Gazprom is expected to restart gas flows through the Nord Stream 1 pipeline Thursday, after the completion of a 10-day maintenance that has put EU leaders on edge.
Two sources familiar with the plans confirmed the information to Reuters.
Gas flows are set to resume on Thursday but will not match the usual capacity of 160 million cubic metres (mcm) per day, the sources told the news agency.
Russia is propping up its currency, the rouble, and its public coffers thanks to soaring gas prices.
The news from Reuters offers some relief to European governments who have been preparing in case the Kremlin uses the maintenance to indefinitely cut off gas supplies in retaliation for the Western sanctions imposed since the start of the Ukraine war.
The fears were further fuelled by a recent dispute around a gas turbine that Canada decided to ship back to Germany under a "time-limited and revocable" permit.
Gazprom claimed the turbine was essential for the functioning of Nord Stream 1, but Ukraine blasted Canada's decision as a show of weakness. By contrast, the EU and the US welcomed the move.
The turbine's whereabouts are unclear.
Kommersant, a Russian newspaper, reported Canada sent the equipment by plane on 17 July.
"It is difficult to say whether Nord Stream 1 will run after ten days of maintenance. The past has often shown that technical reasons are often excuses for political decisions. Of course, this could happen again," Robert Habeck, Germany's vice-chancellor, said earlier this month.
"Nobody can see inside Putin's head, so we do not know what will happen."
Gazprom, a state-controlled multinational that enjoys exclusive rights on the exports of Russia gas pipeline, has already reduced flows to several EU countries, including
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