Dr. Ranjit Rath is currently leading Oil India Limited (OIL), India’s oldest National E&P Company as the Chairman & Managing Director and Numaligarh Refinery Limited (NRL) as the Chairman. Under his leadership, OIL has achieved annual revenue of ~ 4 billion USD and Market Cap of ~ 10 billion USD. He is spearheading the next phase of transformative growth at OIL and its subsidiary NRL, with planned investments of around USD 10 Bn in upstream and USD 5 Bn in midstream & downstream hydrocarbon value chain in next five years. Under his leadership, OIL achieved landmark milestones including highest ever ( annual drilling meterage, gas production, daily oil production, cumulative oil & gas production, workover, crude transport, quarterly Standalone PAT in Q1 FY 26-27, horizontal displacement of 3,116 metres in an onshore well in Assam) , reinforced offshore exploration capability, signed TSA with TotalEnergies, established presence of hydrocarbon in North Bank of Assam Shelf and two (2) out of three (3) exploratory well drilled in Andaman Shallow Water Basin, thus mapping new petroleum systems in North Bank of Assam Shelf and Andaman Shallow Water Basin, securing array of discoveries leading to monetisation through near field exploration campaigns. Under his leadership OIL has diversified in the critical minerals sector by leveraging current capabilities and knowledge. OIL has been awarded two critical mineral blocks and actively pursuing critical mineral blocks overseas. He is also Spearheading NRL's growth with refining capacity enhancement from 3 MMT of crude oil annually to 9 MMT and a cross country ~1640 km crude oil pipeline with a capex of ~ USD 4 Bn and initiation of a Poly-propylene Plant (Pet-chem Project) with 360 KTPA capacity with capex of ~ USD 1 Bn. As Chairman, Spearheaded construction and commissioning of the 2G Bio Ethanol plant, first of its kind in the world at Numaligarh. Initiated Commissioning of enhanced capacity of NRL effective 31st Dec 2025. Dr. Rath, a career technocrat with strong commercial and administrative acumen, impeccable experience and expertise of more than 30 years has a rich portfolio of diverse roles spanning from exploration geosciences, upstream asset management, strategy formulation and business development to application of geosciences & exploration geology across minerals in several important projects including creation of Strategic Petroleum Reserves. As the former C&MD, MECL & DG-GSI he was previously responsible for Natural resource mapping including mineral exploration in the country.