Document:

EXHIBIT 10.92

                                DERMISONICS, INC.

                                 PROMISSORY NOTE

$22,500.00                                                      March 20, 2007

     DERMISONICS,  INC.,  a  Nevada  corporation  (the  "Company"  or  "Maker"),
promises  to  pay  to  GIBSON,  HAGLUND  &  PAULSEN, at 2 Park Plaza, Suite 450,
Irvine,  California  92614  or holder ("Payee"), on or before September 30, 2007
("Maturity"),  the sum of Twenty-two Thousand Five Hundred Dollars ($22,500.00),
with interest on the unpaid principal balance at the rate of ten percent (10.0%)
per  annum  accruing  from  the  dates  below for the principal amount set forth
opposite  each  date a loan was advanced, with principal and interest payable at
Maturity:

          November  30,  2006    $5,000.00
          December  1,  2006     $2,000.00
          December  7,  2006     $3,000.00
          December  22,  2006    $5,000.00
          January  11,  2007     $1,000.00
          January  16,  2007     $3,500.00
          January  23,  2007     $2,100.00
          January  24,  2007     $900.00

     A  default  ("Event  of Default") shall occur on this Note upon (i) Maker's
failure to make the payment required on this Note; (ii) the filing of a petition
in  bankruptcy  by Maker which is not dismissed within sixty (60) days; or (iii)
the  appointment  of a receiver for Maker; (iv) an assignment for the benefit of
creditors.  In  the  case of an Event of Default, the Payee shall have the right
to  declare  the  entire  principal and accrued but unpaid interest on this Note
immediately  due  and  payable.

     Payee  shall  be  entitled  to collect a reasonable attorneys' fee from the
Maker,  as  well  as other costs and expenses reasonably incurred, in curing any
default  or  attempting  collection  of the payment due on this Note.  This Note
shall  be  payable  in  lawful  money  of the United States.  This Note shall be
governed  by  and  construed  solely in accordance with the laws of the State of
Nevada.  If  any term, provision, covenant, or condition of this Note is held to
be  invalid,  void,  or unenforceable, the rest of the Note shall remain in full
force  and  effect  and  shall  in no way be affected, impaired, or invalidated.

     This  Note  shall be payable in full at any time prior to the maturity date
without  pre-payment  penalty.

     IN  WITNESS  WHEREOF, Maker has executed this Promissory Note as of the day
first  hereinabove  written  at  Irvine,  California.

MAKER:                                  DERMISONICS,  INC.

                                        By: /s/ Grant Atkins
                                            --------------------------
                                            Grant  Atkins,
                                            DirectorExhibit 10.17

    
      

    

    EXHIBIT
      10.17

     

    FIRST
      AMENDMENT TO CREDIT AND SECURITY AGREEMENT

    

    THIS
      FIRST AMENDMENT TO CREDIT AND SECURITY AGREEMENT (this "Amendment"),
      dated
      as of May 11, 2006, is made by and between IWC
      SERVICES, LLC,
      a Texas
      limited liability company ("Borrower")
      and
WELLS
      FARGO BANK,
      National Association ("Lender"),
      acting through its WELLS
      FARGO BUSINESS CREDIT
      operating division.

    

    RECITALS

    

    Borrower,
      Boots & Coots International Well Control, Inc. ("BNC")
      and
      Lender are parties to the Credit and Security Agreement dated as of March 3,
      2006 (the "Credit
      Agreement").

    

    Borrower
      has requested that certain amendments and waivers be made to the Credit
      Agreement, which Lender is willing to make pursuant to the terms and conditions
      set forth herein.

    

    NOW,
      THEREFORE, in consideration of the premises and of the mutual covenants and
      agreements herein contained, it is agreed as follows:

    

    1.    Consent
      to Assignment of Certain Intellectual Property Rights.  As
      of the Effective Date,
      Lender consents to HWCES' execution and delivery of the Assignment, identical
      in
      form and content to Exhibit A attached hereto (the "HWCES
      Assignment"),
      notwithstanding any limitation in the Credit Agreement regarding a Credit
      Party's disposition of assets (including, without limitation, any notification
      requirement or other restriction under Sections
      6.1(m)
      or
6.17
      of the
      Credit Agreement). To the extent that Lender's lien securing the Obligations
      now
      encumbers the Intellectual Property Rights to be transferred pursuant to the
      HWCES Assignment, Lender agrees that its lien and security interest shall be
      released there from as of the Effective Date.

