FILED BY KERR-MCGEE CORPORATION
                                                  PURSUANT TO RULE 425 UNDER THE
                                         SECURITIES ACT OF 1933 AND DEEMED FILED
                                               PURSUANT TO RULE 14A-12 UNDER THE
                                                 SECURITIES EXCHANGE ACT OF 1934

                                      SUBJECT COMPANY:  WESTPORT RESOURCES CORP.
                                              SECURITIES ACT FILE NO. 333-114886

The  communication  filed herewith is the Kerr-McGee  Corporation  first quarter
2004  earnings  release and tables in  connection  with the merger of Kerr-McGee
Corporation and Westport Resources Corporation.


                Kerr-McGee Announces 2004 First-Quarter Earnings
                ------------------------------------------------

     Oklahoma City,  April 28, 2004 - Kerr-McGee Corp.  (NYSE:  KMG) reports net
income for the 2004 first quarter of $152.2  million  ($1.41 per diluted  common
share),  compared  with  $69.9  million  (68 cents per share) for the 2003 first
quarter.  The company's 2004 first-quarter  adjusted after-tax income was $159.4
million  ($1.48 per share),  compared with $127.3  million ($1.20 per share) for
the first quarter of 2003.  Adjusted after-tax income is determined by excluding
from net income the results from discontinued operations,  the cumulative effect
of an accounting  change and special items. The increase of $32.1 million in the
2004  first-quarter  adjusted  after-tax income versus 2003 was primarily due to
higher oil and natural gas sales prices and lower exploration expense.  This was
partially  offset by lower crude oil sales volumes due to 2003  divestitures  of
noncore properties, and higher gathering and general and administrative costs.

                                                            Three Months Ended
                                                                 March 31
                                                           --------------------

(Millions of dollars, except per-share amounts)             2004          2003
                                                           ------        ------
Net Income                                                 $152.2        $ 69.9
  Less Income from Discontinued Operations                      -           (.4)
  Add Change in Accounting Principle                            -          34.7
                                                           ------        ------
Income from Continuing Operations                          $152.2        $104.2
  Add Special Items(1)                                        7.2          23.1
                                                           ------        ------
Adjusted After-Tax Income                                  $159.4        $127.3
                                                           ======        ======

Diluted Earnings Per Share
  Net Income                                               $ 1.41        $  .68
  Change in Accounting Principle                                -           .31
                                                           ------        ------
    Continuing Operations                                  $ 1.41        $  .99
                                                           ======        ======
Adjusted After-Tax Income                                  $ 1.48        $ 1.20
                                                           -=====        ======

(1)  Items  included  in  "Special  Items"  are  listed  on  page  9  as  "Other
     Information, Net of Income Taxes."

Adjusted  after-tax  income  excludes  items  that  management  deems  to not be
reflective  of  the  company's  core  operations.  This  measure  is a  non-GAAP
financial  measure.  Management  believes  that this measure  provides  valuable
insight into the company's core earnings from  operations and enables  investors
and  analysts  to better  compare  core  operating  results  with those of other
companies  by  eliminating  items  that  may be  unique  to the  company.  Other
companies may define  special items  differently,  and the company cannot assure
that adjusted  after-tax  income is comparable with similarly titled amounts for
other companies.

     "We continue to consistently  meet or exceed our guidance in all aspects of
our operations," said Luke R. Corbett,  Kerr-McGee  chairman and chief executive
officer.  "The ongoing  efficient  execution of our development and exploitation
program,  including the early start-up of Gunnison,  enabled us to achieve total
volumes near the upper end of our guidance. Our other major development projects
also are progressing well. In addition, our exploration success,  highlighted by
discoveries at the  Ticonderoga  prospect in the deepwater Gulf of Mexico and at
NW Milne Point in Alaska, resulted in lower exploration costs for the quarter.
     "Earlier  this  month,  we  announced  a  strategic  merger  with  Westport
Resources  Corp.,  which will add depth,  breadth and balance to our oil and gas
operations," said Corbett. "We've already begun planning for the transition,  so
we can immediately  and effectively  merge our businesses upon completion of the
transaction, which we expect to take place in the third quarter."

Operating Profit
----------------
     First-quarter  2004  operating  profit was $330.3  million,  compared  with
$269.6 million in the 2003 first quarter.  Exploration and production  operating
income for the 2004 period was $329.9 million,  compared with $272.2 million for
the prior-year quarter.  The increase is due to higher oil and gas sales prices,
slightly higher natural gas sales volumes and lower exploration costs, partially
offset by lower crude oil sales volumes and higher other operating costs.
     Operating profit for the chemical  operations improved by $3 million in the
2004 first quarter,  compared with the 2003 period,  primarily due to a decrease
in the loss from the non-pigment chemical operations in the 2004 first quarter.

