EXHIBIT 5

                             Jenkens & Gilchrist                   AUSTIN, TEXAS
                         A PROFESSIONAL CORPORATION               (512) 499-3800
                                                               CHICAGO, ILLINOIS
                               1100 LOUISIANA                     (312) 425-3900
                                 SUITE 1800                        DALLAS, TEXAS
                            HOUSTON, TEXAS 77002                  (214) 855-4500
                                                         LOS ANGELES, CALIFORNIA
                               (713) 951-3300                     (310) 820-8800
                         FACSIMILE (713) 951-3314             NEW YORK, NEW YORK
                                                                  (212) 704-6000
                                                            PASADENA, CALIFORNIA
  Judy G. Gechman             www.jenkens.com                     (626) 578-7400
  (713) 951-3356                                              SAN ANTONIO, TEXAS
 jgechman@jenkens.com                                             (210) 246-5000
                                                                WASHINGTON, D.C.
                                                                  (202) 326-1500



                               October 1, 2002


Swift Energy Company
Suite 400
16825 Northchase Drive
Houston, Texas 77060

     Re: Opinion as to Legality of Certain Securities of Swift Energy Company

Ladies and Gentlemen:

     We have acted as counsel to Swift Energy Company,  a Texas corporation (the
"Company"),  in connection  with its  registration  under the  Securities Act of
1933, as amended (the "Securities  Act"), for resale under the Securities Act of
300,000  shares of the  Company's  Common  Stock,  par value $.01 per share (the
"Shares").  The  terms  and  conditions  of such  offering  are  described  in a
prospectus (the "Prospectus") contained in a Registration Statement on Form S-3
(the  "Registration   Statement")   filed  with  the  Securities  and  Exchange
Commission (the "Commission") today.

     We have examined the  Prospectus  and the  Registration  Statement and such
other  records,  documents,  opinions,  and  instruments  as in our judgment are
necessary or appropriate to enable us to render this opinion.  In conducting our
examination,  we have  assumed  the  genuineness  of all  signatures,  the legal
capacity of all individual signatories,  the accuracy of all documents submitted
to us as originals and the conformity to originals of all documents submitted to
us as copies. In addition, we have assumed and without independent investigation
have relied upon the factual  accuracy of the  representations,  warranties  and
other  information  contained in the items we examined.  We have made such legal
and factual determinations as we have deemed relevant.

     Based upon the foregoing,  and having regard for such legal  considerations
as we deem relevant,  we are of the opinion that the Shares are duly  authorized
and  validly  issued  and are fully  paid and  nonassessable  securities  of the
Company.

     We hereby  consent  to the  filing of this  opinion  as an  exhibit  to the
Registration Statement and to reference being made to our firm under the caption
"Legal Opinion" in the Prospectus. We also consent to the filing of this opinion
with state  securities  officials in  connection  with the  registration  of the
Shares under applicable state securities laws. In giving this consent, this firm
does not thereby  admit that it comes into the category of persons whose consent
is required under Section 7 of the  Securities Act or the rules and  regulations
of the Commission promulgated thereunder.

     We express no  opinion  as to the laws of any  jurisdiction  other than the
State of Texas and the federal laws of the United States of America.

     The  opinions  expressed  herein  are  given as of the date  hereof  and we
undertake no obligations to supplement this letter if any applicable law changes
after  such  date or if we become  aware of any  facts  that  might  change  the
opinions expressed herein after such date or for any other reason.

                                                     Sincerely yours,

                                                     JENKENS & GILCHRIST,
                                                     A Professional Corporation



                                                     By: /s/ Judy G. Gechman
                                                         -----------------------
                                                            Judy G. Gechman
                                                            Authorized Signatory