Document:

<PAGE>
                                                                    EXHIBIT 10.2

               AMENDMENT NUMBER FIVE TO AGREEMENT FOR PURCHASE AND
                    ASSIGNMENT OF FOREIGN ACCOUNTS RECEIVABLE

                  THIS AMENDMENT NUMBER FIVE TO AGREEMENT FOR PURCHASE AND
ASSIGNMENT OF FOREIGN ACCOUNTS RECEIVABLE (this "Amendment "), dated effective
as of May 24, 2002, is entered into by and among Grant Geophysical (Int'l) Inc.,
a Texas corporation ("Grant"), the entities listed on the signature pages hereof
(such entities, the "Designated Affiliates"), and Elliott Associates, L.P., a
Delaware limited partnership ("Elliott").

                  WHEREAS, Grant and Elliott are parties to that certain
Agreement for Purchase and Assignment of Foreign Accounts Receivable, dated
August 3, 2001 (as heretofore amended, supplemented or otherwise modified, the
"Agreement ");

                  WHEREAS, Grant has requested that certain provisions of the
Agreement be amended so as to provide for

                  (a) a grant of security interest to Elliott by Grant and
                      the Designated Affiliates; and

                  (b) an amendment to Article 15 of the Agreement; and

                  WHEREAS, subject to the terms and conditions set forth in this
Amendment, Grant, each Designated Affiliate and Elliott have agreed to amend the
Agreement as set forth more fully below.

                  NOW THEREFORE, in consideration of the foregoing and for other
good and valuable consideration, the receipt and adequacy of which is hereby
acknowledged, the parties hereto agree as follows:

                  1. Grant of Security Interest. Each of Grant and the
Designated Affiliates hereby grants to Elliott a security interest in all
currently existing and hereafter acquired or arising "Collateral" set forth on
the attached Exhibit A, including but not limited to all specific accounts sold,
pursuant to the Agreement, as well as all books and records pertaining to all of
the foregoing, in order to secure (i) the prompt payment of any and all
liabilities and obligations that may become due and owing by Grant and the
Designated Affiliates by reason of the Agreement, as amended hereby, and (ii)
the prompt performance by Grant and the Designated Affiliates of their
obligations hereunder and under the Agreement, as amended hereby. Each of Grant
and the Designated Affiliates hereby authorizes Elliott to file such financing
statements under the applicable UCC and agrees to execute and deliver such other
documents, and make such entries and markings in its books and records and take
all such other actions, as Elliott may request to further evidence, perfect,
preserve or protect the security interest granted to Elliott hereunder. Elliott,
at its sole discretion, shall have all rights and remedies with respect to the
lien and security interest herein granted as are provided herein or in the
Agreement, as amended hereby, the UCC and other applicable foreign law,
including the right at any time, before or after any default by Grant or any
Designated Affiliate of any of its obligations hereunder, to notify account

<PAGE>

debtors and obligors on instruments to make payment to Elliott (or its designee)
and to take control of proceeds to which Elliott is entitled, and to apply
proceeds to (in addition to other obligations of Grant and the Designated
Affiliates to Elliott) the reasonable attorneys' fees and legal expenses
incurred by Elliott in connection with the disposition of collateral or the
exercise of other rights and remedies by Elliott.

                  2. Amendment of Section 15. Captions; Final Agreement;
Counterparts; Successors and Assigns. Section 15 of the Agreement is hereby
amended and restated in its entirety to read as follows:

                  "15. Captions; Final Agreement; Counterparts; Successors and
Assigns. Captions and headings appearing herein are included solely for
convenience of reference and are not intended to affect the interpretation of
any provision of this Agreement. This Agreement represents the final agreement
between the parties hereto with respect to the subject matter hereof, and
supersedes all prior proposals, negotiations, agreements and understandings,
oral or written, related to such subject manner. This Agreement may be executed
in any number of counterparts, all of which taken together shall constitute one
and the same instrument. This Agreement may not be assigned by Grant or any
Designated Affiliate without the prior written consent of Elliott. This
Agreement may be assigned by Elliott, in whole or in part, and any foreign
accounts purchased by Elliott hereunder, together with all rights and interests
related thereto granted to Elliott hereunder, may be assigned by Elliott all
without notice to or the consent of Grant and the Designated Affiliates. This
Agreement shall be binding upon the parties hereto and their respective
successors and permitted assigns."

