Gran Tierra Energy Inc.'s Profile

Management & Directors

• Dana Coffield

  President & CEO

  Prior to joining Gran Tierra Energy in May 2005, Dana was Vice President of the Middle East Business Unit for EnCana Corporation, responsible for business development, exploration operations, commercial evaluations, government and partner relations, planning and budgeting, environment/health/safety, security and management of several overseas operating offices. He held various senior management positions for EnCana's predecessor, Alberta Energy Company, including petroleum exploration operations in five countries. Dana was previously with ARCO International for ten years, where he participated in exploration and production operations in North Africa, SE Asia and Alaska. He graduated from the University of South Carolina with an MSc and PhD in Geology and holds a BSc in Geological Engineering from the Colorado School of Mines. Dana is also a member of the AAPG, the CSPG, and is a Fellow of the Explorers Club.

• Martin Eden

  CFO

  Mr. Eden has over twenty-six years experience in accounting and finance in the energy industry in Canada and overseas. He was most recently Chief Financial Officer of Artumas Group Inc. and has served as CFO of Chariot Energy Inc., Assure Energy Inc. and Geodyne Energy Inc., all publicly listed Canadian oil and gas companies. He was Controller and subsequently CFO of Kyrgoil Corporation and spent nine years with Nexen Inc. including three years as Finance Manager of the company's operations in Yemen and six years in Nexen's financial reporting and special projects areas in its Canadian head office. Martin has worked in public practice including two years as an audit manager for Coopers & Lybrand in East Africa. He holds a B.Sc. in Economics from Birmingham University, England, an MBA from Henley Management College/Brunel University, England, and is a member of the Institute of Chartered Accountants of Alberta and the Institute of Chartered Accountants in England and Wales.

• Max Wei

  VP Operations

  Max offers broad experience in reservoir engineering and project management in Canada, the US, Qatar, Bahrain, Oman, Kuwait, Egypt, Yemen, Pakistan, Bangladesh, Russia, Netherlands, Philippines, Malaysia, Venezuela and Ecuador, among other countries. His career includes positions with Shell Canada, Imperial Oil, Bechtel, Occidental Petroleum and Marathon Canada. He was most recently with EnCana Corporation, as Team Leader for Qatar and Bahrain operations, and he completed a project management position with Petronas in Malaysia before joining Gran Tierra in May 2005. Max is a registered Professional Engineer in the State of California and a member of the Association of Professional Engineers, Geologists and Geophysicists of Alberta. He has a BSc in Petroleum Engineering from the University of Alberta and Certification in Petroleum Engineering from Southern Alberta Institute of Technology.

• Rafael Orunesu

  President, Gran Tierra Energy Argentina

  Rafael was most recently Engineering Manager for Pluspetrol Norte SA, where he was responsible for planning and development operations in the Peruvian North jungle. He participated in numerous evaluation and asset purchase and sale transactions covering Latin America and North Africa with Pluspetrol. Rafael was previously with Pluspetrol in Argentina where he managed technical and economic evaluations for production operations. He began his career with YPF, initially as a geologist in the Austral Basin of Argentina and eventually as Chief of Exploitation Geology and Engineering for the Catriel Field in the Nuequ'en Basin, where he was responsible for drilling programs, workovers and secondary recovery projects. Rafael has a postgraduate degree in Reservoir Engineering and Exploitation Geology from Universidad Nacional de Buenos Aires and a degree in Geology from Universidad Nacional de la Plata, Argentina.

• Edgar Dyes

  President, Gran Tierra Energy Colombia

  Edgar joined Gran Tierra Energy's management team through the acquisition of Argosy Energy International, where he was Executive Vice President and Chief Operating Office for Argosy's general partner. His experience in the Colombian oil industry spans twenty-one years, with the last six years in charge of Argosy's planning, management, finance and administration. Edgar started his career with Union Texas Petroleum as a petroleum accountant advancing into supervision and management positions in UTP's international operations. Subsequently, he worked for Quintana Energy Corporation, (Cullen family, Houston), Jackson Exploration, Inc, CSX Oil and Gas and Garnet Resources Corporation where he held the position of Chief Financial Officer. Edgar has worked in various financial and managerial rolls on projects in the United Kingdom, Germany, Indonesia, Oman, Brunei, Egypt, Somalia, Ecuador and Colombia. He holds a bachelor's degree in business management from Stephen F. Austin State University with postgraduate studies in accounting.

• Shane O'Leary

  Chief Operating Officer

  Mr. O'Leary was President and Chief
  Executive Officer of First Calgary Petroleums Ltd., an oil and gas company
  actively engaged in exploration and development activities in Algeria. From
  2002 to 2006, Mr. O'Leary worked for Encana Corporation where his positions
  included Vice President of Development Planning and Engineering, as well as
  Vice President Brazil Business Unit. From 1985 to 2002 he worked for the
  Amoco Production Company/BP Exploration where he occupied numerous senior
  finance, planning, and business development positions with assignments in
  Canada, U.S.A., Azerbaijan and Egypt, culminating in his role as Business
  Development Manager for BP Alaska Gas. Early in his career Mr. O'Leary worked
  as a Corporate Banking Officer for Bank of Montreal's Petroleum group in
  Calgary, a Reservoir Engineer for Dome Petroleum, and as a Senior Field
  Engineer for Schlumberger Overseas, S.A. in Kuwait.