EXHIBIT 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Registration Statement of Denbury Resources Inc. on Form S-8 of our report dated March 8, 2004, appearing in the Annual Report on Form 10-K of Denbury Resources Inc. for the year ended December 31, 2003. /s/ Deloitte & Touche LLP Dallas, Texas June 7, 2004