I was afraid of that. Obviously, you believe that history started about 4 years ago, but here's a teaser on the truth. The global price of oil is set on the global market. That market is open to speculators, who neither produce nor receive any oil themselves, only buy some at a certain price and hope to sell at a higher price. At this point, you've probably lost all interest because I'm not yelling, "Orange Man Bad! Orange Man Bad!", but stick with it. Those speculators watch the news very closely for indicators of things that may impact the availability of oil and thus its price. When a president like Quid Pro Joe comes into office, they know he will take steps to lower American oil production (think green and anti-fracking) and thus put more control over the global oil supply in unstable hands. This, they are confident, will lead to higher prices, so they take actions that in turn cause prices to go even higher. Most high school graduates understand this. I should ask, are you a high school graduate? If you are not, I'll stop right here, because I don't want to cause your world view to burst painfully without proper preparation.
Here's the last factoid you need to consider, if you are in fact a high school graduate and can understand it. The price of oil directly impacts the price of gas at the pump.