Document:

Reporting Period

    Exhibit
      10.2

    

    BINDING
      LETTER OF INTENT TO PURCHASE PROPERTIES

    

    January
      28, 2007

    

    Tatonka
      Oil & Gas, Inc.

    1515
      Arapaho Street

    Tower
      1,
      1oth Floor

    Denver,
      CO 80202

    

    Re:        
      Seer
      Energy, LLC

    SW
      Lance Creek and Lateral Pond Properties

    

    Gentlemen:

    

    This
      letter, upon execution, will evidence the agreement of Seer Energy, LLC (“Seer”)
      and Tatonka Oil & Gas, Inc. (“Tatonka”) relative to the sale and acquisition
      of all of Seer’s oil and gas interests in the SW Lance Creek and Lateral Pond
      Properties (“the Assets” or “the Properties”), more particularly described in
“Exhibit A” and “Exhibit B” attached hereto. The Effective Date of the transfer
      of the Assets shall be January 1, 2007, at 7:00 a.m.. In connection with this
      agreement, the parties recognize the following facts:

    

    1. Seer
      is
      purchasing the Assets from the Trustee of the Chapter 7 bankruptcy estate of
      Stone & Wolf; LLC (“the Stone & Wolf Transaction”), and, upon the
      closing thereof, desires to sell the Assets to Tatonka pursuant to the terms
      of
      this agreement.

    

    2. Tatonka
      has conducted an independent investigation of the nature and extent of the
      Assets and desires to purchase the Assets pursuant to the terms of this
      agreement

    

    3. The
      approximate company net acres for the Lateral Pond Properties equals 3,441.22,
      more or less, and the approximate company net acres for the SW Lance Creek
      Properties is 3,406.01, more or less,

    

    4. The
      average company net revenue interest (“NRI”) in the Assets equals at least 80%.
      The parties understand that the NRI in the Bishop l0-5H well is 79.91% and
      the
      SS 10-5B well is 79.5%.

    

    5. All
      applicable delay rentals are paid to date.

    

    6. There
      are
      approximately eight (8) miles of pipeline on the Properties, more or
      less.

    

    In
      recognition of the above, Seer has agreed to sell and Tatonka has agreed to
      buy
      the Assets, all subject to the following terms and conditions:

    

    	1.  	
            The
              purchase price for the Assets is $1,960,000.00 (“the Purchase Price”),
              payable as follows:

          

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    BINDING
      LETTER OF INTENT TO PURCHASE PROPERTIES

    Page
      2 of 2

    

    
      	 	
              A.

            	
              Deposit.
                Within
                thirty (30) days after this agreement is executed, Tatonka shall
                deliver
                to Seer a deposit of $l96,000.00 (10% of the Purchase Price) (“the
                Deposit”). The Deposit shall be credited to the Purchase Price at closing,
                or if this agreement does not close on or before July 25, 2007, or
                at a
                later date mutually agreed upon by the parties, (1) and the Stone
&
                Waif Transaction does not close and Seer is therefore unable to deliver
                the Assets, and Tatonka is in compliance hereunder, Seer shall return
                the
                Deposit to Tatonka and Tatonka shall waive all other legal and/or
                equitable remedies for Seer’s default; or (ii) and Tatonka is in default
                hereunder and Seer is in compliance hereunder, Seer shall be entitled
                to
                keep the Deposit as liquidated damages and Seer shall waive all other
                legal and/or equitable remedies for Tatonka’s
                default.

            

    

    

    
      	 	
              B.

            	
              Final
                Payment.
                On
                or before July 25, 2007, Tatonka shall deliver to Seer the remaining
                $l,764,00.00 of the Purchase Price.

            

    

    

    
      	
              2.

            	
              Upon
                deposit of the full Purchase Price, Seer shall execute, acknowledge
                and
                deliver to Tatonka an Assignment, Bill of Sale and Conveyance to
                Tatonka
                conveying the Assets with no representations of warranties, express,
                implied or statutory, expect warranty of title by, through and under
                Seer,
                but not otherwise. In addition, Seer shall deliver to Tatonka such
                other
                assignments, bills of sale, or deeds necessary to transfer the Assets
                to
                Tatonka, including any conveyances on official Items and related
                documentation necessary to transfer the Assets to Buyer in accordance
                with
                requirements of governmental
                regulations.

