Crude oil purchases by Indian Oil Corp. may shift as the new US sanctions on Russia affect supplies from Moscow, pushing the South Asian country’s biggest refiner to seek alternatives.

Middlemen supplying Russian oil are not offering cargoes due to new U.S. sanctions targeting Russian producers, tankers and insurers, according to the finance chief at Indian refiner Bharat Petroleum.

India's state-run refiner Bharat Petroleum Corp sees its Russian oil processing down to 20% in March from 31% this month as it awaits offers from traders, its head of finance Vetsa Ramakrishna Gupta told an analyst call on Thursday.