• EU to propose measures to ban Russian gas by end-2027
• EU to seek details of companies' Russian deals, document shows
• Curbs on LNG terminals' services to Russia to start Jan 2026

BRUSSELS, June 13 (Reuters) - The European Union will demand companies disclose details of their Russian gas deals to the EU, under upcoming European Commission proposals to ban Russian gas imports by the end of 2027, an internal Commission document seen by Reuters showed.

The Commission is preparing to propose legal measures to completely halt the EU's Russian gas imports by the end of 2027, and ban new Russian gas deals by the end of this year. The proposals are due to be published on June 17.

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An internal European Commission analysis of its upcoming proposals, seen by Reuters, said to enforce the ban, the Commission will require information including the duration, annual contracted volumes, destination clause and date of conclusion of their Russian gas contracts.

"The implementation of the measures - as designed in the proposal - requires comprehensive and systematic information about the existing contracts for Russian gas, including specific contractual arrangements," the document said.

A Commission spokesperson declined to comment on the upcoming proposals, which could still change before they are published.

Gas importers will also be required to disclose the origin of their imports, to ensure it is not Russian, the document said. The disclosures aim to ensure the EU and countries' customs and energy authorities can track that the ban is enforced.

"Except for cases where gas can clearly be considered as of Russian origin, the proposal requires importers to present documentation to the customs authorities about the origin of the imported gas," the document said.

The Commission's assessment said the upcoming proposals will ban EU LNG terminals from providing services to Russian customers from January 1, 2026, with a longer deadline of June 17, 2026 for existing services contracts under short-term LNG supply deals.

The deadline to stop providing these services under long-term contracts with Russia will be December 31, 2027, it said.

Simone Tagliapietra, senior fellow at Brussels-based think tank Bruegel, said that the EU may struggle to access information on Russian gas deals, and companies had resisted governments' past attempts to gather this information.

"Companies are likely to resist again, unless strong confidentiality protections are guaranteed," Tagliapietra said.

"A viable route for the Commission to do so might be to mandate non-public disclosure to national regulators or to the Commission itself under strict confidentiality, possibly aggregated or anonymised for public reporting," he added.

The document said the Commission will propose banning Russian gas and LNG imports through an EU trade measure, although it did not specify the specific mechanism.

https://www.reuters.com/business/energy/eu-force-companies-share-details-russian-gas-deals-document-shows-2025-06-13/