Document:

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                                                                    EXHIBIT 10.3

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                    ASSIGNMENT OF EARNINGS AND CHARTERPARTIES

                                   in favor of

                     MANUFACTURERS AND TRADERS TRUST COMPANY

                                   as Assignee

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                                  [DATE], 2004

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                    ASSIGNMENT OF EARNINGS AND CHARTERPARTIES

            THIS ASSIGNMENT is made this [DAY] day of [MONTH], 2004, from
[ASSIGNOR], a company organized and existing under the laws of the [JURISDICTION
OF INCORPORATION], with offices at [ADDRESS] (the "Assignor"), in favor of
MANUFACTURERS AND TRADERS TRUST COMPANY, a New York banking corporation, with
offices at 25 South Charles Street, Baltimore, Maryland, as trustee pursuant to
the Indenture referred to in Recital B hereto (the "Assignee").

                          W I T N E S S E T H T H A T:

WHEREAS:

            (A)   The Assignor is the sole, legal and beneficial owner of the
whole of [each of] the [NATIONALITY] flag vessel[s] listed on Schedule 1 hereto
(the ["Vessels", and each a] "Vessel");

            (B)   Pursuant to an indenture dated as of November 24, 2004, by
and among Ultrapetrol (Bahamas) Limited, as issuer (the "Company"), the
Guarantors party thereto (the "Guarantors"), the Pledgors party thereto (the
"Pledgors") and the Assignee as trustee, (as amended or supplemented from time
to time, the "Indenture"), the Company issued its 9% First Preferred Ship
Mortgage Notes due 2014 (the "Securities") in the aggregate principal amount of
One Hundred Eighty Million United States Dollars (US$180,000,000), the proceeds
of which have been used to repay the Company's 10 1/2% First Preferred Ship
Mortgage Notes dues 2008, to refinance the acquisition cost of other vessels
owned by the Guarantors, and for general corporate purposes;

            (C)   By the Indenture, the Guarantors [(including the Assignor)],
have jointly and severally guaranteed, upon the terms and conditions contained
therein, the punctual payment, performance and observance when due of the
obligations of the Company under and in connection with the Securities,
including, but not limited to, the Company's obligation to pay the principal of,
and premium and interest on, the Securities as provided in the Indenture and the
Securities;

            (D)   By the Security Agreements (other than this Assignment), the
Guarantors [(including the Assignor)] and the Pledgors [(including the
Assignor)] have, upon the terms and conditions contained therein, pledged
certain assets held by them, including the Vessel[s], and assigned certain
insurances obtained by them, to secure the punctual payment, performance and
observance when due of the obligations of the Company under and in connection
with the Indenture and Securities, including, but not limited to, the Company's
obligation to pay the principal of, and premium and interest on, the Securities
as provided in the Indenture and the Securities; and

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            (E)   The Assignor has agreed to grant this Assignment to secure its
and the Company's obligations under the Indenture, and in order to secure the
prompt and due payment to the Trustee of any and all sums which may be or become
due to the Trustee and/or the Securityholders from the Assignor under or
pursuant to the Indenture and also to secure the exact performance and
observance and compliance with all and any of the covenants and agreements and
terms and conditions contained in the Indenture,

            NOW, THEREFORE, in consideration of the premises and other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged by the Assignor:

            1.    Defined Terms. Unless otherwise defined herein, terms defined
in the Indenture shall have the same meanings when used herein.

            2.    Grant of Security. As security for all Obligations of the
Assignor, the [other] Subsidiary Guarantors and the Company pursuant to the
Indenture and the other Security Agreements, and in consideration of One Dollar
($1) lawful money of the United States of America, and other good and valuable
consideration, the receipt of which is hereby acknowledged, the Assignor, as
legal and beneficial owner, does hereby grant, sell, convey, assign, transfer
and set over unto the Assignee, for the benefit of the Assignee and its
successors and assigns, and does hereby grant the Assignee a security interest
in, all of the Assignor's right, title and interest in and to (i) any charter or
other contract entered into by the Assignor in respect of [the/any] Vessel; (ii)
all earnings of the Vessel[s], including, but not limited to, all moneys and
claims for moneys due and to become due thereto, whether as charter hire,
freights, passage moneys, indemnities, payments or otherwise, under, and all
claims for damages arising out of any breach of (or payment for variation or
termination), any charter or any other bareboat, time or voyage charter,
contract of affreightment or other contract for the use or employment of
[the/any] Vessel and operations of every kind whatsoever of [the/any] Vessel,
(iii) all remuneration for salvage and towage services, demurrage and detention
moneys and any other earnings whatsoever due or to become due to the Assignor
arising from the use or employment of [the/any] Vessel, (iv) all moneys or other
compensation payable by reason of requisition for title or for hire or other
compulsory acquisition of [the/any] Vessel and all claims for damages in respect
of the actual or constructive total loss of [the/any] Vessel, and (v) all
proceeds of all of the foregoing (herein called "Earnings").

            3.    Occurrences following Default. The Assignor hereby further
covenants and agrees that upon the occurrence of a Default or an Event of
Default (a) it will have all the Earnings and other freights, hire and other
monies hereby assigned paid over directly to the Assignee, (b) will procure that
notice of this Assignment in substantially the form of Exhibit 1 attached hereto
and a letter of instructions shall be duly given to each person who becomes
party to any charter or contract of affreightment entered into with the Assignor
in respect of [the/any] Vessel or to any Person who may receive any earnings and
monies hereby assigned, (c) it will instruct each such person to provide consent
where the consent of any such person is required pursuant to any charter or
contract of affreightment assigned hereby, and (d) it will instruct such

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person to acknowledge directly to the Assignee receipt of the Assignor's
notification and instructions.

            4.    Performance under Charters; No Duty of Inquiry. The Assignor
hereby undertakes that, notwithstanding the assignment herein contained, it
shall punctually perform all its obligations under all charters and contracts
pertaining to [the/each] Vessel to which it is a party. It is hereby expressly
agreed that, anything contained herein to the contrary notwithstanding, the
Assignor shall remain liable under all charters and contracts pertaining to
[the/each] Vessel to which it is a party to perform the obligations assumed by
it thereunder, and the Assignee shall have no obligation or liability under any
such charter or contract by reason of or arising out of the assignment contained
herein, nor shall the Assignee be required to assume or be obligated in any
manner to perform or fulfill any obligation of the Assignor under or pursuant to
any such charter or contract or to make any payment or make any inquiry as to
the nature or sufficiency of any payment received by the Assignee, or, unless
and until indemnified to its satisfaction, to present or file any claim or to
take any other action to collect or enforce the payment of any amounts which may
have been assigned to it or to which it may be entitled hereunder or pursuant
hereto at any time or times.

            5.    Requisition. The Assignor shall promptly notify the Assignee
in writing of the commencement and termination of any period during which
[the/any] Vessel may be requisitioned.

            6.    Employment of Vessel[s]. The Assignor hereby further covenants
and undertakes promptly to furnish the Assignee with all such information as it
may from time to time require regarding the employment, position and engagements
of [the/any] Vessel.

            7.    Negative Pledge. The Assignor does hereby warrant and
represent that it has not assigned or pledged, and hereby covenants that it will
not assign or pledge so long as this Assignment shall remain in effect, any of
its right, title or interest in the whole or any part of the Earnings and other
moneys and claims hereby assigned to anyone other than the Assignee, and it will
not take or omit to take any action, the taking or omission of which might
result in an alteration or impairment of the rights hereby assigned or any of
the rights created in this Assignment; and the Assignor does hereby irrevocably
appoint and constitute the Assignee as the Assignor's true and lawful
attorney-in-fact with full power (in the name of the Assignor or otherwise)
should an Event of Default have occurred and be continuing to ask, require,
demand, receive, compound and give acquittance for any and all moneys and claims
for moneys assigned hereby, to endorse any checks or other instruments or orders
in connection therewith, to file any claims or take any action or institute any
proceedings which the Assignee may deem to be necessary or advisable in the
premises and to file any and all Uniform Commercial Code financing statements or
renewals thereof in connection with this Assignment which the Assignee may deem
to be necessary or advisable in order to perfect or maintain the security
interest granted hereby.

