Refiners in India, the world's third biggest oil importer and consumer, have been snapping up Russian oil through spot deals since Russia's invasion of Ukraine on Feb. 24.
The state-run refiner regularly buys Russian Urals for its 310,000 barrels per day (bpd) Kochi refinery in southern India.
With BPCL's purchase, India has so far booked at least 16 million barrels of Russian oil since Feb. 24, similar to imports in all of 2021, according to Reuters calculations.
The Urals discount to dated Brent has hit a record for the post-Soviet era as some buyers shunned Russian oil. Unlike several Western countries, India has not banned Russian oil imports.
India's foreign minister S. Jaishankar said on Wednesday the government was working to stabilise economic transactions with Russia, a day after India condemned killings of civilians in Ukraine and called for an independent probe.
Mr. Jaishankar told lawmakers in Parliament that Russia continued to be a critical economic partner and efforts were underway to "stabilise economic transactions between India and Russia."
India's finance minister Nirmala Sitharaman last week said India would buy Russian oil if available at a discount.
"India's overall interest is what is kept in mind ... I would put my country's national interest first, and I would keep my country's energy security first," she said.