Oil & Natural Gas Corporation Ltd.

ONGC has received just one bid from US oilfield service company Schlumberger for its ambit's pilot to raise output from ageing oilfields through the infusion of technology. The company is planning to hire international oil service companies for the first time to raise output from its mature oilfields. At the close of bids, only Schlumberger made a financial bid for Geleki field.

ONGC is India’s largest government-run corporation and produces about 70% of India’s crude oil and natural gas. The corporation is the biggest public sector commercial organization in India.