Document:

<PAGE>

                          SUBORDINATED PROMISSORY NOTE

$2,148,960.18                 Lafayette, Louisiana                  May 13, 2005

      For value received, OMNI ENERGY SERVICES CORP., a Louisiana corporation
("Borrower"), promises to pay to MANCHESTER SECURITIES CORP., a New York
corporation ("Lender"), c/o Elliott Management Corporation, at 712 Fifth Avenue,
New York, New York 10019, or at such other address as Lender shall from time to
time specify in writing, the principal sum of TWO MILLION ONE HUNDRED
FORTY-EIGHT THOUSAND NINE HUNDRED SIXTY AND 18/100 DOLLARS ($2,148,960.18), in
legal and lawful money of the United States of America, with interest on the
outstanding principal from the date advanced until paid at the rate set out
below. Interest shall be computed on a per annum basis of a year of 365 days or
366 days in a leap year, as the case may be, and for the actual number of days
elapsed.

      1. PAYMENT TERMS. Principal and interest shall be due and payable in
quarterly payments of $203,204.80 each, payable on the thirteenth day of August,
November, February, and May of each calendar year beginning August 13, 2005, and
continuing regularly and quarterly thereafter until May 13, 2008, when the
entire amount hereof, principal and interest then remaining unpaid, shall be
then due and payable; interest being calculated on the unpaid principal each day
principal is outstanding and all payments made credited to any collection costs
and late charges, to the discharge of the interest accrued and to the reduction
of the principal, in such order as Lender shall determine.

      2. INTEREST RATE. The unpaid principal balance of this Note shall bear
interest prior to maturity (however such maturity is brought about) at a fixed
rate of eight percent (8%) per annum.

      3. DEFAULT RATE. Unpaid principal and interest shall bear interest from
date due until paid at (a) the highest rate permitted by applicable law, or (b)
if no such maximum rate is established by applicable law, at the rate stated
above plus five percent (5%) per annum.

      4. PREPAYMENT.

            (a) Borrower reserves the right to prepay, prior to maturity, all or
      any part of the principal of this Note without penalty. Any prepayments
      shall be applied first to accrued interest and then to principal. Borrower
      will provide written notice to the Lender of any such prepayment of all or
      any part of the principal at the time thereof. All payments and
      prepayments of principal or

<PAGE>

      interest on this Note shall be made in lawful money of the United States
      of America in immediately available funds, at the address of Lender
      indicated above, or such other place as the Lender shall designate in
      writing to Borrower. All partial prepayments of principal shall be applied
      to the last installments payable in their inverse order of maturity.

            (b) In the event that the aggregate amount of Borrower's
      Indebtedness (as that term is defined in the Settlement Agreement and
      Mutual Release of even date herewith among Lender, Elliott Management
      Corporation, and Borrower exceeds $52,346,462 (the "Indebtedness Cap"),
      then within three (3) business days after receipt by Borrower of written
      notice from Lender of such occurrence, the Borrower shall pay, in full,
      all of the outstanding principal and accrued interest remaining on the
      Note. Borrower agrees to give prompt written notice to Lender when
      Borrower's Indebtedness exceeds the Indebtedness Cap.

      5. DEFAULT. It is expressly provided that:

            (a) upon default in the punctual payment of this Note or any part
      hereof, principal or interest, as the same shall become due and payable
      and such default continues for a period of five (5) days,

            (b) in the event of a default under the terms of any Senior Debt (as
      defined in Paragraph 8 below), which default is not cured within
      applicable time periods,

            (c) the Borrower shall default in the observance or performance in
      any material respect of any of the representations, warranties, covenants
      or agreements contained in the Settlement Agreement and Mutual Release of
      even date herewith among Borrower, Lender and Elliott Management
      Corporation, the 2005 Registration Rights Agreement of even date herewith
      among Borrower and Lender and the Voting Agreement of even date herewith
      between Lender and James C. Eckert, or

