The estimated reserves of crude oil in India as on 31 March, 2016 stood at 621.10 million tonnes (MT) against 635.60 million tonnes on 31 March, 2015. Geographical distribution of crude oil indicates that the maximum reserves are in the Western Offshore (39.79%) followed by Assam (25.89%).

As on Crude Oil Reserves (MT)
31 March, 2015 635.60
31 March, 2016 621.10