The recent flexing by Congress of their War Powers Act authority [1][2] in regards to Yemen / Saudi Arabia - which was unprecedented in recent US history - may have only occurred due to the boom in US oil production. I'd expect that most of Congress would have been a lot more concerned with upsetting the relationship with Saudi Arabia otherwise.

[1] https://www.npr.org/2018/12/11/675343616/often-quiet-on-wars...

[2] https://foreignpolicy.com/2018/11/28/senate-advances-resolut...