Exhibit 23.3
Consent of Independent Registered Public Accounting Firm
We consent to the use of our report dated March 17, 2006, included in the Annual Report onForm 10-K of Chaparral Resources, Inc. for the year ended December 31, 2005, with respect to the consolidated financial statements of Chaparral Resources, Inc., incorporated by reference in thisForm 10-K/A.
/s/ Ernst & Young Kazakhstan LLP
Ernst & Young Kazakhstan LLP
June 9, 2006
Almaty, Kazakhstan