According to WPB, Asia’s refined-fuel shortage is becoming increasingly visible in Southeast Asia, with imports of light and middle distillates falling sharply while refinery margins remain at exceptional levels. Estimated Asian imports of diesel, jet fuel, gasoline and related products stand at about 5.59 million barrels per day in August 2026, 21% below the 7.08 million bpd average recorded during the three months ending in February. The shortfall is no longer evenly distributed across the region, with Indonesia and the Philippines absorbing some of the steepest declines.
Indonesia’s light and middle distillate imports are estimated at around 432,000 bpd in August, their lowest level in 13 months and significantly below the approximately 533,000 bpd average recorded before the conflict disrupted regional energy flows. The Philippines is receiving about 257,000 bpd, compared with an earlier average of roughly 362,000 bpd. By contrast, Australia has maintained imports close to previous levels, although securing those supplies has become considerably more expensive.
The contrast highlights an increasingly important feature of Asia’s energy market: the problem is not simply whether enough crude oil exists, but whether refineries have access to the right crude grades, sufficient operating capacity and the economic incentive to produce the products individual markets require.
Refining margins demonstrate just how distorted that equation has become. The profit margin for producing gasoil at a Singapore refinery reached approximately $71.29 per barrel on August 21. That was below the record $85.63 reached on March 30 but still 226% above the $21.90 recorded on February 27. Gasoline margins were also sharply higher, reaching $20.74 per barrel compared with $8 before the conflict.
These figures matter to the bitumen industry because refineries do not optimize individual products independently. When middle distillates command exceptional margins, the commercial value of maximizing diesel and jet-fuel production increases. Depending on refinery configuration, crude slate and available conversion equipment, this can alter the economic value placed on heavier refinery streams and reduce the incentive to maximize bitumen production.
That does not mean a $71 gasoil margin automatically causes a reduction in bitumen output. The relationship is more complex. Simple refineries with limited conversion capacity may continue generating substantial quantities of vacuum residue and other heavy material regardless of diesel margins. More complex refineries equipped with cokers, hydrocrackers or other upgrading units have greater flexibility to convert heavy streams into higher-value products.
The current Southeast Asian development therefore adds a new dimension to the bitumen outlook. The issue is no longer only that global refining capacity is tight. The latest data show where the shortage is becoming commercially painful and where refiners have the strongest incentive to prioritize transportation fuels.
Indonesia is particularly important for the regional bitumen market. It has a large road-building requirement, relies heavily on petroleum products and is simultaneously pursuing policies intended to reduce dependence on imported paving materials through greater use of domestic Buton asphalt. A tighter refined-products market can reinforce those pressures because refinery decisions increasingly have to balance gasoline, diesel, jet fuel, fuel oil and paving materials against one another.
If Indonesian refiners face strong domestic pressure to secure transportation fuels, bitumen production does not necessarily disappear, but its opportunity cost can increase. Material suitable for road binder must compete within a refinery system where other products may generate substantially higher margins or have greater strategic importance for domestic energy security.
The Philippines faces a different structural challenge. Its refining base is smaller and the country relies heavily on imported petroleum products. A fall from roughly 362,000 bpd of light and middle distillate imports to approximately 257,000 bpd indicates that external product availability has tightened substantially. This does not provide direct evidence of a Philippine bitumen shortage, but it demonstrates the broader procurement pressure affecting import-dependent Southeast Asian markets.
For bitumen traders, the distinction matters because fuel shortages can change regional trade patterns without an immediate change in road demand. Refineries capable of exporting both transportation fuels and heavy products may favor the cargoes offering the strongest netback. When diesel margins become exceptionally attractive, open-market bitumen availability can become less competitive for refinery capacity, storage and logistics.
Singapore sits at the center of this calculation. It is not simply a domestic fuel market; it is one of Asia’s most important refining, storage, blending and trading hubs. A gasoil margin above $70 per barrel signals an unusually strong economic incentive across the regional refining complex. Even refineries that continue producing bitumen must compare the return from selling heavy material as paving binder against alternative processing routes and products.
