The EU's 17 June 2026 pipeline import ban removes only volumes under short-term contracts signed before 17 June 2025. The long-term TurkStream contracts that carry the bulk of Hungarian and Slovak supply run exempt until 30 September 2027, sliding to 1 November 2027 if EU storage-filling targets are missed 1. TurkStream is the Russian-Turkish pipeline routing Gazprom gas through Turkey and the Balkans into Central Europe, and after 17 June it becomes the sole remaining Russian pipeline import line for both states.
The legal posture reinforces the read established when the ban baseline was set nine days out . Hungary filed its annulment challenge at the Court of Justice of the EU in February, Slovakia signalled it would join, and neither has secured a stay as the ban binds. Nor has either invoked the emergency suspension clause, which only the European Commission can activate on a member-state emergency declaration; no such declaration exists. Hungary's TurkStream deliveries were up 17% in 2025 2, so the route Brussels has exempted is also the one Budapest is leaning on harder.
The distinction between contract classes is what spared the regional basis from a blow-out. The volumes that step down on the date are a thin sliver of Central European flow, while the dominant Gazprom long-term contract is shielded for fifteen months. The counter-case is genuine: a CJEU interim order or an Iranian shock could gap the basis violently before 17 June. Absent either, the market has discounted the 2027 exemption as settled law, and the ban reads as a rewrite of the rulebook rather than an interruption of the gas.
