The beginning of the amazing events at Krakatoa in 1883 date to May 20 when there were initial rumblings and venting from the volcano, which had been dormant for about 200 years.
A refinery margin is the revenue associated with refining petroleum, expressed as a value per volume (e.g. $/L), net of the cost of the crude oil input. The simplest refining
If cracks are good, refining margins are good but during the last few months, cracks have not been very good; as a result, our margins have depleted, said B. Ashok, chairman and managing director of Indian Oil in an interaction with the media on 29 November.