Debt
----
     During the first quarter of 2004, the company reduced debt by $174 million,
resulting in total debt at March 31, 2004 of  approximately  $3.5 billion.  This
compares  with total debt of  approximately  $3.7 billion at Dec. 31, 2003,  and
approximately $3.8 billion at March 31, 2003.

Oil and Gas Volumes and Prices
------------------------------
     Kerr-McGee's  daily oil  production  from  continuing  operations  averaged
143,200 barrels in the 2004 first quarter, down 13% from 165,400 barrels per day
in the 2003 period.  The decrease was primarily due to the 2003  divestiture  of
noncore,  high-cost properties,  combined with lower production generated in the
North Sea area.
     Including the effect of the company's hedging program, the per-barrel sales
price for oil from  continuing  operations  averaged  $27.30  in the 2004  first
quarter, which was 33 cents higher than in the 2003 first quarter.
     Natural  gas sales  averaged  763  million  cubic feet per day for the 2004
first quarter,  up slightly from the prior-year  period. The average natural gas
sales price,  including the effects of the company's hedging program,  was $5.35
per thousand cubic feet, a 14% increase from the 2003 first quarter.  Details on
the  company's  hedges  for  2004  may  be  found  on  Kerr-McGee's  website  at
http://www.kerr-mcgee.com/pdf/hedgeguidance.pdf.

Revenues and Capital Expenditures
---------------------------------
     First-quarter  2004  revenues of $1.1  billion  remained  essentially  flat
compared with the prior year period.
     Capital  expenditures  were $169.8 million,  compared with $306 million for
the 2003 first quarter.

     Kerr-McGee  will hold a conference call today at 11 a.m. EDT to discuss its
first-quarter  results and expectations for the future.  Interested  parties may
listen to the call via Kerr-McGee's website at  www.kerr-mcgee.com or by calling
888-482-0024 within the United States or 617-801-9702 outside the United States.
The password for both dial-in  numbers will be Kerr-McGee.  A replay of the call
will be  available  for 48 hours at  888-286-8010  within the  United  States or
617-801-6888 outside the United States. The code for the replay of the call will
be #97428228.  The webcast  replay will be archived for 30 days on the company's
website.
     Kerr-McGee is an Oklahoma  City-based energy and inorganic chemical company
with worldwide operations and assets of approximately $10 billion.
                                      # # #

                           IMPORTANT LEGAL INFORMATION

THIS  PRESS  RELEASE  IS NOT AN  OFFER  TO SELL  THE  SECURITIES  OF  KERR-MCGEE
CORPORATION AND IT IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES.

INVESTORS  AND  SECURITY  HOLDERS ARE URGED TO READ THE  DEFINITIVE  JOINT PROXY
STATEMENT/PROSPECTUS   REGARDING  THE  PROPOSED   TRANSACTION  WHEN  IT  BECOMES
AVAILABLE BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION.

     Kerr-McGee  Corporation has filed a Registration Statement on Form S-4 with
the U.S. Securities and Exchange Commission (SEC) containing a preliminary joint
proxy statement/prospectus regarding the proposed transaction between Kerr-McGee
Corporation and Westport Resources  Corporation.  Investors and security holders
may obtain a free copy of the definitive joint proxy  statement/prospectus  when
it becomes  available  and other  documents  filed or  furnished  by  Kerr-McGee
Corporation or Westport Resources Corporation with the SEC at the SEC's website,
www.sec.gov. Copies of the definitive joint proxy statement/prospectus and other
documents  filed or furnished by Kerr-McGee  Corporation  or Westport  Resources
Corporation  may also be obtained for free by directing a request to  Kerr-McGee
Corporation,  Attn: Corporate Secretary, P.O. Box 25861, Oklahoma City, Oklahoma
73125 or to Westport  Resources  Corporation,  Attn:  Investor  Relations,  1670
Broadway, Suite 2800, Denver, Colorado 80202.
     Kerr-McGee,  Westport Resources and their respective directors and officers
may be deemed to be participants in the  solicitation of proxies with respect to
the  proposed   transaction   involving   Kerr-McGee  and  Westport   Resources.
Information  regarding   Kerr-McGee's  and  Westport  Resources'  directors  and
officers and a description of their direct and indirect  interests,  by security
holdings  or   otherwise,   is   available  in  the   preliminary   joint  proxy
statement/prospectus contained in the above referenced Registration Statement on
Form S-4 filed with the SEC on April 27, 2004.