    

    2.    Amendment
      to Section 6.8 of the Credit Agreement.  As
      of the Effective Date,
Section
      6.8
      of the
      Credit Agreement shall be amended and restated, in its entirety, to read as
      follows:

    

    Salaries.
      BNC and
      Borrower will not, and will not permit any other Credit Party to, pay excessive
      or unreasonable salaries, bonuses, royalties, license fees, commissions,
      consultant fees or other compensation; or increase the salary, bonus,
      commissions, consultant fees or other compensation of any Director, Officer
      or
      consultant, or any member of their respective families, either individually
      or
      for all such Persons in the aggregate, if such increase would have or could
      be
      reasonably expected to have a Material Adverse Effect.

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    3.    Amendment
      to Article V of the Credit Agreement.  As
      of the Effective Date,
Section
      5.24
      shall be
      added to the end of Article
      V
      of the
      Credit Agreement to read as follows:

    

    Section
      5.24 Houseboat. 
      The
      boat
      owned by IWC Services, as successor by merger to HWC, registered under Louisiana
      Registration Number LA-7368-FJ (the "Houseboat"),
      has
      not constituted or qualified as a "vessel" under the United States Ship Mortgage
      Act. Further, the Houseboat has not been subject to the jurisdiction of the
      United States Surface Transportation Board. No filing other than the filing
      of
      Lender's financing statement against IWC Services with the Secretary of State
      of
      the State of Texas is necessary for Lender have a valid and perfected security
      interest in the Houseboat.

    

    4.    Amendment
      to Article VI of the Credit Agreement.  As
      of the Effective Date,
Section 6.30 shall be added to the end of Article
      VI
      of the
      Credit Agreement to read as follows:

    

    Section
      6.30 Houseboat.
      BNC and
      Borrower may not, and will not permit any of the Credit Parties to, cause the
      Houseboat to constitute or qualify as a "vessel" under the United States Ship
      Mortgage Act or to become subject to the jurisdiction of the United States
      Surface Transportation Board.

    

    5.    Amendment
      to Post-Closing Agreement.  As
      of the Effective Date,
      the table on Exhibit A to the Post-Closing Agreement shall be amended and
      restated, in its entirety, as follows:

    

    
      	
              Requirement

            	
              Delivery
                Date

            
	
              Deliver
                to Lender evidence of the satisfaction, and release of all presently
                effective judgments and Liens encumbering BNC's and its Domestic
                Subsidiary's assets (other than those Liens in favor of Lender) and
                deliver to Lender new judgment and lien search reports from the
                appropriate jurisdictions for BNC and each of its Domestic Subsidiaries
                reflecting the satisfaction and release of those judgments and Liens.
                

               

            	
              May
                31, 2006 

            
	
              Deliver
                to Lender an access and lien waiver agreement from the lessor of
                the
                mobile trailers located at BNC's Houston, Texas headquarters whereby
                the
                lessor agrees to waive all liens against the contents of the trailers
                and
                permit Lender to retrieve the contents following the repossession
                of the
                trailers or the termination of the applicable rental agreement.
                

               

            	
              May
                18, 2006 

            

    

     

    
      
        
        

      

      
        -2-

        
          

        

      

      
        
        

      

    

    

    
      	
              Deliver
                to Lender (i) an original of the certificate evidencing 65.1% of
                all
                issued and outstanding Equity Interests in HWC Limited C.A. and reflecting
                HWC Limited as the owner of such Equity Interests along with the
                appropriate transfer powers duly executed in blank and (ii) transfer
                powers duly executed in blank in connection with the pledge of 65%
                of all
                issued and outstanding Equity Interests in Boots & Coots Services de
                Mexico S. de R.L. de C.V. by Boots & Coots Services, Inc. and IWC
                Services, LLC, the two owners of such Equity Interests. 

