UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 14A

           Proxy Statement Pursuant to Section 14(a) of the Securities
                              Exchange Act of 1934

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                              ENERGY PARTNERS, LTD.
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                (Name of Registrant As Specified In Its Charter)

                                    ATS INC.
                     an indirect wholly owned subsidiary of
                             WOODSIDE PETROLEUM LTD.
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    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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                                  EXHIBIT INDEX

Exhibit No.
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99.1             Amended Complaint for Injunctive and Declaratory Relief filed
                 in the Court of Chancery in the State of Delaware in and for
                 New Castle County, captioned ATS, Inc., a Delaware corporation,
                 v. Richard A. Bachmann, John C. Bumgarner, Jr., Jerry D.
                 Carlisle, Harold D. Carter, Enoch L. Dawkins, Norman C.
                 Francis, Robert D. Gershen, Phillip A. Gobe, William R. Herrin,
                 Jr., William O. Hiltz, John G. Phillips, Energy Partners, Ltd.,
                 a Delaware corporation, and Stone Energy Corporation, a
                 Delaware corporation, Civil Action No. 2374-N, filed September
                 11, 2006