Speaking to reporters after addressing the United Nations General Assembly on Tuesday, Macron said Iranian sales would bring down the price of oil, France 24 reported.
"It would be good for the price of oil for Iran to be able to sell it. It's good for peace and it's good for the shape of the international price of oil," Macron said.
France and other European powers are setting up a way to allow businesses to keep doing business in Iran in hopes of avoiding sanctions by the United States, which has withdrawn from the 2015 nuclear deal.
Addressing world leaders shortly after Donald Trump, the French president credited the accord with curbing the peaceful nuclear program of Iran.
"What will bring a real solution to the situation in Iran and what has already stabilized it? The law of the strongest? Pressure from only one side? No!" Macron said in his address.
"We know that Iran was on a nuclear military path but what stopped it? The 2015 Vienna accord,” he claimed in his address to the 73rd session of the United Nations General Assembly in New York.
Macron added, "We should not aggravate regional tensions but rather through dialogue and multilateralism pursue a broader agenda that allows us to address all the concerns caused by Iranian policies -- nuclear, ballistic, regional."