Heavy dependence on petroleum revenue continues, but industry and agriculture now account for a larger share of economic activity.
Iran's petroleum revenues went from $3 billion to $30 billion in one year.
The politicians say that most of the petroleum revenues will be paid into a fund which will benefit future generations.
With our oil imports responsible for nearly half of Nigeria's petroleum revenues, an embargo would have immediate consequences.
Since 1986, however, petroleum revenues have decreased, and government spending has increased.
Poor policy decisions regarding the allocation of petroleum revenue has caused political unrest in Nigeria.
When the fund starts next year, the Government will try to balance Norway's budget without the benefit of petroleum revenues.
To finance state government operations, Alaska depends primarily on petroleum revenues and federal subsidies.
Whether the country should use more of the petroleum revenues for the state budget instead of saving the funds for the future.
However, high levels of petroleum revenues and French economic assistance will keep the economy going, though at a slow pace.