Saudi Aramco

Saudi Arabian Oil Company (Saudi Aramco)
Type	Public; majority state-owned
Traded as	Tadawul: 2222
Industry	Oil and gas; Petrochemicals
Founded	29 May 1933 as the California Arabian Standard Oil Company
Headquarters	Dhahran, Eastern Province, Saudi Arabia
Key people	Amin H. Nasser (President and chief executive officer); Yasir Al-Rumayyan (Chairman)
Products	Crude oil, natural gas, refined products, petrochemicals
Employees	Approximately 73,000
Website	aramco.com

Saudi Aramco, formally the Saudi Arabian Oil Company, is the national oil company of Saudi Arabia, headquartered at Dhahran in the Eastern Province. It is the largest oil producer in the world, holds the largest proved conventional crude oil reserves of any company, and has at several points been the most valuable company on any exchange.

The company operates the Ghawar field, the largest conventional oil field ever discovered, together with Safaniya, the largest offshore field, and a very large number of others, and it produces roughly a tenth of the world's oil. Its cost of production is among the lowest anywhere, in the region of a few dollars a barrel for lifting costs, a consequence of the geology rather than of any particular skill: the oil is in enormous reservoirs at shallow depth with natural pressure sufficient to drive it to the surface.

Aramco listed approximately 1.5 per cent of its shares on the Saudi Exchange on 11 December 2019, in what was then the largest initial public offering ever conducted, raising approximately US$25.6 billion and subsequently US$29.4 billion with the over-allotment. The shares rose to 35.2 riyals on the first day, valuing the company at about US$1.88 trillion, and passed US$2 trillion on the second. The Saudi state, directly and through the Public Investment Fund, retains the overwhelming majority.

The company is inseparable from the Saudi state. Its revenue funds a very large proportion of the government budget, its chairman is the governor of the sovereign wealth fund, its production decisions implement OPEC policy set by the government, and its facilities have been targets in regional conflict, most seriously in the drone and missile attack on Abqaiq and Khurais in September 2019 which briefly removed approximately five per cent of global supply.

History

Concession and discovery, 1933 to 1950

The concession was signed on 29 May 1933 between the Kingdom of Saudi Arabia, established the previous year by Abdulaziz Ibn Saud, and Standard Oil of California, which formed the California Arabian Standard Oil Company to operate it.

The kingdom was extremely poor. Its principal income had been from pilgrimage, which the Depression had reduced, and the concession's initial payment of £35,000 in gold was a substantial sum in that context. The Americans were chosen partly because they had no imperial history in the region, which mattered to Ibn Saud.

Exploration was unsuccessful for five years. The seventh well at Dammam, drilled deeper than the others on the geologists' insistence and after the company had nearly abandoned the effort, struck oil in commercial quantity on 3 March 1938. Dammam No. 7 is known as the Prosperity Well and produced for nearly half a century.

The Texas Company joined in 1936, creating what became the Arabian American Oil Company, or Aramco, in 1944, and Standard Oil of New Jersey and Socony-Vacuum joined in 1948, so that the four shareholders were the companies that became Chevron, Texaco, Exxon and Mobil.

Development proceeded rapidly after the Second World War. The Ras Tanura refinery and terminal opened, the Trans-Arabian Pipeline to the Mediterranean was completed in 1950, and the fifty-fifty profit-sharing agreement of December 1950, under which the kingdom received half of Aramco's profits, established the principle that transformed the economics of oil concessions throughout the region.

Ghawar was discovered in 1948. It is approximately 280 kilometres long and remains the largest conventional oil field ever found, having produced more than 60 billion barrels.

Nationalisation, 1972 to 1988

The kingdom acquired its interest in stages, beginning with 25 per cent in 1973, rising to 60 per cent in 1974 and to full ownership in 1980, backdated to 1976, with compensation paid to the American shareholders. The process was conducted by negotiation rather than by expropriation, which is why Aramco's relationship with the international companies and the continuity of its technical organisation survived, in contrast to nationalisations elsewhere.

The Saudi Arabian Oil Company was formally established by royal decree in November 1988, taking over Aramco's operations and assets.

The 1973 oil embargo, in which Arab producers restricted supply to states supporting Israel in the Yom Kippur War, quadrupled prices and demonstrated the kingdom's position in the world economy. Saudi Arabia's subsequent role, generally that of maintaining spare capacity and moderating prices, has made it the only producer capable of influencing the market by choice, and Aramco is the instrument of that policy.

Ali Al-Naimi, who had joined Aramco as an office boy in 1947, became the first Saudi president in 1984 and subsequently oil minister, a trajectory that is frequently cited as evidence of the company's meritocratic internal culture.

Expansion and integration, 1990 to 2018

Aramco expanded downstream, into refining, distribution and petrochemicals, on the reasoning that a producer exposed only to crude prices is exposed to a volatile and ultimately declining market, and that integration captures more of the value chain and secures demand.

International refining ventures included Motiva in the United States, initially with Shell and Texaco and wholly owned since 2017, including the Port Arthur refinery in Texas, the largest in the country; S-Oil in South Korea, of which Aramco holds a majority; Fujian in China with Sinopec and ExxonMobil; Showa Shell in Japan; and joint ventures in India and elsewhere.

Domestic integration produced Petro Rabigh, a joint venture with Sumitomo Chemical begun in 2005 on the Red Sea coast, which combines a refinery with petrochemical production, and SATORP with TotalEnergies at Jubail. In 2008 Aramco divested a quarter of Rabigh Refining and Petrochemical through a public listing, with Aramco and Sumitomo each retaining 37.5 per cent.

The largest single step was the acquisition of 70 per cent of SABIC, the Saudi Basic Industries Corporation, from the Public Investment Fund in 2020 for approximately US$69 billion, which made Aramco one of the largest petrochemical companies in the world. The transaction also transferred a very large sum from Aramco to the sovereign fund, which was its principal purpose in the context of the kingdom's diversification programme.

Listing and since, 2019 to 2026

The listing had been announced by Crown Prince Mohammed bin Salman in 2016 as part of Vision 2030, the programme intended to reduce the kingdom's dependence on oil, with the proceeds to be invested by the Public Investment Fund in other industries.

The original intention was an international listing at a valuation of US$2 trillion. International exchanges were examined and rejected, principally because of disclosure requirements, litigation exposure and governance conditions, and the offering was conducted domestically in December 2019, with a large proportion taken by Saudi institutions and individuals under considerable official encouragement.

On 14 September 2019, three months before the listing, drones and cruise missiles struck the Abqaiq processing facility and the Khurais field. Abqaiq is the largest crude stabilisation plant in the world and handles a very large share of Saudi production. The attack removed approximately 5.7 million barrels a day, about five per cent of global supply, and was the single largest supply disruption in history. Yemen's Houthi movement claimed responsibility; American and Saudi assessments attributed it to Iran. Aramco restored production within weeks, a recovery faster than almost any outside observer had thought possible and which was itself a demonstration of the company's operational capability.

Subsequent events have included the acquisition of Esmax Distribución in Chile from Southern Cross Group, announced in September 2023, giving Aramco a retail position in Latin America; the sale in August 2025 of a 49 per cent interest in the Jafurah gas processing facilities to a consortium led by BlackRock for US$11 billion, structured as a lease and leaseback so that Aramco raised capital while retaining control; a 20-year agreement signed in early 2026 to take one million tonnes a year of American liquefied natural gas; and the announcement in March 2026 of the company's first share repurchase programme, authorising up to US$3 billion over 18 months.

On 25 July 2026 the Houthi movement claimed operations against Aramco facilities at Jizan and Yanbu using ballistic missiles, cruise missiles and drones.

Aramco was ranked first on Forbes Middle East's list of the top 100 listed companies in 2025.

Operations

Upstream

Aramco's proved reserves are approximately 260 billion barrels of oil equivalent, the largest held by any company, with a reserves-to-production ratio far longer than that of any international competitor.

