Brent Crude Above Ninety Dollars Exposes Asian Importers to Prolonged Shock

Geopolitics keeps Brent elevated

MRA Advisory Group's September 2026 market outlook identified renewed escalation between the United States and Iran as the most immediate geopolitical issue facing investors. Military action near the Strait of Hormuz pushed Brent crude back above ninety dollars per barrel at the end of August. MRA warned that higher oil prices could increase headline inflation, pressure consumer spending, raise transportation costs, and complicate Federal Reserve policy.

OCBC strategists raised their end-2026 Brent forecast to eighty dollars from seventy-five, noting that more than five months into the Middle East conflict, oil prices remained driven by geopolitics rather than fundamentals. Brent rose as high as ninety-one dollars fifty-two during the August 30 session, its highest since August 25, after the US and Iran resumed military attacks.

Asia's structural dependence on Gulf crude

Wood Mackenzie reported that before the war, around eighty percent of the crude passing through Hormuz was delivered to Asian refineries. Japan and South Korea sourced more than ninety and seventy percent respectively of their oil imports from the Gulf. China and India, the world's two largest oil importers, had diversified toward Russia and the US but still depended on the Middle East for roughly half their crude supplies.

India's crude basket climbed close to a hundred dollars a barrel amid renewed West Asia tensions in early September, more than three dollars above Brent. Nearly ninety percent of India's oil requirement is imported, and the crude import bill reached sixty-three point four billion dollars in the first four months of fiscal 2027 alone — fifty-six point five percent higher year-on-year.

Diesel, not crude, is the bottleneck

OCBC analysts argued that the oil market had largely adjusted to crude supply disruptions by depleting buffers, but the key bottleneck had shifted to diesel. Inventories are falling, transport costs are rising, and diesel shortages are emerging as the constraint keeping geopolitical risk embedded in prices. US West Texas Intermediate settled at eighty-five dollars seventy-six on August 31, with the Brent-WTI spread reflecting Atlantic basin tightness.

Financial Express reported that West Asia traditionally supplied sixty to sixty-five percent of India's crude imports, but flows had fallen sharply with Hormuz disruption. Indian refiners diversified toward Russia, Venezuela, and other sources, though longer shipping routes and the characteristics of alternative grades can raise costs even when headline Brent is below the Indian basket price.

Fiscal pressure across the region

Wood Mackenzie estimated that if oil remained at a hundred dollars for four months, Asia's total fuel subsidy bill would exceed eighty billion dollars. India would face a cost equivalent to zero point seven percent of GDP and seven point two percent of government revenue. Indonesia risked breaching its legal three percent fiscal deficit limit if subsidy payments persisted.

OCBC identified the Philippines, Thailand, Singapore, Taiwan, and South Korea as the ASEAN economies most exposed to sustained higher oil prices. The Asian region remains a net importer of crude, gas, and coal, and higher oil prices reverberate across other commodities especially natural gas, further exacerbating energy price shock risks as the Northern Hemisphere heads toward winter.