            8.    Application of Proceeds. All moneys collected or received from
time to time by the Assignee pursuant to this Assignment shall be dealt with as
provided in the Indenture.

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            9.    Further Assurances. The Assignor agrees that at any time and
from time to time, upon the written request of the Assignee, the Assignor will
promptly and duly execute and deliver any and all such further instruments and
documents as the Assignee may deem desirable in obtaining the full benefits of
this Assignment and of the rights and powers herein granted.

            10.   Remedies Cumulative and Not Exclusive; No Waiver. Each and
every right, power and remedy herein given to the Assignee shall be cumulative
and shall be in addition to every other right, power and remedy of the Assignee
now or hereafter existing at law, in equity or by statute, and each and every
right, power and remedy, whether herein given or otherwise existing, may be
exercised from time to time, in whole or in part, and as often and in such order
as may be deemed expedient by the Assignee, and the exercise or the beginning of
the exercise of any right, power or remedy shall not be construed to be a waiver
of the right to exercise at the same time or thereafter any other right, power
or remedy. No delay or omission by the Assignee in the exercise of any right or
power or in the pursuance of any remedy accruing upon any breach or default by
the Company or the Assignor or any other Guarantor or Pledgor shall impair any
such right, power or remedy or be construed to be a waiver of any such right,
power or remedy or to be an acquiescence therein; nor shall the acceptance by
the Assignee of any security or of any payment of or on account of any of the
amounts due from the Company or the Assignor or any other Guarantor or Pledgor
to the Assignee and maturing after any breach or default or of any payment on
account of any past breach or default be construed to be a waiver of any right
to take advantage of any future breach or default or of any past breach or
default not completely cured thereby.

            11.   Invalidity. If any provision of this Assignment shall at any
time for any reason be declared invalid, void or otherwise inoperative by a
court of competent jurisdiction, such declaration or decision shall not affect
the validity of any other provision or provisions of this Assignment, or the
validity of this Assignment as a whole, which shall remain in full force and
effect. In the event that it should transpire that by reason of any law or
regulation, or by reason of a ruling of any court, or by any other reason
whatsoever, the assignment herein contained is either wholly or partly
defective, the Assignor hereby undertakes to furnish the Assignee with an
alternative assignment or alternative security and/or to do all such other acts
as, in the sole opinion of the Assignee, shall be required in order to ensure
and give effect to the full intent of this Assignment. The powers and
authorities granted to the Assignee and its successors or assigns herein have
been given for valuable consideration and are hereby declared to be irrevocable.

            12.   Continuing Security. It is declared and agreed that the
security created by this Assignment shall be held by the Assignee as a
continuing security for the payment of all moneys which may at any time and from
time to time be or become payable by the Assignor or the Company pursuant to the
Indenture and that the security so created shall not be satisfied by an
intermediate payment or satisfaction of any part of the amount hereby secured
and that the security so created shall be in addition to and shall not in any
way be prejudiced or affected by any collateral or other security now or
hereafter held by the Assignee for all or any part of the moneys hereby secured.

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            13.   Waiver; Amendment. None of the terms and conditions of this
Assignment may be changed, waived, modified or varied in any manner whatsoever
unless in writing duly signed by the Assignee and the Assignor.

            14.   Termination. If the Assignor shall pay and discharge all of
its obligations under or in connection with the Indenture or is released
therefrom in accordance with the terms thereof, all of the right, title and
interest herein assigned shall revert to the Assignor and this Assignment shall
terminate.

            15.   WAIVER OF JURY TRIAL. EACH OF THE ASSIGNOR, AND BY ITS
ACCEPTANCE HEREOF, THE ASSIGNEE, HEREBY WAIVES TRIAL BY JURY IN ANY ACTION,
PROCEEDING OR COUNTERCLAIM BROUGHT BY ANY PARTY HERETO OR ANY BENEFICIARY HEREOF
ON ANY MATTER WHATSOEVER ARISING OUT OF OR IN ANY WAY CONNECTED WITH THIS
ASSIGNMENT, THE INDENTURE OR THE SECURITY AGREEEMENTS TO WHICH THEY ARE PARTY
THEREIN DESCRIBED, ANY AMENDMENTS THERETO, OR THE TRANSACTIONS CONTEMPLATED
HEREBY OR THEREBY.

            16.   Notices. Notices and other communications hereunder shall be
in writing and may be sent by facsimile as follows:

If to the Assignor:      [ASSIGNOR]
                         [ADDRESS]
                         Attention: [NAME].
                         Facsimile: [NUMBER]

with copy to:            Seward & Kissel LLP
                         One Battery Park Plaza
                         New York, New York 10004
                         Attention: Lawrence Rutkowski, Esq.
                         Facsimile: 212-480-8421

If to the Assignee:      Manufacturers and Traders Trust Company
                         Corporate Trust Department
                         Mail Code 101-591
                         25 South Charles Street
                         Baltimore, Maryland 21201-1643
                         Attention: Robert D. Brown
                         Facsimile: 410-244-4236

With copy to:            Ober, Kaler, Grimes & Shriver
                         120 East Baltimore Street
                         Baltimore, Maryland 21202
                         Attention: Patrick Cameron, Esq.
                         Facsimile: 443-263-7540

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or to such other address as either party shall from time to time specify in
writing to the other. Any notice sent by facsimile shall be confirmed by letter
dispatched as soon as practicable thereafter.

            Every notice or other communication shall, except so far as
otherwise expressly provided by this Assignment, be deemed to have been received
(provided that it is received prior to 2 p.m. New York time; otherwise it shall
be deemed to have been received on the next following Business Day) in the case
of a facsimile on the date of dispatch thereof (provided further that if the
date of dispatch is not a Business Day in the locality of the party to whom such
notice or demand is sent, it shall be deemed to have been received on the next
following Business Day in such locality), and in the case of a letter, at the
time of receipt thereof.

            17.   Governing Law. This Assignment shall be governed by and
construed in accordance with the laws of the State of New York.

            18.   Headings. In this Assignment, Section headings are inserted
for convenience of reference only and shall be ignored in the interpretation
hereof.

            IN WITNESS WHEREOF, the Assignor has caused this Assignment to be
executed on the day and year first above written.

                                                    By__________________________
                                                    [NAME]
                                                    [TITLE]

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                                   SCHEDULE 1

<TABLE>
<CAPTION>
                Official                                              Gross          Net
Vessel Name      Number         Length     Breadth      Depth          Tons          Tons
-----------     --------        ------     -------      -----         -----          ----
                                 mts         mts         mts
<S>             <C>             <C>        <C>          <C>           <C>            <C>
</TABLE>

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                                                                       EXHIBIT 1

                           EARNINGS ASSIGNMENT NOTICE

TO:

TAKE NOTICE:

            (a)   that by an Assignment of Earnings dated the [DAY] day of
[MONTH], 2004 made by us (the "Assignor") to MANUFACTURERS AND TRADERS TRUST
COMPANY (the "Assignee"), we, the owner of the [NATIONALITY] flag vessels
[VESSEL NAME], Provisional Patente No. [NUMBER] (the "Vessels"), have assigned
to the Assignee as from the date thereof all our right, title and interest in
and to:

                  (i)   any moneys whatsoever payable to us under any bareboat,
                        time or voyage charter, contract of affreightment or
                        other contract for the use or employment of the Vessels,
                        all freight, hires, passage monies and all other rights
                        and benefits whatsoever accruing to us thereunder,
                        including (but without prejudice to the generality of
                        the foregoing) all claims for damages in respect of any
                        breach by any charterer or other party thereto of any
                        such bareboat, time or voyage charter, contract of
                        affreightment or other contract for the use or
                        employment of the Vessels; and

                  (ii)  all freights, passage moneys, hire moneys or other
                        compensation payable to us in the event of the
                        requisition of the Vessels for title or hire,
                        remuneration for salvage and towage services, demurrage
                        and detention moneys and any other earnings whatsoever
                        due or to become due to us arising from the use or
                        employment of the Vessels;

 as security for that indenture dated as of November 24, 2004, (as at any time
 amended or modified, the "Indenture") among the Assignor, certain other
 Guarantors named therein, the Pledgors named therein, the Assignee and
 Ultrapetrol (Bahamas) Limited.

