The Oil and Natural Gas sector is amongst the 8 core industries driving economic growth in India and plays a crucial role in country’s economic growth. The industry is broadly divided into following different segments which refers to different points in the process of exploring and extracting, collecting and processing and ultimately distributing the oil and natural gas for use.

Energy statistics for the year 2016, published by Ministry of Statistics & Programme Implementation, state that from year 2005 to 2015, gross availability, defined as sum of total production & imports, of crude oil has nearly doubled from 131.6 million tonnes to 226.89 million tonnes, during the same period, consumption of crude oil has increased steadily from 130.11 million metric tonnes to 223.24 million metric tonnes. For natural gas, gross availability has increased by about 34% to 49.13 billion cubic meter in 2015 from 36.39 billion cubic meter in 2005.