Document:

<PAGE>
                                                                    EXHIBIT 10.3
                                 PROMISSORY NOTE

$500,000                                                  AS OF DECEMBER 7, 2001
                                                                  TROY, MICHIGAN

         FOR VALUE RECEIVED, the undersigned, Janet Kelley, an individual with
an address of 533 Wallace Street, Birmingham, MI 48009 ("MAKER") hereby promises
to pay to the order of KMART CORPORATION, a Michigan corporation ("PAYEE") whose
address is 3100 West Big Beaver Road, Troy, Michigan 48084-3163, or to such
other person or place as the holder hereof may from time to time designate in
writing to Maker, the principal sum of five hundred thousand Dollars ($500,000),
together with interest, compounded annually, upon the balance of the principal
sum from time to time remaining unpaid at the rate of three and 97/100 percent
(3.97%) as hereinafter provided. Principal and interest and all other amounts
owing hereunder shall be payable in lawful money of the United States of
America.

         Payment of the principal sum together with all accrued interest thereon
shall be payable in full upon the termination of the Maker's employment with the
Payee; provided, however that the obligation of the Maker to repay this Note and
any and all accrued interest thereon shall be forgiven in full upon the earliest
of either of the following events: (i) the Maker's continued employment with the
Payee through January 31, 2005, or (ii) the termination of the Maker's
employment with the Payee in circumstances that are set forth in that certain
Special Retention Agreement between Maker and Payee dated today's date and in
which the Company has agreed to the forgiveness of all the amounts otherwise
payable hereunder.

         The Maker may prepay all or any part of this Note at any time and from
time to time without notice or any prepayment penalty or premium. If suit is
brought to collect this Note, the Note holder shall be entitled to collect all
reasonable costs and expenses of suit, including, but not limited to, reasonable
attorney fees and expenses.

         The Maker hereby waives presentment, demand, notice of protest and all
other demands and notices in connection with the delivery, acceptance,
performance, default or enforcement of this Note. Maker further waives, to the
fullest extent permitted by law, the right to (a) plead any statutes of
limitations as a defense to any demand on this Note, and (b) a jury trial in
action brought by any Holder to enforce this Note.

         This Note shall be governed by and construed in accordance with the
laws of the State of Michigan. If any provision of this Note or any application
of such provision shall be declared by a court of competent jurisdiction to be
invalid or unenforceable, such invalidity or unenforceability shall not affect
any other application of such provision or any other provisions hereof which
shall, to the fullest extent possible, remain in full force and effect and shall
not effect the

<PAGE>

Maker's obligation to make the required payments pursuant to the terms this
Note. Wherever used, the words "Payee" and "Maker" shall include their
respective successors and assigns. This Note may not be changed orally, but only
by an agreement in writing signed by the parties hereto.

         IN WITNESS WHEREOF, Maker has duly executed this Note at the place and
as of the date first above written.

                                       ------------------------<PAGE>
                                                                    EXHIBIT 10.1

                               RIVIANA FOODS INC.

                                 P. O. Box 2636
                              Houston, Texas 77252

                                                       Telephone: (713) 529-3251
                                                             Fax: (713) 529-1866

                                February 1, 2001

Mr. Frank A. Godchaux III
600 Fifth Street
Abbeville, Louisiana 70510

         Re:  AMENDMENT TO CONSULTING AGREEMENT

Dear Frank:

         The purpose of this letter is to amend the Consulting Agreement between
you and the Company dated January 1, 1996.

         Effective as of February 1, 2001, the rate paid by the Company to you
as set forth in paragraph 2. of the Agreement shall be $65,000 per year.

         All other terms of the Consulting Agreement shall remain in full force
and effect.

         Please indicate your agreement by signing and returning a copy to me.

                                                Yours very truly,

                                                RIVIANA FOODS INC.

                                                By: /s/ Joseph A. Hafner, Jr.
                                                    ----------------------------
                                                    Joseph A. Hafner, Jr.
                                                    President

The foregoing agreement is
hereby accepted and agreed.

