Exhibit 24



                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (WILLIAM E. BRADFORD)
                                       --------------------------------
                                       William E. Bradford, Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned  in his  capacity  as a Director  or
Officer or both, as the case may be, of the Company, does hereby appoint Deborah
A.  Kitchens,  Gregory  F.  Pilcher  and  Robert M.  Wohleber,  and each of them
severally, his true and lawful attorneys or attorney-in-fact and agents or agent
with power to act with or without the other and with full power of  substitution
and resubstitution,  to execute for him and in his name, place and stead, in his
capacity as a Director or Officer or both,  as the case may be, of the  Company,
the Form 10-K and any and all amendments  thereto,  as said attorneys or each of
them  shall  deem  necessary  or  appropriate,  together  with  all  instruments
necessary or incidental in connection  therewith,  and to file the same or cause
the same to be filed with the Commission. Each of said attorneys shall have full
power  and  authority  to do and  perform  in the  name  and  on  behalf  of the
undersigned,  in any  and all  capacities,  each  act  whatsoever  necessary  or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (LUKE R. CORBETT)
                                       --------------------------------
                                       Luke R. Corbett
                                       Chief Executive Officer and Director


                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in her capacity as a Director of the
Company,  does hereby  appoint Luke R. Corbett,  Deborah A. Kitchens  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  her true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for her and in her name,  place and stead, in her capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (SYLVIA A. EARLE)
                                       -------------------------------------
                                       Sylvia A. Earle, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (DAVID C. GENEVER-WATLING)
                                       --------------------------------
                                       David C. Genever-Watling, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (MARTIN C. JISCHKE)
                                       --------------------------------
                                       Martin C. Jischke, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (WILLIAM C. MORRIS)
                                       --------------------------------
                                       William C. Morris, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY



         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (JOHN J. MURPHY)
                                       --------------------------------
                                       John J. Murphy, Director





                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (LEROY C. RICHIE)
                                       --------------------------------
                                       Leroy C. Richie, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  his true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (MATTHEW R. SIMMONS)
                                       --------------------------------
                                       Matthew R. Simmons, Director




                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in her capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher and Robert M. Wohleber, and each of them severally,  her true and lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for her and in her name,  place and stead, in her capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (FARAH M. WALTERS)
                                       -------------------------------------
                                       Farah M. Walters, Director





                             KERR-McGEE CORPORATION


                                POWER OF ATTORNEY




         WHEREAS,  Kerr-McGee Corporation,  a Delaware corporation  ("Company"),
intends to file with the Securities and Exchange Commission ("Commission") under
the  Securities  Exchange Act of 1934, as amended  ("ACT"),  an Annual Report on
Form 10-K for the year ended December 31, 2000 ("Form 10-K") with such amendment
or  amendments  thereto as may be  necessary or  appropriate  from time to time,
together with any and all exhibits and other relevant or associated documents.


         NOW,  THEREFORE,  the  undersigned in his capacity as a Director of the
Company,  does hereby appoint Luke R. Corbett,  Deborah A. Kitchens,  Gregory F.
Pilcher  and John M.  Rauh,  and  each of them  severally,  his true and  lawful
attorneys  or  attorney-in-fact  and  agents or agent  with power to act with or
without the other and with full power of  substitution  and  resubstitution,  to
execute for him and in his name,  place and stead, in his capacity as a Director
of the  Company,  the Form  10-K  and any and all  amendments  thereto,  as said
attorneys or each of them shall deem necessary or appropriate, together with all
instruments  necessary or incidental in  connection  therewith,  and to file the
same or cause the same to be filed with the  Commission.  Each of said attorneys
shall have full power and  authority to do and perform in the name and on behalf
of the undersigned,  in any and all capacities, each act whatsoever necessary or
desirable to be done in the  premises,  as fully and to all intents and purposes
as the undersigned might or could do in person, the undersigned hereby ratifying
and approving the acts of said attorney or attorneys.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 13, 2001.



                                      (IAN L. WHITE-THOMSON)
                                       --------------------------------
                                       Ian L. White-Thomson, Director