<PAGE>

            (b)   that you are hereby irrevocably authorized and instructed to
pay as from the date hereof all of such aforesaid moneys to the Assignee, for
the account of Ultrapetrol (Bahamas) Limited (Account No. [NUMBER]) at the above
address of the Assignee (or at such other place as the Assignee may direct).

DATED THIS [DAY] day of [MONTH], 2004

                                                  By____________________________
                                                   Name:
                                                   Title:

                                        2<PAGE>

                                                                  EXHIBIT 10.4
                                                                  EXECUTION COPY

                    ESCROW AND PLEDGE AGREEMENT, dated as of November 24, 2004
               (the "Agreement"), between ULTRAPETROL (BAHAMAS) LIMITED, a
               Bahamian corporation (the "Company"), and MANUFACTURERS AND
               TRADERS TRUST COMPANY, a New York banking corporation, as Escrow
               Agent (the "Escrow Agent").

          This Agreement is being entered into in connection with (i) the
Purchase Agreement (the "Purchase Agreement"), dated November 24, 2004, among
the Company, the Subsidiary Guarantors (as named therein), the Pledgors (as
named therein) and Credit Suisse First Boston LLC, as the Initial Purchaser, and
(ii) the Indenture (the "Indenture"), dated as of November 24, 2004, among the
Company, the Subsidiary Guarantors (as named therein), the Pledgors (as named
therein) and Manufacturers and Traders Trust Company ("MT&T"), as trustee (MT&T
or any successor trustee, the "Trustee").

          Pursuant to the Purchase Agreement, the Company is selling (the
"Offering") $180,000,000 in aggregate principal amount of its 9% First Preferred
Ship Mortgage Notes Due 2014 (the "Securities"). Concurrently with the closing
of such sale, the Company will deposit with the Escrow Agent as hereinafter
provided, approximately $30.0 million of the net proceeds thereof. Such funds
will be used (a) to purchase additional Vessels and pay for certain delivery,
maintenance and repair costs as set forth herein or (b) to fund the Special
Mandatory Redemption and for no other purposes other than as set forth herein.

          Accordingly, the Company and the Escrow Agent agree as follows:

          1. Definitions. Capitalized terms used but not defined herein have the
respective meanings specified in the Indenture. In addition, the following terms
shall have the following meanings when used herein:

          "Escrow Account" means an account established by the Escrow Agent in
     the name of "Manufacturers and Traders and Trust Company," as Escrow Agent
     for the Company.

          "Initial Deposit" means an amount of cash equal to $30,000,000.00.

          "Permitted Investments" means (i) Treasury Securities; (ii)
     investments in time deposits, certificates of deposit or money market
     deposits maturing within 90 days of the date of acquisition thereof,
     entitled to U.S. Federal deposit insurance for the full amount thereof or
     issued by a bank or trust company which is organized under the laws of the
     United States or any state thereof having capital and surplus in excess of
     $500 million; (iii) any proprietary money-market funds of MT&T or any of
     its subsidiaries for which funds it or one of its affiliates serves as
     investment advisor or to which it provides other services and receives
     compensation therefor or any other non-proprietory money market mutual
     funds of investment grade; or (iv) any other Temporary Cash Investment;
     provided, however, that no investment bearing a maturity date shall mature
     later than the Special Mandatory Redemption Date.

          "Special Mandatory Redemption" means the redemption on January 30,
     2006 (the "Special Mandatory Redemption Date"), by the Company of
     Securities at a redemption price of 101% of the principal amount of the
     Securities, plus accrued and unpaid interest to the redemption date, in the
     event the amount of cash and the fair market value (as determined by the
     Board of Directors in good faith) of all Permitted Investments the Escrow
     Account exceeds $1.0 million after the close of business on December 31,
     2005.

          "Treasury Securities" means debt obligations issued or guaranteed by

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     the government of the United States of America or any agency thereof for
     which the full faith and credit of the United States of America is pledged
     to secure payment in full at maturity and which are not redeemable at the
     option of the issuer prior to maturity.

          2. Delivery and Acceptance of Escrowed Property. (a) (i) On the date
hereof, the Escrow Agent shall establish the Escrow Account into which the
Escrow Agent will, concurrently with the execution and delivery hereof, deposit
the Initial Deposit received from the Company.

          (ii) The Company may, concurrently with such cash deposit, deliver to
     the Escrow Agent (A) a written confirmation or sales order for delivery to
     the Escrow Account which sets forth the cost of Permitted Investments to be
     acquired by the Company and their principal amount at maturity, if
     applicable, and (B) irrevocable instructions directing the Escrow Agent to
     release some or all of the cash constituting the Initial Deposit to the
     seller of such Permitted Investments in an amount equal to the purchase
     price thereof against delivery of such Treasury Securities.

          (b) The Initial Deposit, together with the interest, dividends and
distributions thereon, less any amounts released pursuant to the terms of this
Agreement, shall from time to time constitute the "Escrowed Property." The
Escrow Agent further agrees to invest any portion of the Escrowed Property
represented by cash in Permitted Investments as directed in writing from time to
time by the Company. Any funds received by the Escrow Agent for which the
Company has not given written investment instructions shall be invested in an
interest bearing Permitted Investment at a non-United States (i.e., offshore)
financial institution or mutual fund selected by the Escrow Agent in his sole
discretion.

          (c) The obligation and liability of the Escrow Agent to make the
payments and transfers required by this Agreement shall be limited to the
Escrowed Property and any other moneys on deposit with it pursuant to this
Agreement. The Escrow Agent shall not be liable for any loss resulting from any
investment made pursuant to this Agreement in compliance with the provisions
hereof.

          3. Disbursement of Escrowed Property. (a) On any date (a "Release
Date"), the Escrow Agent will release Escrowed Property to or at the order of
the Company, provided that the Escrow Agent shall have received a written
request in the form of Exhibit A hereto (the "Release Certificate") from the
Company, signed by two Officers of the Company, at least 5 Business Days prior
to such Release Date, and provided that the following conditions have been
satisfied, in the reasonable judgment of the Escrow Agent, prior to or
simultaneous with the release of Escrowed Property:

          (i) If the Company proposes to consummate on the date of the release
     of the Requested Amount, one or more Acquisition Contracts in connection
     with the acquisition of one or more additional Vessels, the Escrow Agent
     shall have received:

          (A)(1) fully executed mortgage releases and satisfaction documents
     (the "Release Documents") from the holders of any existing indebtedness
     with respect to such additional Vessels, which Release Documents shall be
     in appropriate form for recording or registration in the appropriate
     governmental offices, as to which the Escrow Agent shall be entitled to
     rely on the Opinion of Counsel (as defined below) to the Company described
     in clause (iv) below and (2) evidence satisfactory to the Escrow Agent to
     the effect that any existing indebtedness had been, or will be, repaid as
     of such Date;

          (B) fully executed mortgages and related deeds of covenant, if
     required, and fully executed related assignments of insurance, assignments

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     of time charter and assignments of freights and hires, all substantially in
     the form of Exhibit D hereto (the "Security Agreements") with respect to
     each such additional Vessel, dated the date such additional Vessel is to be
     tendered to the Trustee which Security Agreements shall be in appropriate
     form for recording a registration in the appropriate governmental offices
     if required by applicable law in order to perfect the security interest
     therein created, as to which the Escrow Agent shall be entitled to rely on
     the Opinion of Counsel to the Company described in clause (iv) below;

          (C) original certificates representing the Capital Stock of the
     Restricted Subsidiary acquiring such additional Vessel of which the Company
     or a Wholly Owned Subsidiary that is a Subsidiary Guarantor is the record
     and beneficial owner (unless such Restricted Subsidiary is already a
     Subsidiary Guarantor), together with an Officers' Certificate in the form
     of Exhibit B hereto;

          (D) copies, certified to be true and complete by an Officer of the
     Company, of one or more fully executed Acquisition Contracts covered by
     such Release Certificate;

          (E) copies, certified to be true and complete by an Officer of the
     Company, of any Charters related to such additional Vessels;

          (F) the report of an insurance broker required by Section 3(U)(viii)
     of the form mortgage or deed of covenant attached hereto as part of Exhibit
     D, with respect to insurance policies maintained in respect of each such
     additional Vessel, which report shall include loss payable clauses
     substantially in the form set forth in Schedule 1 to the assignments of
     insurances attached hereto as part of Exhibit D;

          (G) with respect to oceangoing vessels, a classification certificate,
     dated as of a date not more than 30 days prior to the Release Date, from a
     classification society with respect to each such additional Vessel;

          (H) a Guarantee Agreement executed by the owner of such additional
     Vessel as a new Subsidiary Guarantor (if not already a Subsidiary
     Guarantor), substantially in the form of Exhibit F hereto; and

          (I) written appraisals by two independent Appraisers of the value of
     such additional Vessel as of a date within 90 days prior to such Release
     Date.

