Dar es Salaam. The Energy and Water Utilities Regulatory Authority (EWURA) has reduced the cap prices of petrol and diesel by more than Sh100 per litre for September, offering some relief to motorists and businesses amid continued volatility in global fuel markets.
Under the new pricing structure, petrol has fallen by Sh102 per litre, while diesel has declined by Sh101 per litre, according to EWURA’s latest public notice.
The new cap prices took effect at 12:01am on Wednesday, September 2, 2026, and apply to petroleum products sold in Tanzania Mainland.
In Dar es Salaam, the retail cap price for petrol has been set at Sh3,796 per litre, while diesel will sell for a maximum of Sh3,877 per litre. The cap price for kerosene is Sh3,713 per litre.
In Tanga, petrol is capped at Sh3,872 per litre and diesel at Sh3,953, while in Mtwara the corresponding prices are Sh3,909 and Sh3,990 per litre.
EWURA said the latest adjustment follows its continued monitoring of petroleum prices, noting that global fuel prices remained volatile because of the continuing conflict in the Middle East.
The regulator also linked the reduction to government efforts to ensure petroleum products remain affordable in the domestic market.
The lower fuel prices could ease operating costs for transporters, motorists and businesses that depend heavily on petroleum products.
Diesel, in particular, is widely used in commercial transport, logistics and industrial activities, meaning changes in its price can affect the cost of moving people and goods.
However, the extent to which the reduction will translate into lower transport and commodity prices will depend on how businesses respond to the lower input costs and developments in other operating expenses.
EWURA has directed retailers to sell petroleum products at the applicable cap prices published for their respective locations, while wholesalers must comply with the wholesale prices set by the regulator.
The authority warned that legal action would be taken against retailers or wholesalers who fail to comply with the directives.
Under the pricing framework, oil marketing companies may sell below the applicable cap price to gain a competitive advantage, provided they do not sell below the prescribed floor price.
EWURA has also reminded petrol stations to display their prices prominently on boards, including any discounts, trade incentives or promotions.
Consumers are encouraged to compare prices and services among stations.
The regulator further requires retailers to issue receipts generated through Electronic Fiscal Pump Printers.
Consumers have been urged to keep the receipts, which should show the station, date, product and price per litre and can be used when lodging complaints over prices above the approved cap or fuel quality.
The September cap prices vary across the country depending on location and transport-related costs.
While Dar es Salaam has a petrol cap of Sh3,796 per litre, the price rises to Sh4,109 in Kyerwa and Sh4,103 in Karagwe, reflecting geographical differences in the cost of supplying petroleum products.
EWURA said consumers can access the published cap prices through mobile phones by dialling 15200#, with the service available free of charge across all mobile networks.
The latest reduction comes as global petroleum markets continue to face uncertainty, underscoring the importance of monitoring international price movements and ensuring that changes in global costs are reflected transparently in the domestic market.
