<h1>Junin – Junin Este Gas Project,Santa Cruz,Bolivia</h1>

<h2>Quick Facts</h2>
<table>
<tbody>
<tr><th>Item</th><th>Details</th></tr>
<tr><td>Project Name</td><td>Junin – Junin Este Gas Project</td></tr>
<tr><td>Country</td><td>Bolivia</td></tr>
<tr><td>Subnational Unit</td><td>Santa Cruz</td></tr>
<tr><td>Fuel Type</td><td>Gas</td></tr>
<tr><td>Production Type</td><td>Conventional</td></tr>
<tr><td>Status</td><td>Operating</td></tr>
<tr><td>Operator</td><td>YPFB Chaco</td></tr>
<tr><td>Owner(s)</td><td>YPFB Chaco SA [100%]</td></tr>
<tr><td>Parent Company</td><td>Yacimientos Petrolíferos Fiscales Bolivianos Corp [99.3%]</td></tr>
<tr><td>Discovery Year</td><td>1991</td></tr>
<tr><td>Onshore/Offshore</td><td>Onshore</td></tr>
</tbody>
</table>

<h2>Overview</h2>
<p>The Junin – Junin Este Gas Project is an operating onshore conventional gas project in Bolivia’s Santa Cruz department. It combines the Junín field and the Junín Este structure,both associated with the Santa Rosa producing complex. The project is operated by YPFB Chaco,a subsidiary of Yacimientos Petrolíferos Fiscales Bolivianos (YPFB). YPFB Chaco holds 100% ownership of the project. Producing reservoirs include Petaca,Cajones,Yantata,and Yecua.</p>
<p>Junín Este was discovered in 2014 by YPFB Chaco through the JNE-X1000 well,following 3D seismic work from 2004. The discovery was located in the Santa Rosa complex,which also includes structures such as Junín,Santa Rosa Oeste,Humberto Suárez Roca,Santa Rosa,and Palometas NW. The Junín field itself has been producing since the early 1990s.</p>

<h2>Development History</h2>
<p>The Junín field was discovered in 1991. YPFB Chaco announced the Junín Este gas discovery in 2014 via the JNE-X1000 well,which confirmed gas and condensate potential. Subsequent development wells include JNE-1002D and JNE-1004D,targeting multiple reservoirs. In 2019,well intervention (perforation) work was performed on Junín Este-1004D,supervised by Bolivia’s Agencia Nacional de Hidrocarburos.</p>

<h2>Production and Reserves</h2>
<p>The project is operating,but current project-level production figures are not clearly available. Well-level test data from the 2016–2017 YPFB Chaco annual report indicates gas production from multiple reservoirs. Reserve data for the combined project is limited; public sources identify producing zones but no current audited reserve figure.</p>

<h2>Recent Developments</h2>
<p>As of 2023,the project remains operating. No major redevelopment,ownership change,or new processing facility has been publicly announced in recent years. YPFB Chaco continues development drilling and well activities based on annual report references from the 2018–2020 period.</p>

<h2>Sources</h2>
<ul>
<li><a href="https://www.gem.wiki/Junin_-_Junin_Este_Gas_Project_(Santa_Cruz,_Bolivia)">Global Energy Monitor – Junin – Junin Este Gas Project</a></li>
<li><a href="https://www.anh.gob.bo/InsideFiles/Documentos/Documentos_Id-574-180725-0525-0.pdf">Agencia Nacional de Hidrocarburos – Campo de Explotación Junin – Junin Este</a></li>
<li><a href="https://ypfbchaco.com.bo/wp-content/uploads/2025/04/Memoria-YPFBCHACO-2016-2017-final-3-comprimido.pdf">YPFB Chaco – Memoria Anual 2016–2017</a></li>
<li><a href="https://ypfbchaco.com.bo/wp-content/uploads/2025/04/Memoria-YPFBCHACO-2018-2019-FINAL.pdf">YPFB Chaco – Memoria Anual 2018–2019</a></li>
<li><a href="https://ypfbchaco.com.bo/wp-content/uploads/2025/04/YPFB-CHACO-MEMORIA-ANUAL-2019-2020compressed.pdf">YPFB Chaco – Memoria Anual 2019–2020</a></li>
<li><a href="https://ibce.org.bo/principales-noticias-bolivia/noticias-nacionales-detalle.php?fecha=2014-04-25&amp;id=41816&amp;idPeriodico=1">IBCE – YPFB Chaco halla nuevas reservas de gas en Santa Cruz</a></li>
<li><a href="https://eju.tv/2014/05/ypfb-chaco-descubre-nuevo-campo-gasifero-en-santa-cruz/">eju.tv – YPFB Chaco descubre nuevo campo gasífero en Santa Cruz</a></li>
<li><a href="https://www.energypress.com.bo/2019/05/07/ypfb-chaco-ejecuta-baleo-en-pozo-junin-este-1004d/">Energy Press – YPFB Chaco ejecuta baleo en pozo Junín Este 1004D</a></li>
<li><a href="https://www.anh.gob.bo/w2019/contenido.php?O=2188&amp;s=5">Agencia Nacional de Hidrocarburos – Supervisión de actividades en Junín Este 1004D</a></li>
<li><a href="https://www.reuters.com/business/energy/brazil-argentina-sign-deal-with-bolivias-ypfb-transport-vaca-muerta-gas-2024-11-27/">Reuters – Brazil and Argentina sign deal with Bolivia's YPFB to transport Vaca Muerta gas</a></li>
</ul>

<h2>Related Topics</h2>
<ul>
<li>Bolivia onshore gas production</li>
<li>YPFB Chaco operated fields</li>
<li>Santa Cruz hydrocarbon fields</li>
<li>Santa Rosa producing complex</li>
<li>Junín Este gas discovery</li>
<li>Petaca,Cajones,Yantata and Yecua reservoirs</li>
<li>Bolivia gas supply and export decline</li>
<li>Onshore gas field development</li>
<li>Conventional gas and condensate production</li>
<li>YPFB upstream portfolio</li>
</ul>

IEPTC reference profile for Junin - Junin Este Gas Project,Santa Cruz in Bolivia,covering asset type,location,development status,and upstream industry context.

Junin - Junin Este Gas Project,Santa Cruz,Bolivia

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Junin - Junin Este Gas Project,Santa Cruz,Bolivia

Junin - Junin Este Gas Project,Santa Cruz,Bolivia

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