/s/ Frank A. Godchaux III
---------------------------------
Frank A. Godchaux III, Consultant<PAGE>

                                                                    EXHIBIT 10.2

                               RIVIANA FOODS INC.

                                 P. O. Box 2636
                              Houston, Texas 77252

                                                       Telephone: (713) 529-3251
                                                             Fax: (713) 529-1866

                                February 1, 2001

Mr. Charles R. Godchaux
800 Homeplace
Abbeville, Louisiana 70510

         Re:  AMENDMENT TO CONSULTING AGREEMENT

Dear Charles:

         The purpose of this letter is to amend the Consulting Agreement between
you and the Company dated July 1, 1994.

         Effective as of February 1, 2001, the rate paid by the Company to you
as set forth in paragraph 2. of the Agreement shall be $45,000 per year.

         All other terms of the Consulting Agreement shall remain in full force
and effect.

         Please indicate your agreement by signing and returning a copy to me.

                                                Yours very truly,

                                                RIVIANA FOODS INC.

                                                By: /s/ Joseph A. Hafner, Jr.
                                                    ----------------------------
                                                    Joseph A. Hafner, Jr.
                                                    President

The foregoing agreement is
hereby accepted and agreed.

/s/ Charles R. Godchaux
--------------------------------
Charles R. Godchaux, Consultant<PAGE>

                                                                    EXHIBIT 10.1

                                 AMENDMENT NO. 2

                                       TO

               OIL & GAS REVOLVING CREDIT AND TERM LOAN AGREEMENT

         THIS AMENDMENT NO. 2 (this "Amendment") is entered into as of June 6,
2002, by and among TRANSTEXAS GAS CORPORATION, a Delaware corporation
("Borrower"), the financial institutions set forth on the signature pages hereto
(each a "Lender" and collectively, "Lenders") and GMAC COMMERCIAL CREDIT LLC as
agent for Lenders (in such capacity, "Agent").

                                   BACKGROUND

         Borrower, Agent and Lenders are parties to an Oil & Gas Revolving
Credit and Term Loan Agreement dated as of March 15, 2000 (as amended, restated,
supplemented or otherwise modified from time to time, the "Loan Agreement")
pursuant to which Agent and Lenders provide Borrower with certain financial
accommodations.

         Borrower has requested that Agent and Lenders make certain amendments
to the Loan Agreement, and Agent and Lenders are willing to do so on the terms
and conditions hereafter set forth.

         NOW, THEREFORE, in consideration of any loan or advance or grant of
credit heretofore or hereafter made to or for the account of Borrower by Agent
and Lenders, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto hereby agree as
follows:

         1. Definitions. All capitalized terms not otherwise defined herein
shall have the meanings given to them in the Loan Agreement.

         2. Amendment to Loan Agreement. Subject to satisfaction of the
conditions precedent set forth in Section 4 below, the Loan Agreement is hereby
amended as follows:

                  (a) The following defined terms are added to Section 1.2 in
their appropriate alphabetical order and shall provide as follows:

                           "Amendment No. 2" shall mean Amendment No. 2 to Oil &
                           Gas Revolving Credit and Term Loan Agreement by and
                           among Borrower, Agent and Lenders.

<PAGE>

                           "Amendment No. 2 Effective Date" shall mean the date
                           when the conditions of effectiveness set forth in
                           Section 4 of Amendment No. 2 have been met to Agent's
                           satisfaction.

                           "Amendment No. 2 Fee" shall mean the fee paid by
                           Borrower to Agent on the Amendment No. 2 Effective
                           Date in the amount of $25,000 which fee shall be
                           deemed earned in full and payable on such date and
                           shall be shared by the Lenders in accordance with
                           their respective Commitment Percentages.

