[usconservative]

Some grades can be worth that or less. Tough to judge without a description. Some North Dakota crude is selling currently for less than $20.

For those of us who know nothing about crude oil grades and what they mean, would that oil be selling for less than $20 because it's difficult/more costly to refine into gasoline and other petroleum based products?

[thackney]

Different grades would include sour, containing more sulfur, which cost more processing to remove.

Also made up of too many components that are too light or too heavy to separate into the most valuable fuels of gasoline, diesel or kerosene.

Those that are too heavy can have extra processing to crack those long change molecules into lighter ones. But it cost more and 100% of that does not become a transportation fuel.