                  3. Survival of Representations and Warranties. All
representations and warranties made herein and in the Agreement, and all
representations, warranties and covenants relating to the Collateral under that
certain Loan and Security Agreement, dated as of May 11, 1999 and as amended,
supplemented or otherwise modified through and including the date hereof, by and
among Grant Geophysical, Inc., as borrower, the lenders named therein and
Foothill Capital Corporation, as agent, shall survive the execution and delivery
of this Amendment, and no investigation of Elliott or any closing shall affect
the representations and warranties or the right of Elliott to rely upon them.

                  4. Reference to Agreement. The Agreement, as amended hereby,
and all other Exhibits thereto, whether now or hereafter executed and delivered,
are hereby amended so that any reference to the Agreement shall mean a reference
to the Agreement, as amended by this Amendment.

                  5. Continuing Effect; No Other Amendments or Waivers. Except
as expressly amended pursuant to this Amendment, the Agreement is and shall
continue to be in full force and effect in accordance with its terms, and this
Amendment shall not constitute Elliott's consent or indicate its willingness to
consent to any other amendment, modification or waiver of the Agreement.

                  6. Costs and Expenses. Grant and the Designated Affiliates
shall pay on demand all costs and expenses incurred by Elliott in connection
with the preparation, negotiation and execution of this Amendment, including,
without limitation, the costs and fees of Elliott's

                                       A-2
<PAGE>

legal counsel, and all costs and expenses incurred by Elliott in connection with
the enforcement or preservation of any rights under the Agreement, as amended
hereby.

                  7. Severability. Any provision of this Amendment held by a
court of competent jurisdiction to be invalid or unenforceable shall not impair
or invalidate the remainder of this Amendment and the effect thereof shall be
confined to the provision so held to be invalid or unenforceable.

                  8. Successors and Assigns. This Amendment is binding upon and
shall inure to the benefit of Elliott, Grant, the Designated Affiliates and
their respective successors and assigns, except Grant and the Designated
Affiliates may not assign or transfer any of their rights or obligations
hereunder without the prior written consent of Elliott.

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

                  10. Facsimile Transmission of Signature. Any party to this
Amendment may indicate its intention to be bound by its execution and delivery
of this Amendment by its signature to the signature page hereof and the delivery
of the signature page hereof, to the other party or its representatives by
facsimile transmission or telecopy. The delivery of a party's signature on the
signature page by facsimile transmission or telecopy shall have the same force
and effect as if such party signed and delivered this Amendment in person.

                  11. Governing Law. This Amendment shall be governed by, and
construed and interpreted in accordance with, the laws of the State of New York.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       A-3
<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have caused this
Amendment to be executed and delivered by their respective duly authorized
officers as of the date first above written.

Address for Notices:                    GRANT GEOPHYSICAL (INT'L) INC.
16850 Park Row
Houston, Texas 77084
Fax: (281) 398-9996                     By: /s/ RICHARD F. MILES
                                           ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:  President & CEO

Address for Notices:                    GRANT GEOPHYSICAL, INC.
16850 Park Row
Houston, Texas  77084
Fax:  (281) 398-9996                    By: /s/ RICHARD F. MILES
                                           ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:  President & CEO

Address for Notices:                    GRANT GEOPHYSICAL CORP.
16850 Park Row
Houston, Texas 77084
Fax: (281) 398-9996                     By: /s/ RICHARD F. MILES
                                           ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:  President & CEO

Address for Notices:                    ADVANCED SEISMIC TECHNOLOGY, INC.
16850 Park Row
Houston, Texas 77084
Fax: (281) 398-9996                     By: /s/ RICHARD F. MILES
                                           ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:  President & CEO

                                       A-4
<PAGE>

Address for Notices:                    GRANT GEOPHYSICAL DO BRASIL LTDA.
Rua Senador, 75
11th Floor
Rio de Janiero, R.J., Brazil            By: /s/ RICHARD F. MILES
Fax:                                       ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:

Address for Notices:                    P.T. GRANT GEOPHYSICAL INDONESIA
Menara Duta Office Building
2nd Floor
Wing "A", J1.
H.R. Rasuna Said Kav. B-9               By: /s/ RICHARD F. MILES
Kuningan                                    -----------------------------------
Jakarta                                 Name:   Richard F. Miles
Indonesia Fax:                          Title:

Address for Notices:                    SOLID STATE GEOPHYSICAL, INC.
7309 Flint Road, S.E.
Calgary, Alberta
Canada  T2H 1G3
Fax:                                    By: /s/ RICHARD F. MILES
                                           ------------------------------------
                                        Name:   Richard F. Miles
                                        Title:

                                       A-5
<PAGE>

Address for Notices:                     Elliott Associates, L.P.
712 Fifth Avenue, 36th Floor             By: Elliott Capital Advisors, L.P.,
New York, New York  10019                    as general partner
Attn: Dan Gropper and Robert Haas        By: Braxton Associates, Inc.,
Fax:  (212) 974-2092                         as general partner

                                         By: /s/ ELLIOT GREENBERG
                                             ----------------------
                                         Name:   Elliott Greenberg
                                         Title:  Vice President

                                       A-6

<PAGE>

                                    EXHIBIT A

                  "COLLATERAL" means all right, title and interest of Grant, the
Designated Affiliates and any other Person that grants a lien in favor of
Elliott in and to each of the following:

                  (a) the Accounts,

                  (b) the Books,

                  (c) the Commercial Tort Claims,

                  (d) the Contract Rights,

                  (e) the Deposit Accounts,

                  (f) the Designated Affiliates' Books,

                  (g) the Equipment,

                  (h) the Fixtures,

                  (i) the General Intangibles, including without limitation, the
                      Data Library, the Payment Intangibles and the Software,

                  (j) the Inventory,

                  (k) the Letter-of-Credit Rights,

                  (l) the Negotiable Collateral,

                  (m) the Securities Accounts,

                  (n) any money and other assets (of every jurisdiction
                      whatsoever), and to the extent not included in the
                      foregoing, all other personal property of any kind or
                      description of Grant and the Designated Affiliates that
                      now or hereafter come into the possession, custody, or
                      control of Elliott, and

                  (o) the Proceeds and products, whether tangible or intangible,
                      of any of the foregoing, including Proceeds of insurance
                      covering any or all of the Collateral, and any and all
                      Accounts, Books, Commercial Tort Claims, Contract Rights,
                      Deposit Accounts, Designated Affiliates' Books, Documents,
                      Equipment, Fixtures, General Intangibles, Inventory,
                      Letter-of-Credit Rights, Negotiable Collateral, Securities
                      Accounts, money, and other tangible or intangible property
                      resulting from the sale, exchange, collection, or other
                      disposition of any of the foregoing, or any portion
                      thereof or interest therein, and the Proceeds thereof.

                                       A-7
<PAGE>

         "ACCOUNTS" means all "accounts," as such term is defined in the Code,
currently existing and hereafter arising, including accounts, contract rights,
and all other forms of obligations owing to Grant or its Designated Affiliates
arising out of the sale or lease of goods or the rendition of services by Grant
or its Designated Affiliates, irrespective of whether earned by performance, and
any and all credit insurance, guaranties, or security therefor, and including
"health-care-insurance receivables" (as such term is defined in the Code).

         "BOOKS" means all of the books and records of Grant, including:
ledgers; records indicating, summarizing, or evidencing Grant's properties or
assets (including the Collateral) or liabilities; all information relating to
Grant's business operations or financial condition; and all computer programs,
disk or tape files, printouts, runs, or other computer-prepared information
comprising Grant's books and records.

         "CERTIFICATED SECURITIES" means all "certificated securities," as such
term is defined in the Code, now owned or hereafter acquired by Grant and the
Designated Affiliates.

         "CHATTEL PAPER" means all "chattel paper," "electronic chattel paper"
and "tangible chattel paper," as such terms are defined in the Code, now owned
or hereafter acquired by Grant and the Designated Affiliates.

         "CODE" means the Uniform Commercial Code as the same may, from time to
time, be in effect in the State of New York; provided, that in the event that,
by reason of mandatory provisions of law, any or all of the attachment,
perfection or priority of Elliott's security interest in any Collateral is
governed by the Uniform Commercial Code as in effect in a jurisdiction other
than the State of New York, the term "Code" shall mean the Uniform Commercial
Code as in effect in such other jurisdiction for purposes of the provisions of
this Agreement relating to such attachment, perfection or priority and for
purposes of definitions related to such provisions.

