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                                                                    Exhibit 23.3

[NSA LOGO]

            CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS
            ---------------------------------------------------------

As independent petroleum engineers and geologists, we consent to the references
to our firm, to our estimates of reserves and value of reserves and to our
reports on reserves and the incorporation of our first amendment to the reports
on reserves for the years ended 2001, 2002, and 2003 included in the W & T
Offshore, Inc. Registration Statement on Form S-1 to be filed with the
Securities and Exchange Commission on or about June 24, 2004 and any other
amendments to the W & T Offshore, Inc. Registration Statement on Form S-1 filed
with the Securities and Exchange Commission on May 3, 2004, and related
prospectus of W & T Offshore, Inc. for the registration of securities.

                                           NETHERLAND, SEWELL & ASSOCIATES, INC.

                                           By: /s/ G. Lance Binder
                                              ----------------------------------
                                              G. Lance Binder
                                              Executive Vice President

Dallas, Texas
June 24, 2004

