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Block 31

Project Stages

The development stages in the projects are displayed in the standard sequence for the industry. However, projects may be developed in a different sequence because of corporate decisions or events that push the owner to repeat stages. To access the full details of this project’s history please explore its milestones

Early Works
Environmental evaluation
Start: 10/2003
Completion: 12/2006
In Construction
Under development
Start: 12/2006
Completion: 06/2009
Current Stage In production
Project Details


Belonging to Ecuador's state-owned Petroamazonas, Block 31 is located in Orellana province in 85ha, out of which 39ha are located within the Yasuní National Park. The field has been operated by the company since 2007, when it acquired the environmental permits to undergo development activities. Fields include Apaika and Nenke, which combined hold 230Mb of 18° API crude. Another prospect which is being developed is Apaika Sur, which is expected to hold 12.6Mb of 17-19° API of unrisked crude. Apaika currently produces 5,700b/d from 12 wells while Nenke is still being tested through an exploratory well as of December 2014. The decision to exploit these fields has been questioned by environmentalists and social movements due the impact that it would have on the rainforest and indigenous groups in voluntary isolation. According to the company, all procedures have taken into account the project's environmental considerations. During 2014, Petroecuador undertook 200,000m2 of reforestation activities in block 31.

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Related Companies

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  • * Figures and dates are as per the latest publicly available information, as well as information gathered by BNamericas reporters and analysts and are subject to change.

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Key Specs

Full Name
Block 31
Project Type
Crude oil, Exploration, Onshore, Upstream
Development Phase
In production
Project Status
Project Capacity
5,700  b/d (barrels per day)  Crude oil

Block 31 is located  in Ecuador's Orellana province.

* The map coordinates represent the approximate latitude and longitude, and not the exact location of the project. 



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Owner / operator
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CEO, Petroamazonas
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