Management Team

  • James F. Park , CEO
    James F. Park

    James Park has served as our Chief Executive Officer and as a member of our Board of Directors since co-founding the Company in 2002. Mr. Park has over 40 years of experience in all phases of the upstream oil and gas business, with a strong background in the acquisition, implementation and management of international projects and teams in North America, South America, Asia, Africa, Europe and the Middle East.

    He received a Bachelor of Science degree in Geophysics from the University of California at Berkeley and previously worked as a research scientist in earthquake and tectonic studies at the University of Texas. In 1978, Mr. Park helped pioneer the development of commercial oil and gas production in Central America with Basic Resources, an oil and gas exploration company in Guatemala. He remained a member of the Board of Directors until the company was successfully sold in 1997. Mr. Park is also a member of the Board of Directors of GoodRock, LLC and is a member of the AAPG and SPE. Mr. Park has lived in Latin America since 2002.


    Andres Ocampo joined GeoPark in 2010 and has served as GeoPark’s Chief Financial Officer since January 2013. He has more than 15 years of experience in business and finance. Andres has been instrumental in helping GeoPark reach some of its greatest milestones, including GeoPark’s entry into Colombia and Brazil, IPO on the New York Stock Exchange, acquisition of Amerisur Resources and recent significant acreage expansion in Colombia.

    His industry knowledge and the discipline he has brought to the capital allocation process have helped make GeoPark one of the most profitable companies in its peer group with increasing shareholder returns. Previously, Andres served as GeoPark’s Director of Growth and Capital and as Corporate Finance Manager. Prior to joining GeoPark, Andres worked in the Investment Banking Division of Credit Agricole Corporate and Citigroup, focusing on the oil and gas and commodities industries.

    Andres holds a bachelor’s degree in economics from Buenos Aires Catholic University.

  • Augusto Zubillaga , Chief Operating Officer
    Augusto Zubillaga

    Augusto Zubillaga has served as our Chief Operating Officer since May 2015. He previously served in other management positions throughout the Company including Operations Director, Director for Argentina and Production Director. He is a petroleum engineer with over 26 years of experience in production, engineering, well completion, corrosion control, reservoir management and field development. Prior to joining our company, Mr. Zubillaga worked for Petrolera Argentina San Jorge S.A. and Chevron San Jorge S.A. At Chevron San Jorge S.A., he led multi-disciplinary teams focused on improving production, costs and safety, and was the leader of the Asset Development Team, which was responsible for creating the field development plan, and estimating and auditing the oil and gas reserves of the Trapial field in Argentina. Additionally, at Chevron San Jorge S.A., Mr. Zubillaga was also part of the team that was responsible for the identification of business opportunities and worked with the head office on the set up of the best business practices. He has a degree in Petroleum Engineering from the Instituto Tecnológico of Buenos Aires (ITBA) and is the author of several industry papers, related to different matters, such as electrical submersible pump optimization, corrosion control, water handling and intelligent production systems.

  • PEDRO E. AYLWIN , Director of Legal and Governance

    Pedro Aylwin has been serving as our Director of Legal and Governance since April 2011. He has also served the Company as a member of our board of directors from July 2013 to December 2021. From 2003 to 2006, Mr. Aylwin worked for us as an advisor on governance and legal matters. He holds a degree in law from the Universidad de Chile and an LLM from the University of Notre Dame. Mr. Aylwin has extensive experience in the natural resources sector. He is also a partner at the law firm Aylwin, Mendoza, Luksic, Valencia Abogados in Santiago, Chile, where he represented mining, chemical and oil and gas companies in numerous transactions. From 2006 until 2011, he served as Lead Manager and General Counsel at BHP Billiton, Base Metals, where he was in charge of legal and corporate governance matters on BHP Billiton’s projects, operations and natural resource assets in South America, North America, Asia, Africa and Australia.

  • MARTÍN TERRADO , Director of Operations

    Mr. Terrado joined our company in August 2018. He has more than 20 years of experience in the oil industry, working in field development and operations. Before joining GeoPark, he worked for Petrolera Argentina San Jorge S.A. and Chevron in international operations, including in Argentina, the United States and Venezuela. At Chevron, Mr. Terrado led heavy oil operations at fields in Venezuela. Before that, he was responsible for water injection, CO2 flooding and unconventional operations. Mr. Terrado has a degree in Petroleum Engineering from the Buenos Aires Institute of Technology (ITBA) and an MBA from the Austral University of Argentina’s IAE Business School.

  • MARCELA VACA , General Director

    Marcela Vaca joined GeoPark as Director for Colombia in August 2012. She holds a degree in Law from Colombia’s Pontificia Universidad Javeriana, a master’s degree in Commercial Law from the same university and an LLM from Georgetown University. She served in the legal department of a number of companies in the mining and energy sector in Colombia. In 2000 Mrs. Vaca joined GHK Company Colombia leading the legal, social and environmental strategy for the development of the Guaduas field and the construction of its pipeline. Prior to joining our company, Mrs. Vaca served for nine years as the General Manager of the Hupecol Group, led the development of the Caracara field, the construction of the Jaguar – Santiago Pipeline, and was also involved in the structuring of the company’s asset development, its financing and sales strategy.

