EXHIBIT 99 CONSENT OF CREDIT SUISSE FIRST BOSTON CORPORATION [LETTERHEAD OF CREDIT SUISSE FIRST BOSTON CORPORATION] Board of Directors Denbury Resources Inc. 17304 Preston Road, Suite 200 Dallas, Texas 75252 Members of the Board: We hereby consent to the inclusion of our opinion letter to the Board of Directors of Denbury Resources Inc. (Denbury) as Exhibit A to the Proxy Statement/Prospectus of Denbury. In giving such consent, we do not admit that we come within the category of persons whose consent is required under, and we do not admit that we are experts for purposes of, the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. By: /s/ Credit Suisse First Boston Corporation CREDIT SUISSE FIRST BOSTON CORPORATION New York, New York December 23, 1998 -1-