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                                                                    EXHIBIT 4.35

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                        TRANSAMERICAN ENERGY CORPORATION

                                       AND

                       TRANSAMERICAN REFINING CORPORATION


                            ------------------------

                        THIRD AMENDMENT TO LOAN AGREEMENT

                          Dated as of December 15, 1998

                           --------------------------



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                        THIRD AMENDMENT TO LOAN AGREEMENT

         This Third Amendment to Loan Agreement (this "Third Amendment") is made
as of December 15, 1998, by and between TransAmerican Energy Corporation, a
Delaware corporation ("TEC"), and TransAmerican Refining Corporation, a Texas
corporation ("TARC").

                              W I T N E S S E T H:

         WHEREAS, TEC and Firstar Bank of Minnesota, N.A., as Trustee, have
entered into an Indenture dated as of June 13, 1997, as amended (the
"Indenture"), pursuant to which TEC issued $475,000,000 aggregate principal
amount of its 11 1/2% Senior Secured Notes due 2002 and $1,130,000,000 aggregate
principal amount of its 13% Senior Secured Discount Notes due 2002
(collectively, the "Notes"); and

         WHEREAS, TEC and TARC have entered into a Loan Agreement dated as of
June 13, 1997, as amended by a First Amendment to Loan Agreement dated as of
December 30, 1997 and a Second Amendment to Loan Agreement dated as of November
13, 1998 (as so amended, the "TARC Intercompany Loan Agreement"), pursuant to
which TEC agreed to loan to TARC an aggregate of $675,648,920 out of the
proceeds of the issuance of the Notes; and

         WHEREAS, TEC and TARC have agreed to certain amendments to the TARC
Intercompany Loan Agreement as hereinafter set forth (the "Proposed
Amendments"); and

         WHEREAS, pursuant to Section 9.2 of the Indenture, the holders of not
less than 66-2/3% in aggregate Value (as defined in the Indenture) of the Notes
have consented to the Proposed Amendments to the TARC Intercompany Loan
Agreement;

         NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties to this Third
Amendment hereby agree as follows:


                                    ARTICLE I
               AMENDMENTS TO THE TARC INTERCOMPANY LOAN AGREEMENT

         Section 1.01. Amendment to First Paragraph. The first paragraph of the
TARC Intercompany Loan Agreement is hereby amended to read in its entirety as
follows:

                           This Loan Agreement dated as of June 13, 1997 (this
                  "Agreement") is entered into by and between TransAmerican
                  Refining Corporation, a Texas corporation, and TransAmerican
                  Energy Corporation, a Delaware corporation (the "Lender").

         Section 1.02. Amended Definitions. The following definitions in Section
1.1 of the TARC Intercompany Loan Agreement are hereby amended as follows:

         (a) A definition of "Borrower" is hereby added to the TARC Intercompany
         Loan Agreement to read in its entirety as follows:

         "Borrower" shall mean TransAmerican Refining Corporation, a Texas
         corporation.

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         (b) The definition of "Construction Supervisor" is hereby amended to
         read as follows:

                           "Construction Supervisor" means Baker & O'Brien,
                  Inc., as construction supervisor of the Capital Improvement
                  Program or any successor construction supervisor appointed by
                  TEC with the approval of TransContinental, which approval
                  shall not be unreasonably withheld.

         (c) The definition of "Indenture" is hereby amended to read as follows:

                           "Indenture" shall mean that certain Indenture dated
                  as of the date hereof between the Lender and the Indenture
                  Trustee, as supplemented or amended through the Transaction
                  Closing Date.

         (d) The definition of "Independent Director" is hereby deleted in its
         entirety.

         (e) The definition of "Intercreditor Agreement" is hereby deleted in
         its entirety.

         (f) The definition of "Permitted Hedging Transactions" is hereby
         amended to read as follows:

                           "Permitted Hedging Transactions" shall mean
                  non-speculative transactions in futures, forwards, swaps or
                  option contracts (including both physical and financial
                  settlement transactions) engaged in by the TARC Entities or
                  TransContinental as part of their normal business operations
                  as a risk-management strategy or hedge against adverse changes
                  in market conditions in the natural gas industry as prices of
                  feedstock and refined products; provided, that at the time of
                  such transaction (i) the counter party to any such transaction
                  is an Eligible Institution or a Person that has an Investment
                  Grade Rating or has an issue of debt securities or preferred
                  stock outstanding with an Investment Grade Rating or (ii) such
                  counter party's obligation pursuant to such transaction is
                  unconditionally guaranteed in full by, or secured by a letter
                  of credit issued by, an Eligible Institution or a Person that
                  has an Investment Grade Rating or that has an issue of debt
                  securities or preferred stock outstanding with an Investment
                  Grade Rating.

         (g) The definition of "Permitted Investment" is hereby amended to read
         as follows:

                           "Permitted Investment" shall mean, when used with
                  reference to the Borrower or its Subsidiaries, (i) trade
                  credit extended to persons in the ordinary course of business;
                  (ii) purchases of Cash Equivalents; (iii) Investments by the
                  Borrower or its Subsidiaries in Subsidiaries of TARC or the
                  Borrower that are engaged, or are formed to engage, in Related
                  TARC Businesses or in TransContinental; (iv) Swap Obligations;
                  (v) the receipt of capital stock in lieu of cash in connection
                  with the settlement of litigation; (vi) advances to officers
                  and employees in connection with the performance of their
                  duties in the ordinary course of business in an amount not to
                  exceed $3 million in the aggregate outstanding at any time;
                  (vii) margin deposits in connection with Permitted Hedging
                  Transactions; (viii) an Investment in one or more Unrestricted
                  Subsidiaries of the Borrower of the assets
                  constituting the CATOFIN(R) Unit owned by the Borrower as of
                  the date hereof; (ix) a guaranty by any Subsidiary of the
                  Borrower permitted under the Indenture; (x) deposits permitted
                  by the definition of Permitted Liens or any extension, renewal
                  or replacement of 






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                  any of them; (xi) any acquisition by the Borrower of tank
                  storage facilities (or the company that owns such facilities)
                  in the vicinity of the Refinery; (xii) Investments in Accounts
                  Receivables Subsidiary Notes by the Borrower, or any of their
                  respective Subsidiaries in amounts not to exceed the greater
                  of $20 million or 20% of the TransContinental Borrowing Base
                  at any one time; (xiii) Investments by the Borrower in an
                  Accounts Receivable Subsidiary or in a reincorporation
                  subsidiary, in each case in connection with the initial
                  capitalization thereof, and not to exceed $1,000; (xiv)
                  Investments by the Borrower or a wholly owned Subsidiary
                  solely for the purpose of facilitating a repurchase of the
                  TARC Warrants; (xv) other Investments not in excess of $5
                  million at any time outstanding; (xvi) loans made (x) to
                  officers, directors and employees of the Borrower or any of
                  its Subsidiaries approved by the applicable Board of Directors
                  (or by an authorized officer), the proceeds of which are used
                  solely to purchase stock or to exercise stock options received
                  pursuant to an employee stock option plan or other incentive
                  plan, in a principal amount not to exceed the purchase price
                  of such stock or the exercise price of such stock options, as
                  applicable, and (y) to refinance loans, together with accrued
                  interest thereon made pursuant to this clause, in each case
                  not in excess of $3 million in the aggregate outstanding at
                  any one time; and (xvii) the purchase or other acquisition by
                  the Borrower or its Subsidiaries of TEC Notes.

         (h) The definition of "Permitted Liens" is hereby amended to read as
         follows:

                           "Permitted Liens" shall mean means (a) Liens imposed
                  by governmental authorities for taxes, assessments, or other
                  charges not yet due or which are being contested in good faith
                  and by appropriate proceedings, if adequate reserves with
                  respect thereto are maintained on the books of any of the TARC
                  Entities in accordance with GAAP; (b) statutory Liens of
                  landlords, carriers, warehousemen, mechanics, materialmen,
                  repairmen, mineral interest owners, or other like Liens
                  arising by operation of law in the ordinary course of
                  business; provided, that (i) the underlying obligations are
                  not overdue for a period of more than 60 days, or (ii) such
                  Liens are being contested in good faith and by appropriate
                  proceedings and adequate reserves with respect thereto are
                  maintained on the books of any of the TARC Entities in
                  accordance with GAAP; (c) deposits of cash or Cash Equivalents
                  to secure (i) the performance of bids, trade contracts (other
                  than borrowed money), leases, statutory obligations, surety
                  bonds, performance bonds, and other obligations of a like
                  nature incurred in the ordinary course of business (or to
                  secure reimbursement obligations or letters of credit issued
                  to secure such performance or other obligations) in an
                  aggregate amount outstanding at any one time not in excess of
                  $5,000,000 or (ii) appeal or supersedeas bonds (or to secure
                  reimbursement obligations or letters of credit in support of
                  such bonds); (d) easements, servitudes, rights of way, zoning,
                  similar restrictions and other similar encumbrances or title
                  defects incurred in the ordinary course of business which, in
                  the aggregate, are not material in amount and which do not, in
                  any case, materially detract from the value of the property
                  subject thereto (as such property is used by any of the TARC
                  Entities) or materially interfere with the ordinary conduct of
                  the business of any of the TARC Entities, including, without
                  limitation, any easement or servitude granted in connection
                  with the Port Commission Bond Financing; (e) Liens arising by
                  operation of law in connection with judgments, only to the
                  extent, for an amount and for a period not resulting in an
                  Event of Default with respect thereto; (f) Liens securing Debt
                  or other obligations not in excess of $3,000,000; (g) pledges
                  or deposits made in the





