Document:

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EXHIBIT 10.4

[CHASE LETTERHEAD]

                                                   ASSIGNMENT OF DEPOSIT ACCOUNT
Dated as of December 23, 2008

Blackwater New Orleans, L.L.C., whose address is 4006 Highway 44, Garyville,
Louisiana 70051 (the "Assignor"), pledges, assigns, transfers and grants a
security interest to JPMorgan Chase Bank, N.A., whose address is 201 St. Charles
Avenue, New Orleans, LA 70170 (together with its successors and assigns, the
"Bank") in the Account (as defined below) owned by the Assignor, all of the
Account in which Assignor has rights or power to transfer rights and all of the
Account in which the Assignor later acquires ownership, other rights or the
power to transfer rights. "Account" means each and all of 2908782200, any
interest, additions and proceeds due or to become due on the Account and any
substitutions, which Account is held at JPMorgan Chase Bank, N.A.(together with
its successors and assigns, "Financial Institution") and includes all of the
above described deposits, deposit accounts, payment intangibles, financial
assets and other obligations of the Financial Institution, whether they are
deposit accounts, negotiable or nonnegotiable or book entry certificates of
deposit, book entry investment time deposits, savings accounts, money market
accounts, transaction accounts, time deposits, negotiable order of withdrawal
accounts, share draft accounts, demand deposit accounts, instruments, general
intangibles, chattel paper or otherwise, and all funds held in or represented by
any of the foregoing, and any successor Account howsoever numbered, and all
Accounts issued in renewal, extension or increase or decrease of or replacement
or substitution for any of the foregoing; and all promissory notes, checks,
cash, certificates of deposit, passbooks, deposit receipts, instruments,
certificates and other records from time to time representing or evidencing the
Account described above and any supporting obligations relating to any of the
foregoing property.

This Assignment secures the payment and performance of the Liabilities. The term
"Borrower" in this Assignment means each and all of Blackwater New Orleans,
L.L.C.

CONTROL AGREEMENT WITH FINANCIAL INSTITUTION AND POWER OF ATTORNEY. The Bank's
presentation of a copy of this Assignment including the Notice of Assignment and
Acknowledgment and Control Agreement ("Notice") to the financial institution
holding or issuer of the Account, including Financial Institution, is the
Assignor's authentication of an irrevocable instruction to that financial
institution or issuer now or hereafter maintaining the Account to follow the
Bank's instructions with respect to any of the Account without the Assignor's
further consent concerning (1) the payment or reinvestment of cash dividends,
dividends or distributions and (2) the redemption, transfer, sale or any other
disposition or transaction concerning the Account or the income and principal
proceeds, substitutions and reinvestment of Account and (3) any other matter
relating to the Account. The Bank is given an irrevocable power of attorney
coupled with an interest that survives death or disability of the Assignor to
execute any control agreement in the Assignor's name with the Financial
Institution or other institution or issuer in form and substance satisfactory to
the Bank and to perform any obligation of the Assignor under this Assignment.
The Assignor also irrevocably authorizes and directs each financial institution
or issuer including the Financial Institution to send all notices, statements
and all other communications concerning the Account to the Bank upon request of
the Bank. The Bank is authorized at any time to restyle the Account or any
portion thereof in its name or its nominee's name. Each financial institution
and issuer, including Financial Institution, is directed to follow all of the
Bank's instructions without investigating the reason for any action taken by the
Bank or the existence of any default and may rely on the instructions of the
Bank without any liability to the Assignor. The rights and powers granted to the
Bank in this Assignment are powers coupled with an interest and will neither be
affected by the death, dissolution, termination of existence or bankruptcy of
the undersigned nor by the lapse of time.

LIABILITIES. The term "Liabilities" in this Assignment means all debts,
obligations, indebtedness and liabilities of every kind and character of the
Borrower whether individual, joint and several (solidary), contingent or
otherwise, now or hereafter existing in favor of the Bank including without
limitation, all liabilities, interest, costs and fees, arising under or from any
note, open account, overdraft, credit card, lease, Rate Management Transaction,
letter of credit application, endorsement, surety agreement, guaranty,
acceptance, foreign exchange contract or depository service contract, whether
payable to the Bank or to a third party and subsequently acquired by the Bank,
any monetary obligations (including interest) incurred or accrued during the
pendency of any bankruptcy, insolvency, receivership or other similar
proceedings, regardless of whether allowed or allowable in such proceeding, and
all renewals, extensions, modifications, consolidations, rearrangements,
restatements, replacements or substitutions of any of the foregoing. The term
"Rate Management Transaction" in this Assignment means any transaction
(including an agreement with respect thereto) that is a rate swap, basis swap,
forward rate transaction, commodity swap, commodity option, equity or equity
index swap, equity or equity index option, bond option, interest rate option,
foreign exchange transaction, cap transaction, floor transaction, collar
transaction, forward transaction, currency swap transaction, cross-currency rate
swap transaction, currency option, derivative transaction or any other similar
transaction (including any option with respect to any of these transactions) or
any combination thereof, whether linked to one or more interest rates, foreign
currencies, commodity prices, equity prices or other financial measures.