Its maximum sustainable capacity has been approximately 12 million barrels a day, and the company was directed in 2020 to raise it to 13 million by 2027, a target the government cancelled in January 2024 and instructed it to maintain at 12 million instead, a decision widely interpreted as an acknowledgement that future demand may not require the additional capacity.

Ghawar, discovered in 1948, remains the largest producing conventional field. Its output was disclosed in the 2019 bond prospectus at approximately 3.8 million barrels a day, lower than the figure of around 5 million that analysts had assumed, which caused considerable comment because the company's production data had never previously been public.

Safaniya, discovered in 1951, is the largest offshore field in the world. Other significant fields include Khurais, Shaybah in the Empty Quarter, Manifa, Zuluf, Berri and Abqaiq.

Gas has become a strategic priority. Saudi Arabia burns crude oil for domestic power generation, a practice that consumes barrels that could be exported, and substituting gas frees them. The Jafurah field, the largest unconventional gas development outside the United States, is the central project, with production beginning in 2025 and an intended plateau of two billion cubic feet a day of sales gas.

Spare capacity is the company's most distinctive asset and is not commercially rational on its own terms. Maintaining several million barrels a day of production capacity that is not used costs money and exists because the kingdom's strategic position depends on the ability to raise output quickly, which is what makes Saudi Arabia the swing producer and gives it influence disproportionate to its market share.

Downstream

Aramco's refining capacity, domestic and through joint ventures, exceeds five million barrels a day, and the company has stated an ambition to process a substantial proportion of its own crude.

Domestic refineries include Ras Tanura, Yanbu, Riyadh, Jazan and the joint ventures at Jubail with TotalEnergies and at Rabigh with Sumitomo. International positions include Motiva in the United States, S-Oil in South Korea, Fujian in China, Idemitsu in Japan and holdings in India, Pakistan, Poland through a stake in the Gdańsk refinery acquired with PKN Orlen, and Chile through Esmax.

Petrochemicals expanded enormously with SABIC. The strategic reasoning, common across the industry, is that transport fuel demand will eventually decline while demand for plastics, fertilisers and chemical feedstocks will continue to grow, so that a producer should direct an increasing proportion of its barrels into chemicals. Aramco has pursued crude-to-chemicals technology intended to convert a very high proportion of a barrel directly into petrochemical products, and has announced projects in China and elsewhere on that basis.

Technology

Aramco operates substantial research facilities at Dhahran and research centres in the United States, Europe, China, South Korea and Japan.

Its technical work has concentrated on reservoir management, where its techniques for maintaining pressure through water injection in very large fields are among the most advanced anywhere; on enhanced recovery; on drilling and on smart completions; on carbon capture, including the Uthmaniyah demonstration project; on hydrogen, where the kingdom has positioned itself as a potential large exporter of blue hydrogen and ammonia produced from gas with carbon capture; and on engine and fuel research directed at improving the efficiency of internal combustion, which is both a research programme and an argument about the future of its principal product.

The geology

The reason Saudi Arabia holds the position it does is geological, and the explanation is worth giving because it is the foundation of everything else in this article.

Oil forms where organic material accumulates in an anoxic marine environment, is buried to a depth at which temperature converts it to hydrocarbons, migrates upward through permeable rock, and is trapped beneath an impermeable seal in a structure that holds it.

Eastern Arabia has all four conditions in combination and at very large scale. The source rocks are Jurassic marine shales, principally the Hanifa and Tuwaiq Mountain formations, deposited across an extensive shallow basin. The reservoir is the Arab-D, a carbonate of exceptional porosity and permeability, meaning that oil flows through it easily rather than being locked in tight pores. The seal is the Hith anhydrite, a thick evaporite layer that is effectively impermeable. And the traps are very large, gentle anticlines formed by the movement of deeper salt and by regional compression, producing structures that are tens or hundreds of kilometres long rather than a few.

The consequences for production are direct. The reservoirs are at moderate depth, so wells are cheap to drill. The permeability is high, so each well produces at very high rates, sometimes more than ten thousand barrels a day where a typical American shale well produces a few hundred. The natural pressure and the aquifer beneath drive oil to the surface without pumping for much of the field's life. And the size of the structures means that a small number of fields account for the great majority of production, so that infrastructure is concentrated and cheap per barrel.

