Title : "Types" Of Crude Oil And Crude Oil Benchmarks
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"Types" Of Crude Oil And Crude Oil Benchmarks
Disclaimer: some/much/all of this could be wrong. I've put this together over the years, from different sources. Information is not always confirmed and often not updated. It's for my own personal interest to help me sort this out. This should not be used by folks who are seriously invested in this issue.Saudi Arabia's Ghawar field:
- the largest oil field in the world, Saudi Arabia's Ghawar field
- light crude oils ranging from 33° API to 40° API (see above; most would consider Saudi oil to be medium/heavy; and sour
- 31.4°
- sulfur: 0.96%
36 to 44 degrees API. The quality of this oil is excellent, almost identical to WTI. The benchmark crude oil is West Texas Intermediate, which is 40 degrees API sweet crude. It is the benchmark because it requires the least amount of processing in a modern refinery to make the most valuable products, unleaded gasoline and diesel fuel.North Dakota Spearfish: 36°
- presentation, Corinthian, undated, perhaps early 2014
- sulfur content: 0.8% to 1%
- Isthmus: 21.8°.3.3% sulfur
- Maya: 33.4°; 1.35% sulfur
- Olmeca: 37.3°; 0.84% sulfur
Crude oil found in Iraq varies significantly in quality, with API gravities generally ranging from 22° (heavy) to 35° (medium - light).
Over 70% of national oil reserves are below 28° API and the International Energy Agency (IEA) predicted in its 2012 report on Iraq that future production is likely to include a larger share of heavier crudes. However some of the crudes produced at the Taq Taq field in the norther semi-autonomous Kurdistan region are as light as 48° API, dubbed by Reuters as "champagne crude." See Taq Taq here.California: heavy oil; pdf here -- old data, from 2004, but type of oil probably has not changed
- Kern County: heavy oil with 1.2% sulfur; accounts for 75% of California's on-shore production
- Los Angeles Basin: heavy oil; sulfur content 1.7% to 2.0%
- Off-shore: intermediate for the most part, 18° (heavy) to 36° (medium-light)
Seeks low-sulphur, light oil, September 1, 2015:Venezuela: heavy oil, similar to Canadian oil sands.
Net crude exporter Petroecuador issued a tender to import 30 million barrels of light sweet crude over the course of a year in an attempt to maximize diesel and gasoline production when its Esmeraldas refinery comes back online in the fourth quarter, market sources said Tuesday.
Petroecuador is seeking 30 million barrels of low sulfur crude oil with an API gravity of 28 degrees to be delivered in a one-year period, according to a tender issued late Monday.
The state-owned oil company is seeking the barrels "in order to optimize the Esmeraldas refinery operations, once the revamping has been complete," the tender said.
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