"The situation in the energy field is worsening because of crude measures, which are not linked to the market, in particular the administrative pressure on our company Gazprom in several European countries", he said on television, during a a meeting devoted to the agricultural sector.
"We are already hearing statements from officials about the nationalization of some of our assets. We can go far like that. Let no one forget that this is a double-edged sword," added Mr Putin.
This decision came after the Russian group announced Friday its "withdrawal" from this subsidiary, without immediately indicating a buyer, creating a blur on the future of the company.
Gazprom's subsidiaries are the operators of major gas and fuel storage infrastructures in Germany.
Gazprom Germania in turn has several subsidiaries in the United Kingdom, Switzerland and the Czech Republic.
Russia and European countries are closely linked by their energy interdependence: Moscow needs its gas manna, when the EU is very dependent on Russian hydrocarbons.
This relationship has been under increasing pressure since the Russian offensive in Ukraine and the sanctions that hit Russia's economy.
The EU says it is seeking to reduce its dependence on Moscow, but in the meantime is reluctant to hit Russia's energy sector with sanctions.
Moscow has for its part said to impose on European customers to pay their gas bills in rubles, even if in practice the billing is always in euros or dollars.
The Kremlin has also repeatedly stressed that Russia is a reliable exporter of hydrocarbons, and that supplies have not been affected either by the conflict in Ukraine or by the sanctions.
© 2022 AFP