The OPEC Reference Basket (ORB) is a weighted average of prices for crude oil blends produced by OPEC countries. It is used as an important benchmark for crude oil prices. The Reference Basket currently consists of a weighted average of the following blends of oil:
* Saharan Blend (from Algeria)
* Minas (from Indonesia)
* Iran Heavy (from Islamic Republic of Iran)
* Basra Light (from Iraq)
* Kuwait Export (from Kuwait)
* Es Sider (from Libya)
* Bonny Light (from Nigeria)
* Qatar Marine (from Qatar)
* Arab Light (from Saudi Arabia)
* Murban (from UAE)
* BCF 17 (from Venezuela)