Moscow is also seeking to link the removal of restrictions to a ceasefire in the Black Sea, the outlet's sources said.
Ukrainian officials familiar with the talks do not know which specific sanctions the Kremlin wants lifted. A European diplomatic source said the demand could involve returning control of frozen Russian assets to Moscow. If Moscow obtains those funds, "the probability that they will be used for escalation is almost guaranteed," the source said.
"No one actually thinks they are sincerely striving to adhere to the ceasefire regime," a source told the outlet.
Ukrainian authorities insist the energy truce must be mutual and that Russia should receive no preferences in exchange for halting strikes on the power grid.
The reports of Moscow's demands emerged amid intensified Russian attacks on Ukrainian energy infrastructure ahead of winter. A Ukrainian Defense Ministry representative said Moscow is trying to inflict as much damage as possible to gain leverage ahead of possible negotiations.
US President Donald Trump said on September 14 that Russia and Ukraine had agreed to stop strikes on each other's energy infrastructure. Mutual strikes continued.
According to Axios, Trump's special envoys Steve Witkoff and Jared Kushner plan to present the Ukrainian delegation with "new ideas and proposals" to end the war at talks in the United States on October 9. Before the end of the month, they plan to visit Russia and discuss these ideas with the Russian leadership. What exactly these ideas entail was not specified.