          (ii) If such Release Request is made in connection with the execution
     (but not the consummation) of one or more Acquisition Contracts in respect
     of one or more additional Vessels, the Escrow Agent shall have received:

          (A) copies, certified to be true and complete by an Officer of the
     Company, of one or more fully executed Acquisition Contracts covered by
     such Release Requests;

          (B) a fully executed Officers' Certificate of the Company
     substantially in the form of Exhibit B hereto;

          (C) to the extent available, copies, certified to be true and complete
     by an Officer of the Company, of any Charters related to the additional
     Vessels, to the extent such Charters will continue after consummation of
     the Acquisition Contracts:

          (iii) If such Release Request is made in connection with, or within
     six months after, the acquisition of an additional Vessel with Escrowed
     Property, for the purpose of necessary maintenance, repair (including
     structural modifications) or drydocking expenses in relation to such
     vessel, the Escrow Agent shall have received

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          (A) a fully executed Officers' Certificate of the Company
     substantially in the form of Exhibit B hereto;

          (B) all invoices or written estimates of the cost of such maintenance,
     repair or drydocking expenses in relation to the additional Vessel;

          (iv) The Escrow Agent shall have received one or more signed opinions
     of counsel substantially in the form of Exhibit E hereto with such changes
     as may be necessary to conform to the legal requirements of the relevant
     jurisdiction (the "Opinion of Counsel"); and

          (v) The Escrow Agent shall have received any other documents or
     certificates reasonably requested by the Escrow Agent to establish that the
     conditions described in Section 3(a) have been complied with in all
     material respects.

          (b) Notwithstanding paragraph 3(a) above, if the Escrow Agent receives
a notice from the Trustee or otherwise becomes aware that a Default or Event of
Default has occurred and is continuing, the Escrow Agent will not release any
Escrowed Property to the Company unless and until the Escrow Agent receives a
notice from the Trustee that such Default or Event of Default, as the case may
be, is not continuing or has been waived in accordance with the terms of the
Indenture.

          4. Disbursement of Escrowed Property in Connection with Special
Mandatory Redemption. If the Escrow Agent receives notice or otherwise becomes
aware that the Securities have become subject to the Special Mandatory
Redemption pursuant to paragraph 6 of the Securities and Article 3 of the
Indenture, the Escrow Agent shall (i) liquidate all Escrowed Property then held
by it not later than the third Business Day prior to the Special Mandatory
Redemption Date and (ii) release all the Escrowed Property to the Paying Agent
on the Special Mandatory Redemption Date.

          To the extent that, after the close of business on December 31, 2005,
the amount of cash and the fair market value (as determined by the Board of
Directors in good faith) of securities (including the Permitted Investments) on
deposit in the Escrow Account with the Escrow Agent is equal to or less than
$1.0 million, such cash and Permitted Investment will be promptly released to
the Company, free of any lien of the Indenture or the Escrow Agreement, and the
Escrow Agreement will be terminated.

          5. Disbursement of Escrowed Property upon the Occurrence of Remedies
Trigger Event. (a) If the Escrow Agent receives a notice from the Trustee that
the principal of and interest on the Securities then outstanding have become
immediately due and payable pursuant to Section 6.02 of the Indenture (an
"Acceleration Event") and such acceleration is not rescinded on or prior to the
earlier of five Business Days after receipt of such notice and the Special
Mandatory Redemption Date (a "Remedies Trigger Event"), the Escrow Agent will
liquidate all Escrowed Property then held by it in accordance with paragraph (b)
below.

          (b) Upon the occurrence and during the continuance of a Remedies
Trigger Event (so long as the acceleration related thereto has not been
rescinded), but not otherwise, the Escrow Agent may, without notice except as
specified below, sell the Escrowed Property or any part thereof in one or more
parcels at public or private sale, at any exchange, broker's board or at any of
the Escrow Agent's offices or elsewhere, for cash, on credit or for future
delivery, upon such terms as the Escrow Agent may determine to be commercially
reasonable, and the Escrow Agent, the Trustee or any holder of the Securities
may be the purchaser of any or all of the Escrowed Property so sold and
thereafter hold the same, absolutely, free from any right or claim of whatsoever
kind. The Company agrees that, to the extent notice of sale shall be required by

                                    Page 4
<PAGE>

law, at least 2 Business Days' notice to the Company of the time and place of
any public sale or the time after which any private sale is to be made shall
constitute reasonable notification. The Escrow Agent shall not be obligated to
make any sale of Escrowed Property regardless of notice of sale having been
given. The Escrow Agent may adjourn any public or private sale from time to time
by announcement at the time and place fixed therefor, and such sale may, without
further notice, be made at the time and place to which it was so adjourned. The
Escrow Agent shall incur no liability as a result of the sale of the Escrowed
Property, or any part thereof, at any private sale conducted in a commercially
reasonable manner. The Company hereby waives any claims against the Escrow Agent
arising by reason of the fact that the price at which any Escrowed Property may
have been sold at such a private sale was less than the price which might have
been obtained at a public sale, even if the Escrow Agent accepts the first offer
received and does not offer such Escrowed Property to more than one offeree.

          (c) Upon the occurrence and during the continuance of a Remedies
Trigger Event (so long as the acceleration related thereto has not been
rescinded), any cash held by the Escrow Agent as Escrowed Property and all cash
proceeds received by the Escrow Agent in respect of any sale of, collection
from, or other realization upon, all or any part of the Escrowed Property
pursuant to Section 5(b), shall be released by the Escrow Agent to the Paying
Agent for payment to the holders of the Securities.

          (d) This Agreement shall create a continuing Lien on the Escrowed
Property that shall (i) remain in full force and effect until the earlier of (A)
the payment in full of the Securities and the other Obligations and (B) the
release of all Escrowed Property in accordance with the provisions of this
Agreement, (ii) be binding upon the Company and its successors and assigns and
(iii) enure to the benefit of the Escrow Agent, the holders of the Securities
and their respective successors, transferees and assigns.

          6. Security Interest in Favor of Escrow Agent; Escrowed Property. (a)
To secure the full and punctual payment when due and the full and punctual
performance of all amounts that may be payable from time to time under the
Indenture, the Security Agreements and the Securities, the Company hereby grants
to the Escrow Agent, for the benefit of the Escrow Agent, the Trustee and the
holders of the Securities, a security interest in all its right, title and
interest in and to the following, other than such of the following which are
released from the Lien of this Agreement pursuant to Section 3 hereof:

          (i) the Initial Deposit and all certificates or instruments
     representing any of the Permitted Investments; and

          (ii) all interest, dividends, cash, instruments and other property and
     proceeds from time to time received, receivable or otherwise distributed in
     respect of or in exchange for any of the foregoing.

          (b) Any and all cash, certificates or instruments representing or
evidencing the Escrowed Property shall be delivered to and held by or on behalf
of the Escrow Agent and shall be in suitable form for transfer by delivery, or
shall be accompanied by duly executed instruments of transfer or assignment in
blank, all in form and substance satisfactory to the Escrow Agent. The Escrow
Agent shall have the right, at any time after the occurrence and during the
continuance of an Event of Default, in its discretion and without notice to the
Company, to transfer to or to register in the name of the Escrow Agent or any of
its nominees any or all the Escrowed Property. In addition, the Escrow Agent
shall have the right at any time to exchange certificates or instruments
representing or evidencing Escrowed Property for certificates or instruments of
different denominations.

