EX-23 5 dex23.txt CONSENT OF DELOITTE & TOUCHE LLP EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this registration statement of Union Pacific Corporation on Form S-3 of our report dated January 24, 2002, appearing in the Annual Report on Form 10-K of Union Pacific Corporation for the year ended December 31, 2001 and to the reference to us under the heading "Experts" in the prospectus, which is part of this registration statement. /S/ DELOITTE & TOUCHE LLP DELOITTE & TOUCHE LLP Omaha, Nebraska May 20, 2002