By augmenting the relatively light domestic crude oil production with relatively heavy crude oil imports, the United States has significantly increased its ability to export refined product, according to the US EIA.
In general, domestically produced crude oil is light when compared with imported oil.
For example, in 2018, 56% of the oil produced in Texas, the largest crude oil-producing state, was relatively light with an API gravity between 40 and 50 degrees.
At the same time, 58% of imported...
https://safety4sea.com/eia-us-crude-oil-production-increases-imports-remain-strong/