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Saudi Aramco is the world's biggest oil company, pumping crude oil out of the Saudi desert and selling it to the world.
Saudi Aramco is the world's biggest oil company. It sits on top of something almost hard to imagine: the largest proven oil reserves of any company on Earth, buried under the Saudi desert and nearby waters. It pumps that crude out, cleans it up, and sells it by the tanker-load to refineries, traders, and governments around the world. If you've ever wondered who fills the global economy's gas tank, a huge part of the answer is this one company.
The business is simple at its core. Aramco earns money by pulling oil out of the ground for a low cost — its reserves are so large and easy to reach that producing a barrel costs it far less than it costs most rivals — and then selling that oil at whatever price the world market sets. Because its costs are so low, it can stay profitable even when prices fall, which is a big part of why it's one of the most profitable companies on the planet. It also runs massive refineries and chemical plants that turn some of its oil into fuels and plastics, but crude oil is still the beating heart. The Saudi government owns the vast majority of the company, so it is effectively the country's crown jewel and its main source of income. The story of how it got here is worth knowing. In the 1930s, American oilmen struck a deal with the Saudi king and found oil in the desert. For decades the company, then called Aramco, was run largely by American partners like Exxon and Chevron. By 1980 the Saudi government had bought the whole thing, and today it is fully Saudi-owned except for the slice sold to outside investors when the company listed on the Saudi stock exchange in 2019 — the biggest stock market debut in history at the time. That listing raised tens of billions of dollars and turned Aramco into a public company overnight. What makes Aramco strong is also what makes it vulnerable. It produces enormous amounts of oil cheaply, which gives it a powerful edge, and it pays out giant dividends that the Saudi state relies on to fund its budget. But its fortunes swing with the price of oil, and those prices are set by forces far outside its control — global demand, OPEC+ production decisions it helps steer, and the slow global shift toward cleaner energy. In recent years it has pushed into natural gas and chemicals to prepare for a world that eventually burns less oil, while still cashing in on the oil the world still needs today.
Saudi Arabia handed an American oil company, SOCAL, the right to search for oil, and for years the drilling came up dry. Just as the effort looked hopeless, the company's chief geologist, Max Steineke, told them to keep going. In 1938 a well called Dammam No. 7 finally struck commercial oil, and that single hole in the ground turned the Kingdom into a player on the world oil stage and launched the company that became Aramco. The whole thing had hinged on one stubborn geologist refusing to quit.
The company got a new name: the Arabian American Oil Company. Say it fast and you hear where the short name Aramco comes from. It stuck for decades, until a royal order in 1988 gave the company its current name.
Moving oil from Saudi Arabia to Europe by sea meant a long, costly trip, so the company built the Trans-Arabian Pipeline — over a thousand kilometers of pipe linking eastern Saudi Arabia to the Mediterranean, the longest pipeline in the world at the time. It cut both the time and the cost of getting oil to European buyers.
The Saudi government kept buying more of Aramco until, by 1980, it owned the whole company — the country's oil was now fully the country's. In 1988 a new company, the Saudi Arabian Oil Company, or Saudi Aramco, was officially set up to take over everything Aramco did.
Pumping oil out of the ground was only part of the business, so Saudi Aramco pushed into refining and selling fuel too, becoming an integrated petroleum company. Its joint venture with Texaco in the US grew into Motiva, and by 2017 Aramco owned all of North America's largest single-site refinery at Port Arthur, Texas. The company was no longer just selling crude oil; it was making and selling the finished products.
In December 2019 Saudi Aramco sold shares on the Saudi stock exchange in what became the world's largest IPO, raising about $25.6 billion. The stock jumped 10% on its first day, briefly valuing the company at $2 trillion and making it the most valuable listed company on earth. But look closer: only about 1.5% of the company changed hands, and the buyers were mostly Gulf investors, with little foreign money — a giant listing, but a very carefully controlled one.
Saudi Aramco paid about $69 billion for a 70% stake in SABIC, the big Saudi chemicals company. That pumped up its chemicals business and moved it closer to being an all-around energy and chemicals company, not just an oil supplier.
Aramco made its first international move into liquefied natural gas by taking a stake in MidOcean Energy, and it broke ground on two big refinery-and-chemicals complexes in Asia. It also started building projects that turn liquids into chemicals, pushing its downstream growth well beyond Saudi Arabia.
Aramco bought a 49% stake in the AI company HUMAIN, putting in about $2.6 billion in cash and moving its AI assets into the new business, while the PIF kept the other 51%. The deal is meant to help HUMAIN build huge AI data centers by 2030, and it lets Aramco turn that AI into tools for its own operations. An oil company was now betting on becoming a technology powerhouse too.
It is, in short, a company that turns geology into money — and an entire country's fortunes ride along with it.
Saved answer · last researched 1 Nov 2026