            (d) Borrower makes an assignment for the benefit of creditors, or
      becomes a party to a voluntary or involuntary proceeding under state law
      or under any chapter of the United States Bankruptcy Code and, in the case
      of an involuntary proceeding, such proceeding remains undismissed for a
      period of 60 days,

then and in any such event, the Lender may, at its option, without further
notice or demand, (i) declare the outstanding principal balance of and accrued
but unpaid interest on this Note at once due and payable, (ii) pursue any and
all other rights, remedies and

                             Promissory Note - Page 2
<PAGE>

recourses available to the Lender hereof, at law or in equity, or (iii) pursue
any combination of the foregoing; and in the event default is made in the prompt
payment of this Note when due or declared due, and the same is placed in the
hands of an attorney for collection, or suit is brought on same, or the same is
collected through probate, bankruptcy or other judicial proceedings, then the
Borrower agrees and promises to pay all costs of collection, including
reasonable attorney's fees. In the alternative, in the event that Borrower has
defaulted in any quarterly payment under this Note, and such default has not
been cured within five (5) days, Lender may elect, by notice to the Borrower and
the Escrow Agent (as defined below) to receive in the quarterly payment in
shares of stock, based upon the formula set forth in Paragraph 8 below.

      6. WAIVER. Borrower, as well as all successors and legal representatives
of said Borrower, shall be directly and primarily liable for the payment of all
indebtedness hereunder. Except as specifically provided herein, Borrower
expressly waives presentment and demand for payment, notice of default, notice
of intent to accelerate maturity, notice of acceleration of maturity, protest,
notice of protest, notice of dishonor, and all other notices and demands for
which waiver is not prohibited by law, and diligence in the collection hereof;
and agrees to all renewals, extensions, indulgences, partial payments, with or
without notice, before or after maturity. No delay or omission of Lender in
exercising any right hereunder shall be a waiver of such right or any other
right under this Note.

      7. NO USURY INTENDED; USURY SAVINGS CLAUSE. In no event shall interest
contracted for, charged or received hereunder, plus any other charges in
connection herewith which constitute interest, exceed the maximum interest
permitted by applicable law. The amounts of such interest or other charges
previously paid to the Lender in excess of the amounts permitted by applicable
law shall be applied by the Lender to reduce the principal of the indebtedness
evidenced by the Note, or, at the option of the Lender, be refunded. To the
extent permitted by applicable law, determination of the legal maximum amount of
interest shall at all times be made by amortizing, prorating, allocating and
spreading in equal parts during the period of the full stated term of the loan
and indebtedness, all interest at any time contracted for, charged or received
from the Borrower hereof in connection with the loan and indebtedness evidenced
hereby, so that the actual rate of interest on account of such indebtedness is
uniform throughout the term hereof.

      8. SUBORDINATION.

            (a) This Note shall be subordinate and junior in right of payment to
      all Senior Debt. As used in this Paragraph 8, "Senior Debt" shall mean and
      include all indebtedness, obligations and liabilities of the Borrower owed
      to (i) General

                             Promissory Note - Page 3
<PAGE>

      Electric Capital Corporation ("GECC") as described, and only to the extent
      provided, in the GECC Subordination Agreement; and (ii) Webster Business
      Credit Corporation ("Webster") as described, and only to the extent
      provided, in that certain Subordination and Intercreditor Agreement dated
      as of even date herewith, among Webster, Lender, and certain other
      creditors of Borrower.

            (b) In the event that the terms of the subordination agreements
      described in subparagraph (a) prohibit the cash payment to Lender of any
      regularly scheduled quarterly payment of principal and interest due
      hereunder as a result of a default by Borrower on the Senior Debt (other
      than a default arising from Borrower's failure to pay any amount due to
      GECC or Webster under the terms of such Senior Debt), Borrower shall be
      entitled to elect to issue shares ("Debt Service Shares") of its Common
      Stock, $.01 par value per share ("Common Stock"), to Lender in lieu of
      making such cash payment. In the event that Borrower elects to issue
      shares of Common Stock to Lender pursuant to this subparagraph (b), the
      number of shares of Common Stock to be issued shall be equal to the
      aggregate amount of the principal and interest to be paid to Lender
      divided by the applicable VWAP Formula (as defined below). In the event
      that Borrower elects to issue Debt Service Shares to Lender, Borrower
      shall notify Lender of such decision, in writing, on or before the due
      date of such payment.

