Nationalization of oil supplies

Nationalization of oil supplies

The nationalization of oil supplies refers to the process of deprivatization of oil production operations, generally in the purpose of obtaining more revenue from oil for 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 the concession system—in which private international companies control oil resources within oil-producing countries—and allows oil-producing countries to regain control. Once these countries become the sole owners of their 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. Fully 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 factors are limiting capacity 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] As a result of not having access to countries amenable to oil exploration, ExxonMobil is not making nearly the investment in finding new oil that it did in 1981.[4]



The nationalization of oil supplies has been a gradual process. Before the discovery of oil, Middle Eastern countries such as Iraq, Iran, Saudi Arabia, and Kuwait were all poor and underdeveloped. They were desert kingdoms that had few natural resources and were without adequate financial resources to maintain the State. Poor peasants made up a majority of the population.[5]

When oil was discovered in these developing nations during the early twentieth century, the countries did not have enough knowledge of the oil industry to make use of the newly discovered natural resources. The countries were therefore not able to mine or market their petroleum.[5]

Major oil companies saw this as an opportunity for profit and they negotiated concession agreements with the developing countries; the companies were given exclusive rights to explore and develop the production of oil within the country. The concession agreements made between the oil producing country and the oil company specified a limited area the company could utilize, lasted a limited amount of time, and required the company to take all the financial and commercial risks as well as pay the host governments surface taxes, royalties, and production taxes. Despite all of this, however, the countries were able to claim any of the oil they mined.[5] As a result, the world’s oil was largely in the hands of seven corporations based in the United States and Europe.[6] Five of the companies were American (Chevron, Exxon, Gulf, Mobil, and Texaco), one was British (British Petroleum), and one was Anglo-Dutch (Royal Dutch/Shell).[5] These companies have since merged into four common oil companies: Shell, ExxonMobil, Chevron, and BP.[6]

The established contracts between oil companies and nations with oil reserves gave the oil companies an advantageous position, leading to the inclusion of choice-of-law clauses. In other words, disputes over contract details would be settled by a third party instead of the host country. The only way for host countries to alter their contracts was through nationalization. Most of the countries, with the exception of Venezuela, even signed away their right to tax the companies in exchange for one time royalty payments.[5]

Although undeveloped nations originally welcomed concession agreements, the movement for nationalism began once the developing countries realized that the oil companies were exploiting them. Led by Venezuela, oil producing countries realized that they could control the price of oil by limiting the supply. The countries joined together as OPEC and gradually they gained control of their own oil supplies rather than allowing the oil companies to control them.[5]

Before the 1970s there were only two major incidents of successful oil nationalization—the first following the Bolshevik Revolution of 1917 in Russia and the second in 1938 in Mexico.[7] Due to the swift growth of the energy economy, resources shifted to becoming nationalized to protect themselves from adjustments in demand worldwide.


Due to the presence of oil, the Middle East has been the center of international tension even before the nationalization of oil supplies. Britain was the first country that took interest in Middle Eastern oil. In 1908, oil was discovered in Persia by the Anglo-Persian oil company under the stimulus of the British government. Britain maintained strategic and military domination of areas of the Middle East outside Turkish control until after World War I when the former Turkish Empire was divided between the British and the French. It turned out that many of the areas controlled by the French had little oil potential.[8]

On the other hand, Britain continued to expand oil interests into other parts of the Persian Gulf. Although oil resources were found in Kuwait, there was not enough demand for oil at the time to develop in this area.[8]

Due to political and commercial pressure, it did not take long before the United States secured an entry into Middle Eastern oil supplies. The British government was forced to allow the US into Iraq and the Persian Gulf states. Iraq became dominated by US oil companies while Kuwait consisted of a 50/50 split between British and American companies.[8]

Up until 1939, Middle Eastern oil remained relatively unimportant in world markets. According to “The Significance of Oil,” the Middle East at the time

“was contributing only 5 percent of total world oil production and its exports were limited to countries within the immediate region and, via the Suez Canal, in western Europe.” [8]

