G7 imposed sanctions on Russia's oil to deprive it of sources of financing for the war in Ukraine. Russia was able to circumvent these sanctions through the so-called shadow fleet, and now America has begun targeting this fleet.
Indian oil refineries, Moscow's second largest customers after China, will not accept tankers owned by the Russian state-run Sovcomflot due to the risks of sanctions. The combined moves have the potential to gradually reduce Russian oil revenues, which is a major political goal for the United States and its allies.