               

            	
              May
                18, 2006 

            

    

    

    6.    No
      Other Changes.  Except
      as explicitly
      amended by this Amendment, all of the terms and conditions of the Credit
      Agreement and the other Loan Documents shall remain in full force and
      effect.

    

    7.    Conditions
      Precedent.  This
      Amendment shall be
      effective when Lender shall have received an executed original hereof, together
      with each of the following, each in substance and form acceptable to Lender
      in
      its sole discretion (the date on which these conditions are satisfied shall
      be
      the "Effective Date"):

    

    (a)    Originals
      of the Acknowledgment and Agreement of Guarantors and the Acknowledgment and
      Agreement of Subordinated Creditor set forth at the end of this Amendment,
      duly
      executed by each Guarantor and the Subordinated Creditor.

    

    (b)    Such
      other matters as Lender may require in its Permitted Discretion.

    

    8.    Representations
      and Warranties.  Borrower hereby represents
      and
      warrants to Lender as follows:

    

    (a)    Borrower
      and each Guarantor have all requisite power and authority to execute this
      Amendment and the Acknowledgement and Agreement of Guarantors, as applicable
      and
      to perform all of their obligations under this Amendment and the Acknowledgement
      and Agreement of Guarantors, and this Amendment and the Acknowledgement and
      Agreement of Guarantors have been duly executed and delivered by Borrower and
      the Guarantors, as applicable, and constitute the legal, valid and binding
      obligations of such parties, enforceable in accordance with their respective
      terms.

    

    (b)    The
      execution, delivery and performance by Borrower and Guarantors of this Amendment
      and the Acknowledgement and Agreement of Guarantors have been duly authorized
      by
      all necessary action and do not (i) require any authorization, consent or
      approval by any governmental department, commission, board, bureau, agency or
      instrumentality, domestic or foreign, (ii) violate any provision of any law,
      rule or regulation or of any order, writ, injunction or decree presently in
      effect, having applicability to Borrower or any Guarantor, or any governing
      document of Borrower or any Guarantor, or (iii) result in a breach of or
      constitute a default under any indenture or loan or credit agreement or any
      other agreement, lease or instrument to which Borrower or any Guarantor is
      a
      party or by which it or its properties may be bound or
      affected.

    
      
        
        

      

      
        -3-

        
          

        

      

      
        
        

      

    

    (c)    The
      Intellectual Property Rights to be transferred pursuant to me HWCES Assignment
      are not necessary for the conduct of Borrower's or any other Credit Party's
      business operations, and no Material Adverse Effect will occur after giving
      effect to the HWCES Assignment.

    

    (d)    All
      of
      the representations and warranties contained in Article V of the Credit
      Agreement are correct on and as of the date hereof as though made on and as
      of
      such, date, except to the extent that such representations and warranties relate
      solely to an earlier date.

    

    9.    References.  All
      references in the
      Credit Agreement to "this Agreement" shall be deemed to refer to the Credit
      Agreement as amended hereby; and any and all references in the Security
      Documents to the Credit Agreement shall be deemed to refer to the Credit
      Agreement as amended hereby.

    

    10.  
        No
      Other Waiver.  Except
      as set forth in
Section 1 hereof, the execution of this Amendment and acceptance of any
      documents related hereto shall not be deemed to be a waiver of any Default
      or
      Event of Default under the Credit Agreement or breach, default or event of
      default under any Security Document or other document held by Lender, whether
      or
      not known to Lender and whether or not existing on the date of this
      Amendment.