The real significance of pre-1939 developments in the Middle East is that they established the framework for the post-1945 oil expansion.[8]

After WWI, the demand for oil increased significantly as the result of an energy shortage. Due to war-time oil development, which proved the great potential for oil discovery in the Middle East, there was little hesitation in investing capital in Iran, Iraq, Kuwait, and Saudi Arabia.[8]

Huge investments were made to improve the infrastructure needed to transport Middle Eastern oil. For example, investment was made on the Suez Canal to ensure that larger tankers could utilize it. There was also an increased construction of oil pipelines. The expansion of infrastructure to produce and transport Middle East oil was mainly under the operation of the seven major international oil companies.[8]

Early nationalizations

Prior to 1970, there were ten countries that nationalized oil production: the Soviet Union in 1918, Bolivia in 1937 and 1969, Mexico in 1938, Iran in 1951, Iraq in 1961, Burma and Egypt in 1962, Argentina in 1963, Indonesia in 1963, and Peru in 1968. Although these countries were nationalized by 1971, all of the “important” industries that existed in developing countries were still held by foreign firms. In addition, only Mexico and Iran were significant exporters at the time of nationalization.[9]

Reasons for nationalization


The original contracts held between an oil producing country and an oil company were unfair to the producing country. Contracts, which could not be altered or ended in advance of the true end date, covered huge expanses of land and lasted for long durations. Nationalist ideas began once producing countries realized that the oil companies were exploiting them.[5]

The first country to act was Venezuela, which had the most favorable concession agreement. In 1943, the country increased the total royalties and tax paid by the companies to 50% of their total profits. However, true equal profit sharing was not accomplished until 1948. Because oil companies were able to deduct the tax from their income tax, profits acquired by the oil companies did not change significantly and, as a result, the oil companies did not have any major problems with the change imposed by Venezuela. Even with increased oil prices, the companies still held a dominant position over Venezuela.[5]

Change in oil prices

The posted price of oil was originally the determinant factor of the taxes that oil companies had to pay. This concept was beneficial to the oil companies because they were the ones who controlled the posted prices. Companies could increase the actual price of oil without changing the posted price, thus avoiding an increase in taxes paid to the producing country.[5] Oil producing countries did not realize that the companies were adjusting oil prices until the cost of oil dropped in the late fifties and companies started reducing posted prices very frequently.[5] The main reason for the reduction in oil prices was the change in the world’s energy situation after 1957 that led to competition between energy sources. Efforts to find markets led to price cuts. Price cutting was first achieved by shaving profit margins, but soon prices were reduced to levels far lower than posted prices as companies producing oil in the Middle East started to offer crude to independent and state-owned refineries.[8]

Producing countries became aggravated when the companies would reduce the prices without warning. According to “The Significance of Oil,”

“small reductions in posted prices in 1958 and 1959 produced some indications of disapproval from certain Middle East governments, but it was not until major cuts—of the order of 10 to 15 percent—were announced in 1960 that a storm broke over the heads of the companies whose decisions would reduce the oil revenues of the countries by 5 to 7 ½ percent.” [8]

High oil prices, on the other hand, raise the bargaining power of oil-producing countries. As a result, some say that countries are more likely to nationalize their oil supplies during times of high oil prices. However, nationalization can come with various costs and it is often questioned why a government would respond to an oil price increase with nationalization rather than by imposing higher taxes. Contract theory provides reasoning against nationalization.[10]

Structural change of oil producing countries

The Third World went through dramatic structural change between the time oil was first discovered and decades later. Rising nationalism and the emergence of shared group consciousness among developing countries accompanied the end of the formal colonial relationships in the fifties and sixties. Shared group consciousness among the oil exporting countries was expressed through the formation of OPEC, increased contact and communication between countries, and attempts of common action countries during the 1960s. The structure of the industry, which led to increased nationalistic mentality, was affected by the following important changes:[9]

