You are correct and also wrong. The USA does import vast amounts of oil for our refiners. We also export vast amounts of refined products. In actuality we became self sufficient in oil this year 2019. We have become a net exporter of petroleum products. It is not huge amounts at this time. Our shale production of oil continues to grow. If not for shale oil we would probably be looking at 150 dollar a barrel oil if not higher.
The US Consumes about 20 million bbl per day.
https://www.statista.com/statistics/282716/oil-consumption-in-the-us-per-day/
And the US is now producing about 12.4 million bbl per day.
https://www.macrotrends.net/2562/us-crude-oil-production-historical-chart
So I guess we are a NET IMPORTER of 40% of our oil.
Not half.