Yes, the US oil companies are charging much more now than just a few years back while their costs have remained the same. This applies to their domestic and international production. The Saudis and Venezuela are doing the same. Venezuela just bought 3 billion dollars of military equipment from Russia. Most of that money came from the US. Cisco is owned by Venezuela. Americans need to support the US oil industry so less oil is imported. The worst that can happen to a country is to have a goverment that is funded by oil and not by the economic progress of it’s citizens (e.g Iran, Libya, Iraq and now Venezuela).
This article details how the oil industry will ramp up: