999 drilling opportunities,  as
well as providing an understanding  of the geological  framework for this field.
Two wells were completed during 1999 with a combined gross production rate of 16
million cubic feet of gas per day.  Kerr-McGee's  net production  from the field
was 1,100 barrels of oil per day and 23 million cubic feet of gas per day. Field
development will continue during 2000.

         South Texas Fields (80%): Eleven wells were completed during 1999, with
initial rates  totaling 20 million cubic feet of gas per day net to  Kerr-McGee.
Acquisition  of 3-D seismic  data  covering  14,000  acres of leasehold in Starr
County began in January 2000.  Kerr-McGee  net  production  from the area is 600
barrels of oil per day and 29 million cubic feet of gas per day.

         Mocane-Laverne Field, Harper and Beaver Counties,  Oklahoma (60%): This
continues  to  be an  area  of  active  development  for  Kerr-McGee.  The  1999
development  program consisted of 17 wells to develop  approximately 8.5 billion
cubic feet of net gas reserves. The field currently has a  reserve-to-production
ratio of 12 years. Kerr-McGee's net production from the area is 15 million cubic
feet of gas per day.

North Sea

         Kerr-McGee  has been  active in the North Sea area  since  1976.  As of
December 31, 1999,  following the merger with Oryx,  Kerr-McGee had interests in
27 United Kingdom  producing  fields.  The company's  average daily sales in the
North Sea increased by 22% from 1998 levels to 114,700 barrels of oil equivalent
per  day.  In  1999,  North  Sea  production  represented  more  than 52% of the
company's worldwide liquids production and 10% of its gas sales.

         On January 18,  2000,  the  company  completed  the  purchase of Repsol
S.A.'s upstream oil and gas operations in the United Kingdom sector of the North
Sea. The former Repsol  properties are expected to add daily production of about
30,000 barrels of oil equivalent  and proved  reserves of 96 million  barrels of
oil equivalent.

         The company's North Sea exploration  program  consisted of six wells in
1999,  including a discovery drilled on the South Leadon prospect.  In addition,
seismic data was  acquired  over the Leadon area and over  Kerr-McGee's  Denmark
acreage.

         Following is a summary of the company's  four key  developments  in the
North  Sea,  which  contribute  approximately  60% of  the  region's  total  net
production. All four fields are operated by Kerr-McGee:

         Janice Field,  block 30/17a (50.9%):  First  production from Janice was
achieved in February 1999 with initial production rates exceeding  expectations.
In 1999,  the Janice field produced an average of 41,000  barrels of oil per day
and more than 5 million cubic feet of gas per day.

         Ninian Field, blocks 3/3 and 3/8 (44.9%):  Ninian Field consists of two
steel and one concrete  jacket  platforms  producing  from a  combination  of 82
producing  and  injection  wells.  Oil is exported  to the Sullom Voe  Terminal.
During 1999,  the field  produced an average of more than 42,000  barrels of oil
per day. In 1999,  Ninian also achieved record low operating  costs,  which were
50% lower than those incurred in the early 1990s.

         Murchison Field, block 211/19a (68.72%):  Murchison Field production is
via a steel jacket platform with oil exported to the Sullom Voe Terminal and gas
exported to the St.  Fergus  Terminal.  In 1999,  Murchison  produced  more than
21,300  barrels  of oil  equivalent  per day.  A  successful  six-well,  in-fill
drilling program was completed on Murchison in 1999.

         Gryphon Field, block 9/18b (61.5%):  Gryphon was the first field in the
North  Sea  to  use  a  permanently  moored  floating  production,  storage  and
offloading (FPSO) vessel. The company's interest in Gryphon increased from 46.5%
to 61.5% as a result  of a 1999  asset  swap.  In  1999,  the  field  production
averaged more than 20,400 barrels of oil per day.

Other International

         In 1999, Kerr-McGee continued its exploration and production efforts by
strategically   expanding  into  selected  international  areas.  A  summary  of
developments follows:

Indonesia:

         Jabung block (30%),  Sumatra:  This 1.7 million-acre  block consists of
five proven oil and gas fields.  Two fields are currently on  production,  while
the remaining fields are expected to commence production from late 2000 to 2002.
Production from the Jabung block averaged 10,300 gross barrels of oil per day in
1999.

         Appraisal work on the Northeast  Betara,  North Betara and Gemah Fields
(30%) was  completed  in 1999.  On January 7, 2000,  the  Indonesian  government
approved  development plans  incorporating oil, gas, condensate and LPG from all
five fields.  Several exploratory  prospects are planned for 2000 in addition to
an active development drilling schedule.

China:

         Liuhua 11-1 Field (24.5%),  South China Sea: In production  since 1996,
this field has been developed  entirely with horizontal wells.  Gross production
averaged 21,200 gross barrels of oil per day in 1999.

         Block 04/36 (81.8%),  Bohai Bay: Kerr-McGee acquired its pro rata share
of Murphy  Petroleum's  interest  in the block and drilled  the  successful  CFD
11-1-1  exploratory  well  during  1999.  More  than  280  feet  of oil  pay was
encountered over five zones. A second exploratory  appraisal well was started in
late December.  This well has encountered  approximately  210 feet of oil pay in
the same formations. Plans for 2000 include further appraisal drilling and a 3-D
seismic survey.

         Block 05/35 (50%),  Bohai Bay: An exploratory  well is planned for this
block during 2000 to test the same play concept on trend with Block 04/36.

Thailand:

         Block W7/38 (85%),  Andaman Sea: Kerr-McGee is the operator of this 4.9
million-acre block. Seismic evaluation work was completed in 1999.

Algeria:

         Kerr-McGee  has a 100%  interest in 1.9 million acres in Blocks 210 and
235.  Seismic data was acquired in 1999, and an exploratory  well is planned for
late 2000.

Kazakhstan:

         Arman JV (50%): The Arman Field lies along the eastern coastline of the
Caspian  Sea  approximately  300  kilometers  north of  Aktau.  In  1999,  gross
production averaged 4,400 barrels of oil per day.

         Caspian Pipeline  Consortium  (1.75%):  The Caspian Pipeline Consortium
Project  consists of the  construction of a pipeline from the Caspian Sea to the
Black Sea in order to increase the export capacity from western  Kazakhstan.  In
1999  pipeline   installation  and  marine  terminal   construction   commenced.
Completion is anticipated for mid to late 2001.

         Mertvyi  Kultuk  (100%):  The  company-operated  Mertvyi  Kultuk  block
contains  approximately  2.25 million acres and is located in the Ust-Yurt Basin
along  the  northeastern  shore  of the  Caspian  Sea in  Kazakhstan.  The  1999
activities included civil construction and further 3-D seismic interpretation in
preparation for 2000 exploration drilling.

Gabon:

         Anton  and  Astrid  Marin  Blocks  (14%):  Located  offshore  along the
southern  coast of Gabon,  the Anton  Marin and Astrid  Marin  blocks  total 3.1
million acres in water depths  ranging from 6,000 feet to more than 10,000 feet.
Activities in 1999 included  completion of a 3-D seismic program,  initiation of
conceptual development and drilling efficiency studies.  Exploration drilling is
expected to commence in late 2000.

Yemen:

         Blocks 50 (47.5%) and 51 (43.8%): These exploration blocks cover nearly
10 million acres. In 1999, Kerr-McGee completed exploration  commitments on both
blocks. Kerr-McGee expects to acquire additional seismic data on these blocks in
2000 to further evaluate potential  prospective areas.  Exploratory  drilling is
anticipated in 2001.

Brazil:

         Block BS-1 (40%), Santos Basin: Kerr-McGee, as operator, and Exxon have
farmed into this Petrobras concession. A 3-D seismic program is planned for 2000
with a well expected to be drilled in early 2001.

         Block BM-S-3  (30%),  Santos  Basin:  Kerr-McGee  and its partners were
successful  bidders on this National  Petroleum  Agency first bid round block in
June 1999. A 3-D seismic  program is planned for 2000 with an  exploratory  well
proposed for 2001.

Ecuador:

         Block 7 (494,000 acres):  Coca-Payamina (23%), Gacela, Lobo, Jaguar and
Mono (all 50%) comprise Kerr-McGee's producing fields in this block.  Production
averaged  approximately 13,500 gross barrels of oil per day in 1999.  Kerr-McGee
completed negotiations with the Ecuadorian government and signed an agreement on
March 23, 2000,  to convert the  previous  service  contract to a  participation
contract.  The participation  contract is projected to become effective April 1.
The Kerr-McGee Coca-Payamino working interest will increase from 23% to 50%.

         Block 21 (50%)  (494,000  acres):  Appraisal  drilling  of the  Yuralpa
structure was completed in 1999,  and a plan of development is anticipated to be
filed with the Ecuadorian  government by mid-2000.  Two  additional  exploration
wells are planned in 2000, which would complete the drilling  commitment on this
block.

         OCP Pipeline: Kerr-McGee is a member of a consortium that is evaluating
the  installation  of a new pipeline  system  planned in Ecuador.  This pipeline
should  increase the Ecuador  production  capacity by  approximately  250,000 to
300,000  barrels of oil per day,  allowing  for the  continued  expansion of the
already active Oriente Basin.

Australia:

         Bayu-Undan  Field  (11.2%):  The  Bayu-Undan  gas-condensate  field  is
located in the Zone of Cooperation  Area of the Timor Sea between  Australia and
East Timor.  During 1999, a development  plan was approved by unit  participants
and  submitted  for  regulatory  approval.  Project  sanction was received  from
regulatory agencies in February 2000. First production is expected in late 2003.

         NTP-54 (45%): Kerr-McGee is the operator of the 2.3 million acre block.
The 1999 activities included acquisition and interpretation of 2-D seismic data.
There are no well  commitments on this block.  Activities  anticipated  for 2000
include a second phase of seismic data acquisition.

         WA 276-P, WA 277-P and WA 278-P (39%):  Kerr-McGee operates these three
contiguous blocks comprising 1.8 million acres in the southern  Bonaparte Basin.
The 1999 activities included acquisition and interpretation of 2-D seismic data.
Plans for 2000 are to drill four  exploratory  commitment  wells on these  three
blocks.
                                    CHEMICALS

         Kerr-McGee  Corporation's  chemical  operations consist of two segments
(pigment and other) that produce and market  inorganic  industrial and specialty
chemicals,   heavy  minerals  and  forest  products  through  its  subsidiaries,
Kerr-McGee  Chemical LLC, KMCC Western Australia Pty. Ltd.,  Kerr-McGee Pigments
GmbH & Co. KG, Kerr-McGee Pigments N.V. and Kerr-McGee Pigments Limited. Many of
these  products are  processed  using  proprietary  technology  developed by the
company.

         Industrial  chemicals  include  titanium  dioxide  pigment,   synthetic
rutile,  manganese products and sodium chlorate.  Specialty  chemicals are boron
trichloride and elemental boron. Heavy minerals produced are ilmenite, synthetic
and natural  rutile,  zircon and leucoxene.  Forest  products  operations  treat
railroad  crossties  and  other  hardwood  products  and  provide  wood-treating
services.

     On February 14, 2000, the company reached definitive agreements, subject to
government  approvals,  with  Kemira  Oyj of Finland to  purchase  its  titanium
dioxide pigment operations in Savannah, Georgia, and Botlek, the Netherlands for
$403 million. Both plants use Kerr-McGee's proprietary chloride technology,  and
the  Savannnah  plant also  produces  titanium  dioxide  pigment by the  sulfate
process.

Pigment

         The company's  primary  chemical  product is titanium  dioxide pigment,
which is produced at four titanium  dioxide  (TiO2) plants located in the United
States, Australia, Germany and Belgium. The plants in Hamilton, Mississippi, and
Kwinana,  Western  Australia,  manufacture TiO2 using the company's  proprietary
chloride-process  technology.  The plants in  Uerdingen,  Germany,  and Antwerp,
Belgium, produce TiO2 using the sulfate process.

         The  company's  TiO2 plant at Hamilton,  Mississippi,  has a production
capacity of 188,000  tonnes per year. A plant  expansion  completed in the third
quarter of 1999 increased the facility's  annual  production  capacity by 25% or
38,000 tonnes. The feedstock for the Hamilton plant is synthetic rutile from the
company's plant at Mobile,  Alabama. The annual production capacity at Mobile is
200,000 tonnes.

         The company  also owns an 80%  interest  in TiO2  plants in  Uerdingen,
Germany,  and Antwerp,  Belgium.  The annual capacity for the Uerdingen plant is
100,000 tonnes and for the Antwerp plant is 30,000 tonnes.

         The company  owns a 50% interest in a joint  venture  that  operates an
integrated  TiO2 project located within 120 miles of Perth,  Western  Australia.
The  project  consists  of a  heavy-minerals  mine and mill and  facilities  for
production of synthetic rutile and TiO2.

         Heavy  minerals  are mined  from  20,793  acres  that are leased by the
Western  Australia  joint venture.  The company's 50% interest in the property's
remaining  in-place proven and probable  reserves is 5.8 million tonnes of heavy
minerals  containing 161 million  tonnes of sand averaging 3.6% heavy  minerals.
The valuable heavy minerals are composed of 4.4% rutile,  60.6%  ilmenite,  3.3%
leucoxene and 10.9% zircon, with the remaining 20.8% of heavy minerals presently
having no value.

         The  heavy  minerals  are  processed  at  the  675,000   tonne-per-year
separation mill. The recovered ilmenite is processed into synthetic rutile at an
adjoining synthetic rutile facility,  which has a capacity of 195,000 tonnes per
year. The production from the synthetic rutile plant serves as feedstock for the
pigment plant in Kwinana,  Western Australia.  The annual production capacity of
the pigment plant in Kwinana,  Western Australia, is 85,000 tonnes, in which the
company owns a 50% interest.

         Information regarding  heavy-mineral  reserves,  production and average
prices  for the three  years  ended  December  31,  1999,  is  presented  in the
following  table.  Mineral  reserves  in  this  table  represent  the  estimated
quantities  of  proved  and  probable  ore  that,  under  presently  anticipated
conditions,  may be profitably  recovered  and  processed for the  extraction of
their mineral content. Future production of these resources is dependent on many
factors, including market conditions and government regulations.

(Thousands of tonnes)                   1999              1998             1997
- ---------------------                  -----             -----            -----

Proved and probable (demonstrated)
  reserves                             5,800             5,600            5,900

Production                               199               209              212

Average market price (per tonne)        $131              $124             $140

         The company  also owns a 25% equity  interest in a TiO2 plant in Yanbu,
Saudi Arabia. The plant uses the company's  proprietary  chloride process in its
manufacturing process and has a total production capacity of 67,000 tonnes.

Other Products

         Electrolytic  Products  -  Facilities  at  the  Hamilton,  Mississippi,
complex  include a sodium  chlorate plant with a production  capacity of 130,000
tonnes  per year and a  manganese  metal  plant that has an annual  capacity  of
11,000 tonnes.

         The  Henderson,  Nevada,  facilities  include  electrolytic  cells  and
processing  equipment for the  manufacture of manganese  dioxide and a specialty
boron products plant. Annual production capacity for each product is as follows:
manganese dioxide - 26,500 tonnes;  boron trichloride - 340,000  kilograms;  and
elemental boron - 36,000 kilograms.

         Forest  Products - The  principal  forest  product is treated  railroad
crossties. Other products include crossing materials, bridge timbers and utility
poles.  The  company's six  operating  wood-preserving  plants are located along
major  railways  in  Madison,   Illinois;   Indianapolis,   Indiana;   Columbus,
Mississippi; Springfield, Missouri; The Dalles, Oregon; and Texarkana, Texas.

Marketing

         Pigment - Titanium  dioxide  pigment  is the  world's  preferred  white
opacifier and is used primarily in coatings,  plastics and paper.  The company's
plant at  Hamilton,  Mississippi,  primarily  serves the  Americas.  Most of the
pigment production from the joint venture in Kwinana, Western Australia, is sold
in the Far East and Australia.  The production from the Uerdingen,  Germany, and
Antwerp,  Belgium,  operations is primarily sold in Europe.  Kerr-McGee's annual
TiO2  sales  represented  about  10% of global  consumption.  World  demand  for
pigments is  expected to increase at an average  rate of 2.5 to 3% per year over
the next five years.

         Other - Manganese  dioxide is a major component of alkaline  batteries.
The  company's  share  of  the  North  American   manganese  dioxide  market  is
approximately  one-third.  Demand is projected to grow 5% to 8% annually for the
next five years.  The demand is driven by the need for  alkaline  batteries  for
portable electronic devices.

         Sodium  chlorate  is used  in the  environmentally  preferred  chlorine
dioxide process for bleaching pulp.  Sodium chlorate demand in the United States
is expected to increase  approximately  5% annually in the near term as the pulp
and paper industry continues the conversion to the chlorine dioxide process. The
company has about a 7% share of the U.S. market.

         Manganese  metal is used in aluminum,  specialty  and  stainless  steel
alloys.  The primary use of manganese metal is for alloying  aluminum can sheet.
The company supplies  approximately 40% of the U.S. aluminum industry  manganese
requirements.

         Kerr-McGee is the largest producer of boron trichloride,  which is used
to  produce   boron   filament  for  sports   equipment   and   composites   for
high-performance aircraft, pharmaceuticals and semi-conductors.

         The  company's  share  of the U.S.  railroad  crosstie  market  is 33%.
Domestic  crosstie  demand is  expected  to remain  relatively  flat at about 13
million to 15 million ties per year.


                                      OTHER

Research and Development
- ------------------------

         The company's  Technical Center in Oklahoma City performs  research and
development  in support of its  existing  businesses  and in the  pursuit of new
products and processes.  These programs  continue to concentrate on improvements
to chemical plant processes and products.

Employees
- ---------

         On December 31, 1999,  the company had 3,653  employees.  Approximately
600, or 17% of these employees, were represented by chemical industry collective
bargaining agreements in Europe.

Competitive Conditions
- ----------------------

         In the petroleum industry,  competition exists from the initial process
of bidding  for  leases to the sale of crude oil and  natural  gas.  Competitive
factors  include  finding  and  developing  petroleum,  producing  crude oil and
natural gas  efficiently,  transporting  the produced crude oil and natural gas,
and developing successful marketing strategies.

         The titanium dioxide pigment business is very  competitive.  The number
of  competitors  in the industry has  declined due to recent  consolidations,  a
trend  that is  expected  to  continue  as  companies  owning  chloride  process
technology  acquire  operations  that use the older  sulfate  technology.  It is
expected  that many of these  sulfate  plants will be  converted to the chloride
technology.  Worldwide,  Kerr-McGee  is one of  only  four  companies  that  own
chloride  technology to produce titanium dioxide pigment.  Cost efficiencies and
product  quality are key  competitive  factors in the titanium  dioxide  pigment
business.

         It is not  possible  to  predict  the effect of future  competition  on
Kerr-McGee's operating and financial results.

                GOVERNMENT REGULATIONS AND ENVIRONMENTAL RESERVES

General
- -------

         The company is subject to extensive regulation by federal, state, local
and foreign governments. The production and sale of crude oil and natural gas in
the United States are subject to  regulation  by federal and state  authorities,
particularly with respect to allowable rates of production, offshore exploration
and production,  and environmental matters.  Stringent  environmental-protection
laws and  regulations  apply  to  almost  all of the  company's  operations.  In
addition, there are special taxes that apply to the oil and gas industry.

Environmental Matters
- ---------------------

         Federal, state and local laws and regulations relating to environmental
protection affect almost all company operations. During 1999, direct capital and
operating  expenditures  related  to  environmental  protection  and  cleanup of
existing  sites  totaled $22  million.  Additional  expenditures  totaling  $121
million were charged to environmental reserves.  While it is extremely difficult
to estimate  the total direct and  indirect  costs to the company of  government
environmental regulations, it is presently estimated that the direct capital and
operating   expenditures   and   expenditures   charged  to  reserves   will  be
approximately  $145 million in 2000 and $120 million in 2001. Some  expenditures
to reduce the occurrence of releases to the  environment may result in increased
efficiency;  however, most of these expenditures produce no significant increase
in production  capacity,  efficiency or revenue.  Operation of pollution-control
equipment installed for these purposes usually entails additional expense.

         Environmental  laws and  regulations  obligate  the company to clean up
various sites at which petroleum, chemicals, low-level radioactive substances or
other regulated materials have been disposed of or released. Some of these sites
have been designated  Superfund  sites by the EPA pursuant to the  Comprehensive
Environmental Response, Compensation, and Authority Act of 1980.

         The company provides for costs related to contingencies  when a loss is
probable and the amount is reasonably estimable.

         It is not possible for the company to reliably  estimate the amount and
timing of all future expenditures related to environmental matters because of:

     -  the difficulty of predicting cleanup requirements and estimating cleanup
        costs;

     -  the uncertainty in quantifying  liability under environmental laws  that
        impose  joint  and  several  liability  on  all  potentially responsible
        parties; and

     -  the continually changing nature of  environmental  laws and regulations,
        and the uncertainty inherent in legal matters.

         The company  believes  that  currently it has reserved  adequately  for
contingencies.  However, additions to the reserves may be required as additional
information  is  obtained  that  enables  the  company  to better  estimate  its
liability, including any liability at sites now being studied, though management
cannot now reliably estimate the amount of any future additions to the reserves.

         Also see "Item 3.  Legal Proceedings," which follows.

Item 3.   Legal Proceedings

         The company  continues its efforts to  decommission  a facility in West
Chicago,  Illinois,  which processed  thorium ores and was closed in 1973. For a
discussion of contingencies, including a detailed discussion of the West Chicago
matter,  reference is made to the Environmental  Matters section of Management's
Discussion and Analysis and Note 11 to the Consolidated  Financial Statements in
the 1999 Annual Report to  Stockholders,  which are incorporated by reference in
Items 7 and 8, respectively.

Item 4.   Submission of Matters to a Vote of Security Holders

         None submitted during the fourth quarter of 1999.

                      Executive Officers of the Registrant

         The following is a list of executive  officers,  their ages,  and their
positions and offices as of March 1, 2000:

<TABLE>
<CAPTION>

     Name                  Age                                     Office
- -------------------        ---     -------------------------------------------------------------------------------------

<S>                        <C>     <C>
Luke R. Corbett            53      Chief  Executive  Officer  since 1997.  Chairman of the Board since May 1999 and from
                                   1997 to February 1999. President and Chief Operating Officer from 1995 until 1997.

Tom J. McDaniel            61      Vice Chairman of the Board since 1997.  Senior Vice  President  from 1986 until 1997.
                                   Corporate Secretary from 1989 until 1997.

Robert M. Wohleber         49      Senior Vice  President and Chief  Financial  Officer since  December  1999.  Prior to
                                   joining the company in 1999,  served as Executive Vice President and Chief  Financial
                                   Officer  of  Freeport-McMoran  Exploration  Company,  President  and Chief  Executive
                                   Officer of  Freeport-McMoRan  Sulfur and Senior Vice  President  of  Freeport-McMoRan
                                   Gold and Copper Corporation.

Kenneth W. Crouch          56      Senior Vice President since 1996.  Senior Vice President,  Worldwide  Exploration and
                                   Production  operations  since 1998.  Senior Vice President,  Exploration,  Kerr-McGee
                                   Oil & Gas Corporation  from 1996 to 1998.  Senior Vice President,  North American and
                                   International  Exploration,  Exploration  and Production  Division  during 1996. Vice
                                   President, Gulf of Mexico and International  Exploration,  Exploration and Production
                                   Division from 1995 until 1996.

W. Peter Woodward          51      Senior Vice  President  since 1997.  Senior Vice  President for  Kerr-McGee  Chemical
                                   since  1997.  Senior  Vice  President  Chemical  Marketing  for  Kerr-McGee  Chemical
                                   Corporation  from  May  1996  until  1997.  Director  Pigment  Business   Management,
                                   Kerr-McGee Chemical Corporation from 1993 until 1996.

Michael G. Webb            52      Senior Vice President for Strategic  Planning since 1996. Senior Vice President since
                                   1994. Senior Vice President,  Exploration,  Exploration and Production  Division from
                                   1994 until 1996.

Gregory F. Pilcher         39      Vice  President  and  General  Counsel  since May  1999.  Corporate  Secretary  since
                                   September 1999.  Deputy General Counsel for Business  Transactions from 1998 to 1999.
                                   Associate/Assistant  General Counsel for Litigation and Civil  Proceedings  from 1996
                                   to 1998.

George D. Christiansen     55      Vice President,  Safety and Environmental  Affairs since  March 1998. Vice President,
                                   Environmental Assessment and Remediation from 1996 to 1998. Vice President,  Minerals
                                   Exploration, Hydrology and Real Estate from 1994 to 1996.

Julius C. Hilburn          49      Vice President,  Human Resources since 1996.  Manager,  Benefits  Administration from
                                   1992 until 1996.

Deborah A. Kitchens        43      Vice  President and Controller  since 1996.  Controller,  Exploration  and Production
                                   Division from 1992 until 1996.

J. Michael Rauh            50      Treasurer since 1996. Vice President since 1987.  Controller from 1987 until 1996.

Jean B. Wallace            46      Vice President,  General  Administration since 1996. Vice President,  Human Resources
                                   from 1989 until 1996.

</TABLE>


         There is no family relationship between any of the executive officers.

                           FORWARD-LOOKING INFORMATION

         Statements in this Form 10-K  regarding  the company's or  management's
intentions,  beliefs or expectations are  forward-looking  statements within the
meaning of the Securities Litigation Reform Act. Future results and developments
discussed  in these  statements  may be affected by numerous  factors and risks,
such as the  accuracy of the  assumptions  that  underlie  the  statements,  the
success of the oil and gas exploration and production  program,  drilling risks,
the  market  value  of  Kerr-McGee's  products,  uncertainties  in  interpreting
engineering data, demand for consumer products for which Kerr-McGee's businesses
supply raw materials,  general economic conditions,  and other factors and risks
discussed in the  company's SEC filings.  Actual  results and  developments  may
differ materially from those expressed or implied in this Form 10-K.

                                     PART II

Item 5.   Market  for  the  Registrant's  Common  Equity and Related Stockholder
          Matters

         Information  relative to the market in which the company's common stock
is traded, the high and low sales prices of the common stock by quarters for the
past two  years,  and the  approximate  number of  holders  of  common  stock is
furnished in Note 31 to the Consolidated Financial Statements in the 1999 Annual
Report to Stockholders, which note is incorporated by reference in Item 8.

         Quarterly  dividends  declared  totaled  $1.80  per share for the years
1999, 1998 and 1997. Cash dividends have been paid  continuously  since 1941 and
totaled $138 million in 1999, $86 million in 1998 and $85 million in 1997.

Item 6.   Selected Financial Data

         Information  regarding selected financial data required in this item is
presented in the schedule  captioned  "Six-Year  Financial  Summary" in the 1999
Annual Report to Stockholders and is incorporated herein by reference.

Item 7.   Management's  Discussion  and  Analysis  of  Financial  Condition  and
          Results of Operations

         "Management's  Discussion  and  Analysis" in the 1999 Annual  Report to
Stockholders is incorporated herein by reference.

Item 7a.  Quantitative and Qualitative Disclosure about Market Risk

         For information  required under this section,  reference is made to the
"Market  Risks"  section of  Management's  Discussion  and  Analysis in the 1999
Annual Report to  Stockholders,  which  discussion is  incorporated by reference
above.

Item 8.   Financial Statements and Supplementary Data

         The following  financial  statements and supplementary data included in
the 1999 Annual Report to Stockholders are incorporated herein by reference:

                  Report of Independent Public Accountants
                  Consolidated Statement of Income
                  Consolidated Statement of Comprehensive Income
                      and Stockholders' Equity
                  Consolidated Balance Sheet
                  Consolidated Statement of Cash Flows
                  Notes to Financial Statements

Item 9.   Change  in  and  Disagreements  with  Accountants  on  Accounting  and
          Financial Disclosure

         None.

                                    PART III

Item 10.  Directors and Executive Officers of the Registrant

(a)      Identification of directors -

              For information required under this section,  reference is made to
              the  "Director   Information"   section  of  the  company's  proxy
              statement   for  2000   made  in   connection   with  its   Annual
              Stockholders' Meeting to be held on May 9, 2000.

(b)      Identification of executive officers -

              The  information  required  under this section is set forth in the
              caption "Executive  Officers of the Registrant" on pages 18 and 19
              of this Form 10-K  pursuant  to  Instruction  3 to Item  401(b) of
              Regulation S-K and General Instruction G(3) to Form 10-K.

(c)      Compliance with Section 16(a) of the 1934 Act -

              For information required under this section,  reference is made to
              the "Section  16(a)  Beneficial  Ownership  Reporting  Compliance"
              section  of  the  company's  proxy  statement  for  2000  made  in
              connection with its Annual Stockholders' Meeting to be held on May
              9, 2000.

Item 11.  Executive Compensation

         For information  required under this section,  reference is made to the
"Executive  Compensation and Other  Information"  section of the company's proxy
statement for 2000 made in connection with its Annual  Stockholders'  Meeting to
be held on May 9, 2000.

Item 12.  Security Ownership of Certain Beneficial Owners and Management

         For information  required under this section,  reference is made to the
"Security  Ownership"  portion  of the  "Director  Information"  section  of the
company's   proxy  statement  for  2000  made  in  connection  with  its  Annual
Stockholders' Meeting to be held on May 9, 2000.

Item 13.  Certain Relationships and Related Transactions

         For information  required under this section,  reference is made to the
"Director Information" section of the company's proxy statement for 2000 made in
connection with its Annual Stockholders' Meeting to be held on May 9, 2000.

                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K

(a) 1.   Financial Statements -

         The   following   consolidated   financial   statements  of  Kerr-McGee
         Corporation  and its  subsidiary  companies,  included in the company's
         1999 Annual Report to  Stockholders,  are  incorporated by reference in
         Item 8:

           Reports of Independent Public Accountants

           Consolidated  Statement  of Income for the Years Ended  December  31,
           1999, 1998 and 1997

           Consolidated  Statement  of  Comprehensive  Income and  Stockholders'
           Equity for the Years Ended December 31, 1999, 1998 and 1997

           Consolidated Balance Sheet at December 31, 1999 and 1998

           Consolidated Statement of Cash Flows for the Years Ended December 31,
           1999, 1998 and 1997

           Notes to Financial Statements

(a) 2.   Financial Statement Schedules -

           Report of  Independent  Public  Accountants  on  Financial  Statement
           Schedule

           Schedule II - Valuation  Accounts  and  Reserves  for the Years Ended
           December 31, 1999, 1998 and 1997

         Schedules I, III, IV and V are omitted as the subject matter thereof is
         either not present or is not present in amounts  sufficient  to require
         submission of the schedules in accordance with  instructions  contained
         in Regulation S-X.

(a) 3.   Exhibits -

         The following  documents are filed under  Commission file number 1-3939
         as a part of this report.

         Exhibit No.
         -----------

         Exhibit No.

            3.1          Restated  Certificate  of  Incorporation  of Kerr-McGee
                         Corporation,  filed as Exhibit 3.1 to the report  filed
                         on Form 10-K for the year ended  December 31, 1998, and
                         incorporated herein by reference.

            3.2          Bylaws of Kerr-McGee  Corporation as approved  February
                         26,  1999,  filed as Exhibit 3.2 to the report filed on
                         Form 10-K for the year ended  December  31,  1998,  and
                         incorporated herein by reference.

            4.1          Amended and Restated Rights  Agreement dated as of July
                         9,  1996,  filed as Exhibit 1 to the report on Form 8-K
                         dated  July  9,  1996,  and   incorporated   herein  by
                         reference.

            4.2          Indenture dated as of June 1, 1976, between the company
                         and  Citibank,  N.A.,  as  trustee,   relating  to  the
                         company's  8-1/2%  Sinking Fund  Debentures due June 1,
                         2006,  filed as Exhibit 2 to Form S-7,  effective  June
                         10, 1976,  Registration  No. 2-53878,  and incorporated
                         herein by reference.

            4.3          Indenture  dated as of  November  1, 1981,  between the
                         company and United States Trust Company of New York, as
                         trustee,  relating to the company's 7%  Debentures  due
                         November  1,  2011  filed as  Exhibit  4 to Form  S-16,
                         effective November 16, 1981, Registration No. 2-772987,
                         and incorporated herein by reference.

            4.4          Indenture dated as of August 1, 1982,  filed as Exhibit
                         4 to Form S-3, effective August 27, 1982,  Registration
                         Statement  No.  2-78952,  and  incorporated  herein  by
                         reference,  and  first  supplement thereto dated May 7,
                         1996,  between   the  company and  Citibank,  N.A.,  as
                         trustee,  relating  to  the company's  6.625% notes due
                         October 15, 2007, and 7.125% debentures due October 15,
                         2027,  filed  as  Exhibit 4.1 to the Current  Report on
                         Form 8-K  filed  July 27, 1999, and incorporated herein
                         by reference.

            4.5          The $325 million Credit  Agreement dated as of December
                         4, 1996,  providing  for a five-year  revolving  credit
                         facility   with  a  bullet   maturity   on  the   fifth
                         anniversary  of the execution of the Credit  Agreement,
                         filed as Exhibit  4.5 to the report  filed on Form 10-K
                         for the year ended December 31, 1997, and  incorporated
                         herein by reference.

            4.6          The  company  agrees to furnish to the  Securities  and
                         Exchange  Commission,  upon request,  copies of each of
                         the  following  instruments  defining the rights of the
                         holders of certain  long-term debt of the company:  the
                         Note Agreement dated as of November 29, 1989, among the
                         Kerr-McGee  Corporation  Employee Stock  Ownership Plan
                         Trust (the Trust) and several lenders,  providing for a
                         loan  guaranteed  by the company of $125 million to the
                         Trust;  the Amended and restated Credit Agreement dated
                         as of April 26,  1998,  among  Kerr-McGee  Corporation,
                         Kerr-McGee Oil (U.K.) PLC, and several banks  providing
                         for  revolving  credit  of up to $150  million  through
                         April 28, 2002; the Revolving Credit Agreement dated as
                         of March 6, 2000,  between  Kerr-McGee  China Petroleum
                         Ltd.,  as  borrower,  and  Kerr-McGee  Corporation,  as
                         guarantor,  and several  banks  providing for revolving
                         credit of up to $100 million through March 3, 2003; the
                         $76  million  Credit  Agreement  dated  May  15,  1998,
                         between Kerr-McGee Resources (U.K.) Limited, Kerr-McGee
                         Andrew Limited,  Kerr-McGee  Dorset Limited and various
                         banks providing for revolving credit; the $100 million,
                         8% Note  Agreement  entered into by Oryx Energy Company
                         (Oryx)  dated as of October 20,  1995,  and due October
                         15,  2003;  the $150  million,  8.375%  Note  Agreement
                         entered into by Oryx dated as of July 17, 1996, and due
                         July 15, 2004; the $150 million,  8-1/8% Note Agreement
                         entered into by Oryx dated as of October 20, 1995,  and
                         due October 15, 2005; the $11 million,  9-1/4% Series A
                         Note Agreement  entered into by Oryx and due January 2,
                         2002; the $2.2 million,  9-1/2% Series A Note Agreement
                         entered into by Oryx and due February 1, 2002; the $150
                         million,  10% Note Agreement entered into by Oryx dated
                         as of April 10,  1991,  and due April 1, 2001;  and the
                         $150  million  variable  interest  rate Note  Agreement
                         dated as of November 1, 1999, and due November 1, 2001.
                         The total amount of securities authorized under each of
                         such  instruments  does  not  exceed  10% of the  total
                         assets  of  the  company  and  its  subsidiaries  on  a
                         consolidated basis.

            4.7          Kerr-McGee  Corporation  Direct  Purchase  and Dividend
                         Reinvestment  Plan filed on Form S-3  effective  August
                         19, 1993,  Registration No. 33-66112,  and incorporated
                         herein by reference.

            4.8          The $250 million Credit  Agreement dated as of February
                         26, 1999,  providing  for a 364- day  revolving  credit
                         facility,  filed as Exhibit 4.8 to the report  filed on
                         Form 10-K for the year ended  December  31,  1998,  and
                         incorporated herein by reference.

            4.9          The $500 million Credit  Agreement dated as of February
                         26, 1999,  providing for a three-year  revolving credit
                         facility   with  a  bullet   maturity   on  the   third
                         anniversary  of the execution of the Credit  Agreement,
                         filed as Exhibit  4.9 to the report  filed on Form 10-K
                         for the year ended December 31, 1998, and  incorporated
                         herein by reference.

            4.10         Indenture dated as of May 15, 1989, by and between Oryx
                         Energy   Company  and  Texas  Commerce  Bank  N.A.,  as
                         trustee,   relating   to  Oryx's   7-1/2%   Convertible
                         Subordinated  Debentures  due May 15,  2014,  filed  as
                         Exhibit 4.1 to Oryx's Form S-1,  effective May 5, 1989,
                         Registration No. 33-28494,  and incorporated  herein by
                         reference and the First  Supplemental  Indenture  among
                         Oryx Energy Company,  Kerr-McGee  Corporation and Chase
                         Bank of Texas,  N.A., as trustee,  dated as of February
                         26,  1999,  and filed as Exhibit  4.1 to Form 8-K filed
                         March 11, 1999, and incorporated herein by reference.

            4.11         Second  Supplement  to the  August 1,  1982,  Indenture
                         dated as of August 2, 1999,  between  the  company  and
                         Citibank,  N.A., as trustee,  relating to the company's
                         5-1/2% exchangeable notes due August 2, 2004.

           10.1*         Deferred  Compensation Plan for Non-Employee  Directors
                         as  amended  and  restated  effective  October 1, 1990,
                         filed as Exhibit 10(1) to the report filed on Form 10-K
                         for the year ended December 31, 1990, and  incorporated
                         herein by reference.

           10.2*         Kerr-McGee   Corporation  Stock  Deferred  Compensation
                         Plan for Non-Employee Directors as amended and restated
                         effective  August 1, 1995, filed as Exhibit 10.2 to the
                         report  filed on Form 10-K for the year ended  December
                         31, 1995, and incorporated herein by reference.

           10.3*         Description   of   the   company's   Annual   Incentive
                         Compensation  Plan, filed as Exhibit 10.3 to the report
                         filed  on Form  10-K for the year  ended  December  31,
                         1995, and incorporated herein by reference.

           10.4*         The  Long  Term   Incentive   Program  as  amended  and
                         restated  effective May 9, 1995,  filed as Exhibit 10.5
                         on Form 10-Q for the quarter ended March 31, 1995,  and
                         incorporated herein by reference.

           10.5*         Benefits  Restoration  Plan  as  amended  and  restated
                         effective September 13, 1989, filed as Exhibit 10(6) to
                         the report on Form 10-K for the year ended December 31,
                         1992, and incorporated herein by reference.

           10.6*         Kerr-McGee  Corporation Executive Deferred Compensation
                         Plan as amended and restated effective January 1, 1996,
                         filed as  Exhibit  10.6 to the  report on Form 10-K for
                         the year ended  December  31,  1995,  and  incorporated
                         herein by reference.

           10.7*         Kerr-McGee    Corporation    Supplemental     Executive
                         Retirement  Plan as amended and restated  effective May
                         3,  1994,  filed as  Exhibit  10.8 on Form 10-K for the
                         year ended December 31, 1994, and  incorporated  herein
                         by reference.

           10.8*         The    Kerr-McGee    Corporation    Annual    Incentive
                         Compensation  Plan  effective January 1, 1998, filed as
                         Exhibit 10.3  on  Form 10-Q for the quarter ended March
                         31, 1998, and incorporated herein by reference.

           10.9*         The  Kerr-McGee  Corporation 1998  Long  Term Incentive
                         Plan effective January 1, 1998, filed  as  Exhibit 10.4
                         on Form 10-Q for the quarter ended March 31, 1998,  and
                         incorporated herein by reference.

           10.10*        Amended  and   restated   Agreement,   restated  as  of
                         December  31,  1992,  between  the  company and John C.
                         Linehan  filed as  Exhibit  10(10) on Form 10-K for the
                         year ended December 31, 1992, and  incorporated  herein
                         by reference.

           10.11*        Amended  and   restated   Agreement,   restated  as  of
                         December  31,  1992,  between  the  company and Luke R.
                         Corbett  filed as  Exhibit  10(11) on Form 10-K for the
                         year ended December 31, 1992, and  incorporated  herein
                         by reference.

           10.12*        Amended and restated Agreement, restated as of December
                         31, 1992, between the company and Tom J. McDaniel filed
                         as  Exhibit  10.13  on  Form  10-K  for  the year ended
                         December  31,  1994,   and   incorporated   herein   by
                         reference.

           10.13*        Amended and restated Agreement, restated as of December
                         31, 1992,  between  the  company  and Kenneth W. Crouch
                         filed  as Exhibit 10.12 on Form 10-K for the year ended
                         December  31,  1997,   and   incorporated   herein   by
                         reference.

           10.14*        Form of agreement,  amended and restated as of December
                         31,  1992,  between the  company and certain  executive
                         officers  not named in the Summary  Compensation  Table
                         contained in the company's  definitive  Proxy Statement
                         for the 1998 Annual Meeting of  Stockholders,  filed as
                         Exhibit 10(14) on Form 10-K for the year ended December
                         31, 1992, and incorporated herein by reference.

           10.15*        Oryx  Energy  Company  Executive   Retirement  Plan  as
                         amended and  restated  as of January 1, 1995,  filed as
                         Exhibit  10.6 on Form 10-K for the year ended  December
                         31,  1995,  and   incorporated   herein  by  reference;
                         Amendment No. one to the Executive  Retirement  Plan as
                         amended and restated  effective  January 1, 1995, filed
                         as  Exhibit  10.6a  on Form  10-K  for the  year  ended
                         December  31,   1995,   and   incorporated   herein  by
                         reference;   Amendment   No.   two  to  the   Executive
                         Retirement  Plan  as  amended  and  restated  effective
                         January  1, 1995,  filed as Exhibit  10.6b on Form 10-K
                         for the year ended December 31, 1996, and  incorporated
                         herein by reference;  Amendments  No. three and four to
                         the Executive  Retirement  Plan as amended and restated
                         effective  January 1, 1995,  filed as Exhibit  10.6c on
                         Form 10-K for the year ended  December  31,  1997,  and
                         incorporated herein by reference.

           12            Computations of ratio of earnings to fixed charges.

           13            1999 Annual Report to Stockholders.

           21            Subsidiaries of the Registrant.

           23.1          Consent of Arthur Andersen LLP.

           23.2          Consent of PricewaterhouseCoopers LLP.

           24            Powers of Attorney.

           27            Financial Data Schedule (electronic filing only).

*These  exhibits  relate  to  the  compensation  plans  and  arrangements of the
 company.


(b)      Reports on Form 8-K -

              Current  Report on Form 8-K filed  January 19, 1999;  February 26,
              1999;  March 11, 1999; April 30, 1999; May 12, 1999; June 4, 1999;
              July 29, 1999; and October 15, 1999.  Current report on Form 8-K/A
              filed January 26, 1999; July 16, 1999; and July 26, 1999.


Report of Independent Public Accountant on Financial Statement Schedule
- -----------------------------------------------------------------------


To Kerr-McGee Corporation:

         We  have  audited  in  accordance  with  auditing  standards  generally
accepted in the United States, the consolidated financial statements included in
Kerr-McGee  Corporation's  1999 Annual Report to  Stockholders  incorporated  by
reference in this Form 10-K,  and have issued our report  thereon dated February
25,  2000.  Our audit was made for the  purpose  of  forming an opinion on those
statements taken as a whole. The Schedule of Valuation  Accounts and Reserves is
the responsibility of the company's  management and is presented for purposes of
complying with the Securities and Exchange Commission's rules and is not part of
the basic consolidated financial statements. This schedule has been subjected to
the auditing procedures applied in the audit of the basic consolidated financial
statements and, in our opinion,  fairly states,  in all material  respects,  the
financial  data  required  to be set  forth  therein  in  relation  to the basic
consolidated financial statements taken as a whole.




                                                  ARTHUR ANDERSEN LLP



Oklahoma City, Oklahoma,
     February 25, 2000



                                                                  SCHEDULE II
<TABLE>

                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
                         VALUATION ACCOUNTS AND RESERVES

<CAPTION>


                                                                        Additions
                                                                 ------------------------
                                                  Balance at     Charged to    Charged to     Deductions     Balance at
                                                   Beginning     Profit and       Other          from          End of
(Millions of dollars)                               of Year         Loss        Accounts       Reserves         Year
- ---------------------                             ----------     ----------    ----------     ----------     ----------


<S>                                                  <C>          <C>           <C>              <C>          <C>
Year Ended December 31, 1999
Deducted from asset accounts
Allowance for doubtful notes
  and accounts receivable                            $  14        $   2         $  1             $  -         $  17
Warehouse inventory obsolescence                         4            1            -                1             4
                                                     -----        -----         ----             ----         -----
        Total                                        $  18        $   3         $  1             $  1         $  21
                                                     =====        =====         ====             ====         =====

Year Ended December 31, 1998
Deducted from asset accounts
Allowance for doubtful notes
  and accounts receivable                            $  14        $   1         $  -             $  1         $  14
Warehouse inventory obsolescence                         3            2            -                1             4
                                                     -----        -----         ----             ----         -----
        Total                                        $  17        $   3         $  -             $  2         $  18
                                                     =====        =====         ====             ====         =====

Year Ended December 31, 1997
Deducted from asset accounts
Allowance for doubtful notes
  and accounts receivable                            $  13        $   2         $  -             $  1         $  14
Warehouse inventory obsolescence                         3            1                             1             3
                                                     -----        -----         ----             ----         -----
        Total                                        $  16        $   3         $  -             $  2         $  17
                                                     =====        =====         ====             ====         =====

</TABLE>

                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) 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.



                                        KERR-McGEE CORPORATION




                                        By:      Luke R. Corbett*
                                                 -----------------------
                                                 Luke R. Corbett,
                                                 Chief Executive Officer




March 30, 2000                          By:       (Robert M. Wohleber)
- --------------                                    -----------------------
   Date                                           Robert M. Wohleber
                                                  Senior Vice President and
                                                   Chief Financial Officer




                                         By:      (Deborah A. Kitchens)
                                                  ---------------------
                                                  Deborah A. Kitchens,
                                                  Vice President and Controller
                                                    and Chief Accounting Officer



*        By his  signature  set forth below,  Gregory F. Pilcher has signed this
         Annual  Report on Form 10-K as  attorney-in-fact  for the officer noted
         above,  pursuant to power of  attorney  filed with the  Securities  and
         Exchange Commission.



                                         By:      (Gregory F. Pilcher)
                                                  --------------------
                                                  Gregory F. Pilcher


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this report has been signed below by the following persons in the capacities and
on the date indicated.


                                     By:      Luke R. Corbett*
                                              -------------------------
                                              Luke R. Corbett, Director

                                     By:      William E. Bradford*
                                              -----------------------------
                                              William E. Bradford, Director

                                     By:      Sylvia A. Earle*
                                              -------------------------
                                              Sylvia A. Earle, Director

                                     By:      David C. Genever-Watling*
                                              ----------------------------------
                                              David C. Genever-Watling, Director

March 30, 2000                       By:      Martin C. Jischke*
- --------------                                ---------------------------
   Date                                       Martin C. Jischke, Director

                                     By:      Tom J. McDaniel*
                                              -------------------------
                                              Tom J. McDaniel, Director

                                     By:      William C. Morris*
                                              ---------------------------
                                              William C. Morris, Director

                                     By:      John J. Murphy*
                                              ------------------------
                                              John J. Murphy, Director

                                     By:      Leroy C. Richie*
                                              -------------------------
                                              Leroy C. Richie, Director

                                     By:      Matthew R. Simmons*
                                              ----------------------------
                                              Matthew R. Simmons, Director

                                     By:      Farah M. Walters*
                                              --------------------------
                                              Farah M. Walters, Director

                                     By:      Ian L. White-Thomson*
                                              ------------------------------
                                              Ian L. White-Thomson, Director


         *By his signature  set forth below,  Gregory F. Pilcher has signed this
         Annual Report on Form 10-K as attorney-in-fact  for the directors noted
         above, pursuant to the powers of attorney filed with the Securities and
         Exchange Commission.


                                          By:      (Gregory F. Pilcher)
                                                   --------------------
                                                   Gregory F. Pilcher



                                                                    Exhibit 4.11


                             KERR-McGEE CORPORATION



                                       to



                                CITIBANK, N.A.,
                                   as Trustee








                         Second Supplemental Indenture

                              Dated August 2, 1999

                    Supplementing and Amending the Indenture
                           Dated as of August 1, 1982












                THIS  SECOND  SUPPLEMENTAL  INDENTURE,   dated  August  2,  1999
(hereinafter  called  the  "Supplemental  Indenture"),   is  between  KERR-McGEE
CORPORATION, a Delaware corporation (hereinafter called the "Corporation"),  and
CITIBANK, N.A., a national banking association duly organized and existing under
the laws of the  United  States of  America,  as  Trustee  under  the  Indenture
referred to below (hereinafter called the "Trustee").

                                    RECITALS

                The Company and the Trustee are parties to an  Indenture,  dated
as of August 1, 1982,  as amended  (the  "Indenture"),  relating to the issuance
from time to time by the Company of its  Securities  on terms to be specified at
the time of issuance.  Capitalized  terms used herein and not otherwise  defined
shall have the meanings assigned to them in the Indenture.

                The Company has duly  authorized the creation of a series of its
Securities  denominated  its  "5-1/2% Exchangeable  Notes Due  August  2,  2004"
representing up to 9,954,000 of its "Debt Exchangeable for Common StockSM" (such
Securities  being referred to herein as the "DECSSM"),  the principal  amount of
which is mandatorily  exchangeable at Maturity into shares of Common Stock,  par
value $0.10 per share (the "Devon  Common  Stock") of Devon  Energy  Corporation
("Devon"),  or, at the option of the Company (under the circumstances  described
herein),  cash, in either case at the Exchange Rate (as defined  herein)  and/or
such other consideration as permitted or required by the terms of the DECS.

                The Company has duly  authorized  the  execution and delivery of
this Supplemental Indenture in order to provide for the issuance of the DECS.

                The Company has requested the Trustee and the Trustee has agreed
to join with it in the execution and delivery of this Supplemental Indenture.

                Section  901(f)  of the  Indenture  provides  that the  Company,
acting  pursuant to a Board  Resolution,  and the Trustee,  at any time and from
time to time, may enter into an indenture  supplemental to the Indenture to make
such  provisions  in regard to matters or questions  arising under the Indenture
which shall not adversely affect the interests of any Holders of Securities.

                The Company  has  determined  that  this  Supplemental Indenture
 complies with Section 901(f) and does not require the consent of any Holders of
 Securities.   On  the  basis  of the foregoing, the Trustee has determined that
 this Supplemental Indenture is in form satisfactory to it.

                The  Company  has   furnished  the  Trustee  with  an  Officer's
Certificate and an Opinion of Counsel complying with the requirements of Section
905 of the Indenture,  stating that the execution of this Supplemental Indenture
is authorized or permitted by the Indenture,  and has delivered to the Trustee a
Board  Resolution  authorizing  the execution and delivery of this  Supplemental
Indenture,  together  with such other  documents  as may have been  required  by
Section 102 of the Indenture.

                All things necessary to make this Supplemental Indenture a valid
agreement of the Company and the Trustee and a valid amendment of and supplement
to the Indenture have been done.

                The entry into this Supplemental Indenture by the parties hereto
is in all respects authorized by the provisions of the Indenture.

                The Company has duly  authorized  the  execution and delivery of
this Supplemental Indenture, and all things necessary have been done to make the
DECS, when executed by the Company and authenticated and delivered hereunder and
duly issued by the Company,  the valid  obligations of the Company,  and to make
this Supplemental Indenture a valid agreement of the Company, in accordance with
their and its terms.

                NOW THEREFORE:

                It  is  mutually  covenanted  and  agreed,  for  the  equal  and
proportionate benefit of all Holders of the DECS, as follows:

                                   I ARTICLE

I.1.            SECTION   Definitions.

                For  all  purposes  of  the  Indenture  and  this   Supplemental
Indenture as they relate to the DECS, except as otherwise  expressly provided or
unless the context otherwise requires:

(1)             the terms defined in this Article have  the meanings assigned to
them in this Article;

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

(1)             capitalized   terms  used  but  not  defined  herein are used as
they are defined in the Indenture.

                "Adjustment Event" has the meaning set forth in Section 2.04(b).

                "Business Day" means any day that is not a Saturday, a Sunday or
a day on which the NYSE or banking  institutions  or trust companies in The City
of New York are authorized or obligated by law or executive order to close.

                "Closing  Price" of any  security  on any date of  determination
means (i) the closing sale price (or, if no closing price is reported,  the last
reported  sale price) of such  security  (regular way) on the NYSE on such date,
(ii) if such security is not listed for trading on the NYSE on any such date, as
reported  in  the  composite   transactions  for  the  principal  United  States
securities exchange on which such security is so listed,  (iii) if such security
is not so listed on a United States national regional  securities  exchange,  as
reported by the Nasdaq Stock  Market,  (iv) if such security is not so reported,
the last quoted bid price for such  security in the  over-the-counter  market as
reported by the National  Quotation  Bureau or similar  organization,  or (v) if
such security is not so quoted, the average of the mid-point of the last bid and
ask prices for such security from each of at least three  nationally  recognized
independent investment banking firms selected by the Company for such purpose.

                "DECS"  has  the  meaning  set  forth  in  the  recitals to this
Supplemental Indenture.

                "Devon Common Stock" has  the  meaning set forth in the recitals
to this Supplemental Indenture.

                "Dilution Event"  has  the  meaning set forth in Section 2.05(a)
(ii).

                "Exchange  Rate" means a rate equal to (a) if the Maturity Price
is greater  than or equal to $39.16125  (the  "Threshold  Appreciation  Price"),
0.84746 shares of Devon Common Stock per DECS, (b) if the Maturity Price is less
than the Threshold  Appreciation  Price but is greater than the Initial Price, a
fraction  equal to (i) the Initial Price  divided by (ii) the Maturity  Price of
one share of Devon Common Stock per DECS (such fractional share being calculated
to the nearest 1/100,000th of a share or, if there is not a nearest  1/100,000th
of a share,  to the next higher  1/100,000th of a share) and (c) if the Maturity
Price is less than or equal to the  Initial  Price,  one  share of Devon  Common
Stock  per  DECS;  provided,  however,  that the  Exchange  Rate is  subject  to
adjustment from time to time pursuant to Section 2.04(a).

                "Initial Price" means $33.1875 per share of Devon Common Stock.

                "Market  Price"  means,  as of any  date of  determination,  the
average  Closing  Price per share of Devon  Common Stock for the 20 Trading Days
immediately  prior to (but not including) the date of  determination;  provided,
however,  that if there  are not 20  Trading  Days for the  Devon  Common  Stock
occurring  later  than the 60th  calendar  day  immediately  prior  to,  but not
including,  such date, the Market Price shall mean the market value per share of
Devon Common  Stock as of such date as  determined  by a  nationally  recognized
investment banking firm retained for such purpose by the Company.

                "Maturity"  means  the date on  which  the  principal  of a DECS
becomes  due and payable as provided  herein,  whether at Stated  Maturity or by
declaration of acceleration or otherwise.

                "Maturity  Price" means the average  Closing  Price per share of
Devon  Common  Stock  on the 20  Trading  Days  immediately  prior  to (but  not
including)  the date of Maturity;  provided,  however,  that if there are not 20
Trading Days for the Devon Common Stock  occurring  later than the 60th calendar
day  immediately  prior to, but not  including,  the date of Maturity,  Maturity
Price means the market  value per share of Devon  Common Stock as of Maturity as
determined  by a  nationally  recognized  independent  investment  banking  firm
retained for such purpose by the Company.

                "NYSE" means the New York Stock Exchange, Inc.

                "Ordinary   Cash   Dividend"   has  the  meaning  set  forth  in
subparagraph (b)(5) of Section 2.04.

                "Reported Securities" has the meaning set forth in  subparagraph
(b)(3) of Section 2.04.

                "Share  Components"  means the ratios of shares of Devon  Common
Stock per DECS  specified  in  clauses  (a),  (b) and (c) of the  definition  of
"Exchange Rate" set forth in this Article.

                "Threshold  Appreciation Price" has the meaning specified in the
definition of "Exchange Rate" set forth in this Article.

                "Trading  Day" means a Business Day on which the  security,  the
Closing Price of which is being determined, (a) is not suspended from trading on
any national or regional  securities exchange or association or over-the-counter
market at the close of business and (b) has traded at least once on the national
or regional securities  exchange or association or over-the-counter  market that
is the primary market for the trading of such security.

                "Transaction  Value"  means  (a) for any  cash  received  in any
Adjustment  Event,  the amount of cash received per share of Devon Common Stock,
(b) for any Reported  Securities  received in any  Adjustment  Event,  an amount
equal to (x) the average Closing Price per security of such Reported  Securities
for the 20  Trading  Days  immediately  prior  to (but not  including)  Maturity
multiplied by (y) the number of such Reported  Securities (as adjusted  pursuant
to subparagraph  (b)(4) of Section 2.04) receive per share of Devon Common Stock
and (c) for any  property  received in any  Adjustment  Event other than cash or
such  Reported  Securities,  an  amount  equal to the fair  market  value of the
property  received per share of Devon Common Stock on the date such  property is
received,  as  determined  by a nationally  recognized  investment  banking firm
retained for this purpose by the Company; provided, however, that in the case of
clause (b),  (x) with respect to  securities  that are  Reported  Securities  by
virtue of only clause (iv) of the definition of Reported  Security,  Transaction
Value  with  respect  to any such  Reported  Security  means the  average of the
mid-point  of the  last bid and ask  prices  for such  Reported  Security  as of
Maturity  from  each  of  at  least  three  nationally  recognized   independent
investment  banking firms retained for such purpose by the Company multiplied by
the number of such Reported  Securities  (as adjusted  pursuant to  subparagraph
(b)(4) of Section  2.04)  received  per share of Devon Common Stock and (y) with
respect to all other Reported  Securities,  if there are not 20 Trading Days for
any  particular  Reported  Security  occurring  later than the 60th calendar day
immediately prior to, but not including, the date of Maturity, Transaction Value
with respect to such  Reported  Security  means the market value per security of
such Reported  Security as of Maturity as determined by a nationally  recognized
investment  banking firm retained for such purpose by the Company  multiplied by
the number of such Reported  Securities  (as adjusted  pursuant to  subparagraph
(b)(4) of Section 2.04)  received per share of Devon Common Stock.  For purposes
of calculating the Transaction  Value,  any cash,  Reported  Securities or other
property  receivable  in any  Adjustment  Event  shall be  deemed  to have  been
received  immediately prior to the close of business on the record date for such
Adjustment  Event  or,  if there is no record  date for such  Adjustment  Event,
immediately  prior  to the  close  of  business  on the  effective  date of such
Adjustment Event.

I.1.            Section   Effect of Headings.

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

I.1.            Section   Successors and Assigns.

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

I.1.            Section   Separability.

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

I.1.            Section   Conflict with Trust Indenture Act.

                If any  provision  hereof  limits,  qualifies or conflicts  with
another  provision hereof which is required to be included in this  Supplemental
Indenture  by any of the  provisions  of the  Trust  Indenture  Act of 1939,  as
amended, such required provisions shall control.

I.1.            Section   Benefits of Supplemental Indenture.

                Nothing in this  Supplemental  Indenture,  expressed or implied,
shall give to any  person,  other than the parties  hereto and their  successors
hereunder,  and the  Holders of the DECS any  benefit or any legal or  equitable
right, remedy or claim under this Supplemental Indenture.

I.1.           Section   Application of Supplemental Indenture.

               This Supplemental Indenture shall take effect on the date hereof,
and  shall,  except  with respect to Section 1.09, apply only to the DECS.  This
Supplemental  Indenture  shall  have  no effect on any other Securities, whether
originally  issued  prior to the date hereof or thereafter.  If any provision of
this  Supplemental  Indenture  is  inconsistent   with  any  provision   of  the
Indenture, then, to the extent permitted by the Indenture, the provision in this
Supplemental Indenture shall control.

I.1.            SECTION   Governing Law.

                THIS SUPPLEMENTAL INDENTURE AND THE DECS SHALL BE DEEMED TO BE A
CONTRACT  MADE  UNDER  THE LAWS OF THE  STATE OF NEW YORK AND THIS  SUPPLEMENTAL
INDENTURE  AND EACH SUCH DECS SHALL BE GOVERNED BY AND  CONSTRUED IN  ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK.

                Section 1.09.  Section 301 of the Indenture is hereby amended as
follows:

                (a)     By amending Section 301 of the Indenture by deleting the
word "and" at the end of clause (12), by renumbering clause (13)  of Section 301
as clause (14), and by inserting a new Section (13) as follows:

                        (13) the terms and  conditions,  if any,  upon which the
Securities of the series may or shall be  convertible  into or  exchangeable  or
exercisable   for  or  payable  in,  among  other  things,   other   securities,
instruments,  contracts,  currencies,  commodities  or other forms of  property,
rights or interests or any combination of the foregoing; and

                (b)     By  amending  clause  (c) of Section 601 by deleting the
word  "and"  at  the  end  of  clause (3), by replacing the period at the end of
clause (4) with "and", and by inserting as a new clause (5) as follows:

                        (5)     the  Trustee  shall not at any time be under any
duty  or  responsibility  to  any  Holder  of  a  Security  that may or shall be
convertible  into  or exchangeable or exercisable for or payable in, among other
things, other securities,   instruments,   contracts, currencies, commodities or
other  forms  of  property,  rights  or  interests  or  any  combination  of the
foregoing, (A)  to make or cause to be made any adjustment of the amount of the,
among other things securities,  instruments, contracts, currencies,  commodities
or  other  forms  of  property,   rights or interests or any combination  of the
foregoing  that may be issued,  transferred  or delivered to such Holder,  or to
determine  whether  any  facts  exist which may require any such adjustment,  or
with  respect  to the nature or extent of any such adjustment when made, or with
respect  to  any  method  employed  in  making  the same, (B) to account for the
validity  or  value  (or  the  kind  or  amount)  of  the,  among other  things,
securities,  instruments,  contracts, currencies, commodities or others forms of
property,  rights or interests or any  combination  of the foregoing that may at
any time be issued,  transferred or delivered to such Holder or (C) with respect
to the  failure of the Company to issue,  transfer or deliver any of the,  among
other things, securities,  instruments,  contracts,  currencies,  commodities or
other forms of property, rights or interests or any combination of the foregoing
pursuant to the terms of such Security.

                (c)     By amending clause (i) of Section 902 by inserting after
the last comma at the end of such clause the following: "or change  the terms or
conditions  of  any Securities so as to adversely affect the terms or conditions
upon  which  such Securities are convertible into or exchangeable or exercisable
for or payable in, among other things, other securities, instruments, contracts,
currencies,  commodities  or other forms of property, rights or interests or any
combination of the foregoing."


                                   I ARTICLE
                                    The DECS

I.1.            Section   Title and Terms.

                There  is  hereby  created  under  the  Indenture  a  series  of
Securities  known  and designated as the "51/2% Exchangeable Notes Due August 2,
2004"  of  the  Company.   The  aggregate  principal  amount of DECS that may be
authenticated  and  delivered  under  this  Indenture is limited to $330,348,375
million,  except  for  DECS  authenticated and delivered upon reregistration of,
transfer  of,  or in exchange for, or in lieu of, other DECS pursuant to Section
305, 306, 307, 904 and 1103 of the Indenture.

                The Stated  Maturity  for payment of principal of the DECS shall
be August 2, 2004 and the DECS shall bear  interest  (computed on the basis of a
360-day  year of twelve  30-day  months)  at the rate of 51/2% of the  principal
amount per annum, from the date of original issuance or the most recent Interest
Payment Date to which  interest has been paid or duly  provided  for,  until the
principal  amount thereof is exchanged at maturity  pursuant to the terms of the
DECS.  Interest on the DECS shall be payable quarterly in arrears on February 1,
May 1, August 1 and November 1 of each year,  commencing November 1, 1999 (each,
an  "Interest  Payment  Date"),  to the  persons in whose names the DECS (or any
predecessor  securities)  are registered at the close of business on the January
15, April 15, July 15 and October 15 immediately preceding such Interest Payment
Date, until the principal thereof is paid or made available for payment provided
that  interest  payable at  Maturity  shall be payable to the person to whom the
Devon Common Stock is deliverable.

                The  DECS  shall  be  initially  issued  in the form of a Global
Security and the Depositary for the DECS shall be the Depository  Trust Company,
New York, New York.

                The DECS  shall not be redeemable prior to their Stated Maturity
and  shall  not  be  subject  to  any sinking fund.  The DECS are not subject to
payment prior to the date of Maturity at the option of the Holder.

                The DECS  shall  be  mandatorily  exchangeable  as  provided  in
Section 2.02.

                The Company shall not be obligated to pay any additional amounts
on the DECS in respect of taxes,  except as  otherwise  provided in Section 2.06
and 3.01.

                The DECS shall be  issuable  in  denominations  of $1000 and any
amounts in excess thereof.

                The  DECS  shall  not  be  issued  as  Original  Issue  Discount
Securities.

                The form of DECS attached hereto as Exhibit A is hereby adopted,
as a form of Securities of a series that consists of DECS.  Certain terms of the
DECS are set forth in the form of the DECS.

                With  respect  to  the DECS only and for the benefit of only the
Holders  thereof,  the  failure on the part of the Company to observe or perform
any  of  the  covenants  or agreements on the part of the Company in this Second
Supplemental  Indenture  not otherwise specified in Section 501 of the Indenture
shall  be an additional Event of Default with respect to the DECS as if and, for
all  purposes  under  the  Indenture,  to  the  same  extent as if the same were
specified in paragraph (d) of such Section 501 of the Indenture.

I.1.            Section   Exchange at Maturity.

                Subject to Section 2.04(b),  at Maturity the principal amount of
each DECS shall be mandatorily  exchanged by the Company into a number of shares
of Devon Common Stock at the Exchange Rate; provided, however, that, pursuant to
Section 2.03, no fraction of a share of Devon Common Stock shall be issued.  The
Holders  of the  DECS  shall  be  responsible  for  the  payment  of any and all
brokerage costs upon the subsequent sale of such shares. The Company may, at its
option,  in lieu of  delivering  Devon Common  Stock,  deliver cash in an amount
(calculated  to the  nearest  1/100th of a dollar per DECS or, if there is not a
nearest 1/100th of a dollar,  then to the next higher 1/100th of a dollar) equal
to the  product  of the  number  of  shares  of  Devon  Common  Stock  otherwise
deliverable  in respect of such DECS on the date of Maturity,  multiplied by the
Maturity Price; provided, however, that if such option is exercised, the Company
shall  deliver  cash with  respect to all,  but not less than all,  of the Devon
Common Stock that would otherwise be  deliverable.  In determining the amount of
cash deliverable in exchange for the DECS in lieu of Devon Common Stock pursuant
to the prior sentence  hereof,  if more than one DECS shall be  surrendered  for
exchange  at one time by the same  Holder,  the  amount of cash  which  shall be
delivered upon exchange  shall be computed on the basis of the aggregate  number
of DECS so surrendered at Maturity.

I.1.            Section   No Fractional Shares.

                If more than one DECS shall be surrendered for exchange pursuant
to Section  2.02 at one time by the same  Holder,  the number of full  shares of
Devon Common  Stock or Reported  Securities  which shall be delivered  upon such
exchange,  in whole or in part,  as the case may be,  shall be  computed  on the
basis of the aggregate  number of DECS  surrendered  at Maturity.  No fractional
shares or scrip representing fractional shares of Devon Common Stock or Reported
Securities shall be issued or delivered upon any exchange  pursuant  to  Section
2.02 of any  DECS. In lieu of any fractional share of Devon  Common  Stock or of
Reported  Securities which, but for the immediately  preceding  sentence,  would
otherwise be deliverable upon such exchange, the Company, through any applicable
Paying Agent,  shall make a cash payment in respect of such fractional  interest
in an amount equal to the value of such  fractional  share of Devon Common Stock
or Reported  Security  at the  Maturity  Price.  The  Company  shall,  upon such
exchange of any DECS,  provide cash to any applicable  Paying Agent in an amount
equal to the cash payable with respect to any fractional  shares of Devon Common
Stock  deliverable  upon  such  exchange,  and the  Company  shall  retain  such
fractional shares of Devon Common Stock.

I.1.            Section   Adjustment of Exchange Rate.

(a)               Adjustment  for  Distributions,  Reclassifications,  etc.  The
Exchange Rate shall be subject to adjustment from time to time as follows:

(i)                       If Devon shall:

(A) pay a stock dividend or make a distribution, in either case, with respect to
the Devon Common Stock in shares of such stock;

(A)  subdivide  or split the  outstanding  shares of Devon  Common  Stock into a
greater number of shares;

(A) combine the  outstanding  shares of Devon Common Stock into a smaller number
of shares; or

(A)       issue  by  reclassification (other than a reclassification pursuant to
clause  (ii),  (iii),  (iv)  or  (v)  of  the definition  of Adjustment Event in
paragraph  (b)  of  this  Section) of shares of Devon Common Stock any shares of
common stock of Devon;

                 then, in any such event, the Exchange Rate shall be adjusted by
                 adjusting each of the Share  Components of the Exchange Rate in
                 effect  immediately prior to such event so that a holder of any
                 DECS shall be entitled to receive,  upon  exchange  pursuant to
                 Section 2.02 of the principal  amount of such DECS at Maturity,
                 the number of shares of Devon  Common Stock (or, in the case of
                 a reclassification  referred to in clause (D) of this sentence,
                 the  number  of shares of other  common  stock of Devon  issued
                 pursuant  thereto)  which  such  holder of such DECS would have
                 owned or been entitled to receive  immediately  following  such
                 event had such DECS been  exchanged  immediately  prior to such
                 event or any  record  date  with  respect  thereto.  Each  such
                 adjustment shall become effective at the opening of business on
                 the   Business   Day  next   following   the  record  date  for
                 determination  of holders of Devon  Common  Stock  entitled  to
                 receive such dividend or distribution in the case of a dividend
                 or distribution  and shall become effective  immediately  after
                 the  effective  date  in  the  case  of a  subdivision,  split,
                 combination or reclassification.  Each such adjustment shall be
                 made successively.

(i)                  If Devon  shall,  after the date  hereof,  issue  rights or
warrants to all holders of Devon Common Stock entitling them to subscribe for or
purchase  shares of Devon  Common  Stock  (other than  rights to purchase  Devon
Common Stock  pursuant to a plan for the  reinvestment  of dividends) at a price
per share less than the Market  Price of the Devon  Common Stock on the Business
Day next following the record date for the determination of holders of shares of
Devon  Common Stock  entitled to receive  such rights or warrants,  then in each
case,  the  Exchange  Rate shall be  adjusted by  multiplying  each of the Share
Components  of  the  Exchange  Rate  in  effect  on  the  record  date  for  the
determination  of holders of Devon Common Stock  entitled to receive such rights
or warrants,  by a fraction,  of which the numerator  shall be (A) the number of
shares of Devon Common Stock outstanding on such record date plus (B) the number
of additional  shares of Devon Common Stock offered for subscription or purchase
pursuant to such rights or warrants,  and of which the denominator  shall be (x)
the number of shares of Devon Common Stock  outstanding on such record date plus
(y) the number of  additional  shares of Devon Common Stock which the  aggregate
offering  price of the total  number of shares of Devon  Common Stock so offered
for subscription or purchase  pursuant to such rights or warrants would purchase
at the Market Price of the Devon Common Stock on the Business Day next following
such record date,  which number of  additional  shares  shall be  determined  by
multiplying  such total number of shares by the exercise price of such rights or
warrants  and  dividing  the product so  obtained by such Market  Price of Devon
Common Stock.  Such adjustment shall become effective at the opening of business
on the  Business Day next  following  the record date for the  determination  of
holders of Devon  Common Stock  entitled to receive such rights or warrants.  To
the extent that such rights or warrants expire prior to the Maturity of the DECS
and shares of Devon  Common Stock are not  delivered  pursuant to such rights or
warrants prior to such expiration,  the Exchange Rate shall be readjusted to the
Exchange  Rate  which  would  then be in  effect  had such  adjustments  for the
issuance of such rights or warrants been made upon the basis of delivery of only
the number of shares of Devon Common Stock actually  delivered  pursuant to such
rights or warrants. Each such adjustment shall be made successively.

(i)                       Any  shares  of Devon Common Stock issuable in payment
of a dividend shall be deemed to have been issued immediately prior to the close
of business on the record date for such dividend for purposes of calculating the
number  of  outstanding  shares of Devon Common Stock under paragraph (a)(ii) of
this Section.

(i)                  All  adjustments to the Exchange Rate will be calculated to
the nearest  1/100,000th of a share of Devon Common Stock (or, if there is not a
nearest  1/100,000th  of a share  of  Devon  Common  Stock,  to the  next  lower
1/100,000th  of a share of Devon Common  Stock).  No  adjustment in the Exchange
Rate shall be  required  unless  such  adjustment  would  require an increase or
decrease  of  at  least  one  percent  therein;  provided,   however,  that  any
adjustments  which by reason of this  paragraph  (a)(iv) are not  required to be
made  shall  be  carried  forward  and  taken  into  account  in any  subsequent
adjustment. If an adjustment is made to the Exchange Rate pursuant to paragraphs
(a)(i) or  (a)(ii)  of this  Section,  an  adjustment  shall also be made to the
Maturity  Price as such term is used  throughout the definition of Exchange Rate
set forth in Section 1.01.  The required  adjustment to the Maturity Price shall
be made at Maturity by multiplying the original  Maturity Price by the number or
fraction  determined under  paragraphs  (a)(i) and/or (a)(ii) of this Section by
which the original Exchange Rate was multiplied to adjust such rate. In the case
of a reclassification  of any shares of Devon Common Stock into any common stock
of Devon other than Devon Common Stock,  such common stock shall be deemed to be
shares of Devon Common Stock solely to determine the Maturity Price and to apply
the Exchange Rate at Maturity. Each such adjustment to the Exchange Rate and the
Maturity Price shall be made successively.

(a)                  Other Adjustment  Events.  In the event of (i) any dividend
or  distribution  by Devon to all holders of Devon  Common Stock of evidences of
its  indebtedness  or other assets  (excluding  any  dividends or  distributions
referred to in clause (A) of paragraph (a)(i) of this Section, any common shares
issued  pursuant to a  reclassification  referred to in clause (D) of  paragraph
(a)(i) of this Section and any Ordinary Cash  Dividends  (as defined  below)) or
any issuance by Devon to all holders of Devon Common Stock of rights or warrants
to  subscribe  for or  purchase  any of its  Securities  (other  than  rights or
warrants  referred  to  in  paragraph   (a)(ii)  of  this  Section),   (ii)  any
consolidation or merger of Devon or any surviving entity or subsequent surviving
entity of Devon (a "Devon  Successor") with or into another entity (other than a
merger or  consolidation  in which Devon is the  continuing  corporation  and in
which the Devon  Common  Stock  outstanding  immediately  prior to the merger or
consolidation  is not exchanged for cash,  securities or other property of Devon
or  another  corporation),  (iii) any sale,  transfer,  lease or  conveyance  to
another  corporation  of the  property  of Devon or any  Devon  Successor  as an
entirety  or  substantially  as an  entirety,  (iv) any  statutory  exchange  of
securities of Devon or any Devon Successor with another  corporation (other than
in connection with a merger or acquisition) or (v) any liquidation,  dissolution
or winding up of Devon or any Devon  Successor  (any such event,  an "Adjustment
Event"), the property receivable by Holders of DECS at Maturity shall be subject
to adjustment from time to time as follows:

(1)                  Each Holder of a DECS will receive at Maturity,  in lieu of
or (in the case of an Adjustment Event described in clause (i) of this paragraph
(b)) in addition to, the shares of Devon  Common  Stock that it would  otherwise
receive as  required  by  Section  2.02,  cash in an amount  equal to (A) if the
Maturity  Price is greater than or equal to the  Threshold  Appreciation  Price,
0.84746  multiplied by the Transaction  Value, (B) if the Maturity Price is less
than the Threshold Appreciation Price but is greater than the Initial Price, the
product of (x) the Initial Price divided by the Maturity Price multiplied by (y)
the Transaction Value and (C) if the Maturity Price is less than or equal to the
Initial Price, the Transaction Value.

(1)                  Following an Adjustment  Event, the Maturity Price, as such
term is used in  subparagraph  (b)(1) above and  throughout  the  definition  of
Exchange Rate,  shall be deemed to equal (A) if shares of Devon Common Stock are
outstanding  at Maturity,  subject to clause (B) below,  the  Maturity  Price of
Devon Common Stock, as adjusted  pursuant to the provisions of paragraph (a)(iv)
of this  Section,  plus the  Transaction  Value or (B) if shares of Devon Common
Stock are not outstanding at maturity (or if the Devon Common Stock, as a result
of an Adjustment Event, is not (i) listed on a United States national securities
exchange, (ii) reported on a United States national securities system subject to
last sale reporting or (iii) traded in the over-the-counter  market and reported
on the National Quotation Bureau or similar organization,  and for which bid and
ask  prices  are  not  available  from  at  least  three  nationally  recognized
investment banking firms), the Transaction Value.

(1)                   Notwithstanding   the  foregoing,   with  respect  to  any
securities  received in an Adjustment  Event that (A) are (i) listed on a United
States national securities  exchange,  (ii) reported on a United States national
securities  system  subject  to  last  sale  reporting,   (iii)  traded  in  the
over-the-counter market and reported on the National Quotation Bureau or similar
organization  or (iv) for which bid and ask prices are  available  from at least
three  nationally  recognized  investment  banking  firms and (B) are either (x)
perpetual equity securities or (y) non-perpetual  equity or debt securities with
a stated maturity after the Stated Maturity ("Reported Securities"), the Company
may, at its option,  in lieu of  delivering  the amount of cash  deliverable  in
respect of Reported Securities received in an Adjustment Event, as determined in
accordance  with  subparagraph  (b)(1),   deliver  a  number  of  such  Reported
Securities  with a value equal to such cash amount,  as determined in accordance
with  clause (b) of the  definition  of  Transaction  Value set forth in Section
1.01; provided, however, that (i) if such option is exercised, the Company shall
deliver  Reported  Securities  in  respect of all,  but not less than all,  cash
amounts that would  otherwise be deliverable  in respect of Reported  Securities
received in an Adjustment  Event,  (ii) the Company may not exercise such option
if the Company has elected to deliver  cash in lieu of Devon  Common  Stock,  if
any,  deliverable upon Maturity or if such Reported Securities have not yet been
delivered to the holders entitled thereto following such Adjustment Event or any
record  date with  respect  thereto,  and (iii)  subject to clause  (ii) of this
proviso,  the Company must exercise such option if the Company does not elect to
deliver cash in lieu of Devon Common Stock, if any,  deliverable  upon Maturity.
If the Company elects to deliver Reported Securities, each Holder of a DECS will
be  responsible  for the payment of any and all brokerage and other  transaction
costs upon the sale of such Reported  Securities.  If,  following any Adjustment
Event, any Reported Security ceases to qualify as a Reported Security,  then (x)
the Company may no longer elect to deliver such Reported  Security in lieu of an
equivalent amount of cash and (y)  notwithstanding  clause (b) of the definition
of Transaction Value, the Transaction Value of such Reported Security shall mean
the fair market value of such Reported Security on the date such security ceases
to qualify as a Reported  Security,  as  determined  by a nationally  recognized
investment banking firm retained for this purpose by the Company.

(1)                  The amount of cash and/or the kind and number of securities
into which the DECS shall be  exchangeable  after an  Adjustment  Event shall be
subject to adjustment  following  such  Adjustment  Event in the same manner and
upon the  occurrence of the same type of events as described in  paragraphs  (a)
and (b) of this Section with respect to Devon Common Stock and Devon.

(1)                  For  purposes of the  foregoing,  the term  "Ordinary  Cash
Dividend" means,  with respect to any consecutive  365-day period,  any dividend
with respect to Devon Common Stock paid in cash to the extent that the amount of
such  dividend,  together  with the aggregate  amount of all other  dividends on
Devon Common Stock paid in cash during such 365-day period, does not exceed on a
per-share  basis 10% of the average of the Closing  Prices of Devon Common Stock
over such 365-day period.  For purposes of this  subparagraph  (b)(5),  any cash
dividend  shall  be  deemed  to be paid as of the  record  date  for  such  cash
dividend.

I.1.            Section   Notice of Adjustment and Certain Other Events.

(a)               Whenever  the  Exchange Rate is adjusted as herein provided or
an Adjustment Event occurs, the Company shall:

(i)                    forthwith   compute  the  adjusted   Exchange   Rate  (or
Transaction  Value) in  accordance  with Section 2.04 and prepare a  certificate
signed by an officer of the Company setting forth the adjusted Exchange Rate (or
Transaction  Value), the method of calculation  thereof in reasonable detail and
the facts  requiring such  adjustment  and upon which such  adjustment is based,
which  certificate  shall be  conclusive,  final  and  binding  evidence  of the
correctness  of the  adjustment,  and file such  certificate  forthwith with the
Trustee; and

(i)                  within ten Business  Days  following  the  occurrence of an
event that permits or requires an  adjustment  to the Exchange  Rate pursuant to
Section 2.04(a) (each, a "Dilution  Event") or an Adjustment  Event that permits
or requires a change in the  consideration to be received by Holders pursuant to
Section  2.04(b)  (or,  in  either  case,  if the  Company  is not aware of such
occurrence,  as soon as practicable  after becoming so aware),  provide  written
notice  to the  Trustee  and to the  Holders  of  the  outstanding  DECS  of the
occurrence of such Dilution Event or Adjustment  Event  including a statement in
reasonable  detail  setting  forth the  method by which  any  adjustment  to the
Exchange Rate or change in the  consideration  to be received by Holders of DECS
following  the  Adjustment  Event was  determined  and setting forth the revised
Exchange Rate or consideration,  as the case may be; provided,  however, that in
respect of any adjustment of the Maturity Price,  such notice need only disclose
the factor by which the Maturity  Price is to be multiplied  pursuant to Section
2.04(a)(iv) in order to determine which clause of the definition of the Exchange
Rate will apply at Maturity,  it being  understood  that,  until  Maturity,  the
Exchange Rate itself cannot be determined.

(a)               In case at any time while any of the DECS are outstanding the
Company becomes aware that:

(i)                       Devon   will   declare   a   dividend  (or  any  other
distribution)  on  or in respect of the Devon Common Stock to which Section 2.04
(a)(i)  or (ii) shall apply (other than any cash dividends and distributions, if
any, paid  from  time to time by Devon that constitute Ordinary Cash Dividends);

(i)                       Devon  will  authorize  the issuance to all holders of
Devon  Common Stock of rights or warrants to subscribe for or purchase shares of
Devon Common Stock or of any other subscription rights or warrants;

(i)                       there will occur any conversion or reclassification of
Devon  Common  Stock  (other  than  a  subdivision or combination of outstanding
shares   of   such   Devon   Common  Stock)  or  any  consolidation,  merger  or
reorganization  to  which  Devon  is  a  party  and  for  which  approval of any
stockholders  of  Devon  is  required,  or  the  sale  or  transfer  of  all  or
substantially all of the assets of Devon; or

(i)                       there   will   occur   the  voluntary  or  involuntary
dissolution, liquidation or winding up of Devon;

                 then, if the Company becomes aware of the information described
                 in clause (x) and (y) below  (other  than the  proposed  merger
                 between  Devon  Delaware and  PennzEnergy  Corp.  for the terms
                 disclosed on the date  hereof) a  reasonable  amount of time in
                 advance of the  delivery and filing  requirements  set forth in
                 this  subparagraph (b), the Company shall cause to be delivered
                 to the Trustee and any applicable Paying Agent and filed at the
                 office or agency maintained for the purpose of exchange of DECS
                 at  Maturity in the  Borough of  Manhattan,  in The City of New
                 York by the Trustee (or any applicable Paying Agent), and shall
                 promptly  cause to be  mailed to the  Holders  of DECS at their
                 last addresses as they shall appear upon the registration books
                 of the  Security  Registrar,  at least ten days before the date
                 hereinafter  specified (or the earlier of the dates hereinafter
                 specified,  in the event  that more than one is  specified),  a
                 notice  stating  (x) the date on which a record  is to be taken
                 for the  purpose  of such  dividend,  distribution  or grant of
                 rights or warrants or, if a record is not to be taken, the date
                 as of which  holders  of Devon  Common  Stock of  record  to be
                 entitled to such dividend,  distribution  or grant of rights or
                 warrants are to be determined, or (y) the date, if known by the
                 Company, on which such reclassification, consolidation, merger,
                 sale,  transfer,  dissolution,  liquidation  or  winding  up is
                 expected to become  effective.  Following any Adjustment Event,
                 the  provisions of this  paragraph (b) shall apply with respect
                 to any Reported  Securities  in the same manner as with respect
                 to Devon and the Devon Common Stock.

(a)                  On or prior to the twenty-first  Business Day preceding the
Stated  Maturity  of the DECS,  the  Company  shall  notify the Trustee and will
publish a notice in a daily  newspaper of national  circulation  stating whether
the Company will  deliver,  in  accordance  with Section  2.02,  shares of Devon
Common  Stock or cash  (and/or,  in  accordance  with Section  2.04(b),  cash or
Reported  Securities) upon the mandatory exchange of the principal amount of the
DECS. The Trustee shall notify DTC of the form of  consideration to be delivered
by the  Company.  After the close of business on the  Business  Day  immediately
preceding the Stated  Maturity of the DECS, the Company shall notify the Trustee
in  writing  of the  number of  shares of Devon  Common  Stock  and/or  Reported
Securities, or the amount of cash to be paid per DECS.

I.1.            Section   Taxes.

(a)                  The  Company  will  pay any  and  all  documentary,  stamp,
transfer  or similar  taxes that may be payable in respect of the  transfer  and
delivery  of Devon  Common  Stock  (or  Reported  Securities)  pursuant  hereto;
provided,  however,  that the Company  shall not be required to pay any such tax
which may be payable in respect of any  transfer  involved  in the  delivery  of
Devon Common Stock (or Reported  Securities)  in a name other than that in which
the DECS so exchanged were registered, and no such transfer or delivery shall be
made  unless  and until the  person  requesting  such  transfer  has paid to the
Company the amount of any such tax, or has  established,  to the satisfaction of
the Company, that such tax has been paid.

(a)               The parties hereto hereby agree, and each Holder of a DECS  by
its purchase of a DECS hereby agrees:

(i)               to treat,  for U.S.  federal  income  tax  purposes, each DECS
as a forward purchase  contract to purchase  Devon Common Stock at Maturity
(including as a result of acceleration or otherwise)   (the  "forward   purchase
contract characterization"), under the terms of which contract  (a) at the  time
of issuance of the DECS the Holder deposits irrevocably with the Company a fixed
amount of cash equal to the purchase price of the DECS to assure the fulfillment
of the Holder's purchase obligation described in clause (c) below, which deposit
will  unconditionally  and  irrevocably  be applied at Maturity to satisfy  such
obligation,  (b) until Maturity the Company will be obligated to pay interest on
such  deposit  at a rate  equal to the stated  rate of  interest  on the DECS as
compensation to the Holder for the Company's use of such cash deposit during the
term of the DECS,  and (c) at Maturity  such cash  deposit  unconditionally  and
irrevocably will be applied by the Company in full  satisfaction of the Holder's
obligation under the forward purchase contract,  and the Company will deliver to
the  Holder  the  number of  shares of Devon  Common  Stock  that the  Holder is
entitled to receive at the time  pursuant  to the terms of the DECS  (subject to
the  Company's  right to  deliver  cash in lieu of the  shares  of Devon  Common
Stock);

(i)                       to  treat, consistent with the above characterization,
(x) amounts  paid  to  the Company in respect of the original issue of a DECS as
allocable  in  their  entirety to the amount of the cash deposit attributable to
such DECS, and (y) amounts denominated as interest that are payable with respect
to  the  DECS  as  interest  payable  on  the amount of such deposit, includible
annually  in  the income of the Holder as interest income in accordance with its
method of accounting; and

(i)                       to  file  all U.S. federal, state and local income and
franchise  tax   returns  consistent   with   the  forward   purchase   contract
characterization (unless required otherwise by an applicable taxing authority).

I.1.            Section   Delivery of Securities upon Maturity.

                All Devon Common Stock and Reported  Securities  deliverable  to
Holders  upon the  Maturity  of the DECS  shall be  delivered  to such  Holders,
whenever  practicable,  in such manner (such as by book-entry transfer) so as to
assure  same-day  transfer of such  securities  to Holders and  otherwise in the
manner  customary at such time for delivery of such securities and securities of
the same type.


                                   I ARTICLE
                                   Covenants

I.1.            Section   Shares Free and Clear; No Rights in the Stock.

                With  respect  to the DECS only and for the  benefit of only the
Holders thereof, the Company covenants and warrants that upon exchange of a DECS
at Maturity  pursuant to the  Indenture  and this  Supplemental  Indenture,  the
Holder of a DECS shall  receive  valid title to the Devon Common Stock (and,  in
the event an Adjustment Event has occurred, the Reported Securities, if Reported
Securities  are  delivered)  for which  such  DECS is at such time  exchangeable
pursuant to this Indenture,  free and clear any and all liens,  claims,  charges
and encumbrances  whatsoever,  except to the extent such liens, claims,  charges
and encumbrances as may have been placed on any Devon Energy Common Stock by the
prior  owner  thereof,  prior to the time such  Devon  Energy  Common  Stock was
acquired by the Company, or are caused by the Holders. In addition,  the Company
further  warrants  that any Devon  Common  Stock (and  Reported  Securities)  so
delivered  in  exchange  for  DECS  hereunder  shall  be  free  of any  transfer
restrictions  (other than such as are solely attributable to any Holder's status
as an affiliate of Devon or the issuer of such Reported  Securities).  Except as
provided in Section  2.06(a),  the Company  shall pay all taxes and charges with
respect  to the  delivery  of  Devon  Common  Stock  (and  Reported  Securities)
delivered  in  exchange  for DECS  hereunder.  Until such time,  if any,  as the
Company  shall  deliver  shares of Devon  Common Stock to Holders of the DECS at
Maturity,  the Holders  shall not be entitled to any rights with  respect to the
Devon Common Stock (including,  without limitation, voting rights and the rights
to receive any dividends or other distributions in respect thereof.

I.1.            Section   Discharge of Indenture.

                With  respect  to the DECS only and for the  benefit of only the
Holders  thereof,  Article  Four  of the  Indenture  is  amended  to read in its
entirety as follows:

            (a) If at any time  (i) the  Company  shall  have  delivered  to the
            Trustee for cancellation  all of the DECS theretofore  authenticated
            and  delivered  (other  than  (1) any DECS  which  shall  have  been
            destroyed, lost or stolen and which shall have been replaced or paid
            as provided in Section 306 and (2) DECS for whose  payment money has
            theretofore  been  deposited in trust and  thereafter  repaid to the
            Company  as  provided  in  Section   1003)  or  (ii)  all  DECS  not
            theretofore  delivered  to the Trustee for  cancellation  shall have
            become due and  payable,  and the  Company  shall  deposit  with the
            Trustee in trust the number of shares of Devon  Energy  Common Stock
            (and/or  Reported  Securities)  or the  entire  amount  of  money in
            Dollars sufficient to pay all DECS not theretofore  delivered to the
            Trustee for cancellation,  including  principal and interest due, in
            accordance  with the terms of such DECS,  and if in either  case the
            Company  shall  also  pay or cause  to be paid  all  other  the sums
            payable  hereunder  by the  Company,  then this Second  Supplemental
            Indenture  shall  cease to be of  further  effect  (except as to any
            surviving  rights of  registration  of  transfer or exchange of such
            DECS herein expressly provided for and rights to receive payments of
            principal  of, and  interest on, the DECS with respect to the DECS),
            and  the  Trustee,  on  demand  of  the  Company  accompanied  by an
            Officers'  Certificate and an Opinion of Counsel and at the cost and
            expense  of  the   Company,   shall   execute   proper   instruments
            acknowledging satisfaction of and discharging this Indenture.



                                   I ARTICLE
                                 Miscellaneous

I.1.            Section   Confirmation of Indenture.

                The Indenture,  as supplemented and amended by this Supplemental
Indenture  and all other  indentures  supplemental  thereto,  is in all respects
ratified and confirmed,  and the Indenture,  this Supplemental Indenture and all
indentures  supplemental  thereto shall be read,  taken and construed as one and
the same instrument.

I.1.            Section   Concerning the Trustee.
                The Trustee assumes no duties,  responsibilities  or liabilities
by  reason  of  this  Supplemental  Indenture  other  than as set  forth  in the
Indenture.

                The recitals  contained  herein shall be taken as the statements
of the Company, and the Trustee assumes no responsibility for the correctness of
same,  except for the recital  indicating the Trustee's  approval of the form of
this Second  Supplemental  Indenture.  The Trustee makes no representation as to
the validity of this Second Supplemental Indenture.

                The  Trustee  accepts  the trust  created by the  Indenture,  as
supplemented by this Second  Supplemental  Indenture,  and agrees to perform the
same upon the terms and conditions in the  Indenture,  as  supplemented  by this
Second Supplemental Indenture.

I.1.            Section   Payment of Principal.

                Each reference in the Indenture to the payment by the Company of
the  principal of any Security  (or words of like import)  shall be deemed,  for
purposes of the DECS only,  to mean the  delivery of the Devon Common Stock (or,
at the Company's  option,  the cash  equivalent  thereof) at the time,  rate and
manner set forth herein.



                This  Supplemental  Indenture  may be  executed in any number of
counterparts,  each of which shall be an original;  but such counterparts  shall
together constitute but one and the same instrument.



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

                                              KERR-McGEE CORPORATION

                                              By:________________________
                                              Name:
                                              Title:

[CORPORATE SEAL]


Attest: _______________________
        Name:
        Title:

                                               CITIBANK, N.A.,
                                               as Trustee

                                               By: _______________________
                                               Name:
                                               Title:


Attest: _______________________
        Name:
        Title:


STATE OF OKLAHOMA       )
                        )  SS.:
COUNTY OF OKLAHOMA      )


                On the ____ day of ___________,  1999, before me personally came
___________________,  to me known,  who, being by me duly sworn,  did depose and
say that  she/he  is the  ____________  of  KERR-McGEE  CORPORATION,  one of the
corporations  described in and which  executed the  foregoing  instrument;  that
she/he  knows  the  seal of said  corporation;  that the  seal  affixed  to said
instrument is such  corporate  seal;  that it was so affixed by authority of the
Board of Directors of said corporation, and that she signed her/his name thereto
by like authority.


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


SEAL







STATE OF NEW YORK       )
                        )   SS.:
COUNTY OF NEW YORK      )


                On the ___ day of __________,  1999,  before me personally  came
____________,  to me known, who, being by me duly sworn, did depose and say that
she/he is the _________ of CITIBANK,  N.A., one of the corporations described in
and which executed the foregoing instrument;  that she/he knows the seal of said
corporation;  that the seal affixed to said  instrument is such corporate  seal;
that  it was so  affixed  by  authority  of  the  Board  of  Directors  of  said
corporation, and that she/he signed her/his name thereto by like authority.


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


SEAL



        EXHIBIT A

     THIS  SECURITY IS A GLOBAL  SECURITY  WITHIN THE  MEANING OF THE  INDENTURE
HEREINAFTER  REFERRED TO AND IS  REGISTERED  IN THE NAME OF THE  DEPOSITARY OR A
NOMINEE OF THE DEPOSITARY.  UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART
FOR THE INDIVIDUAL DEBT SECURITIES  REPRESENTED HEREBY, THIS GLOBAL SECURITY MAY
NOT BE  TRANSFERRED  EXCEPT AS A WHOLE BY THE  DEPOSITARY  TO A  NOMINEE  OF THE
DEPOSITARY  OR BY A NOMINEE  OF THE  DEPOSITARY  TO THE  DEPOSITARY  OR  ANOTHER
NOMINEE  OF  THE  DEPOSITARY  OR BY THE  DEPOSITARY  OR ANY  SUCH  NOMINEE  TO A
SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.

     UNLESS THIS  SECURITY IS PRESENTED BY AN AUTHORIZED  REPRESENTATIVE  OF THE
DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE COMPANY OR
ITS AGENT FOR  REGISTRATION OF TRANSFER,  EXCHANGE OR PAYMENT,  AND ANY SECURITY
ISSUED IS  REGISTERED IN THE NAME OF CEDE & CO., OR SUCH OTHER NAME AS REQUESTED
BY AN AUTHORIZED  REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT
HEREON IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE
OR OTHERWISE BY A PERSON IS WRONGFUL SINCE THE REGISTERED  OWNER HEREOF,  CEDE &
CO., HAS AN INTEREST HEREIN.









     This Note is a Global Note within the meaning of the Indenture  hereinafter
referred to and is registered in the name of a Depositary or a nominee  thereof.
This  DECS  may not be  transferred  except  as a whole by the  Depositary  to a
nominee of the Depositary or by a nominee of the Depositary to the Depositary or
another  nominee of the Depositary or by the Depositary or any such nominee to a
successor Depositary or a nominee of such successor Depositary, unless and until
this Note is exchanged whole or in part for DECS in definitive form.

     Unless this certificate is presented by an authorized representative of The
Depository Trust Company, a New York corporation  ("DTC"), to the Company or the
Trustee (each as hereafter defined) for registration of transfer,  exchange,  or
payment,  and any certificate  issued is registered in the name of Cede & Co. or
in such other name as is requested by an authorized  representative  of DTC (and
any  payment is made to Cede & Co. or such other  entity as is  requested  by an
authorized  representative  DTC), ANY TRANSFER,  PLEDGE, OR OTHER USE HEREOF FOR
VALUE OR  OTHERWISE BY OR TO ANY PERSON IS WRONGFUL  inasmuch as the  registered
owner hereof, Cede & Co., has an interest herein.

NO. D-3 CUSIP NO. 492386305
                                                                $43,088,925

                             KERR-McGEE CORPORATION

                               1,298,348 DECS SM
                    (Debt Exchangeable for Common Stock SM)

                   5-1/2% Exchangeable Note Due August 2, 2004

         (Subject to Exchange at Maturity into Shares of Common Stock,
             Par Value $.10 Per Share, of Devon Energy Corporation)

                KERR-McGEE  CORPORATION,  a  Delaware  corporation  (hereinafter
called the "Company",  which term includes any successor  corporation  under the
Indenture  hereinafter referred to), for value received,  hereby promises to pay
to CEDE & CO.  or  registered  assigns,  on August 2, 2004 a number of shares of
Common  Stock,  par value $.10 per share (the "Devon  Common  Stock"),  of Devon
Energy  Corporation  ("Devon") (or, at the Company's option, the cash equivalent
thereof and/or such other consideration as permitted or required by the terms of
the  DECS)  at the  Exchange  Rate  (as  defined  herein),  and to pay  interest
(computed  on the  basis of a  360-day  year of twelve  30-day  months)  on such
principal  amount  from the date of  original  issuance  or from the most recent
Interest Payment Date (as defined below) to which interest has been paid or duly
provided  for,  quarterly  on February 1, May 1, August 1 and November 1 of each
year (each, an "Interest Payment Date" and, collectively,  the "Interest Payment
Dates"),  commencing  November 1, 1999,  at the rate per annum  specified in the
title of this note, until Maturity. The interest so payable, and punctually paid
or duly  provided  for, on any Interest  Payment Date will,  as provided in said
Indenture,  be paid to the  person  in  whose  name  this  DECS  (or the DECS in
exchange or  substitution  for which this DECS was issued) is  registered at the
close of  business on the Regular  Record Date (as defined  below) for  interest
payable  on such  Interest  Payment  Date.  The  "Regular  Record  Date" for any
interest  payment is the close of business on the January 15,  April 15, July 15
and October 15 immediately preceding the relevant Interest Payment Date, whether
or not a Business Day (as defined  below),  provided  that  interest  payable at
Maturity  shall be  payable  to the  person  to whom the Devon  Common  Stock is
deliverable.  In any case  where  such  Interest  Payment  Date  shall  not be a
Business Day, then  (notwithstanding  any other  provision of said  Indenture or
this DECS) payment of such  interest  need not be made on such date,  but may be
made on the next  succeeding  Business  Day with the same force and effect as if
made on such Interest Payment Date, and, if such payment is so made, no interest
shall accrue for the period from and after such Interest  Payment Date. Any such
interest not so punctually paid or duly provided for shall forthwith cease to be
payable to the registered Holder on such Regular Record Date, and may be paid to
the person in whose name this DECS (or the DECS in exchange or substitution  for
which this DECS was issued) is  registered  at the close of business on a record
date for the  payment of such  interest to be fixed by the Trustee for the DECS,
notice  whereof  shall be given to  Holders  of the DECS not less  than ten days
prior to such record date, or may be paid at any time in any other lawful manner
not inconsistent  with the requirements of any securities  exchange on which the
DECS may be listed and not deemed  impracticable  by the Trustee,  and upon such
notice as may be required by such exchange.

                At  Maturity,   the  principal  amount  of  this  DECS  will  be
mandatorily  exchanged  into a number of shares of Devon  Common  Stock,  at the
Exchange  Rate.  The "Exchange  Rate" is equal to (a) if the Maturity  Price (as
defined  below)  is  greater  than  or  equal  to  $39.16125   (the   "Threshold
Appreciation Price"),  0.84746 shares of Devon Common Stock per DECS, (b) if the
Maturity Price is less than the Threshold Appreciation Price but is greater than
$33.1875 (the "Initial Price"), a fraction equal to the Initial Price divided by
the Maturity Price of one share of Devon Common Stock per DECS (such  fractional
share being calculated to the nearest 1/100,000th of a share or, if there is not
a nearest 1/100,000th of a share, to the next higher 1/100,000th of a share) and
(c) if the Maturity Price is less than or equal to the Initial Price,  one share
of Devon  Common Stock per DECS.  Any shares of Devon Common Stock  delivered by
the Company to the Holders of the DECS that are not affiliated  with Devon shall
be  free  of any  transfer  restrictions  except  to  the  extent  any  transfer
restrictions  are caused by the Holders of DECS, and the holders of DECS will be
responsible  for the payment of any and all brokerage  costs upon the subsequent
sale of such shares.  No fractional  shares of Devon Common Stock will be issued
at Maturity as provided in the Indenture.

                 The Company may at its option,  in lieu of delivering shares of
Devon Common Stock,  deliver cash in an amount equal to the value of such number
of  shares  of Devon  Common  Stock at the  Maturity  Price as  provided  in the
Indenture;  provided,  however,  that if such option is  exercised,  the Company
shall  deliver cash with respect to all, but not less than all, of the shares of
Devon Common Stock that would otherwise be deliverable.

                 Notwithstanding  the  foregoing,  (i) in the  case  of  certain
dilution events, the Exchange Rate will be subject to adjustment and (ii) in the
case of certain adjustment events, the consideration received by Holders of DECS
at Maturity will be shares of Devon Common Stock,  other securities and/or cash,
each as provided in the Indenture.

                The "Maturity Price" is defined as the average Closing Price per
share of Devon Common Stock on the 20 Trading Days immediately prior to (but not
including) the date of Maturity or, under certain  circumstances  as provided in
the  Indenture,  the market value per share of Devon Common Stock as of the date
of Maturity as  determined  by a nationally  recognized  independent  investment
banking firm  retained for this purpose by the Company.  The "Closing  Price" of
any security on any date of determination  means (i) the closing sale price (or,
if no closing  sale price is  reported,  the last  reported  sale price) of such
security (regular way) on the New York Stock Exchange (the "NYSE") on such date,
(ii) if such security is not listed for trading on the NYSE on any such date, as
reported  in  the  composite   transactions  for  the  principal  United  States
securities exchange on which such security is so listed,  (iii) if such security
is not so listed on a United States national or regional securities exchange, as
reported by the Nasdaq Stock  Market,  (iv) if such security is not so reported,
the  last  quoted bid price for such security in the over-the-counter  market as
reported by the National Quotation Bureau or similar organization or (v) if such
security is not so quoted,  the average of the mid-point of the last bid and ask
prices  for such  security  from each of at least  three  nationally  recognized
investment  banking firms  selected for this purpose by the Company.  A "Trading
Day" is defined as a Business  Day on which the  security  the Closing  Price of
which is being  determined  (i) is not suspended from trading on any national or
regional securities  exchange or association or  over-the-counter  market at the
close of business  and (ii) has traded at least once on the national or regional
securities  exchange  or  association  or  over-the-counter  market  that is the
primary  market for the trading of such  security.  "Business Day" means any day
that  is  not a  Saturday,  a  Sunday  or a  day  on  which  the  NYSE,  banking
institutions or trust companies in The City of New York, New York are authorized
or obligated by law or executive order to close.

                Interest  on this DECS will be  payable,  and  delivery of Devon
Common Stock (or, at the  Company's  option,  the cash  equivalent of such Devon
Common Stock and/or such other consideration as permitted or required herein and
in the Indenture) in exchange for the principal  amount of this DECS at Maturity
will be made upon surrender of this DECS, at the office or agency of the Company
maintained  for that purpose in the City of New York,  New York,  and payment of
interest on (and, if the Company elects not to deliver Devon Common Stock and/or
other Reported Securities upon exchange at Maturity, the cash equivalent thereof
payable  upon  exchange for the  principal  amount of) this DECS will be made in
such coin or currency of the United  States of America as at the time of payment
is legal tender for payment of public and private debts; provided, however, that
at the option of the Company  payment of interest may be made by check mailed to
the persons in whose names the DECS are  registered  on the Regular  Record Date
with respect to the relevant Interest Payment Date. Initially, such office shall
be the principal  corporate trust office of the Trustee in New York City,  which
is located at 111 Wall Street, 5th Floor, New York, New York 10005.

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

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

                 "DECS" and "Debt  Exchangeable  for Common  Stock" are  service
marks of Salomon Smith Barney Inc.


                IN WITNESS WHEREOF, the Company has caused this instrument to be
duly executed under its corporate seal by the manual or facsimile  signatures of
its officers thereunto duly authorized.

                                                KERR-McGEE CORPORATION

                                                By:________________________


                                                Attest:

                                                By:________________________


Dated: August 9, 1999

        [CORPORATE SEAL]

TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This is one of the series of Debt Securities  issued under the within  mentioned
Indenture.

Date of Authentication:

CITIBANK, N.A.,
  as Trustee


By:______________________
   Authorized Signatory




                               [Reverse of DECS]

                             KERR-McGEE CORPORATION

                  5-1/2% Exchangeable Note Due August 2, 2004

         (Subject to Exchange at Maturity into Shares of Common Stock,
             Par Value $.10 Per Share, of Devon Energy Corporation)


                This  DECS is one of a duly  authorized  issue  of  notes of the
Company of the series  designated 5-1/2% Exchangeable  Notes due August 2, 2004,
(herein  called  the  "DECS"),   limited  in  aggregate   principal   amount  to
$330,348,375  issued and to be issued under an  Indenture  dated as of August 1,
1982,  between the Company and  Citibank,  N.A., as Trustee  (herein  called the
"Trustee",  which term includes any successor  trustee under the Indenture),  as
supplemented by the First Supplemental  Indenture dated a of May 7, 1996 and the
Second Supplemental  Indenture thereto dated August 2, 1999 (said Indenture,  as
so supplemented, herein and as it may be further supplemented from time to time,
called the  "Indenture"),  to which  Indenture and all  indentures  supplemental
thereto  reference  is hereby made for a  statement  of the  respective  rights,
limitations of rights,  duties,  obligations  and  immunities  thereunder of the
Company,  the Trustee  and the Holders of the DECS,  and of the terms upon which
the DECS are, and are to be, authenticated and delivered.

                The DECS may not be redeemed  prior to Stated  Maturity  and are
not entitled to the benefit of any sinking fund.

                The provisions  contained in the Indenture for defeasance of the
Company's  obligations  and  discharge  of  the  entire  principal  of  all  the
Securities of any series upon compliance by the Company with certain  conditions
set forth therein will not be applicable to the DECS.  Certain other  provisions
contained in the  Indenture  pertaining  to  satisfaction  and  discharge of the
Indenture  upon deposit of funds with the Trustee shall apply to the DECS in the
manner set forth in the Second Supplemental Indenture referred to above.

                If an Event of Default with  respect to the DECS,  as defined in
the Indenture,  shall occur and be continuing,  the principal of all DECS may be
declared due and payable and therefore will result in the mandatory  exchange of
the  principal  amount  thereof for Devon  Common  Stock (or,  at the  Company's
option,  cash and/or such other  consideration as permitted or required herein),
all in the manner and with the effect provided in the Indenture.

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

                 Holders of DECS may not enforce  their  rights  pursuant to the
Indenture or the DECS except as provided in the Indenture.  No reference  herein
to the Indenture  and no provision of this DECS or of the Indenture  shall alter
or impair the obligation of the Company, which is absolute and unconditional, to
pay the  principal of and interest on this DECS at the times,  place,  and rate,
and in the manner herein prescribed.

                As provided in the Indenture and subject to certain  limitations
therein set forth,  this DECS is  transferable  on the Security  Register of the
Company,  upon surrender of this DECS for registration of transfer at the office
of the Company maintained for such purpose in the Borough of Manhattan, the City
and State of New York, duly endorsed,  or accompanied by a written instrument of
transfer in form  satisfactory  to the Company and the Security  Registrar  duly
executed,  by the Holder  hereof or such Holder's attorney  duly  authorized  in
writing,  and thereupon one or more new DECS of like aggregate  principal amount
of such  denominations  as are authorized for DECS and of a like Stated Maturity
and with like terms and conditions  will be issued in the name of the designated
transferee or transferees.

                 The DECS are issuable in registered  form without  coupons,  in
denominations  of $1,000 and any amounts in excess  thereof.  As provided in the
Indenture  and  subject  to certain  limitations  therein  set  forth,  DECS are
exchangeable  for other DECS of like  aggregate  principal  amount and of a like
Stated Maturity and with like terms and  conditions,  as requested by the Holder
surrendering the same.

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

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

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

                 THIS DECS SHALL FOR ALL PURPOSES BE GOVERNED BY, AND  CONSTRUED
IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

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

                                 ABBREVIATIONS

                The following abbreviations, when used in the inscription on the
face of the within  DECS,  shall be construed as though they were written out in
full according to applicable laws or regulations.


TEN COM - as tenants in common -
TEN ENT - as tenants by the entireties
JT TEN - as joint tenants with right of survivorship and not as tenants in
         common

UNIF GIFT MIN ACT
___________Custodian___________
(Cust)                  (Minor)
Under Uniform Gifts to Minors Act
_________________________________
   (State)

                Additional abbreviations may also be used though
                             not in the above list
                             ----------------------

          FOR VALUE RECEIVED the undersigned hereby sells, assigns and
                                 transfers unto


PLEASE INSERT SOCIAL SECURITY
OR OTHER IDENTIFYING NUMBER OF ASSIGNEE      _______________________






               (Name and Address of Assignee, including zip code,
                        must be printed or typewritten)



the within DECS, and all rights thereunder,  hereby irrevocably constituting and
appointing Attorney to transfer said DECS on the books of the Company, with full
power of substitution in the premises.

        Dated:
                                             Signature

                 NOTICE:  The signature to this  assignment must correspond with
the name as it  appears  upon the face of the within  DECS in every  particular,
without alteration or enlargement or any change whatever.





                                                                    EXHIBIT 12

<TABLE>

                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
              COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES(1)

<CAPTION>


(Millions of dollars)                                     1999         1998         1997         1996          1995
                                                          ----         ----         ----         ----          ----
<S>                                                       <C>         <C>           <C>          <C>
Income (loss) from
     continuing operations                                $146        $(345)        $351         $358          $110

Add -
     Provision (benefit) for
         income taxes                                      111         (175)         184          225           (42)
     Interest expense                                      190          157          141          145           193
     Rental expense representative of interest factor       14           12           13           10            18
                                                          ----        -----         ----         ----          ----
              Earnings                                    $461        $(351)        $689         $738          $279
                                                          ====        =====         ====         ====          ====

Fixed Charges -
     Interest expense                                     $190         $157         $141         $145          $193
     Rental expense representative of interest factor       14           12           13           10            18
     Interest capitalized                                    9           28           24           25            21
                                                          ----        -----         ----         ----          ----
              Total fixed charges                         $213        $ 197         $178         $180          $232
                                                          ====        =====         ====         ====          ====

Ratio of earnings to fixed
         charges                                           2.2            - (1)      3.9          4.1           1.2
                                                          ====        =====         ====         ====          ====

</TABLE>

(1)Earnings were inadequate to cover fixed charges by $548 million in 1998.




  FINANCIAL REVIEW            Kerr-McGee Corporation

    Contents
    Management's Discussion and Analysis.......................14
      Kerr-McGee/Oryx Merger...................................14
      Operating Environment and Outlook........................14
      Results of Consolidated Operations.......................15
      Segment Operations.......................................17
      Financial Condition......................................18
      Market Risks.............................................19
      Environmental Matters....................................20
      New Accounting Standards.................................21
      Year 2000 Readiness......................................22
    Cautionary Statement Concerning
      Forward-Looking Statements...............................22
    Responsibility for Financial Reporting.....................22
    Report of Independent Public Accountants...................23
    Consolidated Statement of Income...........................24
    Consolidated Statement of Comprehensive Income
      and Stockholders' Equity.................................25
    Consolidated Balance Sheet.................................26
    Consolidated Statement of Cash Flows.......................27
    Notes to Financial Statements..............................28
      1.  The Company and Significant Accounting Policies......28
      2.  Cash Flow Information................................30
      3.  Inventories..........................................30
      4.  Deferred Charges.....................................30
      5.  Investments - Equity Affiliates......................31
      6.  Investments - Other Assets...........................31
      7.  Property, Plant and Equipment........................31
      8.  Debt.................................................32
      9.  Accrued Liabilities..................................33
     10.  Common Stock.........................................33
     11.  Contingencies........................................34
     12.  Income Taxes.........................................35
     13.  Taxes, Other than Income Taxes.......................36
     14.  Deferred Credits and Reserves - Other................36
     15.  Discontinued Operations..............................36
     16.  Other Income.........................................37
     17.  Impairment of Long-Lived Assets and Long-Lived
            Assets to Be Disposed Of...........................37
     18.  Financial Instruments and Hedging Activities.........38
     19.  Employee Benefit Plans...............................40
     20.  Employee Stock Ownership Plan........................42
     21.  Employee Stock Option Plans..........................43
     22.  Merger and Restructuring Charges.....................44
     23.  Merger with Oryx Energy Company......................45
     24.  Reporting by Business Segments
            and Geographic Locations...........................46
     25.  Subsequent Events....................................48
     26.  Costs Incurred in Crude Oil and
            Natural Gas Activities.............................48
     27.  Results of Operations from Crude Oil
            and Natural Gas Activities.........................49
     28.  Capitalized Costs of Crude Oil and
            Natural Gas Activities.............................50
     29.  Crude Oil, Condensate, Natural Gas Liquids
            and Natural Gas Net Reserves (Unaudited)...........51
     30.  Standardized Measure of and Reconciliation
            of Changes in Discounted Future
            Net Cash Flows (Unaudited).........................52
     31.  Quarterly Financial Information (Unaudited)..........53
    Six-Year Financial Summary.................................54
    Six-Year Operating Summary.................................55


                                Financial Review

Management's Discussion and Analysis

Kerr-McGee/Oryx Merger

     On February 26, 1999, the merger between Kerr-McGee and Oryx was completed.
Oryx was a worldwide independent oil and gas exploration and production company.
Its operations have been merged into and reported with Kerr-McGee's  exploration
and  production  segment.  All  references to the "company"  refer to the merged
entity.
     Under the merger agreement, each outstanding share of Oryx common stock was
effectively  converted  into the right to receive  0.369  shares of newly issued
Kerr-McGee  common stock. The merger qualified as a tax-free  exchange to Oryx's
shareholders and has been accounted for as a pooling of interests.  Accordingly,
results of operations,  financial  position and cash flows for all prior periods
have been restated to reflect the combined  company as though it had always been
     in  existence.  The  merger  with  Oryx  was  the  largest  transaction  in
Kerr-McGee's  history.  The company has  successfully  incorporated  the assets,
staffs and  operations of the two  companies  and met the  projected  annualized
level of $100 million of pretax synergy savings.

Operating Environment and Outlook

     Based on proved  reserves at December 31,  1999,  the company is one of the
largest  independent,  nonintegrated  oil and  gas  exploration  and  production
companies based in the United States.
     In the  first  two  months  of  2000,  oil  prices  are  in the  $27 to $30
per-barrel range, the highest level in a decade.  Oil prices have risen steadily
from the spring of 1999 when OPEC took steps to reduce supplies. OPEC's actions,
combined  with higher  consumption  due to a robust  economy,  have  resulted in
historically low levels of crude oil  inventories.  OPEC is scheduled to meet in
late March 2000,  and many  experts  forecast  that these  producers  will boost
production  in order to prevent  product  shortages  which will  result in lower
prices.  Management  recognizes  these risks to  commodity  pricing and believes
prices  will  average  between  $22 and $25 per barrel in 2000.
     In early 2000, natural gas prices are in the $2.50 to $2.80 per million BTU
range, and those levels continue in the near-term  futures markets.  Natural gas
consumption  in  the  U.S.  has  continued  to  grow,   currently   representing
approximately  25% of the  nation's  fuel  needs.  In 1998  and  1999,  the U.S.
experienced  a downturn in  drilling  in the shallow  Gulf of Mexico and onshore
United States.  The company and others have made significant  discoveries in the
deepwater Gulf of Mexico;  however,  these projects  require long startup times.
The increasing need for this environmentally friendly fuel for power generation,
coupled with slow supply development, should contribute to strengthening prices.
Management  believes  prices are stable at their current levels and may increase
when the market recognizes more of the risks associated with increasing  natural
gas supply.
     On February 14, 2000, the company reached agreements  (subject to customary
conditions and  governmental  approvals)  with Kemira Oyj of Finland to purchase
its pigment operations in Savannah,  Georgia,  and Botlek, the Netherlands.  The
two  plants  have  combined  capacity  of 201,000  tonnes  per year,  which will
increase Kerr-McGee's total equity pigment capacity by 60% to 535,000 tonnes per
year.  After the transaction is completed,  the company will rank as the world's
third-largest  producer  and  marketer  of  pigment  with about 16% of the world
market.  During 1998, the company  introduced a new universal  grade of pigment,
which currently  represents nearly 30% of the company's U.S. pigment production.
A new  grade  of  pigment  for  the  industrial-coatings  market  will  go  into
commercial  production  in the  first  half of 2000.  Management  believes  that
pigment  consumption  will increase by 2.5% to 3% annually  during the next five
years.  The  company is  undertaking  cost-reduction  programs  at its  non-U.S.
pigment facilities similar to a program that was implemented in 1999 at the U.S.
plant where significant cost reductions have been achieved.

Results of Consolidated Operations


     Net income (loss) and per-share  amounts for each of the three years in the
period ended December 31, 1999, were as follows:

(Millions of dollars, except per-share amounts)        1999    1998    1997
- -----------------------------------------------        ----    ----    ----
Net income (loss)                                      $142    $(68)   $382
Income (loss) from continuing operations
  excluding special items                               296     (24)    343
Net income (loss) per share -
  Net income (loss) -
      Basic                                            1.64    (.78)   4.40
      Diluted                                          1.64    (.78)   4.38
  Income (loss) from continuing operations
    excluding special items -
      Basic                                            3.42    (.28)   3.95
      Diluted                                          3.42    (.28)   3.93

     Net income  (loss) was impacted by a number of special items in each of the
years.  In 1999,  special items were both  operating and  nonoperating  and were
associated  principally with the Oryx merger and transition and with pending and
settled  litigation  matters.  The  1998  special  items  related  primarily  to
impairment  write-downs  reflecting  the then current market value of certain of
the  company's  oil and gas producing  fields and certain  chemical  facilities.
Other 1998 special items were principally nonoperating and reduced net income by
$22 million. In 1997, special items were principally  nonoperating and increased
net income by $8 million.  These special items affect comparability  between the
periods  and are  shown on an  after-tax  basis in the  following  table,  which
reconciles income (loss) from continuing  operations  excluding special items to
net income (loss):

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Income (loss) from continuing
  operations excluding special items                   $296    $(24)   $343
                                                       ----    ----    ----

Special items, net of taxes -
  Asset impairment                                       --    (299)     --
  Merger costs                                         (116)     --      --
  Equity affiliate's full-cost
    ceiling write-down                                   --     (27)     --
  Net provision for environmental
    remediation and restoration of
    inactive sites                                       --     (26)    (13)
  Restructuring                                          (1)    (25)     (1)
  Pending/settled litigation                            (20)     --      (1)
  Transition costs                                      (14)     --      --
  Settlement of prior years' income taxes                 1      41      --
  Settlements with insurance carriers                    --       8       8
  Effect of U.K. tax-rate change                         --       8      --
  Gains on the sales of equity securities                --      --      12
  Other, net                                             --      (1)      3
                                                       ----    ----    ----
    Total                                              (150)   (321)      8
                                                       ----    ----    ----

Discontinued operations, net of taxes                    --     277      33
Extraordinary charge, net of taxes                       --      --      (2)
Change in accounting principle, net of taxes             (4)     --      --
                                                       ----    ----    ----
Net income (loss)                                      $142    $(68)   $382
                                                       ====    ====    ====

     Effective  January 1, 1999, the company adopted Statement of Position (SOP)
No.  98-5,  "Reporting  on the Costs of Start-Up  Activities."  The SOP requires
costs of start-up  activities to be expensed as incurred.  Unamortized  start-up
costs at the  beginning of 1999 were  required to be  recognized as a cumulative
effect of a change in  accounting  principle,  which  decreased  1999  after-tax
income by $4 million.
     The company  sold its coal  operations  in 1998,  resulting in an after-tax
gain of $257 million.  All amounts related to coal are shown in the Consolidated
Statement of Income as discontinued operations.
     In 1997, the company recognized an extraordinary loss of $2 million (net of
$1 million of income  taxes) from the  write-off of  unamortized  debt  issuance
costs.  These costs related to a $500 million credit  facility that was replaced
with a five-year, $500 million revolving credit agreement.
     Income  from  continuing   operations  excluding  special  items  for  1999
increased $320 million from 1998.  This  primarily  resulted from a $343 million
increase in exploration  and production  after-tax  operating  profit  excluding
special  items,  which was  partially  offset by a $29  million  increase in net
interest expense.  In 1998, income (loss) from continuing  operations  excluding
special items declined $367 million from the prior year, due primarily to a $368
million  decline  in  exploration  and  production  after-tax  operating  profit
excluding special items, which was partially offset by a $20 million increase in
chemical  results.
     Sales from continuing operations were $2.7 billion in 1999, $2.2 billion in
1998 and $2.6  billion in 1997.  Sales for 1999 were  higher than in 1998 due to
higher  average  sales  prices for oil and natural  gas (37% and 11%  increases,
respectively),  a 16%  increase in oil volumes  sold and an increase in titanium
dioxide  pigment sales volumes (mainly due to a full year of production from the
company's  European  pigment  operations,  compared  to nine  months  in  1998),
partially  offset by lower  electrolytic  and forest  products sales volumes and
lower  European  pigment  sales  prices.  Sales in 1998  were  lower  than  1997
primarily  due to declines in 1998 average sales prices for oil and natural gas,
of 32% and 13%,  respectively.  In addition,  natural gas volume  decreases were
partially  offset by increased sales volumes and prices for pigment.  The volume
decreases  in  natural  gas sales  were  primarily  the result of damages to and
repair times for pipeline  systems,  hurricane  downtimes and normal  production
declines. Volume increases in pigment sales relate to the March 1998 purchase of
the European  pigment  operations  and the expansion of the pigment  facility in
Hamilton, Mississippi.
     Costs and operating expenses totaled $1.1 billion in both 1999 and 1998 and
$1 billion in 1997.  The 1998 amount was higher than the prior year  principally
due to costs of the acquired  European  pigment  operations and higher  per-unit
costs at the U.S.  pigment and synthetic rutile  facilities.  This was partially
offset by the absence of costs of natural gas  purchased  for resale.
     Following are general and administrative expenses for 1999, 1998 and 1997:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
General and administrative expenses
  excluding special items                              $186    $204    $194
                                                       ----    ----    ----
Special items -
  Net provision for environmental
    remediation and restoration of
    inactive sites                                       --      41      20
  Restructuring                                          --      36       2
  Pending/settled litigation                             30      --       2
  Transition costs associated with
    the Oryx merger                                      22      --      --
  Other, net                                             --      (3)      3
                                                       ----    ----    ----
    Total                                                52      74      27
                                                       ----    ----    ----
General and administrative expenses                    $238    $278    $221
                                                       ====    ====    ====

     The decrease in 1999 general and administrative  expense compared with 1998
resulted  from the synergies  realized  through the merger,  principally  by the
exploration and production  segment.  The estimated  general and  administrative
synergies of approximately  $35 million were partially offset by slightly higher
chemical  costs and  higher  corporate  charges  primarily  due to higher  costs
associated with improved  employee  benefit plans.  The provision for pending or
settled litigation is principally  related to facilities or properties no longer
operated or owned by the company.  Transition  costs were those  associated with
ongoing business during the time of the merger, which will not re-occur in 2000.
The increase in 1998 over 1997  general and  administrative  expenses  excluding
special items primarily  resulted from additional costs related to the company's
European pigment  operations.  Net provisions for environmental  remediation and
restoration  of  inactive  sites  primarily  represented  additional  provisions
established  for  the  removal  of  low-level  radioactive  materials  from  the
company's  inactive  facility  and  offsite  areas  in West  Chicago,  Illinois.
Restructuring charges were for a 1998 voluntary severance program for the former
Oryx U.S. operations, a work process review and organizational  restructuring of
several  groups,  the  1996-1997  relocation  of  part  of the  exploration  and
production unit to Houston, Texas, and severance associated with the divestiture
program  and the merger of  certain  of the  company's  North  American  onshore
properties into Devon Energy  Corporation  (Devon) effective  December 31, 1996.
     Asset  impairments  totaled  $446  million  in 1998 (see Note 17).  Of this
amount,  $389 million were for  write-downs  associated with certain oil and gas
fields located in the North Sea, China and United  States.  Asset  impairment of
$57 million was also  recognized  for certain  chemical  facilities in Idaho and
Alabama.  The  impairments  were  recorded  because  these assets were no longer
expected to recover their net book values through future cash flows.
     Exploration  costs for 1999, 1998 and 1997 were $140 million,  $215 million
and $139  million,  respectively.  The decrease for 1999 resulted from lower dry
hole costs principally in the Gulf of Mexico,  Kazakhstan and China, lower costs
of  geophysical  projects  primarily in the United States onshore area and lower
exploration  district expense in the United States, the North Sea and China. The
primary  reasons for the 1998  increase over the prior year were higher dry hole
costs in the Gulf of Mexico,  Kazakhstan,   Thailand and onshore  United States,
higher  undeveloped  leasehold  amortization  in  the  Gulf  of  Mexico,  higher
geophysical  expenses  related to the Gulf of Mexico and higher district expense
in China,  the North Sea and Gulf of Mexico,  partially offset by lower dry hole
costs in China.
     Taxes,  other than income taxes,  were $85 million in 1999,  $53 million in
1998 and $103 million in 1997.  The 1999 and 1998  variances from the prior year
were both due principally to severance  taxes, a direct result of changes in oil
and gas prices.
     Merger costs  totaling  $163 million were  recognized in 1999 and represent
costs incurred in connection with the Oryx merger,  which have no future benefit
to  the  combined  operations.  The  major  items  included  are  severance  and
associated benefit plan adjustments; lease cancellation costs; transfer fees for
seismic  data;  investment  bankers,  lawyers  and  accountants  fees;  and  the
write-off  of  duplicate  computer  systems  and  fixtures  (see  Note 22).
     Interest  and debt expense  totaled  $190 million in 1999,  $157 million in
1998 and $141 million in 1997. The 1999 increase resulted from lower capitalized
interest and higher  borrowings  related to the costs of the merger.  Borrowings
increased in 1998 due to the  acquisitions of European  chemical  operations and
North Sea oil and gas assets,  partially offset by the proceeds from the sale of
the coal assets.
     Other income was as follows for each of the years in the three-year  period
ended December 31, 1999:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Other income excluding special items                   $ 39    $ 36    $ 43
                                                       ----    ----    ----
Special items -
  Interest income from settlement
    of prior years' income taxes                          1      19      --
  Settlements with insurance carriers                    --      12      12
  Equity affiliate's full-cost ceiling
    write-down                                           --     (27)     --
  Gains on the sale of nonstrategic
    oil and gas properties                               --       2       2
  Gains on sales of equity securities                    --      --      18
  Other, net                                             --       1       7
                                                       ----    ----    ----
    Total                                                 1       7      39
                                                       ----    ----    ----
Other income                                           $ 40    $ 43    $ 82
                                                       ====    ====    ====

     The increase in 1999 other income  excluding  special  items  compared with
1998 was due primarily to higher foreign  currency  gains,  partially  offset by
lower interest income. Lower equity earnings from unconsolidated affiliates were
the primary reason for the decline in 1998 other income excluding special items,
compared with the prior year.  Equity earnings from the company's  investment in
Devon were  impacted by lower oil and gas prices and  decreased  $14 million for
1998 compared with 1997.

Segment Operations

     Operating  profit (loss) from each of the company's  segments is summarized
in the following table:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Operating profit excluding special items -
  Exploration and production                           $562   $  62    $597
                                                       ----   -----    ----
  Chemicals -
    Pigment                                             113      89      49
    Other                                                15      26      35
                                                       ----   -----    ----
      Total Chemicals                                   128     115      84
                                                       ----   -----    ----
        Total                                           690     177     681
Special items                                           (21)   (482)     (5)
                                                       ----   -----    ----
Operating profit (loss)                                $669   $(305)   $676
                                                       ====   =====    ====

Exploration and Production

     Exploration and production  sales,  operating  profit (loss) and production
and sales statistics are shown in the following table:

(Millions of dollars, except per-unit amounts)         1999    1998    1997
- ----------------------------------------------       ------  ------  ------
Sales                                                $1,770  $1,267  $1,845
                                                     ======  ======  ======

Operating profit excluding special items             $  562  $   62  $  597
Special items                                           (20)   (423)     (2)
                                                     ------  ------  ------
Operating profit (loss)                              $  542  $ (361) $  595
                                                     ======  ======  ======

Net crude oil and condensate produced
 (thousands of barrels per day)                         197     172     172
Average price of crude oil sold
 (per barrel)                                        $17.15  $12.52  $18.32
Natural gas sold (MMCF per day)                         580     584     685
Average price of natural gas sold
 (per MCF)                                           $ 2.35  $ 2.12  $ 2.43

     Special  items  in 1999  are  transition  costs  associated  with  the work
necessary to accomplish  the Oryx merger.  Asset  impairment for certain oil and
gas fields in the North Sea, China and the United States totaled $389 million in
1998  and  is  reflected  in  special  items.   Also  in  1998,  a  $34  million
restructuring  reserve is shown as a special  item.  This  amount  was  provided
primarily  for a voluntary  severance  program for employees of former Oryx U.S.
operations.  Special items in 1997 consisted  primarily of additional  costs for
the segment's restructuring and relocation to Houston, Texas.

Chemicals
     Chemical sales and operating profit are shown in the following table:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Sales -
  Pigment                                              $700    $640    $470
  Other                                                 226     293     290
                                                       ----    ----    ----
Total                                                  $926    $933    $760
                                                       ====    ====    ====

Operating profit excluding special items -
  Pigment                                              $113    $ 89    $ 49
  Other                                                  15      26      35
                                                       ----    ----    ----
                                                        128     115      84
Special items -
  Pigment                                                --     (33)     --
  Other                                                  (1)    (26)     (3)
                                                       ----    ----    ----
Operating profit                                       $127    $ 56    $ 81
                                                       ====    ====    ====

     Severance  charges of $1 million  and $2 million  were  recorded as special
items in 1999 and 1998, respectively.  Also included in 1998 special charges are
asset  impairments  totaling $57 million for noncore  chemical assets in Alabama
and Idaho.  Special  items in 1997 were  primarily for the write-off of obsolete
equipment.

     Pigment - The  increase in 1999  titanium  dioxide  pigment  sales from the
prior year was due  principally to increased  volumes in Europe as a result of a
full year of sales after the company's  acquisition  at the end of March 1998 of
the European  pigment  operations,  partially  offset by lower European  pigment
prices.  Operating profit  excluding  special items increased in 1999 due to the
higher sales in Europe and lower U.S. per-unit production costs.  Pigment prices
increased throughout 1998. This improvement in pricing, along with the company's
acquisition of the European pigment operations and a full year's production from
a 27, 000 tonne-per-year expansion of the company's Hamilton, Mississippi, plant
were the primary reasons for the $170 million increase in pigment sales in 1998.
These sales increases were partially offset by higher per-unit  production costs
resulting  in a $ 40 million  increase in  operating  profit  excluding  special
items.
     Other - Other  chemical  sales  were  lower in 1999 as  compared  with 1998
principally due to lower forest products sales volumes, the company's withdrawal
from the ammonium perchlorate business in 1998 and lower vanadium sales volumes.
The decline in sales was the major  reason for lower  operating  profit in 1999.
The decline in 1998  operating  profit  from 1997  resulted  primarily  from the
withdrawal  from the  ammonium  perchlorate  business in 1998 and higher  sodium
chlorate per-unit production costs.

Financial Condition

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Current ratio                                           1.4     0.8     1.0
Total debt                                           $2,525  $2,250  $1,766
Total debt less cash                                  2,258   2,129   1,574
Stockholders' equity                                 $1,492  $1,346  $1,558
Total debt less cash to total capitalization             60%     61%     50%
Floating-rate debt to total debt                        38       33      15

Cash Flow
     Net  cash  provided  by  operating  activities  was $713  million  in 1999,
compared  with $385  million in 1998 and $1.1  billion in 1997.  The  rebound in
crude oil prices and the resulting impact on net income were the primary reasons
for the 1999 increase in net cash provided by operating activities and more than
offset the reduction in cash from the costs of the merger.
     Cash used in 1999  investing  activities  was primarily for $543 million of
capital  expenditures  and $33 million of unsuccessful  exploratory  well costs.
Additionally,  the company invested in several oil and gas property acquisitions
totaling  $78  million,  including  the buy-out of the  limited  partners of Sun
Energy  Partners,  L.P. Net other investing  activities used $8 million of cash.
     Dividends increased to $138 million in 1999 with the additional  Kerr-McGee
shares  outstanding after the merger.  These quarterly dividend payments of $.45
per share and the net cash used in  investing  activities  were in excess of net
cash provided by operating activities. To supplement this shortfall,  borrowings
and other  financings  increased  by a net  amount of $238  million,  with a net
result of $146  million  increase  in cash.
     The  decrease in 1998 net cash  provided by operating  activities  resulted
primarily from the low crude oil price environment, which contributed to the net
loss and from  increased  working  capital and other changes that used cash from
operating  activities.  Net cash provided by operating activities was reduced by
taxes  paid  related to the sale of the  discontinued  coal  operations  of $115
million.
     In 1998, proceeds of approximately $600 million were received from the sale
of the company's discontinued coal operations, $150 million from the sale of the
marginal  exploration  and production  properties  and the ammonium  perchlorate
operations  and $20 million from other  investing  activities.  These sources of
cash from  investing  activities  and net proceeds  from debt  issuances of $481
million were used for capital expenditures of $981 million,  acquisitions of the
Gulf  Canada  North  Sea  assets  and  the  European  titanium  dioxide  pigment
facilities totaling $518 million and dry hole costs of $92 million.
     The company's  Board of Directors  authorized a stock  purchase  program in
1998. A total of 580,000  shares ($25 million) was purchased  before the program
was cancelled because of the company's merger.

Liquidity
     At year-end 1999, total debt  outstanding was $2.5 billion.  The percentage
of total debt less cash to total  capitalization  was 60% at December  31, 1999;
61% at December 31, 1998; and 50% at year-end  1997.  The slight  improvement at
year-end  1999  resulted  from the impact of the equity  increase  from 1999 net
income on total  capitalization.  The  impact of  increased  borrowings  in 1998
accounted for the increase in the 1998 percentage.  Borrowings increased because
the level of the capital expenditure program and the two 1998 acquisitions were,
in  total,  in  excess  of the  proceeds  from the sale of the coal  operations.
     Significant 1999 debt transactions included issuance of $327 million 5-1/2%
debt  exchangeable  for common  stock of Devon due August 2, 2004.  (The company
owns  9,954,000  shares of outstanding  Devon common  stock.) In addition,  $150
million  floating  rate notes due 2001 were issued in November to  institutional
investors with interest payable quarterly at three-month LIBOR plus 0.5%.
     The company  believes  it has the  ability to provide  for its  operational
needs and its long- and short-term  capital  programs through its operating cash
flow, borrowing capacity and ability to raise capital. At December 31, 1999, the
company had unused lines  of credit and  revolving  credit  agreements  totaling
$1.4  billion.  Of this amount,  $835 million and $400 million  could be used to
support the commercial paper borrowings of Kerr-McGee  Credit LLC and Kerr-McGee
Oil (U.K.)  PLC,  respectively,  both  wholly  owned  subsidiaries.  Outstanding
revolving  credit  borrowings  at year-end  1999  totaled $85 million at varying
rates of interest.
     On  February  26,  1999,  the date of the merger,  the  company  signed two
revolving credit facilities replacing $75 million of a Kerr-McGee Oil (U.K.) PLC
revolving  credit facility and Oryx's $500 million,  five-year  revolving credit
facility  entered  into  October  20,  1997.  The two  agreements  consist  of a
three-year,  $500  million  facility  and  a  364-day,  $250  million  facility.
One-third of the borrowings under each of the agreements can be drawn by foreign
subsidiaries.  The  borrowings can be made in British pound  sterling,  euros or
other local  European  currencies.  Interest  for each of the  revolving  credit
facilities is payable at varying rates. Effective February 25, 2000, the 364-day
facility was renewed and  increased to $350 million.
     At December 31, 1999, the company classified $793 million of its short-term
obligations as long-term debt. Final settlement of these obligations, consisting
of revolving credit borrowings and commercial paper, is not expected to occur in
2000.  The company has the intent and the  ability,  as  evidenced  by committed
credit arrangements,  to refinance this debt on a long-term basis. The company's
practice  has  been  to  continually   refinance  its  commercial  paper,  while
maintaining levels believed to be appropriate.
     The  company  increased  its shelf  registration  with the  Securities  and
Exchange  Commission  in  January  2000  to  offer  up to $1.5  billion  of debt
securities,  preferred stock, common stock or warrants.  In February 2000, under
this registration, the company issued 7.5 million shares of its common stock and
$600 million of 5-1/4% convertible  subordinated debentures due 2010, generating
nearly $1 billion in net proceeds to the company. These proceeds will be used to
redeem the short-term  floating rate debt used for the $555 million  acquisition
of Repsol S.A.'s North Sea oil and gas  operations in January 2000,  the pending
$403 million acquisition of Kemira Oyj's U.S. and Dutch titanium dioxide pigment
operations and/or reduction of other debt.
     In connection with these first quarter  transactions and offerings,  rating
agencies  confirmed the company's  debt ratings.  The ratings are "BBB+," "Baa1"
and  "BBB"  for  senior  unsecured  debt.  See  Note 8 for a  discussion  of the
company's debt at year-end 1999.
     The company  finances capital  expenditures  through  internally  generated
funds and various  borrowings.  Cash capital  expenditures  were $543 million in
1999,  $981 million in 1998 and $836  million in 1997, a total of $2.4  billion.
During this same  three-year  period,  $2.9  billion of net cash was provided by
operating  activities  (exclusive of working capital and other  changes),  which
exceeded  cash capital  expenditures  and  dividends  paid during the periods by
approximately $200 million.
     Management  anticipates  that 2000  cash  capital  requirements,  currently
estimated at $675 million,  and the capital  expenditures  programs for the next
several years can continue to be provided through internally generated funds and
selective borrowings.

Market Risks

     The company is exposed to a variety of market risks,  including the effects
of movements in foreign  currency  exchange  rates,  interest  rates and certain
commodity prices.  The company addresses its risks through a controlled  program
of risk  management that includes the use of derivative  financial  instruments.
The company does not hold or issue derivative financial  instruments for trading
purposes.  See  Notes  1 and  18 for  additional  discussions  of the  company's
financial instruments and hedging activities.