Strategic control

Originally, oil-producing countries were poor and needed oil companies to help them manage the oil reserves located within the country. However, as the countries began to develop, their demands for revenue increased. The industry became integrated into a local economy that required strategic control by the host country over pricing and the rate of production. Gradually, foreign investors lost the trust of oil-producing countries to develop resources in the national interest. Oil-producing countries demanded participation in the control of the oil within their country.[9]

Increased capabilities

Financial capacity, technological abilities, and managerial skills improved quickly due to the revenue that comes from a producing well. This is often seen as a positive feedback loop. Revenue provided the financial basis for further development, which, in turn, increased revenue and development even further. In addition, successful exploration reduced risk and the need for financial capacity. Furthermore, technological innovation and managerial expertise increased dramatically after World War II, which increased the bargaining power of producing countries. Increased bargaining power allowed the companies to change their mode of operation.[9]

Expansion of the oil industry

Stephen J. Kobrin states that

“During the interwar period and through the 1950s, international petroleum was a very tight oligopoly dominated by seven major international oil companies (Exxon, Shell, BP, Gulf, Texaco, Mobil and Chevron—as they are known today). However, between 1953 and 1972 more than three hundred private firms and fifty state-owned firms entered the industry, drawn by the explosion in oil consumption and substantially diminished barriers to entry.” [9]

The new, independent companies disturbed the equilibrium between the major companies and the producing countries. Countries became aware of their options as these companies offered better agreement terms.[9]

Changes in supply and demand

The shortage of oil in the 1970s increased the value of oil from previous decades. The bargaining power of producing countries increased as both the country governments and the oil companies became increasingly concerned about the continued access to crude oil.[9]

Diffusion of ideas between oil producing countries

Rogers defines diffusion as “the process by which (1) an innovation (2) is communicated through certain channels (3) over time (4) among members of a social system.” [9] Innovations may consist of technology, philosophy, or managerial techniques. Examples of communication channels include the mass media, organizations such as OPEC or the U.N., or educational institutions. Due to diffusion, attempts at oil nationalization from producing countries, and whether or not these attempts were successful, affected decisions to nationalize oil supplies. [9]

Two attempts of nationalization that had clear inhibiting effects on other producing countries was the nationalization of Mexico in 1938 and of Iran in 1951, which occurred prior to the important structural change in the oil industry. The Mexican nationalization proved that although it was possible to accomplish nationalization, it came at the cost of isolation from the international industry, which was dominated by the major companies at the time. The Iranian nationalization also failed due to the lack of cooperation with international oil companies. These two incidences proved to other oil producing countries that until the structure of the oil industry changed to rely less upon international oil companies, any attempts to nationalize would be a great risk and would likely be unsuccessful.[9]

Once the structure of the oil industry changed, oil-producing countries were more likely to be successful in nationalizing their oil supplies. The development of OPEC provided the medium in which producing countries could communicate and diffusion could occur rapidly.[9]

The first country to successfully nationalize after the structural change of the industry was Algeria, who nationalized 51% of the French companies only ten days after the Teheran agreement and later was able to nationalize 100% of their companies. The nationalization of Algerian oil influenced Libya to nationalize British Petroleum in 1971 and the rest of their foreign companies by 1974. A ripple effect quickly occurred, spreading first to the more militant oil producers like Iraq and then followed by more conservative oil producers like Saudi Arabia. Stephen J. Kobrin states that

“By 1976 virtually every other major producer in the mid-East, Africa, Asia, and Latin America had followed nationalizing at least some of its producers to gain either a share of participation or to take over the entire industry and employ the international companies on a contractual basis.” [9]

Implications of nationalization

Vertical integration of the oil industry was broken

Due to the overall instability of supply, oil became an instrument of foreign policy for oil-exporting countries.[7] Nationalization increased the stability in the oil markets and broke the vertical integration within the system. Vertical integration was replaced with a dual system where OPEC countries controlled upstream activities such as the production and marketing of crude oil while oil companies controlled downstream activities such as transportation, refining, distribution, and sale of oil products.[1]

