Out of curiosity, I looked this up with a Google search. I had heard about Libya’s sweet crude but not the others. Interesting:
Crude oil is classified as "sweet" if it contains very low levels of sulfur (typically below 0.5%). While several countries produce high-quality, sweet crude, the highest-ranking oils based on extreme purity and low sulfur include:
Kimray +4
Malaysia: Produces Tapis crude, which is frequently ranked as the cleanest crude in the world. It boasts remarkably low sulfur levels (as low as 0.03%) and a high API gravity, making it incredibly pure.
Wikipedia +2
Algeria: Produces Saharan Blend, which is world-renowned for having almost zero sulfur content.
Quora +2
Nigeria: Known for Bonny Light, a premium crude prized by refineries globally for its exceptionally low sulfur and high yields of high-value petroleum products.
Quora +1
Libya: The country's crudes, such as Es Sider and Sharara, are exceptionally light and sweet, making them highly sought after in European refineries.
Quora +1
Key Benchmarks:
If you look at the largest volume and most widely traded sweet crudes, the United States (producing West Texas Intermediate) and the North Sea (producing Brent Crude) are the most famous global benchmarks for light, sweet crude