U.S. President Donald Trump's demand on India to halt Russian oil imports could threaten billions in Russian revenues, prompt Moscow to retaliate by stopping a major U.S.-led oil pipeline and potentially lead to a new global supply crisis. India, the world's third largest oil importer, has become the biggest buyer of Russian oil since 2022, purchasing up to 2 million barrels per day of oil accounting for 2% of global supply. Other top buyers are China and Turkey. The Indian route is so important for the Kremlin that if disrupted it could prompt it to retaliate by closing the CPC pipeline from Kazakhstan, where U.S. oil majors Chevron and Exxon hold big stakes, analysts at JP Morgan said this week.