Correct Option: E

The number of PSEs having Navaratna status is 16. Oil India Limited (OIL) is one of them. s an Indian public sector oil and gas company in India under the administrative control of the Ministry of Petroleum and Natural Gas of the Government of India. OIL is engaged in the business of exploration, development and production of crude oil and natural gas, transportation of crude oil and production of liquid petroleum gas. National Aluminium Company Limited is also a navaratna company.