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REPRESENTATIONS, WARRANTIES AND COVENANTS. The Assignor represents, warrants and
covenants that it will not withdraw any moneys from the Account and that it has
not and will not assign the Account or any part of it. The passbook, certificate
or other evidence of the Account has been delivered to the Bank. If at any time
any part of the Account includes an International Banking Facility Time Deposit
(as defined in Regulation D of the Board of Governors of the Federal Reserve
System), any extensions of credit made by the Bank in reliance on this
Assignment and that part of the Account shall be used only to support the
undersigned's non-U.S. activities and that of its foreign affiliates.

DEFAULT/REMEDIES. If any of the Liabilities are not paid at maturity, whether by
acceleration or otherwise, or if an event of default or default occurs, under
the terms of any agreement related to any of the Liabilities, then the Bank
shall have the right immediately, without notice, at the Bank's option, to
withdraw (even if any early withdrawal penalty is imposed as a result) all or
any portion of the Account and apply those moneys to the Liabilities whether or
not the Liabilities have been declared to be due and owing, provided that, to
the extent any Liabilities consist of extensions of credit to the Borrower by
the issuance of letters of credit or other like obligations of the Bank to third
parties which have not then been utilized, such proceeds shall be held by the
Bank in a cash collateral account as security for the Liabilities.

PLEDGE. If the Assignor is not liable for all or any part of the Liabilities,
then the Assignor agrees that:

1.    If any moneys become available from any source other than the Account that
      the Bank can apply to the Liabilities, the Bank may apply them in any
      manner it chooses, including but not limited to applying them against
      obligations, indebtedness or liabilities which are not secured by this
      Assignment.
2.    The Bank may take any action against the Borrower, the Account or any
      other collateral for the Liabilities, or any other person or entity liable
      for any of the Liabilities.
3.    The Bank may release the Borrower or any other obligor from the
      Liabilities, either in whole or in part, or release the Account in whole
      or in part or any other collateral for the Liabilities, and need not
      perfect a security interest in the Account or any other collateral for the
      Liabilities.
4.    The Bank does not have to exercise any rights that it has against the
      Borrower or anyone else, or make any effort to realize on the Account or
      any other collateral for the Liabilities, or exercise any right of setoff.
5.    Without notice or demand and without affecting the Assignor's obligations
      hereunder, from time to time, the Bank is authorized to: (a) renew,
      modify, compromise, rearrange, restate, consolidate, extend, accelerate or
      otherwise change the time for payment of, or otherwise change the terms of
      the Liabilities or any part thereof, including increasing or decreasing
      the rate of interest thereon; (b) release, substitute or add any one or
      more sureties, endorsers, or guarantors; (c) take and hold other
      collateral for the payment of the Liabilities, and enforce, exchange,
      substitute, subordinate, impair, waive or release any such collateral; (d)
      proceed against the Account or any other collateral for the Liabilities
      and direct the order or manner of sale as the Bank in its discretion may
      determine; and (e) apply any and all payments received by the Bank in
      connection with the Liabilities, or recoveries from the Account or any
      other collateral for the Liabilities, in such order or manner as the Bank
      in its discretion may determine.
6.    The Assignor's obligations hereunder shall not be released, diminished or
      affected by (a) any act or omission of the Bank, (b) the voluntary or
      involuntary liquidation, sale or other disposition of all or substantially
      all of the assets of the Borrower, or any receivership, insolvency,
      bankruptcy, reorganization, or other similar proceedings affecting the
      Borrower or any of its assets, (c) any change in the composition or
      structure of the Borrower or any other obligor on the Liabilities,
      including a merger or consolidation with any other person or entity, or
      (d) any payments made upon the Liabilities.
7.    The Assignor expressly consents to any impairment of any other collateral
      for the Liabilities, including, but not limited to, failure to perfect a
      security interest and release of any other collateral for the Liabilities
      any such impairment or release shall not affect the Assignor's obligations
      hereunder.
8.    The Assignor waives and agrees not to enforce any rights of subrogation,
      contribution or indemnification that it may have against the Borrower, any
      person liable on the Liabilities, or the Account, until the Borrower and
      the Assignor have fully performed all their obligations to the Bank, even
      if those obligations are not covered by this Assignment.