Foreign Currency Exchange
     The U.S. dollar is the functional currency for the company's  international
operations,  except for its European  chemical  operations.  It is the company's
intent to hedge a portion of its monetary assets and liabilities  denominated in
foreign currencies. Periodically, the company purchases foreign currency forward
contracts to provide funds for operating  and capital  expenditure  requirements
that will be denominated in foreign currencies, primarily Australian dollars and
British pound sterling.  These  contracts  generally have durations of less than
three years. The company also enters into forward contracts to hedge the sale of
various foreign currencies,  principally  generated from accounts receivable for
titanium  dioxide  pigment  sales  denominated  in  foreign  currencies.   These
contracts are principally  for European  currencies and generally have durations
of less than a year.  Since these  contracts  qualify as hedges and correlate to
currency movements, any gains or losses resulting from exchange rate changes are
deferred and  recognized as  adjustments  of the hedged  transaction  when it is
settled in cash.
     Following  are  the  notional  amounts  at  the  contract  exchange  rates,
weighted-average contractual exchange rates and estimated fair value by contract
maturity for open contracts at year-end 1999 and 1998 to purchase (sell) foreign
currencies. All amounts are U.S. dollar equivalents.
<TABLE>
<CAPTION>

                                                                   Notional        Weighted-Average        Estimated Fair
(Millions  of  dollars,  except  average  contract  rate)            Amount           Contract Rate                 Value
- ---------------------------------------------------------          --------        ----------------        --------------
<S>                                                                     <C>               <C>                         <C>
Open  contracts at December 31, 1999 -
  Maturing in 2000 -
    Australian dollar                                                   $48                   .6306                   $50
    French franc                                                         (1)                 6.2908                    (1)
    British pound sterling                                               (1)                  .6187                    (1)
    Italian lira                                                         (1)              1839.8282                    (1)
    New Zealand dollar                                                   (1)                 1.9775                    (1)
    Japanese yen                                                         (1)               102.4479                    (1)

  Maturing in 2001 -
    Australian dollar                                                    32                   .6499                     32
  Maturing in 2002 -
    Australian dollar                                                    16                   .6538                     16

Open contracts at December 31, 1998 -
  Maturing in 1999 -
    Australian dollar                                                    56                   .7117                     48
    German mark                                                          (1)                 1.6745                     (1)
    British pound sterling                                               41                  1.6355                     42
  Maturing in 2000 -
    Australian dollar                                                    21                   .6145                     21

</TABLE>

Interest Rates
     The company's  exposure to changes in interest  rates relates  primarily to
long-term debt  obligations.  The company has  participated in various  interest
rate hedging arrangements to help manage the floating-rate  portion of its debt.
There were no interest rate hedging  contracts entered into during 1999 or 1998.
At December 31, 1998, all interest rate hedging contracts had expired.
     The table below  presents  principal  amounts and related  weighted-average
interest  rates by maturity date for the company's  long-term  debt  obligations
outstanding at year-end 1999. All borrowings are in U.S. dollars.
<TABLE>
<CAPTION>

                                                                       There-         Fair Value
(Millions of dollars)           2000    2001    2002    2003    2004    after   Total   12/31/99
- ---------------------           ----    ----    ----    ----    ----    -----   -----   --------
<S>                             <C>     <C>     <C>     <C>     <C>      <C>   <C>        <C>
Fixed-rate debt -
  Principal amount               $20    $174     $33    $116    $491     $739  $1,573     $1,612
  Weighted-average
    interest rate               8.54%   9.78%   8.85%   8.04%   6.45%    7.28%   7.40%
Variable-rate debt -
  Principal amount                --    $416    $467     $60      --       --    $943       $943
  Weighted-average
    interest rate                 --    6.74%   6.70%   6.37%     --       --    6.69%
</TABLE>



     At December 31, 1998,  long-term  debt included  fixed-rate  debt of $1,497
million (fair value - $1,648 million) with a  weighted-average  interest rate of
8.17% and $717 million of  variable-rate  debt, which  approximated  fair value,
with a weighted-average interest rate of 5.92%.

Commodity Prices
     The company  periodically  uses commodity  futures and collar  contracts to
hedge a portion of its crude oil and natural gas sales and natural gas purchased
for  operations  in  order to  minimize  the  price  risks  associated  with the
production  and  marketing  of crude oil and natural  gas.  Since the  contracts
qualify as hedges and correlate to price movements of crude oil and natural gas,
any gain or loss from these  contracts is deferred and recognized as part of the
hedged transaction.
     The company did not enter into any hedging arrangements in 1999 and settled
all open 1998  contracts  during the year. At December 31, 1998, the company had
open crude oil collar  contracts that hedged 4% of its 1999 worldwide  crude oil
sales  volumes  at an  average  floor  price of $15.85 per barrel and an average
ceiling price of $17.35 per barrel.  Also at December 31, 1998,  the company had
collar  arrangements  that  hedged 21% of its 1999  worldwide  natural gas sales
volumes at an  average  floor  price of $2.29 per MMBtu and an  average  ceiling
price of $2.47 per MMBtu.  The aggregate  carrying  value of these  contracts at
December 31, 1998, was $7 million, and the aggregate fair value, based on quotes
from brokers, was approximately $22 million.

Environmental Matters

     The  company's  operations  are subject to various  environmental  laws and
regulations.  Under these  laws,  the company is or may be required to remove or
mitigate  the effects on the  environment  of the disposal or release of certain
chemical,  petroleum  or  low-level  radioactive  substances  at various  sites,
including  sites  that  have  been  designated   Superfund  sites  by  the  U.S.
Environmental   Protection   Agency   (EPA)   pursuant   to  the   Comprehensive
Environmental  Response,  Compensation,  and Liability Act of 1980 (CERCLA),  as
amended. At December 31, 1999, the company had received notices that it has been
named a  potentially  responsible  party (PRP) with  respect to 17 existing  EPA
Superfund  sites that require  remediation and may share liability at certain of
these sites with  approximately 300 other PRPs. In addition,  the company and/or
its subsidiaries  have executed consent orders,  operate under a license or have
reached  agreements  to  perform  or  have  performed  remediation  or  remedial
investigations  and  feasibility  studies on sites not included as EPA Superfund
sites.
     The  company  does not  consider  the number of sites for which it has been
named a PRP to be a relevant  measure of liability.  The company is uncertain as
to its  involvement  in  many  of the  sites  because  of  continually  changing
environmental laws and  regulations; the nature of the company's businesses; the
large number of other PRPs;  the present  state of the law,  which imposes joint
and several liability on all PRPs under CERCLA;  and pending legal  proceedings.
Therefore,  the company is unable to reliably  estimate the potential  liability
and the  timing  of  future  expenditures  that  may  arise  from  many of these
environmental  sites.  Reserves have been  established  for the  remediation and
restoration of active and inactive sites where it is probable  that future costs
will be incurred and the liability is estimable.  In 1999, $85 million was added
to the  reserve  for active and  inactive  sites.  At  December  31,  1999,  the
company's  reserve for these sites  totaled $204 million.  In addition,  at year
- -end 1999, the company had a reserve of $257 million for the future costs of the
abandonment and removal of offshore well and production facilities at the end of
their productive  lives. In the Consolidated  Balance Sheet, $391 million of the
total reserve is classified as a deferred credit,  and the remaining $70 million
is  included  in  current   liabilities.
     Expenditures for the environmental protection and cleanup of existing sites
for each of the last three years and for the  three-year  period ended  December
31, 1999, are as follows:

(Millions of dollars)                             1999    1998    1997    Total
- ---------------------                             ----    ----    ----    -----
Charges to environmental reserves                 $121    $109    $ 96     $326
Recurring expenses                                  17      13      20       50
Capital expenditures                                 5      24      17       46
  Total                                           $143    $146    $133     $422

     The  company  has  not  recorded  in  the  financial  statements  potential
reimbursements  from  governmental  agencies or other third parties,  except for
amounts due from the U.S.  government  under Title X of the Energy Policy Act of
1992 (see Notes 11 and 14). The following  table reflects the company's  portion
of the  known  estimated  costs  of  investigation  and/or  remediation  that is
probable and  estimable.  The table  includes all EPA Superfund  sites where the
company has been notified it is a PRP under CERCLA and other sites for which the
company  believes it had some ongoing  financial  involvement  in  investigation
and/or remediation at year-end 1999.

<TABLE>
<CAPTION>


                                                                                           Total Known             Total
                                                                                             Estimated      Expenditures
                                                                                                  Cost      Through 1999
                                                                                           -----------      ------------
Location of Site                     Stage of Investigation/Remediation                        (Millions of dollars)
- ----------------                     ----------------------------------                        ---------------------

<S>                                  <C>                                                          <C>               <C>
EPA Superfund sites
  Milwaukee, Wis.                    Executed consent decree to remediate the site of
                                     a former wood-treating facility.  Awaiting approval
                                     of proposed remedy; installed and operating a free-
                                     product recovery system.                                     $ 15              $  9

  West Chicago, Ill., four sites     Began cleanup of first site in 1995.  Cleanup of second
  outside the facility               site began in 1997, and removal work neared completion
                                     at end of 1999.  Two sites are under study (see Note 11).      85                82

  12 sites individually immaterial   Various stages of investigation/remediation.                   47                40
                                                                                                  ----              ----
                                                                                                   147               131
                                                                                                  ----              ----
Non-EPA Superfund sites under
consent order, license or agreement
  West Chicago, Ill., facility       Decommissioning is in progress under State of Illinois
                                     supervision (see Note 11).  Began shipments to a
                                     permanent disposal facility in 1994.                          385               263

  Cleveland/Cushing, Okla.           Began cleanup in 1996.                                         75                61
  Henderson, Nev.                    Entered consent agreement in 1999.                             47                16
                                                                                                  ----              ----
                                                                                                   507               340
                                                                                                  ----              ----
  Non-EPA Superfund sites
  individually immaterial            Various stages of investigation/remediation.                  220               199
                                                                                                  ----              ----
     Total for all sites                                                                          $874              $670
                                                                                                  ====              ====
</TABLE>


     Management  believes adequate reserves have been provided for environmental
and all other  known  contingencies.  However,  it is possible  that  additional
reserves  could  be  required  in  the  future  due  to  the  previously   noted
uncertainties.

New Accounting Standards

     In June 1998, the Financial Accounting Standards Board issued Statement No.
133,  "Accounting for Derivative and Hedging Activities." The statement requires
recording all derivative instruments as assets or liabilities,  measured at fair
value. The standard is effective for fiscal years beginning after June 15, 2000.
The company is currently  evaluating the impact the standard will have on income
from continuing operations; however, management believes it will not be material
due to the limited  amount of  derivative  and hedging  activities  in which the
company currently engages.

Year 2000 Readiness
     In 1996, the company  established a formal Year 2000 Program  (Program) and
expanded  the  Program  to  include  Oryx  systems  at the time of the merger in
February  1999. The Program was to assess and correct Year 2000 problems in both
information  technology and noninformation  technology systems.  The Program was
organized  into two major  areas:  Business  Systems and  Facilities  Integrity.
Business  Systems  included   replacement   applications   such  as  purchasing,
inventory,  engineering,  financial,  human resources, etc. Facilities Integrity
encompassed  telecommunications,  plant process  controls,  instrumentation  and
embedded  chip  systems  as well  as an  assessment  of  third-party  Year  2000
readiness.  An integral part of the Program was communication with third parties
to assess  the  extent  and  status  of their  Year 2000  efforts.  The  company
contacted key suppliers, customers and partners requesting information regarding
Year 2000 readiness.
     No  significant  Year 2000 failures or events  occurred  within the company
during the 1999 year-end  rollover or during the first two months of 2000. It is
believed  the  readiness  of key  third-party  suppliers  and  partners has been
validated and there will be no future material impact on the company due to Year
2000  problems.  While  there  have been a few Year  2000  problems  related  to
vendor-supplied  items, none was considered  significant to business operations.
There are no  significant,  ongoing  Year 2000  contingencies  related  to major
customers  or  vendors.  Company  spending  patterns  have not  been  materially
affected  by Year 2000  remediation.  Even though  some  information  technology
projects were  postponed,  none was considered  significant.
     As of  December  31,  1999,  total  Program  expenditures  for  the  merged
company's Year 2000 activities were  approximately $53 million from inception to
completion,  which is not  material  to the  company's  consolidated  results of
operations,  financial position or cash flows. The total cost of the Program was
in line with the company's original estimate. Program expenditures were provided
through  internally  generated  funds. No further  significant  expenditures are
expected for Year 2000 activities.

Cautionary Statement Concerning Forward-Looking Statements

               Statements in this  Financial  Review  regarding the company's or
management's intentions,  beliefs or expectations are forward-looking statements
within the meaning of the Securities  Litigation  Reform Act. Future results and
developments  discussed in these  statements may be affected by numerous factors
and risks, such as the accuracy of the assumptions that underlie the statements,
the success of the oil and gas  exploration  and  production  program,  drilling
risks, the market value of Kerr-McGee's products,  uncertainties in interpreting
engineering data, demand for consumer products for which Kerr-McGee's businesses
supply raw materials,  general economic conditions,  and other factors and risks
discussed in the  company's SEC filings.  Actual  results and  developments  may
differ materially from those expressed or implied in this Financial Review.

Responsibility for Financial Reporting

     The company's  management is responsible  for the integrity and objectivity
of the financial data  contained in the financial  statements.  These  financial
statements have been prepared in conformity with generally  accepted  accounting
principles  appropriate  under the circumstances  and, where necessary,  reflect
informed   judgments  and  estimates  of  the  effects  of  certain  events  and
transactions based on currently available  information at the date the financial
statements were prepared.
     The  company's  management  depends  on the  company's  system of  internal
accounting  controls  to  assure  itself  of the  reliability  of the  financial
statements.  The  internal  control  system is  designed  to provide  reasonable
assurance, at appropriate cost, that assets are safeguarded and transactions are
executed  in  accordance  with  management's  authorizations  and  are  recorded
properly to permit the  preparation of financial  statements in accordance  with
generally accepted accounting principles. Periodic reviews  are made of internal
controls by the company's staff of internal  auditors,  and corrective action is
taken if needed.
     The Board of Directors reviews and monitors  financial  statements  through
its audit committee,  which is composed solely of directors who are not officers
or  employees of the  company.  The audit  committee  meets  regularly  with the
independent  public  accountants,  internal  auditors and  management  to review
internal accounting controls, auditing and financial reporting matters.
     The independent  public accountants are engaged to provide an objective and
independent  review of the  company's  financial  statements  and to  express an
opinion  thereon.  Their  audits are  conducted  in  accordance  with  generally
accepted  auditing  standards,  and their  report is included  on the  following
page.

Report of Independent Public Accountants

To the Stockholders and Board of Directors of Kerr-McGee Corporation:

     We have audited the accompanying  consolidated  balance sheet of Kerr-McGee
Corporation (a Delaware corporation) and subsidiary companies as of December 31,
1999 and 1998, and the related consolidated statements of income,  comprehensive
income and  stockholders'  equity and cash flows for each of the three  years in
the  period  ended  December  31,  1999.  These  financial  statements  are  the
responsibility of the company's management.  Our responsibility is to express an
opinion on these financial  statements based on our audits. We did not audit the
financial  statements of Oryx Energy  Company in 1998 or 1997,  which was merged
into the company  during  1999 in a  transaction  accounted  for as a pooling of
interests,  as  discussed  in Note  1.  Such  statements  are   included  in the
consolidated  financial  statements of Kerr-McGee  Corporation and reflect total
assets and total  revenues of 36 percent  and 37 percent in 1998,  respectively,
and total  revenues of 47 percent in 1997, of the related  consolidated  totals,
after restatement to reflect certain adjustments necessary to conform accounting
policies and  presentation as set forth in Note 23. The financial  statements of
Oryx Energy  Company prior to those  adjustments  were audited by other auditors
whose report has been furnished to us and our opinion,  insofar as it relates to
the amounts  included for Oryx Energy Company,  is based solely on the report of
the other auditors.
     We conducted our audits in accordance  with  auditing  standards  generally
accepted in the United States.  Those standards require that we plan and perform
the audit to obtain reasonable  assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements.  An
audit also includes  assessing the accounting  principles  used and  significant
estimates  made by  management,  as well as  evaluating  the  overall  financial
statement  presentation.  We  believe  that our  audits  and the report of other
auditors  provide a reasonable basis for our opinion.
     In our opinion,  based on our audits and the report of other auditors,  the
financial statements referred to above present fairly, in all material respects,
the financial position of Kerr-McGee  Corporation and subsidiary companies as of
December 31, 1999 and 1998,  and the results of their  operations and their cash
flows for each of the three years in the period  ended  December  31,  1999,  in
conformity with accounting  principles generally accepted in the United States.

Oklahoma City, Oklahoma,
  February 25, 2000                            ARTHUR ANDERSEN LLP


Report of Independent Accountants

To the Shareholders and Board of Directors, Oryx Energy Company:

     In our opinion, the accompanying consolidated balance sheets of Oryx Energy
Company and its Subsidiaries and the related consolidated  statements of income,
cash flows and changes in shareholders' equity (not presented separately herein)
present fairly, in all material respects, the consolidated financial position of
Oryx  Energy  Company  and its  Subsidiaries  as of  December  31,  1998 and the
consolidated  results of their  operations  and their cash flows for each of the
two years in the period ended  December 31, 1998 in conformity  with  accounting
principles  generally accepted in the United States.  These financial statements
are the  responsibility of the Company's  management;  our  responsibility is to
express an opinion on these  financial  statements in  accordance  with auditing
standards generally accepted in the United States which require that we plan and
perform the audit to obtain  reasonable  assurance  about  whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements,  assessing the accounting  principles used and significant estimates
made by management and evaluating the overall financial statement  presentation.
We believe that our audits provide a reasonable basis for the opinion  expressed
above.

PricewaterhouseCoopers LLP
Dallas, Texas
February 26, 1999

Consolidated Statement of Income
<TABLE>
<CAPTION>

(Millions of dollars, except per-share amounts                                   1999       1998       1997
- ----------------------------------------------                                 ------     ------     ------
<S>                                                                            <C>        <C>        <C>
Sales                                                                          $2,696     $2,200     $2,605
                                                                               ------     ------     ------
Costs and Expenses
    Costs and operating expenses                                                1,056      1,053      1,003
    General and administrative expenses                                           238        278        221
    Depreciation and depletion                                                    607        561        545
    Asset impairment                                                               --        446         --
    Exploration, including dry holes and amortization of undeveloped leases       140        215        139
    Taxes, other than income taxes                                                 85         53        103
    Merger costs                                                                  163         --         --
    Interest and debt expense                                                     190        157        141
                                                                               ------     ------     ------
            Total Costs and Expenses                                            2,479      2,763      2,152
                                                                               ------     ------     ------
                                                                                  217       (563)       453
Other Income                                                                       40         43         82
                                                                               ------     ------     ------
Income (Loss) from Continuing Operations before Income Taxes,
    Extraordinary Charge and Change in Accounting Principle                       257       (520)       535
Taxes on Income                                                                  (111)       175       (184)
                                                                               ------     ------     ------

Income (Loss) from Continuing Operations before Extraordinary
    Charge and Change in Accounting Principle                                     146       (345)       351
Income from Discontinued Operations, net of taxes of
    $156 in 1998 and $12 in 1997                                                   --        277         33
                                                                               ------     ------     ------
Income (Loss) before Extraordinary Charge and Change
    in Accounting principle                                                       146        (68)       384
Extraordinary Charge, net of taxes of $1                                           --         --         (2)
Cumulative Effect of Change in Accounting Principle,
    net of taxes                                                                   (4)        --         --
                                                                               ------     ------     ------
Net Income (Loss)                                                              $  142     $  (68)    $  382
                                                                               ======     ======     ======

Net Income (Loss) per Common Share
    Basic -
      Continuing operations                                                    $ 1.69     $(3.98)    $ 4.04
      Discontinued operations                                                      --       3.20        .38
      Extraordinary charge                                                         --         --       (.02)
      Cumulative effect of accounting change                                     (.05)        --         --
                                                                               ------     ------     ------
            Net income (loss)                                                  $ 1.64     $ (.78)    $ 4.40
                                                                               ======     ======     ======

    Diluted -
      Continuing operations                                                    $ 1.69     $(3.98)    $ 4.02
      Discontinued operations                                                      --       3.20        .38
      Extraordinary charge                                                         --         --       (.02)
      Cumulative effect of accounting change                                     (.05)        --         --
                                                                               ------     ------     ------
            Net income (loss)                                                  $ 1.64     $ (.78)    $ 4.38
                                                                               ======     ======     ======
</TABLE>

The accompanying notes are an integral part of this statement.


Consolidated Statement of Comprehensive Income and Stockholders' Equity
<TABLE>
<CAPTION>

                                                                                       Accumu-
                                                                                         lated
                                                                                         Other
                                          Compre-                                      Compre-                                Total
                                          hensive           Capital in                 hensive                  Deferred     Stock-
                                           Income   Common   Excess of   Retained       Income   Treasury   Compensation   holders'
(Millions of dollars)                      (Loss)    Stock   Par Value   Earnings       (Loss)      Stock      and Other     Equity
- ---------------------                     -------   ------  ----------   --------      -------   --------   ------------   --------
<S>                                         <C>        <C>      <C>          <C>         <C>        <C>            <C>       <C>
Balance December 31, 1996                              $93      $1,241       $436        $(12)      $(306)         $(173)    $1,279
  Net income                                $382        --          --        382          --          --             --        382
  Unrealized gains on securities,
    net of $1 income tax                       2        --          --         --           2          --             --          2
  Realized gains on securities,
    net of $6 income tax                     (12)       --          --         --         (12)         --             --        (12)
  Appreciation of securities
    donated, net of $1
    income tax                                (2)       --          --         --          (2)         --             --         (2)
  Minimum pension liability
    adjustment                                (5)       --          --         --          (5)         --             --         (5)
  Shares issued                               --        --          33         --          --          --             --         33
  Shares acquired                             --        --          --         --          --         (57)            --        (57)
  Dividends declared
    ($1.80 per share)                         --        --          --        (86)         --          --             --        (86)
  Other                                       --        --          --         (1)         --          --             25         24
                                            ----       ---      ------       ----        ----       -----          -----     ------
    Total                                   $365
                                            ====

Balance December 31, 1997                               93       1,274        731         (29)       (363)          (148)     1,558
  Net loss                                  $(68)       --          --        (68)         --          --             --        (68)
  Foreign currency translation
    adjustment                                (5)       --          --         --          (5)         --             --         (5)
  Minimum pension liability
    adjustment                                (2)       --          --         --          (2)         --             --         (2)
  Shares issued                               --        --           8         --          --          --             --          8
  Shares acquired                             --        --          --         --          --         (25)            --        (25)
  Dividends declared
    ($1.80 per share)                         --        --          --        (86)         --          --             --        (86)
  Effect of equity affiliate's
    merger                                    --        --          --        (51)         --          --             --        (51)
  Other                                       --        --          --          1          --          --             16         17
                                            ----       ---      ------       ----        ----       -----          -----     ------
    Total                                   $(75)
                                            ====

Balance December 31, 1998                               93       1,282        527         (36)       (388)          (132)     1,346
  Net income                                $142        --          --        142          --          --             --        142
  Unrealized gains on securities,
    net of $42 income tax                     79        --          --         --          79          --             --         79
  Foreign currency translation
    adjustment                               (23)       --          --         --         (23)         --             --        (23)
  Minimum pension liability
    adjustment                                25        --          --         --          25          --             --         25
  Shares issued                               --        --           2         --          --          --             --          2
  Dividends declared
    ($1.80 per share)                         --        --          --       (156)         --          --             --       (156)
  Effect of equity affiliate's
    merger                                    --        --          --         63          --          --             --         63
  Other                                       --        --          --         --          --          --             14         14
                                            ----       ---      ------       ----        ----       -----          -----     ------
    Total                                   $223
                                            ====
Balance December 31, 1999                              $93      $1,284       $576        $ 45       $(388)         $(118)    $1,492
                                                       ===      ======       ====        ====       =====          =====     ======
</TABLE>

The accompanying notes are an integral part of this statement.


Consolidated Balance Sheet
<TABLE>
<CAPTION>

(Millions of dollars)                                                       1999            1998
- ---------------------                                                     ------          ------
<S>                                                                       <C>             <C>
ASSETS

Current Assets
  Cash                                                                    $  267          $  121
  Accounts receivable, net of allowance for doubtful
    accounts of $8 in 1999 and $5 in 1998                                    501             389
  Inventories                                                                281             247
  Deposits, prepaid expenses and other                                       112             120
                                                                          ------          ------
      Total Current Assets                                                 1,161             877
Investments
  Equity affiliates                                                           59             170
  Other   assets                                                             467              87
Property, Plant and Equipment - Net                                        4,085           4,153
Deferred Charges                                                             127             164
                                                                          ------          ------
        Total Assets                                                      $5,899          $5,451
                                                                          ======          ======

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities
  Accounts payable                                                        $  404          $  385
  Short-term borrowings                                                        9              36
  Long-term debt due within one year                                          20             236
  Taxes on income                                                             70              48
  Taxes, other than income taxes                                              40              11
  Accrued liabilities                                                        297             334
                                                                          ------          ------
      Total Current Liabilities                                              840           1,050
                                                                          ------          ------

Long-Term Debt                                                             2,496           1,978
                                                                          ------          ------
Deferred Credits and Reserves
  Income taxes                                                               401             329
  Other                                                                      670             748
                                                                          ------          ------
      Total Deferred Credits and Reserves                                  1,071           1,077
                                                                          ------          ------

Stockholders' Equity
  Common stock, par value $1.00 - 300,000,000 shares authorized,
    93,494,186 shares issued in 1999 and 93,378,069 shares
    issued in 1998                                                            93              93
  Capital in excess of par value                                           1,284           1,282
  Preferred stock purchase rights                                              1               1
  Retained earnings                                                          576             527
  Accumulated other comprehensive income (loss)                               45             (36)
  Common stock in treasury, at cost - 7,010,790 shares
    in both 1999 and 1998                                                   (388)           (388)
  Deferred compensation                                                     (119)           (133)
                                                                          ------          ------
      Total Stockholders' Equity                                           1,492           1,346
                                                                          ------          ------
        Total Liabilities and Stockholders' Equity                        $5,899          $5,451
                                                                          ======          ======
</TABLE>


The  "successful  efforts"  method of accounting for oil and gas exploration and
production activities has been followed in preparing this balance sheet.

The  accompanying  notes are an integral part of this balance sheet.


Consolidated Statement of Cash Flows
<TABLE>
<CAPTION>

(Millions of dollars)                                                             1999      1998      1997
- ---------------------                                                            -----     -----     -----
<S>                                                                             <C>        <C>      <C>
Cash Flow from Operating Activities
  Net income (loss)                                                             $  142     $ (68)   $  382
  Adjustments to reconcile to net cash provided by operating activities -
    Depreciation, depletion and amortization                                       648       615       593
    Deferred income taxes                                                           --       (98)       31
    Dry hole cost                                                                   43       100        53
    Merger and transition costs                                                    131        --        --
    Asset impairment                                                                --       446        --
    Provision for environmental remediation and restoration of inactive sites       --        41        20
    Gain on sale of coal operations, net of income taxes                            --      (257)       --
    Gain on sale of exploration and production properties                           (2)      (20)       (3)
    Realized gain on available-for-sale securities                                  --        --       (18)
    Retirements and (gain) loss on sale of other assets                             (1)       13        (4)
    Noncash items affecting net income                                              67        13        23
    Changes in current assets and liabilities and other, net of effects
      of operations acquired and sold -
        (Increase) decrease in accounts receivable                                 (56)      164       139
        (Increase) decrease in inventories                                         (34)      (54)       40
        (Increase) decrease in deposits and prepaids                                10       (92)       17
        Decrease in accounts payable and accrued liabilities                      (198)     (103)      (53)
        Increase (decrease) in taxes payable                                        92      (165)       66
        Other                                                                     (129)     (150)     (189)
                                                                                ------     -----    ------
          Net cash provided by operating activities                                713       385     1,097
                                                                                ------     -----    ------

Cash Flow from Investing Activities
  Capital expenditures                                                            (543)     (981)     (836)
  Cash dry hole cost                                                               (33)      (92)      (52)
  Acquisitions                                                                     (78)     (518)       --
  Purchase of long-term investments                                                (39)       (3)      (12)
  Proceeds from sale of long-term investments                                       27        12        13
  Proceeds from sale of discontinued operations                                     --       599        --
  Proceeds from sale of chemical and exploration and production properties           4       150        17
  Proceeds from sale of available-for-sale securities                               --        --        21
  Proceeds from sale of other assets                                                --        11        17
                                                                                ------     -----    ------
          Net cash used in investing activities                                   (662)     (822)     (832)
                                                                                ------     -----    ------

Cash Flow from Financing Activities
  Issuance of long-term debt                                                     1,084       563       390
  Issuance of common stock                                                           4         6        28
  Increase (decrease) in short-term borrowings                                     (27)       11       (12)
  Repayment of long-term debt                                                     (782)      (93)     (464)
  Dividends paid                                                                  (138)      (86)      (85)
  Lease buyout                                                                     (41)       --        --
  Treasury stock purchased                                                          --       (25)      (60)
                                                                                ------     -----    ------
          Net cash provided by (used in) financing activities                      100       376      (203)
                                                                                ------     -----    ------

Effects of Exchange Rate Changes on Cash and Cash Equivalents                       (5)      (10)       --
                                                                                ------     -----    ------

Net Increase (Decrease) in Cash and Cash Equivalents                               146       (71)       62
Cash and Cash Equivalents at Beginning of Year                                     121       192       130
                                                                                ------     -----    ------
Cash and Cash Equivalents at End of Year                                        $  267     $ 121    $  192
                                                                                ======     =====    ======
</TABLE>


The  accompanying  notes are an integral part of this statement.

Notes to Financial Statements

1. The Company and Significant Accounting Policies

     Kerr-McGee is an energy and chemical company with worldwide operations.  It
explores for, develops,  produces and markets crude oil and natural gas, and its
chemical operations  primarily produce and market titanium dioxide pigment.  The
exploration  and  production  unit  produces and explores for oil and gas in the
United States,  the United Kingdom  sector of the North Sea,  Indonesia,  China,
Kazakhstan  and Ecuador.  Exploration  efforts are also  extended to  Australia,
Algeria,  Brazil, Gabon, Thailand, Yemen and the Danish sector of the North Sea.
The chemical unit has  operations in the United States,  Australia,  Germany and
Belgium.
     On February 26, 1999, the merger between Kerr-McGee and Oryx Energy Company
(Oryx) was completed.  Oryx was a worldwide  independent oil and gas exploration
and production  company.  Under the merger agreement,  each outstanding share of
Oryx common  stock was  effectively  converted  into the right to receive  0.369
shares of newly  issued  Kerr-McGee  common  stock.  The merger  qualified  as a
tax-free exchange to Oryx's shareholders and has been accounted for as a pooling
of interests.  In the  aggregate,  Kerr-McGee  issued  approximately  39 million
shares of Kerr-McGee  common  stock,  bringing the total shares  outstanding  to
approximately 86 million.  Kerr-McGee's  consolidated  financial statements have
been restated for periods prior to the merger to include the operations of Oryx,
adjusted to conform to Kerr-McGee's accounting policies and presentation.

Basis of Presentation
     The  consolidated   financial   statements  include  the  accounts  of  all
subsidiary companies that are more than 50% owned and the proportionate share of
joint  ventures in which the company has an undivided  interest.  Investments in
affiliated  companies  that are 20% to 50% owned are  carried as  Investments  -
Equity affiliates in the Consolidated  Balance Sheet at cost adjusted for equity
in  undistributed  earnings.  Except for  dividends  and  changes  in  ownership
interest,  changes  in equity in  undistributed  earnings  are  included  in the
Consolidated  Statement of Income. All material  intercompany  transactions have
been eliminated.
     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that affect the  reported  amounts of assets and  liabilities,  the
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates as additional
information becomes known.

Foreign Currencies
     The U.S.  dollar is  considered  the  functional  currency  for each of the
company's international operations, except for its European chemical operations.
Foreign  currency  transaction  gains or losses  are  recognized  in the  period
incurred.  The company  recorded net foreign currency  transaction  gains of $11
million in 1999. The net foreign currency  transaction  gains and losses in 1998
and 1997 were immaterial.
     The euro is the functional  currency for the European chemical  operations.
Translation  adjustments  resulting from  translating  the  functional  currency
financial  statements  into U.S. dollar  equivalents are reported  separately in
Accumulated Other Comprehensive  Income (Loss) in the Consolidated  Statement of
Comprehensive Income and Stockholders' Equity.

Net Income (Loss) per Common Share
     Basic net income  (loss) per share  includes no dilution and is computed by
dividing income available to common stockholders by the weighted-average  number
of common  shares  outstanding  for the period.  Diluted net income per share is
computed by dividing net income by the weighted-average  number of common shares
and common stock equivalents outstanding for the period.
     The  weighted-average  number of shares  used to  compute  basic net income
(loss) per share was  86,414,373 in 1999,  86,688,026 in 1998 and  86,756,138 in
1997.  After  adding the  dilutive  effect of the  conversion  of options to the
weighted-average  number of  shares  outstanding,  the  shares  used to  compute
diluted net income per share were  86,497,207  in 1999 and  87,113,906  in 1997.
There was no dilution for 1998 since the company incurred a loss from continuing
operations.
     Not included in the  calculation of the  denominator for diluted net income
per share were  2,063,079  and 494,063  employee  stock options  outstanding  at
year-end 1999 and 1997, respectively.  The inclusion of these options would have
been  antidilutive  since  they  were  not  "in  the  money"  at the  end of the
respective years.
     The company has reserved  1,791,646  shares of common stock for issuance to
the  owners  of  its  7-1/2%  Convertible   Subordinated   Debentures  due  2014
(Debentures).  The Debentures are convertible into the company's common stock at
any time prior to maturity at $106.03 per share of common stock.  The conversion
of the Debentures  was not considered for purposes of calculating  income (loss)
per share,  as the impact would have been  antidilutive to net income (loss) per
share for the periods presented.

Cash Equivalents
     The company  considers all  investments  with a maturity of three months or
less to be cash equivalents.  Cash equivalents totaling $156 million in 1999 and
$58 million in 1998 were comprised of time deposits, certificates of deposit and
U.S. government securities.

Inventories
     The  costs of the  company's  product  inventories  are  determined  by the
first-in,  first-out (FIFO) method.  Inventory  carrying values include material
costs, labor and the associated indirect manufacturing  expenses.  Materials and
supplies are valued at average cost.

Property, Plant and Equipment
     Oil and Gas - Exploration  expenses,  including  geological and geophysical
costs,  rentals  and  exploratory  dry  holes,  are  charged  against  income as
incurred.  Costs of  successful  wells  and  related  production  equipment  and
developmental  dry  holes  are  capitalized  and  amortized  by field  using the
unit-of-production  method as the oil and gas are produced.
     Undeveloped  acreage  costs are  capitalized  and  amortized  at rates that
provide full  amortization  on  abandonment  of  unproductive  leases.  Costs of
abandoned leases are charged to the accumulated amortization accounts, and costs
of productive leases are transferred to the developed property accounts.
     Other - Property,  plant and  equipment is stated at cost less reserves for
depreciation,  depletion and amortization.  Maintenance and repairs are expensed
as  incurred,  except that costs of  replacements  or renewals  that  improve or
extend the lives of existing  properties are capitalized.  Costs of nonproducing
mineral acreage  surrendered or otherwise  disposed of are charged to expense at
the time of disposition.
     Depreciation  and Depletion - Property,  plant and equipment is depreciated
or  depleted  over  its  estimated  life  by  the   unit-of-production   or  the
straight-line method. Capitalized exploratory drilling and development costs are
amortized using the  unit-of-production  method based on total estimated  proved
developed oil and gas reserves.  Amortization of producing  leasehold,  platform
costs   and   acquisition   costs  of   proved   properties   is  based  on  the
unit-of-production  method using total estimated proved reserves. In arriving at
rates under the  unit-of-production  method,  the quantities of recoverable oil,
gas and other minerals are established  based on estimates made by the company's
geologists  and  engineers.
     Retirements and Sales - The costs and related  depreciation,  depletion and
amortization  reserves are removed from the respective  accounts upon retirement
or sale of property, plant and equipment. The resulting gain or loss is included
in other income.
     Interest  Capitalized  - The company  capitalizes  interest  costs on major
projects  that  require  a  considerable  length of time to  complete.  Interest
capitalized in 1999, 1998 and 1997 was $9 million,  $28 million and $24 million,
respectively.