Safe Harbor Language on Forward Looking Statements:

     Statements in this news release  regarding  the  company's or  management's
intentions,  beliefs or expectations,  or that otherwise speak to future events,
including resource estimates,  production rate estimates,  development  schedule
and cost estimates,  are "forward-looking  statements" within the meaning of the
U.S. Private  Securities  Litigation  Reform Act of 1995. These  forward-looking
statements  include those statements  preceded by, followed by or that otherwise
include the words "believes," "expects,"  "anticipates," "intends," "estimates,"
"projects,"  "target,"  "budget,"  "goal,"  "plans,"   "objective,"   "outlook,"
"should," or similar words. These "forward-looking"  statements also may include
statements  relating  to (1)  the  impact  the  companies  expect  the  proposed
transaction to have on the combined entity's  operations,  financial  condition,
and financial  results,  (2) the companies'  expectations about their ability to
successfully  integrate the combined businesses,  (3) the amount of cost savings
and overall operational efficiencies the companies expect to realize as a result
of the proposed transaction, (4) when the companies expect to close the proposed
transaction,  (5) anticipated drilling and development opportunities and (6) the
ability of the companies to meet their stated financial goals. In addition,  any
statements  regarding  possible   commerciality,   development  plans,  capacity
expansions,  drilling of new wells, ultimate recoverability of reserves,  future
production  rates,  future  cash flows and changes in any of the  foregoing  are
forward-looking statements.
     Matters discussed in these statements involve risks and uncertainties which
may cause results to differ materially from those set forth in these statements.
The following factors,  among others,  could cause actual results to differ from
those set  forth in these  forward-looking  statements:  the  ability  to obtain
governmental  approvals of the merger on the proposed  terms and  schedule;  the
failure of Kerr-McGee or Westport Resources  stockholders to approve the merger;
the risk that the businesses will not be integrated successfully;  the risk that
the cost savings and any synergies  from the merger may not be fully realized or
may take longer to realize than expected;  disruption  from the merger making it
more difficult to maintain relationships with customers, employees or suppliers;
the accuracy of the assumptions that underlie the statements; the success of the
oil and gas  exploration  and  production  program;  the  price  of oil and gas;
drilling risks;  uncertainties  in  interpreting  engineering  data;  demand for
consumer  products  for which  Kerr-McGee's  oil and gas  business  supplies raw
materials;  the  financial  resources  of  competitors;   changes  in  laws  and
regulations;  the ability to respond to  challenges  in  international  markets,
including changes in currency exchange rates,  political or economic  conditions
in areas  where  Kerr-McGee  operates;  trade and  regulatory  matters;  general
economic conditions;  and other factors and risks identified in the Risk Factors
sections of Kerr-McGee's Annual Report on Form 10-K or Registration Statement on
Form S-4, Westport  Resources' Annual Report on Form 10-K and other of their SEC
filings.

Investor Contact:          Rick Buterbaugh
                           405-270-3561

Media Contact:             Deborah Schramm
                           Direct:  405-270-2877
                           Pager:  888-734-8294
                           dschramm@kmg.com



                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
                                   (Unaudited)

                                                           Three Months Ended
                                                                March 31,
                                                          ---------------------
(Millions of dollars, except per-share amounts)             2004        2003 (a)
                                                          --------     --------
Consolidated Statement of Income
--------------------------------
Revenues                                                  $1,116.3     $1,099.6
                                                          --------     --------
Costs and Expenses -
  Costs and operating expenses                               403.0        384.4
  General and administrative expenses                         83.6         70.9
  Shipping and handling expenses                              37.7         32.0
  Accretion expense                                            6.6          6.2
  Depreciation and depletion                                 190.3        189.6
  Impairments on assets held for use                          13.2          5.1
  Loss (gain) associated with assets held for sale             3.4         (5.2)
  Exploration, including dry holes and amortization of
    undeveloped leases                                        50.6        140.5
  Taxes, other than income taxes                              28.4         25.4
  Provision for environmental remediation and restoration,
    net of reimbursements                                     (0.8)        17.3
  Interest and debt expense                                   57.0         65.0
                                                          --------     --------
    Total Costs and Expenses                                 873.0        931.2
                                                          --------     --------
                                                             243.3        168.4
Other Income (Expense)                                        (0.3)         1.7
                                                          --------     --------
Income before Income Taxes                                   243.0        170.1
Provision for Income Taxes                                   (90.8)       (65.9)
                                                          --------     --------
Income from Continuing Operations                            152.2        104.2
Discontinued Operations, net of taxes                            -          0.4
Cumulative Effect of Change in Accounting Principle,
  net of taxes                                                   -        (34.7)
                                                          --------     --------
Net Income                                                $  152.2     $   69.9
                                                          ========     =========

