Isthmus-34 Light Explained

Isthmus-34 Light is a sour crude oil produced in Mexico mainly in the Campeche zone, in the Gulf of Mexico along with the extraction centers in Chiapas, Tabasco, and Veracruz.^[1] The name derives from the nearby Isthmus of Tehuantepec. Before 2017, the oil was a component of the OPEC Reference Basket (despite Mexico's not being a part of OPEC).^[2] It has the following characteristics:

Properties	Isthmus
Density (20 °C)	0.8535 g/cm^3
	33.74 °API
60 °F (15.6 °C)	65.6 Saybolt Universal Seconds (SUS)
70 °F (21.1 °C)	57.8 SUS
77 °F (25.0 °C)	54.5 SUS
Sulphur total, weight %	1.45
Oils, weight %	89.2
Alkanes, weight %	8.1

See also

• Cantarell Field

Notes and References

1. Web site: The Deer Park Refinery: Pemex-Shell Joint Venture. February 2002. Bureau of Economic Geology, Jackson School of Geosciences, University of Texas at Austin. 30 March 2011. https://web.archive.org/web/20120314031000/http://www.beg.utexas.edu/energyecon/new-era/case_studies/Deer_Park_Refinery.pdf. 14 March 2012. dead.
2. Web site: WINTERSHALL: Types of oil. 30 March 2011.