More infomation and similar graphics can be found at the official EIA website.
Crude Oil – the monthly average of the composite refiner acquisition cost, which is the average price of crude oil purchased by refiners.
Refining Costs and Profits – the difference between the monthly average of the spot price of gasoline or diesel fuel (used as a proxy for the value of gasoline or diesel fuel as it exits the refinery) and the average price of crude oil purchased by refiners (the crude oil component).
Distribution, Marketing Costs and Profits – the difference between the average retail price of gasoline or diesel fuel as computed from EIA’s weekly survey and the sum of the other 3 components.
Taxes – a monthly national average of federal and state taxes applied to gasoline or diesel fuel.