The wider refining system remains constrained. Global refinery crude throughput reached about 80.9 million bpd in July, nearly 5 million bpd below the level recorded one year earlier. Product exports from the Middle East remain disrupted, Russian refinery operations have been repeatedly affected by attacks, and Asian refining has not generated enough additional exports to fully compensate for the shortfall. Diesel exports from Russia, the Middle East and major Asian suppliers were approximately 1.3 million bpd lower year on year, equivalent to around one-fifth of global seaborne diesel trade.
The resulting pressure changes the role of refinery economics in bitumen pricing.
Under normal conditions, a bitumen buyer may focus heavily on crude prices, refinery production costs and seasonal road demand. Under current conditions, the opportunity value of refinery capacity becomes much more important. A producer may have suitable feedstock available but still demand a stronger price for bitumen because the same refinery system can generate unusually high returns from transportation fuels.
Vacuum residue is central to that calculation. It can become bitumen, enter fuel-oil blending or be processed further in refineries equipped with suitable conversion units. The optimal route depends on specifications, plant configuration, local demand and margins. High diesel cracks do not prove that residue is being diverted away from bitumen at every refinery, but they increase the economic incentive to examine alternatives.
For Southeast Asian importers, this could translate into tighter replacement costs even without an outright shortage of paving material. If Singaporean or other Asian refiners release fewer spot bitumen cargoes, buyers may need to reach farther for supply. South Korea, China, the Middle East and other origins can provide alternatives, but longer routes increase freight exposure and can change the relative attractiveness of bulk versus packaged material.
Bulk bitumen is particularly sensitive because it requires heated storage and specialized tankers. If product has to be sourced from a more distant refinery, freight can rise rapidly relative to the value of the cargo. Drums and jumbo bags offer greater routing flexibility but introduce packaging, container and handling costs.
The regional disparity in fuel imports also provides an important warning about purchasing power. Australia has been able to maintain light and middle distillate imports close to previous levels, while Indonesia and the Philippines have absorbed much larger volume reductions. This suggests that in a supply-constrained market, availability increasingly goes to buyers capable of paying the higher replacement cost.
A similar dynamic could eventually emerge in bitumen if Asian spot availability tightens. Markets with stronger purchasing power or more flexible procurement systems may secure cargoes first, while price-sensitive road programs could face longer lead times, alternative grades or delayed procurement.
There is currently no evidence that the latest distillate shortage has caused a quantified decline in Southeast Asian bitumen production. That point must remain clear. The data demonstrate severe refined-product tightness and exceptional refinery margins, not a confirmed regional asphalt-binder shortage.
The significance for bitumen is prospective and economic. Refiners are operating in a market where transportation fuels are generating unusually high returns, while importing countries are competing for reduced product volumes. That environment can raise the opportunity cost of producing and releasing bitumen even if physical refinery capacity remains available.
The next stage will depend on whether Asian fuel imports recover and whether refinery margins normalize. If Middle Eastern exports improve, Russian refining stabilizes and additional Asian product volumes reach the market, gasoil margins could retreat and the pressure on refinery optimization could ease.
If the shortage persists, Southeast Asia may face a more complicated second half of 2026. Indonesia and the Philippines would remain exposed to expensive imported fuels at the same time that road construction markets continue to require bitumen. Refiners and traders would then be balancing two forms of demand: essential transportation fuels with exceptionally strong margins and road binder needed for infrastructure programs.
For the bitumen market, that is a different story from simply saying refining is tight. The new evidence shows where the shortage is landing, how large the regional fuel deficit has become and how powerful the financial incentive to prioritize distillates now is.
Asia is receiving about 1.49 million fewer barrels per day of light and middle distillates than before the conflict, while Singapore gasoil margins remain more than three times their February level. If those conditions persist, Southeast Asian bitumen supply does not need to collapse for the market to tighten. It only needs bitumen to become the less attractive use of limited refinery flexibility.
By WPB
News, Bitumen, Asia, Indonesia, Philippines, Singapore, Refining, Gasoil, Diesel Margins, Vacuum Residue, Southeast Asia, Asphalt Supply