This combination does not exist anywhere else at the same scale. It is why Saudi lifting costs are a few dollars a barrel while other producers' are tens, why the kingdom can maintain spare capacity that nobody else can afford, and why Aramco's margin is the highest of any large company in any industry.

The corresponding constraint is water. Production from these reservoirs is maintained by injecting water to replace the oil withdrawn and hold the pressure up, and the produced fluid becomes progressively wetter over time. Managing the water cut across a field the size of Ghawar for seventy years without damaging the reservoir is the technical problem Aramco has spent its existence solving, and its record in doing so is the principal reason the fields have lasted as long as they have.

Historical notes

Several episodes in the company's history are worth recording separately.

The Dammam wells. Six wells drilled between 1935 and 1937 found either nothing or quantities too small to justify continuing. The seventh was drilled deeper, to more than 1,400 metres, on the insistence of the geologist Max Steineke, whose persistence against a company preparing to withdraw is the reason the concession was not abandoned.

The Red Line Agreement. The 1928 arrangement among the major oil companies, under which they agreed not to compete independently within the boundaries of the former Ottoman Empire, applied to much of the region and did not cover Saudi Arabia, which is one reason an American company obtained the concession rather than the British and French interests that dominated elsewhere.

Roosevelt and Ibn Saud. The meeting aboard the USS Quincy in the Great Bitter Lake in February 1945, on the king's return from the Yalta conference, is conventionally treated as the founding of the American-Saudi relationship, and the oil concession was its substance.

The 1973 embargo. The restriction of supply to states supporting Israel during the Yom Kippur War quadrupled prices within months, caused rationing and queues across the industrialised world, and marked the moment at which the producing states rather than the companies determined the price of oil.

The 1979 Grand Mosque seizure and the 1980s. The internal religious and political pressures of the period shaped the kingdom's subsequent social policy and, indirectly, the pace at which Aramco could recruit and educate women, a constraint that eased substantially only after 2017.

The 2004 Yanbu and Khobar attacks. Armed assaults on facilities and on expatriate housing killed several employees and led to a substantial hardening of security across the company's operations.

The 2012 Shamoon cyberattack. Malware destroyed data on approximately 30,000 workstations within the company's corporate network, an attack attributed by American and Saudi officials to Iran. Production systems, which are separated from the corporate network, were unaffected, and the incident is among the most-studied examples of destructive cyber operations against a company.

Finances

Aramco has at several points reported the largest net income of any company in the world, exceeding US$160 billion in 2022 when prices were high following the invasion of Ukraine.

Its revenue and profit move with the oil price, and its cost base is unusually low, which means that its margin is very high at almost any price at which the market operates.

The company pays an exceptionally large dividend, which has at times exceeded US$90 billion a year including performance-linked components, and the great majority of it flows to the Saudi state directly or through the Public Investment Fund. This is the mechanism by which oil revenue reaches the budget and the sovereign fund, and it has meant that the company borrowed to sustain the dividend during periods when cash flow did not cover it, a practice that attracted comment from rating agencies and investors.

Royalty and tax arrangements have been adjusted several times, generally in ways that transfer more to the state when prices are high and less when they are low. The company's listing prospectus and subsequent reporting have made its finances public for the first time in its history, which is a substantial change in the transparency of the world oil market.

The March 2026 authorisation of up to US$3 billion of share repurchases over 18 months was the company's first such programme.

Corporate affairs

Amin H. Nasser, a Saudi petroleum engineer who joined the company in 1982, has been president and chief executive since 2015. Yasir Al-Rumayyan, the governor of the Public Investment Fund, has been chairman since 2019, replacing the energy minister in a change intended to separate the company's governance from the ministry that sets production policy, a separation that observers regard as formal rather than substantive.

