The Oil and Natural Gas Corporation Limited (ONGC) is an Indian central public sector undertaking under the ownership of Ministry of Petroleum and Natural Gas, Government of India. The company is headquartered in Delhi. ONGC was founded on 14 August 1956 by the Government of India. It is the largest government-owned-oil and gas explorer and producer in the country and produces around 70 percent of India's domestic production of crude oil and around 84 percent of natural gas. ONGC is vertically integrated across the entire oil and gas industry. In November 2010, the Government of India conferred the Maharatna status to ONGC.

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.