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                  ordinary course of business in connection with worker's
                  compensation, unemployment insurance, other types of social
                  security legislation, property insurance and liability
                  insurance; (h) Liens on Equipment, Receivables and Inventory;
                  (i) Liens on the assets of any entity existing at the time
                  such assets are acquired by any of the TARC Entities, whether
                  by merger, consolidation, purchase of assets or otherwise so
                  long as such Liens (i) are not created, incurred or assumed in
                  contemplation of such assets being acquired by any of the TARC
                  Entities and (ii) do not extend to any other assets of any of
                  the TARC Entities; (j) Liens (including extensions and
                  renewals thereof) on real or personal property, acquired after
                  the Issue Date ("New TARC Property"); provided, however, that
                  (i) such Lien is created solely for the purpose of securing
                  Debt Incurred to finance the cost (including the cost of
                  improvement or construction) of the item of New TARC Property
                  subject thereto and such Lien is created at the time of or
                  within six months after the later of the acquisition, the
                  completion of construction, or the commencement of full
                  operation of such New TARC Property, (ii) the principal amount
                  of the Debt secured by such Lien does not exceed 100% of such
                  cost plus reasonable financing fees and other associated
                  reasonable out-of-pocket expenses (iii) any such Lien shall
                  not extend to or cover any property or assets other than such
                  item of New TARC Property and any improvements on such New
                  TARC Property and (iv) such Lien does not extend to assets or
                  property which are part of the fixed refinery assets which are
                  part of the Capital Improvement Program; (k) leases or
                  subleases granted to others that do not materially interfere
                  with the ordinary course of business of any of the TARC
                  Entities, taken as a whole; (l) Liens on the assets of one of
                  the TARC Entities in favor of another TARC Entity; (m) Liens
                  securing reimbursement obligations with respect to letters of
                  credit that encumber documents relating to such letters of
                  credit and the products and proceeds thereof; provided, that,
                  such reimbursement obligations are not matured for a period of
                  over 60 days; (n) Liens in favor of customs and revenue
                  authorities arising as a matter of law to secure payment of
                  customs duties in connection with the importation of goods;
                  (o) Liens encumbering customary initial deposits and margin
                  deposits securing Swap Obligations or Permitted Hedging
                  Transactions and Liens encumbering contract rights under
                  Permitted Hedging Transactions; (p) Liens on cash deposits to
                  secure reimbursement obligations with respect to letters of
                  credit after the Delayed Coking Unit is completed; (q) Liens
                  that secure Unrestricted Non-Recourse Debt; provided, however,
                  that at the time or incurrence the aggregate fair market value
                  of the assets securing such Lien (exclusive of the stock of
                  the applicable Unrestricted Subsidiary) shall not exceed the
                  amount of Unrestricted Non-Recourse Debt of the Borrower; (r)
                  Liens on the proceeds of any property subject to a Permitted
                  Lien or on deposit accounts containing any such proceeds; (s)
                  Liens on the proceeds of any property that is not Collateral
                  on the proceeds of any Debt Incurred in accordance with the
                  provisions hereof, or on deposit accounts containing any such
                  proceeds; (t) Liens imposed on the Port Facility Assets; (u)
                  any extension, renewal or replacement of the Liens created
                  pursuant to any of the clauses (a) through (g) or (i) through
                  (t) or (v); (v) Liens on any property owned by
                  TransContinental; (w) a Lien in favor of the Purchasers and
                  others securing Debt of TARC or TCR Holding in an aggregate
                  principal amount not in excess of $150,000,000; and (x) Liens
                  securing the TARC Intercompany Bridge Loan.

         (i) The definition of "Phase I Completion Date" is hereby amended to
         read as follows:





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                           "Phase I Completion Date" shall mean the date on
                  which the Construction Supervisor issues a written notice (the
                  "Phase I Completion Notice") to the Borrower certifying that
                  the Phase I Performance Test has been completed.

         (j) A definition of "Phase I Performance Test" is hereby added to the
         TARC Intercompany Loan to read in its entirety as follows:

                           "Phase I Performance Test" means for a period of at
                  least 72 uninterrupted hours, TransContinental's refinery has
                  sustained (i) an average feedstock throughput level of at
                  least 150,000 barrels per day and (ii) no net production of
                  vacuum tower bottoms when using as input a combined feedstock
                  slate with an average API Gravity of 22 degrees or less.

         (k) The definition of "Phase II Completion Date" is hereby amended to
         read as follows:

                           "Phase II Completion Date" means the date on which
                  the Construction Supervisor issues a written notice (the
                  "Phase II Completion Notice") to the Borrower certifying that
                  for a period of at least 72 uninterrupted hours,
                  TransContinental's refinery has sustained (i) an average
                  feedstock throughput level of at least 180,000 barrels per day
                  and (ii) average production yields (measured as the liquid
                  volume percent of feedstock throughput) of refined products
                  with a specific gravity of gasoline or lighter of at least 40%
                  and of middle distillates or lighter of at least 60%, when
                  using a combined Crude Unit feedstock slate with an average
                  API Gravity of 22 degrees or less.

         (l) The definition of "Plans" is hereby amended to read as follows:

                           "Plans" shall mean (a) the plans and specifications
                  prepared by or on behalf of the Borrower or TransContinental
                  which describe and show the proposed expansion and
                  modification of the Refinery, as amended from time to time
                  with the consent of the Construction Supervisor, and (b) a
                  budget prepared by or on behalf of the Borrower or
                  TransContinental, as amended from time to time with the
                  consent of the Construction Supervisor.

         (m) The definition of "Port Commission Bond Financing" is hereby
         amended to read as follows:

                           "Port Commission Bond Financing" shall mean a
                  financing transaction involving the transfer (including,
                  without limitation, transfer by sale, lease, lien or mortgage)
                  of TransContinental's interest in all or some of the following
                  assets (together with the granting, at TransContinental's
                  discretion, of any easements or servitudes reasonably
                  necessary to the ownership or operation of such assets by the
                  transferee) that are under construction in or near the
                  Refinery: (i) the Prospect Road tank farm and other tanks;
                  (ii) certain dock improvements; (iii) the dock vapor recovery
                  system; (iv) the coke handling system; (v) the Refinery waste
                  water treatment facility: and (vi) tankage for liquefied
                  petroleum gas (the "Port Facility Assets").

         (n) A definition of "Purchasers" is hereby added to the Intercompany
         Loan Agreement to read as follows:



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                           "Purchasers" shall mean the initial purchasers from
                  TARC, pursuant to the Transaction, of the Capital Stock of TCR
                  Holding which has the right to vote in the election of
                  directors and their transferees and affiliates (in each case
                  other than TEC and its Subsidiaries).

         (o) A definition of "Refinery Assets" is hereby added to the
         Intercompany Loan Agreement to read as follows:

                           "Refinery Assets" shall mean substantially all of the
                  assets of TARC immediately prior to the Transaction Closing
                  Date.

