UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 7)*

                             Kerr-McGee Corporation
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    492386107
                                 (CUSIP Number)

                               Marc Weitzen, Esq.
                                 General Counsel
                  Icahn Associates Corp. & affiliated companies
                          767 Fifth Avenue, 47th Floor
                            New York, New York 10153
                                 (212) 702-4388

           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                February 1, 2006
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  that is the subject of this  Schedule  13D, and is filing this
schedule because of ss.ss.240.13d-1(e),  240.13d-1(f) or 240.13d-1(g), check the
following box / /.

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       High River Limited Partnership

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(d) or 2(e)     /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       938,758

8   SHARED VOTING POWER
       0

9   SOLE DISPOSITIVE POWER
       938,758

10  SHARED DISPOSITIVE POWER
       0

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       938,758

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       0.80%

14  TYPE OF REPORTING PERSON
       PN



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Hopper Investments LLC

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       938,758

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       938,758

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       938,758

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       0.80%

14  TYPE OF REPORTING PERSON
       OO



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Barberry Corp.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       1,048,248

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       1,048,248

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       1,048,248

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       0.90%

14  TYPE OF REPORTING PERSON
       CO



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Icahn & Co., Inc.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       109,490

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       109,490

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       109,490

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       0.09%

14  TYPE OF REPORTING PERSON
       CO



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Icahn Partners Master Fund L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       1,877,675

8   SHARED VOTING POWER
       0

9   SOLE DISPOSITIVE POWER
       1,877,675

10  SHARED DISPOSITIVE POWER
       0

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       1,877,675

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       1.62%

14  TYPE OF REPORTING PERSON
       PN



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Icahn Offshore L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       1,877,675

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       1,877,675

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       1,877,675

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       1.62%

14  TYPE OF REPORTING PERSON
       PN



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       CCI Offshore LLC

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       1,877,675

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       1,877,675

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       1,877,675

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       1.62%

14  TYPE OF REPORTING PERSON
       OO



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Icahn Partners L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       2,315,315

8   SHARED VOTING POWER
       0

9   SOLE DISPOSITIVE POWER
       2,315,315

10  SHARED DISPOSITIVE POWER
       0

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       2,315,315

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       2.0%

14  TYPE OF REPORTING PERSON
       PN



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Icahn Onshore L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       2,315,315

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       2,315,315

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       2,315,315

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       2.0%

14  TYPE OF REPORTING PERSON
       PN



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       CCI Onshore LLC

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       2,315,315

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       2,315,315

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       2,315,315

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       2.0%

14  TYPE OF REPORTING PERSON
       OO



                                  SCHEDULE 13D

CUSIP No.  492386107

1   NAME OF REPORTING PERSON
       Carl C. Icahn

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (a) / /
       (b) / /

3   SEC USE ONLY

4   SOURCE OF FUNDS
       OO

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d) or 2(e)      /X/

6   CITIZENSHIP OR PLACE OF ORGANIZATION
       United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7   SOLE VOTING POWER
       0

8   SHARED VOTING POWER
       5,241,238

9   SOLE DISPOSITIVE POWER
       0

10  SHARED DISPOSITIVE POWER
       5,241,238

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       5,241,238

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
       4.52%

14  TYPE OF REPORTING PERSON
       IN




                                  SCHEDULE 13D

Item 1. Security and Issuer

     The  Schedule  13D  filed on March 3,  2005 by the  Reporting  Persons  (as
defined herein),  relating to the common stock,  $1.00 par value (the "Shares"),
of Kerr-McGee Corporation,  a Delaware corporation (the "Issuer"), as amended by
Amendment  No. 1 filed on March  11,  2005,  Amendment  No. 2 filed on March 24,
2005, Amendment No. 3 filed on April 4, 2005, Amendment No. 4 filed on April 14,
2005,  Amendment  No. 5 filed on April 18, 2005 and Amendment No. 6 filed on May
25, 2005, is hereby  further  amended as set forth below by this Amendment No. 7
to Schedule 13D. The address of the principal executive offices of the Issuer is
Kerr-McGee Center, 123 Robert S. Kerr Avenue, Oklahoma City, OK 73102.

Item 4. Purpose of Transaction

     Item 4 is hereby supplemented as follows:

     The Reporting  Persons have sold a portion of the Shares to take  advantage
of long-term capital gains treatment. Much to the credit of CEO Luke Corbett and
his management team, the Issuer has fully implemented the proposals put forth by
the Reporting Persons and shareholders have been well rewarded as a result.  The
Reporting  Persons  believe that the Issuer  remains  undervalued  and therefore
continue to hold a sizeable position in the Shares.

     The Reporting Persons reserve the right to acquire additional Shares at any
time and from time to time in the open market or  otherwise.  In  addition,  the
Reporting Persons may dispose of all or any portion of the Shares at any time or
from time to time in the open market or otherwise.

