Exhibit 4.2

                          SECOND SUPPLEMENTAL INDENTURE
                            7-5/8% Senior Notes due 2011

     This Second Supplemental Indenture (this "Supplemental Indenture") executed
as of this 16th day of December,  2005 and effective at 9:00 a.m., local time in
Austin,  Texas on  December  28,  2005 is among Swift  Energy  Company,  a Texas
corporation  ("Old  Swift"),  Swift  Energy  Operating,  LLC,  a  Texas  limited
liability company  ("Operating"),  New Swift Energy Company, a Texas corporation
("New Swift"),  and Wells Fargo Bank, National  Association (the "Trustee"),  as
Trustee, and supplements, amends and modifies that certain Indenture dated as of
June 23,  2004  and  First  Supplemental  Indenture  dated  as of June 23,  2004
(collectively, the "Indenture") between Old Swift and the Trustee.

                                    RECITALS:

1.   Old  Swift  has  heretofore  executed  and  delivered  to the  Trustee  the
     Indenture providing for the issuance of Old Swift's 7-5/8% Senior Notes due
     2011 (the "Debt Securities").

2.   The Board of  Directors  of Old Swift has  determined  it to be in the best
     interests  of Old  Swift to  effect  the  formation  of a  holding  company
     structure.  Accordingly,  Old Swift,  New Swift and Operating have executed
     and delivered the Plan and Agreement and Articles of Merger to Form Holding
     Company dated  December 16, 2005 and effective at 9:00 a.m.,  local time in
     Austin,  Texas on December 28, 2005 (the "Merger  Effective Time") pursuant
     to which:

     a.   Old Swift will be merged into Operating, a Texas single member limited
          liability company and before the merger, an indirect subsidiary of Old
          Swift,  with  Operating  being the survivor of the merger  between Old
          Swift and Operating (the "Merger"),

     b.   the  outstanding  capital stock of Old Swift will be converted b. into
          capital stock of New Swift, and

     c.   at the Merger  Effective Time, the corporate name of New Swift will be
          changed to "Swift Energy Company."

3.   The Merger  will be effected  pursuant  to Articles  5.01 and 5.03.H of the
     Texas Business Corporation Act ("TBCA"), which permits effectuation of such
     a merger  without a vote of  shareholders  of Old Swift,  and  pursuant  to
     Article 10.01 of the Texas Limited Liability Company Act ("TLLC Act").

4.   As a result of effectuation of the Merger:

     a.   New Swift will become a holding company, and

     b.   Operating will become a wholly owned subsidiary of New Swift.

5.   Immediately following the Merger,  Operating will dividend to New Swift all
     of the stock of Swift Energy International, Inc., a Delaware corporation.







6.   New Swift will then form a new Delaware corporation, Swift Energy USA, Inc.
     ("USA").

7.   On  December  28,  2005 at 1:00  p.m.,  local  time in  Austin,  Texas (the
     "Capitalization  Effective  Time"),  New Swift will capitalize USA as a new
     subsidiary  by  contributing  to USA 100% of the  membership  interests  in
     Operating  in exchange for 100% of the stock of USA,  causing  Operating to
     become a direct subsidiary of USA and an indirect subsidiary of New Swift.

8.   Section 10.01 of the Indenture  provides that Old Swift may not consolidate
     with or merge with or into any Person  unless such Person is organized  and
     existing  under the laws of the United  States or any state thereof and the
     successor  company  by  virtue  of the  Merger,  in  this  case  Operating,
     expressly assumes, by supplemental  indenture executed and delivered to the
     Trustee, all the obligations of Old Swift under the Debt Securities and the
     Indenture.

     a.   New Swift and Operating intend to assume,  jointly and severally,  all
          of the covenants,  agreements  and  obligations of Old Swift under the
          Debt  Securities  and the Indenture  with respect to the  indebtedness
          previously issued by Old Swift under the Indenture.

     b.   In no  event  as a  result  of  this  Supplemental  Indenture  or  the
          assumption  by New Swift of the  obligations  of Old  Swift  under the
          Indenture,  will Operating be released from the obligations  under the
          Debt Securities and the Indenture that it is assuming herein.

9.   Pursuant to Sections 9.01(a) and 9.01(f) of the Indenture,  the Trustee and
     Old Swift are authorized to execute and deliver this Supplemental Indenture
     without notice to or consent of any Securityholder.

                                    AGREEMENT

     NOW, THEREFORE,  in consideration of the foregoing,  and for other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged  by the parties  hereto,  the parties hereto  covenant and agree as
follows:

                                    ARTICLE 1

     Section 1.1 Definitions.

             (a) For  all  purposes of this  Supplemental  Indenture,  except as
otherwise herein  expressly provided or unless the context  otherwise  requires:
(i) the  terms  and  expressions   used  herein  shall have the same meanings as
corresponding terms and expressions used in the  Indenture;  and (ii) the  words
"herein," "hereof"  and  "hereby"  and  other  words  of  similar   import  used
in  this Supplemental  Indenture refer to this Supplemental Indenture as a whole
and not to any particular section hereof.