Aramco employs approximately 73,000 people. Its Dhahran headquarters sits within a residential compound built by the American companies in the 1930s and 1940s that retains a distinctly American suburban character, and the company operates schools, hospitals and services for its employees on a scale characteristic of a state within a state.

It has long been regarded as the most professionally run institution in the kingdom and as a principal route of technical education for Saudis, with substantial training programmes and university sponsorship, including the King Abdullah University of Science and Technology, endowed by the state and closely associated with the company.

The company's cultural and sporting sponsorship has grown, including Formula One, in which it has been a global partner since 2020 and title sponsor of the Aston Martin team, golf through LIV, in which the Public Investment Fund rather than Aramco is the investor, and the 2027 Asian Winter Games. This activity has been criticised as sportswashing, the use of sponsorship to improve the reputation of a state and of an industry.

Saudi Aramco and the oil market

Aramco's significance to the world economy exceeds what its market share alone would suggest, and the reason is spare capacity.

The swing producer

Most oil producers operate at their maximum sustainable rate, because a barrel not produced is revenue forgone and because their fields decline if not produced continuously. Saudi Arabia does not. It maintains capacity substantially above its production, typically between one and three million barrels a day, which allows it to increase output within weeks.

This makes it the only producer capable of responding to a supply disruption elsewhere, and the only one whose decisions can move the price by choice rather than by accident. The capacity is expensive to maintain and produces no revenue while idle, and it is retained because it is the source of the kingdom's strategic weight.

The position has been exercised in both directions. Saudi Arabia raised production to offset the loss of Iranian supply in 1979, of Iraqi and Kuwaiti supply in 1990, and of Libyan supply in 2011. It also raised production to defend market share in 1985, collapsing the price and ending a period in which it had been cutting output while other producers did not, and again in 2014 and, most dramatically, in March 2020, when the collapse of a production agreement with Russia led to a brief price war that coincided with the pandemic and drove prices to unprecedented lows, including a negative settlement in American futures.

OPEC and OPEC+

Saudi Arabia is the dominant member of the Organization of the Petroleum Exporting Countries, founded in 1960, and since 2016 of the wider OPEC+ arrangement including Russia and other producers.

Aramco does not set policy. Production targets are decided by the kingdom's leadership in the context of OPEC+ negotiations, and Aramco implements them, adjusting output across its fields and setting official selling prices for each grade in each region monthly. Those prices, published by the company, are among the most watched numbers in the commodity market because they indicate the kingdom's assessment of demand.

This arrangement is the reason Aramco's shareholders have limited influence: the company's most consequential commercial variable, how much it produces, is determined by the state.

Price sensitivity

The kingdom's fiscal position depends on the oil price to an extent that has narrowed but not disappeared under Vision 2030. Estimates of the price required to balance the budget have generally exceeded US$80 a barrel and have risen with the spending commitments of the diversification programme, which is a higher figure than Aramco requires to be profitable by a very large margin and which is the reason Saudi production policy has favoured price over volume for most of the past decade.

Vision 2030 and the Saudi economy

Aramco's role in the kingdom's economic strategy is more central than any single company's role in a national economy elsewhere.

Vision 2030, announced in April 2016 by Crown Prince Mohammed bin Salman, commits the kingdom to reducing its dependence on oil revenue, developing tourism, entertainment, mining, logistics and manufacturing, increasing female labour force participation, and building new cities including NEOM on the Red Sea coast.

The programme is funded principally by Aramco. The listing transferred capital to the Public Investment Fund; the SABIC transaction of 2020 transferred approximately US$69 billion from Aramco to the fund; the dividend flows substantially to the state and the fund; and the transfer of a 4 per cent stake in Aramco to the fund in 2022 and a further 8 per cent in 2023, together worth several hundred billion dollars, moved the ownership of the company itself into the diversification vehicle.

The circularity is deliberate and is also the programme's principal vulnerability. Diversification away from oil is being financed by oil, and the pace at which it can proceed depends on the price of the commodity it is intended to replace. The reductions in Saudi spending announced when prices fell, and the reported scaling back of elements of NEOM, are consequences of that dependence.

