Inside India’s Petrol Pricing System and the Tax Divide Driving State Gaps
India’s gas market is sending a complicated sign proper now. The Iran warfare has pushed global oil markets into shock, the Indian oil basket has surged above $150 a barrel, and the danger to key provide routes by the Middle East is rising. Yet on the pump, costs have barely moved.
That disconnect is precisely the place this story begins, as a result of petrol costs in India don’t transfer the best way most individuals assume they do. They are primarily based on a components that’s filtered by taxes, logistics, and coverage decisions that may dramatically change what customers really find yourself paying.
The start line is crude oil. India imports greater than 80% of the crude it consumes, which suggests international oil costs set the tone for every part that follows. When Brent or the Dubai Oman benchmark rises, India feels it shortly. But there is no such thing as a direct one-to-one passthrough. Since crude is bought in {dollars}, the rupee greenback trade price is a part of the story too. A weaker rupee raises the price of imports even when crude costs are flat, whereas a stronger rupee can offset a few of the stress.
Then comes refining and transport. Crude doesn’t go straight right into a shopper’s gas tank. It is imported, processed at refineries, after which moved by depots and distribution networks earlier than it reaches shops. By that stage, the worth already consists of the price of crude, freight, import prices, refining, inland transport, and the advertising and marketing margins of the oil firms.
From there, India’s three dominant oil advertising and marketing firms (Indian Oil, Bharat Petroleum, and Hindustan Petroleum) take over, collectively controlling about 90% of the retail market. These firms revise petrol and diesel costs each morning at 6 a.m. underneath the dynamic pricing system launched in 2017. That system changed the older mannequin underneath which costs have been revised each two weeks. In precept, it was meant to align home gas costs extra carefully with worldwide crude actions and forex shifts.
But that’s solely a part of the image.
The Tax System That Splits the Market
The actual divergence comes when taxes are added.
The retail worth of petrol in India is constructed on a simple construction: the bottom gas worth, plus central excise obligation, plus supplier fee, plus state VAT. The first three are comparatively straightforward to know. The final one is what creates the massive variations throughout the nation.
The central authorities’s excise obligation is essentially uniform, however state VAT isn’t. Each state authorities units its personal VAT price primarily based on its fiscal wants, and gas stays one of many best and most reliable sources of tax income. That is why petrol costs can fluctuate so sharply from one state to a different, even when the underlying gas price is nearly the identical.
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As of March 2026, the hole is giant. Petrol prices range from roughly ?82 a litre in Andaman and Nicobar to greater than ?109 in Andhra Pradesh, with many giant states clustered above ?100. That is an expansion of greater than ?25 a litre for basically the identical gas. Crude oil doesn’t clarify that distinction. State taxation does.
This can be why the query of GST retains arising. If petrol have been introduced under the GST regime, costs would possible develop into extra uniform throughout India. But states would lose a significant income lever. For that motive, the present construction stays in place, and customers proceed to face totally different costs relying on the place they replenish.
There are different smaller components that may affect the ultimate quantity. Areas farther from refineries or depots can carry considerably increased transport prices. Dealer commissions can fluctuate barely. Local distribution prices matter on the margin. But these are secondary. The important motive petrol costs differ state by state is taxation.
How India Is Smoothing the Oil Shock
That additionally helps clarify the present puzzle: if crude has surged so sharply, why have retail costs remained regular?
The reply is that the each day pricing mechanism is just not at all times utilized in a purely mechanical means. Oil advertising and marketing firms can absorb part of the shock, no less than for a time, particularly during times of utmost volatility. That seems to be what is going on now. Refiners are taking a few of the stress on their very own books, inventories stay out there, and the federal government is clearly attempting to keep away from a direct pass-through to customers.
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India has dealt with gas pricing this manner earlier than. Prices are formally deregulated, and the each day pricing mannequin stays in place, however in observe there may be room for delay, smoothing, and political judgment. Consumers are shielded from sudden spikes, however that additionally means they don’t at all times obtain the total profit when international costs fall.
So what determines petrol costs in India? At the broadest degree, it comes down to 3 layers. Global crude costs and trade charges set the bottom price. Oil advertising and marketing firms calculate and revise costs underneath the each day dynamic pricing system. Then taxes—particularly state VAT—decide what customers really pay.
And why does petrol worth differ from one state to a different? Because India does probably not have one unified gas market. It has a number of tax regimes sitting on high of the identical gas provide chain. The crude could also be international, the refining system could also be nationwide, and the pricing mechanism could also be up to date each day, however the ultimate invoice continues to be closely formed by the state.
That is why petrol costs in India can transfer slowly when oil surges, and why the identical litre of gas can price dramatically totally different quantities relying on the place you purchase it.
By Michael Kern for Oilprice.com
