Cardero Resource Corp.: Exhibit 4.8 - Filed by newsfilecorp.com





AMENDING AGREEMENT

THIS AMENDING AGREEMENT is made the 14th day of
April, 2011.

BETWEEN:

COALHUNTER MINING CORPORATION,
a company incorporated under the laws 
of the Province of British
Columbia and having its head office at Suite 507, 475 Howe 
Street,
Vancouver, British Columbia, V6C 2B3

(“Coalhunter”)

OF THE FIRST PART

AND:

ALAN A. JOHNSON, a Professional
Geologist and businessperson with an address at 
538 Hawkside Mews N.W.
Calgary, Alberta T3G 3R9

(“Alan Johnson”)

OF THE SECOND PART

WHEREAS Coalhunter and Alan Johnson entered into a Coal
Tenure Option Agreement dated May 18, 2010 (the “Agreement”);

AND WHEREAS the parties wish to amend the Agreement as
set forth herein;

NOW THEREFORE THIS AGREEMENT WITNESSETH THAT in
consideration of the mutual covenants herein contained and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties agree as follows:

	 	1. 	
      All capitalized terms used herein but not defined in this
      Amending Agreement have the meanings ascribed to them in the
    Agreement.

	 	 	 
	 	2. 	
      Section 4.6 of the Agreement is deleted and replaced with
      the following:



“4.6 Share Issuance. On the
Exercise Date, concurrent with the payment of the Second Option Payment, the
Optionee shall issue 500,000 Common Shares to the Optionor (the “Payment
Shares”). If and whenever at any time from the date hereof and prior to the
Exercise Date, there is a consolidation, amalgamation, arrangement or merger of
the Optionee with or into any other body corporate, trust, partnership or other
entity, or a sale or conveyance or transfer of the property and assets of the
Optionee as an entirety or substantially as an entirety to any other body
corporate, trust, partnership or other entity, if the Payment Shares have not
been issued prior to the effective date of such reclassification, redesignation,
change, reorganization, consolidation, amalgamation, arrangement, merger, sale
or conveyance, the Optionor shall be entitled to receive and shall accept in
lieu of the Payment Shares to which it would otherwise have been entitled to
acquire, the number of shares or warrants or other securities or property of the
Optionee or of the body corporate, trust, partnership or other entity
      resulting from such merger, amalgamation, arrangement or consolidation, or
      to which such sale or conveyance may be made, as the case may be, that the
      Optionor would have been entitled to receive on such reclassification,
      redesignation, change, capital reorganization, consolidation,
      amalgamation, arrangement, merger, sale or conveyance, if, on the record
      date or the effective date thereof, as the case may be, the Optionor had
been the registered holder of the Payment Shares.”





	 	3. 	
      This Amending Agreement shall enure to the benefit of
      Coalhunter and Alan Johnson and their respective successors and
      assigns.

	 	 	 
	 	4. 	
      Coalhunter and Alan Johnson hereby confirm that, except
      as set out in this Amending Agreement, the terms and conditions set out in
      the Agreement remain unchanged and in full force and
  effect.



IN WITNESS WHEREOF the parties have executed this Agreement as
of the date first written above.

COALHUNTER MINING CORPORATION

	Per: 	/s/ Michael Hunter 	 
	  	Name 	 
	 	 	 
	  	               
         Michael Hunter 	 
	  	Title President & CEO 	 



	   
                     /s/ Alan
      Johnson 	 
	ALAN A. JOHNSON