Brent crude tumbled over $20 from Monday’s intraday high, falling below $100, while U.S. crude dropped more than 10% to $85.17 a barrel. Prices surged earlier due to supply concerns from the U.S.-Israeli-Iran conflict but later eased after talks between Trump and Putin. Falling oil weighs on upstream firms like ONGC, Oil India, and could pressure India’s trade balance and rupee.