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 a hedging schedule  presented in connection
with the  proposed  merger of  Kerr-McGee  Corporation  and  Westport  Resources
Corporation.




                         Westport Resources Corporation
                            Oil and Gas Derivatives

As of May 2004

                                                    2004                                          2005                   2006
                     -------------------------------------------------------------------  --------------------  --------------------
                         Second Quarter         Third Quarter          Fourth Quarter          Full Year             Full Year
                     ---------------------  ---------------------  ---------------------  --------------------  --------------------
Crude Oil ($/Barrel)    Avg Price/             Avg Price/             Avg Price/             Avg Price/            Avg Price/
                            Collar    BOPD         Collar    BOPD         Collar    BOPD         Collar   BOPD         Collar   BOPD
                     -------------  ------  -------------  ------  -------------  ------  -------------  -----  -------------  -----
                                                                                                 

  Fixed-price
    swaps (WTI)             $25.87   9,000         $25.87   9,000         $25.87   9,000       $29.23    3,000              -      -

  Three-way
    Collars (NYMEX)  $24.38-$27.71   4,000  $24.38-$27.71   4,000  $24.38-$27.71   4,000  $25.00-$28.23  5,000  $25.00-$28.65  2,000
  Three-way
    Average Floor           $19.25                 $19.25                 $19.25                 $20.93                $20.88
                                    ------                 ------                 ------                 -----                 -----

  Total                             13,000                 13,000                 13,000                 8,000                 2,000
                                    ======                 ======                 ======                 =====                 =====



                     ---------------------  ---------------------  ---------------------  --------------------  --------------------
Natural Gas
 ($/MMBtu)(1)         Avg Price/             Avg Price/             Avg Price/
                          Collar   MMBtu/D       Collar   MMBtu/D       Collar   MMBtu/D    Avg Price  MMBtu/D    Avg Price  MMBtu/D
                     -----------   -------  -----------   -------  -----------   -------  -----------  -------  -----------  -------
                                                                                                
  Fixed-price
    swaps (NYMEX)          $4.42   110,000        $4.42   110,000        $4.42   110,000        $4.42   55,000            -        -

  Fixed-price
    swaps (NWPRM)          $3.33    30,000        $3.33    30,000        $3.33    30,000            -        -            -        -

  Costless Collars
    (NYMEX)          $3.70-$4.00    44,835  $3.70-$4.00    44,674  $3.70-$4.00    44,674  $4.09-$5.57   60,000            -        -

  Three-way Collars
    (NYMEX)          $4.00-$5.00    10,000  $4.00-$5.00    10,000  $4.00-$5.00    10,000            -        -  $4.00-$6.00   20,000
  Three-way Average
    Floor                  $3.15                  $3.15                  $3.15                                        $3.04
                                   -------                -------                -------               -------                ------

  Total                            194,835                194,674                194,674               115,000                20,000
                                   =======                =======                =======               =======                ======


Basis swaps versus NYMEX
  ($/MMBtu) (1)

  NWPRM                    $0.66    10,000        $0.66    10,000        $0.66    10,000        $0.78   10,000            -        -

  CIG                      $0.76    25,000        $0.76    25,000        $0.76    25,000            -        -            -        -
                                    ------                 ------                 ------                ------                ------
  Total                             35,000                 35,000                 35,000                10,000                     -
                                    ======                 ======                 ======                ======                ======



Notes:
------
MMBtu/D = million British thermal units per day
NWPRM = Northwest Pipeline Rocky Mountain Index

(1)  Derivative  transactions  are on a million  Btu (MMBtu)  basis.  Kerr-McGee
     reports production/sales on a MCF basis. The conversion rate is 1.080 MMBtu
     to 1 MCF.


        ** Cautionary Statement Concerning Forward-Looking Statements **

The  information   contained  in  this  table  represents   Westport   Resources
Corporation's  current hedging  positions.  These hedging positions were entered
into  based on  projected  production  volume  forecasts.  These  forecasts  are
estimated  projections  that may or may not occur in the future,  and constitute
"forward-looking  statements"  within  the  meaning  of the  Private  Securities
Litigation  Reform Act of 1995, in those documents in which such projections are
provided.  Future  results and  developments  set forth in this statement may be
affected by numerous  uncertainties,  factors and risks, such as but not limited
to the accuracy of the assumptions  that underlie the statement,  the success of
the oil and gas exploration and production program, drilling risks, market value
of oil and gas, uncertainties in interpreting  engineering data, changes in laws
and regulations,  the ability to respond to challenges in international markets,
political  or  economic  conditions,  trade and  regulatory  matters,  and other
factors  and risks  identified  in the Risk  Factors  section of the Joint Proxy
Statement/Prospectus  of  Kerr-McGee  and  Westport  on Form  424(B)(3).  Actual
results and developments  may differ  materially from those expressed or implied
in this statement.  Therefore,  the information  contained in this statement may
not be accurate.  Kerr-McGee does not undertake to update, revise or correct any
of the forward-looking information.


               Important legal information contained on page two.


                          IMPORTANT LEGAL INFORMATION

THIS TABLE 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  BECAUSE IT CONTAINS
IMPORTANT INFORMATION.

     Kerr-McGee  Corporation  has filed a  Registration  Statement on Form S-4/A
with the U.S.  Securities and Exchange  Commission (SEC) containing a definitive
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  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   definitive   joint  proxy
statement/prospectus contained in the above referenced Registration Statement on
Form S-4/A filed with the SEC on May 18, 2004.