            (c) For purposes of this Paragraph 8, the following terms shall have
      the meaning set forth below:

                  (i) "VWAP Formula" shall mean ("A") in the event that the
            issuance of stock, would otherwise violate Rule 4350(i) of the
            National Association of Securities Dealers, the average (the "VWAP
            Average") of the VWAP of a share of Common Stock for the five (5)
            Trading Days immediately preceding the date such payment was due to
            Lender or (B) in all other cases, ninety percent (90%) of the VWAP
            Average.

                  (ii) "Trading Day" means any day on which the Common Stock is
            purchased or sold on the principal securities exchange or market on
            which the Common Stock is then listed or traded.

                  (iii) "VWAP" on a Trading Day means the volume weighted
            average price of the Common Stock for such Trading Day as reported
            by Bloomberg Financial Markets or if Bloomberg Financial Markets has
            not been reporting such prices by a comparable reporting service of
            national reputation selected by Lender and reasonably satisfactory
            to the Borrower.

                             Promissory Note - Page 4
<PAGE>

            (d) In the event that the VWAP Formula used is the VWAP Average,
      then 10% of the amount of principal and interest to be paid to the Lender
      in the relevant paragraph shall be added to the principal balance of this
      Note.

      9. ESCROW AGREEMENTS; PAYMENT IN SHARES OF COMMON STOCK. Pursuant to the
Escrow Agreement, Lender shall make notices to the escrow agent named therein to
release certain shares of Common Stock escrowed thereunder for purposes of this
Note, for payments in stock due and payable pursuant to Paragraphs 5 and 8
above. Provided, however, that in the event that Lender shall not have received
the full amount of the applicable Common Stock payment as a result of Borrower's
failure to perform its obligations under the Escrow Agreement, Borrower shall
remain fully liable for such deficiency.

      10. NOTICES. All notices, requests, demands and other communications
required or permitted hereunder shall be in writing, and shall be deemed to be
given or delivered when actually received by the party to whom directed, or, if
earlier and regardless of whether actually received, upon deposit in a regularly
maintained receptacle for the United States mail, registered or certified,
postage fully prepaid, addressed to the party to whom directed at its address
set forth below or at such other address as such party may have previously
specified by notice actually received by the other party:

      If to Borrower:            OMNI Energy Services Corp.
                                 4500 NE Evangeline Thruway
                                 Carencro, LA  70520
                                 Attention:  G. Darcy Klug

      If to Lender:              Manchester Securities Corp.
                                 c/o Elliott Management Corporation
                                 712 Fifth Avenue
                                 New York, New York 10019
                                 Attention: Sundar Srinivasan

      11. GOVERNING LAW, VENUE. This Note is being executed and delivered, and
is intended to be performed in the State of New York. Except to the extent that
the laws of the United States may apply to the terms hereof, the substantive
laws of the State of New York shall govern the validity, construction,
enforcement and interpretation of this Note.

                             Promissory Note - Page 5
<PAGE>

      12. CAPTIONS. The captions in this Note are inserted for convenience only
and are not to be used to limit the terms herein.

                                         BORROWER:
                                         OMNI ENERGY SERVICES CORP.

                                         By: /s/ G. Darcy Klug
                                            -----------------------------------
                                             Name: G. Darcy Klug
                                             Title: Executive Vice President

THIS NOTE AND THE INDEBTEDNESS EVIDENCED HEREBY ARE SUBORDINATED IN THE MANNER
AND TO THE EXTENT SET FORTH IN THOSE CERTAIN SUBORDINATION AND INTERCREDITOR
AGREEMENTS (THE "SUBORDINATION AGREEMENTS") DATED AS OF MAY 13, 2005, AMONG THE
"SUBORDINATED CREDITORS" DEFINED AND DESCRIBED THEREIN ("SUBORDINATED
CREDITORS") AND GENERAL ELECTRIC CAPITAL CORPORATION, NOT INDIVIDUALLY, BUT AS
AGENT FOR ITSELF AND CERTAIN OTHER FINANCIAL INSTITUTIONS IDENTIFIED THEREIN,
AND WEBSTER BUSINESS CREDIT CORPORATION, RESPECTIVELY, AS SUCH SUBORDINATION
AGREEMENTS MAY BE AMENDED, SUPPLEMENTED, MODIFIED, REPLACED OR REFINANCED.

