The conflict that crippled Iranian crude output this year has had an unexpected beneficiary: India’s refining sector, which capitalized on a historic regional fuel price spike.

With the regional diesel benchmark soaring 83% and gasoline climbing 54%, Indian exporters collected far higher revenues per barrel even as shipped volumes actually contracted.

Total petroleum export earnings between April and September reached 2.59 trillion Indian rupees, equivalent to $27.2 billion, according to data from India’s oil ministry cited by the Economic Times.

That figure represents a 50% increase in rupee terms compared with the same six-month period a year earlier, a surge amplified in part by the Indian currency’s depreciation against the U.S. dollar.

In dollar terms, the gain was a still-substantial 40%, underscoring that the price windfall was real and not simply a product of currency movement.

A 16% drop in total export volumes was more than offset by the dramatic climb in benchmark prices, as the war in Iran strangled crude and refined product supply across the region and drove fuel costs to record levels.

Diesel emerged as the dominant engine of India’s export revenue, with earnings jumping 58% to 1.2 trillion rupees, or $12.6 billion, against an average regional benchmark price of $151 per barrel.

That diesel windfall came despite a 19% year-on-year fall in export volumes, illustrating how sharply per-unit revenues rose when the regional market tightened.

Petrol contributed meaningfully as well, with rupee-denominated earnings climbing 21% to 58,000 crore rupees and dollar-denominated earnings rising 13%, even as petrol shipment volumes dropped 24% and the average benchmark sat at $120 per barrel.

Together, diesel and petrol accounted for nearly 70% of India’s total petroleum export earnings in rupee terms, cementing the two fuels as the central pillars of the country’s refining export strategy.

India’s Oil Minister Hardeep Puri addressed the country’s export stance at an industry event in New Delhi last month, signaling no intention to restrict outbound shipments despite tight domestic conditions.

“We honor our commitments,” Puri said, adding that years of sustained investment have positioned India’s refining capacity to keep expanding and meet both domestic and international demand.

The minister’s remarks reflect a broader strategic posture in which India positions its growing refining infrastructure as a stabilizing force in global energy markets during a period of acute supply disruption.