          (c) The Company hereby represents and warrants with respect to any
Escrowed Property:

                                    Page 5
<PAGE>

          (i) it is the legal and beneficial owner of the Escrowed Property and
     has full corporate power, authority and legal right to pledge all the
     Escrowed Property; and

          (ii) the pledge pursuant to Section 6(a) made in accordance with the
     terms of the Indenture creates a valid and perfected first priority Lien on
     the Escrowed Property securing the payment and performance of all amounts
     that may be payable from time to time under the Indenture, the Security
     Agreements and the Securities.

          (d) The Company agrees that at any time and from time to time, at the
expense of the Company, the Company will promptly execute and deliver all
further instruments and documents and take all further action that may be
necessary or that the Escrow Agent may reasonably request in order to perfect
and protect any Lien granted or purported to be granted hereby or to enable the
Escrow Agent to exercise and enforce its rights and remedies hereunder with
respect to any Escrowed Property.

          (e) (i) The Escrow Agent shall be entitled to receive and retain as
     collateral in the Escrow Account all interest and dividends paid and
     distributions made in respect of the Permitted Investments. Any such
     interest or dividends shall, if received by the Company, be received in
     trust for the benefit of the Escrow Agent, be segregated from the other
     property or funds of the Company and be forthwith delivered to the Escrow
     Agent as collateral in the same form as so received (with any necessary
     endorsement).

          (ii) As long as no Event of Default shall have occurred and be
     continuing and until written notice thereof from the Escrow Agent to the
     Company, the Company shall be entitled to exercise any and all voting and
     other consensual rights relating to Permitted Investments or any part
     thereof for any purpose; provided, however, that no vote shall be cast, and
     no consent, waiver or ratification given or action taken, which would be
     inconsistent with or violate any provision of this Agreement, the
     Indenture, the Security Agreements or the Securities.

          (iii) Upon the occurrence and during the continuance of an Event of
     Default, all rights of the Company to exercise the voting and other
     consensual rights that it would otherwise be entitled to exercise pursuant
     to Section 6(e)(ii) shall cease upon notice from the Escrow Agent to the
     Company and upon the giving of such notice all such rights shall thereupon
     be vested in the Escrow Agent who shall thereupon have the sole right to
     exercise such voting and other consensual rights.

          (iv) In order to permit the Escrow Agent to exercise the voting and
     other consensual rights which it may be entitled to exercise pursuant to
     Section 6(e)(iii), and to receive all interest, dividends and distributions
     which it may be entitled to receive under Section 6(e)(i), the Company
     shall, if necessary, upon written request from the Escrow Agent, from time
     to time execute and deliver to the Escrow Agent such instruments as the
     Escrow Agent may reasonably request.

          (f) The Company hereby appoints the Escrow Agent as the Company's
attorney-in-fact, with full authority in the place and stead of the Company and
in the name of the Company or otherwise, from time to time in the Escrow Agent's
discretion but only after the occurrence and during the continuance of an Event
of Default, to take any action and to execute any instrument which the Escrow
Agent may deem necessary or advisable in order to accomplish the purposes of
this Section 6, including to receive, endorse and collect all instruments made
payable to the Company representing any dividend, interest payment or other
distribution in respect of the Escrowed Property or any part thereof and to give
full discharge for the same. This power, being coupled with an interest, is
irrevocable.

                                    Page 6
<PAGE>

          (g) If the Company fails to perform any agreement contained in this
Section 6, the Escrow Agent may itself (but shall not be obligated to) perform,
or cause performance of, such agreement, and the expenses of the Escrow Agent
incurred in connection therewith shall be payable by the Company under Section
7.

          (h) Upon the release of any Escrowed Property to or upon the order of
the Company pursuant to Section 3, such Escrowed Property shall be delivered to
or upon the order of the Company, free and clear of any and all interests of the
Escrow Agent, the Trustee and the holders of the Securities.

          (i) The Company shall comply with (i) TIA ss. 314(b), relating to
Opinions of Counsel regarding the Lien of this Agreement and (ii) TIA ss.
314(d), relating to the release of Escrowed Property from the Lien of this
Agreement and Officers' Certificates or other documents regarding fair value of
the Escrowed Property, to the extent such provisions are applicable. Any
certificate or opinion required by TIA ss. 314(d) may be executed and delivered
by an Officer of the Company to the extent permitted by TIA ss. 314(d).

          7. Compensation and Indemnity. The Company shall pay to the Escrow
Agent from time to time reasonable compensation for its services. The Company
shall reimburse the Escrow Agent upon request for all reasonable out-of-pocket
expenses incurred or made by it, including costs of collection, in addition to
the compensation for its services. Such expenses shall include the reasonable
compensation and expenses, disbursements and advances of the Escrow Agent's
agents, counsel, accountants and experts. The Company shall indemnify the Escrow
Agent and hold it harmless from and against any and all damages, suits, actions,
loss, liability or expense (including reasonable attorneys' fees) incurred by it
in connection with the administration of this Agreement and the performance of
its duties hereunder, including adequate advances against costs that may be
incurred by it. The Escrow Agent shall notify the Company promptly of any claim
for which it may seek indemnity. Failure by the Escrow Agent to so notify the
Company shall not relieve the Company of its obligations hereunder. The Company
shall defend the claim and the Escrow Agent may have separate counsel and the
Company shall pay the reasonable fees and expenses of such counsel. The Company
need not reimburse any expense or indemnify against any loss, liability or
expense incurred by the Escrow Agent through the Escrow Agent's own wilful
misconduct, negligence or bad faith. The indemnification provisions of this
Section 7 shall survive the termination of this Agreement.

          To secure the Company's payment obligations in this Section, the
Escrow Agent shall have a security interest in the Escrowed Property pursuant to
Section 6.

          8. Modifications, Waivers and Amendments. The Escrow Agent shall not
be bound by any modification, amendment, termination (except as provided in
Section 11 hereof), cancelation, rescission or supercession of this Agreement
unless the same shall be in writing and signed by the parties hereto, and, if
its rights, duties, immunities or indemnities as Escrow Agent are affected
thereby, unless it shall have given its prior written consent thereto. This
Agreement may not be modified or amended or terminated (except as provided in
Section 11 hereof) without the prior written consent of holders of all the Notes
(except as permitted without such consent pursuant to the Indenture).

          9. Concerning the Escrow Agent. (a) The Escrow Agent shall exercise
the same degree of care toward the Escrowed Property as it exercises toward its
own similar property and shall not be held to any higher standard of care under
this Agreement, nor be deemed to owe any fiduciary duty to the Company.

          (b) The Escrow Agent may act upon any instrument or other writing
believed by it in good faith to be genuine and to have been signed or presented
by the proper person, and shall not be liable to any party hereto in connection

                                    Page 7
<PAGE>

with the performance of its duties hereunder, except for its own negligence,
wilful misconduct or bad faith. The duties of the Escrow Agent shall be
determined only with reference to this Agreement and applicable laws, and the
Escrow Agent is not charged with any knowledge of or any duties or
responsibilities in connection with any other document or agreement. If in doubt
as to its duties and responsibilities hereunder, the Escrow Agent may consult
with counsel of its choice and shall be protected in any action taken or omitted
in good faith in connection with the advice or opinion of such counsel.

          (c) The Escrow Agent may execute any of its powers or responsibilities
hereunder and exercise any rights hereunder either directly or by or through its
agents or attorneys.

          (d) Nothing in this Agreement shall be deemed to impose upon the
Escrow Agent any duty to qualify to do business or to act as agent or otherwise
in any jurisdiction other than the State of Maryland.

          (e) The Escrow Agent shall not be responsible for and shall not be
under a duty to examine into or pass upon the validity, binding effect,
execution or sufficiency of this Agreement, any agreement amendatory or
supplemental hereto or of any certificates delivered to it hereunder.

          (f) The Escrow Agent makes no representation as to the validity,
value, genuineness or collectability of any security or other document or
instrument held by or delivered to it.

