Refining margins, or crack spreads, are the difference between the cost of crude oil and the selling price of refined petroleum products like diesel, petrol, and jet fuel. In simpler terms, it represents the gross profit a refiner earns per barrel of crude oil processed. A higher margin typically indicates better profitability for refiners. For Nayara Energy, which operates one of ... https://unlistedzone.com/shares/buy-sell-share-price-essar-oil-limited-unlisted-shares/