         (p) The definition of "Related Person" is hereby amended to read as
         follows:

                           "Related Person" shall mean (i) any Person (other
                  than a Purchaser) directly or indirectly controlling or
                  controlled by or under direct or indirect common control with
                  the Borrower or any Subsidiary of the Borrower or any officer,
                  director, or employee of the Borrower or any Subsidiary of the
                  Borrower or of such Person, (ii) the spouse, any immediate
                  family member, or any other relative who has the same
                  principal residence of any Person described in clause (i)
                  above, and any Person, directly or indirectly, controlling or
                  controlled by or under direct or indirect common control with,
                  such spouse, family member, or other relative, and (iii) any
                  trust in which any Person described in clause (i) or (ii),
                  above, is a fiduciary or has a beneficial interest. For
                  purposes of this definition the term "control" means (a) the
                  power to direct the management and policies of a Person,
                  directly or through one or more intermediaries, whether
                  through the ownership of voting securities, by contract, or
                  otherwise, or (b) the beneficial ownership of 10% or more of
                  the voting common equity of such Person (on a fully diluted
                  basis) or of warrants or other rights to acquire such equity
                  (whether or not presently exercisable).

         (q) The definition of "Restricted Payment" is hereby amended to read as
         follows:

                           "Restricted Payment" shall mean, with respect to any
                  Person, (i) any Restricted Investment, (ii) any dividend or
                  other distribution on shares of Capital Stock of such Person
                  or any Subsidiary of such Person, (iii) any payment on account
                  of the purchase, redemption, or other acquisition or
                  retirement for value of any shares of Capital Stock of such
                  Person, and (iv) any defeasance, redemption, repurchase, or
                  other acquisition or retirement for value, or any payment in
                  respect of any amendment in anticipation of or in connection
                  with any such retirement, acquisition, or defeasance, in whole
                  or in part, of any Subordinated Debt, directly or indirectly,
                  or such Person or a Subsidiary of such Person prior to the
                  scheduled maturity or prior to any scheduled repayment of
                  principal in respect of such Subordinated Debt; provided,
                  however, that the term "Restricted Payment" does not include
                  (i) any dividend, distribution, or other payment on shares of
                  Capital Stock of an issuer solely in shares of Qualified
                  Capital Stock of such issuer that is at least as junior in
                  ranking as the Capital Stock on which such dividend,
                  distribution, or other payment is to be made, (ii) any
                  dividend, distribution, or other payment to the Borrower from
                  any of its Subsidiaries, (iii) any defeasance, redemption,
                  repurchase, or other acquisition or retirement for value, in
                  whole or in part, of any Subordinated Debt of such Person
                  payable solely in shares of Qualified Capital Stock of such
                  Person, (iv) any payments or


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                  distributions made pursuant to and in accordance with the
                  Transfer Agreement, the Services Agreement, the Office Leases
                  or the Tax Allocation Agreement, or (v) any dividend,
                  distribution or other payment to TARC by the Borrower or to
                  the Borrower by any of its Subsidiaries, (vi) any Permitted
                  Prepayment, (vii) any redemption, repurchase or other
                  retirement for value of the TARC Warrants by the Lender or the
                  Borrower, including any premium paid thereon, (viii) any
                  redemption, defeasance, repurchase or other retirement for
                  value of the Senior TARC Mortgage Notes by the Borrower,
                  including any premium paid thereon, (ix) any redemption,
                  defeasance, repurchase or other retirement for value of the
                  Senior TARC Discount Notes by the Lender or the Borrower,
                  including any premium paid thereon, (x) the redemption,
                  purchase, retirement or other acquisition of any Debt,
                  including any premium paid thereon, with the proceeds of any
                  refinancing Debt permitted to be incurred pursuant to Section
                  4.11(2)(q), (2)(u), (2)(w) or Section 4.11(4)(j), (4)(w) or
                  (4)(z) of the Indenture, (xi) the purchasing by the Borrower
                  of shares of the Capital Stock of TransTexas or itself or
                  TransContinental in connection with its employee benefit plan,
                  including without limitation any employee stock ownership plan
                  or any employee stock option plan in an aggregate amount, with
                  respect to the issuer, not to exceed 7% of the aggregate
                  number of shares of the voting stock held by non-affiliates of
                  the issuer measured from the date of the first such
                  purchase,(xii) any repayment or retirement for value by the
                  Borrower of any loan from the Lender incurred pursuant to
                  Sections 4.11(2)(o), 4.11(2)(p), 4.11(4)(s) or 4.11(4)(t) of
                  the Indenture, (xiii) any purchase of Capital Stock of
                  TransContinental, (xiv) repayments by TCR Holding of its
                  promissory note in the principal amount of $200,000,000 to
                  TARC as part of a contemporaneous exchange of subordinated
                  notes of TCR Holding, and (xv) any distribution, dividend or
                  payment on shares of Capital Stock of TCR Holding (x) the
                  proceeds of which are used to purchase Notes or (y) that are
                  exchanged for Notes.

         (r) The definition of "Subsidiary" is hereby amended to read as
         follows:

                           "Subsidiary" with respect to any Person, shall mean
                  (i) a corporation with respect to which such Person or such
                  Person and its Subsidiaries own, directly or indirectly, at
                  least fifty percent of whose Capital Stock with voting power,
                  under ordinary circumstances, to elect directors is at the
                  time, directly or indirectly, owned by such Person, by such
                  Person and one or more Subsidiaries of such Person or by one
                  or more Subsidiaries of such Person, or (ii) a partnership in
                  which such Person or a Subsidiary of such Person is, at the
                  time, a general partner of such partnership and has more than
                  50% of the total voting power of partnership interests
                  entitled (without regard to the occurrence of any contingency)
                  to vote in the election of managers thereof, or (iii) any
                  other Person (other than a corporation or a partnership) in
                  which such Person, one or more Subsidiaries of such Person, or
                  such Person and one or more Subsidiaries of such Person,
                  directly or indirectly, at the date of determination thereof
                  has (x) at least a fifty percent ownership interest or (y) the
                  power to elect or direct the election of the directors or
                  other governing body of such Person; provided, however, that
                  "Subsidiary" shall not include (i) any Unrestricted Subsidiary
                  of such Person, except for purposes of Section 4.10 of the
                  Indenture, (ii) an Accounts Receivable Subsidiary or (iii)
                  with respect to the Borrower, TransContinental.