Impairment of Long-Lived Assets
     Proved  oil  and  gas   properties   are  reviewed  for   impairment  on  a
field-by-field  basis when facts and circumstances  indicate that their carrying
amounts may not be recoverable. In performing this review, future cash flows are
estimated by applying  estimated  future oil and gas prices to estimated  future
production,  less  estimated  future  expenditures  to develop  and  produce the
reserves.  If the sum of these  estimated  future cash flows  (undiscounted  and
without interest  charges) is less than the carrying amount of the property,  an
impairment  loss is  recognized  for the excess of the carrying  amount over the
estimated  fair value of the property.
     Other  assets are  reviewed  for  impairment  by asset  group for which the
lowest level of  independent  cash flows can be  identified  and impaired in the
same manner as proved oil and gas properties.

Revenue Recognition
     Except for natural gas sales and most crude oil, revenue is recognized when
title  passes  to  the   customer.   Natural  gas  revenues  and   gas-balancing
arrangements  with partners in natural gas wells are recognized  when the gas is
produced  using  the  entitlements  method  of  accounting  and are based on the
company's  net  working  interests.  At  December  31,  1999 and 1998,  both the
quantity and dollar amount of gas balancing arrangements were immaterial.  Crude
oil sales are  recognized  when  produced  using  the  entitlements  method if a
contract exists for the sale of the production.

Lease Commitments
     The  company  utilizes   various  leased   properties  in  its  operations,
principally for office space and production facilities. Lease rental expense was
$41 million in 1999,  $37 million in 1998 and $39 million in 1997.
     The aggregate minimum annual rentals under  noncancelable  leases in effect
on December 31, 1999, totaled $92 million,  of which $20 million is due in 2000,
$21 million in 2001, $24 million in the period 2002 through 2004 and $27 million
thereafter.

Income Taxes
     Deferred  income taxes are provided to reflect the future tax  consequences
of  differences  between  the tax  basis of  assets  and  liabilities  and their
reported amounts in the financial statements.

Site Dismantlement, Remediation and Restoration Costs
     The  company  provides  for the  estimated  costs at current  prices of the
dismantlement and removal of oil and gas production and related facilities. Such
costs are  accumulated  over the estimated lives of the facilities by the use of
the unit-of-production method. As sites of environmental concern are identified,
the company assesses the existing conditions,  claims and assertions,  generally
related to former operations,  and records an estimated  undiscounted  liability
when  environmental  assessments  and/or  remedial  efforts are probable and the
associated costs can be reasonably estimated.

Employee Stock Option Plans
     The  company  accounts  for its  employee  stock  option  plans  using  the
intrinsic value method in accordance with  Accounting  Principles  Board Opinion
(APB) No. 25, "Accounting for Stock Issued to Employees."

Futures, Forward and Option Contracts
     The  company  hedges a portion  of its  monetary  assets,  liabilities  and
commitments  denominated  in  foreign  currencies.   Periodically,  the  company
purchases  foreign currency forward contracts to provide funds for operating and
capital expenditure  requirements that will be denominated in foreign currencies
and sells foreign currency forward contracts to convert receivables that will be
paid in foreign  currencies to U.S.  dollars.  Since these contracts  qualify as
hedges and  correlate to currency  movements,  any gain or loss  resulting  from
market  changes is offset by gains or losses on the hedged  receivable,  capital
item or operating cost.
     From time to time the company enters into  arrangements to hedge the impact
of price  fluctuations on anticipated crude oil and natural gas sales.  Gains or
losses on hedging  activities  are  recognized  in oil and gas  revenues  in the
period in which the hedged production is sold.
     The company  periodically  enters into interest rate hedging  agreements to
alter the  floating  rate  portion of its  underlying  debt  portfolio.  Advance
proceeds  received under the agreements are included in deferred credits and are
amortized as offsets to interest and debt expense over the relevant periods. The
differentials  paid or received  during the terms of such agreements are accrued
as interest  rates change and are recorded as  adjustments  to interest and debt
expense.


2. Cash Flow Information

     Net cash provided by operating activities reflects cash payments for income
taxes and interest as follows:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Income tax payments                                    $111    $151    $ 89
Less refunds received                                   (85)    (40)    (37)
                                                       ----    ----    ----
Net income tax payments                                $ 26    $111    $ 52
                                                       ====    ====    ====
Interest payments                                      $191    $180    $163
                                                       ====    ====    ====

     Noncash  transactions not reflected in the  Consolidated  Statement of Cash
Flows  include  capital  expenditures  for  which  payment  will  be made in the
subsequent  year  totaling $28 million,  $43 million and $19 million at year-end
1999,  1998 and 1997,  respectively;  the  revaluation  in 1999 to fair value of
stock owned in a company  previously  accounted  for using the equity  method of
accounting and the  revaluation  to fair value of the debt that is  exchangeable
into the stock of the investee;  transactions  during 1997  associated  with the
assignments  of  interest  of  certain  North  Sea oil and gas  properties;  the
revaluation  of  certain  other  investments  to fair  value;  and  transactions
affecting  deferred  compensation  associated  with the Employee Stock Ownership
Plan in each of the three years (see Notes 18 and 20).

3. Inventories

     Major categories of inventories at year-end 1999 and 1998 are:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Chemicals and other products                           $212    $185
Materials and supplies                                   67      53
Crude oil                                                 2       9
                                                       ----    ----
  Total                                                $281    $247
                                                       ====    ====

4. Deferred Charges

     Deferred charges are as follows at year-end 1999 and 1998:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Pension plan prepayments                               $ 79    $101
Unamortized debt issue costs                             18       8
Amounts pending recovery from third parties              10       8
Intangible assets                                         6       8
Nonqualified pension plan deposits                       --      10
Preoperating and startup costs                           --       6
Other                                                    14      23
                                                       ----    ----
  Total                                                $127    $164
                                                       ====    ====

     Effective January 1, 1999, the company began expensing the cost of start-up
activities in accordance with Statement of Position No. 98-5,  "Reporting on the
Costs of Start-Up Activities." The $6 million of unamortized costs at the end of
1998 was recognized in 1999 as the  cumulative  effect of a change in accounting
principle ($4 million after taxes).

5. Investments - Equity Affiliates

     At December  31, 1999 and 1998,  investments  in equity  affiliates  are as
follows:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Devon Energy Corporation                                $--    $108
Javelina Company                                         27      30
National Titanium Dioxide Company Limited                18      18
Other                                                    14      14
                                                        ---    ----
  Total                                                 $59    $170
                                                        ===    ====

     The company holds 9,954,000 shares of Devon common stock, a publicly traded
oil and gas exploration and production  company.  The company accounted for this
investment  using the equity  method until 1999 when its  ownership  interest of
approximately  20%  fell to  approximately  12% as a  result  of  Devon  issuing
additional common stock in its merger with a third party. The difference between
the  company's  carrying  amount of the  investment  before  the  merger and the
underlying  net book value of the  investment  after the merger was $63 million,
net of deferred tax, and was reflected as a 1999 increase to retained  earnings.
The  company's  investment  in Devon is now  accounted  for at market value (see
Notes 6 and 18).
     Javelina Company and National  Titanium  Dioxide Company Limited  represent
the company's  investment of 40% and 25%,  respectively,  in nonexploration  and
production joint ventures or partnerships.
     Following are financial  summaries of the company's equity affiliates.  Due
to  immateriality,  investments  shown as Other in the preceding table have been
excluded from the information below.

(Millions of dollars)                                  1999    1998    1997
Results of operations -
  Net sales(1)                                         $256  $  593    $570
  Net income (loss)(2)                                   33     (41)    105

Financial position -
  Current assets                                        125     222
  Property, plant and equipment - net                   234   1,334
  Total assets                                          361   1,582
  Current liabilities                                    91     170
  Total liabilities                                     144     844
  Stockholders' equity                                  217     738

(1) Includes net sales to the company of $2 million and $26 million for 1998 and
1997, respectively. There were no sales to the company in 1999.

(2) The 1998 loss  includes  a  full-cost  write-down  recorded  by  Devon.  The
company's proportionate share of the write-down was $27 million.

6. Investments - Other Assets

     Investments  in other assets  consist of the following at December 31, 1999
and 1998:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Devon Energy Corporation common stock(1)               $327    $ --
Long-term receivables, net of $9 allowance
  for doubtful notes in both 1999 and 1998              105      41
Net deferred tax asset                                   12      17
U.S. government obligations                              11      17
Patents                                                   7       6
Other                                                     5       6
                                                       ----    ----
  Total                                                $467    $ 87
                                                       ====    ====

(1) See Notes 5 and 18.

7. Property, Plant and Equipment

     Fixed  assets and related  reserves at December  31, 1999 and 1998,  are as
follows:

<TABLE>
<CAPTION>

                                                             Reserves for
                                                           Depreciation and
                                  Gross Property              Depletion         Net Property
                                 ---------------           ----------------     --------------
(Millions of dollars)               1999    1998             1999    1998         1999    1998
- ---------------------            ------- -------           ------  ------       ------  ------
<S>                              <C>     <C>               <C>     <C>          <C>     <C>
Exploration and production       $ 9,689 $ 9,359           $6,245  $5,837       $3,444  $3,522
Chemicals                          1,224   1,162              640     588          584     574
Other                                136     130               79      73           57      57
                                 ------- -------           ------  ------       ------  ------
  Total                          $11,049 $10,651           $6,964  $6,498       $4,085  $4,153
                                 ======= =======           ======  ======       ======  ======
</TABLE>

8. Debt

Lines of Credit and Short-Term Borrowings
     At year-end 1999, the company had available unused bank lines of credit and
revolving credit facilities of $1,373 million.  Of this amount, $835 million and
$400 million can be used to support  commercial paper borrowing  arrangements of
Kerr-McGee Credit LLC and Kerr-McGee Oil (U.K.) PLC,  respectively.
     The company has arrangements to maintain compensating balances with certain
banks that  provide  credit.  At year-end  1999,  the  aggregate  amount of such
compensating balances was immaterial, and the company was not legally restricted
from withdrawing all or a portion of such balances at any time during the year.
     Short-term  borrowings at year-end 1999 consisted of notes payable totaling
$9 million (4.88% average  interest rate).  The notes are denominated in foreign
currency and represent  approximately  361 million  Belgian  francs.  Short-term
borrowings  outstanding  at  year-end  1998  were  made up of  commercial  paper
totaling $28 million (6.37% average  effective  interest rate) and notes payable
totaling $8 million (3.63% average interest rate) or 281 million Belgian francs.

Long-Term Debt
     The company's  policy is to classify  certain  borrowings  under  revolving
credit  facilities and commercial  paper as long-term debt since the company has
the ability under certain revolving credit agreements and the intent to maintain
these  obligations  for longer than one year.  At year-end  1999 and 1998,  debt
totaling  $793  million  and  $717  million,  respectively,  was  classified  as
long-term consistent with this policy.
     Long-term debt consisted of the following at year-end 1999 and 1998.
<TABLE>
<CAPTION>

(Millions of dollars)                                                                   1999            1998
- ---------------------                                                                 ------          ------
<S>                                                                                   <C>             <C>
Debentures -
  7-1/2% Convertible subordinated debentures, $10 due annually May 15, 2000
    through 2013 and $50 due May 15, 2014                                             $  190          $  200
  7.125% Debentures due October 15, 2027 (7.01% effective rate)                          150             150
  7% Debentures due November 1, 2011, net of unamortized debt discount of
    $103 in 1999 and $105 in 1998 (14.25% effective rate)                                147             145
  5-1/2% Exchangeable notes due August 2, 2004                                           327              --
  8-1/2% Sinking fund debentures due June 1, 2006                                         --              11
Notes payable -
  10% Notes due April 1, 2001                                                            150             250
  6.625% Notes due October 15, 2007 (6.54% effective rate)                               150             150
  8.375% Notes due July 15, 2004                                                         150             150
  8.125% Notes due October 15, 2005                                                      150             150
  8% Notes due October 15, 2003                                                          100             100
  9.5% Notes due November 1, 1999                                                         --             100
  Variable interest rate revolving credit agreements with banks (6.34% average rate
    at December 31, 1999), $25 due December 4, 2001 and $60 due March 6, 2003             85             598
  Variable interest rate notes due November 1, 2001 (6.7% effective rate)                150              --
  Medium-Term  Notes (9.29%  average  effective  interest  rate at
    December 31, 1999),  $11 due January 2, 2002 and $2 due February 1, 2002              13              28
Commercial paper (6.76% average effective  interest rate at December 31, 1999)           612             119
Euro Commercial  paper (6.54% average effective interest rate at December 31, 1999        96              --
Guaranteed Debt of Employee Stock Ownership Plan 9.61% Notes due in installments
  through January 2, 2005                                                                 43              49
Other                                                                                      3              14
                                                                                      ------          ------
                                                                                       2,516           2,214
Long-term debt due within one year                                                       (20)           (236)
                                                                                      ------          ------
    Total                                                                             $2,496          $1,978
                                                                                      ======          ======
</TABLE>

     Maturities of long-term  debt due after  December 31, 1999, are $20 million
in 2000,  $590 million in 2001, $500 million in 2002, $176 million in 2003, $491
million in 2004 and $739 million thereafter.
     Certain of the company's  long-term  debt  agreements  contain  restrictive
covenants, including a minimum tangible net worth requirement and a minimum cash
flow to fixed charge ratio.  At December 31, 1999, the company was in compliance
with its debt covenants.
     Additional  information  regarding  the major  changes  in debt  during the
periods and unused  commitments  for  financing  is  included  in the  Financial
Condition section in Management's Discussion and Analysis.

9. Accrued Liabilities

     Accrued liabilities at year-end 1999 and 1998 are as follows:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Interest payable                                       $ 72    $ 71
Current environmental reserves                           70      83
Employee-related costs and benefits                      66      59
Royalties payable                                        22      14
Merger reserve(1)                                        20      --
Litigation reserves                                      18      --
Drilling and operating costs                             15      67
Restructuring reserve(1)                                 --      20
Other                                                    14      20
                                                       ----    ----
  Total                                                $297    $334
                                                       ====    ====

(1) See Note 22.

10. Common Stock

     Changes in common stock issued and treasury  stock held for 1999,  1998 and
1997 are as follows:
<TABLE>
<CAPTION>

(Thousands of shares)                                           Common Stock            Treasury Stock
- ---------------------                                           ------------            --------------
<S>                                                                   <C>                        <C>
Balance December 31, 1996                                             92,601                     5,569
  Exercise of stock options and stock appreciation rights                627                        --
  Issuance of shares for achievement awards                               --                        (2)
  Stock purchase program                                                  --                       867
                                                                      ------                     -----
Balance December 31, 1997                                             93,228                     6,434
  Exercise of stock options and stock appreciation rights                150                        --
  Issuance of shares for achievement awards                               --                        (3)
  Stock purchase program                                                  --                       580
                                                                      ------                     -----
Balance December 31, 1998                                             93,378                     7,011
  Exercise of stock options and stock appreciation rights                112                        --
  Issuance of restricted stock                                             4                        --
                                                                      ------                     -----
Balance December 31, 1999                                             93,494                     7,011
                                                                      ======                     =====
</TABLE>

     The  company has 40 million  shares of  preferred  stock  without par value
authorized, and none is issued.
     There are 1,107,692  shares of the company's common stock registered in the
name of a wholly owned subsidiary of the company.  These shares are not included
in the  number of shares  shown in the  preceding  table or in the  Consolidated
Balance Sheet. These shares are not entitled to be voted.
     In mid-1998, the Board of Directors authorized management to purchase up to
$300 million of company common stock over the following  three years. A total of
580,000  shares was acquired at a cost of $25 million before this stock purchase
program was cancelled  because of the merger with Oryx.  The 1995 stock purchase
program was completed in 1997 with a total of 4,829,000  shares of the company's
stock  acquired  in  open-market  transactions  at a cost of $300  million.
     The company has granted  restricted  common shares to certain key employees
under the 1998 Long-Term  Incentive Plan.  Shares are awarded in the name of the
employee,  who  has  all  the  rights  of  a  shareholder,  subject  to  certain
restrictions  on  transferability  and a  risk  of  forfeiture.  The  forfeiture
provisions on the 1999 awards expire on December 1, 2003.
     The company  has had a  stockholders-rights  plan since  1986.  The current
rights plan is dated July 6, 1996,  and replaced the previous  plan prior to its
expiration. Rights were distributed under the original plan as a dividend at the
rate of one right for each share of the company's common stock.  Generally,  the
rights  become  exercisable  the earlier of 10 days after a public  announcement
that a person or group has acquired, or a tender offer has been made for, 15% or
more of the company's  then-outstanding stock. If either of these events occurs,
each right would entitle the holder (other than a holder owning more than 15% of
the outstanding stock) to buy the number of shares of the company's common stock
having a market value two times the exercise price.  The exercise price is $215.
Generally,  the rights may be redeemed at $.01 per right until a person or group
has  acquired  15% or more of the  company's  stock.  The rights  expire in July
2006.

11. Contingencies

West Chicago
     In 1973, a wholly owned subsidiary, Kerr-McGee Chemical Corporation, closed
the facility at West Chicago,  Illinois, that processed thorium ores. Kerr-McGee
Chemical  Corporation  now  operates  as  Kerr-McGee  Chemical  LLC  (Chemical).
Operations resulted in some low-level radioactive contamination at the site and,
in 1979,  Chemical filed a plan with the Nuclear Regulatory  Commission (NRC) to
decommission the facility. The NRC transferred  jurisdiction of this site to the
State of  Illinois  (the  State) in 1990.  Following  is the  current  status of
various  matters  associated  with the West Chicago site.
     Closed  Facility - In 1994,  Chemical,  the City of West Chicago (the City)
and the State reached agreement on the initial phase of the decommissioning plan
for the closed West Chicago facility,  and Chemical began shipping material from
the site to a licensed permanent disposal facility.
     In February  1997,  Chemical  executed an agreement with the City as to the
terms and conditions for completing the final phase of decommissioning work. The
State has indicated approval of this agreement and has issued license amendments
authorizing much of the work.  Chemical expects most of the work to be completed
within four years.
     In 1992, the State enacted legislation imposing an annual storage fee equal
to $2 per cubic foot of byproduct  material located at the closed facility.  The
storage fee cannot  exceed $26 million  per year,  and any storage fee  payments
must be reimbursed to Chemical as decommissioning  costs are incurred.  Chemical
has  been  fully   reimbursed  for  all  storage  fees  paid  pursuant  to  this
legislation.  In June 1997, the  legislation  was amended to provide that future
storage fee obligations are to be offset against  decommissioning costs incurred
but not yet reimbursed.
     Offsite Areas - The U.S.  Environmental  Protection Agency (EPA) has listed
four areas in the vicinity of the West Chicago facility on the National Priority
List that the EPA promulgates under authority of the Comprehensive Environmental
Response,  Compensation,  and Liability Act of 1980 (CERCLA) and has  designated
Chemical as a potentially responsible party in these four areas. Two of the four
areas are presently being studied to determine the extent of  contamination  and
the nature of any remedy.  These two are known as the Sewage Treatment Plant and
Kress Creek. The EPA previously issued unilateral  administrative orders for the
other two areas (known as the residential  areas and Reed-Keppler  Park),  which
require Chemical to conduct removal actions to excavate  contaminated  soils and
ship the soils  elsewhere  for  disposal.  Without  waiving any of its rights or
defenses,  Chemical  is  conducting  the  cleanup  of the two  areas  for  which
unilateral  administrative orders have been issued.  Cleanup at one of the sites
is nearly complete.
     Judicial  Proceedings  - In December  1996, a lawsuit was filed against the
company and Chemical in Illinois  state court on behalf of a purported  class of
present and former West Chicago residents. The lawsuit seeks damages for alleged
diminution in property values and the establishment of a medical monitoring fund
to benefit those allegedly exposed to thorium wastes originating from the former
facility.  The  case was  removed  to  federal  court  and is  being  vigorously
defended.
     Government  Reimbursement - Pursuant to Title X of the Energy Policy Act of
1992  (Title  X),  the U. S.  Department  of Energy is  obligated  to  reimburse
Chemical for certain  decommissioning  and cleanup costs in  recognition  of the
fact that much of the  facility's  production  was dedicated  to  United  States
government  contracts.  Title  X was  amended  in 1998 to  increase  the  amount
authorized to $140 million plus inflation adjustments. Through January 31, 2000,
Chemical  has been  reimbursed  approximately  $69 million  under Title X. These
reimbursements are provided by congressional appropriations.

Other Matters
     The company's current and former operations involve management of regulated
materials and are subject to various  environmental laws and regulations.  These
laws and  regulations  will  obligate  the company to clean up various  sites at
which petroleum,  chemicals, low-level radioactive substances or other regulated
materials  have been  disposed  of or  released.  Some of these  sites have been
designated  Superfund sites by the EPA pursuant to CERCLA. The company is also a
party to legal proceedings  involving  environmental  matters pending in various
courts and agencies.  In addition,  the company and/or its subsidiaries are also
parties to a number of other  legal  proceedings  pending  in various  courts or
agencies in which the company  and/or its  subsidiaries  appear as  plaintiff or
defendant.
     The company  provides  for costs  related to  contingencies  when a loss is
probable and the amount is reasonably estimable.
     It is not  possible  for the  company to reliably  estimate  the amount and
timing of all future  expenditures  related to  environmental  and legal matters
because of:
     - the difficulty of predicting cleanup  requirements and estimating cleanup
costs;
     - the uncertainty in quantifying  liability under  environmental  laws that
impose joint and several liability on all potentially responsible parties;
     - the continually changing nature of environmental laws and regulations and
the uncertainty inherent in legal matters.
     As of December 31, 1999,  the company has recorded  reserves  totaling $204
million for cleaning up and  remediating  environmental  sites,  reflecting  the
reasonably  estimable  costs for  addressing  these sites.  This  includes  $125
million for the West Chicago sites. Management believes, after consultation with
general  counsel,  that  currently  the  company  has  reserved  adequately  for
contingencies.  However, additions to the reserves may be required as additional
information  is  obtained  that  enables  the  company  to better  estimate  its
liability, including any liability at sites now being studied, though management
cannot now reliably estimate the amount of any future additions to the reserves.
Historical  expenditures at all sites from inception  through December 31, 1999,
total $670 million.

12. Income Taxes

     The taxation of a company that has operations in several countries involves
many complex variables, such as differing tax structures from country to country
and the effect on U.S. taxation of international earnings. These complexities do
not permit meaningful comparisons between the U.S. and international  components
of  income  before  income  taxes  and  the  provision  for  income  taxes,  and
disclosures  of  these  components  do  not  provide   reliable   indicators  of
relationships in future periods. Income (loss) from continuing operations before
income taxes and extraordinary charge is composed of the following:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
United States                                          $(30)  $(345)   $252
International                                           287    (175)    283
                                                       ----    ----    ----
  Total                                                $257   $(520)   $535
                                                       ====   =====    ====

     The  corporate  tax rate in the United  Kingdom  decreased  to 30% from 31%
effective  April 1, 1999, and decreased to 31% from 33% effective April 1, 1997.
The  deferred  income tax  liability balance was adjusted to reflect the revised
rates, which decreased the international  deferred provision for income taxes by
$10  million in 1998 and $13 million in 1997.  The 1999,  1998 and 1997 taxes on
income from continuing  operations are summarized  below:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
U.S. Federal -
  Current                                              $(38)  $(159)   $  2
  Deferred                                               38      20      84
                                                       ----   -----    ----
                                                         --    (139)     86
                                                       ----   -----    ----
International -
  Current                                               147      18     146
  Deferred                                              (37)    (55)    (52)
                                                       ----   -----    ----
                                                        110     (37)     94
                                                       ----   -----    ----

State                                                     1       1       4
                                                       ----   -----    ----
    Total                                              $111   $(175)   $184
                                                       ====   =====    ====
     At December 31, 1999, the company had foreign operating loss  carryforwards
totaling  $117 million - $9 million that expire in 2001,  $8 million that expire
in 2003, $15 million that expire in 2004 and $85 million that have no expiration
date.  Realization  of  these  operating  loss  carryforwards  is  dependent  on
generating sufficient taxable income.
     The net deferred tax asset, classified as Investments - Other assets in the
Consolidated Balance Sheet, represents the net deferred taxes in certain foreign
jurisdictions.  Although  realization is not assured, the company believes it is
more likely than not that all of the net  deferred  tax asset will be  realized.
Deferred tax  liabilities and assets at December 31, 1999 and 1998, are composed
of the following:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Net deferred tax liabilities -
  Accelerated depreciation                             $564    $593
  Exploration and development                            34      69
  Undistributed earnings of foreign subsidiaries         28      28
  Postretirement benefits                               (86)    (86)
  AMT credit carryforward                               (60)    (60)
  Foreign operating loss carryforward                   (35)    (28)
  Dismantlement, remediation, restoration
    and other reserves                                  (30)    (79)
  Other                                                 (14)   (108)
                                                       ----    ----
                                                        401     329
                                                       ----    ----
Net deferred tax asset -
  Accelerated depreciation                                5       5
  Foreign operating loss carryforward                   (13)    (14)
  Other                                                  (4)     (8)
                                                       ----    ----
                                                        (12)    (17)
                                                       ----    ----
    Total                                              $389    $312
                                                       ====    ====

     In the following  table,  the U.S. Federal income tax rate is reconciled to
the company's  effective tax rates for income (loss) from continuing  operations
as reflected in the Consolidated Statement of Income.

                                                       1999    1998    1997
                                                       ----    ----    ----
U.S. statutory rate                                    35.0%  (35.0)%  35.0%
  Increases (decreases) resulting from -
    Taxation of foreign operations                      4.8     9.6     3.9
    Adjustment of prior years' accruals                  --     (.4)    (.8)
    Refunds of prior years' income taxes                 --    (5.6)     --
    Adjustment of deferred tax balances
      due to tax rate changes                            --    (2.0)   (2.4)
    Other - net                                         3.3     (.2)   (1.3)
                                                       ----   -----    ----
        Total                                          43.1%  (33.6)%  34.4%
                                                       ====   =====    ====

     The Internal  Revenue  Service has examined the Kerr-McGee  Corporation and
subsidiaries'  pre-merger Federal income tax returns for all years through 1994,
and the years have been closed  through  1994.  The Oryx income tax returns have
been examined  through 1997,  and the years have been closed  through 1978.  The
company  believes that it has made adequate  provision for income taxes that may
become payable with respect to open tax years.

13. Taxes, Other than Income Taxes

     Taxes,  other than income taxes, as shown in the Consolidated  Statement of
Income for the years ended December 31, 1999, 1998 and 1997, are composed of the
following:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Production/severance                                    $52     $26    $ 74
Payroll                                                  19      12      11
Property                                                 11      14      15
Other                                                     3       1       3
                                                        ---     ---    ----
  Total                                                 $85     $53    $103
                                                        ===     ===    ====

14. Deferred Credits and Reserves - Other

     Other  deferred  credits and reserves  consist of the following at year-end
1999 and 1998:

(Millions of dollars)                                  1999    1998
- ---------------------                                  ----    ----
Reserves for site dismantlement,
  remediation and restoration                          $391    $376
Postretirement benefit obligations                      186     269
Minority interest in subsidiary companies                23      39
Other                                                    70      64
                                                       ----    ----
  Total                                                $670    $748
                                                       ====    ====

     The company  provided for  environmental  remediation  and  restoration  of
former plant sites, net of authorized  reimbursements,  during each of the years
1999, 1998 and 1997 as follows:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Provision, net of authorized reimbursements             $ 3     $47     $18
Reimbursements received                                  15      14      12
Reimbursements accrued                                   67      --      --

     The  reimbursements,  which pertain to the former facility in West Chicago,
Illinois,  are  authorized  pursuant to Title X of the Energy Policy Act of 1992
(see Note 11).

15. Discontinued Operations

     The company  exited the coal  business in 1998 with the sales of its mining
operations at Galatia,  Illinois,  and Kerr-McGee Coal  Corporation,  which held
Jacobs  Ranch  Mine  in  Wyoming.   The  cash  sales  resulted  in  proceeds  of
approximately  $600 million.  The 1998 gain on the sale was $257 million  ($2.97
per share),  net of $149 million for income taxes. The income from operations of
the discontinued  coal business totaled $20 million ($.23 per share),  net of $7
million for income taxes,  in 1998 and $33 million ($.38 per share),  net of $12
million  in income  taxes,  in 1997.  Revenues  applicable  to the  discontinued
operations totaled $174 million in 1998 and $323 million in 1997.

16. Other Income

     Other  income was as  follows  during  each of the years in the  three-year
period ended December 31, 1999:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Income (loss) from unconsolidated affiliates            $16    $(12)    $32
Interest                                                 14      38      14
Gain (loss) on foreign currency exchange                 11      (2)      1
Gain on sale of assets                                    3       7       6
Settlements with insurance carriers                      --      12      12
Gain on sale of available-for-sale securities            --      --      18
Other                                                    (4)     --      (1)
                                                        ---    ----     ---
  Total                                                 $40    $ 43     $82
                                                        ===    ====     ===

17. Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of

Assets to Be Held and Used
     At  year-end  1998,  certain  oil and gas fields  located in the North Sea,
China and the  United  States and two U.S.  chemical  plants  were  deemed to be
impaired  because the assets were no longer  expected to recover  their net book
values through future cash flows.  Expectations  of future cash flows were lower
than those previously forecasted primarily as a result of weakness in crude oil,
natural gas and certain  chemical  product  prices at the end of 1998.  Downward
reserve revisions were also deemed necessary for certain fields.  The impairment
loss was determined  based on the  difference  between the carrying value of the
assets  and the  present  value of  future  cash  flows or  market  value,  when
appropriate. There was no impairment loss recognized in 1999 or 1997.
     Following  is the  impairment  loss for assets held and used by segment for
the year ended December 31, 1998:

(Millions of dollars)                                  1998
- ---------------------                                  ----
Exploration and production                             $389
Chemicals - pigment                                      32
Chemicals - other                                        25
                                                       ----
  Total                                                $446
                                                       ====

Assets to Be Disposed Of
     The company  withdrew from the ammonium  perchlorate  business in 1998. The
carrying  value of these assets was  approximately  $9 million.  The gain on the
sale was  immaterial.
     During 1997,  the  company's  exploration  and  production  operating  unit
completed a program to divest a number of crude oil and  natural  gas  producing
properties considered to be nonstrategic.  Most of these properties were located
onshore in the United States;  however, some were located in the Gulf of Mexico,
Canada  and the North  Sea.  Net  gains  recognized  on the sales of  properties
included in the divestiture  program totaled $6 million in 1997. The divestiture
program  properties did not  constitute a material  portion of the company's oil
and gas  production or cash flows from  operations  for 1997.
     Following  are the sales and pretax  income  included  in the  Consolidated
Statement of Income in 1998 and 1997 for assets sold during the two-year  period
ended December 31, 1998.  Any  impairment  loss is included in the pretax income
amounts.  The company had no material  assets held for disposal at year-end 1999
or 1998.

(Millions of dollars)                                  1998    1997
Sales -
  Chemicals - other                                     $11     $30

Income -
  Chemicals - other                                      --       3

18. Financial Instruments and Hedging Activities

Investments in Certain Debt and Equity Securities
     The company has certain investments that are considered to be available for
sale. The company also has debt that is exchangeable  into equity  securities of
an investee that are considered available for sale. These financial  instruments
are carried in the Consolidated  Balance Sheet at fair value,  which is based on
quoted  market  prices.  The company  had no  securities  classified  as held to
maturity or trading at  December  31,  1999 and 1998.  At December  31, 1999 and
1998,  available-for-sale  securities for which fair value can be determined are
as follows:
<TABLE>
<CAPTION>

                                                           1999                               1998
                                              -----------------------------     -----------------------------
                                                                      Gross                             Gross
                                               Fair              Unrealized      Fair              Unrealized
                                              Value   Cost    Holding Gains     Value   Cost    Holding Gains
                                              -----   ----    -------------     -----   ----    -------------
<S>                                           <C>     <C>              <C>        <C>    <C>              <C>
Equity securities                             $327    $209             $118       $--    $--              $--
U.S. government obligations -
  Maturing within one year                       5       5               --        13     13               --
  Maturing between one year and four years      11      11               --        17     17               --
Exchangeable debt                              327     330                3        --     --               --
                                                                       ----                               ---
    Total                                                              $121                               $--
                                                                       ====                               ===
</TABLE>

     The equity  securities  represent the company's  investment in Devon common
stock that is no longer accounted for under the equity method of accounting (see
Note 5).  The  securities  are  carried  in the  Consolidated  Balance  Sheet as
Investments - Other assets. U.S.  government  obligations are carried as Current
Assets or as  Investments - Other  assets,  depending on their  maturities.
     The  exchangeable  debt represents  5-1/2% notes  exchangeable  into common
stock (DECS) of Devon held by the company. The notes are due August 2, 2004, and
holders of the notes will receive  between  .84746 and one common share of Devon
per DECS, depending on the average trading price of Devon's common stock at that
time, or the cash equivalent of such common stock.  The DECS are carried at fair
value in the Consolidated Balance Sheet as Long-Term Debt (see Note 8).
     The change in unrealized  holding gains,  net of income taxes,  as shown in
accumulated  other  comprehensive  income for the years ended December 31, 1999,
1998 and 1997, is as follows:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                  ----    ----    ----
Beginning balance -                                     $--     $--     $12
  Net unrealized holding gains                           79      --       2
  Net realized gains                                     --      --     (12)
  Net appreciation of donated securities                 --      --      (2)
                                                        ---     ---     ---
Ending balance                                          $79     $--     $--
                                                        ===     ===     ===

     During  1997,  the  company  sold  available-for-sale   equity  securities.
Proceeds  from the sales  totaled $21 million in 1997.  The average  cost of the
securities was used in the  determination  of the realized gains,  which totaled
$18 million before income taxes in 1997. Also during 1997, the company donated a
portion of its  available-for-sale  equity  securities to Kerr-McGee  Foundation
Corporation,   a  tax-exempt   entity  whose   purpose  is  to   contribute   to
not-for-profit organizations.  The fair value of these donated shares totaled $3
million in 1997, which included  appreciation of $3 million before income taxes.

