If you wonder why the US imports foreign oil at all, see below. It is not as simple as only refining what we produce. There’s probably some oil industry people who could explain it better than me though.
Elizabeth V
The US imports foreign oil for two reasons. 1) we built our refineries to deal with heavy crude and we don’t really have that so we have to mix sweet and sour to make a mixture that we can refine and 2) we don’t have pipeline infrastructure to move oil across the country so we import