         (s) A definition of "TARC" is hereby added to the Intercompany Loan
         Agreement to read in its entirety as follows:



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                           "TARC" shall mean TransAmerican Refining Corporation,
                  a Texas corporation.

         (t) A definition of "TCR Holding Pledge Agreement" is hereby added to
         the Intercompany Loan Agreement to read in its entirety as follows:

                           "TCR Holding Pledge Agreement" shall mean a pledge
                  agreement executed by TCR Holding in favor of TEC pledging all
                  of the common stock of TransContinental owned by TCR Holding
                  immediately following consummation of the Transaction as
                  security for the obligations of TCR Holding under the TARC
                  Working Capital Loan.

         (u) A definition of "TransContinental" is hereby added to the
         Intercompany Loan Agreement to read in its entirety as follows:

                           "TransContinental" shall mean TransContinental
                  Refining Corporation, a Delaware corporation, to which the
                  Refinery Assets will be transferred by TCR Holding pursuant to
                  the Transaction and, for purposes of Section 4.11 of the
                  Indenture, its Subsidiaries.

         (v) A definition of "TCR Holding" is hereby added to the Intercompany
         Loan Agreement to read in its entirety as follows:

                           "TCR Holding" shall mean TCR Holding Corporation, a
                  Delaware corporation, to which the Refinery Assets will be
                  transferred by TARC pursuant to the Transaction.

         (w) The definition of "TARC Security Documents" is hereby amended to
         read as follows:

                           "TARC Security Documents" shall mean this Loan
                  Agreement, the Disbursement Agreement, the TCR Holding Pledge
                  Agreement and each other agreement relating to the pledge of
                  assets to secure the Notes and any guarantee of the
                  obligations of the Borrower under the Note by any guarantor
                  that may be entered into after the date of the Note, pursuant
                  to the terms of the Note in each case, as amended from time to
                  time.

         (x) A definition of "TARC Working Capital Loan" is hereby added to the
         Intercompany Loan Agreement to read in its entirety as follows:

                           "TARC Working Capital Loan" shall mean any loan by
                  the Borrower to the Lender (other than the Loan).

         (y) A definition of "TEC Discount Notes" is hereby added to the
         Intercompany Loan Agreement to read in its entirety as follows:

                           "TEC Discount Notes" shall mean those certain 13%
                  Senior Secured Discount Notes due 2002 in the aggregate
                  principal amount of $1,130,000,000 issued by the Lender.

         (z) The definition of "TEC Notes" is hereby amended to read as follows:

                           "TEC Notes" shall mean the TEC Senior Notes and the
                   TEC Discount Notes.


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         (aa) A definition of "TEC Senior Notes" is hereby added to the
         Intercompany Loan Agreement to read in its entirety as follows:

                           "TEC Senior Notes" shall mean those certain 11 1/2%
                  Senior Secured Notes due 2002 in the aggregate principal
                  amount of $475,000,000 issued by the Lender.

         (bb) A definition of "Transaction" is hereby added to the Intercompany
         Loan Agreement to read in its entirety as follows:

                           "Transaction" means a series of related transactions
                  (as more fully described in the Company's Consent Solicitation
                  Statement dated September 30, 1998, as amended, pursuant to
                  which consents were solicited from the Holders to amendments
                  to the Indenture to facilitate the Transaction, which
                  description is incorporated herein by reference) pursuant to
                  which, among other things, (i) the Lien on the TARC Collateral
                  is released, (ii) TARC transfers to TCR Holding the Refinery
                  Assets in exchange for (x) all of the capital stock of TCR
                  Holding and (y) the assumption by TCR Holding of certain debt
                  and other obligations of TARC, (iii) TCR Holding transfers to
                  TransContinental the Refinery Assets in exchange for all of
                  the common stock of TransContinental and TransContinental
                  assumes the debt and other obligations of TARC assumed by TCR
                  Holding other than the TARC Working Capital Loan and (iv)
                  certain Purchasers purchase (x) debt securities issued by
                  TARC, (y) equity securities issued by TransContinental and (z)
                  TCR Holding capital stock from TARC for aggregate gross
                  proceeds of approximately $151 million.


         (cc) A definition of "Transaction Closing Date" is hereby added to the
         Intercompany Loan Agreement to read in its entirety as follows:

                           "Transaction Closing Date" shall mean the date the
                  Refinery Assets are transferred by TARC to TCR Holding and by
                  TCR Holding to TransContinental pursuant to the Transaction.

         (dd) A definition of "TransTexas Intercompany Loan" is hereby added to
         the Intercompany Loan Agreement to read in its entirety as follows:

                           "TransTexas Intercompany Loan" means the senior
                  secured promissory note from TransTexas to the Company in the
                  principal amount of $450,000,000.

         Section 1.03. Section 2.3 of the TARC Intercompany Loan Agreement.
Section 2.3(b) of the TARC Intercompany Loan Agreement is hereby amended as
follows:

                           (b) Borrower shall pay interest on the unpaid
                  principal amount of the Loan at a rate per anum equal to the
                  lesser of (i) sixteen percent (16%), and (ii) the Highest
                  Lawful Rate, until such principal amount shall be paid in
                  full, at the times and according to the terms and conditions
                  set forth in the Note, provided, however, that any amount of
                  principal which is not paid when due (whether at stated
                  maturity, by acceleration or otherwise) shall bear interest,
                  from the date on which such amount is due until such amount is
                  paid in full,





                                       9
   11

                  payable on demand at a rate per annum equal at all times to
                  the lesser of (i) the Default Rate and (ii) the Highest Lawful
                  Rate.

