India supplied 60% of diesel passing through the Bab-el-Mandeb route in August, filling supply gaps left by Russia and the US. While this trend benefits Indian refineries, investors should note the impact of the newly reinstated windfall tax on fuel exports and potential constraints on raw material imports.
India has emerged as the primary source of diesel for European markets, capturing a 60% share of the fuel moving through the Bab-el-Mandeb route during August. This shift in global energy trade comes as Europe faces significant supply gaps due to the reduction in exports from traditional suppliers like Russia and the United States.
Why Global Supply is Tight
The reliance on Indian refineries has increased primarily because of disruptions elsewhere. Russian seaborne fuel exports have faced major hurdles, with volumes in late August dropping to an average of 150,000 barrels per day. This is an 81% decline compared to the five-year seasonal average. The instability is largely linked to 32 confirmed drone strikes on Russian refineries throughout July and August, which have damaged critical infrastructure and forced the country to curb exports.
At the same time, supply from the United States, which had previously stepped in to support European energy needs, has also slowed. In the second half of August, US diesel shipments to Europe fell by approximately 35%. With seasonal refinery maintenance expected to begin in the coming months, European markets are increasingly looking to India to secure their fuel requirements ahead of winter.
Challenges for Indian Refiners
While this export opportunity may appear positive for Indian refining margins, several operational and regulatory factors are currently creating pressure. First, India's own crude and condensate imports have tightened, falling to 3.8 million barrels per day in August, compared to 4.8 million a year earlier. Lower availability of raw material can limit the total output available for both domestic use and export.
Second, the government reintroduced a windfall tax on petrol exports effective September 1, 2026. This tax is designed to manage excess profits in the sector, and it acts as a direct headwind for refiners. Any significant portion of profits generated from these European exports may be impacted by these levies, which could weigh on the overall financial performance of oil marketing companies and private refiners.
Monitoring Future Supply and Demand
Looking ahead, investors should track how Indian refiners balance these high export demands with the needs of the domestic market. India’s domestic fuel consumption typically increases during the festive season, including the upcoming Diwali period in October. If domestic demand spikes, refiners may be forced to reduce export volumes to ensure local supply security. The interplay between international export prices, the cost of raw material imports, and the impact of the windfall tax will be the primary factors determining whether this surge in exports translates into sustained profit growth for the sector.