Financial Instruments for Other than Trading Purposes
     In addition to the financial instruments previously discussed,  the company
holds or issues  financial  instruments  for other  than  trading  purposes.  At
December 31, 1999 and 1998,  the  carrying  amount and  estimated  fair value of
these  instruments  for which fair value can be determined are as follows:
<TABLE>
<CAPTION>

                                                          1999                   1998
                                                --------------------    --------------------
                                                Carrying        Fair    Carrying        Fair
(Millions of dollars)                             Amount       Value      Amount       Value
- ---------------------                           --------       -----    --------       -----
<S>                                               <C>         <C>         <C>         <C>
Cash and cash equivalents                         $  267      $  267      $  121      $  121
Long-term notes receivable                            26          23           9           9
Long-term receivables                                 72          60          --          --
Contracts to sell foreign currencies                  --           5          --           2
Contracts to purchase foreign currencies              --          98          --         111
Oil and gas price hedging contracts                   --          --           7          22
Short-term borrowings                                  9           9          36          36
Long-term debt, excluding DECS                     2,189       2,228       2,214       2,365
</TABLE>

     The carrying amount of cash and cash equivalents approximates fair value of
those  instruments  due to  their  short  maturity.  The  fair  value  of  notes
receivable  is based on  discounted  cash  flows or the fair value of the note's
collateral.  The fair value of long-term receivables is based on discounted cash
flows. The fair value of the company's short-term and long-term debt is based on
the quoted  market  prices for the same or similar debt issues or on the current
rates offered to the company for debt with the same remaining maturity. The fair
value of foreign currency forward contracts represents the aggregate replacement
cost based on financial institutions' quotes.

Hedging Activities
     Most of the company's foreign currency contracts are hedges principally for
chemical's  accounts  receivable  generated from titanium  dioxide pigment sales
denominated in foreign currencies,  the operating costs and capital expenditures
of  international  pigment  operations,  and the  operating  costs  and  capital
expenditures  of U.K.  oil and gas  operations.  The  purpose  of these  foreign
currency  hedging  activities  is to protect the company  from the risk that the
functional  currency amounts from sales to foreign  customers and purchases from
foreign  suppliers  could be adversely  affected by changes in foreign  currency
exchange rates. The company recognized net foreign currency hedging losses of $5
million in 1999 and net foreign  currency  hedging  gains of $4 million in 1997.
The net foreign  currency  hedging loss recognized in 1998 was  immaterial.
     Net unrealized  gains on foreign currency  contracts  totaled $2 million at
year-end 1999. Net unrealized  losses on foreign currency  contracts  totaled $7
million at year-end 1998 and $13 million at year-end 1997. The company's foreign
currency contract positions at year-end 1999 and 1998 were as follows:

December 31, 1999 -
     - Contracts  maturing  January 2000 through  December 2002 to purchase $150
million  Australian for $96 million
     - Contracts  maturing  January  through March 2000 to sell various  foreign
currencies (principally European) for $5 million

December 31, 1998 -
     - Contracts  maturing  January 1999 through  December 2000 to purchase $113
million Australian for $77 million and 25 million British pound sterling for $40
million
     - Contracts  maturing  January  through March 1999 to sell various  foreign
currencies  (principally  European) for $2 million

     The  company  has  periodically  used oil or natural  gas futures or collar
contracts to reduce the effect of the price  volatility of crude oil and natural
gas. The futures contracts permitted settlement by delivery of commodities.
     The company did not enter into any hedging arrangements in 1999 and settled
all open 1998 contracts  during the year.  Net hedging gains  recognized in 1999
totaled $28 million.  The effect of the gains was to increase the company's 1999
average  gross  margin for crude oil and natural gas by $.11 per barrel and $.09
per  MCF,   respectively.
     During 1998, the company  entered into hedging  arrangements  for 7 million
barrels of crude oil and 61  billion  cubic  feet of  natural  gas  representing
approximately  11% and 29% of its  worldwide  crude  oil and  natural  gas sales
volumes, respectively. Net hedging gains recognized in 1998 totaled $45 million.
The effect of the gains was to increase the company's  1998 average gross margin
for crude oil and natural gas by $.55 per barrel and $.05 per MCF, respectively.
At year-end  1998,  open crude oil and natural gas  contracts  had an  aggregate
value of $7 million,  and the  unrecognized  gain on the  contracts  totaled $15
million.
     During 1997, the company entered into hedging  arrangements  for 12 million
barrels of crude oil and 75  billion  cubic  feet of  natural  gas  representing
approximately  18% and 30% of its  worldwide  crude  oil and  natural  gas sales
volumes,  respectively.  Net  hedging  losses  recognized  in 1997  totaled  $27
million. The effect of the losses was to reduce the company's 1997 average gross
margin  for  crude  oil and  natural  gas by $.10 per  barrel  and $.08 per MCF,
respectively.  At year-end 1997, open crude oil and natural gas contracts had an
aggregate  value of $2 million,  and the  unrecognized  loss on these  contracts
totaled $7 million.
     Contract amounts do not quantify risk or represent assets or liabilities of
the  company  but are used in the  calculation  of cash  settlements  under  the
contracts.  These financial  instruments  limit the company's  market risks, are
with major  financial  institutions,  expose the company to credit  risks and at
times may be concentrated  with certain  institutions or groups of institutions.
However,  the credit  worthiness of these  institutions is subject to continuing
review, and full performance is anticipated.  Additional  information  regarding
market risk is included in Management's Discussion and Analysis.
     Year-end hedge  positions and activities  during a particular  year are not
necessarily indicative of future activities and results

19. Employee Benefit Plans

     The  company  has both  noncontributory  and  contributory  defined-benefit
retirement plans and  company-sponsored  contributory  postretirement  plans for
health care and life  insurance.  Most employees are covered under the company's
retirement plans, and  substantially all U.S.  employees may become eligible for
the  postretirement  benefits if they reach retirement age while working for the
company.  Following are the changes in the benefit  obligations  during the past
two years:

<TABLE>
<CAPTION>

                                                                                        Postretirement Health
                                                                    Retirement Plans        and Life Plans
                                                                  ------------------    ---------------------
(Millions of dollars)                                               1999        1998      1999         1998
- ---------------------                                             ------      ------      ----         ----
<S>                                                               <C>         <C>         <C>          <C>
Benefit obligation, beginning of year                             $1,027      $  976      $217         $209
  Service cost                                                        15          16         1            3
  Interest cost                                                       69          66         9           13
  Plan amendments                                                     70          38         4            1
  Net actuarial loss (gain)                                          (15)         15        (2)           8
  Acquisitions                                                        --           6        --           --
  Assumption changes                                                 (50)         --        --           --
  Changes resulting from plan mergers                                 14          --        (7)          --
  Dispositions, curtailments, settlements                             21           5        --           (2)
  Benefits paid                                                     (174)        (95)       (7)         (15)
                                                                  ------         ---      ----         ----
Benefit obligation, end of year                                   $  977      $1,027      $215         $217
                                                                  ======      ======      ====         ====
</TABLE>

     The benefit amount that can be covered by the retirement plans that qualify
under the Employee  Retirement Income Security Act of 1974 (ERISA) is limited by
both ERISA and the Internal  Revenue Code.  Therefore,  the company has unfunded
supplemental  plans designed to maintain  benefits for all employees at the plan
formula  level  and to  provide  senior  executives  with  benefits  equal  to a
specified percentage of their final average compensation. The benefit obligation
for the unfunded  retirement  plans was $42 million and $109 million at December
31, 1999 and 1998, respectively.  Although not considered plan assets, a grantor
trust was  established  from which  payments  for certain of these  supplemental
plans are made.  The trust had a balance of $5 million at year-end  1999 and $10
million at year-end 1998. The postretirement plans are also unfunded.
     Following  are the changes in the fair value of plan assets during the past
two years and the  reconciliation  of the plans'  funded  status to the  amounts
recognized in the financial statements at December 31, 1999 and 1998:
<TABLE>
<CAPTION>


                                                                                        Postretirement Health
                                                                    Retirement Plans        and Life Plans
                                                                  ------------------    ---------------------
(Millions of dollars)                                               1999        1998      1999         1998
- ---------------------                                             ------      ------     -----        -----
<S>                                                               <C>         <C>        <C>          <C>
Fair value of plan assets, beginning of year                      $1,404      $1,138     $  --        $  --
  Actual return on plan assets                                       381         351        --           --
  Employer contribution                                               35          10        --           --
  Changes resulting from plan mergers                                  7          --        --           --
  Benefits paid                                                     (174)        (95)       --           --
                                                                  ------      ------     -----        -----
Fair value of plan assets, end of year                             1,653       1,404        --           --
Benefit obligation                                                  (977)     (1,027)     (215)        (217)
                                                                  ------      ------     -----        -----

Funded status of plans - over (under)                                676         377      (215)        (217)
  Amounts not recognized in the Consolidated Balance Sheet-
    Transition asset                                                  (6)        (13)       --           --
    Prior service costs                                               86          33         5           --
    Net actuarial loss (gain)                                       (704)       (366)       11           18
                                                                  ------      ------     -----        -----
Prepaid expense (accrued liability)                               $   52      $   31     $(199)       $(199)
                                                                  ======      ======     =====        =====
</TABLE>

     Following  is  the   classification  of  the  amounts   recognized  in  the
Consolidated Balance Sheet at December 31, 1999 and 1998:
<TABLE>
<CAPTION>


                                                                                        Postretirement Health
                                                                    Retirement Plans        and Life Plans
                                                                    ----------------    ---------------------
(Millions of dollars)                                               1999        1998      1999         1998
- ---------------------                                               ----       -----     -----        -----
<S>                                                                 <C>        <C>       <C>          <C>
Prepaid benefits expense                                            $ 79       $ 102     $  --        $  --
Accrued benefit liability                                            (39)       (109)     (199)        (199)
Additional minimum liability -
  Intangible asset                                                     6           7        --           --
  Accumulated other comprehensive income                               6          31        --           --
                                                                    ----       -----     -----        -----
    Total                                                           $ 52       $  31     $(199)       $(199)
                                                                    ====       =====     =====        =====
</TABLE>

     Total costs recognized for employee  retirement and postretirement  benefit
plans for each of the  years  ended  December  31,  1999,  1998 and 1997 were as
follows:
<TABLE>
<CAPTION>


                                                           Retirement Plans        Postretirement Health and Life Plans
                                                           ----------------        ------------------------------------
(Millions of dollars)                                    1999    1998    1997             1999    1998    1997
- ---------------------                                    ----    ----    ----             ----    ----    ----
<S>                                                      <C>     <C>     <C>               <C>     <C>     <C>
Net periodic cost -
  Service cost                                           $ 15    $ 16    $ 15              $ 1     $ 3     $ 2
  Interest cost                                            69      66      64                9      13      15
  Expected return on plan assets                          (98)    (94)    (84)              --      --      --
  Net amortization -
    Transition asset                                       (6)     (8)     (8)              --      --      --
    Prior service cost                                     12       3       2               --      --      --
    Net actuarial loss (gain)                              (3)      1       1               --      (1)     --
                                                         ----    ----    ----              ---     ---     ---
                                                          (11)    (16)    (10)              10      15      17
Dispositions, curtailments, settlements                    29      26       6               --      (1)     --
                                                         ----    ----    ----              ---     ---     ---
      Total                                              $ 18    $ 10    $ (4)             $10     $14     $17
                                                         ====    ====    ====              ===     ===     ===
</TABLE>


     The following  assumptions  were used in estimating  the actuarial  present
value of the plans' benefit obligations and net periodic expense:

                                                  1999       1998       1997
                                             ---------    -------    -------
Discount rate                                5.50-7.75%      6.75%   6.5-7.0%
Expected return on plan assets               6.25-9.5     9.0-9.5    9.0-9.5
Rate of compensation increases                3.0-5.0     4.0-5.0    4.0-5.0

     The  health  care cost trend  rates used to  determine  the  year-end  1999
postretirement  benefit obligation were 7.5% in 2000,  gradually declining to 5%
in the year 2010 and  thereafter.  A 1% increase in the assumed health care cost
trend  rate for each  future  year would  increase  the  postretirement  benefit
obligation  at December 31, 1999,  by $14 million and increase the  aggregate of
the service and interest cost components of net periodic  postretirement expense
for 1999 by $1  million.  A 1%  decrease  in the trend rate for each future year
would reduce the benefit obligation at year-end 1999 by $14 million.  It was not
practical  to  calculate  the effect of the  percent  decrease  on net  periodic
expense in the health care cost trend rate.

20. Employee Stock Ownership Plan

     In 1989,  the company's  Board of Directors  approved a leveraged  Employee
Stock  Ownership  Plan  (ESOP)  into  which  is  paid  the  company's   matching
contribution  for the employees'  contributions  to the  Kerr-McGee  Corporation
Savings Investment Plan (SIP).  Most of the company's  employees are eligible to
participate  in both the ESOP  and the  SIP.  Although  the ESOP and the SIP are
separate  plans,  matching   contributions  to  the  ESOP  are  contingent  upon
participants' contributions to the SIP.
     In 1989,  the ESOP  trust  borrowed  $125  million  from a group of lending
institutions and used the proceeds to purchase approximately 3 million shares of
the company's treasury stock. The company used the $125 million in proceeds from
the sale of the stock to acquire shares of its common stock in  open-market  and
privately  negotiated  transactions.  In  1996,  a  portion  of the  third-party
borrowings was replaced with a note payable to the company (sponsor  financing).
The  third-party  borrowings  are guaranteed by the company and are reflected in
the Consolidated  Balance Sheet as Long-Term Debt,  while the sponsor  financing
does not appear in the company's balance sheet.
     The Oryx  Capital  Accumulation  Plan (CAP) was a combined  stock bonus and
leveraged  employee stock  ownership plan  available to  substantially  all U.S.
employees  of the former  Oryx  operations.  On August 1, 1989,  Oryx  privately
placed $110 million of notes  pursuant to the provisions of the CAP. Oryx loaned
the proceeds to the CAP, which used the funds to purchase Oryx common stock that
was placed in a trust.  This loan was sponsor  financing  and does not appear in
the accompanying balance sheet.
     During  1999,  the company  merged the Oryx CAP into the ESOP and SIP. As a
result,  a total of 159,000 and 294,000 shares was transferred from the CAP into
the ESOP and SIP,  respectively.  The  company  stock owned by the ESOP trust is
held  in a  loan  suspense  account.  Deferred  compensation,  representing  the
unallocated ESOP shares,  is reflected as a reduction of  stockholders'  equity.
The  company's  matching  contribution  and dividends on  the shares held by the
ESOP  trust  are used to repay the loan,  and  stock is  released  from the loan
suspense  account  as the  principal  and  interest  are paid.  The  expense  is
recognized and stock is then allocated to participants' accounts at market value
as the  participants'  contributions  are  made to the  SIP.  Long-term  debt is
reduced as payments are made on the third-party financing. Dividends paid on the
common  stock held in  participants'  accounts are also used to repay the loans,
and stock with a market  value equal to the amount of  dividends is allocated to
participants' accounts.
     Shares of stock  allocated  to the ESOP  participants'  accounts and in the
loan suspense account are as follows:

 (Thousands of shares)                                 1999    1998
 ---------------------                                -----   -----
 Participants' accounts                               1,357   1,398
 Loan suspense account                                1,380   1,610

     The shares  allocated to ESOP  participants at December 31, 1999,  included
approximately  51,000 shares released in January 2000, and at December 31, 1998,
included approximately 52,000 shares released in January 1999.
     All  ESOP  shares  are  considered  outstanding  for net  income  per-share
calculations. Dividends on ESOP shares are charged to retained earnings.
     Compensation expense is recognized using the cost method and is reduced for
dividends paid on the unallocated ESOP shares.  The company  recognized ESOP and
CAP-related  expense of $14 million,  $17 million and $13 million in 1999,  1998
and 1997,  respectively.  These amounts include interest expense incurred on the
third-party  ESOP debt of $4  million  in 1999 and $5  million  in both 1998 and
1997. The company  contributed  $18 million,  $16 million and $12 million to the
ESOP and CAP in 1999, 1998 and 1997,  respectively.  The cash  contributions are
net of $4 million for the  dividends  paid on the company stock held by the ESOP
trust in each of the years 1999, 1998 and 1997.

21. Employee Stock Option Plans

     The 1998 Long Term  Incentive  Plan (1998 Plan)  authorizes the issuance of
shares of the company's common stock any time prior to December 31, 2007, in the
form of stock options,  restricted stock or long-term  performance  awards.  The
options may be accompanied by stock  appreciation  rights.  A total of 2,300,000
shares of the  company's  common stock is authorized to be issued under the 1998
Plan.
     In January 1998, the Board of Directors approved a broad-based stock option
plan (BSOP) that  provides for the granting of options to purchase the company's
common stock to all full-time  employees,  except officers. A total of 1,500,000
shares of common stock is authorized to be issued under the BSOP.
     The 1987 Long Term Incentive Program (1987 Program) authorized the issuance
of  shares of the  company's  stock  over a 15-year  period in the form of stock
options,  restricted stock or long-term performance awards. The 1987 Program was
terminated  when the  stockholders  approved the 1998 Plan.  No options could be
granted  under the 1987  Program  after  that  time,  although  options  and any
accompanying  stock  appreciation  rights  outstanding may be exercised prior to
their respective expiration dates.
     The company's employee stock options are fixed-price options granted at the
fair  market  value of the  underlying  common  stock on the date of the  grant.
Generally,  one-third  of  each  grant  vests  and  becomes  exercisable  over a
three-year  period  immediately  following  the grant date and  expires 10 years
after the grant date.

     In  connection  with the merger with Oryx (see Note 1),  outstanding  stock
options  under the stock  option  plans  maintained  by Oryx were assumed by the
company. Stock option transactions summarized below include amounts for the 1998
Plan,  the BSOP,  the 1987 Program and the Oryx plans using the merger  exchange
rate of 0.369 for each Oryx share under option.
<TABLE>
<CAPTION>


                                                   1999                          1998                           1997
                                       --------------------------   ---------------------------    ---------------------------
                                                 Weighted-Average              Weighted-Average               Weighted-Average
                                                   Exercise Price                Exercise Price                 Exercise Price
                                        Options        per Option     Options        per Option      Options        per Option
                                      ---------  ----------------   ---------  ----------------    ---------  ----------------
<S>                                   <C>                  <C>      <C>                  <C>       <C>                  <C>
Outstanding, beginning of year        2,783,482            $58.77   2,050,671            $56.84    2,241,136            $54.06
  Options granted                       377,000             46.53   1,105,043             61.97      481,213             68.04
  Options exercised                    (110,521)            42.20    (127,576)            44.34     (580,605)            50.49
  Options surrendered upon exercise
    of stock appreciation rights        (14,000)            45.25      (4,000)            38.06       (5,000)            32.38
  Options forfeited                     (45,929)            60.73     (24,928)            60.26       (6,703)            57.46
  Options expired                      (166,698)            72.95    (215,728)            65.65      (79,370)            93.43
                                      ---------                     ---------                      ---------
Outstanding, end of year              2,823,334             56.78   2,783,482             58.77    2,050,671             56.84
                                      =========                     =========                      =========

Exercisable, end of year              2,003,138             57.63   1,497,753             55.38    1,249,055             53.96
                                      =========                     =========                      =========
</TABLE>

     The following table summarizes information about stock options issued under
the plans  described  above that are outstanding and exercisable at December 31,
1999:
<TABLE>
<CAPTION>

                                Options Outstanding                           Options Exercisable
- ----------------------------------------------------------------------    ----------------------------
                 Range of       Weighted-Average      Weighted-Average                Weighted-Average
          Exercise Prices  Remaining Contractual        Exercise Price                  Exercise Price
  Options      per Option           Life (years)            per Option      Options         per Option
- --------- ---------------  ---------------------      ----------------    ---------   ----------------
<S>       <C>     <C>                        <C>               <C>        <C>                  <C>
  142,883 $ 30.00-$ 39.99                    2.8               $ 35.01      142,883            $ 35.01
  625,172   40.00-  49.99                    5.0                 43.98      430,172              45.69
1,035,573   50.00-  59.99                    7.1                 57.00      499,851              56.33
  803,023   60.00-  69.99                    4.7                 65.87      752,886              65.93
  212,639   70.00-  79.99                    5.0                 72.69      173,302              72.51
    2,679   90.00-  99.99                     .9                 97.56        2,679              97.56
    1,365  110.00- 120.00                     .1                119.58        1,365             119.58
- ---------                                                                 ---------
2,823,334   30.00- 120.00                    5.5                 56.78    2,003,138              57.63
=========                                                                 =========
</TABLE>

     Statement of Financial Accounting Standards (SFAS) No. 123, "Accounting for
Stock-Based  Compensation,"  prescribes a fair-value  method of  accounting  for
employee stock options under which compensation expense is measured based on the
estimated fair value of stock options at the grant date and recognized  over the
period that the options vest. The company,  however,  chooses to account for its
stock  option  plans under the  optional  intrinsic  value method of APB No. 25,
"Accounting for Stock Issued to Employees,"  whereby no compensation  expense is
recognized  for  fixed-price   stock  options.   Compensation   cost  for  stock
appreciation  rights,  which is recognized  under both accounting  methods,  was
immaterial for 1999, 1998 and 1997.
     Had  compensation  expense been determined in accordance with SFAS No. 123,
the resulting  compensation expense would have affected net income and per-share
amounts as shown in the following table. These amounts may not be representative
of future  compensation  expense using the  fair-value  method of accounting for
employee stock options as the number of options granted in a particular year may
not be  indicative  of the number of options  granted in future  years,  and the
fair-value method of accounting has not been applied to options granted prior to
January 1, 1995.

(Millions of dollars, except per-share amounts)        1999    1998    1997
- -----------------------------------------------        ----    ----    ----
Net income (loss) -
  As reported                                          $142    $(68)   $382
  Pro forma                                             136     (76)    376

Net income (loss) per share -
  Basic -
    As reported                                        1.64    (.78)   4.40
    Pro forma                                          1.57    (.88)   4.34
  Diluted -
    As reported                                        1.64    (.78)   4.38
    Pro forma                                          1.57    (.88)   4.32

     The fair value of each option granted in 1999,  1998 and 1997 was estimated
as of the date of grant using the  Black-Scholes  option  pricing model with the
following  weighted-average  assumptions.  The use of ranges in prior  years was
necessitated by the Oryx merger.
<TABLE>
<CAPTION>

                                        Assumptions
            -------------------------------------------------------------------
                                                                                   Weighted Average
                Risk-Free         Expected        Expected Life       Expected        Fair Value of
            Interest Rate   Dividend Yield              (years)     Volatility      Options Granted
            -------------   --------------        -------------    -----------     ----------------
<S>             <C>   <C>          <C> <C>             <C>  <C>    <C>    <C>         <C>    <C>
1999                  5.4%             3.1%                 5.8           25.2%              $11.33
1998            5.0 - 5.4          0 - 3.0             5.8 - 10    17.3 - 30.3        $9.78 - 11.20
1997            6.3 - 7.0          0 - 3.1             5.8 - 10    17.5 - 30.8        11.65 - 14.37
</TABLE>

22. Merger and Restructuring Charges

     In 1999,  the  company  recorded  an  accrual  of $163  million  for  items
associated with the Oryx merger. Included in this charge were transaction costs,
severance and other  employee-related  costs,  contract termination costs, lease
cancellations,   write-off  of  redundant   systems  and   equipment  and  other
merger-related  costs. The merger resulted in approximately  550 employees being
terminated during 1999 under an involuntary termination program.
     Oryx  initiated  a  voluntary  severance  program  in  1998,  prior  to the
agreement to merge with Kerr-McGee,  for its U.S.  operations.  The company also
completed a work process review during 1998 which resulted in the elimination of
nonessential   work  processes,   organizational   restructuring   and  employee
reductions in both the operating and staff units.  The programs  resulted in the
notification  of  approximately  260  employees  that their  positions  would be
eliminated.
     During the three-year period ended December 31, 1999, the company accrued a
total of $206 million for the cost of special termination  benefits for retiring
employees  to  be  paid  from  retirement  plan  assets,   future  compensation,
relocation,  transaction  costs related to the merger,  lease  cancellation  and
outplacement.
     The merger  reserve at December  31,  1999,  includes $16 million for costs
associated with an office lease  obligation that has no economic  benefit to the
company but will be paid through the cancellation date in 2001 and the remaining
severance costs, which are expected to be paid and charged to the reserve during
2000. The accruals, expenditures and reserve balances are set forth below:


                                           Merger              Restructuring
                                          Reserve                    Reserve
                                          -------              -------------
(Millions of dollars)                      1999                 1999    1998
- ---------------------                     -------               ----    ----

Beginning balance                         $  --                 $ 20    $ 12
  Accruals                                  163                    1      40
  Benefits to be paid from
    employee benefit plans                  (31)                  --     (23)
  Payments                                 (126)                 (15)     (9)
  Transfer to merger reserve from
    restructuring reserve and
    other accrued liabilities(1)             14                   (6)     --
                                          -----                 ----    ----
Ending balance                            $  20                 $ --    $ 20
                                          =====                 ====    ====

(1)  In  a   prior   Oryx   reduction   in  force,  a  $6  million  reserve  was
     established for lease cancellation costs on a portion of the Dallas, Texas,
     office space.    Additionally,  Oryx had planned to cancel the remainder of
     the lease and had  established  an accrued  liability of $8 million.  These
     liabilities  were  combined with the 1999 merger  reserve since  Kerr-McGee
     also plans to cancel the lease at the date of the first option to cancel.

23. Merger with Oryx Energy Company

     On February 26, 1999, the merger between Kerr-McGee and Oryx was completed.
The following table provides a reconciliation of sales reported by Kerr-McGee to
the combined amounts presented in the Consolidated Statement of Income:

(Millions of dollars)                                  1999    1998    1997
- ---------------------                                ------  ------  ------
Sales -
  Pre-Merger -
    Kerr-McGee                                       $  199  $1,396  $1,388
    Oryx                                                103     820   1,197
  Merger reclassifications                               --     (16)     20
  Post-Merger                                         2,394      --      --
                                                     ------  ------  ------
      Total                                          $2,696  $2,200  $2,605
                                                     ======  ======  ======

     Merger reclassifications primarily represent the reclassification of Oryx's
other income to Kerr-McGee's presentation.
     The following  table provides a  reconciliation  of net income  reported by
Kerr-McGee to the combined amounts  presented for the three years ended December
31, 1999, 1998 and 1997:
<TABLE>
<CAPTION>

                             Income (Loss)
                           From Continuing   Discontinued   Extraordinary      Accounting
                                Operations     Operations          Charge          Change      Net Income
(Millions of dollars)       (net of taxes) (net of taxes)  (net of taxes)  (net of taxes)          (Loss)
- ---------------------       -------------- --------------  --------------  --------------          ------
<S>                                  <C>             <C>              <C>             <C>            <C>
1999 -
  Pre-Merger -
    Kerr-McGee                       $   6           $ --             $--             $(4)           $  2
    Oryx                               (14)            --              --              --             (14)
  Post-Merger                          154             --              --              --             154
                                     -----           ----             ---             ---            ----
      Total                          $ 146           $ --             $--             $(4)           $142
                                     =====           ====             ===             ===            ====

1998 -
  Pre-Merger -
    Kerr-McGee                       $(227)          $277             $--             $--            $ 50
    Oryx                               (95)            --              --              --             (95)
  Merger adjustments                   (23)            --              --              --             (23)
                                     -----           ----             ---             ---            ----
      Total                          $(345)          $277             $--             $--            $(68)
                                     =====           ====             ===             ===            ====

1997 -
  Pre-Merger -
    Kerr-McGee                       $ 161           $ 33             $--             $--            $ 194
    Oryx                               172             --              (2)             --              170
  Merger adjustments                    18             --              --              --               18
                                     -----           ----             ---             ---            -----
      Total                          $ 351           $ 33             $(2)            $--            $ 382
                                     =====           ====             ===             ===            =====
</TABLE>

     The merger  adjustments were to conform accounting policy changes primarily
related to the following:  (1) accounting for postretirement benefits other than
pensions;  (2) different methods for recognizing  Petroleum Revenue Tax for U.K.
operations;  and (3) different  methods of providing for nonproducing  leasehold
cost impairments.


24. Reporting by Business Segments and Geographic Locations

     The company has three  reportable  segments:  oil and gas  exploration  and
production and manufacturing and marketing of titanium dioxide pigment and other
chemicals. The exploration and production unit produces and explores for oil and
gas in the United States,  United  Kingdom  sector of the North Sea,  Indonesia,
China,  Kazakhstan  and  Ecuador.  Exploration  efforts  are  also  extended  to
Australia,  Algeria, Brazil, Gabon, Thailand, Yemen and the Danish sector of the
North Sea. The chemical unit  primarily  produces and markets  titanium  dioxide
pigment and has operations in the United States, Australia, Germany and Belgium.
Other chemicals include the company's  electrolytic  manufacturing and marketing
operations and forest products treatment  business.  All of these operations are
in the United States.
     Crude  oil  sales to an  individually  significant  customer  totaled  $420
million in 1999.  There were no  individually  significant  customers in 1998 or
1997. Sales to subsidiary companies are eliminated as described in Note 1.
<TABLE>
<CAPTION>

(Millions of dollars)                                     1999       1998       1997
- ---------------------                                   ------     ------     ------
<S>                                                     <C>        <C>        <C>
Sales -
  Exploration and production                            $1,770     $1,267     $1,845
                                                        ------     ------     ------
  Chemicals -
    Pigment                                                700        640        470
    Other                                                  226        293        290
                                                        ------     ------     ------
      Total Chemicals                                      926        933        760
                                                        ------     ------     ------
        Total                                           $2,696     $2,200     $2,605
                                                        ======     ======     ======

Operating profit (loss)(1) -
  Exploration and production                            $  542     $(361)     $  595
                                                        ------     -----      ------
  Chemicals -
    Pigment                                                113         56         49
    Other                                                   14         --         32
                                                        ------     ------     ------
      Total Chemicals                                      127         56         81
                                                        ------     ------     ------
        Total                                           $  669     $ (305)    $  676
                                                        ======     ======     ======

Net operating profit (loss)(1) -
  Exploration and production                            $  338     $ (266)    $  375
                                                        ------     ------     ------
  Chemicals -
    Pigment                                                 73         35         31
    Other                                                    9         --         21
                                                        ------     ------     ------
      Total Chemicals                                       82         35         52
                                                        ------     ------     ------
        Total                                              420       (231)       427
Net interest expense(1)                                   (117)       (77)       (84)
Net nonoperating income (expense)(1)                      (157)       (37)         8
Income from discontinued operations, net of taxes           --        277         33
Extraordinary charge, net of taxes                          --         --         (2)
Cumulative effect of change in accounting principle,
  net of taxes                                              (4)        --         --
                                                        ------     ------     ------
Net income (loss)                                       $  142     $  (68)    $  382
                                                        ======     ======     ======

Depreciation, depletion and amortization -
  Exploration and production                            $  578     $  527     $  508
                                                        ------     ------     ------
  Chemicals -
    Pigment                                                 45         49         34
    Other                                                   18         19         21
                                                        ------     ------     ------
      Total Chemicals                                       63         68         55
                                                        ------     ------     ------
  Other                                                      7          6          5
  Discontinued operations                                   --         14         25
                                                        ------     ------     ------
        Total                                           $  648     $  615     $  593
                                                        ======     ======     ======
</TABLE>

(1) Includes special items.  Refer to Management's Discussion and Analysis.
<TABLE>
<CAPTION>

(Millions of dollars)                                     1999       1998       1997
- ---------------------                                   ------     ------     ------
<S>                                                     <C>        <C>        <C>
Cash capital expenditures -
  Exploration and production                            $  447     $  871     $  708
                                                        ------     ------     ------
  Chemicals -
    Pigment                                                 76         69         64
    Other                                                   14         23         27
                                                        ------     ------     ------
      Total Chemicals                                       90         92         91
                                                        ------     ------     ------
  Other                                                      6          8         10
  Discontinued operations                                   --         10         27
                                                        ------     ------     ------
        Total                                              543        981        836
                                                        ------     ------     ------

Cash exploration expenses -
  Exploration and production -
    Dry hole costs                                          43        100         53
    Amortization of undeveloped leases                      41         40         23
    Other                                                   56         75         63
                                                        ------     ------     ------
      Total exploration expenses                           140        215        139
    Less - Amortization of leases and
      other noncash expenses                               (51)       (42)       (23)
                                                        ------     ------     ------
        Total cash exploration expenses                     89        173        116
                                                        ------     ------     ------
          Total cash capital expenditures
            and cash exploration expenses               $  632     $1,154     $  952
                                                        ======     ======     ======

Identifiable assets -
  Exploration and production                            $4,013     $4,083     $3,924
                                                        ------     ------     ------
  Chemicals -
    Pigment(1)                                             921        863        601
    Other                                                  229        235        274
                                                        ------     ------     ------
      Total Chemicals                                    1,150      1,098        875
                                                        ------     ------     ------
        Total                                            5,163      5,181      4,799
  Corporate and other assets                               736        270        270
  Discontinued operations                                   --         --        270
                                                        ------     ------     ------
        Total                                           $5,899     $5,451     $5,339
                                                        ======     ======     ======

Sales -
  U.S. operations                                       $1,471     $1,311     $1,635
                                                        ------     ------     ------
  International operations -
    North Sea - exploration and production                 752        472        644
    Other - exploration and production                      78         67        105
    Europe - pigment                                       210        163         --
    Australia - pigment                                    185        178        185
    Other - pigment                                         --          9         36
                                                        ------     ------     ------
                                                         1,225        889        970
                                                        ------     ------     ------
      Total                                             $2,696     $2,200     $2,605
                                                        ======     ======     ======

Operating profit (loss)(2) -
  U.S. operations                                       $  364     $ (116)    $  400
                                                        ------     ------     ------
  International operations -
    North Sea - exploration and production                 270       (146)        85
    Other - exploration and production                      --        (85)       178
    Australia - pigment                                     21         19         13
    Europe - pigment                                        14         23         --
                                                        ------     ------     ------
                                                           305       (189)       276
                                                        ------     ------     ------
      Total                                             $  669     $ (305)    $  676
                                                        ======     ======     ======
</TABLE>

(1) Includes net deferred tax asset of $12 million,  $17 million and $22 million
    at December 31, 1999,  1998 and 1997,  respectively  (see Note 12).
(2) Includes special items. Refer to Management's Discussion and Analysis.
<TABLE>
<CAPTION>

(Millions of dollars)                                     1999       1998       1997
- ---------------------                                   ------     ------     ------
<S>                                                     <C>        <C>        <C>
Net property, plant and equipment -
  U.S. operations                                       $2,106     $2,095     $2,382
                                                        ------     ------     ------
  International operations -
    North Sea - exploration and production               1,547      1,617      1,101
    Other - exploration and production                     219        213        303
    Australia - pigment                                    132        129        133
    Europe - pigment                                        81         99         --
                                                        ------     ------     ------
                                                         1,979      2,058      1,537
                                                        ------     ------     ------
      Total                                             $4,085     $4,153     $3,919
                                                        ======     ======     ======
</TABLE>

25. Subsequent Events

     On January 18, 2000,  the company  completed  the purchase of Repsol S.A.'s
upstream oil and gas  operations in the United  Kingdom  sector of the North Sea
for $555 million. The cash transaction was financed initially through transition
financing,  which will be replaced with the permanent financing discussed below.
Additionally,  on February 14, 2000, the company reached  definitive  agreements
with Kemira Oyj of Finland to purchase its titanium  dioxide pigment  operations
in Savannah, Georgia, and Boltek, the Netherlands, for $403 million.
     To provide financing for these two  acquisitions,  the company completed in
February a public offering of 7.5 million shares of its common stock at $50.0625
per share and a separate offering of $600 million of 5-1/4%, 10-year convertible
subordinated debentures. The conversion price of the debentures is $61.0763.

