We are mad to be upsetting Russia, they are the largest producer of crude oil and the second largest producer of natural gas.
The USA is near enough self-sufficient for natural gas and has maintained a very close connection with Saudi for crude oil.
Overall if Russia switched off the taps the USA may not have a problem but European countries would. I've never gone along with the idea that the USA is happy for a new super-power being created called the EU.
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell
When the debate is lost, slander becomes the tool of the loser. Socrates