Gazprom, Europe's largest gas supplier, said in December it had filed proposals with the Commission, seeking to resolve a five-year EU case over the Russian gas giant's alleged monopoly practices.

"We still have some exchanges with Gazprom before we are ready to market test the commitments but I do hope we will be able to do that soon and we're exchanging that with Gazprom more or less as we speak," Margrethe Vestager told a news conference.

(Reporting by Padraic Halpin; Editing by Mark Potter)