<h1>BIGST Oil and Gas Project,Malaysia</h1>

<p>The BIGST Oil and Gas Project is a discovered offshore conventional oil and gas project in Malaysia. The acronym BIGST is formed from the Bujang,Inas,Guling,Sepat,and Tujoh fields,located in blocks PM 313 and PM340 offshore Peninsular Malaysia. The project is operated by Petronas Carigali and is a high-carbon-dioxide gas development intended to supply the Malaysian domestic market. Carbon dioxide from produced gas is expected to be separated,captured,and injected into depleted gas fields using carbon capture and storage (CCS) technology.</p>

<h2>Quick Facts</h2>
<table>
<colgroup><col/><col/></colgroup>
<tbody>
<tr><th>Item</th><th>Details</th></tr>
<tr><td>Project Name</td><td>BIGST Oil and Gas Project</td></tr>
<tr><td>Country</td><td>Malaysia</td></tr>
<tr><td>Fuel Type</td><td>Oil and gas</td></tr>
<tr><td>Production Type</td><td>Conventional</td></tr>
<tr><td>Status</td><td>Discovered</td></tr>
<tr><td>Status Year</td><td>2024</td></tr>
<tr><td>Operator</td><td>Petronas Carigali</td></tr>
<tr><td>Owner(s)</td><td>Petronas Carigali Sdn Bhd [50%]; JX Nippon [50%]</td></tr>
<tr><td>Parent Company</td><td>ENEOS Group [50.0%]; Petroliam Nasional Bhd [50.0%]</td></tr>
<tr><td>Discovery Year</td><td>1970</td></tr>
<tr><td>Onshore/Offshore</td><td>Offshore</td></tr>
<tr><td>Block(s)</td><td>PM 313; PM340</td></tr>
</tbody>
</table>

<h2>Location and Operating Area</h2>
<p>The BIGST project is located offshore the east coast of Peninsular Malaysia,in the area off Kerteh,Terengganu. It is associated with blocks PM 313 and PM340. The project lies within Malaysia’s offshore Peninsular Malaysia petroleum province,a region with established gas demand from power,industry,and petrochemical sectors.</p>

<h2>Operator and Ownership</h2>
<p>Petronas Carigali operates the project. Ownership is split equally between Petronas Carigali Sdn Bhd (50%) and JX Nippon (50%),with parent companies Petroliam Nasional Bhd and ENEOS Group. In December 2022,Petronas Carigali and JX Nippon entered into a heads of agreement to collaborate on a proposal to monetize the BIGST gas potential. In March 2024,JX Nippon signed a production sharing contract with Petroliam Nasional Berhad and Petronas Carigali for development and production of the fields.</p>

<h2>Development History</h2>
<table>
<colgroup><col/><col/><col/></colgroup>
<tbody>
<tr><th>Milestone</th><th>Year or Date</th><th>Details</th></tr>
<tr><td>Discovery</td><td>1970</td><td>The BIGST cluster fields were discovered in the 1970s but remained stranded for decades.</td></tr>
<tr><td>Heads of Agreement</td><td>2022</td><td>Petronas Carigali and JX Nippon agreed to collaborate on monetizing the BIGST gas potential.</td></tr>
<tr><td>Production Sharing Contract</td><td>2024</td><td>PETRONAS awarded PSCs for the BIGST cluster to Petronas Carigali and JX Nippon (50% each).</td></tr>
</tbody>
</table>
<p>The fields were discovered in the 1970s but remained undeveloped due to the technical and commercial complexity of high-carbon-dioxide gas. The 2022 heads of agreement and 2024 production sharing contract marked steps toward commercialization. A final investment decision and commercial production start are not publicly confirmed.</p>

<h2>Infrastructure</h2>
<p>Public infrastructure details are limited. The project is expected to include offshore wells,gathering systems,gas processing with carbon dioxide separation,export infrastructure,and CCS for injecting separated CO₂ into depleted gas fields. The development concept is described as the first high-carbon-dioxide gas development in Peninsular Malaysia to incorporate CCS. Final design specifications,platform concepts,and pipeline routes are not disclosed in available sources.</p>