Item 5. Interest in Securities of the Issuer

     Item 5 is hereby supplemented as follows:

     (a) The  Reporting  Persons  may be  deemed  to  beneficially  own,  in the
aggregate,  5,241,238 Shares,  representing  approximately 4.52% of the Issuer's
outstanding  Shares (based upon the 115,992,412  Shares stated to be outstanding
as of October  31, 2005 by the Issuer in its  Quarterly  Report on Form 10-Q for
the quarterly  period ended  September 30, 2005,  filed with the  Securities and
Exchange Commission on November 9, 2005).

     (b) High River has sole voting power and sole dispositive power with regard
to 938,758 Shares. Each of Hopper,  Barberry and Carl C. Icahn has shared voting
power and shared  dispositive power with regard to such Shares.  Icahn & Co. has
sole voting power and sole dispositive power with regard to 109,490 Shares. Each
of Barberry  and Carl C. Icahn has shared  voting  power and shared  dispositive
power with regard to such  Shares.  Icahn  Master has sole voting power and sole
dispositive power with regard to 1,877,675 Shares.  Each of Icahn Offshore,  CCI
Offshore and Carl C. Icahn has shared voting power and shared  dispositive power
with  regard to such  Shares.  Icahn  Partners  has sole  voting  power and sole
dispositive  power with regard to 2,315,315 Shares.  Each of Icahn Onshore,  CCI
Onshore and Carl C. Icahn has shared voting power and shared  dispositive  power
with regard to such Shares.

     (c) The following table sets forth all transactions  with respect to Shares
effected since the most recent filing on Schedule 13D by the Reporting  Persons.
All such  transactions  were effected in the open market and the table  includes
commissions paid in per share prices.




                                   No. of Shares         Price
       Name              Date    Purchased (Sold)       Per Share
---------------------- --------- ----------------- -----------------
                                              

High River             06/03/05       (48,000)           73.5815
---------------------- --------- --------------    -----------------
High River             06/06/05        (4,540)           73.7312
---------------------- --------- --------------    -----------------
High River             06/09/05       (21,400)           73.5159
---------------------- --------- --------------    -----------------
High River             06/10/05        (1,280)           73.4979
---------------------- --------- --------------    -----------------
High River             06/13/05        (2,816)           73.5003
---------------------- --------- --------------    -----------------
High River             06/14/05       (53,057)           73.7217
---------------------- --------- --------------    -----------------
High River             06/15/05       (18,000)           74.0992
---------------------- --------- --------------    -----------------
High River             01/19/06       (61,500)          100.3728
---------------------- --------- --------------    -----------------
High River             02/01/06      (110,000)          110.0575
---------------------- --------- --------------    -----------------
Icahn Master           06/03/05      (192,000)           73.5815
---------------------- --------- --------------    -----------------
Icahn Master           06/06/05       (18,160)           73.7312
---------------------- --------- --------------    -----------------
Icahn Master           06/09/05       (85,600)           73.5159
---------------------- --------- --------------    -----------------
Icahn Master           06/10/05        (5,120)           73.4979
---------------------- --------- --------------    -----------------
Icahn Master           06/13/05       (11,266)           73.5003
---------------------- --------- --------------    -----------------
Icahn Master           06/14/05      (212,230)           73.7217
---------------------- --------- --------------    -----------------
Icahn Master           06/15/05       (72,000)           74.0992
---------------------- --------- --------------    -----------------
Icahn Master           01/19/06      (110,700)          100.3728
---------------------- --------- --------------    -----------------
Icahn Master           02/01/06      (198,000)          110.0575
---------------------- --------- --------------    -----------------
Icahn Partners         01/19/06      (135,300)          100.3728
---------------------- --------- --------------    -----------------
Icahn Partners         02/01/06      (242,000)          110.0575
---------------------- --------- --------------    -----------------




     As a  result  of the  transactions  reported  in this  Amendment  No.  7 to
Schedule  13D,  the  Reporting  Persons are no longer  subject to the  reporting
requirements of Rule 13d-1(a) of the Exchange Act.




                                    SIGNATURE

     After  reasonable  inquiry  and to the  best  of  each  of the  undersigned
knowledge and belief, each of the undersigned certifies that the information set
forth in this statement is true, complete and correct.

Dated: February 1, 2006


HIGH RIVER LIMITED PARTNERSHIP
By: Hopper Investments LLC, General Partner
  By: Barberry Corp., member


HOPPER INVESTMENTS LLC
By: Barberry Corp.


BARBERRY CORP.


ICAHN PARTNERS MASTER FUND L.P.


ICAHN OFFSHORE L.P.


CCI OFFSHORE LLC


ICAHN PARTNERS L.P.


ICAHN ONSHORE L.P.


CCI ONSHORE LLC

By: /s/ Edward E. Mattner
    ---------------------
    Name: Edward E. Mattner
    Title: Authorized Signatory


ICAHN & CO., INC.

By: /s/ Irene March
    ---------------
    Name: Irene March
    Title: Controller


/s/ Carl C. Icahn
-----------------
CARL C. ICAHN




    [Signature Page of Amendment #7 to Schedule 13D - Kerr-McGee Corporation]