1
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 1, 1997
 
                                                   REGISTRATION NUMBER 333-
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            ------------------------

                                    FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                            ------------------------
                               COHO ENERGY, INC.
             (Exact name of registrant as specified in its charter)
 
                   SEE TABLE OF ADDITIONAL REGISTRANTS BELOW
 

                                              
                     TEXAS                                          75-2488635
        (State or other jurisdiction of                          (I.R.S. Employer
         incorporation or organization)                        Identification No.)

 
                         14785 PRESTON ROAD, SUITE 860
                              DALLAS, TEXAS 75240
                                 (972) 774-8300
  (Address, including zip code, and telephone number, including area code, of
                   registrants' principal executive offices)
                            ------------------------
                                 JEFFREY CLARKE
                         14785 PRESTON ROAD, SUITE 860
                              DALLAS, TEXAS 75240
                                 (972) 774-8300
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                            ------------------------
                                   Copies to:
 

                                              
          FULBRIGHT & JAWORSKI L.L.P.                        CRAVATH, SWAINE & MOORE
           1301 MCKINNEY, SUITE 5100                            825 EIGHTH AVENUE
           HOUSTON, TEXAS 77010-3095                         NEW YORK, NEW YORK 10019
                 (713) 651-5151                                   (212) 474-1000
            ATTN: JERRY L. WICKLIFFE                         ATTN: KRIS F. HEINZELMAN

 
     Approximate date of commencement of proposed sale to the public: As soon as
practicable after the Registration Statement becomes effective.
 
     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.  [ ]
 
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box.  [ ]
 
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [X] 333-33979 

     If this Form is a post-effective amendment filed pursuant to 
Rule 462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective
registration statement for the same offering.  [ ]
 
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]


                       CALCULATION OF REGISTRATION FEE




==========================================================================================================================
                                                                PROPOSED             PROPOSED 
                                          AMOUNT                MAXIMUM              MAXIMUM
        TITLE OF EACH CLASS OF            TO BE              AGGREGATE PRICE         AGGREGATE             AMOUNT OF
     SECURITIES TO BE REGISTERED        REGISTERED              PER UNIT          OFFERING PRICE        REGISTRATION FEE
- -------------------------------------------------------------------------------------------------------------------------
                                                                                               
8 7/8% Senior Subordinated Notes 
  Due 2007 .........................   $25,000,000              100%                $25,000,000            $7,575.76
- -------------------------------------------------------------------------------------------------------------------------
Subsidiary Guarantees of 8 7/8% 
  Senior Subordinated Notes 
  Due 2007 .........................            --               --                          --                   (1)
==========================================================================================================================


(1) Pursuant to Rule 457(n) under the Securities Act of 1933, no separate fee is
payable for the Subsidiary Guarantees.
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(a), MAY DETERMINE.                              


   2
 
                        TABLE OF ADDITIONAL REGISTRANTS
 


              EXACT NAME OF REGISTRANT                  STATE OR OTHER JURISDICTION        I.R.S. EMPLOYER
            AS SPECIFIED IN ITS CHARTER               OF INCORPORATION OR ORGANIZATION    IDENTIFICATION NO.
            ---------------------------               --------------------------------    ------------------
                                                                                    
Coho Resources, Inc.................................                Nevada                    84-0824557
Coho Louisiana Production Company...................              Delaware                    76-0369936
Coho Louisiana Gathering Company....................              Delaware                    84-1033960
Coho Fairbanks Gathering Company....................              Delaware                    76-1228000
Coho Exploration, Inc...............................              Delaware                    75-2660779
Interstate Natural Gas Company......................              Delaware                    76-0369928

 
================================================================================
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                                EXPLANATORY NOTE

        This Registration Statement is being filed pursuant to Rule 462(b)
under the Securities Act of 1933, as amended. The contents of the Registration
Statement on Form S-3 (Registration No. 333-33979) filed by Coho Energy, Inc.
with the Securities and Exchange Commission (the "Commission") on August 20,
1997, as amended by Amendment No. 1 thereto filed on August 29, 1997, Amendment
No. 2 thereto filed on September 9, 1997 and Amendment No. 3 thereto filed on
September 29, 1997, which was declared effective by the Commission on September 
29, 1997, including the exhibits thereto, are incorporated herein by reference.
   4
                                   PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

(a)     Exhibits:
        
        All the exhibits filed with or incorporated by reference in
Registration Statement No. 333-33979 are incorporated by reference into, and
shall be deemed part of this registration statement, except the following which
are filed herewith:




EXHIBIT   
  NO.                DESCRIPTION
- -------              -----------
       
 5        --Opinion of Fulbright & Jaworski L.L.P.
15        --Letter regarding unaudited interim financial information.
23.1      --Consent of Arthur Andersen LLP
23.2      --Consent of KPMG Peat Marwick LLP
23.3      --Consent of Ryder Scott Company Petroleum Engineers
23.4      --Consent of Fulbright & Jaworski L.L.P. (included in Exhibit 5) 



                                     II-1

   5
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                            COHO ENERGY, INC.
 
