Depends what 'sovereign' implies. The will of the people? Or maybe the will of those that lobby government the hardest (e.g. oil companies)? If the latter, then export bans might not arrive anytime soon.
> possessing supreme or ultimate power: in modern democracies the people's will is in theory sovereign.
For example, in the UK Parliament is sovereign, not the people. That's effectively how it is in representative democracies or republics where there is no fast representative recall mechanism.
The U.S. Constitution doesn't say that Congress is sovereign, but the effect is the same. For that matter, the U.S. President has a great deal of power.