And why would countries adopt this? So that other countries can use this cartel to push their own agenda? If anything it seems like it would be in every country's best interests to make sure such an organization doesn't exist.

In my opinion one of the reasons why European economies have been struggling for a long time is because energy has been much more expensive than elsewhere. Part of it is the excise tax on gasoline because it drives up the price of everything.

Even to this day EU countries where people earn less than a third of what Americans earn still pay more for gasoline.