         Section 1.04. Section 2.4 of the TARC Intercompany Loan Agreement.
Section 2.4 of the TARC Intercompany Loan Agreement is hereby amended to add a
new sentence at the end thereof to read as follows:

                           Notwithstanding anything to the contrary herein, the
                  Borrower may repay the principal of the Loan by surrender to
                  the Lender of TEC Senior Notes or TEC Discount Notes. The
                  principal amount of the Loan shall be reduced upon such
                  surrender in an amount calculated pursuant to Section 3.1
                  hereof.

         Section 1.05. Section 3.1 of the TARC Intercompany Loan Agreement.
Section 3.1 of the TARC Intercompany Loan Agreement is hereby deleted in its
entirety and replaced with a new Section 3.1 to read in its entirety as follows:

                           Section 3.1 Deemed Prepayments. Upon receipt by the
                  Lender of any Excess Cash (as defined in the indenture
                  governing the TEC Notes, as in effect on the Transaction
                  Closing Date), including upon any prepayment of the TransTexas
                  Intercompany Loan, the Lender shall be obligated to use
                  commercially reasonable efforts to apply, within 90 days after
                  such receipt, an amount equal to such prepayment to purchase
                  TEC Notes in whatever established market then exists therefor
                  or in privately negotiated transactions, at prices less than
                  100% of the principal amount of the TEC Senior Notes purchased
                  or 100% of the accreted value of the TEC Discount Notes
                  purchased, as the case may be, in each case before adding
                  accrued but unpaid interest. Upon any repurchase or retirement
                  of TEC Notes by the Lender, or purchase of TEC Notes by any
                  Subsidiary of the Lender other than the Borrower or
                  TransTexas, or surrender of TEC Notes by or on behalf of the
                  Borrower or by TransTexas in payment of their respective
                  obligations to the Lender, the principal amount of the Loan
                  shall automatically be reduced by an amount equal to the
                  quotient of (i) the difference between (x) the TARC
                  Contribution immediately prior to such adjustment and (y) the
                  Needed TARC Contribution on the date of such repurchase,
                  retirement or surrender divided by (ii) the product of (x) the
                  annual interest rate of the Loan multiplied by (y) the years
                  to maturity of the Loan from the later of such date and June
                  15, 1999.

                           "TARC Contribution" means as of any date the sum of
                  (i) the product of (x) the principal amount of each TARC
                  Working Capital Loan on such date multiplied by (y) the years
                  to maturity of such TARC Working Capital Loan from such date
                  multiplied by (z) the annual interest rate of such TARC
                  Working Capital Loan on such date plus (ii) the product of (x)
                  the principal amount of the Loan on such date multiplied by
                  (y) the years to maturity of the Loan from the later of such
                  date and June 15, 1999 multiplied by (z) the annual interest
                  rate of the Loan on such date.

                           "Needed TARC Contribution" means as of any date the
                  amount equal to the difference between (i) the TEC Interest
                  Obligation on such date minus (ii) the TransTexas Contribution
                  on such date and minus (iii) cash or Cash Equivalents of TEC
                  available to pay cash interest on the TEC Notes.



                                       10
   12


                           "TEC Interest Obligation" means as of any date the
                  sum of (i) the product of (x) the principal amount of the TEC
                  Senior Notes on such date, after giving effect to each
                  repurchase or retirement of TEC Notes by the Lender, purchase
                  of TEC Notes by any Subsidiary of Lender other than Borrower
                  or TransTexas and surrender of TEC Notes to the Lender by or
                  on behalf of Borrower or TransTexas (assuming, in each case,
                  that such TEC Notes are no longer outstanding), multiplied by
                  (y) the years to maturity on such date of the TEC Senior Notes
                  multiplied by (z) the annual interest rate of the TEC Senior
                  Notes on such date or the Transaction Closing Date, whichever
                  is less, plus (ii) the product of (x) the principal amount of
                  the TEC Discount Notes on such date, after giving effect to
                  such repurchase, retirement, purchase or surrender (assuming,
                  in each case, that such TEC Notes are no longer outstanding),
                  multiplied by (y) the years to maturity of the TEC Discount
                  Notes from the later of such date and June 15, 1999 multiplied
                  by (z) the annual interest rate on such date or the
                  Transaction Closing Date, whichever is less.

                           "TransTexas Contribution" means as of any date the
                  sum of (i) the product of (x) the principal amount of each
                  TransTexas Working Capital Loan on the Transaction Closing
                  Date reduced by any prepayments of principal thereof in
                  accordance with its terms as in effect on the Transaction
                  Closing Date multiplied by (y) the years to maturity of such
                  TransTexas Working Capital Loan from such date multiplied by
                  (z) the annual interest rate of such TransTexas Working
                  Capital Loan on such date or the Transaction Closing Date,
                  whichever is greater, plus (ii) the product of (x) the
                  principal amount of the TransTexas Intercompany Loan on the
                  Transaction Closing Date reduced by any prepayments of
                  principal thereof in accordance with its terms as in effect on
                  the Transaction Closing Date multiplied by (y) the years to
                  maturity from such date of the TransTexas Intercompany Loan
                  multiplied by (z) the annual interest rate of the TransTexas
                  Intercompany Loan on such date or the Transaction Closing
                  Date, whichever is greater.

                           "TransTexas Working Capital Loan" means any
                  intercompany loan between TransTexas and the Company (other
                  than the TransTexas Intercompany Loan).

                           The Lender shall give Borrower notice of each
                  reduction in the principal amount due under the Loan pursuant
                  to this Section 3.1 and shall provide a calculation of such
                  reduction, in reasonable detail.

