Discounts on Russian oil being offered to Indian refiners have widened over the past 10 days, raising the question of whether processors will be encouraged to snap up cargoes despite a trade agreement with the US that hinges on lower purchases. Russia’s flagship Urals grade is being offered at more than $10 a barrel below Brent, inclusive of shipping and other costs, traders involved in the purchases said, asking not to be named as the information isn’t public.