The US is also exporting both crude and refined products.
We have always done this and always will. We have covered this before,
there are REASONS why we export some crudes and import others. But those who do not understand the intricacies of the petroleum market and the refining capabilities in the U.S. just parrot the narrative that it is 'Big Oil' Greed.
First of all....it is a Free Market (that is a good thing) and no entity selling crude is committed or required in any way to keep all production domestic.
With respect to economics....sellers will naturally want to make the most profit, so sell to markets paying the most. Some have prior commitments to fulfill as well.
From a strictly chemical standpoint (and again we have covered this) there are two basic metrics to remember concerning crude oil. There is light/sweet crude oil (easiest to refine for certain types of fuels) there is heavy/sour crude.
For many decades...the U.S. has imported heavy crude to refine. It is much cheaper (even after shipping) for a variety of reasons. So....most of our refineries (though this is slowly changing) were/are set up to process heavy crude. The process is different for each type.
Domestic Crude is mostly Light/Sweet crude, so we export some of that, refine some of it (what we can).
But in no way are we set up to just "keep it all at home and everything will be OK".
The petroleum industry/market is incredibly complicated. There are a myriad of Economic, Chemical and even Geopolitical elements at play.
As a nation we are woefully unprepared to refine what we produce domestically. Other countries have vastly lower 'Lifting Costs' (the cost in aggregate to recover the oil). They don't have the same labor costs, restrictions, regulations...etc. So.....unless or until new refineries are built here, old ones renovated/restructured to refine either type of crude we will continue to struggle to meet our demands.
When you are already teetering on the edge...it doesn't help to have additional stumbling blocks placed in your way....in the from of increased leasing prices, permitting issues, restrictions and regulations.
'Big Oil' is not about to invest Billions on that uncertain future. And yes, this did not just happen in the last two years. It just got much WORSE in that time period.