In 2008 US production of crude oil and petroleum products was 6.8 million barrels a day. This September, it was 17.5 million barrels a day. From Wolf Richter at wolfstreet.com:
The US Becomes Net Exporter of Crude Oil & Petroleum Products for First Time.
US exports of crude oil and petroleum products – this includes gasoline, diesel, jet fuel, naphtha, and many others – exceeded imports in September by 89,000 barrels a day, the EIA reported today, and so the US became a “net exporter” of crude oil and petroleum products for the first time on a monthly basis in the EIA’s data going back to 1973:

The US has exported petroleum products – gasoline, diesel, heating oil, naphtha, propane, etc. – for a long time. This is the business some refineries are in. They buy crude oil from wherever they can get it, including other countries, and sell refined product to customers in the US and other countries.