         "COMMERCIAL TORT CLAIMS " means all "commercial tort claims," as such
term is defined in the Code, that have arisen in the course of Grant's and the
Designated Affiliates' businesses.

         "CONTRACT RIGHT" means any right of Grant or any Designated Affiliate
to payment under a contract for the sale or lease of goods or the rendering of
services, which right is at the time not yet earned by performance.

         "DATA LIBRARY " means the presently owned and hereafter acquired
multi-client seismic data of Grant and the Designated Affiliates, which is
marketed broadly on a non-exclusive basis to persons in the oil and gas
industry.

         "DEPOSIT ACCOUNT" means each demand, time, savings, passbook or similar
account maintained with a bank, including a nonnegotiable certificate of
deposit, whether owned by Grant or a Designated Affiliate.

         "DESIGNATED AFFILIATES' BOOKS " means all of the books and records of
each Designated Affiliate including: ledgers; records indicating, summarizing,
or evidencing such Affiliate's properties or assets (including all or any
portion of such assets pledged as the Collateral) or

                                       A-8
<PAGE>

liabilities; all information relating to such Affiliate's business operations or
financial condition; and all computer programs, disk or tape files, printouts,
runs, or other computer-prepared information comprising such Affiliate's books
and records.

         "DOCUMENTS " means all "documents," as such term is defined in the
Code, now owned or hereafter acquired by Grant and the Designated Affiliates.

         "EQUIPMENT" means all of "equipment," as such term is defined in the
Code, now owned or hereafter acquired by Grant and the Designated Affiliates,
including any and all machinery, machine tools, motors, equipment, furniture,
furnishings, fixtures, tools, parts, goods (other than consumer goods, farm
products, or Inventory), wherever located, including, (a) any interest of Grant
or such Designated Affiliate in any of the foregoing, and (b) all attachments,
accessories, accessions, replacements, substitutions, additions, and
improvements to any of the foregoing.

         "FIXTURES" means all "fixtures," as such term is defined in the Code,
now owned or hereafter acquired by Grant and the Designated Affiliates.

         "GENERAL INTANGIBLES" means all "general intangibles," as such term is
defined in the Code, now owned or hereafter acquired by Grant and the Designated
Affiliates, including Contract Rights, rights arising under common law,
statutes, or regulations, choses or things in action, goodwill, patents, trade
names, trademarks, service marks, copyrights, blueprints, drawings, purchase
orders, customer lists, monies due or recoverable from pension funds, route
lists, rights to payment and other rights under any royalty or licensing
agreements, infringement claims, computer programs, information contained on
computer disks or tapes, literature, reports, catalogs, insurance premium
rebates, tax refunds, and tax refund claims), other than Goods, Accounts, and
Negotiable Collateral.

         "GOODS " means all "goods," as such term is defined in the Code, now
owned or hereafter acquired by Grant and the Designated Affiliates.

         "INSTRUMENTS " means all "instruments," as such term is defined in the
Code, now owned or hereafter acquired by Grant and the Designated Affiliates.

         "INVENTORY " means all "inventory," as such term is defined in the
Code, now owned or hereafter acquired by Grant or any of the Designated
Affiliates and in which Grant or any of the Designated Affiliates has any
interest, including goods held for sale, lease or license or to be furnished
under a contract of service and all of Grant's and the Designated Affiliates'
present and future raw materials, work in process, finished goods, and packing
and shipping materials and proprietary seismic data, wherever located.

         "INVESTMENT PROPERTY" means all "investment property," as such term is
defined in the Code, now owned or hereafter acquired by Grant and the Designated
Affiliates.

         "LETTER-OF-CREDIT RIGHTS" means all "letter-of-credit rights," as such
term is defined in the Code, now owned or hereafter acquired by Grant and the
Designated Affiliates.

                                       A-9
<PAGE>

          "NEGOTIABLE COLLATERAL" means all of Grant's and any of the Designated
Affiliates' present and future letters of credit, notes, drafts, Instruments,
Investment Property, Security Entitlements, Certificated and Uncertificated
Securities (including the shares of stock of Subsidiaries of Grant), Documents,
personal property leases (wherein Grant or such Designated Affiliate is the
lessor), Chattel Paper, and Books and such Designated Affiliate's Books relating
to any of the foregoing.