            

    

    

    If
      the
      foregoing accurately sets forth your understanding of our agreement, please
      designate your acceptance by signing in the space provided below. Thank you
      for
      your immediate attention to this matter.

    

    

    Sincerely,

    

    

    SEER
      ENERGY, LLC

    

    Craig
      Onodera

    Managing
      Member

     

    
 

    Agreed
      and accepted this 29
      day of
      January, 2007.

    

    TATONKA
      OIL & GAS, INC.

    

    /s/
      SOTHI
      THILLAIRAJAH

    
      
        

      

    

    By:
      Sothi
      Thillairajah

    Title:
      Chief Financial OfficerUnassociated Document

     

    Exhibit
      10.1

     

    OFFICE
      LEASE AGREEMENT

     

    AMENDMENT
      NO.1 

     

    OFFICE
      LEASE AGREEMENT AMENDMENT NO.
      1 (the
      “Amendment”),
      dated
      as of November 1, 2006 (the “Effective
      Date”),
      by
      and among Genex Technologies, Incorporated (“Genex”),
      a
      Maryland corporation, Technest Holdings, Inc. (“Technest”),
      a
      Nevada corporation and Motor City Drive, LLC, a Maryland limited liability
      corporation (“Motor
      City”).

     

     

    WITNESSETH
      THAT

     

    WHEREAS,
      on
      December 20, 2005, Genex, Motor City and E-OIR Technologies, Inc. (“EOIR”)
      entered into an Office Lease Agreement (the “Lease”)
      whereby Genex leased a portion of the office space located at 10411
      Motor City Drive, Bethesda, Maryland, 20817
      from
      Motor City; and

     

    WHEREAS,
      Genex
      and EOIR desire that Technest be added as an additional tenant to the Lease,
      as
      that term is defined in the Lease;

     

    THEREFORE,
      in
      consideration of the premises, the mutual agreements set forth below and other
      good and valuable consideration, the receipt and adequacy of which are hereby
      acknowledged, the parties agree as follows:

     

    1.    The
      preamble to the lease shall be and hereby is amended such that it shall be
      and
      read in its entirety:

     

    THIS
      LEASE made and entered into as of this 20th day of December, 2005 by and between
      MOTOR
      CITY DRIVE, LLC,
      a
      Maryland Limited Liability Company and owner of the real property and the
      Building situated thereon located at 10411 Motor City Drive, Bethesda, Maryland,
      20817, called "LANDLORD" and Genex
      Technologies, Inc,
      a
      Maryland corporation and Technest
      Holdings, Inc.,
      a
      Nevada corporation, collectively called "TENANT".

     

    2.    Pursuant
      to this Amendment, the signage in the lobby of 10411 Motor City Drive, Bethesda,
      Maryland, 20817 for Suite 650 currently showing “Genex Technologies, Inc.”
should be revised to only show “Technest Holdings, Inc.”

     

    3.    Other
      than the changes set forth herein, the Office Lease Agreement remains in full
      force and effect.

     

    4.    The
      parties acknowledge that each has read this Amendment, understands it, and
      agrees to be bound by its terms and conditions. Further, the parties agree
      that
      the Office Lease Agreement dated December 20, 2005, as amended by this
      Amendment, and any exhibits thereto are the complete and exclusive statement
      of
      the agreement between the parties, which supersedes all proposals and all prior
      agreements, oral or written, and all other communications between the parties
      relating to the subject matter hereof.

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

    ACCEPTED
      AND AGREED:

     

    
      	
              Genex
                Technologies, Inc.

               

            	 	 	Technest
              Holdings, Inc. 
	By:                   
               /s/ Joseph P.
              Mackin                              
              	 	 	By:                     /s/ Joseph
              P.
              Mackin                              
              
	
            	 	 	
            
	Date:                 November
              1,
              2006                                     
              	 	 	Date:                 November
              1,
              2006                                     
              

    

     

    
       

      
        	
                Motor
                  City
                  drive, LLC

                 

              	 	 	E-OIR
                Technologies, Inc.
	By:                   
                 /s/ Arvin
                Malkani        
                                           
                	 	 	By:                     /s/ Joseph
                P.
                Mackin                              
                
	
              	 	 	
              
	Date:                 November
                1,
                2006                                     
                	 	 	Date:                 November
                1,
                2006                                     
                

      

       

    

       

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