          (g) The Escrow Agent shall not be called upon to advise any party as
to selling or retaining, or taking or refraining from taking any action with
respect to, any securities or other property deposited hereunder.

          (h) The Escrow Agent shall have the right at any time to resign
hereunder by giving written notice of its resignation to the Company at the
address set forth herein or at such other address as the Company shall provide,
at least 60 days prior to the date specified for such resignation to take
effect. Upon the effective date of such resignation, all cash and other payments
and all other property then held by the Escrow Agent hereunder shall be
delivered by it to a successor escrow agent. If no successor escrow agent is
appointed, the Escrow Agent may apply to a court of competent jurisdiction for
such appointment.

          (i) In the event that the Escrow Agent should at any time be
confronted with inconsistent claims or demands to the Escrowed Property, the
Escrow Agent shall have the right, but not the duty, to interplead the parties
in any court of competent jurisdiction and request that such court determine the
respective rights of the parties with respect to the Escrowed Property. In the
event the Escrow Agent no longer holds any Escrowed Property, it shall be
released from any obligation or liability as a consequence of any such claims or
demands.

          10. Notices. All notices required to be given hereunder shall be in
writing and shall be deemed given when received at the following addresses until
such time as the parties hereto designate a different or additional address or
addresses:

          To the Company:

               Ultrapetrol (Bahamas) Limited
               c/o H&J Corporate Services Ltd.
               Shirlaw House
               87 Shirley Street
               P.O. Box SS-19084
               Nassau, Bahamas

                                    Page 8

<PAGE>

          with a copy to:

               Ravenscroft Shipping Inc.
               3251 Ponce de Leon Blvd.
               Coral Gables, FL 33134

               Attention of: Leonard Hoskinson

          To the Escrow Agent:

               Manufacturers and Traders Trust Company
               Corporate Trust Administration
               25 South Charles Street
               Baltimore, MD 21201

               Attention of: Robert D. Brown

               Facsimile: 410-244-4236

          11. Miscellaneous. (a) This Agreement sets forth exclusively the
duties of the Escrow Agent with respect to any and all matters pertinent hereto
and no implied duties or obligations shall be read into this Agreement against
the Escrow Agent.

          (b) This Agreement may be executed in any number of counterparts, each
of which shall be an original and all of which, when taken together, shall
constitute one agreement.

          (c) This Agreement shall terminate when all Escrowed Property has been
disbursed pursuant to Section 3, 4 or 5, or if the Securities and the other
Obligations shall be repaid in full or the Company has exercised either its
covenant defeasance or legal defeasance option in accordance with the terms of
the Indenture and thereafter the Escrow Agent shall have no further obligation
or liability hereunder.

          (d) This Agreement shall be governed by the laws of the State of New
York.

          (e) By the execution and delivery of this Agreement, the Company (i)
acknowledges that it has, by separate written instrument, irrevocably designated
and appointed CT Corporation System (and any successor entity), as its
authorized agent upon which process may be served in any suit or proceeding
arising out of or relating to this Agreement that may be instituted in any
federal or state court in the State of New York, Borough of Manhattan or brought
by the Escrow Agent (whether in its individual capacity or in its capacity as
Escrow Agent under this Agreement), and acknowledges that CT Corporation System
has accepted such designation, (ii) submits to the jurisdiction of any such
court in any such suit or proceeding, and (iii) agrees that service of process
upon CT Corporation System and written notice of said service to the Company
shall be deemed in every respect effective service of process upon the Company
in any such suit or proceeding. The Company further agrees to take any and all
action, including the execution and filing of any and all such documents and
instruments, as may be necessary to continue such designation and appointment of
CT Corporation System in full force and effect so long as this Agreement shall
be in full force and effect.

                                    Page 9
<PAGE>

          IN WITNESS WHEREOF, the parties have duly executed this Agreement as
of the date first written above.

                                        ULTRAPETROL (BAHAMAS) LIMITED

                                        By: /s/ Leonard J. Hoskinson
                                            ------------------------
                                        Name: Leonard J. Hoskinson
                                        Title: Secretary

                                        MANUFACTURERS AND TRADERS TRUST
                                        COMPANY, as Escrow Agent,

                                        By: /s/ Robert D. Brown
                                            -------------------
                                        Name: Robert D. Brown
                                        Title: Vice President

                                    Page 10
<PAGE>

                                                                    EXHIBIT A to
                                                                Escrow Agreement

                          [Form of Release Certificate]

Manufacturers and Traders Trust Company
Corporate Trust Administration
25 South Charles Street
Baltimore, MD 21201

Attention of Robert D. Brown

                                                                          [Date]

                           Ultrapetrol (Bahamas) Ltd.
                           Escrow and Pledge Agreement
                               Release Certificate

Dear Sirs:

          Reference is made to that Escrow and Pledge Agreement, dated as of
November 24, 2004 between you, as Escrow Agent, and the undersigned (the "Escrow
Agreement"). Capitalized terms used but not defined herein shall have the
meanings assigned thereto in the Escrow Agreement or the Indenture, as the case
may be.

          As of the date hereof, to the knowledge of the undersigned, no Default
or Event of Default under the Indenture dated as of November 24, 2004 has
occurred and is continuing. The undersigned hereby requests that Escrowed
Property in an amount equal to $__________ (the "Requested Amount") be released
to the undersigned (or pursuant to the undersigned's further written
instructions) on [ ], which date is not less than 5 days after the date hereof.

          "Release Request 1":

          [This Release Request is being made in connection with the execution
of an Acquisition Contract to acquire a Vessel or Vessels and (i) such
Acquisition Contract has been signed by the applicable seller, is in full force
and effect as of the date of the Release Certificate and the signers of the
Release Certificate are not aware of any default thereunder by the Company or
the applicable seller, (ii) the Requested Amount does not exceed 90.9% of the
amount required to pay a deposit to the applicable seller, or to pay other
pre-delivery expenses, in each case called for by the Acquisition Contract, and
(iii) the balance of the cash needed to pay such deposit will come from one or
more sources other than from the Incurrence of Indebtedness or the proceeds of
an Asset Sale.]

                                    Page 11
<PAGE>

          "Release Request 2":

          [This Release Request is being made in connection with the acquisition
of a Vessel or Vessels pursuant to an Acquisition Contract and release of
Requested Amount, and (i) the Requested Amount made pursuant to any Release
Request 2 together with any amounts previously released pursuant to any Release
Request 1 with respect to the acquisition of such Vessel or Vessels does not
exceed 90.9% of the sum of the amounts payable to the applicable seller pursuant
to the Acquisition Contract plus the related transaction costs incurred by the
Company, including the reasonable fees and expenses of counsel, (ii) the Vessel
or Vessels proposed to be acquired pursuant to the Acquisition Contract will
have an Appraised Value, as of a date not more than 30 days prior to the
acquisition date of such Vessel or Vessels, of at least 110% of the aggregate
amount of Escrowed Proceeds used (pursuant to all Release Requests (as defined
below) made in respect of such Vessel or Vessels) to acquire or repair such
Vessel or Vessels, and (iii) the balance of the cash needed to acquire and
repair such Vessel or Vessels will come from one or more sources other than the
Incurrence of Indebtedness or the proceeds of an Asset Sale.]

          "Release Request 3":

          [This Release Request is being in connection with, or within six
months after, the acquisition of a Vessel by the Company with Escrowed Proceeds,
(i) the Company has undertaken or is undertaking necessary maintenance, repair
(including structural modifications) or drydocking expenses, including survey
expenses, relating to such Vessel, (ii) the Requested Amount does not exceed
90.9% of the amount of such expenses, and (iii) the balance of the cash needed
to perform such maintenance and repair such Vessel or Vessels will come from one
or more sources other than the Incurrence of Indebtedness or the proceeds of an
Asset Sale.]

          The Release Request 1, Release Request 2 and Release Request 3 are
collectively referred to as the "Release Requests".

