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
What is 'EBITDA Margin'. EBITDA margin is a measurement of a company's operating profitability as a percentage of its total revenue. It is equal to earnings before interest, tax, depreciation and amortization (EBITDA) divided by total revenue.