- The price of oil is volatile considering the complexity of the industry.
Not enough for maduro & friends, they still need to take so much advantage

- Oil is a depletable asset, and one cannot practically exchange Petro units for barrels of oil.
Sure but be 100% that who need to made profit because of it, will made profit

- The Venezuelan opposition has labeled it as a scheme to enhance corruption since it is not regulated.
Corruption? maduro? nono, this is impossible, you are wrong, this must be a joke

- U.S. and EU have raised concerns regarding sanctions placed on Venezuela.
Why? there is nothing wrong, they invent that petro for the sake of the people...
Seriously, if you think that things are going wrong with this guy, just wait one or two years...