Document:

Uranium Energy Corp.: Exhibit 10.19 - Filed by newsfilecorp.com

091067 

NOTICE OF CONFIDENTIALITY RIGHTS: IF YOU ARE A NATURAL
PERSON, YOU MAY REMOVE OR STRIKE ANY OF THE FOLLOWING INFORMATION FROM THIS
INSTRUMENT BEFORE IT IS FILED FOR RECORD IN THE PUBLIC RECORDS: YOUR SOCIAL
SECURITY NUMBER OR YOUR DRIVER'S LICENSE NUMBER. 

MEMORANDUM OF SOLUTION MINING LEASE 

	THE STATE OF TEXAS 	§ 
	COUNTY OF DUVAL 	§ 

     THIS AGREEMENT made this 1st day
of September, 2005, by and between Alvaro de Hoyos and Dolores Hyde,
Individually and as Trustees under the Last Will and Testament of Luis de Hoyos,
Deceased, whose mailing address is 22134 Gold Stone, Katy, Texas 77450,
(hereinafter collectively referred to as "Lessor") and Everest Resource Company,
a Texas Corporation, whose mailing address is P. 0. Box 1339, Corpus Christi,
Texas 78403 (hereinafter referred to as "Lessee"), do hereby acknowledge and
give notice that Lessor has entered into an Solution Mining Lease with Lessee,
covering the lands and premises situated in Duval County, Texas, more fully
described as follows: and the parties agree as follows: 

3100.64 acres of land, more or less,
subject to the mineral reservation reserved in the conveyance recorded in Volume
61, Pages 285-289 of the Deed Records of Duval County, Texas, and which lands
are located approximately 4 miles north from Benavides, Texas, and 12 miles S.
W. from San Diego, Texas, and being a portion of the tract of land known as the
Palangana Pasture in said Duval County, Texas, allotted to Mrs. Lizzie Singer
under the terms of the Last Will and Testament of Mrs. Anna Collins, Deceased,
and decree of the District Court of Nueces County, Texas, and being Share 4 of
Parcel F, First, and Parcel F, Second, and which decree is of record in Volume
Z, Page 314 et seq., of the Deed Records of Duval County, Texas, and described
by the metes and bounds contained therein. 

     It is expressly provided that
this Lease covers only the uranium, thorium, molybdenum, vanadium, and all other
fissionable materials, together with all minerals, metals, materials, elements,
compounds, solutions and mixtures which are necessarily produced in solution
with, and incidental to, the production of the above-named substances in and
under said lands above described. 

     Said Solution Mining Lease is
effective September 1st, 2005 and provides for a primary term of five (5) years,
subject to all of the terms, conditions and provisions as set out in said
Solution Mining Lease. The original of such Solution Mining Lease is in the
office of the Lessee, where it is open to examination and investigation by
interested parties during reasonable business hours.

1 

     This notice is given to place
every person on notice of the existence of said Solution Mining Lease, and all
of the terms, provisions and conditions thereof; and this notice is given in
lieu of filing the original of such Solution Mining Lease for record in Duval
County, Texas. 

     EXECUTED IN DUPLICATE ORIGINALS
this the seventh day of November , 2005. 

	 	LESSOR: 
	 	  
	 	  
	 	  
	 	“Alvaro de Hoyos”
	 	Alvaro de Hoyos, Individually and as Trustee
      under 
	 	the Last Will and Testament of Luis de Hoyos,
    
	 	Deceased 
	 	  
	 	  
	 	  
	 	 
	 	Dolores Hyde, Individually and as Trustee under
    
	 	the Last Will and Testament of Luis de Hoyos,
    
	 	Deceased 
	 	  
	 	  
	 	  
	 	LESSEE: 
	 	  
	 	EVEREST RESOURCE COMPANY 
	 	  
	 	  
	By: 	
      “Tom M. Crain”

	 	Tom M. Crain, Jr. 
	 	Vice President 

2 

	THE STATE OF TEXAS 	§ 
	COUNTY OF HARRIS 	§ 

THIS instrument was acknowledged before me on this the 07 day
of NOV, 2005 by Alvaro de Hoyos, Individually and as Trustee under
the Last Will of Luis de Hoyos, Deceased, on behalf of himself and said Trust.

