Oil & Natural Gas Corporation Ltd (ONGC) has inked the Crude Oil Sales Agreement (COSA) with Mangalore Refinery and Petrochemicals Limited (MRPL) on 27 September 2023, which is the largest single-location PSU refinery in the country. The agreement has been signed by the two entities for the sale and purchase of crude oil. ED Marketing ONGC Shri Sanjay Kumar and Shri Chandermani GGM (Impex and Shipping) MRPL signed the agreement on behalf of the two entities. The Telegraph