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THIS AMENDING AGREEMENTdated June 16, 2004 is between:

BAYSHORE BANK & TRUST (BARBADOS) CORPORATION, 
  AS TRUSTEE OF THE ABUELO TRUST
  ("Abuelo")

AND

WESCORP ENERGY INC.
  ("Wescorp")

WHEREAS:

|A. | Abuelo is the registered and beneficial owner of 50% of the common shares
      in the capital stock of Vasjar Trading Ltd. (the "Corporation");                                                                                                                                        
|-- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  
|B. | Abuelo has agreed to sell to Wescorp 50% of the issued common shares
      in the Corporation (the "Vasjar Shares") and Wescorp wishes to buy the Vasjar
      Shares from Abuelo;                                                                                                      
|  
|C. | Abuelo and Wescorp entered into a share purchase agreement dated January
      14, 2004 (the Purchase Agreement") setting out the terms and conditions
      of the sale of the Vasjar Shares in consideration of the issuance of shares
      of common stock of Wescorp to Abuelo; and
|  
|D. | The parties wish to amend the terms and conditions of the Purchase Agreement
      in respect of the First Tranche of Wescorp Shares.                                                                                                                                                   

NOW THEREFORE THIS AGREEMENT WITNESSES that, in consideration of the mutual covenants, conditions, warranties, and representations set forth in this Amending Agreement, the parties agree as follows:

|1. | All capitalized terms not defined in this Amending Agreement will have
      the meanings ascribed to them in the Purchase Agreement.          
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|  
|2. | The Purchase Agreement is hereby amended by deleting section 3.1 in its
      entirety and substituting in its place the following section 3.1:
|   |                                                                                                                                                
|   | "3.1 First Tranche Transfer.The Parties agree that:                                                                                            

| | a) | On or before April 30, 2004, Wescorp will issue and deliver to Abuelo
      the First Tranche, which 1.2 million Wescorp Shares will be subject to resale
      restrictions pursuant to the United States Securities Actof 1933
      (the "1933 Act") notwithstanding that the definition of "Wescorp Shares"
      requires that the First Tranche be "registered and free trading".                                                                                                                                             
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | b) | On or before June 30, 2004, Abuelo will transfer to Wescorp the undivided
      50% of the Vasjar Shares.                                                                                                                                                                                                                                                                                                                                                                                                                           
|
| | c) | If Wescorp fails to deliver any of the First Tranche to Abuelo on or
      before April 30, 2004, Wescorp will cause to be issued further Wescorp Shares
      to Abuelo representing ten percent (10%) of the Wescorp Shares then due
      and outstanding.                                                                                                                                                                                                                                                                       
|
| | d) | If, on or before the date that is 270 days after April 30, 2004, Abuelo
      receives a bona fide offer from a third party to purchase the First Tranche
      at a price per Wescorp Share equal to or greater than the average closing
      price of the common shares of Wescorp for July 14, 15 and 16, 2004 less
      a discount of 5%, and such the third party purchaser deposits the total
      purchase price in trust with a lawyer, then whether or not Abuelo accepts
      the offer to purchase the First Tranche,

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2

| |    | Wescorp will no longer be obliged to register the First Tranche under
      the 1933 Act, section 3.4 of this Agreement will not apply to the First
      Tranche, and Abuelo will have no right of action for damages or otherwise
      as against Wescorp by reason that the Wescorp Shares comprised in the First
      Tranche were not registered and free trading at the time of issuance and
      delivery to Abuelo.                                                                                                                                                                                                                                                                                                                                                                                   
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| | e) | If, within 270 days of April 30, 2004, Abuelo receives and accepts a
      bona fide offer from a third party to purchase the First Tranche at a price
      per Wescorp Share less than the average closing price of the common shares
      of Wescorp for July 14, 15 and 16, 2004 less a discount of 5%, and such
      purchase and sale of the First Tranche completes, then Wescorp will no longer
      be obliged to register the First Tranche under the 1933 Act, section 3.4
      of this Agreement will not apply to the First Tranche, and Abuelo will have
      no right of action for damages or otherwise as against Wescorp by reason
      that the Wescorp Shares comprised in the First Tranche were not registered
      and free trading at the time of issuance and delivery to Abuelo.
|
| | f) | Wescorp agrees to assist Abuelo in completing the documentation required,
      from time to time, to sell all or any portion of the First Tranche pursuant
      to the 1933 Act, including arranging for an appropriate legal opinion of
      U.S. counsel, if needed, and signing any other documents reasonably necessary
      to facilitate such sale.                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|
| | g) | If neither d) nor e) above occurs and Wescorp does not register the First
      Tranche by filing and clearing a registration statement with the United
      States Securities and Exchange Commission within 270 days of April 30, 2004,
      then Abuelo will have the option and right to terminate this Agreement pursuant
      to section 3.4 hereof."                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|

|3. | All other terms and conditions of the Purchase Agreement will remain
      unchanged and in full force and effect.                                                                                                                                                      
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|4. | This Amending Agreement may be signed by facsimile or original and executed
      in any number of counterparts, and each executed counterpart will be considered
      to be an original. All executed counterparts taken together will constitute
      one agreement.

TO EVIDENCE THEIR AGREEMENT each of the parties has executed this Agreement as of the 16th day of June, 2004.

BAYSHORE BANK & TRUST (BARBADOS) 
  CORPORATION, AS TRUSTEE OF THE 
  ABUELO TRUST 
  By:

|/s/
      Penny Ettinger                             | 
|---------------------------------------------------- | 
|                                                     | 
|Penny Ettinger, 
      Authorized Signatory          | 
|                                                     | 
|WESCORP ENERGY INC.                                  | 
|By:                                                  | 
|                                                     | 
|/s/ Doug Biles                                       | 
|                                                     | 
|Doug Biles 
      President and Authorized Signatory | 

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