         "PAYMENT INTANGIBLES" means all "payment intangibles," as such term is
defined in the Code, now owned or hereafter acquired by Grant and the Designated
Affiliates.

         "PROCEEDS " means all "proceeds," as such term is defined in the Code.

         "SECURITIES ACCOUNT" means a "securities account," as such term is
defined in the Code.

         "SECURITY ENTITLEMENTS" means all "security entitlements," as such term
is defined in the Code, now owned or hereafter acquired by Grant and the
Designated Affiliates.

         "SOFTWARE " means all "software," as such term is defined in the Code,
now owned or hereafter acquired by Grant and the Designated Affiliates.

         "UNCERTIFICATED SECURITIES" means all "uncertificated securities," as
such term is defined in the Code, now owned or hereafter acquired by Grant and
the Designated Affiliates.

                                      A-10<PAGE>
                                                                    EXHIBIT 10.3

                          Foothill Capital Corporation
              11111 Santa Monica Boulevard, Suite 1500 Los Angeles,
               California 90025-3333 Tel (310) 453-7261 Fax (310)
                                    453-7420

                               As of May 24, 2002

Elliott Associates, L.P. 712 Fifth
Avenue, 36th Floor New York, NY  10019
Attention: Dan Gropper Fax No.:
212-974-2092

Grant Geophysical, Inc. 16850 Park
Row Houston, TX  77084
Attention: William H. Freeman Fax No.:
281-398-9996

                  Re:  Cash Collateral Account

Ladies and Gentlemen:

         Reference is made to that certain Loan and Security Agreement (as
amended, the "Loan Agreement"), dated as of May 11, 1999, as amended, among
Grant Geophysical, Inc. ("Borrower"), Elliott Associates, L.P. ("EALP"), as a
Lender, and Foothill Capital Corporation ("Foothill"), as Agent (the "Agent")
and a Lender (and, together with EALP, the "Lenders"), pursuant to which the
Lenders agreed to extend credit to Borrower. To induce Foothill to increase the
credit available to Borrower under the Loan Agreement, EALP, Borrower, and
Foothill hereby agree as follows:

         1. Cash Collateral. To induce Foothill to make FCC Supplemental Loans
(as defined in the Loan Agreement), EALP may, in its sole and absolute
discretion, deliver to Foothill from time to time cash deposits (together with
all payments of interest thereon as provided in section 2 hereof, the "Cash
Collateral"). EALP hereby pledges, transfers and assigns to Agent, on behalf of
the Lenders, and grants to Agent, on behalf of the Lenders, as additional
security for the payment and performance of the Obligations of Borrower under
the FCC Supplemental Loan (as such terms are defined in the Loan Agreement), a
continuing security interest in and to: (i) the Cash Collateral and all of
EALP's right, title and interest therein and to all cash, property or rights
transferred to or deposited in accounts maintained with Foothill from time to
time by EALP or on behalf of EALP, as additional collateral hereunder; and (ii)
any and all proceeds of the foregoing. This pledge, assignment and grant of
security interest shall secure payment of the Obligations of Borrower under the
FCC Supplemental Loan and all other amounts payable by Borrower or EALP to Agent
arising under the FCC Supplemental Loan. EALP represents and warrants that
Agent's security interest in the Cash Collateral is a valid, first priority,
perfected security interest in the Cash Collateral and EALP has not granted a
security interest in or assigned any of its rights in the Cash Collateral to any
other person or entity. EALP agrees that if an Event of Default under the Loan
Agreement or any other Loan Document shall occur and be continuing, Agent may,
after five (5) business days' prior written notice to EALP of the occurrence of
such Event of Default, withdraw and apply all