Under the new dual structure, OPEC was neither vertically or horizontally integrated and was not able to take over the entire oil sector from the oil companies. The temporary fear of an oil shortage during the 1970s helped to hide this consequence. In addition, relations between producing countries of the Persian Gulf and previous concessionary companies induced an “artificial” vertical integration. These relations included long-term contracts, discount of official prices, and phase-out clauses. Free markets started to become prevalent in 1981 after the trade in oil switched from being a sellers’ to a buyers’ market.[1]

Oil companies lost access to oil supplies

According to the Energy Studies Review,

"between 1973 and 1982, companies lost around 50% of their share of the crude oil market, from 30 million barrels per day (MMbbl/d) to around 15.2 MMbbl/d, while 'free world' demand decreased only 15% over the same time period. Even more significant, in 1982 the major (oil companies) could rely on 6.7 MMbbl/d of production from the reserves under their control, while the corresponding number in 1973 was 25.5 MMbbl/d—a decrease of 74% in less than 10 years." [1]

As a result, important oil companies were became important net buyers of crude oil after a long time of being vertically integrated sellers to their own refineries.[1]

Change in the horizontal integration of the oil industry

The increase in oil prices of the 70s attracted non-OPEC producers—Norway, Mexico, Great Britain, Egypt, and some African and Asian countries—to explore within their country. In 1965, the Herfindahl index of horizontal integration for the crude oil production industry was 1600 and the horizontal integration for the exploration industry was 1250. By 1986, it decreased to around 930 for the crude oil production industry and 600 for the exploration industry. This created a further destabilizing factor for OPEC.[1]

Restructuring of the refining sector

The world refining capacity of the major oil companies in 1973 was 23.2 Mbbl/d (3,690,000 m3/d). However, by 1982, their world refining capacity had decreased to 14 Mbbl/d (2,200,000 m3/d). This decrease was a result of their decreased access to the oil reserves of OPEC countries and, subsequently, the rationalization of their world refining and distribution network in order to decrease their dependence on OPEC countries. The increase in the refining capacity of OPEC countries that wanted to sell not only crude oil but also refined products further reinforced this trend towards rationalization.[1]

Change in the spot market

The nationalization of oil supplies and the emergence of the OPEC market caused the spot market to change in both orientation and size. The spot market changed in orientation because it started to deal not only with crude oil but also with refined products. The spot market changed in size because as the OPEC market declined the number of spot market transactions increased.[1] The development of the spot market made oil prices volatile. The risks involving oil investment increased. In order to protect against these potential risks, parallel markets such as the forward market developed. As these new markets developed, price control became more difficult for OPEC. In addition, oil was transformed from a strategic product to a commodity.[1] Changes in the spot market favored competition and made it more difficult for oligopolistic agreements. The development of many free markets impacted OPEC in two different ways:

  1. A destabilizing effect occurred that made it easier for OPEC members not to respect their own quota if they did not want to.[1]
  2. A stabilizing effect occurred that provided an incentive for cooperation among OPEC members. Decreased prices due to free markets made it more profitable for OPEC countries to work together rather than to seek profit individually.[1]

OPEC countries


Ecuador has had one of the most volatile oil policies in the region, partly a reflection of the high political volatility in the country.[11] Petroecuador accounts for over half of oil production, however, as a result of financial setbacks combined with a drop in oil price, private companies increased oil investments in Ecuador. In the early 1990s annual foreign investment in oil was below US$ 200 million, by the early 2000s it had surpassed US $1 billion (Campodónico, 2004).[11] Changes in political power led to an increase in government control over oil extraction. In particular, the election of President Rafael Correa, on a resource-nationalism platform, prompted increases in government control and the approval of a windfall tax.[11]


Since its beginning, Iran's oil industry has experienced expansion and contraction. Rapid growth at the time of World War I declined soon after the start of World War II. Recovery began in 1943 with the reopening of supply routes to the United Kingdom. The oil was produced by what became the Anglo-Iranian Oil Company, but political difficulties arose with the Iranian government in the postwar period.[12]

