Indian state-owned refineries are reviewing contracts for Russian oil deliveries to ensure that suppliers do not include Lukoil and Rosneft, Reuters reports, citing sources familiar with the situation. This comes in response to new U.S. sanctions on Russian companies. The contracts are being examined by India’s largest refineries, including Indian Oil, Bharat Petroleum, and Hindustan Petroleum.

Sources note that Indian state refineries rarely buy Russian oil directly from Rosneft and Lukoil, usually purchasing through intermediaries.

Meanwhile, executives of Indian refineries told Bloomberg that they expect Russian oil supplies to drop almost to zero.