                             Promissory Note - Page 6<PAGE>

                          SURRENDER OF NOTES AGREEMENT

      This Surrender of Notes Agreement ("Agreement") is entered into as of May
18, 2005, by and between:

      (a)   Trussco, Inc. ("Trussco"), appearing through its undersigned
            authority, James C. Eckert;

      (b)   Trussco Properties, LLC ("Trussco Properties"), appearing through
            its undersigned authority, James C. Eckert;

      (c)   OMNI Energy Services Corp. ("OMNI"), appearing through its
            undersigned authority, James C. Eckert;

      (d)   Larry Becker, et ux, (as used herein "Becker" shall refer to Larry
            Becker and his wife);

      (e)   Craig Hargrave, et ux (as used herein "Hargrave" shall refer to
            Craig Hargrave and his wife);

      (f)   N. R. Broussard, et ux (as used herein "N. R. Broussard" shall refer
            to N. R. Broussard and his wife );

      (g)   Danny P. Broussard, et ux (as used herein "Danny Broussard" shall
            refer to Danny P. Broussard and his wife); and

      (h)   OMNI Properties Corp., appearing through its undersigned authority,
            James C. Eckert.

                                   WITNESSETH:

      WHEREAS, on or about the 30th day of June, 2004, Trussco, Trussco
Properties, and the shareholders and membership interest holders of both,
entered into a Non-Employee Shareholder Stock Purchase and Sale Agreement and an
Employee Shareholder Stock Purchase and Sale Agreement (the "Agreements")
whereby 100% of the interest owned by N. R. Broussard, Danny P. Broussard and
Larry Becker (non-employees) and Craig Hargrave, Karl Comeaux and Edward Laborde
(employees) in both Trussco and Trussco Properties was transferred to OMNI; and

      WHEREAS, OMNI issued and delivered to the employees a promissory note
dated June 30, 2004 in the original principal amount of $1,500,000.00 bearing
interest at the rate of five (5%) percent per annum and having a term of
thirty-six (36) months ("Seller Note No. 1"); and

      WHEREAS, OMNI issued and delivered to the employees a promissory note
dated June 30, 2004 in the original principal amount of the lesser of: (i)
$3,000,000.00 or (ii) the product of

<PAGE>

3.12 times the average annual EBITDA for the thirty-six (36) month period ending
December 31, 2006, less the sum of $9,000,000.00 and the amount of bank and
shareholder debt of Trussco on June 30, 2004, bearing interest at the rate of
five (5%) percent per annum and having a term of thirty-six (36) months ("Seller
Note No. 2"); and

      WHEREAS, OMNI issued and delivered to the non-employees a promissory note
dated June 30, 2004 in the original principal amount of $1,500,000.00 bearing
interest at the rate of five (5%) percent per annum and having a term of
thirty-six (36) months ("Seller Note No. 3"); and

      WHEREAS, General Electric Capital Corporation ("GECC") and OMNI are
entering into a Credit Agreement of even date herewith pursuant to which GECC
would provide to OMNI a $50 Million facility that would enable OMNI to
restructure its debt;

      NOW THEREFORE, for the purpose of aiding OMNI in restructuring its overall
debt, with GECC (the "GECC Transaction"), Becker, Hargrave, N. R. Broussard and
Danny Broussard appear herein along with OMNI, Trussco and Trussco Properties
and execute this Agreement and agree as follows:

      A. Becker. Contemporaneously with the execution of this Agreement, Becker
shall execute and deliver a Subordination Agreement in favor of GECC and a
Subordination Agreement in favor of Webster Business Credit Corporation
("WBCC"). Becker acknowledges and agrees that contemporaneously with the
execution of this Agreement, Seller Note No. 3 shall be delivered to OMNI and
marked "Paid in Full" in exchange for OMNI's obligations set forth below. Becker
hereby irrevocably agrees that his 1/3 interest in Seller Note No. 3 is
irrevocably paid and satisfied in full in exchange for the obligations of OMNI
set forth below. In consideration of the delivery and surrender of the Seller
Note No. 3 and the execution of the subordination agreements referenced above,
OMNI agrees as follows:

            (1)   OMNI agrees to pay Becker the amount of $250,000 in cash by
                  wire transfer to the account designated by Becker within 90
                  days of closing the GECC Transaction;

            (2)   Within 10 business days of closing the GECC Transaction, OMNI
                  shall issue to Becker, 50,000 shares of its fully paid and
                  non-assessable, $.01 par value common shares ("Common
                  Shares").

      B. Hargrave Contemporaneously with the execution of this Agreement,
Hargrave shall execute and deliver a Subordination Agreement in favor of GECC
and a Subordination Agreement in favor of Webster Business Credit Corporation
("WBCC"). For and in consideration of Omni's obligations set forth below,
Hargrave hereby transfers and assigns to Omni Properties Corp. all of his right,
title and interest (which he represents is a 1/3 interest) in and to Seller Note
No. 1 and Seller Note No. 2. Hargrave hereby irrevocably agrees that he accepts
the obligations of Omni set forth below as irrevocable payment in full for the
transfer to

<PAGE>

Omni Properties Corp. of his 1/3 interest in Seller Note No. 1 and Seller Note
No. 2 and irrevocably releases and relinquishes unto Omni Properties Corp. all
his interests in Seller Note No. 1 and Seller Note No. 2. In consideration of
the transfer and assignment by Hargrave of his 1/3 interest in Seller Note No. 1
and Seller Note No. 2 to Omni Properties Corp., a wholly owned subsidiary of
OMNI, and Hargrave's execution and delivery of the subordination agreements
referenced above, OMNI agrees as follows:

            (1)   OMNI shall pay to Hargrave the amount of $250,000 in cash by
                  wire transfer to the account designated by Hargrave within 90
                  days of Closing the GECC Transaction;

            (2)   Within 10 business days of Closing the GECC Transaction, OMNI
                  shall issue to Hargrave, 50,000 shares of its Common Shares.

      C. N. R. Broussard. Contemporaneously with the execution of this
Agreement, N.R. Broussard shall execute and deliver a Subordination Agreement in
favor of GECC and a Subordination Agreement in favor of Webster Business Credit
Corporation ("WBCC"). N. R. Broussard acknowledges and agrees that
contemporaneously with the execution of this Agreement, Seller Note No. 3 shall
be delivered to OMNI and marked "Paid in Full" in exchange for OMNI's
obligations set forth below. N.R. Broussard hereby irrevocably agrees that his
1/3 interest in Seller Note No. 3 is irrevocably paid and satisfied in full in
exchange for the obligations of OMNI set forth below. In consideration of the
delivery and surrender of the Seller Note No. 3 and the execution of the
subordination agreements referenced above, OMNI agrees as follows:

            (1)   OMNI shall pay to N. R. Broussard the amount of $250,000 in
                  cash by wire transfer to the account designated by N. R.
                  Broussard within 90 days of closing the GECC Transaction;

            (2)   Within 10 business days of closing GECC Transaction, OMNI
                  shall issue to N. R. Broussard, 50,000 shares of its Common
                  Shares.