    

    11. 
        Release.  BORROWER,
      AND EACH
      GUARANTOR BY SIGNING THE ACKNOWLEDGMENT AND AGREEMENT OF GUARANTORS SET FORTH
      BELOW, EACH HEREBY ABSOLUTELY AND UNCONDITIONALLY RELEASES AND FOREVER
      DISCHARGES LENDER, AND ANY AND ALL PARTICIPANTS, PARENT CORPORATIONS, SUBSIDIARY
      CORPORATIONS, AFFILIATED CORPORATIONS, INSURERS, INDEMNITORS, SUCCESSORS AND
      ASSIGNS THEREOF, TOGETHER WITH ALL OF THE PRESENT AND FORMER DIRECTORS,
      OFFICERS, ATTORNEYS, AGENTS AND EMPLOYEES OF ANY OF THE FOREGOING, FROM ANY
      AND
      ALL CLAIMS, DEMANDS OR CAUSES OF ACTION OF ANY KIND, NATURE OR DESCRIPTION,
      WHETHER ARISING IN LAW OR EQUITY OR UPON CONTRACT OR TORT OR UNDER ANY STATE
      OR
      FEDERAL LAW OR OTHERWISE, WHICH BORROWER OR SUCH GUARANTOR HAS HAD, NOW HAS
      OR
      HAS MADE CLAIM TO HAVE AGAINST ANY SUCH PERSON FOR OR BY REASON OF ANY ACT,
      OMISSION, MATTER, CAUSE OR THING WHATSOEVER ARISING FROM THE BEGINNING OF TIME
      TO AND INCLUDING THE EFFECTIVE DATE, WHETHER SUCH CLAIMS, DEMANDS AND CAUSES
      OF
      ACTION ARE MATURED OR UNMATURED OR KNOWN OR UNKNOWN, INCLUDING,
      WITHOUT LIMITATION, ALL CLAIMS, DEMANDS OR CAUSES OF ACTION ARISING IN WHOLE
      OR
      PART FROM THE NEGLIGENCE OR STRICT LIABLITY OF LENDER OR ANY OTHER RELEASED
      PARTY.

    
      
        
        

      

      
        -4-

        
          

        

      

      
        
        

      

    

    12.  
        Severability.  If
      any term or provision
      of this Amendment is adjudicated to be invalid under applicable laws or
      regulations, such provision shall be inapplicable to the extent of such
      invalidity without affecting the validity or enforceability of the remainder
      of
      this Amendment which shall be given effect so far as possible.

    

    13.  
        Binding
      Effect.  This
      Amendment shall be
      binding upon and inure to the benefit of Borrower and Lender and their
      respective successors and assigns, except that Borrower shall not have the
      right
      to assign any rights thereunder or any interest therein without Lender's prior
      written consent.

    

    15.  
        Costs
      and Expenses.  Borrower
      hereby reaffirms
      its agreement under the Credit Agreement to pay or reimburse Lender on demand
      for all costs and expenses incurred by Lender in connection with the Loan
      Documents, including without limitation all reasonable fees and disbursements
      of
      legal counsel. Without limiting the generality of the foregoing, Borrower
      specifically agrees to pay all fees and disbursements of counsel to Lender
      for
      the services performed by such counsel in connection with the preparation of
      this Amendment and the documents and instruments incidental hereto. Borrower
      hereby agrees that Lender may, at any time or from time to time in its sole
      discretion and without further authorization by Borrower, make a loan to
      Borrower under the Credit Agreement, or apply the proceeds of any loan, for
      the
      purpose of paying any such fees, disbursements, costs and expenses.

    

    16.  
        Miscellaneous.  This
      Amendment, the
      Acknowledgment and Agreement of Guarantors and the Acknowledgment and Agreement
      of Subordinated Creditor (i) may be executed in any number of counterparts,
      each
      of which when so executed and delivered shall be deemed an original and all
      of
      which counterparts, taken together, shall constitute one and the same instrument
      and (ii) AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT
      AMONG THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
      CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES, AND THERE ARE
      NO
      UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES. Capitalized terms used in
      this Amendment and the Acknowledgments attached hereto have the meanings given
      to them in the Credit Agreement unless otherwise specified. This Amendment
      shall
      be governed and construed in accordance with the laws of the State of
      Texas.