         Section 1.06. Section 3.2 of the TARC Intercompany Loan Agreement.
Section 3.2 of the TARC Intercompany Loan Agreement is hereby amended to read as
follows:

                           Section 3.2 Permitted Prepayments. The Borrower may
                  at any time make a prepayment of all or a portion of the
                  principal amount of the Note then outstanding (a "Permitted
                  Prepayment") at a prepayment price equal to the Accreted Value
                  of the portion of the outstanding principal amount of the Note
                  to be prepaid together with accrued and unpaid interest, if
                  any, to and including the date of such Permitted Prepayment.

         Section 1.07. Section 7.3 of the TARC Intercompany Loan Agreement.
Section 7.3 of the TARC Intercompany Loan Agreement is hereby amended to read as
follows:


                                       11
   13


                           Section 7.3 Covenants Incorporated by Reference. The
                  Borrower shall, and shall cause each of its Subsidiaries to,
                  comply with each covenant applicable to the Borrower or its
                  Subsidiaries, as described in the Indenture (as the Indenture
                  exists on the Transaction Closing Date) as if made by the
                  Borrower as of the date hereof.


         Section 1.08. Section 7.4 of the TARC Intercompany Loan Agreement. A
new Section 7.4 of the TARC Intercompany Loan Agreement is hereby added to read
as follows:

                           Section 7.4 Covenants of Lender. Until repayment in
                  full of the TEC Notes, the Lender shall comply with its
                  obligations under Section 4.21 of the Indenture and shall use
                  commercially reasonable efforts to apply all remaining Excess
                  Cash, except as provided in the following sentence, to effect
                  repurchases of TEC Notes at prices less than the face amounts
                  thereof. The Lender shall not be prohibited by this Section
                  7.4 from (i) retaining cash after making an Excess Cash Offer
                  pursuant to the terms of the Indenture in an amount sufficient
                  to pay interest on the TEC Notes which remain outstanding
                  after giving effect to purchases of Notes pursuant to such
                  Excess Cash Offer and (ii) retaining any amounts remaining
                  after compliance with Section 4.21 of the Indenture and making
                  the efforts required hereby with respect to remaining Excess
                  Cash, until such remaining amounts are loaned to TCR Holding
                  or TransContinental as an intercompany loan. The Lender shall
                  not, and shall not permit any of its Subsidiaries (other than
                  Borrower and any of its Subsidiaries) to, purchase any 16%
                  Senior Subordinated Notes due 2003 of TARC (or notes of TCR
                  Holding issued in exchange for such notes pursuant to the TCR
                  Holding exchange offer that is part of the Transaction).

         Section 1.09. Section 8.1 of the TARC Intercompany Loan Agreement.

         (a) Section 8.1(d) of the TARC Intercompany Loan Agreement is hereby
         amended to read as follows:

                           (d) a default which extends beyond any stated period
                  of grace applicable thereto, including any extension thereof,
                  under (i)(x) the Reimbursement and Credit Facility or (y) any
                  mortgage, indenture or instrument under which there is
                  outstanding any Debt of the Borrower or any of its
                  Subsidiaries with an aggregate principal amount in excess of
                  $25 million if by reason of such default the principal of such
                  Debt and all accrued and unpaid interest thereon has been
                  declared due and payable, or, in either case, failure to pay
                  such Debt at its stated maturity, provided that a waiver of
                  such default by the requisite lenders under such mortgage,
                  indenture or instrument shall constitute a waiver hereunder
                  for the same period or (ii) the Bridge Loan Notes or failure
                  to pay such Debt when due;

         (b) Section 8.1(h) of the TARC Intercompany Loan Agreement is hereby
         amended to read as follows:

                           (h) except as caused by the consummation of the
                  Transaction (including, without limitation, the release of the
                  liens on the Refinery Assets granted pursuant to the TARC
                  Security Documents), any of the TARC Security Documents shall
                  for any reason cease to be in full force and effect (except
                  where no material adverse effect to the Lenders would 





                                       12
   14

                  result), or shall cease to give the Lenders the Liens, rights,
                  powers and privileges purported to be created thereby
                  including but not limited to, a perfected security interest
                  in, and Lien on, the Collateral in accordance with the terms
                  thereof, except where the failure to have such Lien, rights,
                  powers and privileges shall not have a material adverse effect
                  on the Lender;

         Section 1.10. Section 8.2 of the TARC Intercompany Loan Agreement.
Section 8.2(a) of the TARC Intercompany Loan Agreement is hereby amended to read
as follows:

                           (a) If an Event of Default occurs and is continuing
                  (other than an Event of Default specified in Section 8.1(e) or
                  (f) above, relating to the Borrower or its Subsidiaries), then
                  in every such case, unless the principal of the Note shall
                  have already become due and payable, either the Indenture
                  Trustee or the Lender, by notice in writing to the Borrower
                  (and to the Indenture Trustee if given by the Lender) (an
                  "Acceleration Notice"), may declare the Accreted Value of the
                  outstanding principal amount of the Note and accrued and
                  unpaid interest thereon or, as appropriate, any prepayment
                  under 3.1(a) to be due and payable immediately. If an Event of
                  Default specified in Section 8.1(e) or (f) above occurs
                  relating to the Borrower or its Subsidiaries, all principal
                  and accrued and unpaid interest thereon will be immediately
                  due and payable on the Note without any declaration or other
                  act on the part of the Indenture Trustee or the Lender. The
                  Indenture Trustee generally is authorized to rescind such
                  acceleration if all existing Events of Default, other than the
                  non-payment of the principal and interest on the Note which
                  has become due solely by such acceleration, have been cured or
                  waived.

