AGREEMENT

This document witnesses the private agreement (the “Agreement”) by

GRAN TIERRA ENERGY PERU S.R.L. (hereinafter, “THE EMPLOYER”) with Unique Tax Payer Registry – RUC No. 20513842377, with address for purposes herein at Jirón Arias Araguez N° 250, Distrito de Miraflores, Provincia y Región Lima, a company registered in entry No. 12538256 of the Public Registry of Lima duly represented by its legal representative, Mónica María Teresa Del Águila Umeres De Rossi, identified by National Identity Document No. 08814414 (hereinafter, “THE EMPLOYER”), and Mr. Carlos Arturo Monges Reyes identified by National Identity Document No. 07781022, domiciled at Domingo de la Presa N°127, Monterrico, Lima (hereinafter, “THE EMPLOYEE”); pursuant to the following terms and conditions (THE EMPLOYER and THE EMPLOYEE collectively referred to as the “Parties”):

FIRST: GRAN TIERRA ENERGY INC. on March 17, 2011 acquired PETROLIFERA PETROLEUM DEL PERU S.A.C. As a result, both PETROLIFERA PETROLEUM DEL PERU S.A.C. and THE EMPLOYER are affiliates and belong to the same corporate group.

At the time of the acquisition, THE EMPLOYEE was working for PETROLIFERA PETROLEUM DEL PERU S.A.C. as the General Manager.

Parties agreed that THE EMPLOYEE would remain as the General Manager of PETROLIFERA PETROLEUM DEL PERU S.A.C. but would also be appointed as the General Manager of THE EMPLOYER as of October 1^st, 2011.

SECOND: As a consequence of THE EMPLOYEE’s commencement with in THE EMPLOYER on October 1^st, 2011, he is legally entitled, from THE EMPLOYER, to S/. 2021.74 (which corresponds to 1/12 of his computable salary from THE EMPLOYER as Length of Service Compensation - Compensación por Tiempo de Servicios - CTS) which was deposited in November, and, S/. 12030, - which corresponds to 3/6 of his computable salary from THE EMPLOYER, as Christmas legal bonus (Gratificación por Navidad).

THIRD: Since both PETROLIFERA PETROLEUM DEL PERU S.A.C. and THE EMPLOYER belong to the same corporate group and are affiliates, and THE EMPLOYEE’s commencement with THE EMPLOYER was not intended reduce his compensation, by this Agreement the Parties agree that, as an exceptional measure, that THE EMPLOYER will pay an additional sum for THE EMPLOYEE’s November Length of Service Compensation (Compensación por Tiempo de Servicios-CTS) and Christmas legal bonus, such that THE EMPLOYEE receives the total aggregate amount of combined compensation from GRAN TIERRA ENERGY PERU S.R.L. and PETROLIFERA PETROLEUM DEL PERU S.A.C. that THE EMPLOYEE would have received had he

remained solely employed by PETROLIFERA PETROLEUM DEL PERU S.A.C. Accordingly, THE EMPLOYEE will earn 6/12 of his computable salary from THE EMPLOYER as CTS and 6/6 of his computable salary from THE EMPLOYER as Christmas legal bonus.

FOURTH: In order to execute the agreement set forth in previous clause, parties hereby agree to and declare the following:

FIFTH: Furthermore, for the reasons detailed in the First Clause, the parties agree that, in the event that THE EMPLOYER dismisses THE EMPLOYEE without cause and THE EMPLOYEE has the legal right to severance, the following shall apply:

SIXTH: For any matters not expressly covered by this Agreement, Peruvian labor laws and the provisions in force of the Employment Agreement shall apply.

To signify their agreement herewith, both Parties execute this Agreement in two copies each of the same tenor and validity in the city of Lima, on December 14th, 2011.

THE EMPLOYER    

THE EMPLOYEE