Exhibit 23.1 Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statements (Form S-8, No. 33-92724, No. 333-29907 and No. 333-82057) pertaining to the Louis Dreyfus Natural Gas Corp. Stock Option Plan, the Registration Statement (Form S-8, No. 333-77185) pertaining to the Non-Employee Director Deferred Compensation Program of Louis Dreyfus Natural Gas Corp. and the Registration Statement (Form S-3 No. 333-21321) and related Prospectuses of our report dated February 7, 2000, with respect to the consolidated financial statements and schedule of Louis Dreyfus Natural Gas Corp. included in the Annual Report on Form 10-K for the year ended December 31, 1999. ERNST & YOUNG LLP Oklahoma City, Oklahoma March 6, 2000