Observe the statements regarding mineral oil production. (a) Nunmati oil refinery established with the help of Rumania. (b) Nunmati oil refinery is located in Assam. (c) The raw mineral oil is supplied to Koyali oil refinery from Ankleshwar.

The correct answer is Statements (a), (b), (c) are correct . Key Points Noonmati Oil Refinery It is located in Guwahati, Assam in North East India. Hence statement (b) is correct. It is the first Oil refinery in India commissioned by the Indian Oil Company on 1 Jan 1962. It is also known as Guwahati Refinery. It is built with the help of Rumania. Hence statement (a) is correct. Koyali Oil Refinery It is located in the Vadodara district of Gujarat in Western India. It is also known as Gujarat Oil Refinery. It is 3rd largest refinery owned by Indian Oil Corporation. The raw mineral oil is supplied to the Koyali oil refinery from Ankleshwar. Hence statement (c) is correct.