Indian Oil Corporation Limited, is an Indian multinational oil and gas company under the ownership of the Government of India and administrative control of the Ministry of Petroleum and Natural Gas. It is a public sector undertaking which is registered in Mumbai and headquartered in New Delhi. It is the largest government-owned oil producer in the country both in terms of capacity and revenue. It has consolidated refining capacity of 80.55MMTPA. Indian Oil's business interests overlap the entire hydrocarbon value chain, including refining, pipeline, marketing of petroleum products, exploration and production of Petroleum, natural gas and petrochemicals. Indian Oil has ventured into renewable energy and globalisation of downstream operations. It has subsidiaries in Sri Lanka, Mauritius, and the Middle East. Indian Oil is ranked 94th on the Fortune Global 500 list of the world's biggest corporations as of 2022. As of 31 March 2021, Indian Oil has 31,648 employees, out of which 17,762 are executives and 13,876 non-executives, while 2,776 are women. Wikipedia