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9.    The Assignor waives (a) to the extent not prohibited by applicable law,
      all rights and benefits under any laws or statutes regarding sureties, as
      may be amended, (b) any right the Assignor may have to receive notice of
      the following matters before the Bank enforces any of its rights: (i) the
      Bank's acceptance of this Assignment, (ii) incurrence or acquisition of
      any Liabilities, (iii) any credit that the Bank extends to the Borrower,
      (iv) collateral received or delivered, default by any party to any loan
      papers related to the Liabilities or other action taken in reliance on
      this Assignment, and all notices and other demands of any description, (v)
      diligence and promptness in preserving liability against any obligor on
      the Liabilities, and in collecting or bringing suit to collect the
      Liabilities from any obligor on the Liabilities or to pursue any remedy in
      the Bank's power to pursue; (vi) notice of extensions, renewals,
      modifications, rearrangements, restatements and substitutions of the
      Liabilities or any collateral for the Liabilities; (vii) notice of failure
      to pay any of the Liabilities as they mature, any other default, adverse
      change in the financial condition of any obligor on the Liabilities,
      release or substitution of any collateral, subordination of the Bank's
      rights in any collateral, and every other notice of every kind that may
      lawfully be waived; (viii) the Borrower's default, (ix) any demand,
      diligence, presentment, dishonor and protest, or (x) any action that the
      Bank takes regarding the Borrower, any other person or entity, the
      Account, any other collateral for the Liabilities, or any of the
      Liabilities, which it may be entitled to contractually, by law or in
      equity, (c) any right it may have to require the Bank to proceed against
      the Borrower, any guarantor or other obligor of the Liabilities, the
      Account or any other collateral for the Liabilities, or pursue any remedy
      in the Bank's power to pursue, (d) any defense based on any claim that the
      Assignor's obligations exceed or are more burdensome than those of the
      Borrower, (e) the benefit of any statute of limitations affecting the
      Assignor's obligations hereunder or the enforcement hereof, (f) any
      defense arising by reason of any disability or other defense of the
      Borrower or by reason of the cessation from any cause whatsoever (other
      than payment in full) of the obligation of the Borrower for the
      Liabilities, and (g) any defense based on or arising out of any defense
      that the Borrower may have to the payment or performance of the
      Liabilities or any portion thereof. The Bank may waive or delay enforcing
      any of its rights without losing them. Any waiver affects only the
      specific terms and time period stated in the waiver.
10.   The Assignor agrees that to the extent any payment or transfer is received
      by the Bank in connection with the Liabilities, and all or any part of
      such payment or transfer is subsequently invalidated, declared to be
      fraudulent or preferential, set aside or required to be transferred or
      repaid by the Bank or transferred to or paid over to a trustee, receiver
      or any other person or entity, whether under any bankruptcy act or
      otherwise (any such payment or transfer is hereinafter referred to as a
      "Preferential Payment"), then this Assignment shall continue to be
      effective or shall be reinstated, as the case may be, and whether or not
      the Bank is in possession of this Assignment or whether this Assignment
      has been marked paid, cancelled, released or returned to the Assignor,
      and, to the extent of the payment or repayment or other transfer by the
      Bank, the Liabilities or part intended to be satisfied by the Preferential
      Payment shall be revived and continued in full force and effect as if the
      Preferential Payment had not been made. If this Assignment must be
      reinstated, the Assignor agrees to execute and deliver to the Bank any new
      assignments and agreements, if necessary or if requested by the Bank, in
      form and substance acceptable to the Bank, covering the Account.
11.   The Assignor agrees to fully cooperate with the Bank and not to delay,
      impede or otherwise interfere with the efforts of the Bank to secure
      payment from the assets which secure the Liabilities including actions,
      proceedings, motions, orders, agreements or other matters relating to
      relief from automatic stay, abandonment of property, use of cash
      collateral and sale of the Bank's collateral free and clear of all liens.
12.   The Assignor has (a) without reliance on the Bank or any information
      received from the Bank and based upon the records and information the
      Assignor deems appropriate, made an independent investigation of the
      Borrower, the Borrower's business, assets, operations, prospects and
      condition, financial or otherwise, and any circumstances that may bear
      upon those transactions, the Borrower or the obligations, liabilities and
      risks undertaken pursuant to this Assignment; (b) adequate means to obtain
      from the Borrower on a continuing basis information concerning the
      Borrower and the Bank has no duty to provide any information concerning
      the Borrower or other obligor on the Liabilities to the Assignor; (c) full
      and complete access to the Borrower and any and all records relating to
      any Liabilities now or in the future owing by the Borrower; (d) not relied
      and will not rely upon any representations or warranties of the Bank not
      embodied in this Assignment or any acts taken by the Bank prior to or
      after the execution or other authentication and delivery of this
      Assignment (including but not limited to any review by the Bank of the
      business, assets, operations, prospects and condition, financial or
      otherwise, of the Borrower); and (e) determined that the Assignor will
      receive benefit, directly or indirectly, and has or will receive fair and