                                            By:  /s/ EDDIE M. LEBLANC, III
                                              ----------------------------------
                                                    Eddie M. LeBlanc, III
                                                  Senior Vice President and
                                                   Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director                   
                   Jeffrey Clarke                          (Principal Executive                   
                                                           Officer)                               
                                                                                                  
              /s/ EDDIE M. LEBLANC, III                  Sr. Vice President and       October 1, 1997
- -----------------------------------------------------      Chief Financial Officer                
                Eddie M. LeBlanc, III                      (Principal Financial                   
                                                           Officer)                               
                                                                                                  
                          *                              Controller (Principal        October 1, 1997
- -----------------------------------------------------      Accounting Officer)                    
                   Susan J. McAden                                                                
                                                                                                  
                          *                              Director                     October 1, 1997
- -----------------------------------------------------                                             
                 Robert B. Anderson                                                               
                                                                                                  
                          *                              Director                     October 1, 1997
- -----------------------------------------------------                                             
                    Roy R. Baker                                                                  
                                                                                                  
                          *                              Director                     October 1, 1997
- -----------------------------------------------------                                             
                Frederick K. Campbell                                                             
                                                                                                  
                          *                              Director                     October 1, 1997
- -----------------------------------------------------                                             
                   Louis F. Crane                                                                 
                                                                                                  
                          *                              Director                     October 1, 1997
- -----------------------------------------------------
                  Howard I. Hoffen

 
                                      II-4
   6


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              Director                     October 1, 1997
- -----------------------------------------------------
                 Kenneth H. Lambert
 
                          *                              Director                     October 1, 1997
- -----------------------------------------------------
                  Douglas R. Martin
 
                          *                              Director                     October 1, 1997
- -----------------------------------------------------
                    Carl S. Quinn
 
                                                         Director
- -----------------------------------------------------
                     Jake Taylor
 
           *By: /s/ EDDIE M. LEBLANC, III
  ------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-5
   7
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                            COHO RESOURCES, INC.
 
                                            By:  /s/ EDDIE M. LEBLANC, III
                                              ----------------------------------
                                                    Eddie M. LeBlanc, III
                                                   Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
                          *                              Director                     October 1, 1997
- -----------------------------------------------------
                     R.M. Pearce
 
           *By: /s/ EDDIE M. LEBLANC, III
  ------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-6
   8
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                        COHO LOUISIANA PRODUCTION COMPANY
 
                                        By:    /s/ EDDIE M. LEBLANC, III
                                           -------------------------------------
                                                   Eddie M. LeBlanc, III
                                                  Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
           *By: /s/ EDDIE M. LEBLANC, III
- -----------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-7
   9
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                        COHO LOUISIANA GATHERING COMPANY
 
                                        By:    /s/ EDDIE M. LEBLANC, III
                                           -------------------------------------
                                                   Eddie M. LeBlanc, III
                                                  Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
            By: /s/ EDDIE M. LEBLANC, III
  -------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-8
   10
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                        COHO FAIRBANKS GATHERING COMPANY
 
                                        By:    /s/ EDDIE M. LEBLANC, III
                                           -------------------------------------
                                                   Eddie M. LeBlanc, III
                                                  Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
           *By: /s/ EDDIE M. LEBLANC, III
- -----------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-9
   11
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                            COHO EXPLORATION, INC.
 
                                            By:  /s/ EDDIE M. LEBLANC, III
                                              ----------------------------------
                                                    Eddie M. LeBlanc, III
                                                   Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
           *By: /s/ EDDIE M. LEBLANC, III
  ------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-10
   12
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Dallas, State of Texas on October 1, 1997.
 
                                            INTERSTATE NATURAL GAS COMPANY
 
                                            By:  /s/ EDDIE M. LEBLANC, III
                                              ----------------------------------
                                                    Eddie M. LeBlanc, III
                                                   Chief Financial Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 


                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
                                                                                
 
                          *                              President, Chief Executive   October 1, 1997
- -----------------------------------------------------      Officer and Director
                   Jeffrey Clarke                          (Principal Executive
                                                           Officer)
 
              /s/ EDDIE M. LEBLANC, III                  Chief Financial Officer      October 1, 1997
- -----------------------------------------------------      (Principal Financial
                Eddie M. LeBlanc, III                      Officer and Principal
                                                           Accounting Officer)
 
           *By: /s/ EDDIE M. LEBLANC, III
  ------------------------------------------------
                Eddie M. LeBlanc, III
                  Attorney-in-Fact

 
                                      II-11
   13
                              INDEX TO EXHIBITS


        All exhibits filed with or incorporated by reference in Registration
Statement No. 333-33979 are incorporated by reference into, and shall be deemed
part of this registration statement, except the following which are filed 
herewith:



EXHIBIT
  NO.                       DESCRIPTION                                PAGE
- -------                     -----------                                ----
       
 5        --Opinion of Fulbright & Jaworski L.L.P.
15        --Letter regarding unaudited interim financial information.
23.1      --Consent of Arthur Andersen LLP
23.2      --Consent of KPMG Peat Marwick LLP
23.3      --Consent of Ryder Scott Company Petroleum Engineers
23.4      --Consent of Fulbright & Jaworski L.L.P. 
            (included in Exhibit 5)