SCHEDULE 14A
                  Proxy Statement Pursuant to Section 14(a) of
              the Securities Exchange Act of 1934 (Amendment No.__)

Filed by the Registrant [ ]

Filed by a Party other than the Registrant [X]

Check the appropriate box:

[ ]     Preliminary Proxy Statement
[ ]     Confidential, for Use of the Commission Only (as permitted by
        Rule 14a-6(e)(2))
[ ]     Definitive Proxy Statement
[ ]     Definitive Additional Materials
[X]     Soliciting Material Pursuant toss. 240.14a-12

                             Kerr-McGee Corporation

                (Name of Registrant as Specified In Its Charter)

                                Icahn Partners LP
                          Icahn Partners Master Fund LP
                         High River Limited Partnership
                                  Carl C. Icahn
                                Keith A. Meister
                               Vincent J. Intrieri
                                JANA Partners LLC
                             JANA Master Fund, Ltd.
                               Barry S. Rosenstein
                                   August Roth


    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (check the appropriate box):

[X]  No fee required.

[ ]  Fee computed on table below per Exchange Act Rule 14a-6(i)(4) and 0-11.

     1)   Title of each class of securities to which transaction applies:

     2)   Aggregate number of securities to which transaction applies:

     3) Per unit  price  or  other  underlying  value  of  transaction  computed
pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee
is calculated and state how it was determined):



     4)   Proposed maximum aggregate value of transaction:

     5)   Total fee paid:

[ ]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
0-11(a)(2)  and  identify  the  filing  for  which the  offsetting  fee was paid
previously.  Identify the previous filing by registration  statement  number, or
the Form or Schedule and the date of its filing.

     1)   Amount Previously Paid:

     2)   Form, Schedule or Registration Statement No.:

     3)   Filing Party:

     4)   Date Filed:



         On April 13, 2005, Carl C. Icahn, Barry S. Rosenstein, certain of their
respective affiliates and Kerr-McGee  Corporation entered into an agreement (the
"Agreement"). A copy of the Agreement is attached hereto.

         On April 14, 2005, Carl C. Icahn and Barry S. Rosenstein issued a press
release (the "Press Release"). A copy of the Press Release is attached hereto.

CARL  C.  ICAHN,  BARRY  S.  ROSENSTEIN  AND  CERTAIN  RELATED  PARTIES  FILED A
PRELIMINARY PROXY STATEMENT WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL
8, 2005  RELATING TO THEIR  SOLICITATION  OF PROXIES  FROM THE  STOCKHOLDERS  OF
KERR-MCGEE  CORPORATION  WITH RESPECT TO THE 2005 ANNUAL MEETING OF KERR-MCGEE'S
STOCKHOLDERS.  THE PRELIMINARY  PROXY STATEMENT  CONTAINS  DETAILED  INFORMATION
REGARDING  THE NAMES,  AFFILIATIONS  AND  INTERESTS OF PERSONS WHO MAY BE DEEMED
PARTICIPANTS IN THE SOLICITATION OF PROXIES OF KERR-MCGEE'S STOCKHOLDERS.  THESE
PARTIES INTEND TO FILE A DEFINITIVE PROXY STATEMENT AND OTHER RELEVANT DOCUMENTS
WITH THE SECURITIES  AND EXCHANGE  COMMISSION.  SECURITY  HOLDERS ARE ADVISED TO
READ THE PROXY STATEMENT AND OTHER RELEVANT  DOCUMENTS BECAUSE THEY WILL CONTAIN
IMPORTANT  INFORMATION.  THE PROXY STATEMENT AND OTHER RELEVANT DOCUMENTS MAY BE
OBTAINED WITHOUT CHARGE FROM THE SECURITIES AND EXCHANGE COMMISSION'S WEBSITE AT
HTTP://WWW.SEC.GOV,  AND THE DEFINITIVE PROXY STATEMENT AND A FORM OF PROXY WILL
BE MAILED TO STOCKHOLDERS OF KERR-MCGEE CORPORATION.


