In 2008, oil prices rose briefly, to as high as $145/barrel,[REF] and U.S. gasoline prices jumped from $1.37 to $2.37/gallon in 2005,[REF] leading to a search for alternate sources, and by 2012, less than half of US oil consumption was imported.
In the twentieth century, oil production became of more value, as the US industrialized and developed commercial transportation, such as railroads and motor vehicles.