Unassociated Document
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-KSB/A

(Mark One)
 
x  
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the fiscal year ended December 31, 2006
 
 
 
 
o
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the transition period from ___________ to ___________    
 
 
Commission File Number: 000-52594
GRAN TIERRA ENERGY INC.
 (f/k/a Goldstrike Inc.)
(Name of Small Business Issuer in Its Charter)
 
Nevada
 
98-0479924
(State or Other Jurisdiction of
(I.R.S. Employer
Incorporation or Organization)
Identification No.)
 
 
300, 611-10TH AVENUE S.W.
CALGARY, ALBERTA
T2R 0B2
CANADA
(Zip Code)
(Address of Principal Executive Offices)
 
   
Issuer’s Telephone Number: (403) 265-3221

Securities registered under Section 12(b) of the Exchange Act: None
 
Securities registered under Section 12(g) of the Exchange Act: Common Stock, par value $0.001

Check whether the issuer is not required to file reports pursuant to Sections 13 or 15(d) of the Exchange Act. o
 
Check whether the issuer: (1) filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act during the past 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Check if there is no disclosure of delinquent filers in response to Item 405 of Regulation S-B contained in this form, and no disclosure will be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-KSB or any amendment to this Form 10-KSB. þ

 Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ
 
The issuer’s revenues for the fiscal year ended December 31, 2006 were $12,072,913.

The aggregate market value, based on the average bid and asked prices on the OTC Bulletin Board on February 28, 2007, of the voting common stock, par value $0.001 per share, held by non-affiliates of the Registrant as of February 28, 2007 was $129 million. The registrant has no non-voting common stock. The determination of aggregate market value includes exchangeable shares held by non-affiliates (described further below). For purposes of the determination of the above stated amount only, all directors, executive officers and 10% or more stockholders of the Registrant are presumed to be affiliates.
 
On February 28, 2007, the total number of outstanding shares of our common stock and outstanding exchangeable shares of Gran Tierra Goldstrike Inc., which are exchangeable into our common stock, was 95,455,765. Of this total, there were outstanding 78,789,104 shares of common stock and 16,666,661 shares of common stock issuable upon the exchange of exchangeable shares. In addition, we had outstanding one share of special voting stock, through which the holders of exchangeable shares may exercise their voting rights with respect to Gran Tierra Energy Inc. The special voting stock generally votes together with the common stock on all matters on which the holders of our common are entitled to vote. The trustee holder of the share of special voting stock has the right to cast a number of votes equal to the number of then outstanding exchangeable shares.

DOCUMENTS INCORPORATED BY REFERENCE

None.

 Transitional Small Business Disclosure Format. Yes  o No x.

 
EXPLANATORY NOTE
 
We are filing this amendment to our Annual Report on Form 10-KSB, originally filed with the Securities and Exchange Commission on March 30, 2007 (the “Form 10-KSB”), solely for the purpose of amending Item 13 and the exhibit index (1) to withdraw Exhibit No. 3.3, entitled Bylaws, as this exhibit is superseded by Exhibit 3.5 hereto (which was Exhibit 3.6 in the Form 10-KSB), (2) to incorporate by reference two additional exhibits, Exhibits 10.48 and 10.49, (3) to incorporate an updated list of subsidiaries in Exhibit 21.1, and (4) adding an asterisk (*) next to the description of Exhibit 10.12 designating it as a management compensatory plan. In addition, since the filing of the Form 10-KSB, Gran Tierra Energy Inc. registered its common stock under Section 12(g) of the Securities Exchange Act of 1934, as reflected on the cover page hereof. This amendment only changes the cover page, Part III, Item 13, and the exhibit index. As a result of this filing, we are also including abbreviated Exhibits 31.1 and 31.2.
 

 
 
PART III

Item 13. Exhibits.

The following exhibits are filed as part of this report:

Exhibit No.
 
Description
 
Reference
2.1
 
Acquisition Agreements
 
See Exhibits 10.1, 10.3, 10.18, 10.46 and 10.47

3.1
 
Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.1 to the Form SB-2, as amended, filed with the Securities and Exchange Commission on December 31, 2003 (File No. 333-111656).
         
3.2
 
Certificate Amending Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.2 to the Form SB-2, as amended, and filed with the Securities and Exchange Commission on December 31, 2003 (File No. 333-111656).
         
3.3
 
Certificate Amending Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.4 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
3.4
 
Certificate of Amendment to Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 1, 2006 (File No. 333-111656).
         
3.5
 
Amended and Restated Bylaws of Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 3.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
4.1
 
Form of Warrant.
 
Incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
         
10.1
 
Share Purchase Agreement by and between Goldstrike Inc. and Gran Tierra Energy Inc. dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.2
 
Form of Registration Rights Agreement by and among Goldstrike Inc. and the purchasers named therein.
 
Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
 

 
10.3
 
Assignment Agreement by and between Goldstrike Inc. and Gran Tierra Goldstrike Inc. dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.4
 
Voting Exchange and Support Agreement by and between Goldstrike, Inc., 1203647 Alberta Inc., Gran Tierra Goldstrike Inc. and Olympia Trust Company dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.5
 
Form of Split Off Agreement by and among Goldstrike Inc., Dr. Yenyou Zheng, Goldstrike Leasco Inc. and Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 10.4 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.6*
 
Employment Agreement between Gran Tierra Energy Inc. and Dana Coffield dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.7*
 
Employment Agreement between Gran Tierra Energy Inc. and James Hart dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.6 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.8*
 
Employment Agreement between Gran Tierra Energy Inc. and Max Wei dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.9*
 
Employment Agreement between Gran Tierra Energy Inc. and Rafael Orunesu dated as of March 1, 2005, as amended.
 
Incorporated by reference to Exhibit 10.8 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
 10.10*
 
Form of Indemnity Agreement.
 
Incorporated by reference to Exhibit 10.9 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.12*
 
2005 Equity Incentive Plan.
 
Incorporated by reference to Exhibit 10.11 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.13
 
Form of Subscription Agreement.
 
Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
         
10.14
 
Details of the Goldstrike Special Voting Share.
 
Incorporated by reference to Exhibit 10.14 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
         
10.15
 
Exchangeable Share Provisions.
 
Incorporated by reference to Exhibit 10.15 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
         
10.16
 
Refinery Contract between Refinor S.A.and Dong Wong Corporation - Golden Oil Corporation.
 
Incorporated by reference to Exhibit 10.16 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
 

 
10.17 
 
Contract between Compañia General de Combustibles S.A. and Gran Tierra Energy Argentina S.A.
 
Incorporated by reference to Exhibit 10.17 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656)
         
10.18
 
Securities Purchase Agreement, dated as of May 25, 2006, by and between Gran Tierra Energy, Inc and Crosby Capital, LLC.
 
Incorporated by reference to Exhibit 10.18 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 1, 2006 (File No. 333-111656).
         
10.20
 
Form of Securities Purchase Agreement, dated as of June 20, 2006, by and among the Company and retail investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.20 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.21
 
Form of Subscription Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and retail investors subscribing for units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.21 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.22
 
Securities Purchase Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and CD Investment Partners, Ltd.
 
Incorporated by reference to Exhibit 10.22 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.23
 
Form of Registration Rights Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and institutional investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.23 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.24
 
Form of Registration Rights Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and retail investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.24 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.25
 
Registration Rights Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and CD Investment Partners, Ltd.
 
Incorporated by reference to Exhibit 10.25 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.26
 
Lock-Up Agreement, dated June 20, 2006, by and among Sanders Morris Harris Inc. and the executive officers and directors of Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 10.26 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.27
 
Registration Rights Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and Crosby Capital, LLC.
 
Incorporated by reference to Exhibit 10.27 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.28
 
Form of Securities Purchase Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.28 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
         
10.29
 
Form of Subscription Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.29 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
 

 
10.30
 
Form of Registration Rights Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.30 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
         
10.31
 
Form of Escrow Agreement.
 
 Incorporated by reference to Exhibit 10.31 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.32
 
Form of Registration Rights Agreement by and among Goldstrike Inc. and the purchasers named therein.
 
 Incorporated by reference to Exhibit 10.32 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.33
 
Form of Subscription Agreement by and among Goldstrike Inc., Gran Tierra Energy, Inc. and the investor identified therein.
 
 Incorporated by reference to Exhibit 10.33 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.34
 
Form of Registration Rights Agreement by and among Gran Tierra Energy, Inc. f/k/a Goldstrike, Inc. and the purchasers named therein.
 
 Incorporated by reference to Exhibit 10.34 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.35
 
Form of Subscription Agreement by and among Gran Tierra Energy, Inc. f/k/a Goldstrike, Inc. and the investor identified therein.
 
 Incorporated by reference to Exhibit 10.35 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.36*
 
Executive Employment Agreement dated December 1, 2006, by and between Gran Tierra Energy Inc. and Martin H. Eden.
 
Incorporated by reference to Exhibit 10.36 to the current report on Form 8-K filed with the Securities and Exchange Commission on January 3, 2007 (File No. 333-111656).
         
10.37
 
Credit Agreement dated February 22, 2007, by and among Gran Tierra Energy Inc, Gran Tierra Energy Colombia, Ltd., Argosy Energy Corp., and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.1 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.38
 
Note For Loans, dated February 22, 2007, by the Company in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.2 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.39
 
GP Pledge Agreement, dated as of February 22, 2007, by the Company in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.3 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.40
 
Partnership Pledge Agreement, dated as of February 22, 2007, by and among the Company and Argosy Energy Corp., in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.4 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.41
 
Collection Account Pledge Agreement, dated as of February 22, 2007, by Gran Tierra Energy Colombia, Ltd. in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.5 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.42
 
ISDA 2002 Master Agreement, dated as of February 22, 2007, by and among the Company and Standard Bank Plc, and the Schedule thereto.
 
Incorporated by reference to Exhibit 10.6 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
 

 
10.43
 
Blocked Account Control Agreement, dated as of February 22, 2007, by and among Gran Tierra Energy Colombia, Ltd., Standard Bank Plc and JPMorgan Chase Bank.
 
Incorporated by reference to Exhibit 10.7 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.44
 
Share Pledge Agreement, dated as of February 22, 2007, by and among the Company and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.8 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.45
 
First Priority Open Pledge Agreement Over Credit Rights Derived From A Crude Oil Commercial Sales Agreement, dated as of February 22, 2007, by and among Gran Tierra Energy Colombia, Ltd. and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.9 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.46
 
Contract between Ecopetrol S.A., and Argosy Energy International, for the sale of crude oil, dated December 1, 2006
 
Annual Report on Form 10-KSB/A for the period ended December 31, 2006 and filed with the Securities and Exchange on March 30, 2007 (File No. 333-111656).
         
10.47
 
Palmar Largo Assignment Agreement, dated September 1, 2005, between Don Won Corporation (Sucursal Argentina), and Gran Tierra Inc.
 
Annual Report on Form 10-KSB/A for the period ended December 31, 2006 and filed with the Securities and Exchange on March 30, 2007 (File No. 333-111656).
         
10.48
 
Escrow Agreement dated as of the ___th day of June, 2006, among Gran Tierra Energy, Inc. and McGuireWoods LLP, as Escrow Agent.
 
Incorporated by reference to Exhibit 10.48 to the Form S-1/A filed with the Securities and Exchange Commission on May 4, 2007 (File No. 333-140171).
         
10.49*
 
Employment Agreement, dated April 1, 2006, between Argosy Energy International and Edgar Dyes.
 
Incorporated by reference to Exhibit 10.49 to the Form S-1/A filed with the Securities and Exchange Commission on May 4, 2007 (File No. 333-140171).
         
21.1
 
List of subsidiaries.
 
Incorporated by reference to Exhibit 21.1 to the Form S-1/A filed with the Securities and Exchange Commission on April 13, 2007 (File No. 333-140171).
         
31.1
 
Certificate of the President and Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
Previously filed. Additional certification filed herewith.
         
31.2
 
Certificate of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
Previously filed. Additional certification filed herewith.
         
32.1
 
Certification of the President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
Previously filed.
         
32.2
 
Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
Previously filed.
 

* Management contract or compensatory plan or arrangement.
 


SIGNATURES 
 
     In accordance with Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Company has duly caused this report to be signed on its behalf by the undersigned, thereby duly authorized on July 9, 2007.
     
  Gran Tierra Energy Inc.
 
 
 
 
 
 
  By:   /s/ Dana Coffield  
 
Name: Dana Coffield
 
Title:  President and Chief Executive Officer



EXHIBIT INDEX

Exhibit No.
 
Description
 
Reference
2.1
 
Acquisition Agreements
 
See Exhibits 10.1, 10.3, 10.18, 10.46 and 10.47
         
3.1
 
Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.1 to the Form SB-2, as amended, filed with the Securities and Exchange Commission on December 31, 2003 (File No. 333-111656).
         
3.2
 
Certificate Amending Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.2 to the Form SB-2, as amended, and filed with the Securities and Exchange Commission on December 31, 2003 (File No. 333-111656).
         
3.3
 
Certificate Amending Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.4 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
3.4
 
Certificate of Amendment to Articles of Incorporation.
 
Incorporated by reference to Exhibit 3.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 1, 2006 (File No. 333-111656).
         
3.5
 
Amended and Restated Bylaws of Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 3.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
4.1
 
Form of Warrant.
 
Incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
         
10.1
 
Share Purchase Agreement by and between Goldstrike Inc. and Gran Tierra Energy Inc. dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.2
 
Form of Registration Rights Agreement by and among Goldstrike Inc. and the purchasers named therein.
 
Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
         
10.3
 
Assignment Agreement by and between Goldstrike Inc. and Gran Tierra Goldstrike Inc. dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.4
 
Voting Exchange and Support Agreement by and between Goldstrike, Inc., 1203647 Alberta Inc., Gran Tierra Goldstrike Inc. and Olympia Trust Company dated as of November 10, 2005.
 
Incorporated by reference to Exhibit 10.3 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.5
 
Form of Split Off Agreement by and among Goldstrike Inc., Dr. Yenyou Zheng, Goldstrike Leasco Inc. and Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 10.4 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.6*
 
Employment Agreement between Gran Tierra Energy Inc. and Dana Coffield dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.5 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
 

 
10.7*
 
Employment Agreement between Gran Tierra Energy Inc. and James Hart dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.6 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.8*
 
Employment Agreement between Gran Tierra Energy Inc. and Max Wei dated as of April 29, 2005, as amended.
 
Incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.9*
 
Employment Agreement between Gran Tierra Energy Inc. and Rafael Orunesu dated as of March 1, 2005, as amended.
 
Incorporated by reference to Exhibit 10.8 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
 10.10*
 
Form of Indemnity Agreement.
 
Incorporated by reference to Exhibit 10.9 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.12*
 
2005 Equity Incentive Plan.
 
Incorporated by reference to Exhibit 10.11 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on November 10, 2005 (File No. 333-111656).
         
10.13
 
Form of Subscription Agreement.
 
Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on December 19, 2005 (File No. 333-111656).
         
10.14
 
Details of the Goldstrike Special Voting Share.
 
Incorporated by reference to Exhibit 10.14 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
         
10.15
 
Exchangeable Share Provisions.
 
Incorporated by reference to Exhibit 10.15 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
         
10.16
 
Refinery Contract between Refinor S.A.and Dong Wong Corporation - Golden Oil Corporation.
 
Incorporated by reference to Exhibit 10.16 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656).
         
10.17 
 
Contract between Compañia General de Combustibles S.A. and Gran Tierra Energy Argentina S.A.
 
Incorporated by reference to Exhibit 10.17 to the Annual Report on Form 10-KSB/A for the period ended December 31, 2005 and filed with the Securities and Exchange on April 21, 2006 (File No. 333-111656)
         
10.18
 
Securities Purchase Agreement, dated as of May 25, 2006, by and between Gran Tierra Energy, Inc and Crosby Capital, LLC.
 
Incorporated by reference to Exhibit 10.18 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 1, 2006 (File No. 333-111656).
         
10.20
 
Form of Securities Purchase Agreement, dated as of June 20, 2006, by and among the Company and retail investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.20 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
 

 
10.21
 
Form of Subscription Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and retail investors subscribing for units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.21 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.22
 
Securities Purchase Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and CD Investment Partners, Ltd.
 
Incorporated by reference to Exhibit 10.22 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.23
 
Form of Registration Rights Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and institutional investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.23 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.24
 
Form of Registration Rights Agreement, dated as of June 20, 2006, by and among Gran Tierra Energy Inc. and retail investors purchasing units of Gran Tierra Energy Inc. securities in a private offering.
 
Incorporated by reference to Exhibit 10.24 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.25
 
Registration Rights Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and CD Investment Partners, Ltd.
 
Incorporated by reference to Exhibit 10.25 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.26
 
Lock-Up Agreement, dated June 20, 2006, by and among Sanders Morris Harris Inc. and the executive officers and directors of Gran Tierra Energy Inc.
 
Incorporated by reference to Exhibit 10.26 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.27
 
Registration Rights Agreement, dated as of June 20, 2006, by and between Gran Tierra Energy Inc. and Crosby Capital, LLC.
 
Incorporated by reference to Exhibit 10.27 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2006 (File No. 333-111656).
         
10.28
 
Form of Securities Purchase Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.28 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
         
10.29
 
Form of Subscription Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.29 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
         
10.30
 
Form of Registration Rights Agreement, dated as of June 30, 2006, by and among Gran Tierra Energy Inc. and the investors in the June 30, 2006 closing of the Offering.
 
Incorporated by reference to Exhibit 10.30 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on July 5, 2006 (File No. 333-111656).
         
10.31
 
Form of Escrow Agreement.
 
 Incorporated by reference to Exhibit 10.31 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.32
 
Form of Registration Rights Agreement by and among Goldstrike Inc. and the purchasers named therein.
 
 Incorporated by reference to Exhibit 10.32 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.33
 
Form of Subscription Agreement by and among Goldstrike Inc., Gran Tierra Energy, Inc. and the investor identified therein.
 
 Incorporated by reference to Exhibit 10.33 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
 

 
10.34
 
Form of Registration Rights Agreement by and among Gran Tierra Energy, Inc. f/k/a Goldstrike, Inc. and the purchasers named therein.
 
 Incorporated by reference to Exhibit 10.34 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.35
 
Form of Subscription Agreement by and among Gran Tierra Energy, Inc. f/k/a Goldstrike, Inc. and the investor identified therein.
 
 Incorporated by reference to Exhibit 10.35 to Form SB-2, as amended, filed with the Securities and Exchange Commission on December 7, 2006 (File No. 333-111656).
         
10.36*
 
Executive Employment Agreement dated December 1, 2006, by and between Gran Tierra Energy Inc. and Martin H. Eden.
 
Incorporated by reference to Exhibit 10.36 to the current report on Form 8-K filed with the Securities and Exchange Commission on January 3, 2007 (File No. 333-111656).
         
