It said the company reserved the right to take any action, including terminating the supply contract with Moldova.
In a statement on Facebook, Moldova’s prime minister Dorin Recean accused Russia of using energy as a political weapon and said that Moldova would now consider its legal options including international arbitration.
The supply suspension is a precursor to a total shutdown of Russian gas exports via Ukraine and to Europe, where it flows further to Slovakia, Austria, Hungary and Italy, once a current transit deal with Ukraine expires on December 31.
Moldova will be hit the hardest by the shutdown.
Russia supplies Moldova with about 2 billion cubic meters of gas per year through Ukraine. This is piped to the breakaway region of Transnistria which uses the gas at a plant to generate cheap power, which it sells on to the rest of Moldova.
Russia, which is critical of Moldova’s West-leaning central government, has said that Moldova should pay a debt on past supplies, which according to Russian calculations stands at $709 million. Moldova has said its debt is $8.6 million.
Transnistria and the government in Chisinau agreed in 2022 that all Russian gas received by Moldova would flow to the breakaway region, which traditionally does not pay for fuel.
Without gas supplies, the power-generating plant could stop working and Moldova and Transnistria would face hours-long blackouts similar to those that Ukraine has learned to live with due to Russia's attacks on its energy infrastructure in their war.
Moldova’s population of 2.5 million has been preparing for long power cuts since Ukraine’s government said it will not extend its transit contract with Gazprom.
Moldova and
Transnistria have both declared states of emergency over the threat of disrupted gas supplies.
Moldova said on Friday it will curb power exports and introduce measures to reduce consumption by at least a third from January 1.
Moldova’s president Maia Sandu has accused Gazprom of provoking an energy crisis, saying it was refusing to supply gas through an
alternative route.