      D. Danny Broussard. Contemporaneously with the execution of this
Agreement, Danny Broussard shall execute and deliver a Subordination Agreement
in favor of GECC and a Subordination Agreement in favor of Webster Business
Credit Corporation ("WBCC"). Danny Broussard acknowledges and agrees that
contemporaneously with the execution of this Agreement, Seller Note No. 3 shall
be delivered to OMNI and marked "Paid in Full" in exchange for OMNI's
obligations set forth below. Danny Broussard hereby irrevocably agrees that his
1/3 interest in Seller Note No. 3 is irrevocably paid and satisfied in full in
exchange for the obligations of OMNI set forth below. In consideration of the
delivery and surrender of the Seller Note No. 3 and the execution of the
subordination agreements referenced above, OMNI agrees as follows:

<PAGE>

            (1)   OMNI shall pay to Danny Broussard the amount of $250,000 in
                  cash by wire transfer to the account designated by Danny
                  Broussard within 90 days of closing the GECC Transaction;

            (2)   Within 10 business days of closing the GECC Transaction, OMNI
                  shall issue to Danny Broussard, 50,000 shares of its Common
                  Shares.

      E. Securities Act Representations, Warranties and Understandings. Becker,
Hargrave, N. R. Broussard and Danny Broussard hereby make the following
representations and warranties to OMNI:

            (1)   Accredited Investor. Becker, Hargrave, N. R. Broussard and
                  Danny Broussard represent and warrant that they are each an
                  accredited investor as that term is defined in Rule 501 of
                  Regulation D, and are acquiring the Common Shares solely for
                  their own account as a principal and not with a present view
                  to the public resale or distribution of all or any part
                  thereof, except pursuant to sales that are exempt from the
                  registration requirement of the Securities Act and/or sales
                  registered under the Securities Act; provided, however that in
                  making such representation, neither agrees to hold the Common
                  Shares for any minimum or specific term and reserves the right
                  to sell, transfer or otherwise dispose of the Common Shares at
                  any time in accordance with Federal and state securities laws
                  applicable to such sale, transfer or disposition. Each has the
                  knowledge and experience in business and financial matters so
                  as to enable it to understand the risks of and form an
                  investment decision with respect to its investment in Common
                  Shares.

            (2)   Information. OMNI has made available to Becker, Hargrave, N.
                  R. Broussard and Danny Broussard and their advisors and
                  representatives, if any, information regarding the business,
                  operations and financial condition of OMNI, and has granted to
                  each the opportunity to ask questions of and receive answers
                  from representatives of OMNI, its officers, directors,
                  employees and agents concerning the Company. OMNI answered all
                  of the questions asked by each, their advisors and
                  representatives.

            (3)   Limitations on Disposition. Becker, Hargrave, N. R. Broussard
                  and Danny Broussard acknowledge that the Common Shares have
                  not been and are not currently being registered under the
                  Securities Act and may not be transferred or resold without
                  registration under the Securities Act or unless pursuant to an
                  exemption therefrom.

            (4)   Legend. Becker, Hargrave, N. R. Broussard and Danny Broussard
                  understand that the certificates representing the Common
                  Shares except as

<PAGE>

                  set forth below, shall bear at issuance a restrictive legend
                  in substantially the following form:

                        "The securities represented by this certificate have not
                        been registered under the Securities Act of 1933, as
                        amended (the "Securities Act"), or the securities laws
                        of any state, and may not be offered for sale, sold,
                        transferred or assigned unless a registration statement
                        under the Securities Act and applicable state securities
                        laws shall have become effective with regard thereto, or
                        an exemption from registration under the Securities Act
                        and applicable state securities laws is available in
                        connection with such offer or sale."

                  Notwithstanding the foregoing, it is agreed that, as long as
                  (A) the resale or transfer (including without limitation a
                  pledge) of any of the Common Shares is registered pursuant to
                  an effective registration statement, (B) such Common Shares
                  have been sold pursuant to Rule 144 under the Securities Act
                  or any successor provision ("Rule 144"), subject to receipt by
                  OMNI of customary documentation in connection therewith, or
                  (C) such Common Shares are eligible for resale under Rule
                  144(k) or any successor provision, such Common Shares shall be
                  issued without any legend or other restrictive language and,
                  with respect to Common Shares upon which such legend is
                  stamped, OMNI shall issue new certificates with such legend to
                  the holder upon request.