    

    [SIGNATURE
      PAGE FOLLOWS]

     

    
      
        
        

      

      
        -5-

        
          

        

      

      
        
        

      

    

    

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

       

      

      
        	
                IWC
                  SERVICES, LLC, a Texas limited liability
                  company 

              	 
	 	 	 
	
                By:

              	/s/
                Dewitt Edwards	 
	
                Name:
                  Dewitt Edwards

              	 
	
                Title:
                  Vice President

              	 
	 	 	 
	 	 	 
	
                WELLS
                  FARGO BANK, NATIONAL ASSOCIATION,

              	 
	
                acting
                  through its Wells Fargo Business Credit operating
                  division 

              	 
	 	 
	
                By: 

              	/s/
                Mark L Odle	 
	
                Name:
                  Mark L. Odle 

              	 
	
                Title:
                  Vice President 

              	 

      

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

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

       

      

      
        	
                IWC
                  SERVICES, LLC, a Texas limited liability
                  company

              	 
	 	 	 
	
                By:

              	/s/
                Jerry Winchester 	 
	
                Name:
                  Jerry Winchester 

              	 
	
                Title:
                  President and CEO 

              	 
	 	 	 
	 	 	 
	
                WELLS
                  FARGO BANK, NATIONAL ASSOCIATION

                acting
                  through its Wells Fargo
                  Business Credit operating division 

              	 
	 	 	 
	
                By: 

              	/s/
                Mark L. Odle	 
	
                Name:
                  Mark L. Odle 

              	 
	
                Title:
                  Vice President 

              	 

      

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      ACKNOWLEDGMENT
        AND AGREEMENT OF GUARANTORS

      

      Each
        undersigned, each a guarantor of the indebtedness and other obligations of
        Borrower
        to Lender pursuant to a separate Guaranty each dated as of March 3, 2006
        (each a
"Guaranty"),
        hereby (i) acknowledges receipt of the foregoing Amendment; (ii) consents
        to the
terms
        (including without limitation the release set forth in Section
        8
        of the
        Amendment) and execution
        thereof; (iii) reaffirms its obligations to Lender pursuant to the terms
        of its
        Guaranty; and (iv) acknowledges that Lender may amend, restate, extend, renew
        or
        otherwise modify the Credit Agreement and any indebtedness or agreement of
        Borrower, or enter into any agreement or extend additional or other credit
        accommodations, without notifying or obtaining the consent of the undersigned
        and without impairing the liability of the undersigned under its Guaranty
        for
        all of Borrower's present and future indebtedness and otter obligations to
        Lender.

      

      BOOTS
        & COOTS INTERNATIONAL WELL CONTROL, INC.

      BOOTS
        & COOTS SERVICES, INC.

      BOOTS
        & COOTS SPECIAL SERVICES, INC.

      ELMAGCO,
        INC.

      HELL
        FIGHTERS, INC.

      HWC
        LIMITED

      IWC
        ENGINEERING, INC.

      

      

      
        	
                By:

              	 
	
                /s/Dewitt
                  Edwards

              	 	 
	
                Name:
                  

              	
                Dewitt
                  Edwards

              	 	 
	
                Title:

              	
                Senior
                  Vice President and Chief Financial Officer of Boots & Coots and Boots
                  & Coots International Well Control, Inc. Vice President of each other
                  entity above

              	 	 

      

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      ACKNOWLEDGMENT
        AND AGREEMENT OF SUBORDINATED CREDITORS

      

      The
        undersigned, a subordinated creditor of BNC pursuant to each Senior Subordinated
        Promissory Note, hereby (i) acknowledges receipt of the foregoing Amendment;
        (ii) consents to the
        terms
        and execution thereof; (iii) reaffirms the terms of each Senior Subordinated
        Promissory
        Note; and (iv) acknowledges that Lender may amend, restate, extend, renew
        or
otherwise
        modify the Loan Documents and any indebtedness or agreement of Borrower or
        enter
        into any agreement or extend additional or other credit accommodations (in
        each
        case subject to any
        limitations set forth in the respective Senior Subordinated Promissory Note),
        without notifying
        or obtaining the consent of the undersigned except as may be expressly required
        under the
        terms
        of each Senior Subordinated Promissory Note.

      

      
        	
                OIL
                  STATES ENERGY SERVICES, INC.