Net Income (Loss) per Common Share -
  Basic -
    Continuing operations                                 $   1.52     $   1.04
    Accounting change                                            -        (0.34)
                                                          --------     --------
    Net income                                            $   1.52     $   0.70
                                                          ========     ========
  Diluted -
    Continuing operations                                 $   1.41     $   0.99
    Accounting change                                            -        (0.31)
                                                          --------     --------
    Net income                                            $   1.41     $   0.68
                                                          ========     ========

Thousands of Common Shares Outstanding -
  End of period                                            101,398      100,852
  Average                                                  100,304      100,121
  Average - including dilution                             111,346      110,613

(a)  Certain  prior year  amounts  have been  reclassified  to conform  with the
     current year's presentation.


                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
                                   (Unaudited)

                                                           Three Months Ended
                                                                March 31,
                                                          ---------------------
(Millions of dollars)                                       2004        2003 (a)
                                                          --------     --------
Segment Information
-------------------
Revenues
  Exploration and production                              $  833.8     $  795.9
  Chemicals - Pigment                                        252.4        253.3
  Chemicals - Other                                           30.0         50.3
                                                          --------     --------
                                                           1,116.2      1,099.5
  All other                                                    0.1          0.1
                                                          --------     --------
    Total                                                 $1,116.3     $1,099.6
                                                          ========     ========

Operating Profit
  Exploration and production -
    Domestic (includes $10.8 loss ($7.0 after tax) in the
      2003 first quarter for non-hedge derivatives)       $  308.3     $  282.0
    North Sea                                                 93.0        124.1
    China                                                     (1.3)         7.9
    Other international                                       (2.9)        (1.4)
    Impairments on assets held for use                       (13.2)        (5.1)
    Gain (loss) associated with assets held for sale          (3.4)         5.2
                                                          --------     --------
      Total Production Operations                            380.5        412.7
    Exploration expense                                      (50.6)      (140.5)
                                                          --------     --------
                                                             329.9        272.2
                                                          --------  -----------
  Chemicals -
    Pigment                                                    7.2          7.4
    Other                                                     (6.8)       (10.0)
                                                          --------     --------
                                                               0.4         (2.6)
                                                          --------     --------
      Total                                                  330.3        269.6
Net Interest Expense                                         (55.9)       (63.8)
Loss from Equity Affiliates                                   (8.3)        (6.1)
Derivatives and Devon Stock Revaluation (b)                      -          0.9
Foreign Currency Gains (Losses)                               (2.0)         3.4
Other Expense                                                (21.1)       (33.9)
Provision for Income Taxes                                   (90.8)       (65.9)
                                                          --------     --------
Income from Continuing Operations                            152.2        104.2
Discontinued Operations, net of taxes                            -          0.4
Cumulative Effect of Change in Accounting Principle,
  net of taxes                                                   -        (34.7)
                                                          --------     --------
Net Income                                                $  152.2       $ 69.9
                                                          ========     ========

Net Operating Profit
  Exploration and production                              $  207.7      $ 167.4
  Chemicals - Pigment                                          5.3          6.1
  Chemicals - Other                                           (4.4)        (6.5)
                                                          --------     --------
    Total                                                    208.6        167.0
Net Interest Expense                                         (36.0)       (41.5)
Loss from Equity Affiliates                                   (5.4)        (4.0)
Derivatives and Devon Stock Revaluation (b)                      -          0.6
Foreign Currency Gains (Losses)                               (1.3)         4.0
Other Expense                                                (13.7)       (21.9)
Discontinued Operations, net of taxes                            -          0.4
Cumulative Effect of Change in Accounting Principle,
  net of taxes                                                   -        (34.7)
                                                          --------     --------
Net Income                                                $  152.2     $   69.9
                                                          ========     ========

(a)  Certain  prior year  amounts  have been  reclassified  to conform  with the
     current year's presentation.
(b)  Includes non-hedge derivatives that are not part of operating profit.


