The spat erupted when Mr Orban lashed out at Poland over the weekend.
“The Poles are pursuing the most sanctimonious and the most hypocritical policy in the whole of Europe,” he said.
They are lecturing us morally, criticizing us for our economic relations with Russia, and at the same time they are doing business with the Russians and buying oil indirectly, and running the Polish economy with it.”
It triggered a denial and angry response from a Polish deputy foreign minister, Wladyslaw Teofil Bartoszewski, who said Sunday: “We do not do business with Russia, unlike Prime Minister Orban, who is on the margins of international society — both in the European Union and Nato.”
Poland was once dependent on Russian energy sources but has been working for years to wean itself off Russian oil and gas.
After Russia’s full-scale invasion of Ukraine, Poland decided to end its Russian oil imports.
Magda Jakubowska, vice president of Visegrad Insight, a policy journal focused on Central Europe, said Poland might still have some Russian oil in reserves from past deliveries, but that it no longer imports oil from Russia.
The Druzhba pipeline, which brought oil from Russia to Poland, “is no longer working”, she said.
About 50% of Poland’s imports now come from Saudi Arabia and some from Norway, she added.
She said it was possible some of the oil imports arriving in Poland could be traced indirectly to Russia, but that the amounts would be insignificant.
A year ago Mr Orban could have made his claim, but not now, she said.
“Maybe he hasn’t been updated,” Ms Jakubowska said.
Bartoszewski added that Mr. Orban should join a union with Putin and even suggested he should leave Western organizations.
His comments were reported by the Polish state news agency PAP.
Hungary has found itself isolated in the EU due to its rogue approach to Russia, and friendliness to China as well.
Top EU officials have been boycotting informal meetings hosted by Hungary, which now holds the EU’s rotating presidency.
“If you don’t want to be a member of a club, you can always leave,” Mr Bartoszewski said.
“I don’t understand why Hungary wants to remain a member of organizations that it doesn’t like so much and which supposedly treat it so badly.”