Petrol and diesel prices remain a major concern for Indian households, motorists and businesses as international crude oil markets face renewed volatility. Global oil prices have moved higher amid increasing geopolitical uncertainty involving the United States and Iran, raising concerns about the possible impact on fuel costs.

Despite the movement in international crude prices, petrol and diesel rates in India remained unchanged on August 26, 2026, according to the rates cited in the report. This means consumers in major cities have not faced a fresh revision in retail fuel prices today.

Domestic petrol and diesel prices are influenced by several factors, including international crude oil rates, currency movements, taxes, transportation costs and pricing decisions by oil marketing companies. State-run oil companies such as Indian Oil Corporation (IOCL), Bharat Petroleum Corporation Limited (BPCL) and Hindustan Petroleum Corporation Limited (HPCL) regularly publish city-wise fuel prices.

Here is a look at the latest petrol and diesel rates in major Indian cities and the global factors currently affecting the oil market.

Crude Oil Prices Rise Again Amid Global Uncertainty

International crude oil prices have witnessed renewed upward pressure after falling by nearly 2% in the previous trading session.

The report cited Brent crude at around $92 per barrel, while West Texas Intermediate (WTI) crude was trading near $85 per barrel.

One of the major factors being closely watched by global energy markets is the evolving relationship between the United States and Iran. Any escalation that threatens crude oil supplies, exports or important shipping routes can quickly influence international prices.

Oil markets often react sharply to geopolitical developments because even the possibility of supply disruption can prompt traders to price additional risk into crude oil contracts.

Why US-Iran Developments Matter for Oil Markets

The report said the United States could increase economic pressure on Iran, adding another layer of uncertainty to international energy markets.

US Treasury Secretary Scott Bessent was cited as indicating that countries maintaining commercial dealings with Iran could potentially be given a deadline to end such relationships or face unilateral sanctions.

Such developments are important for oil markets because restrictions affecting a major crude-producing region can influence expectations about future global supply.

However, the direction of crude oil prices will depend on how the situation develops. If diplomatic efforts reduce tensions, some of the geopolitical risk premium currently reflected in international oil prices could ease. On the other hand, a prolonged escalation or disruption to energy supplies could keep crude prices elevated.

Petrol Price Today in Major Indian Cities

According to the fuel rates provided in the report, petrol prices on August 26 are:

• Delhi: ₹102.12 per litre
• Mumbai: ₹111.31 per litre
• Kolkata: ₹113.51 per litre
• Chennai: ₹107.78 per litre
• Bengaluru: ₹110.82 per litre

Among these five cities, Delhi has the lowest quoted petrol price, while Kolkata has the highest.

Retail prices can differ considerably between cities because state-level taxes and other local charges vary across the country.

Diesel Price Today in Major Cities

Diesel prices quoted for August 26 are:

• Delhi: ₹95.20 per litre
• Mumbai: ₹97.97 per litre
• Kolkata: ₹99.82 per litre
• Chennai: ₹99.56 per litre
• Bengaluru: ₹98.77 per litre

Diesel prices are particularly important for the broader economy because the fuel is widely used in commercial transportation. Significant changes in diesel costs can affect freight expenses and, indirectly, prices of goods transported across the country.

Where Are Petrol and Diesel Prices Relatively Low?

Port Blair in the Andaman and Nicobar Islands continues to be cited among the places with comparatively inexpensive fuel in India.

According to the figures mentioned in the report, petrol is available at around ₹88.66 per litre, while diesel is priced in the range of approximately ₹80 to ₹85 per litre.

Differences in local taxation are among the major reasons why fuel prices can be substantially lower in some regions than in large metropolitan cities.

Which Cities Have Higher Fuel Prices?

Hyderabad is cited among the cities where consumers face relatively expensive petrol and diesel.

The report puts petrol prices there at approximately ₹112.81 to ₹115.73 per litre, while diesel is quoted at around ₹103.82 per litre.

However, motorists should check the latest city-specific rate from their oil marketing company before purchasing fuel, as prices can vary by location and dealer.

Why Petrol and Diesel Prices Differ Across India

Even when the underlying fuel cost is similar, the final amount paid by consumers can vary considerably from one state to another.

Retail fuel prices include multiple components, such as the base price, central levies, state taxes, dealer commission and transportation-related expenses. Differences in state taxation are therefore one of the main reasons petrol or diesel may cost several rupees more in one city than another.

Fuel rates can also vary slightly between individual outlets because of transportation and local pricing factors.

What Should Consumers Watch Next?

For Indian motorists, the biggest factor to monitor in the coming days will be the direction of international crude oil prices. A sustained increase in crude prices can put pressure on the domestic fuel market, particularly if elevated prices continue for an extended period.

At the same time, international prices do not automatically translate into an immediate change at Indian petrol pumps. Domestic pricing depends on several variables, including exchange rates, taxation and decisions taken by oil marketing companies.

For now, according to the rates cited for August 26, 2026, petrol and diesel prices in major Indian cities have not undergone a fresh revision despite volatility in the global crude oil market.