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
Headquartered in Sugar Land, Texas, CVR Refining is an independent downstream energy limited partnership formed by CVR Energy, Inc., to own, operate and grow our refining and related logistics businesses. CVR Refining, LP is traded on the New York Stock Exchange under the ticker symbol âCVRR.â.