Explanation:

Ravva oil and gas field is located in the shallow offshore area of the Krishna-Godavari basin on the eastern coast of India. The field is operated by Cairn India which holds a 22.5% stake in it. Its partners in the field include ONGC (40%), Videocon Petroleum (25%) and Ravva Oil (12.5%).

The Ravva field was initially estimated to produce 100 million barrels of crude oil. It has, however, produced more than 225 million barrels till 2011.

The output from the field accounts for 8% of total domestic oil production in India.