The efficient price of fuels rises this week to 2,021 euros in gasoline 95 simple and 2,115 euros in simple diesel, today the Regulator of Energy Services (ERSE).
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24/08/2026
by
Lusa
ANDthis indicator is an average weekly value calculated by ERSE taking into account international rates of refined fuels and freight, logistics, reserves, biofuels, retail and taxes.
The regulator points out, however, that this price is a “referential calculated by ERSE on the basis of the main costs associated with the availability of fuel to the consumer”, adding that “it is not a regulated price, a maximum price or a recommended price, since the public sales prices are freely defined by each operator”.
Thus, for the week from 24 to 30 August, the efficient pre-tax price is EUR 1,041/litre for plain petrol 95 and EUR 1,274/litre for simple diesel, and “after the inclusion of the ISP, the adding rate on CO2 and VAT”, is EUR 2,021/litre in simple petrol 95 and EUR 2,115/litre in simple diesel.
“ In view of the previous week, the efficient price increased by 1.9% in petrol and 1.1% in diesel oil," said ERSE, pointing out that “this evolution results mainly from the variation in international gas and diesel prices, which are the most directly related references to the cost of fuels sold at the gas stations.”.
In this period, international quotations for single petrol 95 and simple diesel increased by 4.7% and 2.0%, respectively.
The regulator points out that to understand the evolution of fuel prices, “the most important reference is not the quotation of the barrel of crude oil, but the international quotations of gasoline and diesel already refined”, considering shipping freights, logistics costs, the incorporation of biofuels, marketing and taxes.
In addition, it indicated that discounted prices, which “are a more accurate approximation to the average price actually paid by consumers”, this week, were below the efficient price at 2.2 cents per litre in plain petrol 95 and at 6.8 cents per litre in simple diesel, corresponding to deviations of -1.1% and -3.2%, respectively.
With regard to portico prices, the average sales prices to the public announced at the supply stations, as reported in the Single Energy Balcony, were 1.8 cents above the efficient price in petrol 95 simple and 1.4 cents per litre below in the simple diesel.

