Cambodia's Fuel Pivot:
How a Middle East War
Reshapes Asian Supply Chains
Cambodia imports every drop of petroleum it uses. When Vietnam and China cut fuel exports to protect their own stocks — because of a war in the Middle East — Cambodia pivoted to Singapore and Malaysia within days. Here is what that pivot reveals about energy vulnerability in a connected world.
A war in the Persian Gulf is reshaping fuel supply chains in Southeast Asia — not through dramatic crisis, but through the quieter mechanism of cascading precaution. Vietnam restricts exports to protect its own supply. China does the same. Cambodia, which has no domestic oil production and no refining capacity, finds itself scrambling for alternatives. Singapore and Malaysia step into the gap. One-third of Cambodia's petrol stations close temporarily. And a country of 17 million people gets a close-up view of how fragile its energy position truly is.
The CascadeHow a Gulf War Reaches a Cambodian Petrol Station
The mechanism by which a conflict in the Persian Gulf disrupts fuel supply to Cambodia is not complex — but it operates through multiple steps, each of which compounds the effects of the one before. Understanding those steps is essential to understanding both what is happening in Cambodia and what it reveals about the broader fragility of Southeast Asian energy supply.
Step one: The US-Israel-Iran war disrupts oil flows through the Strait of Hormuz and triggers strikes on Gulf energy infrastructure, including Qatar's Ras Laffan LNG complex. Oil prices surge above $110 per barrel. Global supply tightens suddenly and sharply.
Step two: Vietnam and China — major regional refiners and fuel traders — respond rationally to the supply squeeze by prioritising their own domestic requirements. Both impose temporary export restrictions on petroleum products until at least end-March. This is not aggression against Cambodia; it is self-protective energy security management. But the effect on downstream importers like Cambodia is immediate.
Step three: Cambodia, which has no domestic production and no refining capacity, suddenly finds that the suppliers responsible for the majority of its petroleum imports are no longer available. The government moves rapidly to identify alternatives — and Energy Minister Keo Rottanak announces on March 18 that Singapore and Malaysia are filling the gap.
The AlternativeSingapore and Malaysia Step Into the Gap
Singapore's emergence as Cambodia's primary fuel hub in this crisis is not accidental. The city-state is one of the world's most important petroleum refining and trading centres — its advanced port infrastructure, storage facilities, and trading ecosystem make it capable of rapidly scaling up deliveries to nearby markets when demand shifts. Malaysia similarly has significant refining capacity and established trading relationships across Southeast Asia.
In 2024, Singapore and Malaysia together accounted for approximately a third of Cambodia's petroleum imports — a substantial base from which to expand. Thailand — which historically accounted for a significant share — has been absent from Cambodia's supply mix due to a separate bilateral trade dispute that predates the current crisis. That absence has made the Singapore-Malaysia pivot more urgent than it might otherwise have been.
"We are working with multiple suppliers to ensure steady fuel replenishment. Singapore and Malaysia are currently filling the gap, and our stockpiles remain at acceptable levels."
— Keo Rottanak, Cambodia Energy Minister, speaking to Reuters, March 18, 2026
The pivot comes at a cost. Singapore and Malaysia are geographically further from Cambodia's import points than Vietnam, and the logistics chain — shipping fuel by sea rather than overland or across a shared border — is both slower and more expensive. At a moment when oil prices are already elevated, the additional logistics premium is feeding directly into Cambodian retail fuel prices.
The NumbersWhat the Trade Data Shows
Mar 1–18, vs same period last year
despite the increase year-on-year
in January–February 2026 alone
trade surge in early 2026
The data tells a story of rapid adaptation but incomplete substitution. Singapore and Malaysia are delivering more — significantly more than this time last year — but the absolute volume still falls well short of what Cambodia was receiving from its traditional suppliers before the crisis. The difference is being absorbed through reserve drawdown and reduced consumption.
The 190–209% surge in Cambodia-Singapore bilateral imports in January and February 2026 predates some of the most acute crisis moments — suggesting that Singapore had already begun positioning itself as a more central hub for Cambodian fuel as regional supply dynamics shifted in the early weeks of the year. The March acceleration deepens a trend that was already underway.
On the GroundThe Petrol Station Closures
of Cambodia's approximately 6,300 petrol stations closed temporarily in mid-March, amid shortages and stockpiling concerns by station operators. Most have since reopened as emergency supply arrangements took effect. The closures were concentrated in areas furthest from Phnom Penh's logistics hub and in smaller provincial centres with limited storage capacity.
The station closures, though temporary, had immediate downstream effects on Cambodian daily life. Transport costs — already sensitive to fuel price movements in an economy where motorbikes and tuk-tuks are primary transportation — spiked in affected areas. Food prices in markets served by closed stations or disrupted transport routes saw early-stage increases that vendors attributed directly to fuel availability and cost.
