Average U.S. refiner acquisition cost of domestic crude oil

* According to the source, the refiner acquisition cost of crude oil is the average price paid by refiners for crude oil booked into their refineries in accordance with accounting procedures generally accepted and consistently and historically applied by the refiners concerned. Domestic crude oil is that oil produced in the United States or from the outer continental shelf. Crude oil costs and volumes exclude unfinished oils but include the Strategic Petroleum Reserve (SPR).
** Nominal U.S. dollars reflect the buying power in the year in which the transaction occurred; not adjusted to remove the effect of changes in the purchasing power of the dollar.

Annual averages are the averages of the monthly prices, weighted by volume. Geographic coverage is the 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, and all U.S. Territories and Possessions.
The abbreviation EIA stands for U.S. Energy Information Administration.