Exhibit 23.7

          CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS

As independent petroleum engineers and geologists, we hereby consent to the
inclusion of the information included or incorporated by reference in this
Registration Statement Form S-3 with respect to the oil and gas reserves of NEG
Operating LLC, as of December 31, 2003; December 31, 2004; and December 31,
2005, which information has been included or incorporated by reference in this
Registration Statement Form S-3 in reliance upon the reports of this firm and
upon the authority of this firm as experts in petroleum engineering. We hereby
further consent to all references to our firm included in this Registration
Statement Form S-3.



                                     NETHERLAND, SEWELL & ASSOCIATES, INC.

                                     By: /s/ Frederic D. Sewell, P.E.
                                         ------------------------------------
                                         Frederic D. Sewell, P.E.
                                         Chairman and Chief Executive Officer

Dallas, Texas
April 17, 2006