                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
                                   (Unaudited)

                                                           Three Months Ended
                                                                March 31,
                                                          ---------------------
(Millions of dollars)                                       2004        2003 (a)
                                                          --------     --------
Selected Exploration and Production Information
-----------------------------------------------
Revenue, excluding marketing revenue                      $  752.1     $  736.1
                                                          --------     --------
Production Costs -
  Lease operating expense                                     88.9         87.9
  Production taxes                                            15.1         14.4
                                                          --------     --------
    Total                                                    104.0        102.3
Depreciation and Depletion                                   161.7        156.7
Accretion Expense                                              6.6          6.2
Impairments on Assets Held for Use                            13.2          5.1
Loss (Gain) Associated with Assets Held for Sale               3.4         (5.2)
General and Administrative Expense                            31.2         22.0
Transportation Expense                                        26.8         21.7
Gas Gathering, Pipeline and Other Expenses                    24.9         15.8
Exploration Expense                                           50.6        140.5
                                                          --------     --------
    Total Costs and Expenses                                 422.4        465.1
                                                          --------     --------
      Net, excluding marketing activities                    329.7        271.0
Marketing - gas sales revenue                                 81.7         59.8
Marketing - gas purchase cost (including transportation)     (81.5)       (58.6)
                                                          --------     --------
     Operating Profit                                     $  329.9      $ 272.2
                                                          ========     ========

Other Information, Net of Income Taxes
--------------------------------------
Commodity and Other Derivatives and Devon Stock
  Revaluation                                             $    0.5     $   (6.4)
Foreign Currency Gains (Losses)                               (1.3)         4.0
Impairments on Assets Held for Use                            (8.6)        (3.3)
Gain (Loss) Associated with Assets Held for Sale              (2.3)         3.0
Litigation Reserve                                               -         (4.2)
Costs Related to Chemical Plant Shutdown                       1.2         (4.8)
Environmental Expenses, Net of Reimbursements                 (0.1)       (10.4)
Gain on Sale of Devon Stock                                    5.8            -
Other Items                                                   (2.4)        (1.0)
                                                          --------     --------
  Total                                                   $   (7.2)    $  (23.1)
                                                          ========     ========

Selected Balance Sheet Information
----------------------------------
Cash                                                      $  143.5     $   80.7
Current Assets                                             1,690.7      1,279.7
Total Assets                                               9,941.2      9,892.1
Current Liabilities                                        2,062.3      1,515.2
Total Debt                                                 3,481.6      3,754.7
Stockholders' Equity                                       2,650.0      2,563.5

Selected Cash Flow Information
------------------------------
Cash Provided by Operating Activities                     $  274.6     $  321.7
Depreciation, Depletion and Amortization
  (including asset impairments and gain/loss on assets
   held for sale)                                            219.7        212.7
Dividends Paid                                                45.4         45.2
Capital Expenditures (including dry hole expense) -
  Exploration and production                              $  145.8     $  287.4
  Chemicals - Pigment                                         20.0         15.5
  Chemicals - Other                                            1.8          1.1
                                                          --------     --------
                                                             167.6        304.0
  All other                                                    2.2          2.0
                                                          --------     --------
  Total Capital Expenditures (including dry hole expense) $  169.8     $  306.0
                                                          ========     ========

(a)  Certain  prior year  amounts  have been  reclassified  to conform  with the
     current year's presentation.


                 KERR-McGEE CORPORATION AND SUBSIDIARY COMPANIES
                                   (Unaudited)

                                                            Three Months Ended
                                                                March 31,
                                                          ---------------------
                                                            2004         2003
                                                          --------     --------


Crude oil & condensate production (thousands of bbls/day)
  Domestic -
    Offshore                                                  57.5         59.7
    Onshore                                                   18.8         21.3
  North Sea                                                   66.9         80.1
  China                                                          -          4.3
                                                          --------     --------
    Total Continuing Operations                              143.2        165.4
  Discontinued Operations                                        -          2.4
                                                          --------     --------
    Total                                                    143.2        167.8
                                                          ========     ========

Average price of crude oil sold (per bbl)
  Domestic -
    Offshore                                              $  28.02     $  26.29
    Onshore                                                  28.10        27.57
  North Sea                                                  26.49        27.09
  China                                                          -        31.12
    Average for Continuing Operations                        27.30        26.97
    Discontinued Operations                               $      -     $  24.47

Natural gas sold (MMCF/day)
  Domestic -
    Offshore                                                   328          286
    Onshore                                                    322          369
  North Sea                                                    113          106
                                                          --------     --------
    Total                                                      763          761
                                                          ========     ========

Average price of natural gas sold (per MCF)
  Domestic -
    Offshore                                              $   5.69     $   5.38
    Onshore                                                   5.33         4.59
  North Sea                                                   4.41         3.35
  Average                                                 $   5.35     $   4.71

Titanium dioxide pigment production
  (thousands of tonnes)                                        137          130