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      reasonably equivalent value, for the grant of the interest in the Account
      to the Bank. By entering into this Assignment, the Assignor does not
      intend: (i) to incur or believe that the Assignor will incur debts that
      would be beyond the Assignor's ability to pay as those debts mature; or
      (ii) to hinder, delay or defraud any creditor of the Assignor. The
      Assignor is neither engaged in nor about to engage in any business or
      transaction for which the remaining assets of the Assignor are
      unreasonably small in relation to the business or transaction, and any
      property remaining with the Assignor after the execution or other
      authentication of this Assignment is not unreasonably small capital.

MISCELLANEOUS. The Assignor consents to any extension, postponement or renewal
of any Liabilities, the release or discharge of all or any part of any security
for the Liabilities, and the release or discharge or suspension of any rights
and remedies against any person who may be liable for any of the Liabilities.
The Bank does not have to look to any other right, any other collateral, or any
other person for payment before it exercises its rights under this Assignment.
The Assignor's obligations to the Bank under this Assignment are not subject to
any condition, precedent or subsequent. If more than one person or entity signs
this Assignment as Assignor, their obligations, covenants, representations and
warranties are joint and several (solidary) and the Account includes any
property that is owned by any one or more, individually or jointly with any
other person or entity. This Assignment is binding on the Assignor and its
heirs, successors and assigns, and is for the benefit of the Bank and its
successors and assigns. The use of section headings shall not limit the
provisions of this Assignment. The Assignor authorizes the Bank to take whatever
actions, and to execute any agreement, document or instrument, which the Bank
deems necessary or desirable to accomplish the purposes of this Assignment. A
carbon, photographic or other reproduction of this Assignment is sufficient as,
and can be filed as, a financing statement. The Bank is irrevocably appointed
the Assignor's attorney-in-fact to execute any financing statement on the
Assignor's behalf covering the Account. The Assignor authorizes the Bank to file
one or more financing statements related to the security interests created by
this Assignment and further authorizes the Bank, instead of the Assignor, to
sign such financing statements.

GOVERNING LAW AND VENUE. This Assignment shall be governed by and construed in
accordance with the laws of the State of Louisiana (without giving effect to its
laws of conflicts), and to the extent applicable, federal law, except to the
extent that the laws regarding the perfection and priority of security interests
of the state(s) in which either the Assignor or any property securing the
Liabilities is located, are applicable. The Assignor agrees that any legal
action or proceeding with respect to any of its obligations under this
Assignment may be brought by the Bank in any state or federal court located in
the State of Louisiana, as the Bank in its sole discretion may elect. By the
execution and delivery of this Assignment, the Assignor submits to and accepts,
for itself and in respect of its property, generally and unconditionally, the
non-exclusive jurisdiction of those courts. The Assignor waives any claim that
the State of Louisiana is not a convenient forum or the proper venue for any
such suit, action or proceeding.

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WAIVER OF SPECIAL DAMAGES. THE ASSIGNOR WAIVES, TO THE MAXIMUM EXTENT NOT
PROHIBITED BY LAW, ANY RIGHT THE UNDERSIGNED MAY HAVE TO CLAIM OR RECOVER FROM
THE BANK IN ANY LEGAL ACTION OR PROCEEDING ANY SPECIAL, EXEMPLARY, PUNITIVE OR
CONSEQUENTIAL DAMAGES.

JURY WAIVER. THE ASSIGNOR AND THE BANK (BY ITS ACCEPTANCE HEREOF) HEREBY
VOLUNTARILY, KNOWINGLY, IRREVOCABLY AND UNCONDITIONALLY WAIVE ANY RIGHT TO HAVE
A JURY PARTICIPATE IN RESOLVING ANY DISPUTE (WHETHER BASED ON CONTRACT, TORT, OR
OTHERWISE) BETWEEN THE ASSIGNOR AND THE BANK ARISING OUT OF OR IN ANY WAY
RELATED TO THIS DOCUMENT. THIS PROVISION IS A MATERIAL INDUCEMENT TO THE BANK TO
PROVIDE THE FINANCING DESCRIBED HEREIN.

