Jones and Cassidy went on to play mother and son on The Partridge Family, which debuted in the fall of 1970. Danny Bonaduce and Susan Dey were also key members of the cast.
Sour crude oil. Sour crude oil is crude oil containing a high amount of the impurity sulfur. It is common to find crude oil containing some impurities. When the total sulfur level in the oil is more than 0.5% the oil is called sour.
While both Brent and WTI are considered a light and sweet grade of crude oil, there are many factors that distinguish the two from one another. The API gravity for Brent is 38.06 while WTI has an API gravity of 39.6. WTI is considered the lighter, sweeter of the two due to its lower sulfuer content and API gravity. The biggest difference between the two is where they are harvested.