10.37
 
Credit Agreement dated February 22, 2007, by and among Gran Tierra Energy Inc, Gran Tierra Energy Colombia, Ltd., Argosy Energy Corp., and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.1 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.38
 
Note For Loans, dated February 22, 2007, by the Company in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.2 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.39
 
GP Pledge Agreement, dated as of February 22, 2007, by the Company in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.3 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.40
 
Partnership Pledge Agreement, dated as of February 22, 2007, by and among the Company and Argosy Energy Corp., in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.4 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.41
 
Collection Account Pledge Agreement, dated as of February 22, 2007, by Gran Tierra Energy Colombia, Ltd. in favor of Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.5 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.42
 
ISDA 2002 Master Agreement, dated as of February 22, 2007, by and among the Company and Standard Bank Plc, and the Schedule thereto.
 
Incorporated by reference to Exhibit 10.6 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.43
 
Blocked Account Control Agreement, dated as of February 22, 2007, by and among Gran Tierra Energy Colombia, Ltd., Standard Bank Plc and JPMorgan Chase Bank.
 
Incorporated by reference to Exhibit 10.7 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.44
 
Share Pledge Agreement, dated as of February 22, 2007, by and among the Company and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.8 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.45
 
First Priority Open Pledge Agreement Over Credit Rights Derived From A Crude Oil Commercial Sales Agreement, dated as of February 22, 2007, by and among Gran Tierra Energy Colombia, Ltd. and Standard Bank Plc.
 
Incorporated by reference to Exhibit 10.9 to the current report on Form 8-K/A filed with the Securities and Exchange Commission on March 6, 2007 (File No. 333-111656).
         
10.46
 
Contract between Ecopetrol S.A., and Argosy Energy International, for the sale of crude oil, dated December 1, 2006
 
Annual Report on Form 10-KSB/A for the period ended December 31, 2006 and filed with the Securities and Exchange on March 30, 2007 (File No. 333-111656).
 

 
10.47
 
Palmar Largo Assignment Agreement, dated September 1, 2005, between Don Won Corporation (Sucursal Argentina), and Gran Tierra Inc.
 
Annual Report on Form 10-KSB/A for the period ended December 31, 2006 and filed with the Securities and Exchange on March 30, 2007 (File No. 333-111656).
         
10.48
 
Escrow Agreement dated as of the ___th day of June, 2006, among Gran Tierra Energy, Inc. and McGuireWoods LLP, as Escrow Agent.
 
Incorporated by reference to Exhibit 10.48 to the Form S-1/A filed with the Securities and Exchange Commission on May 4, 2007 (File No. 333-140171).
         
10.49*
 
Employment Agreement, dated April 1, 2006, between Argosy Energy International and Edgar Dyes.
 
Incorporated by reference to Exhibit 10.49 to the Form S-1/A filed with the Securities and Exchange Commission on May 4, 2007 (File No. 333-140171).
         
21.1
 
List of subsidiaries.
 
Incorporated by reference to Exhibit 21.1 to the Form S-1/A filed with the Securities and Exchange Commission on April 13, 2007 (File No. 333-140171).
         
31.1
 
Certificate of the President and Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
Previously filed. Additional certification filed herewith.
         
31.2
 
Certificate of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
Previously filed. Additional certification filed herewith.
         
32.1
 
Certification of the President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
Previously filed. 
         
32.2
 
Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
Previously filed.
 

* Management contract or compensatory plan or arrangement.
 


Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Dana Coffield, certify that:

1. I have reviewed this annual report on Form 10-KSB/A of Gran Tierra Energy Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
     
     
Date: July 9, 2007   
/s/ Dana Coffield
 
Dana Coffield
President and Chief Executive Officer


 
Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Martin Eden, certify that:

1. I have reviewed this annual report on Form 10-KSB/A of Gran Tierra Energy Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
     
     
Date: July 9, 2007
  
/s/ Martin Eden
 
Martin Eden
Chief Financial Officer