Exhibit 23.2

Consent of Independent Registered Chartered Accountants

We consent to the use in this Amendment No. 1 to Form SB-2 on Form S-1 to Registration Statement No. 333-140171 of our report dated March 23, 2007, relating to the consolidated financial statements of Gran Tierra Energy Inc. (which audit report expresses an unqualified opinion on the financial statements and includes Comments by Independent Registered Chartered Accountants on Canada-United States of America Reporting Differences relating to the substantial doubt on the Company’s ability to continue as a going concern), appearing in the Prospectus, which is part of such Registration Statement, and to the reference to us under the heading “Experts”, in such Prospectus.

/s/ Deloitte & Touche LLP

Independent Registered Chartered Accountants
Calgary, Alberta, Canada
April 13, 2007