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





Set forth below is a memorandum  sent by David Hager to employees of  Kerr-McGee
Corporation in connection with the merger of Kerr-McGee Corporation and Westport
Resources Corporation.



[GRAPHIC OMITTED][GRAPHIC OMITTED]


To:      All Kerr-McGee Employees

From:    Dave Hager, Senior Vice President of Oil & Gas

Date:    May 26, 2004

     Following  the   Kerr-McGee/Westport   Resources  merger  announcement,   a
transition team was formed with members from both companies. During the past few
weeks,  the team has  been  collecting  and  consolidating  information  on both
companies and identifying synergies, with a goal of saving $40 million annually.

     In  addition,  the  team  has  completed  much  of the  new  organizational
structure,  and  discussions  regarding  potential  positions are under way with
employees  from both  companies.  At this time, we are announcing the management
teams reporting to my direct reports.  The management team for Oil & Gas remains
the same as we announced in April.  Current  Westport  employees will not assume
their new Kerr-McGee position until the merger is completed.

Following are my direct reports and their reports:

Tim Martin, vice president, exploration and development - international
o    Michael Verm, vice president of Kerr-McGee China Petroleum Ltd. (Beijing)
o    Peter Addy, director of international deepwater development
o    Dave Christian, vice president of international land and negotiation
o    Bronwyn Clear, director of international exploration
o    Steve Daines, director of U.K. exploration (Aberdeen)
o    Joanne Heather, manager of planning

Chuck Meloy, vice president,  exploration,  production and development - Gulf of
Mexico
o    Jeff Dunstone, director of Gulf of Mexico production
o    Craig Koontz, director of Gulf of Mexico development
o    Frank Patterson, vice president of Gulf of Mexico exploration
o    John Roffers, director of business development
o    Mike Stockinger, vice president of drilling
o    Don Vardeman, director of facility engineering
o    Jim Bryan, director of Gulf of Mexico land

Darrell Hollek, vice president,  exploration,  production and development - U.S.
onshore
o    Jim Kleckner, vice president of Rocky Mountain exploration and production.
o    Grant Henderson,  vice president of  Mid-Continent,  Gulf Coast exploration
     and production

Terence Jupp, vice president and managing director - U.K. operations.  Terence's
direct reports are:
o    Bart Boudreaux, director of drilling
o    Alan Curran, director of development
o    Ian Sharp, director of production
o    Harry Yorston, director of human resources and business services

Joe Flake, vice president of business services. Joe's direct reports are:
o    Lori Downey, manager of business planning
o    Andy Houser, vice president of marketing and materials
o    Kurt McCaslin, director of technology
o    Paul Morris, director of strategic planning
o    John Ford, director of reserves management

Susan Burke (Lloyd),  vice president of  environmental,  health and safety,  and
supply chain initiatives. Reporting to Susan are:
o    Stuart Wittenbach, manager of environmental, health and safety
o    Personnel associated with supply chain programs

Doug Lawler,  director of business  analysis.  Doug focuses on business analysis
and strategy, reporting to me.

     In addition to the above,  the Oil & Gas senior  management  team  includes
three  members of Shared  Services  departments  who have an indirect  reporting
relationship to me. They are adding new positions to their staffs as a result of
the merger. Following are my indirect reports and their staff members:

Joe Moore, director of human resources and administration for Oil & Gas, reports
to Fran Heartwell, vice president of human resources. Reporting to Joe are:
o    Patty Sweeney, manager of human resources - Rocky Mountain Region (Denver)
o    Jeff Rehwald,  manager of human resources - Gulf of Mexico  exploration and
     production groups, Mid-Continent and Gulf Coast areas
o    Linda Jeter,  manager of human resources - business services;  exploration;
     environmental, health and safety; and supply chain management
o    Lucho Vizcardo, advisor, compensation
o    Marianne  Switzer,  advisor,  organizational  development  and training and
     development

Tim Blaine,  vice president and controller for Oil & Gas,  reports to Mike Rauh,
vice president and controller. Reporting to Tim are:
o    Cindy Birdsong, manager of financial reporting
o    Russell Boath, finance director, U.K. operations (Aberdeen)
o    Armando Chincarini, manager of internal controls/special projects
o    Eddie Cox, director of operations accounting
o    Monte Hamblin, finance director, China operations (Beijing)
o    Darrell Havill, supervisor of international accounting
o    Mike Morella, finance director, Rocky Mountain operations (Denver)

Bill Layton,  vice president and general counsel for Oil & Gas,  reports to Greg
Pilcher,  senior  vice  president,  general  counsel  and  corporate  secretary.
Reporting to Bill are:
o    Joe Callaway, senior counsel (Dallas)
o    Robin Baxter, director of legal and supply chain management (Aberdeen)
o    Jeff Fiske, senior counsel (Denver)
o    Kevin Gottshall, staff counsel
o    Tom Kendall, senior counsel
o    Carlos Salazar, senior counsel
o    Eric Sigsbey, senior counsel (Austin)
o    Rand Sterling, senior counsel

     I want to thank our new  management  team  members for agreeing to serve in
leadership roles in our merged organization. Please join me in welcoming our new
employees and congratulating those taking on new roles.

     We will strive to complete the  organizational  structure and the placement
of personnel within the next several weeks.  All employees  impacted should know
their individual  situation by mid-June.  While the integration process is under
way,  your  continued  focus on daily  activities  is essential to achieving our
business goals. We will keep you updated on  developments.  In the meantime,  if
you have  questions,  please e-mail Jeff Rehwald,  Oil & Gas Human  Resources in
Houston,  at  jrehwald@kmg.com.  Questions  will  be  researched,  answered  and
addressed in future communications.


                          IMPORTANT LEGAL INFORMATION

     THIS  MEMORANDUM  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.