            (5)   Reliance on Exemptions. Becker, Hargrave, N. R. Broussard and
                  Danny Broussard understand that the Common Shares are being
                  offered and sold to it in reliance upon specific exemptions
                  from the registration requirements of United States federal
                  and state securities laws and that OMNI is relying upon the
                  truth and accuracy of the representations and warranties of
                  Becker, Hargrave, N. R. Broussard and Danny Broussard set
                  forth herein in order to determine the availability of such
                  exemptions and the eligibility of Becker, Hargrave, N. R.
                  Broussard and Danny Broussard to acquire the Common Shares.

            (6)   Non-Affiliate Status; Common Stock Ownership. Neither Becker,
                  Hargrave, N. R. Broussard and Danny Broussard is an Affiliate
                  of OMNI. Becker's, Hargrave's, N. R. Broussard's and Danny
                  Broussard's investment in the Common Shares is not for the
                  purpose of acquiring, directly or indirectly, control of, and
                  it has no intent to acquire or exercise control of, the
                  Company or to influence the decisions or policies of OMNI's
                  Board of Directors.

<PAGE>

      F. Registration Rights. In addition, and in connection with the issuance
of the Common Shares described above, OMNI warrants and represents that if for
any reason, OMNI causes a registration statement to be filed with the intention
of satisfying the requirements of the Securities and Exchange Act of 1933 for
the purpose of authorizing the issuance of any additional Common Shares of OMNI,
irrespective of the primary purpose of said issuance of additional Common
Shares, OMNI shall include in said registration statement the 50,000 Common
Shares issued to Becker, the 50,000 Common Shares issued to Hargrave the 50,000
Common Shares issued to N. R. Broussard and the 50,000 Common Shares issued to
Danny Broussard without having Becker, Hargrave, N. R. Broussard and Danny
Broussard incur any costs whatsoever. Notice of filing the registration
statement shall be provided within 7 days of such filing.

      G. Rule 144. Should any party need a Rule 144 Opinion of Counsel letter to
sale or transfer all or any portion of their respective Common Shares, OMNI will
engage securities counsel at its sole cost and expense to render and deliver the
opinion. In addition, OMNI will help facilitate any such transfer or sale by
engaging brokers, to handle the transfer at OMNI's discount brokerage rate, but
such fee is to be paid by the selling party, not OMNI.

      H. Agreement Not to Sue. OMNI agrees to not bring any action against or
otherwise pursue Becker, Hargrave, N. R. Broussard or Danny Broussard for any
breaches under the Agreements. OMNI reserves its rights to sue or otherwise
pursue any and all other parties to the Agreements for breaches thereof. OMNI
agrees to defend, indemnify and hold harmless Becker, Hargrave, N.R. Broussard
and Danny Broussard from and against any action that Edward Laborde and/or Karl
Comeaux might bring against one or more of them under or with respect to the
Agreements.

      I. Confidentiality. The parties hereto agree to keep the terms and
provisions of this Agreement confidential, except that the provisions hereof and
a copy of this Agreement may be provided to GECC, WBCC and their respective
counsel.

      J. Miscellaneous. This Agreement shall be binding upon the heirs, estates,
representatives, successors, and assigns of the parties hereto. This Agreement
shall constitute the entire agreement of the parties hereto relating to the
subject matter hereof. It does not however, affect matters provided for in the
original Agreements that are unaffected by this Agreement. No provision of this
Agreement shall be amended, modified, or waived except as agreed in writing by
the parties hereto. This Agreement shall be construed and enforced in accordance
with the laws of the State of Louisiana. In the event any of the sections,
paragraphs, provisions, sub-paragraphs, or portions thereof of this Agreement
are held to be unenforceable and invalid by any Court of competent jurisdiction,
the validity and enforceability of the remaining sections, paragraphs,
provisions, sub-paragraphs, or portions thereof shall not be affected thereby,
and each term and provision of the Agreement shall be valid and enforceable to
the fullest extent permitted by law. This Agreement is the product of mutual
negotiations between Becker, Hargrave, N. R. Broussard, Danny Broussard, OMNI,
Trussco and Trussco Properties. Becker, Hargrave, N. R, Broussard and Danny
Broussard have obtained the advice of counsel prior to

<PAGE>

entering into this Agreement. This Agreement has been negotiated and drafted by
all parties, and if any disagreement shall arise as to the construction or
meaning of this Agreement, the parties hereto agree that the rule of contract
interpretation that documents may be construed against the drafter shall have no
application to this Agreement.