         (b) Section 7.2 is amended in its entirety to provide as follows:

                                    "7.2. Consolidated Net Income. Not permit
                           the sum of (i) Consolidated Net Income for Borrower
                           and its Subsidiaries on a consolidated basis plus
                           (ii) dividend requirements of Borrower and its
                           consolidated Subsidiaries (whether in cash or
                           otherwise (except dividends payable solely in shares
                           of Qualified Capital Stock)) with respect to
                           Preferred Stock paid, accrued, or scheduled to be
                           paid or accrued during each period set forth below
                           (in each case to the extent attributable to such
                           period and excluding items eliminated in
                           consolidation) at the end of each fiscal quarter with
                           respect to the immediately preceding fiscal period
                           set forth below (ending on the last day of such
                           fiscal quarter) to be less than (or if a net loss,
                           such net loss shall not be greater than) the amount
                           set forth below as corresponds to the applicable
                           fiscal period:

<Table>
<Caption>

                                            Four Quarters Ended                                  Net Income
                                            -------------------                                  ----------
<S>                                                                                              <C>
                                            4/30/02                                              ($55,000,000)
                                            7/31/02                                              ($50,000,000)
                                            10/31/02                                             ($45,000,000)
                                            1/31/03                                              ($40,000,000)
                                            4/30/03                                              ($35,000,000)
                                            7/31/03                                              ($30,000,000)
                                            10/31/03                                             ($25,000,000)
                                            1/31/04 and thereafter                               ($20,000,000)
                                            until the end of the Term"
</Table>

         (c) Section 7.3 is amended in its entirety to provide as follows:

                           "7.3. Minimum Consolidated EBITDA. Not permit
                  Consolidated EBITDA for Borrower and its Subsidiaries on a
                  consolidated basis at the end of each fiscal quarter with
                  respect to the immediately preceding fiscal period set forth
                  below (ending on the last day of such fiscal quarter) to be
                  less than the Consolidated EBITDA set forth below as
                  corresponds to the applicable fiscal period:

                                       2

<PAGE>
<Table>
<Caption>

                                            Four Quarters Ended                                  EBITDA
                                            -------------------                                  ------
<S>                                                                                              <C>

                                            4/30/02                                              $52,500,000
                                            7/31/02                                              $55,000,000
                                            10/31/02                                             $57,500,000
                                            1/31/03                                              $60,000,000
                                            4/30/03                                              $62,500,000
                                            7/31/03                                              $65,500,000
                                            10/31/03                                             $67,500,000
                                            1/31/04 and thereafter until                         $70,000,000
                                            the end of the Term"
</Table>

         (d) Section 7.4 is amended in its entirety to provide as follows:

                           "7.4. Drilling Production Payments. From and after
                  the Amendment No. 2 Effective Date, outstanding Debt with
                  respect to Drilling Production Payments shall not, in the
                  aggregate exceed the amounts set forth below during the
                  periods set forth:

<Table>
<Caption>

                                                                    Maximum Amount of
                                                                    Drilling Production
                         Period                                     Payment Liabilities
                         ------                                     -------------------
<S>                                                                 <C>

                         Amendment No. 2 Effective Date              $40,000,000
                         through 9/30/02

                         10/1/02 through 10/31/02                    $35,000,000

                         11/1/02 and thereafter through              $30,000,000
                         the end of the Term"
</Table>

         3. Agreements Regarding Reserves. From the Amendment No. 2 Effective
Date through and including October 31, 2002, Agent and Lenders waive compliance
with Sections 2.1(a) and (b) of the Loan Agreement, and Borrower shall have no
obligation to repay any Coverage Shortfall arising during such period.

         4. Conditions of Effectiveness. This Amendment shall become effective
upon satisfaction of the following conditions precedent: Agent shall have
received (a) one (1) copy of this Amendment executed by Borrower and Required
Lenders and consented and agreed to by Guarantors and (b) the Amendment No. 2
Fee, which shall be charged to Borrower's Account under and as defined in the
Receivables Facility and the payment of which shall be evidenced by Agent's
execution of this Amendment.

