Crude oil has crashed, but your fuel bill has not. Petrol costs about Rs 102.12 a litre and diesel about Rs 95.20 in Delhi as of June 29, 2026, unchanged since May 25 even though crude oil has fallen roughly 40% from its 2026 peak, because taxes and fixed costs, not crude, dominate the pump price. It is the question millions of drivers ask every time oil makes headlines: if crude is cheaper, why is petrol not?
The short answer is that the crude oil price is only one slice of what you pay. The rest is tax, dealer margin, and the oil companies' own profit, and those do not fall just because crude does.
Petrol and Diesel Price by City
Pump prices vary across India mainly because each state charges its own VAT on top of a similar base price. Here are the rates on June 29, 2026.
| City | Petrol (per litre) | Diesel (per litre) |
|---|---|---|
| Delhi | Rs 102.12 | Rs 95.20 |
| Mumbai | Rs 111.21 | Rs 97.83 |
| Kolkata | Rs 113.51 | Rs 99.82 |
| Chennai | Rs 107.77 | Rs 99.55 |
The gap between Delhi and Kolkata, more than Rs 11 a litre on petrol, is almost entirely down to state taxes, since the underlying fuel costs the oil companies roughly the same in both cities.
Why Pump Prices Stay Flat
The disconnect between crude and the pump is by design. Roughly half of what you pay for petrol is central excise duty and state VAT, with dealer commission and the oil companies' margin on top, leaving the crude oil cost as just one component. So a 40% fall in crude does not translate into anything close to a 40% fall at the pump.
There is also a recovery effect. When crude was high during the Iran conflict, oil marketing companies like Indian Oil, BPCL, and HPCL absorbed some of the pain to keep pump prices steady. Now that crude has fallen, those companies first rebuild their margins and recover earlier losses before passing on relief, which is why prices have stayed frozen since the last revision on May 25, when petrol was raised about Rs 2.61 and diesel about Rs 2.71 a litre.
The cheaper crude is showing up, just not at the pump yet. You can track the raw input on our crude oil price today page, and the wider market reaction in our Indian stock market today wrap.
Why This Matters
For households, fuel is a big and visible cost, and frozen pump prices during a crude crash feel like a missed saving. The benefit of cheaper oil is flowing to the government, through stable tax revenue, and to oil companies, through fatter margins, rather than to drivers. That is a policy choice as much as a market outcome.
For the economy, there is an upside even without a pump cut. Cheaper crude eases India's import bill and supports the rupee, and healthier oil company margins can mean larger dividends to the government, which owns big stakes in them. The relief is real; it is just distributed differently from what drivers hope for.
What To Watch
The first thing to watch is crude oil. If prices stay low for several weeks, the case for a pump-price cut strengthens, since oil companies will have rebuilt margins and the political pressure to pass on relief grows.
The second is any government move on excise duty. A duty cut is the fastest way to lower pump prices, and governments sometimes use it to ease inflation or ahead of elections, so policy signals matter as much as the crude price.
The third is the rupee. Since India imports oil in dollars, a weaker rupee can offset cheaper crude, keeping the landed cost of fuel high even when global prices fall, which is one reason pump prices can stay sticky.
The Bigger Picture
Daily price revision was meant to link pump prices closely to global crude, but in practice prices move in slow, infrequent steps rather than tracking oil day to day. For consumers, the lesson is that a crude crash rarely means an instant saving at the pump, because the tax and margin layers act as a buffer in both directions.
That buffer cuts both ways, which is the part drivers forget. When crude spiked above $110 during the Iran war, pump prices did not jump the full amount either, because the same companies absorbed part of the rise. The system smooths the extremes, so neither the spike nor the crash passes through in full. With crude now near multi-month lows, the question is simply how much of the relief, and when, finally reaches the pump.