Fuel prices from 1 September: an overview for franchise partners

On 31 August 2026, Slovenia’s government portal GOV.SI published the maximum permitted retail prices for petrol, diesel and heating oil for the period from 1 to 7 September 2026 inclusive. For Slovenia’s franchise community, the notice primarily provides a time-limited reference for checking transport expenditure and ordering fuel, rather than a basis for drawing conclusions about long-term cost trends.

Which prices apply during the published period

According to the notice on the government portal, the maximum permitted retail price is €1.623 per litre for petrol, €1.811 per litre for diesel and €1.412 per litre for heating oil. The published period starts on Tuesday 1 September and ends on Monday 7 September 2026, inclusive.

When using these figures, it is important to retain the terminology used in the notice: these are maximum permitted retail prices. They do not represent the average prices paid by businesses or the actual expenditure of an individual franchise outlet. Establishing those costs requires a review of invoices and the quantities of fuel purchased.

The notice provided does not include a comparison with the previous period. It therefore offers no basis for reporting that any of these fuels has become more or less expensive. Nor can it be used to calculate a percentage change or forecast prices after 7 September. What it adds to business planning is a published pricing framework for that specific week.

What franchise outlets should check

Franchise partners who use vehicles in their operations should read the notice alongside their own journey records. A practical review should distinguish between fuel type, purchase date, quantity purchased and price charged. This will make it clear which expenses fall within the published period and which belong to other accounting periods.

The price per litre alone does not show the full cost of an individual delivery or customer visit. In their internal calculations, partners should therefore account separately for fuel consumption, the number of journeys made and any other items they normally include in their records. This is a recommendation for reviewing costs, not a finding that costs have already changed for Slovenian franchises.

The same applies to heating oil. The published price can serve as a reference when checking a quotation, but before confirming an order, buyers should also check the delivery date, quantity, and all terms and line items in the quotation. A notice about the price of fuel does not, in itself, describe the full details of a particular order.

Comparisons between outlets should cover the same period. Comparing invoices from different weeks without clearly identifying their dates can obscure the distinction between a change in the purchase price and a change in business activity. A breakdown showing price and consumption separately is more useful.

Network-wide updates without unsupported conclusions

Franchisors can include the published figures in a brief operational update for partners. This should contain all three prices, the precise start and end dates of their validity, and a reference to GOV.SI as the source. It is important that, as the information is passed on, a time-limited figure does not become a general ‘September price’.

If the network prepares shared cost spreadsheets, each figure should also identify the relevant fuel. Petrol, diesel and heating oil prices are not interchangeable, so combining them into a single reference fuel price would not be useful. For meaningful internal comparisons, each outlet should enter its figures in the appropriate category.

The publication also provides no basis for claiming that franchise partners must change the prices of their services or products. Any pricing decisions should be based on their own calculations and applicable agreements, not solely on a single published figure. The available material does not indicate any change to contractual obligations within franchise networks either.

A weekly reference, not a long-term forecast

A broader assessment of the impact on Slovenia’s franchise community would require additional data: comparable prices from other periods, actual consumption and information about the operations of individual networks. This official notice does not contain that information, so its relevance remains limited to clearly specified prices and dates.

When preparing a plan for the whole of September, partners should therefore label these figures as a reference for the first published weekly period, not as a guarantee for the rest of the month. Before using them for later purchases, they should check for a more recent official notice.

Practical takeaway: enter the prices in your cost records alongside the period 1–7 September 2026, then compare them with actual invoices. Do not base ordering or pricing decisions solely on the price of a litre of fuel.