  • Agustina Wisky , Director of Capabilities and Culture
    Agustina Wisky

    Agustina Wisky has worked with our Company since it was founded in November 2002 and has been our Director of Capabilities and Culture since 2018. She previously served as our Director of Performance and as our Director of People since 2012 until December 2016. Mrs. Wisky is a public accountant, and also holds a degree in Human Resources from the Austral University of Argentina’s IAE Business School. She has over 15 years of experience in the oil industry. Before joining our company, she worked at AES Gener and PricewaterhouseCoopers.

  • Verónica Dávila , Commercial Director
    Verónica Dávila

    Veronica Davila has served as GeoPark’s Commercial Director since she joined the Company in December 2016. During her tenure as Commercial Director, she has managed GeoPark’s oil and gas sales and transportation strategy, negotiated key financial agreements and supported the development of the Company’s overall financial strategy.

    Veronica is a highly experienced financial leader with a strong banking background and deep understanding of oil and gas market dynamics. She has over 14 years of experience in the commodities and financial sectors. Prior to joining GeoPark, she spent 10 years at Goldman Sachs, within the investment banking Division and at the Commodities Sales and Trading arm in New York.

    Veronica holds a bachelor’s degree in economics from Universidad Católica Argentina.

  • Salvador Minniti , Director of Exploration
    Salvador Minniti

    Salvador Minniti has been our Director of Exploration since January 2012. He previously served as our Exploration Manager. He holds a bachelor’s degree in Geology from Universidad Nacional de La Plata and has a graduate degree in Oil Geology from the Instituto Argentino. Mr. Minniti has over 30 years of experience in oil exploration and has worked in YPF S.A., Petrolera Argentina San Jorge S.A. and Chevron Argentina.

  • STACY STEIMEL , Shareholder Value Director

    Stacy Steimel joined GeoPark in February 2017 as our Shareholder Value Director. Ms. Steimel has more than 20 years of experience in the financial sector as Fund Manager and subsequently as regional CEO for PineBridge Investments, ex-AIG Investments in Latin America. Before AIG, Ms. Steimel held positions in the US Treasury Department and at the InterAmerican Development Bank. She holds an MBA from the Pontificia Universidad Católica de Chile, an MA in Latin American Studies from the University of Texas at Austin and a BA from the College of William and Mary.

  • Ignacio Mazariegos  , New Business Director
    Ignacio Mazariegos 

    Ignacio Mazariegos has served as our New Business Director since June 2019 and has been with our Company since November 2010. He previously served as Business Performance Director (from February 2018 through May 2019) and as Corporate Planning Manager (from February 2015 through January 2018). Mr. Mazariegos holds an Industrial Engineering degree and a Specialization in Oil and Gas Production from the Instituto Tecnológico de Buenos Aires (ITBA). Before joining our Company, Mr. Mazariegos worked at Esso Argentina.

  • ADRIANA LA ROTTA , Director of Connections

    Mrs. La Rotta has been our Director of Connections since November 2018, being responsible for GeoPark’s institutional affairs, internal and external communications. She is a communications professional and award-winning journalist with broad experience in Latin America, Asia, and the United States. For over six years she led the media relations strategy for Americas Society/Council of the Americas, a New York-headquartered business organization whose members are international corporations representing a broad range of industries. Previously she was a TV reporter and anchor in her native Colombia and worked as a foreign correspondent in Brazil, the United States, Japan, and Hong Kong. Mrs. La Rotta holds a BA in Journalism from Colombia’s Pontificia Universidad Javeriana and a certificate in NGO Management from Temple University-Japan.

  • Norma Yolanda Sánchez , Nature & Neighbors Director
    Norma Yolanda Sánchez

    Norma Sánchez was awarded the degree of Social Worker at Universidad Industrial de Santander in Colombia, holds a masters in Corporate Social Responsibility, Accounting and Social Audit of the University of Barcelona and holds a certification as Specialist in Process Management for Conflict Resolution and Negotiation at Scotwork Latinamerica. She has over 25 years’ experience in the industry. Before joining our company, she worked in Perenco Colombia Limited, Alange Energy Corp, Glencore, Petrobras and Ecopetrol.

  • CARLOS GÓMEZ , Safety Manager

    Carlos Gómez has served as our Safety and Health Manager since 2014. Mr. Gómez is a Petroleum Engineer from the American University of Bogotá and he has a specialization in Industrial Safety, Health and Environment from the Universidad Agraria of Colombia. He has over 20 years of experience working in different countries of Latin America like Pride International, San Antonio Internacional, Baker Hughes and Ecopetrol.

  • Sabrina García , Information Management Manager
    Sabrina García

    Sabrina Garcia joined the company in 2008, to be part of the Accounting team, and later became the Information Management Supervisor. She was awarded the degree of Public Accountant at Universidad Argentina de la Empresa, and she participated in the Management Development Program 2015, at IAE. She has more than 12 years of experience (PWC).

  • Verónica Hayden , Corporate People Manager
    Verónica Hayden

    Verónica Hayden joined our Company in 2013 and previously worked as Organizational Development Manager and Regional People Manager. She holds a BA in Educational Sciences and a master’s degree in Human Resources Management from Argentina’s San Andrés University. Mrs. Hayden has close to 20 years of experience in the oil and gas industry. Prior to joining GeoPark she worked at Perez Companc and Petrobras Energía S.A.