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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                         (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, 1999 ("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 Tom J.
McDaniel and Gregory F. Pilcher, 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 27, 2000.



                                        (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                  (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                           (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                         (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, 1999 ("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 Luke R.
Corbett and Gregory F.  Pilcher his true and lawful  attorney-in-fact  and agent
with power to act 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.  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.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                         (TOM J. MCDANIEL)
                                         ------------------------------
                                         Tom J. McDaniel
                                         Vice Chairman of the Board 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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                              (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                      (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                            (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                       (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, 1999 ("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,  Tom J.  McDaniel  Gregory F.
Pilcher,  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 27, 2000.



                                    (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, 1999 ("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,  Tom J. McDaniel and Gregory F.
Pilcher,  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 27, 2000.



                                     (IAN L. WHITE-THOMSON)
                                     ------------------------------
                                     Ian L. White-Thomson, 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, 1999 ("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 an Officer of the
Company,  does hereby  appoint Luke R.  Corbett,  Tom J. McDaniel and Gregory F.
Pilcher,  and  each  of  them  severally,  his  true  and  lawful  attorneys  or
attorney-in-fact  and  agents or agent  with power to act and with full power of
substitution and  resubstitution,  to execute for him and in his name, place and
stead,  in his capacity as an Officer 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.


         IN WITNESS  WHEREOF,  the  undersigned  has  executed  this  instrument
effective March 27, 2000.



                                       (ROBERT M. WOHLEBER)
                                       -------------------------
                                       Robert M. Wohleber
                                       Senior Vice President and
                                       Chief Financial Officer