The shift to rouble payments follows Russian President Vladimir Putin's push for Moscow and its trading partners to find alternatives to the Western financial system to facilitate trade despite U.S. and European sanctions.A term deal with Rosneft also helps privately run Reliance to secure oil at discounted rates at a time when the OPEC+ group of oil producers is expected to extend voluntary supply cuts beyond June.
The OPEC+ group comprising the Organisation of the Petroleum Exporting Countries (OPEC) and allies including Russia is due to discuss the output cuts in an online meeting on June 2.
India, the world's third-biggest oil importer and consumer, has become the biggest buyer of seaborne Russian crude since the West halted purchases and imposed sanctions against Moscow in the aftermath of Russia's 2022 invasion of Ukraine. India has also paid for Russian crude in rupees, dirhams and Chinese yuan.State-owned Indian refiners, meanwhile, have been tapping spot markets for Russian oil because they were unable to finalise term supplies for this year, has reported previously.
"India is a strategic partner for Rosneft oil company," the Russian company said in an response to questions from, adding that it does not comment on confidential agreements with partners.
"Cooperation with Indian companies includes projects in the field of production, oil refining and trading of oil and petroleum products."Rosneft also said that commercial approaches to determining the value of sold crude are the same for all companies, regardless of whether they are private or state-controlled.
Reliance did not respond to a request for comment.
Under the terms of the deal, which took effect at the beginning of the Indian financial year from April 1, Reliance will buy two cargoes of about one million barrels of Urals crude with an option to buy four more each month at a discount of $3 a barrel to the Middle East Dubai benchmark, the sources said.