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 transcript  of the interim  earnings  conference  call made
today by Kerr-McGee Corporation. It contains information related t the merger of
Kerr-McGee Corporation and Westport Resources Corporation.

         Date/Time of Call:  May 26, 2004 at 10:00 a.m.

         Speaker:  Rick Buterbaugh

     Thank  you,  Louise,  and good  morning.  Today's  brief  call will  update
previous  estimates  provided by the company  and will  contain  forward-looking
statements. Please note that actual results or events may differ materially from
our expectations or projections.  Information  concerning factors and risks that
could cause material  differences  is identified in the Risk Factors  section of
the company's Annual Report on Form 10-K and other SEC filings.

     As announced last Friday,  the SEC has declared the registration  statement
for the Kerr-McGee/Westport  merger effective.  Shareholders of record on May 20
of this year,  are being mailed the joint proxy  statement  and  prospectus  and
special meetings of both company's  shareholders  will be held on June 25, 2004.
We  expect  to close  this  transaction  later  that day.  Further  details  are
available in the S-4 filing with the SEC.  The joint proxy  statement/prospectus
is available on the company's website at www.kerr-mcgee.com. As a result of this
transaction,  all guidance provided for the second half of the year incorporates
the impact of Westport operations, effective July 1, 2004.

     In our exploration and production unit,  total production  volumes continue
to be on-track and we have tightened the range of our projections for the second
quarter to reflect actual results to date. Our major  developments  still remain
on or ahead of schedule.  First production from Red Hawk is expected in July and
we now expect first oil from Bohai Bay during the third quarter,  which is about
four months ahead of schedule.  Therefore,  we have increased our expectation of
average daily volumes for the year to  approximately  306,000 to 323,000 barrels
of equivalent.

     Second-quarter projections for oil production have increased into the range
of 130,500 to 136,500 barrels per day. This reflects greater processing of NGL's
and strong performance from Nansen and Boomvang in the gulf as well as generally
better North Sea volumes.  Second-quarter  natural gas production is expected in
the range of 735 - 785  MMCF/D,  with about 85% of this  volume  coming from the
United States. With these volumes, we believe the range for total production for
the second quarter to be approximately 253,000 to 267,300 BOE per day.

     A detailed  quarterly  breakout of expected  production volumes for 2004 by
product   and  by   region   is   available   on  the   company's   website   at
www.kerr-mcgee.com  by accessing  the  guidance  tab in the  investor  relations
section.

     For the second  quarter to date,  benchmark  NYMEX prices for WTI and Brent
have averaged approximately $38.25 and $34.90 per barrel, respectively.  This is
up more  than  $3.00  per  barrel  for WTI and up $3.60 per  barrel  for  Brent,
relative  to the  first-quarter  averages.  You will  recall that we have hedged
about 75% of our  projected  second-quarter  U.S.  oil volumes at an average WTI
price of $28.23  per barrel  and about 85% of our  second-quarter  North Sea oil
volumes at an average Brent price of $26.27 per barrel.

     For  reference,  the NYMEX gas prices have averaged about $6.05 per million
Btu for the second quarter to date,  which is up more than $0.30 per million Btu
versus   the   first-quarter   average.   About  80%  of  our  total   projected
second-quarter  U.S.  gas volumes are hedged at  fixed-price  swaps at $4.74 per
million Btu versus the collars that were in place during the first quarter.

     The company has not added any additional  incremental hedges since the last
update. A detailed listing of outstanding oil and gas hedges for Kerr-McGee, the
hedges associated with the  Kerr-McGee/Westport  merger and Westport's  existing
hedges are available on the company's  website.  The three documents are located
in the investor relations section within the guidance.

     Oil and gas marketing  revenue is expected to be approximately  $85 million
for the second  quarter,  primarily  associated with our operations in the Rocky
Mountain  area.  There will also be a  corresponding  offset in  marketing - gas
purchase  costs,  and therefore,  no significant  impact on operating  profit is
expected from these activities.