         5. Representations and Warranties. Borrower hereby represents and
warrants as follows:

                                        3

<PAGE>

                  (a) This Amendment and the Loan Agreement, as amended hereby,
constitute legal, valid and binding obligations of Borrower and are enforceable
against Borrower in accordance with their respective terms.

                  (b) Upon the effectiveness of this Amendment, Borrower hereby
reaffirms all covenants, representations and warranties made in the Loan
Agreement to the extent the same are not amended hereby and agrees that all such
covenants, representations and warranties shall be deemed to have been remade as
of the effective date of this Amendment.

                  (c) No Event of Default or Default has occurred and is
continuing or would exist after giving effect to this Amendment.

                  (d) Borrower has no defense, counterclaim or offset with
respect to the Loan Agreement.

         6. Effect on the Loan Agreement.

                  (a) Upon the effectiveness of Section 2 hereof, each reference
in the Loan Agreement to "this Agreement," "hereunder," "hereof," "herein" or
words of like import shall mean and be a reference to the Loan Agreement as
amended hereby.

                  (b) Except as specifically amended herein, the Loan Agreement,
and all other documents, instruments and agreements executed and/or delivered in
connection therewith, shall remain in full force and effect, and are hereby
ratified and confirmed.

                  (c) The execution, delivery and effectiveness of this
Amendment shall not operate as a waiver of any right, power or remedy of Agent
or Lenders, nor, except as provided in Section 3 hereof, constitute a waiver of
any provision of the Loan Agreement, or any other documents, instruments or
agreements executed and/or delivered under or in connection therewith.

         7. Governing Law. This Amendment shall be binding upon and inure to the
benefit of the parties hereto and their respective successors and assigns and
shall be governed by and construed in accordance with the laws of the State of
New York.

         8. Headings. Section headings in this Amendment are included herein for
convenience of reference only and shall not constitute a part of this Amendment
for any other purpose.

         9. Counterparts; Facsimile. This Amendment may be executed by the
parties hereto in one or more counterparts, each of which shall be deemed an
original and all of which when taken together shall constitute one and the same
agreement. Any signature delivered by a party by facsimile transmission shall be
deemed to be an original signature hereto.

                                       4
<PAGE>

                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       5
<PAGE>

         IN WITNESS WHEREOF, this Amendment has been duly executed as of the day
and year first written above.

                                 TRANSTEXAS GAS CORPORATION

                                 By:
                                     ------------------------------------------
                                          Ed Donahue, Vice President

                                 GMAC COMMERCIAL CREDIT LLC, as Agent and
                                 Lender

                                 By:
                                     ------------------------------------------
                                 Name:
                                 Title:

                                 Commitment Percentage:     61.90477%

                                 CREDIT SUISSE FIRST BOSTON MANAGEMENT, as a
                                 Lender

                                 By:
                                     ------------------------------------------
                                 Name:
                                 Title:

                                 Commitment Percentage:     12.69841%

                                 ANGELO GORDON & CO. L.P.

                                 By:
                                     ------------------------------------------
                                 Name:
                                 Title:

                                 Commitment Percentage:     12.69841%

                  [SIGNATURES CONTINUED ON THE FOLLOWING PAGE]

                                       6
<PAGE>

                                 OAKTREE CAPITAL MANAGEMENT,  as a
                                 general partner and investment manager of
                                 certain funds and accounts it manages, as
                                 Lender

                                 By:
                                     ------------------------------------------
                                 Name:
                                 Title:

                                 Commitment Percentage:     12.698411%

CONSENTED AND AGREED TO:

GALVESTON BAY PROCESSING CORPORATION,
 as Guarantor

By:
   -------------------------------------
         Ed Donahue, Vice President

GALVESTON BAY PIPELINE COMPANY,
 as Guarantor

By:
    -----------------------------------
         Ed Donahue, Vice President

                                       7

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