When you are dealing with supply and demand. The less you can produce the more expensive it is. But in this case with the growth of the railroads delivering steady supplies the prices would go down, not up.
The main reason why OPEC imposed an oil embargo on the US is because the US supported Israel in its “Yom Kippur War” with Egypt, and OPEC was made up of states that were against Israel, who was fighting the war against Egypt.