In the late 19th century, when interest in petroleum as an industrial grade fuel first emerged, Iran under the Qajar dynasty was in economic and political disarray.[13] Iran, now among the world's leading crude-oil exporters, could become a net importer of oil within the next decade due to rising demand and slow-growing production.[14] Possessing the world's second-biggest proven reserves of oil, it infuriated its people when the government brought in petrol rationing on two hours notice.[15] Due to limited refinery capacity, it has discouraged gasoline usage. Shortly after the petrol/gasoline rationing, which has reduced demand in some areas by 20%-30%, it announced it will not be producing cars powered only by gasoline.[16]


The properties of the majors were nationalized totally in Iraq, in 1972.[17] Worldwide oil shortages major oil supplies in the 1970s forced major oil suppliers to look elsewhere for ways to acquire the resource. Under these circumstances, NOCs often came forward as alternative suppliers of oil.[17] Nationalization of the Iraq Petroleum Company (IPC) in 1972 after years of rancor, together with restrictions on oil liftings by all but one of the IPC's former partners, put Iraq at the forefront of direct marketing.[17] Iraq's oil production suffered major damage in the aftermath of the Gulf War. In spite of United Nations sanctions, has been rebuilding war-damaged oil facilities and export terminals.[12] Iraq plans to increase its oil productive capacity to 4 Mbbl/d (640,000 m3/d) in 2000 and 6 Mbbl/d (950,000 m3/d) in 2010.[12]


Libya, in particular, sought out independent oil firms to develop its oilfields; in 1970, the Libyan government used its leverage to restructure radically the terms of its agreements with these independent companies, precipitating a rash of contract renegotiations throughout the oil-exporting world.[17]


The discovery of oil in Nigeria caused conflict within the state. The emergence of commercial oil production from the region in 1958 and thereafter raised the stakes and generated a struggle by the indigenes for control of the oil resources.[18] The northern hegemony, ruled by Hausa and Fulani, took a military dictatorship and seized control of oil production. To meet popular demands for cheaper food during the inflationary period just after the civil war, government created a new state corporation, the National Nigerian Supply Company (NNSC).[19] While oil production proceeded, the region by the 1990s was one of the least developed and most poor.[18] The local communities responded with protests and successful efforts to stop oil production in the area if they did not receive any benefit. By September 1999, about 50 Shell workers had been kidnapped and released.[18] Not only are the people of Nigeria affected, but the environment in the area is also affected by deforestation and improper waste treatment. Nigerian oil production also faces problems with illegal trade of the refined product on the black market. This is undertaken by authorized marketers in collusion with smuggling syndicates.[18] Activities such as these severely affect the oil industries of both the state and MNCs. Oil production deferments arising from community disturbances and sabotage was 45mm barrels in 2000 and 35mm barrels in 2001.[18] The state has not been a very effective means of controlling incursions such as these. The illegal oil economy in such a circumstance may continue to exist for a long time, albeit in curtailed and small scales.[18]

Saudi Arabia

By 1950, Saudi Arabia had become a very successful producing area with an even greater oil production potential remaining to be developed. Because of favorable geological conditions and the close proximity of oil fields to the coast, Saudi Arabia operations were low cost. American companies therefore heavily valued the oil. The joint concessionary company, ARAMCO, agreed to the government’s demand to use the introduced posted price as a way to calculate profits. Profit-sharing between ARAMCO and Saudi Arabia was established as a 50/50 split.[8]