	 	“Farad
      B. Fareed” 
	 	Notary Public, State of Texas 
	 	My Comission Expires: March 3, 2009
  
	 	
      “Fahad Fareed” 

	 	NAME OF NOTARY PUBLIC 

	THE STATE OF 	§ 
	COUNTY OF 	§ 

     THIS instrument was acknowledged
before me on this the day of __________________, 2005 by Dolores Hyde,
Individually and as Trustee under the Last Will and Testament of Luis de Hoyos,
Deceased, on behalf of herself and said Trust. 

	 	 
	 	Notary Public, State of 	 
	 	My Commission Expires: 	 
	 	 
    
	 	NAME OF NOTARY PUBLIC

3 

	THE STATE OF TEXAS 	§ 
	COUNTY OF NUECES 	§ 

     THIS instrument was acknowledged
before me on this the 14 day of November, 2005, by Torn M. Crain ,
Jr. Vice President of EVEREST RESOURCE COMPANY, a Texas corporation, on
behalf of said corporation. 

	 	“Karen
      L. Paige” 
	 	Notary Public, State of Texas 
	 	My Comission Expires: 03-02-2007 
	 	“Karen
      L. Paige” 
	 	NAME OF NOTARY PUBLIC 

4 

091067 

	REG. 	✓ D 	FILED FOR RECORD 
	IND. D.  	✓	2005 NOV 15 PM 2: 07 
	FL 	✓	OSCAR GARCIA. JR. 
	  	  	COUNTY CLERK DUVALCOUNTY 
	COM. 	✓	  
	C.O. 	✓	BY: Rosalinda G. Scales 
	  	  	DEPUTY 

	$27.00 	
	Pd. 	
	 	  
	2 	Return to & Filed by: 
	 	Everest Resource Co. 
	 	P.O. Box 1339 
	 	C.C. Tx. 78403 
	 	Attn: Karen L. Paige 

	STATE OF TEXAS 	           
               COUNTY OF DUVAL 	 
	  	  	 
	I hereby certify that this instrument was filed
      on the date 	 
	and time stamped hereon by me and was duly
      recorded 	 
	in the OFFICIAL RECORDS of Duval County, Texas.
    	 
	  	  	 
	             
                         
           VOL. 408 PAGE 419-423 	 
	  	  	 
	  	NOVEMBER 16, 2005 	 
	  	Recording Date 	 
	  	  	 
	  	“Oscar Garcia, Jr.” 	 
	  	County Clerk Duval CountyUranium Energy Corp.: Exhibit 10.20 - Filed by newsfilecorp.com

NOTICE OF CONFIDENTIALITY RIGHTS: IF YOU ARE A NATURAL
PERSON, YOU MAY REMOVE OR STRIKE ANY OF THE FOLLOWING INFORMATION FROM THIS
INSTRUMENT BEFORE IT IS FILED FOR RECORD IN THE PUBLIC RECORDS: YOUR SOCIAL
SECURITY NUMBER OR YOUR DRIVER'S LICENSE NUMBER.

MEMORANDUM OF REPLACEMENT IN-SITU
URANIUM, “SOLUTION MINING LEASE” 

	THE STATE OF TEXAS 	)( 
	COUNTY OF DUVAL 	)( 

     THIS AGREEMENT made effective the
14th day of January, 2005, by and between Zulema DeHoyos who is the
same person also known as Zulema DeHoyos Estrada, Individually and as Executrix
of the Estate of Zulema G. DeHoyos, Deceased, whose mailing address is 202 S.
Bexar Street, San Diego, Texas 78384, (hereinafter collectively referred to as
"Lessor") and South Texas Mining Venture, L.L.P., successor by merger to Everest
Resource Company, a Texas Corporation, whose mailing address is PO Box 2955,
Corpus Christi, Texas 78403 (hereinafter referred to as "Lessee"), do hereby
acknowledge and give notice that Lessor has entered into an Solution Mining
Lease with Lessee, covering the lands and premises situated in Duval County,
Texas, more fully described as follows: 

