The nationalization of oil supplies refers to the process of confiscation of oil production operations and their property, generally for the purpose of obtaining more revenue from oil for the governments of oil-producing countries. This process, which should not be confused with restrictions on crude oil exports, represents a significant turning point in the development of oil policy. Nationalization eliminates private business operations—in which private international companies control oil resources within oil-producing countries—and transfers them to the ownership of the governments of those countries. Once these countries become the sole owners of these resources, they have to decide how to maximize the net present value of their known stock of oil in the ground.[1] Several key implications can be observed as a result of oil nationalization. "On the home front, national oil companies are often torn between national expectations that they should 'carry the flag' and their own ambitions for commercial success, which might mean a degree of emancipation from the confines of a national agenda."[2]
According to consulting firm PFC Energy, only 7% of the world's estimated oil and gas reserves are in countries that allow private international companies free rein. Roughly 65% are in the hands of state-owned companies such as Saudi Aramco, with the rest in countries such as Russia and Venezuela, where access by Western companies is difficult. The PFC study implies political groups unfavorable to capitalism in some countries tend to limit oil production increases in Mexico, Venezuela, Iran, Iraq, Kuwait and Russia. Saudi Arabia is also limiting capacity expansion, but because of a self-imposed cap, unlike the other countries.[3]