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.
Brent blend is generally priced at about a $4 per barrel premium compared to the OPEC Basket price and about a $1 to $2 per barrel lower than WTI. For example, on Friday, June 25, 2010, NYMEX West Texas Intermediate crude oil closed at $78.86 per barrel while Brent crude was $76.17 a barrel.ight Sweet Crude. West Texas Intermediate (WTI) is considered a light sweet crude oil of very high quality and is excellent for refining a larger portion of gasoline. Its API gravity is 39.6 degrees (making it a âlightâ crude oil), and it contains only about 0.24 percent sulfur (making it a âsweetâ crude oil).