Indian Oil Corporation Limited is an Indian oil and gas company under the ownership of the Ministry of Petroleum and Natural Gas, Government of India. Headquartered in New Delhi, it is a public sector undertaking whose operations are overseen by the Ministry of Petroleum and Natural Gas. Indian Oil is ranked 94th on the Fortune Global 500 list of the world's biggest corporations as of 2022. 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 which it intends to increase to 107MMTPA by 2024-25. As of 31 March 2021, Indian Oil's employee strength is 31,648, out of which 17,762 are executives and 13,876 non-executives, while 2,776 are women, comprising 8.77% of the total workforce.

The Ministry of Petroleum and Natural Gas (MOP&NG) is a ministry of the government of India responsible for the exploration, production, refining, distribution, marketing, import, export, and conservation of petroleum, natural gas, petroleum products, and liquefied natural gas in the country. The ministry is headed by the Cabinet Minister Hardeep Singh Puri. M. M. Kutty is the Secretary of the Ministry. Dharmedndra Pradhan serving as the minister from 26 May 2014 to 7 July 2021 is the longest serving minister till date.