Document:

EXHIBIT 10.6

$2,200,000.00                 PROMISSORY NOTE                  December 13, 2007

         FOR VALUE RECEIVED, the undersigned,  Amen Minerals,  L.P. (hereinafter
called  "Maker"),  promises  to pay to the  order of  Softvest,  LP, at 400 Pine
Street,  Suite 1010,  Abilene,  Texas 79601 ("Payee"),  the principal sum of Two
Million Two Hundred Thousand and No/100 Dollars  ($2,200,000.00)  or such lesser
amount as may be  advanced  under  this Note in coin or  currency  of the United
States of America,  together with  interest  thereon from and after the maturity
date hereof  until paid in full at an annual rate of eight and one half  percent
(8.5%),  provided  that the interest rate or amount shall not exceed the maximum
rate and amount of nonusurious  interest allowed from time to time by applicable
law (the "Highest Lawful Rate").  No interest shall accrue on this Note if it is
paid on or prior to the maturity date.

         Advances  may be made under this Note upon request by Maker to Payee up
to the face amount of this Note.  This Note does not represent a revolving  line
of credit and the aggregate  amount of all advances  hereunder  shall not exceed
Two  Million  Two  Hundred   Thousand   and  No/100   Dollars   ($2,200,000.00),
notwithstanding any repayment of outstanding principal.  The total amount of all
advances,  less  any  principal  payments,   shall  constitute  the  outstanding
principal balance of this Note at any given point in time.

         This Note is payable on December  31, 2007,  the maturity  date of this
Note, when all outstanding  principal and accrued but unpaid interest under this
Note  shall be due and  payable.  Maker may  prepay  all or any  portion  of the
outstanding  principal  balance  at any  time,  and from  time to time,  without
penalty  or fee.  Any  prepayment  will be applied  first to accrued  and unpaid
interest, if any, and the balance to principal.

         Upon the  occurrence  of an Event of Default (as  hereinafter  defined)
Payee  shall  have  all  rights  and  remedies  available  hereunder  and  under
applicable law.

         Maker,  as well as any persons or entities  which become liable for the
payment of this Note,  hereby  expressly  (a) consents to any the release of any
party  primarily or  secondarily  liable  hereon;  (b) waives notice of default,
notice of intent to accelerate,  notice of acceleration,  demand and any and all
other notices with respect to this Note;  and (c) agrees that (i) the acceptance
of late  payment(s)  hereunder by Payee  hereof,  (ii) waiver of any event(s) of
default  hereunder  and/or any instrument  securing or guaranteeing  the payment
hereof or (iii) other forgiveness of any other defaults by the Maker,  shall not
constitute  a waiver  by the  Payee  hereof  of any  subsequent  defaults,  late
payments or other  violations  of Maker's  obligations  hereunder  and/or in the
terms of any instrument securing or guaranteeing the payment hereof.

         As used in this  Note,  an "Event of  Default"  shall be deemed to have
occurred  upon  the  occurrence  of any of the  following  events:  (i) when any
payment of principal or interest is not made when due,  (ii) upon the failure of
Maker to perform any covenant, agreement or obligation contained in this Note or
in any security document executed in connection herewith, (iii) upon any default
or event of default under any security document executed in connection herewith,
(iv) upon the  dissolution,  insolvency or business failure of the Maker, or the
appointment  of a receiver for all or a part of Maker's  property,  and (v) upon
the assignment for the benefit of Maker's creditors or a calling of a meeting of
creditors of Maker, or upon commencement of any proceeding under any bankruptcy,
insolvency or other debtor relief laws by or against Maker.

         If this Note is placed in the hands of any attorney for collection,  or
suit  is  filed  hereon,  or  proceedings  are  made  in  probate,   bankruptcy,
receivership,  arrangement  or otherwise for collection  hereof,  Maker and each
endorser,  guarantor and surety liable upon or for payment of this Note agree to

                                       1
<PAGE>

pay all reasonable  expenses and costs incurred by Payee in connection with such
collection,  suit  or  proceedings,  including  without  limitation,  reasonable
attorney's fees.

         All  agreements  between the Maker and Payee,  whether now  existing or
hereafter  arising and whether written or oral, are hereby limited so that in no
contingency  shall the  interest  paid or agreed to be paid to Payee  exceed the
maximum  amount  permitted  under  applicable  law. If,  under any  circumstance
whatsoever,  interest would otherwise be payable to Payee at a rate in excess of
the Highest Lawful Rate, then the interest  payable to Payee shall be reduced to
the maximum amount permitted under applicable law, and if under any circumstance
whatsoever  Payee  shall ever  receive  anything  of value  deemed  interest  by
applicable law which would exceed  interest at the Highest Lawful Rate, then any
excessive  interest  paid  shall be applied to the  reduction  of the  principal
amount  hereunder and not to the payment of interest or if such excess  interest
exceeds the unpaid  principal  balance hereof,  such excess shall be refunded to
Maker.  All  interest  paid or agreed to be paid to Payee  shall,  to the extent
permitted  by  applicable  law, be  amortized,  prorated,  allocated  and spread
throughout  the full period until  payment in full of the principal of this Note
so that the rate of interest hereon is uniform throughout the term hereof.  This
paragraph shall control all agreements between the Maker and the Payee.

         THIS NOTE SHALL BE CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE STATE
OF TEXAS EXCEPT FOR CONFLICTS OF LAWS PRINCIPLES  WHICH WOULD RESULT IN THE LAWS
OF ANOTHER JURISDICTION TO APPLY.

         THIS NOTE AND ANY SECURITY DOCUMENTS RELATED HERETO REPRESENT THE FINAL
AGREEMENT  BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS  OR  SUBSEQUENT  ORAL  AGREEMENTS  OF THE PARTIES.  THERE ARE NO
UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

         IN WITNESS WHEREOF,  Maker has executed this Note as of the 13th day of
December, 2007.

                                 AMEN MINERALS, L.P.

                                 By:  AMEN PROPERTIES, INC., its general partner

                                 By:
                                    --------------------------------------------
                                 Printed Name:
                                              ----------------------------------
                                 Title:
                                       -----------------------------------------

                                 Address:

                                 303 W. Wall Street, Suite 2300
                                 Midland, Texas 79701

                                       2a5570624ex1099a.htm

    Exhibit
      10.99(a)

     

    December
      12, 2007

    

    

    Ocimum
      Biosolutions Inc.

    #8765
      Guion Road, Suite #G

    Indianapolis,
      Indiana 46268

    Attention:
      Subash Lingareddy

    

    O3
      Capital
      Advisors Pvt. Ltd.

    #3
      Levelle
      Road,

    Bangalore
      560 001, India

    Attention:  Shiraz
      Bugwadia

    

    
      	
               

            	
              RE:

            	
              Amendment
                to the Asset Purchase Agreement (the
                “APA”) by and between Gene
                Logic
                Inc., a Delaware corporation
                (“Company”),
                Ocimum Biosolutions Limited, a company incorporated under the Company
                Act,
                1956 in the Republic of India
                (“Parent”), and Ocimum
                Biosolutions Inc., a Delaware corporation
                (“Purchaser”)

            

    

    

    Gentlemen:

    

    In
      connection with the change in
      circumstances of Company, Parent and Purchaser since the time of the execution
      of the APA, the Parties wish to, and hereby do, amend the APA as provided
      below.  Capitalized terms used herein, but not otherwise defined
      herein, shall have the meanings given to such terms in the APA.

     

    
      	
               

            	
              1.

            	
              The
                term “Parent” shall refer to Ocimum Biosolutions (India) Limited, a
                company incorporated under the Company Act, 1956 in the Republic
                of
                India.

            

    

     

    
      	
               

            	
              2.

            	
              Any
                cash, cash equivalent or other payment (the “Customer 1 or Customer 2
                Payments”) made by Customer 1 and Customer 2 (as defined on Exhibit
                A hereto) to the Company, and received by the Company, on or after
                December 6, 2007, for perpetual database licenses granted pursuant
                to
                license agreements  entered into by and between Company and
                Customer 1 or Company and Customer 2 on or after December 6, 2007
                but
                prior to the Closing Date or, in the case of Customer 2 only, subsequent
                to the Closing Date but prior to December 31, 2007 (the “Perpetual
                Licenses”) shall be included in the term “Acquired Assets” for
                purposes of the APA and all right, title and interest therein shall
                therefore be transferred and assigned by Company to Purchaser as
                of the
                Effective Time in connection with the Closing.  Further any and
                all obligations of Company pursuant to the Perpetual Licenses shall
                be
                included in the term “Assumed Liabilities” for purposes of the APA and
                shall therefore be transferred by Company to Purchaser and Purchaser
                shall
                assume any and all obligations thereunder.  In the event that
                the Company (i) receives the Customer 1 or Customer 2 Payments or
                (ii)
                receives any monies erroneously sent by Customer 1 or Customer 2
                and which
                relate to a Perpetual License between Purchaser and Customer 1 or
                Customer
                2 which relate to periods from and after the Effective Time, such
                amounts
                shall be transferred to Purchaser within five (5) Business Days of
                the
                later of Closing and the receipt by the Company of such Customer
                1 or
                Customer 2 Payments.

            

    

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    
      	
               

            	
              3.

            	
              Notwithstanding
                the calculation provided for in Section 1.03(c)(i) of the APA, the
                Company, Parent and Purchaser hereby agree that for purposes of the
                APA
                that the Net Current Assets Adjustment shall be deemed to be equal
                to zero
                dollars ($0.00).

