In which state is the Digboi Oil Refinery located?

The correct answer is Assam . The Digboi Oil Refinery is located in Assam, a northeast state of India. Digboi is the first oil refinery in India and Asia . It was obtained in the year 1901 . Important Points List of oil refineries in India: OIL REFINERY LOCATION Jamnagar Refinery (Reliance Industries Limited) Jamnagar, Gujarat. Nayara Energy Refinery Vadinar, Gujarat. Guru Gobind Singh Refinery Bathinda, Panjab. Manali Refinery (Chennai Petroleum Corporation Limited) Chennai, Tamil Nadu. Numaligarh Refinery Numaligarh, Assam. Barmer Refinery Barmer, Rajasthan. Mathura Refinery (Indian Oil Corporation Limited) Mathura, Uttar Pradesh. Barauni Refinery (Indian Oil Corporation Limited) Barauni, Bihar. The Jamnagar Refinery (RIL) is the biggest oil refinery in India. It is currently the largest refinery in the world.