In 1958 a revolution in Venezuela brought an end to their military dictatorship.[5] The newly elected Minister of Mines and Hydrocarbons, Juan Pablo Pérez Alfonso, acted to raise the income tax on oil companies and introduced the key aspect of supply and demand to the oil trade. Nationalization of oil supplies was achieved in 1976. Major oil companies operating in Venezuela have had difficulty with the spreading resource nationalism. After decades of high investment, in the 1960s and 1970s oil taxation of the IOCs was significantly increased and oil concessions were not renewed.[11] Exxon Mobil and ConocoPhilips have said they would walk away from their large investment in the Orinoco heavy-oil belt rather than accept tough new contract terms which raise taxes and oblige all foreign companies to accept minority shares in joint ventures with the state oil company, Petróleos de Venezuela (PDVSA).[20] The projects offered to foreign investors were often those which entailed high costs for extraction, leading to lower implicit tax rates. In the late 1990s, private investment substantially increased, adding 1.2 million BD of production by 2005.[11] While private investors were producing more oil and PDSVA decreased oil production, Venezuela still managed to increase its oil fiscal take for each barrel. Continued shortcomings for PDSVA spurred an effort to eliminate the company, leading to a strike which severely reduced investment and production. This gave to government opportunity to seize control and, as a result, in the last two years the contractual framework of the oil opening has been significantly changed, considerably increasing the government-take and control over private investments.[11]

Non-OPEC countries


Canada reigns as the United States' leading oil supplier, exporting some 707,316,000 barrels (112,454,300 m3) of oil per year (1.938.00 barrels per day (0.308 m3/d)), 99 percent of its annual oil exports, according to the EIA.[21] Following the OPEC oil embargo in the early 1970s, Canada took initiative to control its oil supplies. The result of these initiatives was Petro-Canada, a state-owned oil company. Petro-Canada put forth national goals including, increased domestic ownership of the industry, development of reserves not located in the western provinces, that is to say, the promotion of the Canada Lands in the north and offshore, better information about the petroleum industry, security of supply, decrease dependence on the large multinational oil corporations, especially the Big Four, and increase revenues flowing to the federal treasury from the oil and gas sector.[22]

Petro-Canada has been met with opposition mainly from Alberta, home to one of the main oil patches in Canada. After negotiating a royalty increase on oil and price increases for natural gas, Lougheed asserted Alberta’s position as the centre of Canada’s petroleum industry.[22] Alberta had since been the main source of oil in Canada since the 1970s. The clashing viewpoints of resource control has resulted in conflict over the direction of Canada's oil industry.


Mexico nationalized its oil industry in 1938, and has never privatized, restricting foreign investment. Important reserve additions in the 1970s allowed a significant increase in production and exports, financed by the high oil prices.[11] Despite producing more oil than any other country in Latin America, oil does not carry a relevant proportion of Mexico's exports. Since the giant Cantarell Field in Mexico is now in decline, the state oil company Pemex has faced intense political opposition to opening up the country's oil and gas sector to foreign participation. The lack of financial autonomy has limited Pemex’s own investment capacity, inducing the company to become highly indebted and to use an out of budget mechanism of deferred payment of projects (PIDIREGAS) to finance the expansion of production.[11] Some feel that the state oil company Pemex does not have the capacity to develop deep water assets by itself, but needs to do so if it is to stem the decline in the country's crude production.[23]


Since Putin assumed the Russian Presidency in January 2000, there has been what amounts to a creeping re-nationalization of the Russian oil industry.[24] In Russia, Vladimir Putin's government has pressured Royal Dutch Shell to hand over control of one major project on Sakhalin Island, to Russia's Gazprom in December. The founder of formerly private Yukos has also been jailed, and the company absorbed by state-owned Rosneft.[25] Such moves strain the confidence of international oil companies in forming partnerships with Russia.[14] Russia has taken notice of their increasing foreign oil investment improving politics with other countries, especially former states of the Soviet Union. Oil industry in Russia is one of the top producers in the world, however, the proven reserves in Russia are not as prevalent as in other areas. Furthermore, previously accessible oil fields have been lost since the Cold War. With the collapse of the USSR, Russia has lost the rich Caspian Basin off-shore and on-shore oil fields in the Central Asian states and Azerbaijan.[24]