                                                                  EXECUTION COPY

          AGREEMENT,   dated   April  13,   2005,   between   Kerr-McGee
          Corporation,  a  Delaware  corporation  (the  "COMPANY"),  the
          parties  listed on the  signature  pages of this  agreement as
          Icahn Parties (each, an "ICAHN PARTY" and,  collectively,  the
          "ICAHN  PARTIES"),  and the  parties  listed on the  signature
          pages of this  agreement as Jana Parties (each, a "JANA PARTY"
          and, collectively, the "JANA PARTIES").
--------------------------------------------------------------------------------

                  The Icahn Parties and the JANA Parties have filed  preliminary
proxy  materials for use in connection with the Company's 2005 Annual Meeting of
Stockholders  (collectively,  the "PROXY  MATERIALS")  with the  Securities  and
Exchange  Commission  (the  "SEC"),  and each of the Icahn  Parties and the JANA
Parties  has agreed to  immediately  suspend  their  solicitation  of proxies in
connection with such Annual Meeting and, upon the Company's acceptance of shares
for payment (the "TENDER  ACCEPTANCE") in the Tender Offer (defined  below),  to
terminate  such  solicitation  and to  withdraw  their  slate of nominees to the
Company's board of directors.  For the purpose of this Agreement,  the filing of
amendments to a proxy statement and the filing of other proxy materials with the
SEC intended to be  responsive to comments  from the SEC do not  constitute  the
solicitation of proxies, all in a manner not inconsistent with the terms of this
Agreement.

                  The Company  plans to announce a self tender  offer to acquire
between $3.96 billion and $4.0 billion in purchase  price of its common stock in
a modified  "Dutch" auction with a price range of $85 to $92 per share,  subject
to receipt of satisfactory financing pursuant to an existing bank commitment and
other customary conditions for issuer self tender offers (the "TENDER OFFER").

                  In  consideration  of  the  mutual  promises,   covenants  and
agreements contained herein, the parties agree as follows:

                  1.  Each  of the  Icahn  Parties  and  the  JANA  Parties,  as
applicable,  hereby suspend their solicitation of proxies in connection with the
Company's 2005 Annual Meeting of  Stockholders  until the earlier of (1) May 25,
2005,  (2) April 29, 2005 if the Company has not  commenced  the Tender Offer by
such date and (3) the date,  if any, on which the Tender Offer is  terminated or
abandoned or the terms of which are amended in any material  respect (other than
an amendment to increase the  aggregate  number of shares to be purchased in the
Tender Offer) (such  earlier date,  the  "SOLICITATION  DATE"),  after which the
Icahn  Parties  and  the  JANA  Parties  may at  their  election  commence  such
solicitation  in  accordance  with  terms of this  Agreement.  After the  Tender
Acceptance,  each of the Icahn  Parties and the JANA Parties  agrees to withdraw
its notice of intent to  nominate  persons  for  election  as  directors  of the
Company at the Company's  2005 Annual  Meeting of  Stockholders,  dated March 2,
2005,  pursuant to Article III, Section 10 of the Company's  By-Laws,  and shall
take all steps  necessary to cease,  and to cause all  Affiliates (as defined in
Rule 12b-2 under the Securities  Exchange Act of 1934, as amended (the "EXCHANGE
ACT"))  immediately to cease,  all efforts to nominate or elect directors to the
board of  directors  of the Company.  After the Tender  Acceptance,  each of the
Icahn Parties and the JANA Parties  further agrees to vote for, and to



cause all  Affiliates  to vote for, the  Company's  nominees for election at the
2005 Annual Meeting of Stockholders.

                  2. Each of the Icahn Parties and the JANA Parties agrees that,
for a period from the date of this Agreement  through and including May 10, 2008
(the "RESTRICTED PERIOD"), unless specifically invited in writing by the Company
and unless a majority of the  Continuing  Directors (as defined below) has given
its  approval to such  invitation,  no such party will,  nor will any such party
permit any of its  Affiliates to, nor will any such party cause any other person
to, in any manner, directly or indirectly:

                  (a) make, or propose  (publicly or  otherwise),  any tender or
         exchange offer,  merger or other  transaction  involving the Company or
         any  Company  Affiliate  or propose  that the  Company  or any  Company
         Affiliate engage in or enter into any transaction or similar activity,

                  (b)  make  or  propose   (publicly  or  otherwise)  any  proxy
         solicitation or solicitation of consents to vote any voting  securities
         of the Company;

                  (c) form,  join or in any way  participate  in a  "group"  (as
         defined under the Exchange  Act) in connection  with any of the actions
         set forth in clause (a);

                  (d) otherwise act, alone or in concert with others (including,
         without limitation,  any holder of securities or other interests in the
         Company  or any of its  subsidiaries),  to seek  representation  on the
         board of directors of the Company or any of its subsidiaries or to seek
         to control or influence the management,  board of directors or policies
         of the Company or any of its subsidiaries or to take any of the actions
         described in clause (a);

                  (e) initiate,  propose or otherwise  solicit  stockholders for
         the approval of any  stockholder  proposal (as  described in Rule 14a-8
         under the Exchange Act or otherwise) with respect to the Company; or

                  (f)  encourage,  assist  or advise  any third  party or entity
         (including,  without  limitation,  any  holder of  securities  or other
         interests in the Company) with respect to any of the matters  specified
         in this Section 2, or enter into any arrangements to so do.

