> 1. US is the largest oil producer country in the world

[citation needed]

Here's mine, Saudi Arabia is by far the largest exporter:

https://en.wikipedia.org/wiki/List_of_countries_by_oil_expor...

Perhaps you're confusing oil production with refined petroleum (e.g. gasoline) exports?

Edit: Thanks for the correction, looks like for the last 8 or so years US has indeed occupied the top slot for production:

https://en.wikipedia.org/wiki/File:EIA_Oil_Production.png