<h1>Greater Angostura Gas Project (Trinidad and Tobago)</h1>

<h2>Quick Facts</h2>
<table>
<tbody>
<tr><th>Item</th><th>Detail</th></tr>
<tr><td>Project Name</td><td>Greater Angostura Gas Project</td></tr>
<tr><td>Country</td><td>Trinidad and Tobago</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>Status Year</td><td>2025</td></tr>
<tr><td>Operator</td><td>Perenco</td></tr>
<tr><td>Owner(s)</td><td>Perenco T&T 45%; National Gas Company of Trinidad and Tobago Ltd 30%; Chaoyang Petroleum (Trinidad) Ltd 25%</td></tr>
<tr><td>Parent Company</td><td>Perenco SA 45.0%; National Gas Company of Trinidad and Tobago Ltd 30.0%; China Petrochemical Corp 12.5%; CNOOC Ltd 12.5%</td></tr>
<tr><td>Discovery Year</td><td>1999</td></tr>
<tr><td>Production Start Year</td><td>2005</td></tr>
<tr><td>Onshore/Offshore</td><td>Offshore</td></tr>
<tr><td>Basin</td><td>Eastern Venezuela Basin</td></tr>
<tr><td>Block(s)</td><td>Block 2C; Block 3A</td></tr>
</tbody>
</table>

<h2>Overview</h2>
<p>The Greater Angostura Gas Project is a shallow-water offshore conventional gas development in Trinidad and Tobago. It is located east to northeast of Trinidad and south of Tobago,in Blocks 2C and 3A. The project was originally developed by BHP Billiton and later became part of Woodside Energy’s portfolio. In July 2025,Perenco completed the acquisition of the assets and became operator. Greater Angostura has been developed through multiple phases: first oil in January 2005,gas production from Phase 2 in 2011,Phase 3,and the Ruby tie-back project (first oil 2021). The field contributes a material share of Trinidad and Tobago’s domestic gas supply.</p>

<h2>Location and Basin</h2>
<p>The project is in shallow water approximately 38.5 km off the east coast of Trinidad,in water depths of about 40 m. It is associated with the Eastern Venezuela Basin. Block 2C contains the original Angostura-area fields (Aripo,Kairi,Canteen),while Block 3A is linked to the Ruby development.</p>

<h2>Ownership and Operatorship</h2>
<p>Perenco is the operator. The ownership structure is: Perenco T&T 45%,National Gas Company of Trinidad and Tobago Ltd 30%,Chaoyang Petroleum (Trinidad) Ltd 25%. Parent-level entities include Perenco SA,National Gas Company of Trinidad and Tobago,China Petrochemical Corp,and CNOOC Ltd. Working interests differ between Angostura (Block 2C) and Ruby (Block 3A): Perenco holds 45% in Angostura and 68.46% in Ruby; National Gas Company holds 30% and 31.54% respectively; Chaoyang holds 25% in Angostura.</p>

<h2>Development History</h2>
<p>The field was discovered in 1999. First oil began in January 2005. Phase 2 gas production started in 2011 with a design capacity of 280 million cubic feet per day. Phase 3 followed. The Ruby project achieved first oil in 2021 via a tie-back to existing infrastructure. In 2025,Perenco acquired the assets from Woodside Energy,and in 2026 further development agreements were reported for Blocks 2C and 3A.</p>

<h2>Infrastructure and Facilities</h2>
<p>The development uses fixed offshore platforms: a central processing platform,five wellhead platforms,a gas export platform,subsea pipelines,and an onshore terminal at Guayaguayare. The National Gas Company of Trinidad and Tobago built a subsea gas pipeline from the Angostura gas export platform to Cove Estate in Tobago. Ruby is tied back to the existing Greater Angostura processing facilities.</p>

<h2>Production and Reserves</h2>
<p>Oil production began in 2005,gas in 2011. Phase 2 design capacity is 280 million cubic feet per day. Global Energy Monitor reports 2021 production of 2,033 million cubic metres of gas per year and 7.23 million barrels of crude oil and condensate per year,with remaining recoverable reserves of 2,039.75 million cubic metres of gas and 9.64 million barrels of liquids. Woodside stated in 2025 that Greater Angostura produced approximately 12% of Trinidad and Tobago’s gas supply. Perenco acquisition reporting indicated production of about 300 million standard cubic feet per day (roughly 50,000 boe/d) at the time of transaction.</p>

<h2>Recent Developments</h2>
<p>In March 2025,Woodside agreed to divest its Greater Angostura assets to Perenco for US$206 million. The transaction closed in July 2025 with proceeds of US$259 million. Perenco assumed operatorship and became a major gas producer in the country. In 2026,agreements with Perenco were reported to progress mature asset development in Blocks 2C and 3A.</p>