             (b) The term  "Subsidiary"  in the   Indenture   shall   refer to a
direct  or indirect subsidiary of either New Swift or Operating.



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             (c) Whenever  the   phrase   "the    Company  and  its   Restricted
Subsidiaries"  is  used in the  Indenture,  it  shall  mean  New  Swift  and all
of its  Restricted Subsidiaries, including Operating, on a consolidated basis.

             (d) Whenever  the  term  "the  Company"  is  used in the Indenture,
except  when that term is used with respect to past events, it shall mean either
or both  of  New Swift and Operating, as appropriate, so as to enable compliance
with, and confer  the  rights  under,  the  covenants,  agreements,  terms   and
obligations of the Indenture and the Debt Securities.

     Section 1.2  Assignment  and  Assumption.  Operating  and New Swift  hereby
assume,  jointly and  severally,  all of Old Swift's  covenants,  agreements and
obligations  under the Indenture and the Debt Securities at the Merger Effective
Time and as such shall  thereafter  be  obligated  to timely  pay,  perform  and
discharge,  each and every obligation of Old Swift under and with respect to the
Indenture  and the Debt  Securities.  Operating  and New Swift agree that,  this
Supplement creates a co-obligation of each of them to comply with the covenants,
agreements  and  obligations  of Old  Swift  under the Debt  Securities  and the
Indenture  and that,  as  between  Operating  and New Swift,  the  co-obligation
created by this Supplement is full and unconditional.  Old Swift hereby assigns,
at the Merger Effective Time, its rights and obligations under the Indenture and
the Debt Securities to Operating and New Swift.

     Section 1.3  Ratification  of  Indenture;  Supplemental  Indenture  Part of
Indenture.  Except as expressly amended hereby, the Indenture is in all respects
ratified and  confirmed and all the terms,  conditions  and  provisions  thereof
shall remain in full force and effect. This Supplemental  Indenture shall form a
part of the  Indenture  for all  purposes,  and every holder of Debt  Securities
heretofore or hereafter authenticated and delivered shall be bound hereby.

                                   ARTICLE 2

     Section 2.1  Effectiveness.  Although  this  Supplemental  Indenture may be
executed and  delivered  by the parties  hereto prior  thereto,  the  provisions
hereof shall not become effective unless and until the Merger becomes  effective
under the TBCA and the TLLC Act and,  under  such  circumstances,  shall  become
effective concurrently with the Merger Effective Time. From and after the Merger
Effective  Time the  Indenture,  as hereby  supplemented,  amended and modified,
shall remain in full force and effect.

     Section  2.2   References.   Each   reference  in  the  Indenture  of  this
Supplemental  Indenture  to any  article,  section,  term  or  provision  of the
Indenture  shall mean and be deemed to refer to such article,  section,  term or
provision of the Indenture, as modified by this Supplemental  Indenture,  except
where the context otherwise indicates.

     Section  2.3  Benefit.  All the  covenants,  provisions,  stipulations  and
agreements  contained in this  Supplemental  Indenture  are and shall be for the
sole and exclusive benefit of the parties hereto,  their successors and assigns,
and of the holders and registered owners of the Debt Securities.




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     Section 2.4 Counterparts. The parties may sign any number of copies of this
Supplemental  Indenture.  Each signed copy shall be an original, but all of them
together represent the same agreement.

     Section 2.5 Governing Law. THIS  SUPPLEMENTAL  INDENTURE  SHALL BE GOVERNED
BY, AND  CONSTRUED  IN  ACCORDANCE  WITH,  THE LAWS OF THE STATE OF NEW YORK BUT
WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT
THAT THE  APPLICATION  OF THE LAWS OF  ANOTHER  JURISDICTION  WOULD BE  REQUIRED
THEREBY.

     Section  2.6  Trustee  Makes  No  Representation.   The  Trustee  makes  no
representation as to the validity or sufficiency of this Supplemental Indenture.

     Section 2.7 Effect of Headings. The Article and Section headings herein are
for convenience only and shall not affect the construction thereof.



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     IN WITNESS  WHEREOF,  the parties  hereto  have  caused  this  Supplemental
Indenture to be effective at the Merger Effective Time.



                                      SWIFT ENERGY COMPANY


                                      By: /s/ Terry E. Swift
                                         -------------------------------------
                                         Terry E. Swift, Chief Executive Officer


                                      NEW SWIFT ENERGY COMPANY


                                      By: /s/ Bruce H. Vincent
                                         ---------------------------------------
                                         Bruce H. Vincent, President


                                      SWIFT ENERGY OPERATING, LLC


                                      By: /s/ Alton D. Heckaman, Jr.
                                         ---------------------------------------
                                         Alton D. Heckaman, Jr.,
                                         Executive Vice President


                               WELLS FARGO BANK, NATIONAL ASSOCIATION as Trustee


                               By: /s/ Melissa Scott
                                  ----------------------------------------------
                                  Name:  Melissa Scott
                                  Title: Vice President











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