26. Costs Incurred in Crude Oil and Natural Gas Activities

     Total  expenditures,  both  capitalized  and  expensed,  for  crude oil and
natural gas property acquisition, exploration and development activities for the
three years ended December 31, 1999, are reflected in the following table:

                                  Property
                               Acquisition     Exploration     Development
(Millions of dollars)             Costs(1)        Costs(2)        Costs(3)
- ---------------------          -----------     -----------     -----------
1999 -
  United States                       $ 81            $ 92            $224
  North Sea                             30              18             106
  Other international                    8              32               9
                                      ----            ----            ----
    Total                             $119            $142            $339
                                      ====            ====            ====

1998 -
  United States                       $117            $136            $347
  North Sea                            423              38             311
  Other international                    5              75              29
                                      ----            ----            ----
    Total                             $545            $249            $687
                                      ====            ====            ====

1997 -
  United States                       $ 70            $110            $360
  North Sea                              2              18             146
  Other international                    2              61              50
                                      ----            ----            ----
    Total                             $ 74            $189            $556
                                      ====            ====            ====


(1) Includes $49 million,  $280 million and $11 million  applicable to purchases
    of reserves in place in 1999, 1998 and 1997, respectively.
(2) Exploration costs include delay rentals, exploratory dry holes, dry hole and
    bottom  hole  contributions,  geological  and  geophysical  costs, costs  of
    carrying and retaining properties and capital expenditures, such as costs of
    drilling and equipping successful exploratory wells.
(3) Development costs include costs incurred to obtain access to proved reserves
    (surveying,   clearing   ground,   building   roads),  to  drill  and  equip
    development  wells,  and  to  acquire,  construct  and  install   production
    facilities and improved recovery  systems.  Development  costs  also include
    costs of  developmental  dry holes.

27. Results of Operations from Crude Oil and Natural Gas Activities

     The results of operations from crude oil and natural gas activities for the
three years ended December 31, 1999, consist of the following:
<TABLE>
<CAPTION>

                                                                                                                        Results of
                                        Production     Other                 Depreciation               Income Tax     Operations,
                                 Gross   (Lifting)   Related   Exploration  and Depletion       Asset     Expenses       Producing
(Millions of dollars)         Revenues       Costs  Costs(1)      Expenses       Expenses  Impairment   (Benefits)      Activities
- ---------------------         --------  ----------  --------   ------------ -------------  ----------   ----------     -----------
<S>                             <C>           <C>       <C>           <C>            <C>         <C>         <C>             <C>
1999 -
  United States                 $  938        $178      $ 73          $ 97           $316        $ --        $  96           $ 178
  North Sea                        731         231        22            22            205          --           99             152
  Other international               77          23        18            21             15          --            2              (2)
                                ------        ----      ----          ----           ----        ----        -----           -----
    Total crude oil and
      natural gas activities     1,746         432       113           140            536          --          197             328
  Other(2)                          24           6        --            --              1          --            7              10
       --                       ------        ----      ----          ----           ----        ----        -----           -----
        Total                   $1,770        $438      $113          $140           $537        $ --        $ 204           $ 338
                                ======        ====      ====          ====           ====        ====        =====           =====

1998 -
  United States                 $  721        $184      $126          $141           $285        $114        $ (36)          $ (93)
  North Sea                        450         195         7            21            170         160          (20)            (83)
  Other international               67          12         9            52             31         115          (45)           (107)
                                ------        ----      ----          ----           ----        ----        -----           -----
    Total crude oil and
      natural gas activities     1,238         391       142           214            486         389         (101)           (283)
  Other(2)                          29           5         1            --             --          --            6              17
       --                       ------        ----      ----          ----           ----        ----        -----           -----
        Total                   $1,267        $396      $143          $214           $486        $389        $ (95)          $(266)
                                ======        ====      ====          ====           ====        ====        =====           =====

1997 -
  United States                 $1,045        $211      $101          $ 82           $316        $ --        $ 120           $  215
  North Sea                        615         207        11            19            140          --           94              144
  Other international              101          29        12            36             29          --           (6)               1
                                ------        ----      ----          ----           ----        ----        -----           ------
    Total crude oil and
      natural gas activities     1,761         447       124           137            485          --          208              360
  Other(2)                          84          55         2            --             --          --           12               15
       --                       ------        ----      ----          ----           ----        ----        -----           ------
        Total                   $1,845        $502      $126          $137           $485        $ --        $ 220           $  375
                                ======        ====      ====          ====           ====        ====        =====           ======
</TABLE>

(1) Includes  transition and restructuring  charges of $20 million,  $34 million
and $2 million in 1999, 1998 and 1997, respectively (see Note 22).

(2) Includes gas  marketing,  gas processing  plants,  pipelines and other items
that do not fit the  definition of crude oil and natural gas activities but have
been included above to reconcile to the segment presentations.

     The table below  presents the  company's  average  per-unit  sales price of
crude oil and natural gas and production  costs per barrel of oil equivalent for
each of the past three years.  Natural gas  production  has been  converted to a
barrel of oil  equivalent  based on  approximate  relative  heating value (6 MCF
equals 1 barrel).

                                                       1999    1998    1997
                                                     ------  ------  ------
Average sales price -
  Crude oil (per barrel) -
    United States                                    $16.70  $12.73  $18.34
    North Sea                                         17.88   12.93   18.93
    Other international                               14.34    9.90   15.36
      Average                                         17.15   12.52   18.32

  Natural gas (per MCF) -
    United States                                      2.38    2.09    2.43
    North Sea                                          2.12    2.46    2.44
      Average                                          2.35    2.12    2.43

Production costs -
 (Per barrel of oil equivalent)
    United States                                      2.92    3.23    3.25
    North Sea                                          5.57    5.62    6.25
    Other international                                4.32    1.78    4.33
      Average                                          4.01    3.97    4.27


28. Capitalized Costs of Crude Oil and Natural Gas Activities>

     Capitalized  costs of crude oil and natural gas  activities and the related
reserves for  depreciation,  depletion and  amortization  at the end of 1999 and
1998 are set forth in the table below.

(Millions of dollars)                                            1999      1998
- ---------------------                                          ------    ------
Capitalized costs -
  Proved properties                                            $9,153    $8,701
  Unproved properties                                             438       583
  Other                                                            98        75
                                                               ------    ------
    Total                                                       9,689     9,359
                                                               ------    ------
Reserves for depreciation, depletion and amortization -
  Proved properties                                             6,100     5,734
  Unproved properties                                             102        69
  Other                                                            43        34
                                                               ------    ------
    Total                                                       6,245     5,837
                                                               ------    ------
      Net capitalized costs                                    $3,444    $3,522
                                                               ======    ======

29. Crude Oil, Condensate, Natural Gas Liquids and Natural Gas Net Reserves
    (Unaudited)

     The  estimates  of proved  reserves  have been  prepared  by the  company's
geologists  and  engineers  in  accordance  with  the  Securities  and  Exchange
Commission  definitions.  Such estimates include reserves on certain  properties
that are partially  undeveloped  and reserves that may be obtained in the future
by improved recovery operations now in operation or for which successful testing
has been  demonstrated.  The  company  has no proved  reserves  attributable  to
long-term  supply  agreements with  governments or consolidated  subsidiaries in
which there are significant minority interests.
     The following table  summarizes the changes in the estimated  quantities of
the  company's  crude oil,  condensate,  natural  gas  liquids  and  natural gas
reserves for the three years ended December 31, 1999.

<TABLE>
<CAPTION>

                                                      Crude Oil, Condensate and
                                                         Natural Gas Liquids                         Natural Gas
                                                        (Millions of barrels)                  (Billions of cubic feet)
                                                  ---------------------------------      -------------------------------------

                                                                      Other                                      Other
                                                  United   North   Interna-                 United    North   Interna-
                                                  States     Sea     tional   Total      States(1)      Sea     tional   Total
                                                  ------   -----   --------   -----      ---------    -----   --------   -----
<S>                                                  <C>     <C>        <C>     <C>          <C>        <C>        <C>   <C>
Proved developed and undeveloped reserves -
  Balance December 31, 1996(2)                       251     211        101     563          1,481      197         39   1,717
    Revisions of previous estimates                   12      11          1      24              1       22          3      26
    Purchases of reserves in place                     5      --         --       5             19       --         --      19
    Sales of reserves in place                        --      (1)        --      (1)           (30)      --         --     (30)
    Extensions, discoveries and other additions       28       1          9      38            227       --        214     441
    Production                                       (26)    (30)        (7)    (63)          (235)     (16)        --    (251)
                                                     ---     ---        ---     ---          -----      ---        ---   -----
  Balance December 31, 1997                          270     192        104     566          1,463      203        256   1,922
    Revisions of previous estimates                    6       6        (15)     (3)            (4)       7         13      16
    Purchases of reserves in place                    --      45         --      45              4       46         --      50
    Sales of reserves in place                       (13)     --         --     (13)           (88)      --         --     (88)
    Extensions, discoveries and other additions       14       9         21      44            129        3        103     235
    Production                                       (24)    (32)        (7)    (63)          (197)     (17)        --    (214)
                                                     ---     ---        ---     ---          -----      ---        ---    ----
  Balance December 31, 1998                          253     220        103     576          1,307      242        372    1,921
    Revisions of previous estimates                    5      14          1      20             14        9          5       28
    Purchases of reserves in place                     4       7         --      11             18       36         --       54
    Sales of reserves in place                        (1)     (5)        --      (6)            (1)      --         --       (1)
    Extensions, discoveries and other additions        1      34         13      48            101        2        138      241
    Production                                       (29)    (38)        (5)    (72)          (191)     (23)        --     (214)
                                                     ---     ---        ---     ---          -----      ---        ---   ------
  Balance December 31, 1999                          233     232        112     577          1,248      266        515    2,029
                   === ====                          ===     ===        ===     ===          =====      ===        ===    =====


Proved developed reserves -
    December 31, 1997                                166     115         55     336            919      161         --    1,080
    December 31, 1998                                148     141         38     327            812      163         --      975
    December 31, 1999                                166     167         32     365            837      157         --      994

</TABLE>

(1) 1998 and 1997 U.S. gas volumes have been restated to be consistent  with the
current year's presentation.
(2)  Includes 1 million  barrels of oil and 3 billion  cubic feet of natural gas
held for sale at December 31, 1996 (see Note 17).


     The  following  presents  the  company's  barrel of oil  equivalent  proved
developed and undeveloped  reserves based on approximate  relative heating value
(6 MCF equals 1 barrel)


                                     United      North     Other
(Millions of equivalent barrels)   States(1)       Sea     International   Total
- --------------------------------   ---------       ---     -------------   -----
December 31, 1997                        514       226               147     887
December 31, 1998                        471       260               165     896
December 31, 1999                        441       276               198     915

(1) 1998 and 1997 U.S. gas volumes have been restated to be consistent  with the
    current year's presentation.

30. Standardized Measure of and Reconciliation of Changes in Discounted Future
    Net Cash Flows (Unaudited)

     The  standardized  measure  of  future  net  cash  flows  presented  in the
following  table was computed using year-end prices and costs and a 10% discount
factor.  The future income tax expense was computed by applying the  appropriate
year-end  statutory  rates,  with  consideration  of future  tax  rates  already
legislated,  to the  future  pre-tax  net cash  flows  less the tax basis of the
properties  involved.  However, the company cautions that actual future net cash
flows  may vary  considerably  from  these  estimates.  Although  the  company's
estimates of total reserves,  development  costs and production rates were based
on the best information available, the development and production of the oil and
gas reserves may not occur in the periods  assumed.  Actual prices  realized and
costs incurred may vary significantly from those used. Therefore, such estimated
future net cash flow  computations  should not be  considered  to represent  the
company's  estimate of the  expected  revenues or the current  value of existing
proved reserves.

<TABLE>
<CAPTION>


                                                                                             Standardized
                                             Future                                            Measure of
                            Future      Development                                    10%     Discounted
                              Cash   and Production         Future   Future Net     Annual     Future Net
(Millions of dollars)      Inflows            Costs   Income Taxes   Cash Flows   Discount     Cash Flows
- ---------------------      -------   --------------   ------------   ----------   --------     ----------
<S>                        <C>               <C>            <C>          <C>        <C>            <C>
1999 -
  United States            $ 7,928           $3,332         $1,398       $3,198     $1,343         $1,855
  North Sea                  6,146            2,608          1,245        2,293        665          1,628
  Other international        3,693            1,665            783        1,245        717            528
                           -------           ------         ------       ------     ------         ------
    Total                  $17,767           $7,605         $3,426       $6,736     $2,725         $4,011
                           =======           ======         ======       ======     ======         ======

1998 -
  United States            $ 4,780           $2,108         $  718       $1,954     $  713         $1,241
  North Sea                  3,121            2,474             82          565        160            405
  Other international        1,499              977            181          341        264             77
                           -------           ------         ------       ------     ------         ------
    Total                  $ 9,400           $5,559         $  981       $2,860     $1,137         $1,723
                           =======           ======         ======       ======     ======         ======

1997 -
  United States            $ 8,006           $2,936         $1,584       $3,486     $1,310         $2,176
  North Sea                  4,026            2,678            282        1,066        356            710
  Other international        2,291            1,471            236          584        283            301
                           -------           ------         ------       ------     ------         ------
    Total                  $14,323           $7,085         $2,102       $5,136     $1,949         $3,187
                           =======           ======         ======       ======     ======         ======

</TABLE>

     The  changes  in the  standardized  measure  of future  net cash  flows are
presented below for each of the past three years:
<TABLE>
<CAPTION>

(Millions of dollars)                                                  1999       1998       1997
- ---------------------                                                ------    -------    -------
<S>                                                                  <C>       <C>        <C>
Net change in sales, transfer prices and production costs            $4,310    $(2,156)   $(3,704)
Changes in estimated future development costs                          (318)      (377)      (283)
Sales and transfers less production costs                            (1,314)      (847)    (1,314)
Purchases of reserves in place                                          117        159         26
Changes due to extensions, discoveries, etc                             592        173        478
Changes due to revisions in quantity estimates                          272         43         81
Changes due to sales of reserves in place                              (104)      (107)        (9)
Current period development costs                                        339        687        556
Accretion of discount                                                   231        437        759
Changes in income taxes                                              (1,414)       693      1,242
Timing and other                                                       (423)      (169)        37
                                                                     ------    -------    -------
  Net change                                                          2,288     (1,464)    (2,131)
Total at beginning of year                                            1,723      3,187      5,318
                                                                     ------    -------    -------
Total at end of year                                                 $4,011    $ 1,723    $ 3,187
                                                                     ======    =======    =======
</TABLE>

31. Quarterly Financial Information (Unaudited)

     A summary of quarterly  consolidated results for 1999 and 1998 is presented
below.  In periods in which  there was a loss from  continuing  operations,  the
conversion  of stock  options was not assumed  since the loss  per-share  amount
would have been lower. Therefore, the quarterly per-share amounts may not add to
the  annual  amounts.   Refer  to  Management's   Discussion  and  Analysis  for
information about special items.

<TABLE>
<CAPTION>

                                                                             Diluted Income (Loss)
                                                                                per Common Share
                                                      Income               -----------------------
                                                   (Loss) from       Net
(Millions of dollars,                  Operating    Continuing    Income    Continuing      Net
except per-share amounts)  Sales   Profit (Loss)    Operations    (Loss)    Operations      Income
- ------------------------- ------   -------------    ----------    ------    ----------      ------
<S>                       <C>              <C>           <C>      <C>          <C>          <C>
1999 Quarter Ended -
  March 31                $  486           $  49         $(107)   $(111)       $(1.23)      $(1.28)
  June 30                    657             135            45       45           .52          .52
  September 30               753             239            98       98          1.13         1.13
  December 31                800             246           110      110          1.27         1.27
                          ------           -----         -----    -----        ------       ------
    Total                 $2,696           $ 669         $ 146    $ 142        $ 1.69       $ 1.64
                          ======           =====         =====    =====        ======       ======

1998 Quarter Ended -
  March 31                $  507           $  55         $  16    $  24        $  .18       $  .27
  June 30                    601              73            32       83           .36          .95
  September 30               556              11           (68)     150          (.77)        1.73
  December 31                536            (444)         (325)    (325)        (3.75)       (3.74)
                          ------           -----         -----    -----        ------       ------
    Total                 $2,200           $(305)        $(345)   $ (68)       $(3.98)      $ (.78)
                          ======           =====         =====    =====        ======       ======
</TABLE>


     The  company's  common  stock is listed  for  trading on the New York Stock
Exchange  and at  year-end  1999 was  held by  approximately  32,000  Kerr-McGee
stockholders  of record and Oryx owners who have not yet exchanged  their stock.
The ranges of market prices and dividends declared during the last two years for
Kerr-McGee Corporation are as follows:

                                Market Prices
                     --------------------------------------
                                                                 Dividends
                             1999                 1998           per Share
                     -----------------    -----------------    ------------
                        High      Low        High      Low     1999    1998
                     -------   -------    -------   -------    -----   -----
Quarter Ended -
  March 31           41-7/16   28-1/2     73-3/16   55-7/8     $.45    $.45
  June 30            52-1/8    32-1/2     70-1/4    56-5/8      .45     .45
  September 30       60-1/16   49-5/16    60-1/2    38          .45     .45
  December 31        62        52         47-9/16   36-3/16     .45     .45




Six-Year Financial Summary

<TABLE>
<CAPTION>

(Millions of dollars, except per-share amounts)          1999     1998     1997     1996     1995      1994
- -----------------------------------------------        ------   ------   ------   ------   ------   -------
<S>                                                    <C>      <C>      <C>      <C>      <C>      <C>
Summary of Net Income (Loss)
Sales                                                  $2,696   $2,200   $2,605   $2,740   $2,419   $ 2,359
                                                       ------   ------   ------   ------   ------   -------
Costs and operating expenses                            2,289    2,606    2,011    2,122    2,305     2,185
Interest and debt expense                                 190      157      141      145      193       211
                                                       ------   ------   ------   ------   ------   -------
  Total costs and expenses                              2,479    2,763    2,152    2,267    2,498     2,396
                                                       ------   ------   ------   ------   ------   -------
                                                          217     (563)     453      473      (79)      (37)
Other income                                               40       43       82      110      147        15
Taxes on income                                          (111)     175     (184)    (225)      42        (9)
                                                       ------   ------   ------   ------   ------   -------
Income (loss) from continuing operations                  146     (345)     351      358      110       (31)
Income from discontinued operations                        --      277       33       56       27        55
Extraordinary charge                                       --       --       (2)      --      (23)      (12)
Cumulative effect of change in accounting principle        (4)      --       --       --       --      (948)
                                                       ------   ------   ------   ------   ------   -------
Net income (loss)                                      $  142   $  (68)  $  382   $  414   $  114   $  (936)
                                                       ======   ======   ======   ======   ======   =======

Common Stock Information, per Share
Diluted net income (loss) -
  Continuing operations                                $ 1.69   $(3.98)  $ 4.02   $ 4.05   $ 1.23   $  (.36)
  Discontinued operations                                  --     3.20      .38      .63      .30       .63
  Extraordinary charge                                     --       --     (.02)      --     (.26)     (.14)
  Cumulative effect of accounting change                 (.05)      --       --       --       --    (10.82)
                                                       ------   ------   ------   ------   ------   -------
    Net income (loss)                                  $ 1.64   $ (.78)  $ 4.38   $ 4.68   $ 1.27   $(10.69)
                                                       ======   ======   ======   ======   ======   =======

Dividends declared                                     $ 1.80   $ 1.80   $ 1.80   $ 1.64   $ 1.55   $  1.52
Stockholders' equity                                    17.19    15.58    17.88    14.59    12.47     12.33
Market high for the year                                62.00    73.19    75.00    74.13    64.00     51.00
Market low for the year                                 28.50    36.19    55.50    55.75    44.00     40.00
Market price at year-end                               $62.00   $38.25   $63.31   $72.00    63.50   $ 46.25
Shares outstanding at year-end (thousands)             86,483   86,367   86,794   87,032   89,613    90,143

Balance Sheet Information
Working capital                                        $  321   $ (173)  $   --   $  161   $ (106)  $  (254)
Property, plant and equipment - net                     4,085    4,153    3,919    3,693    3,807     4,497
Total assets                                            5,899    5,451    5,339    5,194    5,006     5,918
Long-term debt                                          2,496    1,978    1,736    1,809    1,683     2,219
Total debt                                              2,525    2,250    1,766    1,849    1,938     2,704
Total debt less cash                                    2,258    2,129    1,574    1,719    1,831     2,612
Stockholders' equity                                    1,492    1,346    1,558    1,279    1,124     1,112

Cash Flow Information
Net cash provided by operating activities                 713      385    1,097    1,169      728       678
Cash capital expenditures                                 543      981      836      875      745       611
Dividends paid                                            138       86       85       83       79        79
Treasury stock purchased                               $   --   $   25   $   60   $  195   $   45   $    --

Ratios and Percentage
Current ratio                                             1.4       .8      1.0      1.2       .9        .8
Average price/earnings ratio                             27.6       NM     14.9     13.9     42.5        NM
Total debt less cash to total capitalization               60%      61%      50%      57%      62%       70%

Employees
Total wages and benefits                               $  327   $  359   $  367   $  367   $  402   $   422
Number of employees at year-end                         3,653    4,400    4,792    4,827    5,176     6,724
</TABLE>


Six-Year Operating Summary
<TABLE>
<CAPTION>

                                                         1999     1998     1997     1996     1995     1994
                                                       ------   ------   ------   ------   ------   ------
<S>                                                    <C>      <C>      <C>      <C>      <C>      <C>
Exploration and Production
Net production of crude oil and condensate -
  (thousands of barrels per day)
    United States                                        79.3     66.2     70.6     73.8     74.8     73.4
    North Sea                                           102.9     87.4     83.3     86.5     91.9     88.7
    Other international                                  14.7     18.4     18.1     16.8     17.4     26.4
                                                       ------   ------   ------   ------   ------   ------
      Total                                             196.9    172.0    172.0    177.1    184.1    188.5
                                                       ======   ======   ======   ======   ======   ======

Average price of crude oil sold (per barrel) -
    United States                                      $16.70   $12.73   $18.34   $19.45   $15.73   $14.25
    North Sea                                           17.88    12.93    18.93    19.60    16.56    15.33
    Other international                                 14.34     9.90    15.36    15.85    14.70    14.58
      Average                                          $17.15   $12.52   $18.32   $19.18   $16.05   $14.80

Natural gas sales (MMCF per day)                          580      584      685      781      809      872
Average price of natural gas sold (per MCF)            $ 2.35   $ 2.12   $ 2.43   $ 2.10   $ 1.63   $ 1.82

Net exploratory wells drilled -
    Productive                                           1.70     4.40     7.65     6.91     4.71    11.61
    Dry                                                  3.75    14.42     7.42     5.52    11.16    13.47
                                                       ------   ------   ------   ------   ------   ------
      Total                                              5.45    18.82    15.07    12.43    15.87    25.08
                                                       ======   ======   ======   ======   ======   ======

Net development wells drilled -
    Productive                                          46.23    62.30    95.78   143.33   135.86    69.27
    Dry                                                  5.89     9.00     7.00    13.04    11.95     9.63
                                                       ------   ------   ------   ------   ------   ------
      Total                                             52.12    71.30   102.78   156.37   147.81    78.90
                                                       ======   ======   ======   ======   ======   ======

Undeveloped net acreage (thousands) -
    United States                                       1,560    1,487    1,353    1,099    1,280    1,415
    North Sea                                             861      908      523      560      570      629
    Other international                                19,039   14,716   14,630    4,556    4,031    7,494
                                                       ------   ------   ------   ------   ------   ------
      Total                                            21,460   17,111   16,506    6,215    5,881    9,538
                                                       ======   ======   ======   ======   ======   ======

Developed net acreage (thousands) -
    United States                                         796      810      830      871    1,190    1,270
    North Sea                                             105      115       70       79       58       68
    Other international                                   785      612      201      198      207    1,015
                                                       ------   ------   ------   ------   ------   ------
      Total                                             1,686    1,537    1,101    1,148    1,455    2,353
                                                       ======   ======   ======   ======   ======   ======

Estimated proved reserves
  (millions of equivalent barrels)                        915      896      886      849      864    1,059

Chemicals
Industrial and specialty chemical sales
  (thousands of tonnes)                                   518      481      443      405      404      346
</TABLE>


Stockholder and Investor Information

Stock Exchange Listing
Kerr-McGee  (KMG) common stock is listed on the New York Stock Exchange and also
is traded on the Boston, Chicago, Pacific and Philadelphia stock exchanges.

Stockholder Assistance
Contact UMB Bank, N.A., of Kansas City, Missouri, toll-free at (877) 860-5820 or
(800) 884-4225 for assistance  with:
- - Direct deposit of cash dividends
- - Direct stock purchase and dividend reinvestment plan
- - Transfer of stock certificates
- - Replacement of lost or destroyed stock certificates and dividend checks

Stockholder Information and Publications
Contact the Office of the Corporate  Secretary at (800) STOCK KM  (800-786-2556)
for general information and assistance or to request the company's annual report
on Form 10-K and quarterly  reports on Form 10-Q,  as filed with the  Securities
and Exchange Commission, and the company's annual report to stockholders.

Direct Purchase and Dividend Reinvestment Plan
This plan allows  stockholders to buy Kerr-McGee  common stock directly from the
company and to reinvest  quarterly  dividends in additional  shares. The company
pays all fees and commissions for these services. For a prospectus,  please call
(800) 786-2556.

Investor Information
Richard C. Buterbaugh, Vice President, Investor Relations, is available at (405)
270-3561 to answer  questions  from  stockholders,  security  analysts and other
interested parties.

Transfer Agent and Registrar
UMB Bank, N.A.
Securities Transfer Division
P.O. Box 410064
Kansas City, MO 64141-0064
Toll-free telephone: (877) 860-5820 or (800) 884-4225

Corporate Headquarters
Kerr-McGee Corporation
Kerr-McGee Center
123 Robert S. Kerr Avenue
Oklahoma City, OK 73102

Mailing address:
P.O. Box 25861
Oklahoma City, OK 73125

Telephone: (405) 270-1313

Forward-Looking Information
     Statements  in this annual report  regarding the company's or  management's
intentions,  beliefs or expectations are  forward-looking  statements within the
meaning of the Securities Litigation Reform Act. Future results and developments
discussed  in these  statements  may be affected by numerous  factors and risks,
such as the  accuracy of the  assumptions  that  underlie  the  statements,  the
success of the oil and gas exploration and production  program,  drilling risks,
the  market  value  of  Kerr-McGee's  products,  uncertainties  in  interpreting
engineering data, demand for consumer products for which Kerr-McGee's businesses
supply raw materials,  general economic conditions,  and other factors and risks
discussed in the  company's SEC filings.  Actual  results and  developments  may
differ materially from those expressed or implied in this annual report.




                                                                  EXHIBIT 21


                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES


                                  SUBSIDIARIES



                                         State or Country        Percent
      Name of Subsidiary                 of Incorporation         Owned
- -----------------------------------      ----------------        -------

Kerr-McGee Oil & Gas Corporation              Delaware             100%
Kerr-McGee Oil (U.K.)PLC                      England              100%
Kerr-McGee Resources (U.K.) Limited           England              100%
Kerr-McGee North Sea (U.K.) Limited           England              100%
Kerr-McGee Chemical LLC                       Delaware             100%
Kerr-McGee L.P. Corporation                   Delaware             100%
Kerr-McGee Oil & Gas Onshore LLC              Delaware             100%


         A number of additional  subsidiaries  are omitted since,  considered in
the aggregate as a single  subsidiary,  they would not  constitute a significant
subsidiary as of December 31, 1999.




                                                               EXHIBIT 23.1



Consent of Independent Public Accountants

As independent public accountants, we hereby consent to the incorporation of our
reports dated February 25, 2000, included in the company's 1999 Annual Report to
Stockholders  and  incorporated by reference in this Form 10-K and on page 30 of
this Form 10-K, into the company's  previously filed Registration  Statements on
Form  S-8  File   Nos.  33-24274,   33-50949,  333-28235 and 333-92865, and  the
company's  previously   filed   Registration   Statements  on Form S-3 File Nos.
33-66112 and 333-94091.

                                                      (ARTHUR ANDERSEN LLP)
                                                       ARTHUR ANDERSEN LLP


Oklahoma City, Oklahoma,
    March 30, 2000




                                                               EXHIBIT 23.2



Consent of Independent Public Accountant

We  hereby  consent  to  the  incorporation  by  reference  in  the Registration
Statements  on  Form  S-3  (Nos. 33-66112  and 333-94091)  and  Form  S-8  (Nos.
33-24274;  33-50949;  333-28235  and 333-92865) of Kerr-McGee Corporation of our
report dated February 26, 1999 appearing in Kerr-McGee Corporation's 1999 Annual
Report  to  Stockholders   and   incorporated  by  reference  in this Form 10-K,
relating to the consolidated financial statements of Oryx  Energy Company, which
such financial statements are not separately presented therein.

(PRICEWATERHOUSECOOPERS LLP)
 PricewaterhouseCoopers LLP


Dallas, Texas
March 30, 2000


                                                                   EXHIBIT 24


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                         (WILLIAM E. BRADFORD)
                                         -----------------------------
                                         William E. Bradford, Director




                            KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned  in his  capacity  as a Director  or
Officer or both, as the case may be, of the Company,  does hereby appoint Tom J.
McDaniel and Gregory F. Pilcher, and each of them severally, his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
or Officer or both,  as the case may be, of the  Company,  the Form 10-K and any
and all  amendments  thereto,  as said  attorneys  or  each of them  shall  deem
necessary or appropriate,  together with all instruments necessary or incidental
in connection therewith, and to file the same or cause the same to be filed with
the Commission. Each of said attorneys shall have full power and authority to do
and  perform  in the  name  and on  behalf  of the  undersigned,  in any and all
capacities,  each  act  whatsoever  necessary  or  desirable  to be  done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                        (LUKE R. CORBETT)
                                        ------------------------------------
                                        Luke R. Corbett
                                        Chief Executive Officer and Director





                            KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in her capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  her  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for her and
in her name, place and stead, in her capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                  (SYLVIA A. EARLE)
                                  -------------------------
                                  Sylvia A. Earle, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                           (DAVID C. GENEVER-WATLING)
                                           ----------------------------------
                                           David C. Genever-Watling, Director



                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                         (MARTIN C. JISCHKE)
                                         ---------------------------
                                         Martin C. Jischke, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned  in his  capacity  as a Director  or
Officer or both, as the case may be, of the Company, does hereby appoint Luke R.
Corbett and Gregory F.  Pilcher his true and lawful  attorney-in-fact  and agent
with power to act and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
or Officer or both,  as the case may be, of the  Company,  the Form 10-K and any
and all  amendments  thereto,  as said  attorneys  or  each of them  shall  deem
necessary or appropriate,  together with all instruments necessary or incidental
in connection therewith, and to file the same or cause the same to be filed with
the  Commission.  Said  attorneys  shall have full power and authority to do and
perform in the name and on behalf of the undersigned, in any and all capacities,
each act whatsoever necessary or desirable to be done in the premises,  as fully
and to all intents and purposes as the undersigned  might or could do in person,
the undersigned hereby ratifying and approving the acts of said attorney.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                         (TOM J. MCDANIEL)
                                         ------------------------------
                                         Tom J. McDaniel
                                         Vice Chairman of the Board and
                                         Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                              (WILLIAM C. MORRIS)
                                              ---------------------------
                                              William C. Morris, Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY



         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                      (JOHN J. MURPHY)
                                      ------------------------
                                      John J. Murphy, Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                            (LEROY C. RICHIE)
                                            -------------------------
                                            Leroy C. Richie, Director



                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                       (MATTHEW R. SIMMONS)
                                       ----------------------------
                                       Matthew R. Simmons, Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in her capacity as a Director of the
Company,  does  hereby  appoint  Luke R.  Corbett,  Tom J.  McDaniel  Gregory F.
Pilcher,  and  each  of  them  severally,  her  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for her and
in her name, place and stead, in her capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                    (FARAH M. WALTERS)
                                    --------------------------
                                    Farah M. Walters, Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact and agents or agent with power to act with or without the other
and with full power of substitution and  resubstitution,  to execute for him and
in his name, place and stead, in his capacity as a Director of the Company,  the
Form 10-K and any and all amendments  thereto, as said attorneys or each of them
shall deem necessary or appropriate,  together with all instruments necessary or
incidental in connection therewith, and to file the same or cause the same to be
filed  with the  Commission.  Each of said  attorneys  shall have full power and
authority to do and perform in the name and on behalf of the undersigned, in any
and all capacities, each act whatsoever necessary or desirable to be done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                     (IAN L. WHITE-THOMSON)
                                     ------------------------------
                                     Ian L. White-Thomson, Director



                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 1999 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as an Officer of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact  and  agents or agent  with power to act and with full power of
substitution and  resubstitution,  to execute for him and in his name, place and
stead,  in his capacity as an Officer of the Company,  the Form 10-K and any and
all amendments  thereto,  as said attorneys or each of them shall deem necessary
or  appropriate,  together  with all  instruments  necessary  or  incidental  in
connection  therewith,  and to file the same or cause the same to be filed  with
the Commission. Each of said attorneys shall have full power and authority to do
and  perform  in the  name  and on  behalf  of the  undersigned,  in any and all
capacities,  each  act  whatsoever  necessary  or  desirable  to be  done in the
premises,  as fully and to all intents and purposes as the undersigned  might or
could do in person,  the undersigned  hereby ratifying and approving the acts of
said attorney.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                       (ROBERT M. WOHLEBER)
                                       -------------------------
                                       Robert M. Wohleber
                                       Senior Vice President and
                                       Chief Financial Officer



<TABLE> <S> <C>


<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Consolidated Balance Sheet at December 31, 1999, 1998, and 1997, and the
Consolidated Statement of Income for the years ended and is qualified in its
entirety by reference to such Form 10-K.
</LEGEND>
<MULTIPLIER> 1,000,000

<S>                                        <C>                     <C>                     <C>
<PERIOD-TYPE>                                     YEAR                    YEAR                    YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998             DEC-31-1997
<PERIOD-END>                               DEC-31-1999             DEC-31-1998             DEC-31-1997
<CASH>                                             267                     121                     192
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                      509                     394                     506
<ALLOWANCES>                                         8                       5                       5
<INVENTORY>                                        281                     247                     175
<CURRENT-ASSETS>                                  1161                     877                     926
<PP&E>                                           11049                   10651                   10228
<DEPRECIATION>                                    6964                    6498                    6309
<TOTAL-ASSETS>                                    5899                    5451                    5339
<CURRENT-LIABILITIES>                              840                    1050                     926
<BONDS>                                              0                       0                       0
                                0                       0                       0
                                          0                       0                       0
<COMMON>                                            93                      93                      93
<OTHER-SE>                                        1399                    1253                    1465
<TOTAL-LIABILITY-AND-EQUITY>                      5899                    5451                    5339
<SALES>                                           2696                    2200                    2605
<TOTAL-REVENUES>                                  2696                    2200                    2605
<CGS>                                             1056                    1053                    1003
<TOTAL-COSTS>                                     2479                    2763                    2152
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                                 190                     157                     141
<INCOME-PRETAX>                                    257                   (520)                     535
<INCOME-TAX>                                       111                   (175)                     184
<INCOME-CONTINUING>                                146                   (345)                     351
<DISCONTINUED>                                       0                     277                      33
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                          (4)                       0                       0
<NET-INCOME>                                       142                    (68)                     382
<EPS-BASIC>                                     1.64                   (.78)                    4.40
<EPS-DILUTED>                                     1.64                   (.78)                    4.40


</TABLE>


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