See also


  1. ^ a b c d e f g h i j k Ayoub, Antoine (1994). "Oil: Economics and Political". Energy Studies Review (DigitalCommons@McMaster) 6 (1): 47–60. Retrieved 2010-12-20. 
  2. ^ Valérie Marcel (2006). "Oil Titans: National Oil Companies in the Middle East". Brookings Institution Press. 
  3. ^ Sheila McNulty (2007-05-09). "Politics of oil seen as threat to supplies". Financial Times. 
  4. ^ Justin Fox (2007-05-31). "No More Gushers for ExxonMobil". Time magazine.,9171,1626994,00.html. 
  5. ^ a b c d e f g h i j k Adam Bird and Malcolm Brown (2005-06-02). "The History and Social Consequences of a Nationalized Oil Industry". 
  6. ^ a b Antonia Juhasz (2007-03-13). "Whose Oil Is It, Anyway?". The New York Times. 
  7. ^ a b Morse, Edward (1999). "A New Political Economy of Oil?". Journal of International Affairs (The Trustees of Columbia University) 53 (1). Retrieved 2010-11-20. 
  8. ^ a b c d e f g h i j Odell, Peter R. (1968). "The Significance of Oil". Journal of Contemporary History (Sage Publications) 3 (3, The Middle East): 93–110. JSTOR 259700. 
  9. ^ a b c d e f g h i j k l Kobrin, Stephen J. (1985). "Diffusion as an Explanation of Oil Nationalization: Or the Domino Effect Rides Again". Journal of Conflict Resolution (Sage Publications) 29 (3): 3–32. Retrieved 2010-12-20. 
  10. ^ Guriev, Sergei; Kolotilin, Anton; Sonin, Konstantin (2009). "Determinants of Nationalization in the Oil Sector: A Theory and Evidence from Panel Dat". Journal of Law, Economics, and Organization (Oxford University Press): 1–23. Retrieved 2010-11-20. 
  11. ^ a b c d e f g h Manzano, Osmel; Monaldi, Francisco (2008). "The Political Economy of Oil Production in Latin America". LACEA’s Journal. Retrieved 2010-12-20. 
  12. ^ a b c Riva, Jonathon P. (1995). "World Oil Production After Year 2000: Business AS Usual or Crisis?". CRS Report for Congress. Retrieved 2010-11-20. 
  13. ^ Brumberg, Daniel; Ahram, Ariel I. (2007). The National Iranian Oil Company in Iranian Politics. The National Iranian Oil Company in Iranian Politics. Retrieved 2010-12-20. 
  14. ^ a b Mark Trumbull (2007-04-03). "Risks of rising oil nationalism". Christian Science Monitor. 
  15. ^ Mark Colvin and Sabra Lane (2007-06-28). "Iran's oil restrictions 'a warning for Australia'". Energy Bulletin. 
  16. ^ "Iran ends petrol-only car making". BBC. 2007-06-07. 
  17. ^ a b c d Levy, Brian (1982). "World Oil Marketing in Transition". International Organization (Cambridge University Press) 36 (1): 113–133. Retrieved 2010-12-20. 
  18. ^ a b c d e f Ikelegbe, Augustine (2005). "The Economy of Conflict in the Oil Rich Niger Delta Region of Nigeria". Nordic Journal of African Studies 14 (2): 208–234. Retrieved 2010-11-20. 
  19. ^ Wilson III, Ernest J. (1990). "Strategies of State Control of the Economy: Nationalization and Indigenization in Africa". Comparative Politics (Ph.D. Program in Political Science of the City University of New York) 22 (4): 401–419. JSTOR 421971. 
  20. ^ "It's our oil". The Economist. 2007-06-28. 
  21. ^ Editors (2010-07-28). "The Top Seven Suppliers of Oil to the US". Global Post. 
  22. ^ a b Brownsey, Keith (2007). "The New Order: The Post Staples Paradigm and the Canadian Upstream Oil and Gas Industry". Canadian Political Science Review 1: 91–106. Retrieved 2010-12-20. 
  23. ^ Ross McCracken (2007). "IOCs, NOCs Facing Off Over Scarcer Resources". Platts. 
  24. ^ a b Hill, Fiona; Fee, Florence (2002). "Fueling the Future: The Prospects for Russian Oil and Gas". Demokratizatsiya 10 (4): 462–487. Retrieved 2012-12-20. 
  25. ^ "Country Profile: Russia". BBC. 2007-09-17. 

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