<h2>Production and Reserves</h2>
<p>The BIGST project is not producing commercially. It is classified as discovered,with production expected to supply the Malaysian domestic market once commercialized. Current project-level production figures,reserves by field,and start-up timing are not publicly confirmed.</p>

<h2>Recent Developments</h2>
<p>In 2024,PETRONAS signed production sharing contracts for the BIGST and Tembakau clusters. The BIGST PSC was awarded to Petronas Carigali and JX Nippon Oil &amp; Gas Exploration with 50% participating interest each. JX Nippon confirmed the PSC for the Bujang,Inas,Guling,Sepat,and Tujoh fields. The 2022 heads of agreement and the 2024 PSC are the key recent milestones. No public update on final investment decision or construction start is available.</p>

<h2>Related Topics</h2>
<ul>
<li>Bujang Field</li>
<li>Inas Field</li>
<li>Guling Field</li>
<li>Sepat Gas Field</li>
<li>Tujoh Field</li>
<li>Petronas Carigali</li>
<li>JX Nippon Oil &amp; Gas Exploration</li>
<li>ENEOS Xplora</li>
<li>High-carbon-dioxide gas development</li>
<li>Carbon capture and storage in Malaysia</li>
<li>Offshore gas development in Peninsular Malaysia</li>
<li>Malaysia domestic gas supply</li>
</ul>

<h2>Sources</h2>
<ul>
<li><a href="https://www.gem.wiki/BIGST_Oil_and_Gas_Project_%28Malaysia%29" rel="nofollow noopener" target="_blank">Global Energy Monitor,BIGST Oil and Gas Project (Malaysia)</a></li>
<li><a href="https://www.gem.wiki/Sepat_Gas_Field_%28Malaysia%29" rel="nofollow noopener" target="_blank">Global Energy Monitor,Sepat Gas Field (Malaysia)</a></li>
<li><a href="https://www.petronas.com/media/media-releases/petronas-carigali-jx-nippon-enter-heads-agreement-bigst-cluster-offshore" rel="nofollow noopener" target="_blank">PETRONAS,PETRONAS Carigali and JX Nippon Enter into Heads of Agreement for BIGST Cluster Offshore Peninsular Malaysia</a></li>
<li><a href="https://www.reuters.com/business/energy/petronas-jx-nippon-collaborate-proposal-develop-gas-fields-off-malaysia-2022-12-12/" rel="nofollow noopener" target="_blank">Reuters,Petronas and JX Nippon to collaborate on proposal to develop gas fields off Malaysia</a></li>
<li><a href="https://www.oedigital.com/news/511859-petronas-signs-gas-pscs-for-bigst-and-tembakau-clusters-offshore-malaysia" rel="nofollow noopener" target="_blank">Offshore Engineer,Petronas Signs Gas PSCs for BIGST and Tembakau Clusters Offshore Malaysia</a></li>
<li><a href="https://www.eneos-xplora.com/english/newsrelease/upload_files/20240326EN.pdf" rel="nofollow noopener" target="_blank">JX Nippon Oil &amp; Gas Exploration,Production Sharing Contract for BIGST Fields Offshore Malaysia</a></li>
<li><a href="https://www.eneos-xplora.com/english/project/southeast_asia/malaysia.html" rel="nofollow noopener" target="_blank">ENEOS Xplora,Malaysia Projects</a></li>
<li><a href="https://www.worldoil.com/news/2024/3/1/petronas-to-significantly-boost-malaysian-gas-supply-by-developing-two-offshore-clusters/" rel="nofollow noopener" target="_blank">World Oil,PETRONAS to boost Malaysian gas supply by developing two offshore clusters</a></li>
<li><a href="https://www.euro-petrole.com/petronas-carigali-jx-nippon-enter-into-heads-of-agreement-for-bigst-cluster-offshore-peninsular-malaysia-n-i-24876" rel="nofollow noopener" target="_blank">Europétrole,PETRONAS Carigali and JX Nippon Enter into Heads of Agreement for BIGST Cluster</a></li>
</ul>

IEPTC reference profile for BIGST Oil and Gas in Malaysia,covering asset type,location,development status,and upstream industry context.

BIGST Oil and Gas Project,Malaysia

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BIGST Oil and Gas Project,Malaysia

BIGST Oil and Gas Project,Malaysia

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