      K. Prevails Party Attorney Fees. If any party has to resort to legal
action in order to enforce any provision of this Agreement, said party, if that
party prevails, is entitled to reasonable attorney's fees to be set by the
court.

      L. Representations and Warranties. Hargrave hereby represents that prior
to the assignment set forth above, he had a 1/3 interest in each of Seller Note
No.1 and Seller Note No. 2 and had not otherwise sold, assigned, encumbered or
pledged any of his interest in such notes to any person or entity. Hargrave
further represents and warrants that he had full right, power and authority to
transfer and assign such interest to Omni Properties Corp. free and clear of all
liens, security interests and encumbrances. Each of Becker, N. R. Broussard and
Danny Broussard represent that he has not sold, assigned, encumbered or pledged
any or all of his interest in Seller Note No. 3. Becker, N. R. Broussard and
Danny Broussard hereby collectively represent and that they have full right,
power and authority to surrender Seller Note No. 3 and accept the obligations of
OMNI set forth herein in full satisfaction of Seller Note No. 3 and further
authorize and direct any attorney holding Seller Note No. 3 on their behalf to
deliver such note to OMNI contemporaneously with the execution of this
Agreement.

      M. Further Assurances. At any time and from time to time, upon the written
request of OMNI, each of Becker, Hargrave, N.R. Broussard and Danny Broussard
agrees that he will promptly and duly execute and deliver any and all such
further instruments and documents and take such further actions as OMNI may deem
desirable to accomplish the surrender, release and satisfaction of Seller Note
No. 3 and the transfer and assignment of Hargrave's 1/3 interest in Seller Note
No. 1 and Seller Note No. 2.

                                      TRUSSCO, INC.

May 18, 2005                          BY: /s/ James C. Eckert
                                          -------------------------------------
                                      Name:  James C. Eckert
                                      Title: Chief Executive Officer

                                      TRUSSCO PROPERTIES, LLC

May 18, 2005                          BY: /s/ James C. Eckert
                                          -------------------------------------
                                      Name:  James C. Eckert
                                      Title: Chief Executive Officer

<PAGE>

                                      OMNI ENERGY SERVICES CORP.

May 18, 2005                          BY: /s/ James C. Eckert
                                      -----------------------------------------
                                      Name:  James C. Eckert
                                      Title: Chief Executive Officer

                                      OMNI PROPERTIES CORP.

May 18, 2005                          BY: /s/ James C. Eckert
                                      -----------------------------------------
                                      Name:  James C. Eckert
                                      Title: Chief Executive Officer

May 18, 2005                              /s/ Larry Becker
                                      -----------------------------------------
                                      Larry Becker

May 18, 2005                              /s/ Jacqueline Guilbeau Becker
                                      -----------------------------------------
                                      Jacqueline Guilbeau Becker

May 18, 2005                              /s/ Craig Hargrave
                                      -----------------------------------------
                                      Craig Hargrave

May 18, 2005                              /s/ Michele Broussard Hargrave
                                      -----------------------------------------
                                      Michele Broussard Hargrave

May 18, 2005                              /s/ N. R. Broussard
                                      -----------------------------------------
                                      N. R. Broussard

May 18, 2005                              /s/ Toni Faulk Broussard
                                      -----------------------------------------
                                      Toni Faulk Broussard

May 18, 2005                              /s/ Danny P. Broussard
                                      -----------------------------------------
                                      Danny P. Broussard

May 18, 2005                              /s/ Katherine Broussard
                                      -----------------------------------------
                                      Katherine Broussard

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00085-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00085-of-00352.parquet"}]]