Serbia’s oil supply chain remains heavily dependent on a single transport corridor, exposing the country to logistical and geopolitical risks that are increasingly difficult to ignore in a more fragmented European energy landscape.
Nearly all crude oil imported into Serbia — and processed at the country’s sole refinery in Pančevo — arrives via the Adriatic pipeline system. Tankers deliver crude to the Croatian port of Omišalj, from where it is transported inland through the JANAF pipeline to Serbia. In practice, this route functions as the country’s primary, and effectively only, large-scale supply channel.
Such concentration has long been considered manageable. However, recent disruptions linked to sanctions and payment constraints affecting Serbia’s oil sector have highlighted the fragility of the arrangement. The issue is not access to global oil markets, but the absence of alternative infrastructure through which that oil can be delivered.
At first glance, Serbia’s sourcing strategy appears diversified. Crude imports have been drawn from a range of suppliers, including producers in the Middle East, Central Asia and the North Sea. Procurement has become increasingly flexible, with volumes shifting in response to pricing and availability.
Yet this diversification applies only at the level of supply. Regardless of origin, most crude converges on the same transport route. The result is a system in which upstream diversity is offset by downstream concentration, leaving the overall supply chain exposed to disruption at a single point.
Efforts to address this vulnerability have focused on developing a connection to the Druzhba pipeline network via Hungary. The proposed link, with a planned capacity of several million tonnes per year, is intended to provide Serbia with an additional import corridor and reduce reliance on the Adriatic route.
While such a project would improve logistical flexibility, it introduces a different set of constraints. Druzhba remains closely tied to Russian export infrastructure and is subject to political sensitivities within the European Union, where energy policy has increasingly emphasised diversification away from Russian supply. The pipeline also runs through regions affected by geopolitical tensions, adding a further layer of uncertainty.
In effect, Serbia faces a trade-off between logistical diversification and geopolitical exposure. Expanding route options may reduce dependence on a single corridor, but does not eliminate broader systemic risks.
The structure of the domestic refining sector compounds the issue. The Pančevo refinery accounts for the majority of Serbia’s fuel production, supplying most of the country’s gasoline and diesel demand. This concentration creates a single point of failure within the system: any sustained interruption in crude deliveries would quickly translate into pressure on fuel availability.
Strategic reserves provide a degree of buffering capacity, but they are designed to manage short-term disruptions rather than prolonged supply interruptions. The resilience of the system therefore depends primarily on the continuity of inflows through existing infrastructure.
The broader implication is that energy security in Serbia is increasingly defined by infrastructure rather than resource access. The country is not constrained by the availability of crude oil on global markets, but by the limited number of pathways through which that oil can be transported domestically.
This model reflects historical patterns of infrastructure development, shaped by regional networks and long-standing supply relationships. However, as energy markets become more volatile and politically sensitive, the limitations of a single-route system are becoming more apparent.
Plans to diversify supply routes suggest an awareness of these constraints, but implementation will take time. Until additional infrastructure is operational, Serbia’s oil supply will continue to rely on a narrow logistical base.
The system remains functional, but its resilience is limited. In a market where disruption risk has become a central concern, the absence of redundancy is increasingly visible as a structural weakness rather than a manageable constraint.
