EU aggregate gas injection reached 1.9 bcm across the opening fortnight of April 2026, matching the prior-year pace rather than accelerating, at a cost of at least $300 million above the 2025 equivalent window1. The reference baseline is the 29.55% bloc-wide storage reading on 13 April published via GIE AGSI+, the Aggregated Gas Storage Inventory platform run by Gas Infrastructure Europe.
The aggregate line on AGSI+ is running on peripheral injection while Germany's anchor estate withdraws. That is a composition effect worth naming: the headline pace looks like continuity with last year, but the countries doing the injecting are not the same. When the largest storage estate in the bloc is net-withdrawing in April, other member states have to compensate or the aggregate slips. The match therefore means peripheral operators are already running hotter than their 2025 equivalents to keep the top-line steady.
The cost differential confirms the price environment has structurally shifted. A $300m premium on 1.9 bcm implies per-therm injection economics that no commercial operator would voluntarily run without downstream offtake certainty. It is consistent with VNG AG's public position that injection is uneconomical at prevailing spreads and with the 21 Mmcm booking rate at Reden. The 29.55% starting baseline carries forward every day the anchor does not flip.
The Oxford Institute for Energy Studies has quantified the forward requirement at 6 bcm above last summer's injection, a step-up in the May-June injection rate that the current pace does not close. The ENTSOG regasification envelope, roughly 145 bcm per winter season, is the hard physical limit on any supplementary route to cover a shortfall if the German anchor stays in withdrawal. A holding line works only when the target has not moved, and the target has moved.