                                        ASSIGNOR:

                                        Blackwater New Orleans, L.L.C.

                                        By: Blackwater Midstream Corp., Manager

                                        By:
                                            ------------------------------------

                                            ------------------------------------
                                            Printed Name                   Title

                                        Date Signed:
                                                     ---------------------------

The Bank acknowledges that the Account has been assigned to the Bank and is
subject to a lien, security interest, pledge and assignment in the Bank's favor
and that the Bank has control of the Account and has recorded the Bank's
interest in the Account in the books and records of JPMorgan Chase Bank, N.A.
and the Bank will follow the Bank's instructions without the Assignor's further
consent.

BANK:

JPMorgan Chase Bank, N.A.

By:
    -----------------------------------

    -----------------------------------
    Printed Name                  Title

                                       51ST AMENDEMENT TO THE 7% NOTES DUE MAY 31, 2008

AMENDMENT TO LOAN TRANSACTION AGREEMENT

THIS
AMENDMENT TO LOAN TRANSACTION AGREEMENT (the “Amendment”) is made and entered
into effective as of the 29th day of December, 2008, by and between Silvergraph
International, Inc. (the “Company”) and the undersigned holders of promissory
notes referenced below (the “Holders”), upon the following premises:

A.

Holders
are the holders of certain 7% Convertible Promissory Notes dated January 25,
2008 (the “Notes”) which were purchased from the Company pursuant to the terms
of a Subscription Agreement and Security Agreement of the same date.
  

B.

The
obligations represented by the Notes have been amended by a 1st
Amendment to the 7% Notes due May 31, 2008, dated May 31, 2008; a 2nd
Amendment to the 7% Notes Due June 30, 2008, dated June 20, 2008; and a
3rd Amendment to the 7% Notes due August 31, 2008, dated August 31,
2008; a 4th Amendment to the 7% Notes due October 31, 2008, and; a
5th Amendment to the 7% Notes due December 15, 2008 (the “Prior
Amendments”) which are incorporated herein by reference.   For
purposes of this Amendment, the Notes, Subscription Agreement and Security
Agreement, as amended by the Prior Amendments, are hereby collectively referred
to as the “Bridge Loan Agreement.”   

C.

Under
the terms of the Bridge Loan Agreement, the Maturity Date of the Notes is
December 15, 2008.    

D.

The
Company has asked for, and the Holders have agreed to provide, an extension to
the Maturity Date.   As consideration for such extension, the Company
has agreed to grant to Holders shares of common stock of the Company.  

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

1.

Section
2.0 of the Note entitled Maturity. The Maturity Date for the Notes is hereby
extended from December 15, 2008, to January 31, 2008. 

2.

Cooperation.
 Each of the Parties to this Amendment agree to execute such documents and
take such further action as may be necessary to carry out the objectives of this
Amendment.  In addition, the Company covenants to take all reasonable steps
to comply with the terms of the Bridge Loan Agreement.

3.

Scope
of Amendment.  Except as amended above, the terms contained in the
Bridge Loan Agreement (including the Prior Amendments) shall remain the same and
in full force and effect.   

[Signature page follows]

Amendment to Loan Transaction Agreement

Page
1

_______________________________________________________________________________________

 

 

 

 

IN
WITNESS WHEREOF, this Amendment has been executed and delivered on the date
hereof by the duly authorized representative of the Company and the Holders.

COMPANY:

SILVERGRAPH
INTERNATIONAL, INC.

 

By:

/s/
James R. Simpson

Name:

James
R. Simpson

Title:

Chief
Executive Officer

Date:

12/15/2008

HOLDERS:

ANTAEUS CAPITAL
PARTNERS, LLC

By:

/s/
Cesar Moya

Name:

Cesar
Moya

Title:

Authorized
Signatory

Date:

12/29/2008

THOMAS G.
SCHUSTER

/s/
Thomas G. Schuster

Name:

Thomas
G. Schuster

Date:

12/19/2008

ROBERT
J. NEBORSKY M.D. INC. 

COMBINATION RETIREMENT TRUST

 

By:

/s/
Robert J. Neborsky

Name: Robert J.
Neborsky

Title:

Authorized
Signatory

Date:

12/23/2008

Amendment to Loan Transaction Agreement

Page
2

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