              	 
	
                (formerly
                  known as HWC Energy Services, Inc.)

              	 
	 	 	 
	 	 	 
	 	 	 
	
                By:

              	 
	 /s/
                Larry B. Wolod	 
	
                Name:

              	
                Larry
                  B. Wolod 

              	 
	
                Title: 

              	
                Vice
                  President and Assistant Secretary

              	 

      

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      Exhibit:
        A to First Amendment to Credit and Security Agreement

      

      ASSIGNMENT

      

      WHEREAS,
        HWCES International, a Cayman Islands corporation (hereinafter "ASSIGNOR"),
        is
        the
        owner of the right, title and interest in certain United States patents
        (hereinafter "Patents") and is the
        owner
        of the right, title and interest in certain Canadian patent applications
        (hereinafter "Applications"),
        which Patents and Applications are listed in Schedule
        A
        attached
        hereto;

      

      WHEREAS,
        Oil States Energy Services, Inc., a Delaware corporation formerly known as
        HWC
        Energy Services, Inc., having a business address of c/o Oil States
        International, Inc, Three Allen Center, 333
        Clay
        Street, Suite 4620, Houston, Texas 77002 (hereinafter "ASSIGNEE"), and ASSIGNOR
        previously
        entered into that certain Assignment dated as of February 28, 2006 (the "Initial
        Assignment"),
        pursuant to which ASSIGNOR assigned to ASSIGNEE the entire right, title and
        interest in
        and to
        certain United States and Canadian patents and patent applications listed
        in a
        schedule thereto;

      

      WHEREAS,
        ASSIGNOR and ASSIGNEE intended for the Patents and the Applications to
have
        been
        assigned from ASSIGNOR to ASSIGNEE pursuant to the terms of the Initial
        Assignment;

      

      WHEREAS,
        the Patents and the Applications were inadvertently excluded from the schedule
        of assigned patents and patent applications attached to the Initial
        Assignment;

      

      WHEREAS,
        ASSIGNOR and ASSIGNEE now desire to evidence their agreement that all
right,
        title and interest in and to the Patents and Applications, and in and to
        the
        inventions disclosed therein
        (the "Inventions"), be assigned to ASSIGNEE;

      

      NOW,
        THEREFORE, for and in consideration of One Dollar ($1.00) each and for other
        good and
        valuable consideration, the receipt and sufficiency of which is hereby
        acknowledged by ASSIGNOR
        and ASSIGNEE, effective as of the 28th day of February, 2006,
        ASSIGNOR has assigned, sold,
        transferred and set over and by these presents does assign, sell transfer
        and
        set over unto said ASSIGNEE
        the entire right, title and interest in and to (a) said Inventions and worldwide
        rights therein; (b)
        said
        Applications, including all divisions, continuations and substitutions thereof;
        and (c) all Patents,
        including United States and Canadian patents which shall have issued on said
        Inventions, including
        all reissues, renewals and extensions thereof, for the United States, its
        territories and possessions
        and all foreign countries, including the right to file corresponding
        applications for Letters Patent
        on
        said Inventions in any and all foreign countries, and to claim priority under
        any and all treaties
        and conventions to which the United States of America and Canada are signatories
        including the Paris Convention for the Protection of Industrial Property
        for
        such corresponding applications, or any
        division, continuation or substitution thereof, the same to be held and enjoyed
        by said ASSIGNEE, its
        assigns and successors, as fully and entirely as the same would have been
        held
        and enjoyed by ASSIGNOR,
        had this assignment not been made.

      

      ASSIGNOR
        hereby authorizes and requests that all Letters Patent based on said
        Applications and each division, continuation, substitution, reissue, renewal
        and
        extension thereof be issued to said ASSIGNEE,
        its successors and assigns.

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      The
        terms
        and conditions of this Assignment shall inure to the benefit of ASSIGNEE,
        its
successors,
        assigns and other legal representatives, and shall be binding upon ASSIGNOR,
        its
successor,
        assigns and other legal representatives.

