ONGC and Oil India shares fell up to 4% as Brent crude dropped below $100 following a US-Iran ceasefire and easing tensions in the Strait of Hormuz.ONGC and Oil India shares fell up to 4% as Brent crude dropped below $100 following a US-Iran ceasefire and easing tensions in the Strait of Hormuz. Latest News [ SOBAN NEWS: International and National ]