SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                                (Amendment No. 7)

                    Under the Securities Exchange Act of 1934

                            Comstock Resources, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    205768203
                                 (CUSIP Number)

                                Annabel M. Jones
                  Assistant General Counsel - Corporate Affairs
                             Two West Second Street
                              Tulsa, Oklahoma 74103
                                 (918) 591-1006
                           (918) 591-1718 (facsimile)

       (Name, Address and Telephone Number of Person Authorized to Receive
                           Notices and Communications)

                                  May 13, 2003
                  (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  that is the subject of this  Schedule  13D, and is filing this
schedule because of Sections 240.13d-1(e),  240,13d-1(f) or 240.13d-1(g),  check
the following box. [ ]


CUSIP No.  205768203





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1)    Name of Reporting  Persons  I.R.S.  Identification  Nos. of Above  Persons
      (entities only)

      Compression, Inc.; 73-1424038

2)    Check the Appropriate Box if a Member of a Group (See Instructions) (a)
      (b) X

3)    SEC Use Only

4)    Source of Funds (See Instructions) AF

5)    Check if Disclosure  of Legal  Proceedings  is Required  Pursuant to Items
      2(d) or 2(e)

6)    Citizenship or Place or Organization - Oklahoma

7)    Number of Shares  Beneficially  Owned by Each  Reporting  Person with Sole
      Voting Power - 1,806,950

8)    Number of Shares  Beneficially  Owned by Each Reporting Person with Shared
      Voting Power - -0-

9)    Number of Shares  Beneficially  Owned by Each  Reporting  Person with Sole
      Dispositive Power - 1,806,950

10)   Number of Shares  Beneficially  Owned by Each Reporting Person with Shared
      Dispositive Power - -0-

11)   Aggregate Amount Beneficially Owned by Each Reporting Person - 1,806,950


12)   Check if the Aggregate  Amount in Row (11) Excludes Certain Shares
      (See Instructions) [  ]

13)   Percent of Class Represented by Amount in Row (11)-  6.25%

14)   Type of Reporting Person (See Instructions) CO




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                     Amendment to Statement on Schedule 13D

      This  Amendment  No. 7 to  Statement  on Schedule  13D (this  "Amendment")
amends  the  Statement  on  Schedule  13D  of  Compression,  Inc.,  an  Oklahoma
corporation  ("Compression") and a wholly-owned  subsidiary of Samson Investment
Company  ("Samson"),  and C.  Philip  Tholen,  an  individual  ("Tholen")  dated
September 1, 1998, as amended on September 10, 1998, September 14, 1998, October
19,  1998,  February  15,  2001,  December  31,  2002,  and April 22,  2003 (the
"Statement")  with respect to shares of the common stock,  par value of $.50 per
share (the "Common  Stock") of Comstock  Resources,  Inc., a Nevada  corporation
("Issuer").  Capitalized  terms used but not  defined  herein are defined in the
Statement  and are used herein with the same  meanings  ascribed  thereto in the
Statement.

Item 5.     Interest in Securities of the Issuer

      (a)   See Line 11 on cover page of this Form 13D.

      (b)   See Lines 7 through 10 on cover page of this Form 13D.

      (c)   The  following  chart sets forth the sales of Common Stock in Issuer
            made by Compression since the filing date of the last amendment. All
            of such sales were made in brokerage  transactions  through the open
            market or over the counter.  The  percentage of ownership  disclosed
            below is based on  28,919,561  outstanding  shares,  the  number  of
            outstanding  shares in Issuer as reported in Issuer's  Annual Report
            on Form 10-K for the year ended December 31, 2002.

      Compression  has, since the last Amendment,  sold the following  shares of
Common Stock in Issuer:

                                            Total
                  Price                     Shares            %
No. of Shares   Per Share     Date          Owned           Owned
-------------   ---------    --------      ---------      ---------

   14,300        $11.47       5/6/2003     see below       see below
   10,700         11.50       5/6/2003     see below       see below
  100,000         11.61       5/6/2003     2,020,150           6.98%

      100         11.56       5/9/2003     see below       see below
      100         11.65       5/9/2003     see below       see below
    3,000         11.61       5/9/2003     2,016,950           6.97%

  100,000         11.90      5/12/2003     see below       see below
    5,000         12.02      5/12/2003     see below       see below
    5,000         12.05      5/12/2003     see below       see below
   15,000         12.01      5/12/2003     1,891,590           6.54%





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   50,000         11.96      5/13/2003     see below       see below
   25,000         11.98      5/13/2003     see below       see below
   10,000         12.00      5/13/2003     1,806,950           6.25%


     (d)  No other  person is known to have the right to receive or the power to
          direct the receipt of dividends  from,  or the proceeds  from the sale
          of, the Common Stock

     (e)  Not applicable.

Signature.

      After  reasonable  inquiry and to the best of my knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

Date:   May 14, 2003



Signature   //s//Dennis R. Neill
            --------------------
Name/Title: Dennis R. Neill
            President
            Compression, Inc.




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