Energy use in the U.S. can be split into two large (very, very large) pies. One is electricity for use in homes, buildings, and industry, and the other is transportation, which is powered primarily by liquid fuels (gasoline and diesel) from oil. There are some exceptions, and small overlapping fuel uses — direct industrial use of liquid fuel (a fairly significant quantity), some liquids burned to make electricity (this used to be a significant amount, but is now only a very small amount), and now a very small amount of electricity used to power electric vehicles (EVs).