The government's reassurance that stockpiles remain at approximately 21 days' supply under normal conditions is meaningful — it represents a buffer significant enough to manage the current disruption without emergency measures — but it also underscores how little margin Cambodia has. Twenty-one days of supply is not a comfortable reserve for a country with no domestic production in a world where Middle East disruptions can extend for months.
The Deeper ProblemCambodia's Structural Energy Vulnerability
Cambodia's current predicament is not primarily a product of the Iran war or of Vietnamese and Chinese export restrictions. It is a product of a structural energy situation that makes Cambodia one of the most exposed small economies in Southeast Asia to exactly this kind of external shock.
- Zero Domestic Production Cambodia has no significant domestic oil or gas production. Offshore exploration has not yielded commercially viable fields. Every litre of petroleum consumed must be imported.
- No Refining Capacity Cambodia has no oil refineries. Unlike Vietnam or China, it cannot purchase crude oil and process it locally — it must import refined products at retail-adjacent prices rather than crude at bulk prices.
- Supplier Concentration In 2024, Thailand and Vietnam together accounted for over 60% of petroleum imports. With Thailand already absent due to a bilateral dispute, losing Vietnam's supply meant losing the dominant source overnight.
- Limited Strategic Reserve The ~21 days of stockpile under normal conditions is well below the 90-day reserve recommended by the International Energy Agency for energy-secure nations. Cambodia cannot absorb a prolonged supply disruption.
- No Grid Interconnection Cambodia is not yet connected to a regional energy grid that would allow it to receive electricity from neighbours in shortfall situations. Energy Minister Rottanak has specifically called for faster ASEAN grid interconnection progress.
Partial CushionRenewables — The One Structural Positive
Energy Minister Rottanak noted that Cambodia's expansion of solar and hydroelectric power generation has made the country "less susceptible to 100% shock" from petroleum volatility than it would have been five years ago. As renewables supply a growing share of electricity generation, the petroleum dependence — while still total for transport fuels — is no longer equivalent to petroleum dependence for all energy. This is a genuine structural improvement that has provided some insulation from the current crisis — though it does nothing for the transport and logistics sectors that are the most immediately affected by petrol and diesel shortages.
Cambodia has invested significantly in hydroelectric capacity over the past decade — a development that has been controversial environmentally but has reduced electricity-sector exposure to fuel price volatility. Solar deployment has also accelerated. The Minister's framing — that these investments are paying off in crisis resilience — is accurate in its narrow sense, while acknowledging that the transport economy remains entirely petroleum-dependent.
Wider PictureSoutheast Asia's Cascading Vulnerabilities
Cambodia's situation is a concentrated version of a broader regional dynamic that the Iran war has exposed across Southeast Asia. The region's supply chains for petroleum products are deeply interconnected — with larger economies like Vietnam, China, and Thailand serving as both refiners and re-exporters to smaller neighbours. When those larger economies face supply stress and respond by restricting exports, the effects cascade rapidly to downstream importers.
This is not unique to petroleum. The same dynamic operates for food, semiconductor components, and other globally traded commodities with concentrated supply chains. But the speed and visibility of fuel shortages — empty petrol stations, rising transport costs, immediate consumer impact — makes petroleum a particularly clear case study in how global shocks travel through regional trade networks.
Analysts describe Cambodia's pivot as a demonstration of flexibility — the ability to rapidly redirect procurement to alternative suppliers is itself a form of resilience. But they also note its structural limits: Singapore and Malaysia can partially substitute for Vietnam and China in the short term, but at higher cost and lower volume. If the Middle East disruption extends for months rather than weeks, the partial substitution may prove insufficient.
What Comes NextShort Pivot or Long-Term Structural Shift?
Cambodia's government has managed the immediate crisis with reasonable effectiveness — the rapid pivot to Singapore and Malaysia has prevented a catastrophic supply breakdown, stockpiles are at acceptable levels, and the petrol station closures that alarmed residents in mid-March are largely resolved. There is no immediate crisis.
The medium-term picture depends almost entirely on two variables outside Cambodia's control: the duration of the Iran war and its effect on Gulf energy exports, and the duration of Vietnam and China's export restrictions. If both normalise by end-March as currently indicated, Cambodia's supply situation should stabilise — at higher prices than before, but without acute shortage.
If the Middle East disruption extends — if Hormuz access remains constrained, if Gulf facilities take months to repair, if regional suppliers extend their own restrictions — Cambodia's 21-day reserve buffer starts to look significantly less comfortable. The government is working with multiple suppliers to diversify and replenish, but diversification comes at a price premium that will flow through to retail fuel costs, transport, food prices, and the broader cost of living in one of Southeast Asia's smaller and more import-dependent economies.
The structural lesson is clear — and Energy Minister Rottanak has been explicit about it: Cambodia's energy security requires domestic renewable expansion to reduce petroleum dependence, strategic reserve development to extend the buffer beyond 21 days, and regional grid interconnection through ASEAN to create alternative pathways when individual supply routes are disrupted. Those are medium-to-long-term investments. The current crisis is a short-term test of an infrastructure that was never designed to absorb it comfortably.