Each of the Icahn Parties and the JANA Parties also agrees during the Restricted
Period not to request that the Company (or its directors, officers, employees or
agents),  directly or  indirectly,  amend or waive any provision of this Section
(including  this sentence),  or permit any of its Affiliates to so request.  For
purposes of this agreement:  (1) "CONTINUING DIRECTORS" means, as of any date of
determination, any member of the board of directors of the Company who (A) was a
member of such board of  directors on the date hereof or (B) was  nominated  for
election or elected to such board of  directors  with the approval of a majority
of the  Continuing  Directors who were members of such board of directors at the
time of such nomination or election;  (2) "PERSON" shall be broadly  interpreted
to include the media and any  corporation,  partnership,  group,  individual  or
other entity;  and (3) references to "THE

                                       2


COMPANY"  include  any  successor  to the Company  and any  subsidiaries  of the
Company.  Notwithstanding the foregoing,  (x) in the event the Tender Acceptance
has not occurred on or before the  Solicitation  Date,  the  provisions  of this
Section 2 shall be  suspended  with  respect to the Icahn  Parties  and the JANA
Parties until such time as the Tender Acceptance shall occur, and the provisions
of this Section 2 shall  terminate if the Tender  Acceptance has not occurred on
or before June 23, 2005,  (y) the limitation set forth in Section 2(c) shall not
apply with respect to any Icahn Party and its Affiliates  constituting a "group"
with any other Icahn Party or Icahn Party  Affiliate and (z) the limitations set
forth in Section  2(c)  shall not apply  with  respect to any JANA Party and its
Affiliates  constituting  a  "group,"  with any other  JANA  Party or JANA Party
Affiliate.

                  3. (a) The Company  agrees to commence  the Tender Offer on or
before April 29, 2005.

                  (b) The Company  agrees that,  while all other business may be
brought  before such Annual  Meeting,  it will cause its 2005 Annual  Meeting of
Stockholders to be adjourned on May 10, 2005 before the nominations or elections
of  directors  to a date no earlier  than June 7, 2005 and no later than June 9,
2005 for the purpose of  nominating  and electing  directors.  Provided that the
Tender  Acceptance  has not occurred and, in the event the Icahn Parties and the
JANA  Parties  notify the Company on or before June 5, 2005,  of their desire to
further  adjourn the  meeting,  the Company will cause the meeting to be further
adjourned  until a date no earlier than June 21, 2005 and no later than June 23,
2005.

                  (c) The Icahn Parties and the JANA Parties agree not to object
to an amendment to the  Company's  By-Laws  expressly  granting the Chairman the
authority  to adjourn any  meeting of  stockholders.  The Company  agrees not to
object  to the  Icahn  Parties'  notice  of  nominations  as  invalid  under the
Company's By-Laws or on the basis of claims asserted in the Action.

                  (d) Each of the Icahn Parties and the JANA Parties  agrees not
to comment or  otherwise  disclose  publicly  their plans and  intentions  as to
whether to tender  shares into the Tender Offer  (other than a  disclosure  that
such party intends to tender all shares then beneficially owned by such Party).

                  4. Immediately  after this Agreement is executed,  the Company
will inform the Court  having  jurisdiction  over the Action of the fact of this
settlement,  and thereafter will take all steps necessary to dismiss the Action,
with prejudice.

                  5. The  Company  agrees to issue a press  release  in the form
attached as Exhibit A. Each of the Icahn  Parties and the JANA Parties  agree to
issue a press  release in the form  attached  as  Exhibit B  promptly  after the
issuance of the Company release.  The press releases will be issued at or before
9:00 a.m. (EDT) on Thursday,  April 14, 2005.  Prior to May 25, 2005, and at all
times after the Tender Acceptance, the Company and each of the Icahn Parties and
the JANA Parties  further  agree not to make any  statements  inconsistent  with
their respective press releases.

