Malaysia’s oil industry is no longer defined only by the amount of crude extracted from its offshore fields. Domestic liquids production has declined as older reservoirs mature, but the country retains a larger role in Asian petroleum markets through refining, trading, offshore engineering and the international reach of PETRONAS.
This creates a more complex oil economy than production figures alone suggest. Malaysia continues to export valuable crude grades while also importing crude and petroleum products to supply its large downstream system. At the same time, operators are using new discoveries, smaller-field contracts, deepwater development and enhanced recovery to slow the decline of established basins.
The industry’s future will depend on how effectively Malaysia combines these activities. It must extract more value from mature assets while developing new resources that are technically harder, smaller or located farther offshore.
Malaysia’s Oil Industry Has Moved Beyond Its Easy-Production Era
Malaysia had approximately 2.7 billion barrels of proved oil reserves in 2023, the second-largest reserve base in Southeast Asia. Most production comes from offshore areas around Peninsular Malaysia, Sarawak and Sabah.
The country’s petroleum and other liquids production declined to about 597,000 barrels per day in 2023 after falling steadily from 2017. Mature fields are the main cause. Many of Malaysia’s established offshore reservoirs have been producing for decades, meaning operators must work harder to maintain pressure, manage water and recover smaller remaining volumes.
Peninsular Malaysia includes the mature Malay Basin, where existing platforms, pipelines and processing hubs offer an important advantage. New discoveries or small fields located close to this infrastructure can be connected more cheaply than completely isolated projects. This allows resources that might be uneconomic elsewhere to be developed through shared facilities.
Sarawak has become especially important for recent exploration, although much of its new resource activity is linked to natural gas. Sabah provides a different opportunity through deepwater oil and gas development. Fields such as Kikeh, Gumusut-Kakap and Malikai helped establish Malaysia as one of Southeast Asia’s leading deepwater operators.
Malaysia is therefore not running out of upstream opportunities, but the character of those opportunities is changing. Large and simple fields are less common. Future oil production will depend more heavily on advanced seismic analysis, subsea systems, floating production facilities, improved recovery methods and the efficient use of existing infrastructure.
PETRONAS Uses Licensing Terms to Keep Mature Basins Investable
PETRONAS occupies two central positions in Malaysia’s petroleum industry. It operates as a commercial energy company while also acting, through Malaysia Petroleum Management, as custodian and manager of the country’s petroleum resources.
This structure allows PETRONAS to design production-sharing contracts for different types of assets. Conventional exploration blocks can attract companies seeking larger discoveries, while discovered resource opportunities offer access to known but undeveloped fields. Small Field Asset contracts are intended to support quicker and lower-cost development of clusters that may not justify a traditional large offshore project.
The Malaysia Bid Round has become the main mechanism for bringing new participants and capital into the upstream sector. Fourteen production-sharing contracts were awarded through the 2024 round and associated offerings. The 2025 round included exploration blocks and clusters of discovered fields, while the 2026 round expanded the offering to nine exploration blocks and six discovered resource opportunities.
This approach reflects Malaysia’s changing resource base. The country needs companies that can operate efficiently at several scales. International groups such as Shell, ConocoPhillips, INPEX and PTTEP remain important, but smaller independent operators can also play a role in late-life assets and compact field clusters.
The Mutiara Cluster off eastern Sabah is one example. Awarded under a Small Field Asset contract, it is expected to begin production around 2029 and could help open the Sandakan Basin to wider exploration. Its value is not only the volume expected from the first fields. The development may provide commercial and infrastructure knowledge for an area that has received less attention than western Sabah.
Malaysia’s continued licensing activity also signals that upstream oil remains strategically important despite national energy-transition goals. PETRONAS is not treating the oil sector as a business that can simply be allowed to decline. It is attempting to manage that decline, replace resources where possible and maintain domestic technical capacity.
The Next Barrel May Come From an Old Field
In a mature petroleum system, additional production often comes from improving existing assets rather than finding a giant new field. Malaysia is placing growing emphasis on brownfield investment, facility upgrades and enhanced recovery.
The Integrated Bekok Oil project in Peninsular Malaysia reflects this strategy. Rather than creating an entirely new production province, the project supports continued output from an established offshore area. Similar programs can involve new wells, platform modifications, water injection, equipment replacement and the removal of bottlenecks in processing systems.
PETRONAS planned 69 development wells for 2025, compared with 56 in 2024. It also outlined hundreds of annual facilities improvement activities intended to sustain producing assets and improve operational reliability. These programs are essential because small efficiency gains across many fields can add meaningful national volumes.
Malaysia is also expanding cooperation on offshore oil recovery. The aim is to combine operator data, research expertise and new technologies to increase the proportion of oil recovered from existing reservoirs. Even a modest improvement in recovery rates can create significant value when applied across several mature fields.
However, late-life production carries rising costs. Older platforms require more maintenance, while declining reservoirs may produce greater quantities of water alongside oil. Operators must decide whether another drilling campaign or equipment upgrade will generate enough additional production to justify the investment.
Decommissioning is therefore becoming part of the same strategic calculation. PETRONAS has identified large numbers of wells and offshore facilities for plugging, abandonment or removal. Malaysia must maintain production from commercially useful assets while safely retiring infrastructure that has reached the end of its productive life.
Sabah Deepwater and New Discoveries Provide a Second Path
Mature-field recovery can slow decline, but it cannot fully replace the need for new resources. Malaysia’s deepwater areas and frontier basins offer the clearest route to larger additions.
Sabah’s deepwater sector has already demonstrated Malaysia’s ability to develop technically complex offshore fields. These projects require floating production systems, subsea wells and specialized marine services, but they can produce volumes that are difficult to find in shallow-water mature basins.
Exploration also continues in Peninsular Malaysia. PETRONAS announced the Bekok Deep-1 oil and gas discovery in 2024, describing it as an important result for a new geological play in the Malay Basin. The Lebah Emas-1 discovery followed in 2025 in an offshore Peninsular Malaysia block, adding further evidence that established basins can still produce new targets when explored with improved data and methods.
Not every discovery will become a producing oil field. Commercial development depends on reservoir size, crude quality, water depth, access to nearby facilities and expected prices. Malaysia’s advantage is that many offshore zones already have platforms, pipelines, service bases and experienced contractors.
This can shorten the distance between discovery and production. A smaller field located near an existing hub may create more value than a larger but isolated discovery requiring its own expensive infrastructure.
Refining Gives Malaysia a Larger Role Than Its Crude Output Suggests
Malaysia’s downstream sector changes the meaning of its oil-production decline. The country had approximately 997,000 barrels per day of refining capacity in 2023, substantially more than its domestic production of petroleum and other liquids.
The refining system includes facilities at Melaka, Port Dickson, Kerteh and Pengerang. The 300,000-barrel-per-day Pengerang refinery is the largest single site and forms part of a wider integrated petroleum and petrochemical complex in Johor, close to the Singapore trading and refining market.
Because Malaysia’s refining and trading system is larger than its domestic crude supply, the country participates in petroleum trade in several directions. It exports domestic crude and condensate, imports feedstocks and finished products, processes crude in local refineries and exports large volumes of diesel, fuel oil, biodiesel and other products.
In 2023, virtually all Malaysian crude and condensate exports went to Asia-Pacific markets. At the same time, Malaysia imported almost 1.2 million barrels per day of petroleum products and exported about 1.3 million barrels per day. These flows demonstrate that Malaysia functions as a regional processing, storage and trading center rather than as a simple producer exporting surplus domestic oil.
Downstream scale also provides some protection against upstream decline. Refining, petrochemicals, storage, shipping and fuel distribution can continue generating economic activity even if domestic crude production falls. However, margins are exposed to regional competition, especially from large refineries in Singapore, China, South Korea, India and the Middle East.
Pengerang is also becoming part of Malaysia’s lower-carbon fuel strategy. PETRONAS and its partners are developing a biorefinery at the complex with planned production of sustainable aviation fuel and biodiesel. This allows existing industrial infrastructure and trading connections to support new fuel markets without ending conventional refining activity.
Oil Revenue Still Supports Malaysia’s Wider Energy Strategy
PETRONAS remains one of Malaysia’s most important national companies. Its dividends, taxes and resource payments provide substantial revenue to federal and state governments. In 2024, PETRONAS reported RM72.4 billion in dividends, taxes, cash payments and other financial contributions to the Malaysian government.
Oil and gas earnings also finance investment in LNG, petrochemicals, renewable electricity, hydrogen, carbon management and other emerging businesses. Malaysia’s energy transition is therefore partly funded by the continued commercial strength of its hydrocarbon portfolio.
This creates a gradual rather than immediate transition. PETRONAS continues to describe its core oil and gas business as the foundation of its financial position, while directing part of its capital toward emissions reduction and new energy activities.
The main risk is that mature domestic production could decline faster than new projects and efficiency programs can replace it. Malaysia must also balance federal control of petroleum resources with the growing economic and political role of producing states such as Sabah and Sarawak.
Malaysia’s oil industry is unlikely to return to an era of rapid growth from large, easily developed fields. Its more realistic future is a managed portfolio combining mature-field recovery, selective deepwater projects, smaller discoveries, active licensing and a strong downstream sector. If these parts remain competitive, Malaysia can retain an important position in Asian oil markets even as the volume of crude produced from its oldest fields continues to fall.