            

    

     

    
      	
               

            	
              4.

            	
              The
                Parties agree that the APA is hereby amended such that any reimbursement
                or payment provided to be due and payable pursuant to Section 9.01
                of the
                APA prior to the date that the Purchase Price Adjustment becomes
                due and
                payable pursuant to Section 1.03(c) of the APA (the “Purchase Price
                Adjustment Payment Date”) shall not be due and payable until the
                Purchase Price Adjustment Payment Date; provided, that the amount
                that shall be due and payable at such time shall include all amounts
                due
                and payable as of the Purchase Price Adjustment Date pursuant to
                Section
                9.01 of the APA and any and all other amounts then due pursuant to
                the
                APA.  Notwithstanding the previous sentence, any payments that
                become due and payable pursuant to Section 9.01 of the APA after
                the
                Purchase Price Adjustment Date shall continue to be due and payable
                in
                accordance with Section 9.01 of the
                APA.

            

    

     

    
      	
               

            	
              5.

            	
              The
                Parties hereby agree that any payroll expenses paid by Company to
                the
                Business Employees in respect of time periods from and after the
                Closing
                Date shall be the responsibility of Purchaser and such expenses shall
                be
                due and payable from Purchaser or Parent to the Company as of the
                Purchase
                Price Adjustment Payment Date.  Any other payments due between
                the Parties pursuant to Section 4.08 of the APA shall also be due
                and
                payable on the Purchase Price Adjustment Payment
                Date.

            

    

     

    
      	
               

            	
              6.

            	
              The
                Parties hereby agree that the Company shall reimburse Purchaser for
                its
                actual costs incurred pursuant to the Licensor 1 (as defined on Exhibit
                A hereto) database license with respect to the period from April
                1,
                2007 through the day prior to the Closing Date and such expenses
                shall be
                due and payable from Company to Purchaser as of the Purchase Price
                Adjustment Payment Date.

            

    

     

    
      	
               

            	
              7.

            	
              The
                Parties hereby agree that Section 9.02(a) of the APA is hereby deleted
                and
                replaced with the following:

            

    

     

    “(a)
      If at
      any time prior to satisfaction of the Promissory Note, the Purchaser delivers
      a
      Backstop Letter of Credit consistent with the terms provided for in Section
      1.03(b)(iii)(Y), then Company shall release the Guarantee and the Security
      Agreement delivered pursuant to Section 1.03(b)(iii)(X).”

     

    
      	
               

            	
              8.

            	
              Except
                as expressly amended herein, the APA shall remain otherwise unamended
                and
                in full force and effect.

            

    

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    
      	
               

            	
              9.

            	
              The
                Parties hereby agree that the following exhibits to the APA are hereby
                replaced with the exhibits attached hereto with the same
                names:

            

    

     

    
      	
               

            	
              ·

            	
              Exhibit
                1.03(b)(ii)– Form of Promissory
                Note

            

    

     

    
      	
               

            	
              ·

            	
              Exhibit
                1.06(a)(x)– Form of Diagnostic Development MSA
                Agreement

            

    

     

    
      	
               

            	
              ·

            	
              Exhibit
                1.06(a)(xi)– Form of Transition Services
                Agreement

            

    

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    Please
      acknowledge your agreement to the terms set forth in this letter agreement
      amending the APA by executing this letter and returning a copy to me not later
      than December 12, 2007.

     

    

    Regards,

    

    GENE
      LOGIC
      INC. (Company):

    
      
        	
                By:
                  /s/
                  Charles L. Dimmler

              
	
                     Charles
                  L. Dimmler, III, Chief Executive

              	 	 	 
	
                 Officer
                  and President

              	 	 	 
	 	 	 	 
	 	 	 	 
	 	 	 	 
	
                Acknowledged
                  and Accepted by:

              	 	 	 
	 	 	 	 
	 	 	 	 
	
                OCIMUM
                  BIOSOLUTIONS (INDIA) LIMITED

              	 	 	 
	
                (Parent):

              	 	 	 
	 	 	 	 
	 	 	 	 
	
                By:  /s/
                  L.V. Subash

              
	
                 
                  Subash Lingareddy, President and Chief

              	 	 	 
	
                 
                  Financial Officer

              	 	 	 
	 	 	 	 
	 	 	 	 
	
                OCIMUM
                  BIOSOLUTIONS INC.

              	 	 	 
	
                (Purchaser):

              	 	 	 
	 	 	 	 
	 	 	 	 
	
                By:  /s/
                  L.V. Subash

              
	
                  
                  Subash Lingareddy, President and Chief

              	 	 	 
	
                  
                  Financial Officer

              	 	 	 

      

    

     

    Date:
      December 12, 2007

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00134-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00134-of-00352.parquet"}]]