Oil crossed $110 a barrel this week on fears of an expanded Iran conflict. The headlines in India's financial press have been predictably breathless. What they haven't done is run the math.

Here it is.

India imports approximately 85% of its crude oil requirements. At current consumption levels, that's roughly 4.5 to 5 million barrels per day from overseas. Every $10 rise in the price of a barrel costs the Indian economy approximately $15 billion a year in additional import expenditure. That's not a rounding error. That's a structural hit to the current account, to the fiscal deficit via fuel subsidies, and to household budgets via fuel prices at the pump.

At $110 a barrel, we are roughly $30 above where most of India's Budget 2026 assumptions were anchored. That's $45 billion in unplanned import costs annualised — before any downstream effects on fertiliser prices, logistics, aviation, and manufacturing input costs.

The RBI Can Do a Lot. It Cannot Do Everything.

The Reserve Bank of India is one of the more competent central banks in the emerging world. It has managed currency volatility, inflation, and capital flows with reasonable deftness over the past several years. When oil goes up, the rupee weakens, imported inflation rises, and the RBI faces a classic dilemma: raise rates to defend the currency and risk choking growth, or let the rupee slide and absorb the inflation.

What the RBI cannot do is manufacture domestic oil. It cannot change the geography that puts India 85% dependent on global crude markets. It cannot will away a war in the Gulf that it has no influence over.

This is the asymmetry that India's economic commentary routinely underweights: India is a large, sophisticated economy with genuine strategic depth in many areas — but it has a single, structurally unresolved vulnerability at the centre of its energy system, and that vulnerability is priced in barrels and denominated in dollars.

The Iran Factor

The current spike is being driven by fears of a broader conflict involving Iran. Iran sits astride the Strait of Hormuz — the narrow passage through which approximately 20% of the world's oil supply travels every day. Any scenario in which that strait is disrupted, even temporarily, does not produce $110 oil. It produces $150 oil. Possibly more.

India's exposure here is not theoretical. The country is one of Iran's historically significant oil customers (subject to US sanctions regimes that have forced trade on and off over the years). More importantly, India simply cannot reroute 85% of its crude imports away from the Gulf on short notice. There is no short notice. There is no reroute.

What Should India Be Doing?

The medium-term answer is obvious and has been obvious for twenty years: accelerate domestic renewable energy capacity to structurally reduce the oil import bill, complete the strategic petroleum reserve buildout, and push harder on domestic refining flexibility.

The short-term answer is less comfortable: there isn't one. India is exposed. The RBI knows it. The Finance Ministry knows it. The market knows it.

What would help is if India's financial press knew it too, and said so clearly, rather than waiting for the next quarterly earnings season to notice that margins everywhere compressed because of an energy shock that was visible from a thousand miles away.

The math was there. Someone had to run it.