Friendship Restored (?): Russian Oil Flows Resume
Recent developments around the Druzhba (Friendship) oil pipeline have highlighted just how vulnerable and politically entangled Central Europe’s energy supply remains. Although oil flows were restored by late April 2026, the story is far from over: the pipeline today is not just infrastructure, but a geopolitical instrument.
The roots of the crisis go back to January 2026, when oil shipments on the southern branch of the pipeline – supplying Hungary and Slovakia – were halted due to damage reportedly caused by a Russian drone strike, according to Ukrainian sources. The disruption paralysed deliveries for months, with the parties trading accusations: Kyiv cited technical issues and security risks, while Budapest and Bratislava pointed to political delays.
The situation escalated to the point where Hungary blocked an EU financial support package for Ukraine until oil flows were restored.
A turning point came on April 22–23, 2026, when oil flows resumed following repairs. After the restart, Hungary lifted its veto, allowing the European Union to approve a roughly €90 billion financial package for Ukraine, alongside new sanctions against Russia.
The pipeline thus became, quite literally, a “key” to a much broader political deal. From a regional perspective, the immediate effect of the restart was relief. Hungary and Slovakia remain heavily dependent on Russian crude, most of which arrives via this route. The resumption of flows stabilised supply in the short term and reduced immediate energy security risks.
At the same time, the crisis has delivered more important long-term lessons. Most notably, it has underscored how concentrated and geopolitically exposed the region’s energy system still is. Hungary and Slovakia are now among the last EU member states to continue importing significant volumes of Russian oil via pipeline, making them particularly vulnerable to disruptions of this kind.
Another key consequence is the acceleration of diversification efforts. The months-long disruption forced regional players to look for alternative routes and sources. Slovakia, for instance, has already taken concrete steps to expand the capacity of the Adria pipeline and adapt its refineries to process non-Russian crude. This aligns with the European Union’s broader strategy to gradually reduce dependence on Russian energy.
Meanwhile, the future of the Druzhba pipeline remains uncertain. Although flows have resumed, Ukrainian authorities have indicated they cannot guarantee the system’s security, particularly given ongoing military risks. This means the current stability is fragile, and further disruptions—whether technical or political—cannot be ruled out.
Ultimately, the crisis surrounding the Druzhba pipeline goes beyond a one-off infrastructure issue. It illustrates that Central Europe’s energy system is still in transition: in the short term, it remains heavily reliant on traditional, politically sensitive sources, while in the longer term it is attempting to shift toward a more diversified and less exposed model.
