Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned, a Director of Halliburton Company, do hereby constitute and appoint Richard B. Cheney, David J. Lesar, Gary V. Morris and Susan S. Keith, or any of them acting alone, my true and lawful attorneys or attorney, to do any and all acts and things and execute any and all instruments which said attorneys or attorney may deem necessary or advisable to enable Halliburton Company to comply with the Securities Exchange Act of 1934, as amended, and all rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in connection with the filing of Annual Reports on Form 10-K, including specifically, but without limitation thereof, power and authority to sign my name as Director of Halliburton Company to the Annual Reports on Form 10-K required to be filed with the Securities and Exchange Commission for the year ended 1998 and for all subsequent years until revoked by me or otherwise cancelled, and to any instruments or documents filed as a part of or in connection therewith; and I hereby ratify and confirm all that said attorneys or attorney shall do or cause to be done by virtue hereof. IN TESTIMONY WHEREOF, witness my hand this 5th day of October, 1998. /s/ William E. Bradford --------------------------- William E. Bradford POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned, a Director of Halliburton Company, do hereby constitute and appoint Richard B. Cheney, David J. Lesar, Gary V. Morris and Susan S. Keith, or any of them acting alone, my true and lawful attorneys or attorney, to do any and all acts and things and execute any and all instruments which said attorneys or attorney may deem necessary or advisable to enable Halliburton Company to comply with the Securities Exchange Act of 1934, as amended, and all rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in connection with the filing of Annual Reports on Form 10-K, including specifically, but without limitation thereof, power and authority to sign my name as Director of Halliburton Company to the Annual Reports on Form 10-K required to be filed with the Securities and Exchange Commission for the year ended 1998 and for all subsequent years until revoked by me or otherwise cancelled, and to any instruments or documents filed as a part of or in connection therewith; and I hereby ratify and confirm all that said attorneys or attorney shall do or cause to be done by virtue hereof. IN TESTIMONY WHEREOF, witness my hand this 6th day of October, 1998. /s/ Lawrence S. Eagleburger ------------------------------ Lawrence S. Eagleburger POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned, a Director of Halliburton Company, do hereby constitute and appoint Richard B. Cheney, David J. Lesar, Gary V. Morris and Susan S. Keith, or any of them acting alone, my true and lawful attorneys or attorney, to do any and all acts and things and execute any and all instruments which said attorneys or attorney may deem necessary or advisable to enable Halliburton Company to comply with the Securities Exchange Act of 1934, as amended, and all rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in connection with the filing of Annual Reports on Form 10-K, including specifically, but without limitation thereof, power and authority to sign my name as Director of Halliburton Company to the Annual Reports on Form 10-K required to be filed with the Securities and Exchange Commission for the year ended 1998 and for all subsequent years until revoked by me or otherwise cancelled, and to any instruments or documents filed as a part of or in connection therewith; and I hereby ratify and confirm all that said attorneys or attorney shall do or cause to be done by virtue hereof. IN TESTIMONY WHEREOF, witness my hand this 7th day of October, 1998. /s/ Ray L. Hunt ------------------- Ray L. Hunt POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned, a Director of Halliburton Company, do hereby constitute and appoint Richard B. Cheney, David J. Lesar, Gary V. Morris and Susan S. Keith, or any of them acting alone, my true and lawful attorneys or attorney, to do any and all acts and things and execute any and all instruments which said attorneys or attorney may deem necessary or advisable to enable Halliburton Company to comply with the Securities Exchange Act of 1934, as amended, and all rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in connection with the filing of Annual Reports on Form 10-K, including specifically, but without limitation thereof, power and authority to sign my name as Director of Halliburton Company to the Annual Reports on Form 10-K required to be filed with the Securities and Exchange Commission for the year ended 1998 and for all subsequent years until revoked by me or otherwise cancelled, and to any instruments or documents filed as a part of or in connection therewith; and I hereby ratify and confirm all that said attorneys or attorney shall do or cause to be done by virtue hereof. IN TESTIMONY WHEREOF, witness my hand this 7th day of October, 1998. /s/ J. Landis Martin ------------------------ J. Landis Martin POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned, a Director of Halliburton Company, do hereby constitute and appoint Richard B. Cheney, David J. Lesar, Gary V. Morris and Susan S. Keith, or any of them acting alone, my true and lawful attorneys or attorney, to do any and all acts and things and execute any and all instruments which said attorneys or attorney may deem necessary or advisable to enable Halliburton Company to comply with the Securities Exchange Act of 1934, as amended, and all rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in connection with the filing of Annual Reports on Form 10-K, including specifically, but without limitation thereof, power and authority to sign my name as Director of Halliburton Company to the Annual Reports on Form 10-K required to be filed with the Securities and Exchange Commission for the year ended 1998 and for all subsequent years until revoked by me or otherwise cancelled, and to any instruments or documents filed as a part of or in connection therewith; and I hereby ratify and confirm all that said attorneys or attorney shall do or cause to be done by virtue hereof. IN TESTIMONY WHEREOF, witness my hand this 7th day of October, 1998. /s/ Jay A. Precourt ---------------------- Jay A. Precourt