# European fuel price volatility and regional adjustments > Live situation record from CLSTR: https://clstr.news/situations/european-fuel-price-volatility > Updated: 2026-08-31T11:08:07.000Z. Sources: 25. Developments: 3. Diesel prices in Slovakia have risen by approximately 30 cents per liter over the course of one month, pushing average costs above 1.80 euros per liter, with premium varieties exceeding 2.00 euros. This surge has narrowed the price gap between Slovakia and neighboring countries like the Czech Republic and Hungary. This increase is part of a broader trend affecting 21 of the 27 European Union member states, driven by global market tensions including Middle East supply complications, restrictions in the Strait of Hormuz, and Russian export restrictions following refinery damage. While no immediate physical fuel shortage exists, high volatility continues to impact the logistics, construction, and agricultural sectors. Recent shifts in global Brent crude prices, which fell below $80 per barrel due to more favorable news from the Middle East, have led to some price adjustments in neighboring regions. As of late August 2026, several Balkan and Central European nations have announced regulated price adjustments to stabilize markets. In Croatia, diesel prices are set to decrease by 0.07 EUR per liter, and blue diesel by 0.11 EUR per liter, while gasoline prices will rise by 0.01 EUR per liter. In North Macedonia, diesel prices will decrease by 6.5 denars per liter, while gasoline rises by 1 denar. Slovenia expects diesel to decrease by 9.2 cents per liter, alongside a 1.5 cent increase for 95-octane gasoline. In Montenegro, gasoline prices will see slight decreases, while Eurodiesel remains unchanged at 1.87 EUR per liter. Additionally, Austria has extended fuel price mitigation measures, including a tax reduction of 1.9 cents per liter, through September 30, 2026, to buffer against international wholesale market fluctuations. ## Claims - The Croatian government has issued new regulations for fuel prices effective September 2, 2025, through September 8, 2026. (corroborated by 2 sources) - In Croatia, the maximum retail price for gasoline will increase by one cent to 1.67 euros per liter. (corroborated by 2 sources) - In Croatia, the maximum retail price for diesel will decrease by seven cents to 1.79 euros per liter. (corroborated by 2 sources) - In Croatia, the maximum retail price for blue diesel will decrease by 11 cents to 1.21 euros per liter. (corroborated by 2 sources) - The excise tax for diesel in Croatia has increased by two cents per liter. (corroborated by 2 sources) - In Slovenia, the price of 95-octane gasoline will increase by 1.5 cents to 1.623 euros per liter. (single source) - In Slovenia, the price of diesel will decrease by 9.2 cents to 1.811 euros per liter. (single source) ## Timeline ### 2026-08-31: European nations adjust regulated fuel prices Various European countries, including Croatia, Slovenia, and North Macedonia, are adjusting regulated fuel prices, with diesel seeing decreases while gasoline prices rise in several regions. 15 sources. https://clstr.news/cluster/croatia-and-slovenia-announce-updated-regulated-fuel-prices ### 2026-08-09: Diesel prices in Slovakia rise by 30 cents in one month Diesel prices in Slovakia have jumped by roughly 30 cents in one month, reaching average levels of 1.85 euros per liter due to global market tensions and supply constraints. 2 sources. https://clstr.news/cluster/diesel-prices-in-slovakia-rise-by-30-cents-in-one-month ### 2026-08-08: Slovenia fuel prices expected to decrease from Tuesday Slovenian fuel prices, including diesel and heating oil, are expected to drop by approximately 12 cents per liter starting Tuesday following a decline in Brent crude oil prices. 7 sources. https://clstr.news/cluster/slovenia-fuel-prices-expected-to-decrease-from-tuesday --- Cite as: European fuel price volatility and regional adjustments. CLSTR, https://clstr.news/situations/european-fuel-price-volatility