Cash Collateral Account Agreement--Page 1

<PAGE>

collected funds from the Cash Collateral to the Obligations of Borrower under
the FCC Supplemental Loan in such order, proportion and priority as Agent may
determine in its sole discretion, without further consent of EALP or Borrower;
provided, that Agent shall not withdraw such funds from the Cash Collateral (A)
if such Event of Default is cured during the 5-Day Standstill Period (as defined
in Section 9.3(b) of the Loan Agreement) or during the Standstill Period (as
defined in Section 9.5(f) of the Loan Agreement), or (B) during the Standstill
Period if, within the 5-Day Standstill Period, EALP shall notify Agent that EALP
is exercising its Purchase Right (as defined in the Loan Agreement) in
accordance with Section 9.5 of the Loan Agreement. Agent's right to withdraw and
apply amounts in the Cash Collateral shall be in addition to all other rights
and remedies provided to Agent under the Loan Agreement and the other Loan
Documents and at law or in equity. EALP and Borrower agree that Foothill shall
be entitled to commingle the Cash Collateral with Foothill's general or other
funds and that the Cash Collateral is held as collateral for the Obligations of
Borrower under the FCC Supplemental Loan and is not held by Agent in trust for
EALP or Borrower or in a similar fiduciary capacity. Foothill shall have no
obligation to invest the Cash Collateral.

         2. Interest on Cash Collateral. Foothill agrees to pay to EALP interest
on the average daily balance of Cash Collateral at the per annum rate announced
by Wells Fargo Bank, National Association, as its 90-day certificate of deposit
rate and in effect on the date of the initial deposit hereunder (the rate to be
adjusted automatically following each increase or decrease in such rate to the
rate in effect on the first business day following each ninety-day period
thereafter), which shall be payable monthly in arrears by depositing the amount
payable into the Cash Collateral account and which amount shall then constitute
additional Cash Collateral.

         3. Release of Cash Collateral. At any time and from time to time, but
not more frequently than twice each month, to the extent that the aggregate
amount in the Cash Collateral account exceeds the sum of (i) the unpaid balance
of the FCC Supplemental Loan, plus (ii) interest to accrue on the FCC
Supplemental Loan to the first day of the next month, plus (iii) $100,000 (such
excess is hereafter called the "Excess Collateral"), EALP may request, in
writing, that a sum not less than $100,000 and not in excess of the Excess
Collateral shall be released to EALP and Agent shall, as soon as practicable
thereafter, release such sum to EALP; provided that, such release shall not be
made to the extent that Borrower has made a request for an FCC Supplemental
Loan, that has been acknowledged by Elliott (in writing), and not yet funded. In
addition, in the event that EALP purchases the Foothill Obligations (as defined
in the Loan Agreement) in accordance with Section 9.5 of the Loan Agreement,
then as soon as practicable following the execution of the Assignment and
Acceptance (as defined in the Loan Agreement), the payment of the Purchase Price
(as defined in the Loan Agreement), and delivery of any required Release
Agreements and Indemnity (as each is defined in the Loan Agreement), Agent shall
release all Cash Collateral to EALP, upon written request therefor, and transmit
all monies held in the Cash Collateral account to an account designated by EALP
to Agent, whereupon this letter agreement shall terminate and be of no further
force or effect.

         4. General. This letter agreement shall be construed under and governed
by the laws of the State of New York, and may be executed in any number of
counterparts and by different parties on separate counterparts, each of which
shall be deemed an original and all of which together shall be deemed to be one
and the same agreement. Delivery of an executed counterpart of this letter by
telefacsimile shall be equally effective as delivery of a manually executed
counterpart. No amendment hereof shall be effective without the consent of each
of Foothill, EALP and Borrower. Headings in this agreement are for convenience
of reference only and shall not be used to construe the agreement. Time is of
the essence. This letter agreement is binding upon, and inures to the benefit
of, the parties hereto, their successors and assigns.

Cash Collateral Account Agreement--Page 2

<PAGE>

                                            Very truly yours,

                                            FOOTHILL CAPITAL CORPORATION,
                                            a California corporation

                                            By: /s/ VICTOR BARWIG
                                               ------------------------------
                                            Title:  Sr. Vice President
                                                   --------------------------

Read, accepted and agreed to
as of the date first above written:

Elliott Associates, L.P.
By: Elliott Capital Advisors, L.P.,
    as general partner
By: Braxton Associates, Inc.,
    as general partner

By: /s/ ELLIOT GREENBERG
    --------------------------------
Name:   Elliot Greenberg
    --------------------------------
Title: Vice President
      ------------------------------

GRANT GEOPHYSICAL, INC.,
a Delaware corporation

By: /s/ RICHARD F. MILES
    --------------------------------
Name:   Richard F. Miles
      ------------------------------
Title:  President & CEO
       -----------------------------

Cash Collateral Account Agreement--Page 3

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