Serbia’s industrial economy is facing renewed cost pressure from rising petroleum-related inputs, with imported coke and refined petroleum products recording one of the strongest increases among industrial categories in June 2026. Prices for imported coke and refined petroleum products were 23% higher year on year, 31.1% above December 2025 levels and 9.5% higher compared with May 2026.
The increase represents a significant challenge for companies across the physical economy because petroleum products are embedded throughout transport networks, construction operations, agricultural production and industrial supply chains.
Fuel increases affect multiple business sectors
Petroleum products directly influence the cost structure of road transport operators through diesel consumption, while construction companies face higher expenses for fuel-powered machinery and equipment. Agricultural producers are affected through tractor operations, harvesting equipment and transportation activities. Mining and quarrying companies also face higher costs due to the operation of heavy vehicle fleets.
Industrial manufacturers are exposed through increased costs for lubricants, petroleum-derived chemicals, packaging materials and inbound logistics. The latest increase comes at a time when many companies have limited flexibility to absorb additional expenses.
Construction sector faces margin pressure
Serbia’s construction industry entered 2026 with reduced capacity to absorb new cost increases. The real value of construction works declined 5.4% in 2025, while civil engineering activity fell approximately 11.5%. At the same time, building construction increased 6.2%. The government’s 2026 capital budget of RSD602 billion, including major projects linked to Expo 2027 and transport infrastructure, provides a significant pipeline of construction activity.
Increased public investment does not automatically protect contractor profitability when operating costs rise faster than contract prices. Long-term infrastructure contracts are particularly exposed. Fuel assumptions included in bids submitted during 2024 and early 2025 may now be significantly below current replacement costs. Contractors operating under fixed-price agreements may need to absorb higher expenses, rely on contractual indexation mechanisms or pursue variation procedures and claims.
Where contracts rely on broad consumer-price indicators rather than fuel-specific adjustments, compensation may not reflect the actual increase in petroleum-related costs.
Agriculture faces delayed cost transmission
Agricultural companies face a different form of exposure. Although imported food-product prices remained relatively contained, higher diesel costs can increase the domestic cost of cultivation, harvesting and agricultural transport. The impact may become visible later through higher production expenses and possible transmission into producer and retail food prices, particularly after the summer harvest period. Fuel costs therefore represent an important variable for agricultural profitability even when imported food inflation remains moderate.
NIS ownership uncertainty adds strategic fuel risk
Serbia’s petroleum exposure is also linked to the ownership and sanctions-related uncertainty surrounding Naftna Industrija Srbije (NIS), the operator of the Pančevo refinery and the country’s dominant fuel company. The 2026 state budget included a potential RSD164 billion allocation connected with possible government intervention in NIS. The provision highlights the strategic importance of domestic refining capacity at a time when imported refined petroleum products have recorded significant price growth.
Companies and lenders reassess fuel risks
For lenders and investors, the June data increase the importance of fuel-cost contingencies, monthly cost monitoring and project-level stress testing. A 10–15% fuel-price sensitivity scenario can materially affect EBITDA for logistics companies and alter cost-to-completion estimates for civil engineering projects.
The current petroleum-cost increase therefore represents more than an energy-market movement. It affects working capital requirements, contract management, procurement planning and profitability across Serbia’s transport, construction, agriculture and industrial sectors.
