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      mmr_tandyletter

    Telephone:
      504-582-4000

    1615
      Poydras Street

    New
      Orleans, LA 70112

    P.O.
      Box
      60004

    New
      Orleans, LA 70160

    October
      27, 2005

    VIA
      FACSIMILE AND EDGAR

    Securities
      and Exchange Commission

    100
      F
      Street, NE

    Washington,
      D.C. 20549

    RE:
       McMoRan
      Exploration Co.

    Registration
      Statement on Form S-3

    Registration
      No. 333-121779

    Ladies
      and Gentlemen:

    McMoRan
      Exploration Co. (“McMoRan”) represents to the Securities and Exchange Commission
      (the “Commission”) and its Staff that McMoRan is responsible for the adequacy
      and accuracy of the disclosure in
      the
      above captioned Registration Statement No. 333-121779.
      McMoRan
      further represents
      to the Commission that should the Commission or its Staff acting pursuant to
      delegated authority, declare the filing effective, it does not foreclose the
      Commission from taking any action with respect to the filing. In
      addition, McMoRan will not assert this action as a defense in any proceeding
      initiated by the Commission or any person under the federal securities laws
      of
      the United States.

      Very
        truly yours,

      McMoRan
        EXPLORATION CO.

      By:
        /s/ Nancy D. Parmelee

        Nancy D. Parmelee

        Senior Vice President,

        Chief Financial Officer and Secretary