The geopolitics of oil is not that complicated as some people would like you to think. For the US, prices are impacted by supply coming from overseas.
And in today’s wealth of information, we know where our oil is coming from and we know how much pressure will a particular interruption mean to the US oil prices. Here is US imports by country origin from the EIA.
What is the deal with Venezuela
http://news.peak-oil.org/2019/01/crude-oil-futures-up-on-rising-geopolitical-tensions-despite-stock-build-sp-global-platts/
https://www.reuters.com/article/us-global-oil/oil-prices-climb-as-u-s-threatens-sanctions-against-venezuela-idUSKCN1PJ068?il=0