                                       3



                  6. Each party to this Agreement  acknowledges  and agrees that
money damages would not be sufficient  for any breach of this  Agreement by such
party or any  Affiliate  of such  party,  and that the other party or parties to
this Agreement shall be entitled to equitable relief,  including  injunction and
specific  performance  as a remedy for such breach.  Such remedies  shall not be
deemed to be exclusive  remedies for such a breach,  but shall be in addition to
all other remedies available in law or equity.

                  7. (a) Effective upon the Tender Acceptance, each of the Icahn
Parties,  on behalf of itself and each of its direct and indirect  subsidiaries,
affiliates,  predecessors,  successors  and  assigns,  and each of such  party's
participants in the Proxy Contest (as defined  below),  and each of the past and
present   principals,   partners,   officers  and  directors  of  any  of  them,
individually  and   collectively   (each  such  Party  an  "ICAHN  PERSON"  and,
collectively,  the "ICAHN  PERSONS"),  hereby  releases,  acquits,  and  forever
discharges  the  Company,  and each of its  direct  and  indirect  subsidiaries,
parents,  affiliates,  predecessors,  successors  and  assigns,  and each of the
Company's  participants  in the Proxy Contest,  and each of the past and present
principals,  officers,  directors,  employees and attorneys of any of them, from
and with  respect  to any and all  claims,  counterclaims,  actions,  causes  of
action,  suits,  debts, dues, sums of money,  accounts,  reckonings,  covenants,
contracts, agreements, promises, damages, judgments, obligations, controversies,
costs,   expenses,   attorneys'  fees,  liens,   security  interests,   demands,
assertions, cross claims, disputes, indebtedness,  executions of any nature, and
liabilities  whatsoever  possible,  whether  at law or in equity,  statutory  or
otherwise,  whether known or unknown,  asserted or unasserted, of every kind and
nature  whatsoever,  that any Icahn Person ever had, now has, or hereafter  can,
shall, or may have against any Company Party (as defined below) for, upon, or by
reason of any matter,  cause of action, or thing,  whatsoever from the beginning
of the world to the date of the Tender Acceptance, asserted in or arising out of
or in connection with the Proxy Contest,  the Nominations or the Action (each as
defined  below),  but  expressly  excluding  (among other  claims) any claim for
breach of or to enforce this Agreement.

                  (b)  Effective  upon the Tender  Acceptance,  each of the JANA
Parties,  on behalf of itself and each of its direct and indirect  subsidiaries,
affiliates,  predecessors,  successors  and  assigns,  and each of such  party's
participants in the Proxy Contest (as defined  below),  and each of the past and
present   principals,   partners,   officers  and  directors  of  any  of  them,
individually   and   collectively   (each  such  Party  a  "JANA   PERSON"  and,
collectively,  the  "JANA  PERSONS"),  hereby  releases,  acquits,  and  forever
discharges  the  Company,  and each of its  direct  and  indirect  subsidiaries,
parents,  affiliates,  predecessors,  successors  and  assigns,  and each of the
Company's  nominees and participants in the Proxy Contest,  and each of the past
and present principals,  officers, directors,  employees and attorneys of any of
them,  from and with  respect  to any and all  claims,  counterclaims,  actions,
causes of action,  suits,  debts,  dues,  sums of money,  accounts,  reckonings,
covenants,  contracts,  agreements,  promises, damages, judgments,  obligations,
controversies,  costs,  expenses,  attorneys' fees, liens,  security  interests,
demands,  assertions,  cross claims, disputes,  indebtedness,  executions of any
nature,  and  liabilities  whatsoever  possible,  whether  at law or in  equity,
statutory or otherwise,  whether known or unknown,  asserted or  unasserted,  of
every kind and nature  whatsoever,  that any JANA Person  ever had,  now has, or
hereafter  can,  shall,  or may have against any Company Party for,  upon, or by
reason of any matter,  cause of action, or thing,  whatsoever from the beginning
of the world to the date of the Tender Acceptance, asserted in or arising

                                       4



out of or in connection  with the Proxy Contest,  the Nominations or the Action,
but  expressly  excluding  (among  other  claims)  any claim for breach of or to
enforce this Agreement.