                                        Very truly yours,

                                        ULTRAPETROL (BAHAMAS) LIMITED,

                                        by

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

                                        by

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

                                    Page 12
<PAGE>

                                                                    EXHIBIT B to
                                                                Escrow Agreement

                          Form of Officers' Certificate
                                for Release Date

          This certificate is being delivered pursuant to Section 3(a) of the
Escrow and Pledge Agreement dated as of November 24, 2004 (the "Escrow
Agreement"), between Ultrapetrol (Bahamas) Limited (the "Company") and
Manufacturers and Traders Trust Company, as Escrow Agent (the "Escrow Agent").
Capitalized terms used but not defined herein have the meanings given such terms
in the Escrow Agreement or the Indenture, as the case may be. The Company hereby
certifies through the undersigned officers that:

          1.   [The Company and the applicable seller have executed the
               following Acquisition Contracts or other sale and purchase
               contracts to acquire an additional Vessel(s):

               Ship Name:
               Seller:
               Deposit Amount:
               Purchase Price:
               Appraised Value:]

               [The Company has undertaken or is undertaking [necessary
               maintenance, repair or drydocking expenses relating to an
               additional Vessel]:

               Ship Name:
               Cost of [Maintenance][Conversion]:

               [The Company is required to pay [a deposit] [pre-delivery
               expenses] called for by the Acquisition Contract]:

               Ship Name:
               Cost of [Deposit]
               [Pre-Delivery Expenses]:

          2.   All conditions precedent in the Escrow Agreement for the release
               of Escrowed Property on the Release Date have been satisfied or
               will be satisfied concurrently with the release of the Escrowed
               Property described below in paragraph 7.

          3.   The Company, or a Wholly Owned Subsidiary that is a Subsidiary
               Guarantor of either of them as the case may be, is the record and
               beneficial owner of the Pledged Shares, free and clear of any
               Lien, except for the Lien created by the Indenture.

          4.   The Company directs that the following amounts be released from
               the Escrow Account to the following parties by wire transfer as
               provided below or, if no wire transfer instructions are provided,
               by check to the parties indicated (any amounts described below to
               be paid to the undersigned represent reimbursements of amounts
               previously paid by the undersigned in satisfaction of deposit
               amounts payable to the applicable seller(s) in respect of one or
               more Acquisition Contracts listed in paragraph 1 above):

<TABLE>
<CAPTION>
Name                      Amount             Wire Instructions
----                      ------             -----------------
<S>                       <C>                <C>
</TABLE>

          IN WITNESS WHEREOF, Ultrapetrol (Bahamas) Limited, through the
undersigned officers, has signed this Certificate this day of , .

                                        ULTRAPETROL (BAHAMAS) LIMITED,

                                        by

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

                                        by

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

                                    Page 13
<PAGE>

                                                                       EXHIBIT C

                             [INTENTIONALLY OMITTED]

                                    Page 14
<PAGE>

                                                                    EXHIBIT D to
                                                                Escrow Agreement

                         [Forms of Security Agreements]

                       [To be provided by Seward & Kissel]

                                    Page 15
<PAGE>

                                                                    EXHIBIT E to
                                                                Escrow Agreement

                           Form of Opinion of Counsel

          This opinion is being delivered pursuant to Section 3(a) of the Escrow
and Pledge Agreement dated as of November 24, 2004 (the "Escrow Agreement"),
between Ultrapetrol (Bahamas) Limited (the "Company") and Manufacturers and
Traders Trust Company, as Escrow Agent (the "Escrow Agent"). Capitalized terms
used but not defined herein have the meanings given such terms in the Escrow
Agreement or the Indenture, as the case may be. We are of opinion that:

          1. All conditions precedent in the Escrow Agreement to the release of
     Escrowed Property on the date hereof have been satisfied in all material
     respects or will be satisfied in all material respects immediately after
     the release of the Escrowed Property as described in the Officers'
     Certificate delivered pursuant to Section 3(a) of the Escrow Agreement.

          2. [If this opinion is being delivered in respect of a new Subsidiary
     Guarantor, add--] The Guarantee Agreement constitutes a valid and legally
     binding obligation of the Guarantor party thereto, enforceable against such
     Guarantor in accordance with its terms, subject to bankruptcy, insolvency,
     fraudulent transfer, reorganization, moratorium and similar laws of general
     applicability relating to or affecting creditors' rights and to general
     equity principles.

          3. The applicable Subsidiary Guarantor is a corporation validly
     existing and in good standing under the laws of [ ], and has all requisite
     corporate and legal right, power and authority to own its vessel and to
     transact the business it purports to transact. The applicable Subsidiary
     Guarantor has all requisite corporate and legal right, power and authority
     to execute and deliver the Security Agreements, Charters and the Guarantee
     Agreement, if applicable, to which it is a party and to consummate the
     transactions contemplated thereby and to perform its obligations
     thereunder.

          4. Neither the execution and delivery and performance of the Security
     Agreements relating to each additional Vessel, which Security Agreements,
     if required by applicable law in order to perfect the security interests
     therein created, are in appropriate form for recording or registration in
     the appropriate governmental offices, will not result in a breach or

                                    Page 16
<PAGE>

     violation of any of the terms and provisions of, or constitute a default
     under, any statute, rule, regulation or order of any New York or Federal
     governmental agency or body or any court having jurisdiction over the
     Company or any Subsidiary of the Company or any of their respective
     properties, or to our knowledge, or any agreement or instrument to which
     the Company or any such subsidiary is a party or by which the Company or
     any such subsidiary is bound or to which any of the properties of the
     Company or any such subsidiary is subject.

          5. Neither the execution and delivery of the Security Agreements or
     Guarantee Agreement nor performance thereof nor the consummation of the
     transactions contemplated thereby will result in any violation of or be in
     conflict with or constitute a default under any term or provision of (i)
     the Articles of Incorporation or By-laws of the applicable Subsidiary
     Guarantor or (ii)(a) to our knowledge, any term or provision of any
     agreement, indenture, mortgage instrument or license that is material to
     the applicable Subsidiary Guarantor or (b) any statute, law, governmental
     rule, regulation or ordinance or order of any court, arbitrator or
     governmental authority and, in the case of each (a) and (b), applicable to
     it or its properties or assets, or result in the creation of (or impose any
     obligation on the applicable Subsidiary Guarantor to create) any Lien
     (other than the Lien of the Indenture and the Lien of the applicable
     mortgage) upon any of the properties or assets of the applicable Subsidiary
     Guarantor pursuant to any such term or provision.

          6. The applicable Subsidiary Guarantor has, by all necessary corporate
     and shareholder action, duly authorized the execution and delivery of, and
     the performance of its obligations under each of the Security Agreements
     relating to each additional Vessel to which the Company or a Subsidiary
     Guarantor is a party, each Guarantee Agreement, if applicable, and each
     Charter to which a Subsidiary Guarantor is a party.

          7. Subject to the consummation of the transactions herein described
     the applicable Subsidiary Guarantor has title of record to the additional
     Vessel free and clear of any Liens (as defined in the Indenture) of record,
     except for the lien of the related Mortgage and Permitted Liens.

          8. The Guarantee Agreement has been duly authorized, executed and
     delivered by the applicable Subsidiary Guarantor.

          9. All filing, registration and recording fees required in connection
     with any Security Agreement relating to each additional Vessel or other
     fees necessary to assure the validity, effectiveness and priority of any
     liens, charges and encumbrances created thereby have been paid.

          10. No authorization, consent, license, permission, permit or approval
     (including exchange control approval) of or action by, and no notice to or
     filing with, any governmental authority or regulatory body is required for
     the execution, delivery and performance of any of the Security Agreements
     or the Guarantee Agreements by the respective parties thereto and no such
     authorization, consent, license, permission, permit, approval, action,
     notice or filing is required for the exercise by the Trustee of the rights
     and remedies granted to it under any of the Security Agreements, except for
     the filing and registration of the Mortgages in the office of the
     applicable flag jurisdiction.

          11. Upon the recording of the Mortgages in the office of the
     applicable flag jurisdiction, each Mortgage will create of record the first
     priority mortgage lien covering the related Mortgaged Vessel which it
     purports to create [subject to standard or customary qualifications].