     Our expectation for total  production costs for the second quarter is about
$4.40 per  barrels of  equivalent.  This  includes  about $3.70 per BOE of lease
operating  expense.  Unit LOE by region on a barrel of equivalent basis includes
about  $2.70 for the U.S.  Onshore  region,  about  $3.05 for the gulf and about
$5.40 in the North  Sea.  For the year  including  six  months  of the  Westport
properties, total unit LOE is projected at $3.75. Given Westport's large onshore
weighting,  we anticipate unit production  taxes will increase during the second
half of the year to approximately $1.20 per barrels of equivalent.

     Unit  transportation   costs  for  the  second  quarter  are  projected  at
approximately  $1.10/BOE.  Exploration &Production of G&A is expected to be flat
for the second quarter when compared to first quarter results.

     Our expectation for second-quarter  unit depreciation and depletion charges
for oil and gas activities is about $6.80/barrels of equivalent.  Second-quarter
accretion expense for future  abandonment is estimated to be about $7.0 million.
As a result of the transaction with Westport,  Kerr-McGee will record Westport's
assets and liabilities at fair value as of the acquisition  date.  Consequently,
the  depreciation and depletion rate for E&P on a combined basis is projected to
increase to approximately $8.00/barrels of equivalent for the second half of the
year.

     The second-quarter exploration expense is projected to be approximately $65
million.  Total 2004 exploration  expense is now projected at $350 million which
includes about $70 million of non-cash charges  associated with the amortization
of non-producing  leasehold costs.  The increase in annual  exploration  expense
results from the addition of expected  Westport  activity for the second half of
the year.

     In the Gulf of Mexico,  we are drilling an  appraisal  well at Garden Banks
244. The well is currently  drilling at approximately  15,000 feet in route to a
total dept of 25,000 feet.  Kerr-McGee is the operator with 40% working interest
in the prospect.

     In Brazil,  drilling has finished at the Dragon prospect on BM-C-7 block in
the Campos  basin.  We have  collected  oil samples,  the reservoir is currently
being  cored and the well is being  logged for  further  evaluation.  Kerr-McGee
participates  in this prospect with a 33%  interest.  Within the next week,  the
Tartaruga prospect on BM-ES-9 block in Brazil and the Rak #1 prospect in Morocco
are expected to spud. Kerr-McGee participates with a 50% and an 11.25% interest,
respectively in these wells.

     Our major capital development programs are each progressing well and remain
on schedule.  At the Gunnison  field,  we have completed the third dry-tree well
and have begun  completion  work on the  fourth.  We still  expect to have seven
dry-tree wells completed by year-end.  Kerr-McGee  operates  Gunnison with a 50%
working interest.

     As I  mentioned,  the Red Hawk  project  remains  on  schedule  with  first
production  expected in July. The two subsea wells are already completed and are
already  tied-back  to the  facility.  Commissioning  activities  are  on-going.
Kerr-McGee operates Red Hawk with a 50% interest.

     The 100%-owned Constitution  development remains on schedule.  Expansion of
the  topside's  processing   capacities  are  being  evaluated  to  support  the
Ticonderoga discovery to the south of constitution. First production is expected
late in the second quarter of 2006.

     In China,  the Bohai Bay  development  continues to move  further  ahead of
schedule.  The FPSO is  expected  to leave  the dock in the next few weeks to be
connected to the  single-point  mooring  system.  Production of first oil is now
expected  during the third  quarter.  Development  planning is ongoing for other
discoveries  in the area including CFD 11-6, CFD 12-1 and CFD 12-1 South fields.
The area  continues to enhance value and become a core play for  Kerr-McGee.  We
operate this development with a 40% interest.

     Development  planning for our recent North Sea discoveries at James,  Donan
and Affleck are each  progressing.  James is being developed as a subsea tieback
to our Janice facility with first  production  expected in early 2005. First oil
from Donan and Affleck are expected in mid 2006.