<h2>Related Topics</h2>
<ul>
<li>Trinidad and Tobago offshore gas production</li>
<li>Angostura field Block 2C</li>
<li>Ruby field Block 3A</li>
<li>Perenco Trinidad and Tobago operations</li>
<li>National Gas Company of Trinidad and Tobago</li>
<li>Shallow-water mature field redevelopment</li>
<li>Gas supply for Trinidad LNG and petrochemicals</li>
<li>Offshore fixed-platform integrity management</li>
<li>Gas export platforms and subsea pipelines</li>
<li>Woodside divestment of mature upstream assets</li>
</ul>

<h2>Sources</h2>
<ul>
<li><a href="https://www.gem.wiki/Greater_Angostura_Gas_Project_%28Trinidad_and_Tobago%29" rel="nofollow noopener" target="_blank">Global Energy Monitor: Greater Angostura Gas Project (Trinidad and Tobago)</a></li>
<li><a href="https://www.energy.gov.tt/the-government-of-the-republic-of-trinidad-and-tobago-welcomes-perenco-as-a-major-gas-producer/" rel="nofollow noopener" target="_blank">Trinidad and Tobago Ministry of Energy and Energy Industries: Government Welcomes Perenco as a Major Gas Producer</a></li>
<li><a href="https://www.energy.gov.tt/mature-asset-development-continues-in-tts-shallow-water/" rel="nofollow noopener" target="_blank">Trinidad and Tobago Ministry of Energy and Energy Industries: Mature Asset Development Continues in Shallow Water</a></li>
<li><a href="https://www.woodside.com/docs/default-source/asx-announcements/2025/woodside-to-divest-greater-angostura-assets-to-perenco.pdf" rel="nofollow noopener" target="_blank">Woodside Energy: Woodside to Divest Greater Angostura Assets to Perenco</a></li>
<li><a href="https://www.woodside.com/docs/default-source/asx-announcements/2025/third-quarter-2025-report.pdf" rel="nofollow noopener" target="_blank">Woodside Energy: Third Quarter 2025 Report</a></li>
<li><a href="https://www.bhp.com/news/media-centre/releases/2005/01/bhp-billiton-announces-first-oil-production-from-the-greater-angostura-field-in-trinidad-and-tobago" rel="nofollow noopener" target="_blank">BHP: First Oil Production from the Greater Angostura Field</a></li>
<li><a href="https://totalenergies.com/newsroom/trinite-et-tobago-demarrage-de-la-production-de-la-phase-2-du-champ-gazier-de-greater-angostura/?lang=eng" rel="nofollow noopener" target="_blank">TotalEnergies: Start-up of Greater Angostura Phase 2 Gas Production</a></li>
<li><a href="https://ngc.co.tt/about/pipeline-projects/tobago-pipeline/" rel="nofollow noopener" target="_blank">National Gas Company of Trinidad and Tobago: Tobago Pipeline</a></li>
<li><a href="https://www.offshore-technology.com/projects/angostura/" rel="nofollow noopener" target="_blank">Offshore Technology: Greater Angostura,Eastern Venezuela Basin</a></li>
<li><a href="https://www.offshore-technology.com/projects/greater-angostura-field-phase-iii/" rel="nofollow noopener" target="_blank">Offshore Technology: Greater Angostura Field Phase III</a></li>
<li><a href="https://www.nsenergybusiness.com/projects/ruby-offshore-development-project/" rel="nofollow noopener" target="_blank">NS Energy: Ruby Offshore Development Project</a></li>
<li><a href="https://www.reuters.com/business/energy/australias-woodside-energy-divest-greater-angostura-assets-206-million-2025-03-28/" rel="nofollow noopener" target="_blank">Reuters: Woodside to Divest Greater Angostura Assets to Perenco</a></li>
<li><a href="https://www.rigzone.com/news/perenco_completes_acquisition_of_woodsides_greater_angostura_stakes-14-jul-2025-181137-article/" rel="nofollow noopener" target="_blank">Rigzone: Perenco Completes Acquisition of Woodside’s Greater Angostura Stakes</a></li>
</ul>

IEPTC reference profile for Greater Angostura Gas in Trinidad and Tobago,covering asset type,location,development status,and upstream industry context.

Greater Angostura Gas Project (Trinidad and Tobago)

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Greater Angostura Gas Project (Trinidad and Tobago)

Greater Angostura Gas Project (Trinidad and Tobago)

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