New Delhi: India has reduced export duties on key petroleum products, adjusting policy in response to elevated global crude prices and shifting refining economics. The move follows a sharp increase in levies earlier in April and reflects a more calibrated approach amid volatile oil markets.
The decision comes against the backdrop of crude prices exceeding $110 per barrel, driven by supply concerns stemming from tensions around the Strait of Hormuz.
Duties reduced after recent hike
Effective May 1, the government has cut export duties on diesel and aviation turbine fuel (ATF):
- Diesel export duty: reduced to ₹23 per liter from ₹55.5 per liter
- ATF export duty: cut to ₹33 per liter from ₹42 per liter
- Petrol export duty: remains at zero
- Excise duty on domestic petrol and diesel: unchanged
The reduction is significant, particularly for diesel, where the duty has been brought down by more than 50%. This follows the April 11 revision, when duties were sharply increased to curb exports and ensure domestic availability.
A policy that tracks global crude
Export duties on petroleum products, often termed windfall taxes, are revised periodically, typically every fortnight, based on global crude prices and refining margins.
These duties were reintroduced in March 2026 after being largely withdrawn in 2023, as crude prices began to climb again. The recent volatility, with Brent crude rising from around $75–$80 per barrel in early 2026 to over $110 per barrel, has led to frequent adjustments.
What stands out is the responsiveness. The government is using export duties as a flexible tool to manage both domestic supply and refiners’ profitability.
Why this matters for refiners
India is one of the world’s largest refining hubs, with a total refining capacity of over 250 million tonnes per annum (mtpa). A significant portion of output, especially diesel, is exported.
For refiners, export duties directly affect realizations:
- Lower duties improve export margins when global prices are high
- High duties discourage exports and redirect supply to domestic markets
- Refining margins (GRMs) are closely linked to global product prices
At the same time, retail fuel prices in India have remained largely unchanged since mid-2022. This has put pressure on marketing margins for oil companies such as Indian Oil, Bharat Petroleum, and Hindustan Petroleum, making export flexibility more important.
Aviation and transport: indirect but real impact
The reduction in ATF export duty has implications for the aviation sector, even if indirectly.
ATF accounts for 35–45% of an airline’s operating cost in India. While domestic ATF prices are influenced by international benchmarks and local taxes, changes in export duties affect supply dynamics and pricing trends.
- Lower export duty can ease supply-side pressure
- Helps moderate sharp increases in ATF prices over time
- Supports airline cost stability in a high crude environment
Similarly, diesel is the backbone of India’s transport and logistics sector, accounting for a majority of freight movement.
Link to global supply risks
The policy shift is closely tied to global developments.
The Strait of Hormuz, which handles 17–20 million barrels of oil per day (about 20% of global supply), has seen heightened tensions. This has pushed crude prices higher and increased volatility in fuel markets.
For India:
- Over 85% of crude oil is imported
- Every $10 increase in crude significantly raises the annual import bill
- Higher oil prices contribute to inflation, especially in transport and food
These factors make it necessary for policymakers to respond quickly to global price signals.
A balancing act between supply and margins
The government’s approach reflects a constant trade-off between domestic supply security and industry profitability.
- Higher export duty: ensures domestic availability, limits exports
- Lower export duty: improves refinery margins, supports exports
The latest cut suggests that domestic supply concerns have eased somewhat, allowing room to support refiners facing margin pressure.
The broader takeaway
This is part of a broader pattern where fuel-related taxes are adjusted dynamically rather than kept static. Export duties, in particular, have become a key policy lever in managing oil market volatility.
For businesses, especially refiners, airlines, and logistics firms, such changes directly influence cost structures and margins. For the wider economy, the impact is more gradual but still significant, feeding into inflation and fiscal dynamics over time.
In a high and uncertain crude price environment, policy flexibility remains critical, and the latest move reflects an attempt to stay aligned with rapidly changing global conditions.