     We continue to actively pursue our exploitation  opportunities.  Onshore at
the Wattenberg field in Colorado, our tri-frac,  deepening and new well programs
are currently in progress to enhance  production  volumes and grow reserves.  We
have  already  performed  44  recompletions  this  year  including  refracs  and
tri-fracs.  These are yielding high returns from the Codell  formation.  We also
have  drilled 95 new wells in the Codell and  J-sand  formations  including  our
fifth-spot  program.  Each of these new wells  offers the future  potential  for
refrac and tri-frac  technology and adds to our inventory of literally thousands
of  projects  with  in this  area.  Additional  recovery  strategies  are  being
developed to further enhance the value from the Wattenberg field.

     The south Texas Rincon acquisition has proved to be a strategic  complement
to our U.S.  onshore asset base.  Since the acquisition  last  September,  eight
successful wells have been drilled and more than 30 workovers and  recompletions
have been performed.  The Rincon  development  program is yet another example of
Kerr-McGee's  ability  to  execute a value  enhancement  program  from  acquired
producing properties.

     We  expect  to  quickly  capitalize  on  the  engineering  and  development
strategies  that are being employed in the  Wattenberg  field and in south Texas
when applied to the Greater Natural Buttes area and other Westport assets.

     In the U.K. North Sea, a three-well development drilling program around the
Gryphon field is ongoing and has yielded very encouraging  results to-date.  The
first well has a 1,500-foot horizontal pay section and tested at a gross rate of
6,500 BOPD with minimal drawdown.  Completion  operations are in progress on the
second  well  which  tested  a new  geologic  concept.  The  second  well  has a
horizontal  pay  section of  approximately  1,000 feet and will be tested in the
next several weeks. The third well will be subsequently drilled and all three of
these  wells are  expected  to be on line late in the  third  quarter  following
subsea tieback to the Gryphon FPSO. You will recall that Kerr-McGee  acquired an
additional  25% interest in the Gryphon  field late last year bringing our total
interest to Grypohon 86.5%.

     Also in the North Sea,  the  exploitation  asset  teams  working the Janice
field have generated a new waterflood  redirection  strategy that is expected to
result in higher recoveries from the Fulmar formation. Low-cost intervention and
modification to the current waterflood program are also expected to yield higher
oil rates and higher ultimate  recoveries.  Additional  development  drilling is
being evaluated to fully exploit this new strategy. If successful, this strategy
could reduce the total capital required to fully development of the field.

     In our chemical  unit,  total  operating  profit for the second  quarter is
still expected in the range of $8 - $10 million, as previously guided. We remain
optimistic  regarding the global price  stabilization with positive signs in the
Americas and Asia.  Europe  continues to provide downward pricing pressure given
the slower economic recovery,  recent terrorism acts and the strong Euro against
the dollar.  Initial signs are positive for the spring  coating  season in North
America.  As a  reminder,  the spring  painting  season  last year was  severely
effected by wet weather all along the east coast.

     The  corporate  portion of G&A and other costs are expected to be about $31
million on a pre-tax  basis in the second  quarter.  These  amounts  exclude the
impact of gains or losses on foreign currency and derivatives,  which can not be
determined  prior to quarter-end.  Loss on equity  investments is expected to be
about $9 million dollars for the quarter.  Net interest  expense for the quarter
is expected at about $55 million.

     A replay of this call will be available  temporarily  through the company's
website and can be accessed at kerr-mcgee.com.  An additional interim conference
call will be held on Wednesday,  June 23 and actual second-quarter  results will
be  released  on July 28,  2004.  We will host a  conference  call at 11:00 a.m.
eastern that same day.  Details about this and future interim calls,  as well as
information  on  upcoming  presentations  by  members  of the  company's  senior
management team, will be posted on the company's website.

     Thank you for your time and  interest  in  Kerr-McGee  this  morning.  This
concludes our interim call.





                          IMPORTANT LEGAL INFORMATION

THE TRANSCRIPT 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 or
Westport  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 or Westport 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 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.  Information  regarding
Kerr-McGee's and Westport's  respective 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.