       

      [Signature
        page follows]

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      IN
        WITNESS WHEREOF, this Assignment has been duly executed on the date as indicated
        below.

      

      

      
        	 	
                ASSIGNOR:

              
	 	 	 
	 	
                HWCES
                  INTERNATIONAL 

              
	 	 	 
	 	 	 
	 	
                By: 

              	/s/
                Don B. Cobb
	 	
                Name: 

              	Don B.
                Cobb
	 	
                Title: 

              	President
	 	 	 
	 	
                Date: 

              	
                June
                  27th, 2006 

              

      

       

      
        	
                STATE
                  OF TEXAS 

              	
                § 

              

      

      
        	 	
                § 

              

      

      
        	
                COUNTY
                  OF HARRIS

              	
                §

              

      

      

      On
        the
        above date, the above named person acting in the capacity of President
of
        HWCES
International,
        appeared before me, and known by me to be the same person described in and
        who
executed
        the foregoing instrument, and acknowledged that he executed the same, of
        his own
        free will and
        with
        the authority and for the purposes set forth.

       

      
        	 	/s/
                Stefanie B. Ford	 
	 	
                Notary
                  Public in and for 

              	 
	 	
                THE
                  STATE OF TEXAS 

              	 
	 	 	 	 
	 	
                ASSIGNEE: 

              	 
	 	 	 	 
	 	
                OIL
                  STATES ENERGY SERVICES, INC. 

              	 
	 	
                By: 

              	/s/
                Larry B. Wolod	 
	 	
                Name: 

              	
                Larry
                  B. Wolod 

              	 
	 	
                Title: 

              	
                Vice
                  President and Assistant Secretary 

              	 
	 	
                Date: 

              	
                May
                  12,
                  2006

              	
                  

              

      

       

      
        	
                STATE
                  OF TEXAS 

              	
                § 

              

      

      
        	 	 	
                §

              

      

      
        	
                COUNTY
                  OF HARRIS 

              	
                §

              

      

       

      On
        the
        above date, the above named person acting in the capacity of Vice President
        and
Assistant
        Secretary of Oil States Energy Services, Inc., personally appeared before
        me,
        and known by me
        to be
        the same person described in and who executed the foregoing instrument, and
        acknowledged that he executed the same, of his own free will and with the
        authority and for the purposes set forth.

      

      
        	 	/s/
                Linda Deleon
	 	
                Notary
                  Public in and for 

              
	 	
                THE
                  STATE OF TEXAS 

              

      

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

      SCHEDULE
        A

      

      CANADIAN
        PATENT APPLICATIONS

       

      
        
          	
                  Application
                    No. 

                	
                  Filing
                    Date

                	
                  Title 

                
	
                  2,512,128 

                	
                  July
                    14, 2005 

                	
                  High
                    Pressure Threaded Union With Metal-To-Metal Seal, And Metal
                    Ring Gasket For Same 

                
	
                  2,512,263 

                	
                  July
                    15, 2005 

                	
                  Cup
                    Tool For A High Pressure Mandrel And Method Of Using Same 

                
	
                  2,512,264 

                	
                  July
                    15, 2005 

                	
                  Slip
                    Spool Assembly And Method Of Using Same 

                

        

         

      

      U.S.
        PATENTS

      

        
          	
                  Patent
                    No. 

                	
                  Issue
                    Date 

                	
                  Title 

                
	
                  5,012,865 

                	
                  May
                    7, 1991 

                	
                  Annular
                    and Concentric Flow Wellhead Isolation Tool 

                
	
                  5,261,487 

                	
                  November
                    16, 1993 

                	
                  Packoff
                    Nipple 

                
	
                  5,285,852 

                	
                  February
                    15, 1994 

                	
                  Wellhead
                    Isolation Tool and Method of Use Thereof 

                
	
                  5,396,956 

                	
                  March
                    14, 1995 

                	
                  Wellhead
                    Isolation Tool Sealing Nipple Testing Apparatus And Method of
                    Pressure
                    Testing Isolation Tool
                    Sealing Nipple Seals When in Position On A Well

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00120-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00120-of-00352.parquet"}]]