Roughly what percentage of India's total crude oil production is contributed by Assam?

The correct answer is 25%. Key Points Assam contributes approximately 25% of India's total onshore crude oil production. The state has extensive sedimentary basins and is one of the oldest oil-producing regions in the world. Major public sector undertakings like Oil India Limited (OIL) and ONGC operate large-scale extraction facilities in the state. The petroleum sector provides the state government with significant royalty and VAT revenue, making it a pillar of the fiscal economy. Additional Information Oil India Limited (OIL): Headquartered in Duliajan , Assam, it is a Navratna company and the second-largest government-owned hydrocarbon explorer in India. Brahmaputra Valley Fertilizer Corporation Limited (BVFCL): Located in Namrup, it uses natural gas as a feedstock to produce urea. Offshore Production: While Assam is a leader in onshore production, the majority of India's total oil comes from offshore fields like Mumbai High. Gas Cracker Project: The Brahmaputra Cracker and Polymer Limited (BCPL) in Dibrugarh is a major downstream petrochemical project using gas from the state's fields.