         Section 1.11. Section 9.3 of the TARC Intercompany Loan Agreement.
Section 9.3 of the TARC Intercompany Loan Agreement is hereby amended to read as
follows:

                           Section 9.3 Notices. Any notices or other
                  communications to the Borrower, the Lender or the Indenture
                  Trustee required or permitted hereunder shall be in writing,
                  and shall be sufficiently given if made by hand delivery, by
                  telex, by telecopier or registered or certified mail, postage
                  prepaid, return receipt requested, addressed as follows:

                           if to the Company:

                           TransAmerican Refining Corporation
                           1300 North Sam Houston Parkway East
                           Suite 320
                           Houston, Texas 77032
                           Attention: Ed Donahue
                           Vice President

                           and to:

                           Trust Company of the West
                           11100 Santa Monica Blvd.
                           20th Floor
                           Los Angeles, California 90025



                                       13
   15

                           Attention: Re: TransAmerican Refining

                           if to the Lender:

                           TransAmerican Energy Corporation
                           1300 North Sam Houston Parkway East
                           Suite 200
                           Houston, Texas 77032
                           Attention: Ed Donahue
                           Vice President

                           if to the Indenture Trustee:

                           Firstar Bank of Minnesota, N.A.
                           Corporate Trust Department
                           101 East Fifth Street, 12th Floor
                           St. Paul, Minnesota 55101-1860
                           Attention: Frank Leslie

                           The Borrower, the Lender or the Indenture Trustee by
                  notice to each other party may designate additional or
                  different addresses as shall be furnished in writing by such
                  party. Any notice or communication to the Borrower, the Lender
                  or the Indenture Trustee shall be deemed to have been given or
                  made as of the date so delivered, if personally delivered;
                  when answered back, if telexed; when receipt is acknowledged,
                  if telecopied; and five Business Days after mailing if sent by
                  registered or certified mail, postage prepaid (except that a
                  notice of change of address shall not be deemed to have been
                  given until actually received by the addressee).

         Section 1.12. Section 9.11 of the TARC Intercompany Loan Agreement.
Section 9.11 of the TARC Intercompany Loan Agreement is hereby added to read as
follows:

                           Section 9.11 Release. The Collateral, in whole or in
                  part, may be released in accordance with the Indenture (as the
                  Indenture exists on the Transaction Closing Date). Each of the
                  Lender and the Borrower hereby acknowledges and consents to
                  the release of Collateral by the Indenture Trustee, as the
                  Lender's agent, pursuant to the terms of the Indenture.

         Section 1.13. Section 9.12 of the TARC Intercompany Loan Agreement.
Section 9.12 of the TARC Intercompany Loan Agreement is hereby amended to read
as follows:

                           Section 9.12 Agreement. The term "Agreement," as used
                  in the Loan Agreement, and the terms "TARC Intercompany Loan
                  Agreement" and "Loan Agreement," as used in the other Loan
                  Documents, each shall mean and refer to the Loan Agreement, as
                  amended, modified, supplemented, restated, renewed, and/or
                  extended from time to time.

         Section 1.14. Section 9.15 of the TARC Intercompany Loan Agreement. A
new Section 9.15 of the TARC Intercompany Loan Agreement is hereby added to read
as follows:





                                       14
   16

                           Section 9.15 Amendments. This Agreement or any term
                  hereof may be amended or changed only by an instrument in
                  writing executed jointly by the Borrower and the Lender and in
                  accordance with Article IX of the Indenture.

         Section 1.15. Amendment to First Paragraph of Section 1 of Back of
Note. The first paragraph of Section 1 of the back of the TARC Intercompany Note
shall be amended to read as follows:

                           1.       Interest.

                           TransAmerican Refining Corporation, a Texas
                  corporation (the "Company"), promises to pay interest on the
                  principal amount of this Note at a rate of 16% per annum. To
                  the extent it is lawful, the Company promises to pay interest
                  on any interest payment due but unpaid on such principal
                  amount at the Default Rate.



                                   ARTICLE II
                                  MISCELLANEOUS

         Section 2.01. Ratification and Confirmation. As amended and modified by
this Third Amendment, the terms and provisions of the TARC Intercompany Loan
Agreement are hereby ratified and confirmed and shall continue in full force and
effect.

         Section 2.02. Reference to TARC Intercompany Loan Agreement. The TARC
Intercompany Loan Agreement, and any and all other agreements, documents or
instruments now or hereafter executed and delivered pursuant to the terms of the
TARC Intercompany Loan Agreement, are hereby amended so that any reference
therein to the TARC Intercompany Loan Agreement shall mean a reference to the
TARC Intercompany Loan Agreement as amended hereby.

         Section 2.03. Counterparts. This Third Amendment may be executed in one
or more counterparts, each of which when executed shall be deemed to be an
original, but all of which when taken together shall constitute one and the same
instrument.

         Section 2.04. Headings. The headings, captions and arrangements used in
this Third Amendment are for convenience only and shall not affect the
interpretation of this Third Amendment.

         Section 2.05. Governing Law. THIS THIRD AMENDMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK, WITHOUT
REGARD TO PRINCIPLES OF CONFLICTS OF LAWS.

         Section 2.06. Effectiveness of Amendments. This Third Amendment is
effective as of the date first above written. However, the provisions of the
TARC Intercompany Loan Agreement amended or eliminated as provided in this Third
Amendment (the "Amended Provisions") shall remain operative in the form in which
they exist in the TARC Intercompany Loan Agreement until the Transaction Closing
Date, whereupon the Amended Provisions will be amended or eliminated as provided
herein, effective immediately prior to the Transaction Closing Date.



                                       15
   17


         IN WITNESS WHEREOF, the parties hereto have caused this Third Amendment
to be executed as of the date of first written above.


                                       TRANSAMERICAN REFINING CORPORATION



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




                                       TRANSAMERICAN ENERGY CORPORATION


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








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