Oil above $90 means Brent crude, the global oil benchmark, is trading above $90 per barrel, raising import costs for economies that depend on foreign energy. For Asian oil importers, that can weaken trade balances, lift inflation, and pressure local currencies. On August 18, 2026, Brent moved above $91 as renewed U.S. Iran tensions raised supply concerns.

Key Takeaways

• The Indian rupee, Philippine peso, Indonesian rupiah, and Thai baht are among the Asian currencies most exposed to higher oil.
• More expensive crude increases the U.S. dollars needed to pay for energy imports.
• India faces strong pressure because it imports most of the crude oil it consumes.
• The Philippines is vulnerable because higher fuel costs can quickly feed into inflation.
• Indonesia has commodity exports that offer some support, but it remains a net oil importer.
• The Malaysian ringgit is relatively better placed because Malaysia is a net energy exporter.

Why Does Oil Above $90 Pressure Asian Currencies?

Most global oil is priced in U.S. dollars. When crude becomes more expensive, an oil importing country needs more dollars to buy the same amount of fuel. That can increase demand for dollars and weaken the local currency.

Higher oil can also worsen a country’s trade and current account balance. The IMF says high energy prices weaken external balances, raise inflation, and add financial pressure on economies that depend on imported fossil fuels.

A weaker currency can then make dollar priced oil even more expensive. Central banks may have to choose between supporting economic growth, controlling inflation, and limiting currency weakness.

Which Asian Currencies Face the Most Pressure?

Indian Rupee

The Indian rupee is one of the clearest oil sensitive currencies. India imports about 90% of its crude needs, so higher oil prices quickly increase its import bill.

Reuters reported on August 18 that Brent above $90 was adding to downside risks for the rupee, while the Reserve Bank of India continued intervening in the foreign exchange market. If oil keeps rising while U.S. yields stay high, USD/INR could remain under upward pressure.

Philippine Peso

The Philippine peso is vulnerable because the country depends heavily on imported energy. Higher crude can raise fuel, transport, electricity, and business costs.

The peso becomes more exposed when high oil is combined with capital outflows or a stronger dollar. Reuters identified the Philippines alongside India and Indonesia as particularly vulnerable during the 2026 energy shock because all three faced pressure from oil imports and weaker investor flows.

For traders, sustained high oil can mean a larger import bill and more demand for dollars, which can support USD/PHP.

Indonesian Rupiah

Indonesia exports coal, palm oil, and other commodities, which can bring foreign currency into the economy. However, it remains an oil importer, so expensive crude can still hurt its external balance.

The rupiah is also sensitive to global capital flows. Earlier in the 2026 oil shock, it reached record lows and Bank Indonesia raised rates and intervened to support the currency.

Thai Baht

Thailand is another market to watch when oil stays high. The IMF says oil and gas use exceeds 10% of GDP in Thailand, making the economy relatively energy intensive.

Higher energy costs can weaken the trade balance, raise inflation, and reduce consumer spending. Reuters has also grouped the baht with the rupee and peso among currencies that tend to face pressure when oil rises.

What About the Korean Won and Japanese Yen?

South Korea and Japan are also major energy importers, so both remain exposed to expensive oil. However, their currencies are heavily influenced by other factors, including technology exports, interest rates, and central bank policy. Reuters has previously identified both economies as relatively exposed to a prolonged Asian energy shock.

The Korean won recently received support from exporter flows and technology related factors, while the yen remains closely tied to expectations for Bank of Japan policy. Oil matters, but it is not the only driver.

Which Asian Currencies Are Relatively Better Protected?

The Malaysian ringgit is relatively better positioned because Malaysia is a net energy exporter. Higher energy prices can support export revenues and reduce the negative trade effect experienced by oil importing economies.

China is also more insulated than many regional peers, although a prolonged oil shock can still hurt growth through higher transport and industrial costs.

What Should Forex Traders Watch Next?

The direction of oil matters more than one price level. Traders should watch whether Brent holds above $90, moves toward $100, or falls as supply fears ease.

The Strait of Hormuz remains a key market risk because Asia buys a large share of the oil moving through the route. U.S. Treasury yields, the U.S. dollar, local inflation, and central bank intervention in India, Indonesia, and the Philippines are also important.

Frequently Asked Questions

Which Asian currency is most affected by high oil prices?

The Indian rupee is among the most directly exposed because India imports most of its crude oil. The Philippine peso, Indonesian rupiah, and Thai baht are also vulnerable when oil prices rise.

Why does expensive oil weaken the Philippine peso?

Higher oil increases the Philippines’ import bill. Importers need more U.S. dollars to pay for energy, which can increase dollar demand and put pressure on the peso.

Does oil above $90 always make USD/PHP go up?

No. Oil is only one driver of USD/PHP. U.S. interest rates, the dollar, Philippine inflation, BSP policy, capital flows, and risk sentiment can strengthen or offset the effect of higher oil.

Is the Indonesian rupiah helped by higher commodity prices?

Sometimes. Strong coal, palm oil, and other commodity exports can support Indonesia’s foreign currency income. However, expensive crude can still increase the country’s energy import bill and pressure the rupiah.

Which Asian currency can benefit from higher oil prices?

The Malaysian ringgit can be relatively supported because Malaysia is a net energy exporter. Higher energy prices can improve export revenues, although broad risk aversion can still weaken the currency.

Conclusion

Oil above $90 puts the most pressure on Asian currencies from economies that import large amounts of energy and depend on foreign capital. The rupee, peso, rupiah, and baht deserve close attention while crude stays elevated, especially if higher oil comes with a stronger dollar or rising U.S. yields.