3100.64 acres of land, more or less,
subject to the mineral reservation reserved in the conveyance recorded in Volume
61, Pages 285-289 of the Deed Records of Duval County, Texas, and which lands
are located approximately 4 miles north from Benavides, Texas, and 12 miles S.
W. from San Diego, Texas, and being a portion of the tract of land known as the
Palangana Pasture in said Duval County, Texas, allotted to Mrs. Lizzie Singer
under the terms of the Last Will and Testament of Mrs. Anna Collins, Deceased,
and decree of the District Court of Nueces County, Texas, and being Share 4 of
Parcel F, First, and Parcel F, Second, and which decree is of record in Volume
Z, Page 314 et seq., of the Deed Records of Duval County, Texas, and described
by the metes and bounds contained therein. 

     It is expressly provided that
this Lease covers only the uranium, thorium, molybdenum, vanadium, and all other
fissionable materials, together with all minerals, metals, materials, elements,
compounds, solutions and mixtures which are necessarily produced in solution
with, and incidental to, the production of the above-named substances in and
under said lands above described. 

     Said Solution Mining Lease is
effective January 14, 2005 and provides for a primary term of five (5) years,
subject to all of the terms, conditions and provisions as set out in said
Solution Mining Lease. The original of such Solution Mining Lease is in the office of the Lessee, where it is open
to examination and investigation by interested parties during reasonable
business hours. 

     The Solution Mining Lease
replaces, supercedes and takes the place of that certain In-Situ Uranium Mining
Lease dated January 14, 2005, recorded in Volume 397 at Page 586 of the Official
Records of Duval County, Texas, and all the terms of this new lease shall be in
force and effect effective with recording the same of record in Duval County,
Texas. 

     This notice is given to place
every person on notice of the existence of said Solution Mining Lease, and all
of the terms, provisions and conditions thereof; and this notice is given in
lieu of filing the original of such Solution Mining Lease for record in Duval
County, Texas. 

EXECUTED IN DUPLICATE ORIGINALS this the 11th
day of July, 2008 

	LESSOR: 	 
	  	 
	 “Zulema
      DeHoyos” 	 
	Zulema DeHoyos Estrada, aka Zulema DeHoyos, 	 
	Individually and as Executrix of the 	 
	Estate of Zulema G. DeHoyos, Deceased 	 

	 	
      LESSEE: South Texas Mining Venture, L.L.P.
  

	 	
       
	
       

	 	
      By: 
	
      URN South Texas Project, Ltd, 

	 	
       
	
      Its General Partner 

	 	
      By: 
	
      “Dennis E. Stover” 

	 	
       
	
      Dennis E. Stover, President 

	 	
       
	
       

	 	
       
	
       

	 	
      By: 
	
      Everest Exploration, Inc. 

	 	
       
	
      Its General Partner 

	 	
      By: 
	
      “James T. Clark” 

	 	
      Name:
	
      James T. Clark 

	 	
      Title: 
	
      President 

ACKNOWLEDGMENTS 

	STATE OF TEXAS 
	COUNTY OF 

     This instrument was acknowledged
before me on this 11th day of June July, 2008, by
Zulema DeHoyos Estrada, aka Zulema DeHoyos, Individually and as Executrix of the
Estate of Zulema G. DeHoyos, Deceased. 

	 	
      “Evilia Casas” 

	 	Notary Public, State of Texas

	STATE OF 
	COUNTY OF 

     This instrument was acknowledged
before me on the 28th day of July, 2008, by Dennis E.
Stover, President of URN Texas GP, LLC, in its capacity as general
partner of URN South Texas Project, Ltd, in its capacity as general partner of
South Texas Mining Venture, L.L.P. a Texas limited partnership, on behalf of
said partnership.

	 	 “Kay M. Walker” 
	 	Notary Public, State of

	STATE OF TEXAS 
	COUNTY OF NUECES 

     This instrument was acknowledged
before me on the 18th day of July, 2008, by James T. Clark,
President of Everest Exploration, Inc., in its capacity as general
partner of South Texas Mining Venture, L.L.P. a Texas limited partnership, on
behalf of said partnership.

	 	 “Kathie Calderon” 
	 	Notary Public, State of Texas

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