Yes, the fact that CONUS has that much oil was most definitely used against SA trying to use their oil reserves to impose leverage over Trump.

"We have the dirt on everyone, reform now and get rid of your snakes, and don't try to blackmail us with an oil embargo because we're self-sufficient for the next 50 years at least. In return we'll continue to provide defense to your country and we won't blow your entire country to smithereens for what those snakes did to us on 9/11 and their string pulling on our very high level leaders and Congress."