The company's own role extends into the programme directly. Aramco has been required to increase local content, through the In-Kingdom Total Value Add programme which obliges it to source a rising proportion of goods and services domestically, and has invested in domestic manufacturing, shipyards, and the King Salman Energy Park, a large industrial zone near Dhahran.

Principal assets

Ghawar is approximately 280 kilometres by 30, discovered in 1948, and has produced more oil than any field in history. Its output was disclosed as approximately 3.8 million barrels a day in 2019.

Safaniya, discovered in 1951 in the Persian Gulf, is the largest offshore field in the world, producing heavy crude.

Khurais was redeveloped at a cost of approximately US$10 billion and brought to 1.2 million barrels a day in 2009.

Shaybah, in the Empty Quarter near the border with the United Arab Emirates, was developed in one of the most inhospitable environments on earth and produces light crude.

Manifa, an offshore heavy oil field developed using artificial islands and causeways rather than platforms, a technique chosen for cost and for maintenance access, reached full production in 2014.

Zuluf, Berri, Marjan and Abqaiq complete the principal producing assets, with expansions at Marjan, Berri, Dammam and Zuluf under way.

Abqaiq is not a field but the processing plant where much of Saudi crude is stabilised by removing hydrogen sulphide before export, which is why the 2019 attack on it was so consequential: the oil in the ground was unaffected and could not be shipped.

Jafurah is the gas development, the largest unconventional gas project outside North America, with production beginning in 2025.

Ras Tanura is the principal export terminal and one of the largest oil ports in the world, with associated refining.

Environment and safety

Aramco's operational emissions intensity, the greenhouse gases released per barrel produced, is among the lowest in the industry at approximately 10 kilograms of carbon dioxide equivalent per barrel of oil equivalent, against a global average several times higher. The reasons are that the oil flows under natural pressure requiring little energy to lift, that the fields are onshore and concentrated, and that the company has minimised routine flaring of associated gas, an achievement that is genuine and that many producers have not matched.

The company operates a carbon capture and storage demonstration at Uthmaniyah, injecting carbon dioxide for enhanced oil recovery, and has announced larger projects at Jubail. It has invested in direct air capture research and in hydrogen, shipping the first cargo of blue ammonia to Japan in 2020.

Water is a substantial issue. Saudi Arabia has essentially no fresh surface water, and Aramco's water injection for reservoir pressure maintenance uses treated seawater carried by the Qurayyah facility, among the largest seawater treatment plants in the world.

Safety performance is reported as strong by industry measures, and the company's response to the 2019 attack, restoring the world's largest processing facility within weeks, is the most visible demonstration of its operational capability.

Timeline

1933 The concession is signed on 29 May with Standard Oil of California.
1938 Dammam No. 7 strikes oil in commercial quantity on 3 March.
1944 The company is renamed the Arabian American Oil Company.
1948 Ghawar is discovered; Standard Oil of New Jersey and Socony-Vacuum join.
1950 The Trans-Arabian Pipeline opens; the fifty-fifty profit-sharing agreement is signed in December.
1951 Safaniya is discovered.
1960 OPEC is founded.
1973 The oil embargo quadruples prices; the kingdom takes a 25 per cent interest.
1980 Saudi ownership reaches 100 per cent.
1984 Ali Al-Naimi becomes the first Saudi president.
1988 The Saudi Arabian Oil Company is established by royal decree in November.
2005 The Petro Rabigh joint venture with Sumitomo begins.
2016 Vision 2030 is announced and the listing is proposed.
2019 Abqaiq and Khurais are attacked on 14 September, removing about five per cent of global supply; the shares list on 11 December, raising approximately US$25.6 billion.
2020 A brief price war with Russia coincides with the pandemic; 70 per cent of SABIC is acquired for approximately US$69 billion.
2022 Net income exceeds US$160 billion, the largest reported by any company; a 4 per cent stake is transferred to the Public Investment Fund.
2023 A further 8 per cent is transferred to the fund; the Esmax acquisition in Chile is agreed.
2024 The government cancels the expansion to 13 million barrels a day of capacity in January.
2025 Jafurah gas production begins; 49 per cent of the Jafurah processing facilities is sold to a BlackRock-led consortium for US$11 billion in August.
2026 A 20-year American liquefied natural gas agreement is signed; the first share buyback is authorised in March; Houthi attacks on Jizan and Yanbu are claimed in July.

Criticism

Climate

Aramco is, by the most cited analysis, the single largest corporate source of greenhouse gas emissions in history. The Carbon Majors research attributes approximately four per cent of all industrial carbon dioxide and methane emitted since 1965 to the company's products, a larger share than any other entity.

The company's position is that it supplies energy the world demands, that its own operational emissions per barrel are among the lowest in the industry, which is true and is a consequence of the geology and of low flaring, and that it invests in carbon capture, hydrogen and efficiency.

Critics observe that operational emissions are a very small fraction of the total, that the overwhelming majority arise when the product is burned, and that the company has increased rather than reduced its planned production. The company's net zero commitment covers its own operations by 2050 and excludes the emissions from the use of its products, which is the difference that matters.

The cancellation of the capacity expansion to 13 million barrels a day in January 2024 was read by some analysts as an acknowledgement of demand uncertainty and by the company as a reallocation of capital to gas and chemicals.

Governance and the state

Aramco's minority shareholders hold approximately 1.5 per cent of a company whose production levels are determined by government policy, whose dividend is set with the state budget in view, and whose chairman runs the sovereign wealth fund. The company discloses that production may be directed by the government and that this may not be in the commercial interest of shareholders.

This is an unusual arrangement for a listed company and was among the reasons international exchanges were not used for the listing.

Human rights and political context

The company operates within a state whose human rights record, including the treatment of women, of dissidents, of migrant workers and the killing of the journalist Jamal Khashoggi in 2018, has been extensively criticised, and international investors applying environmental, social and governance criteria have generally treated the company as excluded on those grounds as well as on climate.

Aramco has also been affected by regional conflict beyond the 2019 attack, with repeated Houthi claims of operations against its facilities, including those of July 2026, and with the 2022 attack on a storage facility at Jeddah during the Formula One race weekend.

The Aramco community

Aramco's residential compounds are among the more unusual institutions created by an oil company, and they explain a great deal about the character of the organisation.

The Dhahran camp was built from the 1930s by the American companies for their employees, laid out as an American suburb with detached houses, lawns, a golf course, a cinema, a commissary and a baseball diamond, in a country whose social rules differed from those of the residents. The compounds operated under exemptions, and the differences, in dress, in the mixing of men and women, and in what was permitted, were both a practical necessity for recruiting Western staff and a source of friction.

After nationalisation the population became predominantly Saudi, and the compounds continued, now housing the technical class the company had trained. The schools within them, the sponsorship of employees' children at foreign universities and the expectation of return produced a distinct professional stratum in the kingdom: educated abroad, technically trained, and loyal to a company rather than to a ministry.

The consequence is that Aramco has functioned for eighty years as the kingdom's principal engine of technical education and social change, and its internal culture, meritocratic by regional standards and unusually insulated from patronage, is frequently cited as the reason it has been so much better run than other state institutions.

International ventures

Aramco's international strategy has been to secure demand by owning refining and distribution in the markets it sells to, an approach described in the industry as locking in the barrel.

United States. Motiva Enterprises, held jointly with Shell and Texaco from 1998 and wholly owned since 2017, operates the Port Arthur refinery in Texas, the largest in the United States at more than 600,000 barrels a day, together with distribution and the Shell brand licence in much of the south and east.

South Korea. S-Oil, in which Aramco holds a majority, operates one of the largest refining and petrochemical complexes in Asia at Ulsan, and the Shaheen project, a US$7 billion crude-to-chemicals development, is among Aramco's largest international investments.

China. Aramco holds interests in the Fujian refining and petrochemical venture with Sinopec and ExxonMobil, in Rongsheng Petrochemical through a stake acquired in 2023, and in the Huajin and Gulei projects, and has signed a series of long-term supply agreements. China is its largest customer and the relationship has deepened as European demand has weakened.

Japan. A substantial holding in Idemitsu Kosan and a long-standing storage arrangement.

India. Long-discussed investments, including a proposed stake in Reliance's refining and chemicals business that was not completed, and a joint venture at Ratnagiri that has been delayed by land acquisition disputes.

Europe. A stake in the Gdańsk refinery in Poland acquired from PKN Orlen in 2022, and supply arrangements that expanded after European buyers reduced purchases of Russian crude.

Pakistan, Chile and elsewhere. Retail and distribution positions including Gas and Oil Pakistan, acquired in 2023, and Esmax in Chile.

The company also operates a very large shipping arrangement through Bahri, the Saudi national carrier, and has invested in domestic shipbuilding at the International Maritime Industries yard at Ras Al-Khair, a joint venture intended to build tankers and offshore rigs domestically.

Aramco Ventures and diversification

Aramco Ventures, the company's corporate venture arm, invests in energy technology, digital and industrial startups, with funds including Prosperity7, named for the Dammam No. 7 well, and Wa'ed for Saudi ventures.

The company has also invested in areas adjacent to its business, including a stake in the Chinese electric vehicle maker Hongqi's supplier ecosystem, in Lucid Motors through the Public Investment Fund's holdings rather than directly, in hydrogen ventures, in carbon capture technology companies and in artificial intelligence. It announced in 2024 the development of a large Arabic language model and a set of industrial applications of machine learning to reservoir modelling, seismic interpretation and predictive maintenance.

Its digital transformation programme has been substantial: the company operates one of the largest supercomputing installations in the Middle East for seismic processing, and its Fourth Industrial Revolution centres at several facilities have been recognised by the World Economic Forum.

Reception

Assessments of Aramco separate almost entirely along the question of what one thinks the oil industry should be doing.

Within the petroleum industry the company is regarded with a respect approaching deference. Its reservoir engineering, its field development and its operational discipline are studied, its technical papers are read, and the recovery from the 2019 attack confirmed a reputation for competence that had been assumed rather than demonstrated.

Among financial analysts the company is an unusual object: extraordinarily profitable, extraordinarily cheap to run, and almost entirely outside the influence of the shareholders who own its listed shares. The valuation has generally reflected a discount for that governance and for the geopolitical risk, and the shares have traded below the listing-day peak for most of the period since.

Among climate organisations it is the single most criticised company in the world, on the straightforward basis that it produces more of the commodity whose combustion causes the problem than any other entity and intends to continue.

Among Saudis the company occupies a position closer to that of a national institution than of a business, comparable to the role a state oil company plays in Norway or Malaysia but on a larger scale and with a longer history of being the country's most effective organisation.

The honest summary is that Aramco does what it does better than anyone has ever done it, and that the question of whether it should continue doing it is not one the company can answer, since the decision rests with the government that owns it and with the customers who buy from it.

Assessment

Saudi Aramco is the most profitable enterprise in the history of commerce, and the reason is geological rather than managerial: the kingdom sits on the largest and cheapest conventional oil in the world, and a company extracting it will earn very large sums whoever runs it.

That said, it has been run well. The nationalisation preserved the technical organisation where comparable processes elsewhere destroyed it. The reservoir management of Ghawar over seventy years is regarded within the industry as exemplary. The restoration of Abqaiq within weeks of its destruction in 2019 was an operational achievement of a high order. And the company has been, consistently, the most competent institution in its country.

Its strategic position is simultaneously unassailable and terminal. No competitor can produce oil at its cost, and the product is one that every government has formally committed to reducing the use of. The response, integration into chemicals, expansion into gas, investment in hydrogen and the diversification of the national economy funded by the company's own dividend, is the only response available, and its success depends on decisions taken outside the company.

The listing changed less than it appeared to. A 1.5 per cent float subject to state direction of production does not make a company answerable to shareholders, and the principal effect has been transparency: for the first time, the world can see the reserves, the costs and the production of the fields on which a substantial part of the world economy depends.