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.
                                          SUBJECT COMPANY SEC FILE NO. 001-14256



The communication  filed herewith is a schedule of new hedges issued on April 7,
2004,  in  connection  with the merger of  Kerr-McGee  Corporation  and Westport
Resources Corporation.

                               New Hedges
      Applicable to the Kerr-McGee Corporation & Westport Resources Merger


As of April 2004

Hedges below correspond to Westport Resources production only


                                            2004 (1)                            2005                              2006
                                 ---------------------------       ----------------------------      ----------------------------
Crude Oil ($/Barrel)             Avg Price / Collar     BOPD       Avg Price / Collar     BOPD       Avg Price / Collar     BOPD
                                 ------------------    -----       ------------------    ------      ------------------    ------
                                                                                                         

   Fixed-price swaps (WTI)                   $32.60    9,000                                  0                                 0

   Costless collars (WTI)                                  0          $28.50 - $31.89    14,000         $27.00 - $30.58    19,000
                                                       -----                             ------                            ------

      Total                                            9,000                             14,000                            19,000
                                                       =====                             ======                            ======




                                            2004 (1)                            2005                              2006
                                 -----------------------------     -----------------------------     -----------------------------
Natural Gas ($/MMBtu)            Avg Price / Collar    MMBtu/D     Avg Price / Collar    MMBtu/D     Avg Price / Collar    MMBtu/D
                                 ------------------    -------     ------------------    -------     ------------------    -------
                                                                                                         

   Fixed-price swaps (NYMEX)                  $5.96    185,000                                 0                                 0

   Costless collars (NYMEX)                                  0          $5.00 - $6.25    280,000          $4.75 - $5.51    340,000
                                                       -------                           -------                           -------

      Total                                            185,000                           280,000                           340,000
                                                       =======                           =======                           =======


Notes:
------
MMBtu/D = million British thermal units per day
(1) 2004 hedges only represent the second half of 2004, July through December.


--------------------------------------------------------------------------------
        ** Cautionary Statement Concerning Forward-Looking Statements **

The information  contained in this table  represents  current hedging  positions
entered into in  association  with the  Kerr-McGee - Westport  Resources  merger
announced on April 7, 2004.  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  Kerr-McGee's  Annual Report on Form
10-K  and  other  SEC  filings.  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

THIS  HEDGING  SCHEDULE  IS NOT AN OFFER TO SELL THE  SECURITIES  OF  KERR-McGEE
CORPORATION AND IT IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES.

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

The joint proxy  statement/prospectus will be filed with the U.S. Securities and
Exchange Commission (SEC) by Kerr-McGee Corporation and Westport Resources Corp.
Investors  and  security  holders  may  obtain a free  copy of the  joint  proxy
statement/prospectus  when it becomes  available  and other  documents  filed or
furnished by Kerr-McGee  Corporation or Westport Resources Corp. with the SEC at
the SEC's website at www.sec.gov. The 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
transactions  contemplated  by  the  merger  agreement.   Information  regarding
Kerr-McGee's  directors and officers is available in the Proxy Statement for its
2004 Annual Meeting of Stockholders,  filed March 26, 2004 with the SEC, and its
Annual  Report on Form  10-K,  filed  March 12,  2004 with the SEC.  Information
regarding Westport  Resources'  directors and officers is available in the Proxy
Statement for its 2003 Annual Meeting of Stockholders, filed April 21, 2003 with
the SEC. Other  information  about the participants in the solicitation  will be
set forth in the Joint Proxy  Statement/Prospectus  and other relevant materials
to be filed with the SEC.

Safe Harbor Language on Forward Looking Statements:

(Statements  in this hedging  schedule  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 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 for 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 and Westport  Resources'  Annual Report on Form 10-K as well
as other of their SEC filings.