As an oil$$ refiner, you are able to produce worth of unleaded gasoline from one barrel of Alaska North Slope$($ANS$)$ crude oil. Because of its lower sulfur$$ content, you can produce worth of unleaded gasoline from one barrel of West Texas Intermediate$($WTI$)$ crude.

Another oil refiner is offering to trade you of Alaska North Slope$($ANS$)$ crude oil for of West Texas Intermediate$($WTI$)$ crude oil. Assuming you currently have of WTI$$ crude, the added benefit$($cost$)$ to you if you take the trade is closest$$ to: