Exhibit 15.1 McMoRan Exploration Co. 1615 Poydras St. New Orleans, La. 70112 November 8, 2002 To the Board of Directors and Stockholders of McMoRan Exploration Co.: We are aware of the incorporation by reference in the Registration Statements (Form Nos. 333-67485, 333-67963, 333-95195, 333-57484, 333-87380 and 333-90170) of McMoRan Exploration Co. of our report dated October 22, 2002 relating to the unaudited condensed interim financial statements of McMoRan Exploration Co. that is included in its Form 10-Q for the quarter ended September 30, 2002. Pursuant to Rule 436(c) of the Securities Act of 1933 our report is not a part of the registration statements prepared or certified by accountants within the meaning of Section 7 or 11 of the Securities Act of 1933. Very truly yours, /s/Ernst & Young LLP