**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, 2004 ("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
Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/ 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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/
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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/
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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/ 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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/
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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/ 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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/
William F. Wallace
 William
F. Wallace, 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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/ 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, 2004 ("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, Gregory F. Pilcher, John M. Rauh 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 8, 2005.
 
 
 
 
 /s/ Ian
L. White-Thomson
 Ian L.
White-Thomson, Director