                  (c)  Effective  upon the Tender  Acceptance,  the Company,  on
behalf of itself and each of its direct and indirect  subsidiaries,  affiliates,
predecessors,  successors  and assigns,  and each of the Company's  nominees and
participants in the Proxy Contest,  and each of the past and present principals,
officers and directors of any of them,  individually and collectively (each such
Party a "COMPANY  PARTY"  and,  collectively,  the  "COMPANY  PARTIES"),  hereby
releases,  acquits,  and forever discharges each Icahn Party and each JANA Party
and each of its direct and indirect subsidiaries, parents, partners, affiliates,
predecessors,  successors  and assigns,  and each of such  party's  nominees and
participants in the Proxy Contest,  and each of the past and present principals,
officers, directors,  partners, employees and attorneys of any of them, from and
with respect to any and all claims,  counterclaims,  actions,  causes of action,
suits, debts, dues, sums of money, accounts, reckonings,  covenants,  contracts,
agreements,  promises, damages, judgments,  obligations,  controversies,  costs,
expenses, attorneys' fees, liens, security interests, demands, assertions, cross
claims,  disputes,  indebtedness,  executions  of any  nature,  and  liabilities
whatsoever  possible,  whether  at law or in  equity,  statutory  or  otherwise,
whether  known or  unknown,  asserted  or  unasserted,  of every kind and nature
whatsoever,  that any Company Party ever had, now has, or hereafter can,  shall,
or may have against any Icahn Person or JANA Person for,  upon,  or by reason of
any matter,  cause of action,  or thing,  whatsoever  from the  beginning of the
world to the date of the Tender Acceptance,  asserted in or arising out of or in
connection  with the Proxy  Contest,  the  Nominations  or the  Action  (each as
defined  below),  but  expressly  excluding  (among other  claims) any claim for
breach of or to enforce this Agreement.

                  (d)   "PROXY   CONTEST"   means   the   actions,    omissions,
solicitations,  filings,  allegations,  campaign,  and events that were part of,
arose  from,  or were in  connection  with the  solicitations  of proxies by the
Stockholders  and the  participants  named in the  related  proxy  material  and
statements around the Company's 2005 Annual Meeting of Stockholders.

                  (e) The  "ACTION"  means the action  captioned  in  KERR-MCGEE
CORPORATION  VS.  (1)  CARL C.  ICAHN,  (2)  BARBERRY  CORPORATION,  (3)  HOPPER
INVESTMENTS,  LLC, (4) HIGH RIVER LIMITED PARTNERSHIP, (5) ICAHN PARTNERS MASTER
FUND LP, (6) ICAHN OFFSHORE LP, (7) CCI OFFSHORE LLC, (8) ICAHN PARTNERS LP, (9)
ICAHN  ONSHORE LP, (10) CCI ONSHORE  LLC,  (11) JANA  PARTNERS  LLC,  (12) BARRY
ROSENSTEIN,  AND (13) GARY CLAAR,  Civil Action No.  CV-05-276-F,  in the United
States District Court for the Western District of Oklahoma.

                  (f) "NOMINATIONS" means the Icahn Parties' nominations of Carl
C. Icahn and Barry Rosenstein to become members of the Board of Directors of the
Company, the Company's response to these nominations, and all related acts taken
by the Stockholders or the Company in relation thereto.

                  8. Any representation,  warranty, promise, covenant, agreement
or obligation of the Icahn Parties,  on the one hand,  and the JANA Parties,  on
the other hand, are several and not joint.

                                       5



                  9. This Agreement may be executed in one or more counterparts,
each of which shall be deemed to be an original but all of which  together  will
constitute one and the same agreement.

                  10. This Agreement is governed by the laws of the State of New
York  without  giving  effect to its  conflicts of laws  principles  or rules.

                  The parties have duly executed this agreement.

                                                          KERR-MCGEE CORPORATION


                                                          By:
                                                             -------------------
                                                             Name:
                                                             Title:

ICAHN PARTIES:
-------------


_____________________________________________________
CARL C. ICAHN


BARBERRY CORPORATION

By:  ________________________________________________
     Name:
     Title:


HOPPER INVESTMENTS, LLC


By:  ________________________________________________
     Name:
     Title:


HIGH RIVER LIMITED PARTNERSHIP


By:  ________________________________________________
     Name:
     Title:

                                       6



ICAHN PARTNERS MASTER FUND LP


By:  ________________________________________________
     Name:
     Title:


ICAHN OFFSHORE LP


By:  ________________________________________________
     Name:
     Title:


CCI OFFSHORE LLC


By:  ________________________________________________
     Name:
     Title:


ICAHN PARTNERS LP


By:  ________________________________________________
     Name:
     Title:


ICAHN ONSHORE LP


By:  ________________________________________________
     Name:
     Title:


CCI ONSHORE LLC


By:  ________________________________________________
     Name:
     Title:


JANA PARTIES:
------------

                                       7




_____________________________________________________

BARRY ROSENSTEIN


_____________________________________________________

GARY CLAAR

_____________________________________________________


JANA PARTNERS LLC

By:  ________________________________________________
     Name:
     Title:

                                       8



                                                                       Exhibit A

                       Kerr-McGee Reaches Settlement with

                          Icahn Group and JANA Partners

         Company Withdraws Litigation and Announces that Icahn and JANA
               Will Withdraw Board Nominees Pending Completion of
                       Announced Share Repurchase Program

         Oklahoma City, April 14, 2005 - Kerr-McGee Corp.  (NYSE: KMG) announced
today  that it has  entered  into a  settlement  with Mr.  Carl  Icahn,  certain
affiliated  funds and JANA Partners  LLC. As a result,  the company will dismiss
its complaint with prejudice filed March 10, 2005, in the United States District
Court for the Western District of Oklahoma.

         Kerr-McGee also announced that based on the company's recent actions to
enhance stockholder value,  including the previously announced separation of its
chemical business and recently  announced $4 billion share repurchase program in
the form of a modified "Dutch  Auction"  tender offer,  it has received  written
notice  from the  Icahn  Group  and JANA  Partners  confirming  that  they  will
immediately  cease  proxy  solicitation  activities.  The  Icahn  Group and JANA
Partners will withdraw their  alternate  board nominees from  consideration  for
election to the board of directors of  Kerr-McGee  on  successful  completion of
Kerr-McGee's  repurchase program.  Kerr-McGee has every expectation that it will
complete the repurchase program by mid-May, 2005.

          "This  settlement  enables the company to deliver on its commitment to
deliver stockholder value and to advance its strategy as a pure-play exploration
and  production  company," said Luke R. Corbett,  Kerr-McGee  chairman and chief
executive  officer.  "Our  conversations  with  Mr.  Icahn  and JANA  have  been
productive."

         Kerr-McGee  is an Oklahoma  City-based  energy and  inorganic  chemical
company with worldwide  operations and assets of more than $14 billion. For more
information visit the company's website at WWW.KERR-MCGEE.COM.

                                       9



                                                                       Exhibit B

           ICAHN GROUP & JANA PARTNERS COMMEND KERR-MCGEE FOR AGREEING
                   TO TAKE STEPS TO ENHANCE SHAREHOLDER VALUE

New York,  April 14, 2005 - Carl Icahn and Barry Rosenstein today announced that
they commend Kerr-McGee's  management and its Board of Directors for engaging in
productive  discussions  with us and other  shareholders,  and  agreeing to take
steps to enhance  shareholder value. They stated that "we believe that the steps
that Kerr-McGee has undertaken will prove beneficial to all its shareholders."

Messrs.  Icahn and Rosenstein  indicated that they were  suspending  their proxy
contest  for seats on the  Board of  Directors  of the  Kerr-McGee  pending  the
commencement  and  successful  completion  of the tender offer for shares of its
common stock which Kerr-McGee plans to commence  shortly.  When the tender offer
is  successfully  completed,  the proxy contest will be terminated  said Messrs.
Icahn and Rosenstein.

                                       10


                              FOR IMMEDIATE RELEASE

         ICAHN GROUP & JANA PARTNERS COMMEND KERR-MCGEE FOR AGREEING TO
                    TAKE STEPS TO ENHANCE SHAREHOLDER VALUE

New York, New York, April 14, 2005
Contact:  Susan Gordon (212) 702-4309

Carl Icahn and Barry  Rosenstein  today announced that they commend Kerr McGee's
management  and its Board of Directors  "for engaging in productive  discussions
with  us  and  other  shareholders,  and  agreeing  to  take  steps  to  enhance
shareholder  value." They stated that "we believe that the steps that Kerr-McGee
has undertaken will prove beneficial to all its shareholders."

Messrs.  Icahn and Rosenstein  indicated that they were  suspending  their proxy
contest  for  seats  on  the  Board  of  Directors  of  Kerr-McGee  pending  the
commencement  and  successful  completion  of the tender offer for shares of its
common stock which Kerr-McGee plans to commence  shortly.  When the tender offer
is successfully  completed,  the proxy contest will be terminated,  said Messrs.
Icahn and Rosenstein.

                                       ###