Adding a bit to M.Ted-
Brent blend (low sulfur) generally commands a $4 premium over Saudi (higher sulfur) crudes (In these volatile times that price figure could be off).
This may be one of the reasons that the Saudis and their partners are building super refineries and exporting more and more refined petroleum. By refining before shipping, they may be able to command a higher overall profit.

Don't know the current market demand for sulfur. Canada, the Middle East and Russia are the largest suppliers.