          12. The security interests created by each Security Agreement (other
     than the Mortgages) do not require any action to be taken under or pursuant

                                    Page 17
<PAGE>

     to the laws of the appropriate flag jurisdiction in order to create or
     perfect such security interests or to permit the Trustee to enforce its
     rights under the Security Agreements creating the same.

          13. The choice of New York law to govern the Security Agreements and
     Guarantee Agreement constitutes a valid choice of law. The submission by
     the applicable Subsidiary Guarantor to the non-exclusive jurisdiction of
     any Federal or state court in the Borough of Manhattan, The City of New
     York (a "New York Court") is a valid submission insofar as the appropriate
     law is concerned, provided that CT Corporation System has accepted its
     appointment by the applicable Subsidiary Guarantor as its agent to accept
     service of process in the United States of America.

          14. Neither the applicable Subsidiary Guarantor nor any of its
     property have any immunity from the jurisdiction of any court or from any
     legal process (whether through service or notice, attachment prior to
     judgment, attachment in aid of execution, execution or otherwise).

          15. To our knowledge there are no legal or governmental actions, suits
     or proceedings now pending or threatened against the applicable Subsidiary
     Guarantor, or to which any of the properties of the applicable Subsidiary
     Guarantor all subject, except actions, suits and proceedings of the
     character normally incident to the business conducted by the applicable
     Subsidiary Guarantor (none of which calls into question the validity or
     legality of the Security Agreements or Guarantee Agreement or any action
     taken or to be taken pursuant thereto).

          16. In a suit on the events before a court of the jurisdiction of the
     applicable Subsidiary Guarantor, such court will respect and enforce the
     agreement of the parties as to judgment currency.

          17. No stamp or registration or similar taxes, duties, imposts or
     other charge are payable in respect of enforcement of the Security
     Agreements or Guarantee Agreement.

                                    Page 18
<PAGE>

                                                                    EXHIBIT F to
                                                                Escrow Agreement

                           Form of Guarantee Agreement

                    [____] SUPPLEMENTAL INDENTURE (this "Supplemental
               Indenture") dated as of ________, __, among ULTRAPETROL (BAHAMAS)
               LIMITED, a Bahamas corporation (the "Company"), the guarantors
               listed on the signature pages hereto (the "Guarantors"), and
               MANUFACTURERS AND TRADERS TRUST COMPANY, a New York banking
               corporation (the "Trustee"), to the INDENTURE (the "Indenture")
               dated as of November 24, 2004 among the Company, the Pledgors,
               the guarantors named therein (the "Subsidiary Guarantors"), and
               the Trustee.

          WHEREAS, Sections 9.01(4), (5) and (8) of the Indenture provide that
without the consent of any Securityholder, the Company, the Pledgors, the
Subsidiary Guarantors and the Trustee may amend the Indenture to provide
additional security for and to add additional Guarantees with respect to the
Securities, including Subsidiary Guarantees, or to make any change that does not
adversely affect the rights of any Securityholder;

          WHEREAS, Section 4.12 of the Indenture requires the Company to cause
[____] to become a Subsidiary Guarantor, and [____] is hereby agreeing to become
a Subsidiary Guarantor;

                                    Page 19
<PAGE>

          WHEREAS, the entry into this Supplemental Indenture by the parties
hereto is in all respects authorized by the provisions of the Indenture; and

          WHEREAS, all things necessary to make this Supplemental Indenture a
valid agreement of the Company and the Guarantors in accordance with its terms
have been done.

          NOW, THEREFORE, and in consideration of the premises, it is mutually
covenanted and agreed, for the equal and proportionate benefit of all
Securityholders, as follows:

          SECTION 1. [NEW GUARANTOR] hereby agrees to become a Subsidiary
Guarantor under the Indenture and, together with each other Subsidiary
Guarantor, hereby unconditionally and irrevocably guarantees, jointly and
severally, to each Holder and to the Trustee and its successors and assigns (a)
the full and punctual payment of principal of and interest on the Securities
when due, whether at maturity, by acceleration, by redemption, by required
repurchase or otherwise, and all other monetary obligations of the Company and
the Subsidiary Guarantors under the Indenture and the Securities and of the
Subsidiary Guarantors under the Security Agreements and (b) the full and
punctual performance within applicable grace periods of all other obligations of
the Company and the Subsidiary Guarantors under the Indenture, the Security
Agreements and the Securities (all the foregoing being hereinafter collectively
called the "Obligations"). Each Guarantor further agrees that the Obligations
may be extended or renewed, in whole or in part, without notice or further
assent from such Guarantor and that such Guarantor will remain bound under the
Indenture notwithstanding any extension or renewal of any Obligation. The
Guarantor is subject to all the provisions of the Indenture applicable to a
Subsidiary Guarantor.

          SECTION 2. The Indenture, as supplemented and amended by this
Supplemental Indenture and all other indentures supplemental thereto, is in all
respects ratified and confirmed, and the Indenture, this Supplemental Indenture
and all indentures supplemental thereto shall be read, taken and construed as
one and the same instrument.

          SECTION 3. If any provision hereof limits, qualifies or conflicts with
another provision hereof which is required to be included in this Supplemental
Indenture by any of the provisions of the Trust Indenture Act, such required
provision shall control.

          SECTION 4. All covenants and agreements in this Supplemental Indenture
by the Subsidiary Guarantor shall bind its successors and assigns, whether so
expressed or not.

          SECTION 5. In case any provision in this Supplemental Indenture shall
be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions shall not in any way be affected or impaired
thereby.

          SECTION 6. Nothing in this Supplemental Indenture, expressed or
implied, shall give to any Person, other than the parties hereto and their
successors hereunder, and the Securityholders any benefit or any legal or
equitable right, remedy or claim under this Supplemental Indenture.

          SECTION 7. THIS SUPPLEMENTAL INDENTURE AND THE SECURITIES SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK.

          SECTION 8. All terms used in this Supplemental Indenture not otherwise
defined herein that are defined in the Indenture shall have the meanings set
forth therein.

                                    Page 20
<PAGE>

          SECTION 9. This Supplemental Indenture may be executed in any number
of counterparts, each of which shall be an original, but all of which, when
taken together, shall constitute one and the same instrument.

          SECTION 10. The recitals contained herein shall be taken as statements
of the Company, and the Trustee assumes no responsibility for their correctness.
The Trustee makes no representations as to the validity or sufficiency of the
Indenture, this Supplemental Indenture or of the Securities and shall not be
accountable for the use or application by the Company of the Securities or the
proceeds thereof.

IN WITNESS WHEREOF, the parties have caused this Supplemental Indenture to be
duly executed as of the date first written above.

                                        ULTRAPETROL (BAHAMAS) LIMITED, as
                                        principal obligor,

                                        by

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

                                        SUBSIDIARY GUARANTORS:

                                        BAYHAM INVESTMENTS S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        BALDWIN MARITIME INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        CAVALIER SHIPPING INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        CORPORACION DE NAVEGACION
                                        MUNDIAL S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        DANUBE MARITIME INC.,

                                             By:

                                    Page 21
<PAGE>

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        GENERAL VENTURES INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        imperial maritime ltd. (bahamas) inc.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        KATTEGAT SHIPPING INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        KINGLY SHIPPING LTD.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        MAJESTIC MARITIME LTD.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        MASSENA PORT S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        MONARCH SHIPPING LTD.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        NOBLE SHIPPING LTD.,

                                    Page 22
<PAGE>

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        OCEANPAR S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        OCEANVIEW MARITIME INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        PARFINA S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        PARKWOOD COMMERCIAL CORP.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        PRINCELY INTERNATIONAL FINANCE CORP.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        REGAL INTERNATIONAL INVESTMENTS S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        RIVERVIEW COMMERCIAL CORP.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        SOVEREIGN MARITIME LTD.,

                                     Page 23
<PAGE>

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        STANMORE SHIPPING INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        TIPTON MARINE INC.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        ULTRAPETROL INTERNATIONAL S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        ULTRAPETROL S.A.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

                                        UP OFFSHORE (HOLDINGS) LTD.,

                                             By:

                                             -----------------------------
                                             Name: Leonard J. Hoskinson
                                             Title: Attorney-in-Fact

539428

                                     Page 24

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