📰 In-Depth Global Economy Analysis

The Collapse of the Gold Standard, the Petrodollar, and Iran’s Long Shadow 💵
Why the United States Is So Sensitive About Hormuz and the Dollar-Based Energy Order

Dollar dominance is not maintained simply because “the United States is powerful.”

After the collapse of the gold standard, oil pricing, U.S. Treasuries, and Middle East security became deeply connected, shaping the monetary order that still influences the world today.

Several keywords repeatedly appear whenever people try to understand today’s geopolitical tensions: the dollar, oil, Iran, and the Strait of Hormuz. At first glance, these may seem like separate issues. In reality, however, they are closely linked through the international monetary system and the security architecture that emerged after World War II.

Especially when tensions around the Strait of Hormuz rise, the question is no longer limited to “Will oil prices go up?” It also becomes a much larger question: could the global energy system built around dollar settlement be shaken? To understand that, it is necessary to begin with the collapse of the gold-based monetary order.

1. Why Did So Much of the World’s Gold Flow to the United States? 🏦

During and after World War II, the United States was seen as a relatively secure country with an intact industrial base and a protected mainland. As war devastated much of Europe, several countries moved gold abroad for safekeeping, and the United States became the central location for global gold reserves.

Under the Bretton Woods system, the United States stood at the center because it committed to convert dollars into gold at $35 per ounce, while other currencies were pegged to the dollar. In the postwar period, the United States held far more than half of the world’s official gold reserves, and estimates for the late 1940s often place its share near 70%.

💡 Put Simply

As countries moved gold to the United States during wartime, America gained the credibility to say that “the dollar is, in effect, as good as gold.”

2. So Why Did the Gold Standard Eventually Break Down? 📉

The central weakness of the system was clear: gold was limited, but demand for dollars kept growing. As the global economy expanded, the world needed more liquidity. But if gold holdings could not keep pace with the rise in dollar demand, the system was bound to become unstable.

In the 1960s, the United States sent large amounts of dollars abroad through overseas aid, military spending, foreign investment, and the growing costs of the Vietnam War. The problem was that the number of dollars circulating outside the United States increasingly exceeded the amount of gold the country actually held.

In that environment, countries such as France began asking a difficult question: could those dollars really still be converted into gold as promised? As some governments tried to exchange dollars for gold, it became harder for the United States to sustain the Bretton Woods framework.

3. What Changed With the 1971 Nixon Shock? ⚠️

On August 15, 1971, President Richard Nixon announced that the United States would suspend the dollar’s convertibility into gold. This became known as the Nixon Shock.

With that decision, the United States no longer had to honor the commitment that “$35 can be exchanged for one ounce of gold.” The core link holding the Bretton Woods system together had effectively been broken.

After that, gold was once again priced by the market, and the dollar changed in character. It was no longer a currency anchored to gold, but a currency supported by U.S. creditworthiness, military power, deep financial markets, and the global payments system.

📘 The Core Shift

After the Nixon Shock, the dollar was no longer backed by gold. Instead, it became a currency sustained by the broader international order built around the United States.

4. Why Did Oil Become So Important After That? 🛢️

Once the link between gold and the dollar was severed, the United States needed another foundation to preserve global demand for dollars. One of the most strategically important assets in that new era was oil.

During the 1970s, the relationship between the United States and Saudi Arabia deepened through a combination of security cooperation and financial alignment. Saudi Arabia wanted security guarantees, while the United States wanted to preserve the dollar’s central position in global oil trade.

This evolving structure is commonly described as the petrodollar system. More precisely, it was not created overnight by a single secret agreement. Rather, from the mid-1970s onward, a durable pattern emerged in which oil was priced in dollars, and surplus petrodollars from exporting states were recycled into U.S. financial markets and U.S. Treasuries.

5. How Does the Petrodollar System Actually Work? 🔄

The structure is simpler than it first appears. Countries around the world need dollars to buy oil. Oil exporters earn dollars from energy sales, and a meaningful share of those dollars is then invested in U.S. Treasuries or other dollar-denominated assets.

That creates a circular flow. The United States can issue dollars, and many of those dollars eventually return to American financial markets. That is why the petrodollar system is viewed not merely as a pricing convention, but as a major financial and security structure supporting dollar hegemony.

There is also an important distinction to keep in mind. It is not accurate to say that SWIFT was directly created by the United States for oil-dollar settlement. SWIFT was founded in 1973 by 239 banks from 15 countries as an international financial messaging network. Over time, however, it became deeply intertwined with a dollar-centered global settlement system and gained enormous geopolitical importance.

🧠 An Important Distinction

The petrodollar system is not just the statement “oil is traded in dollars.” It is more accurately understood as a structure linking energy settlement, U.S. Treasury markets, and Middle East security.

6. Why Does Iran Keep Returning to the Center of This Structure? 🇮🇷

The roots of the Iran issue go much deeper than recent nuclear disputes or current regional conflicts. At its core lies a long history shaped by oil interests, foreign influence, and struggles over political sovereignty.

In the early twentieth century, Iranian oil was dominated by British capital. The Anglo-Persian Oil Company (APOC) controlled major oil assets in Iran, and that company later evolved into what is now known as BP.

Inside Iran, however, anger grew over the perception that the country’s oil wealth was being extracted for foreign benefit. In 1951, Prime Minister Mohammad Mossadegh moved to nationalize the oil industry.

That crisis culminated in the 1953 coup, in which the CIA and British intelligence played a role, leading to the restoration of power under Shah Mohammad Reza Pahlavi. This episode left behind a deep and lasting legacy of mistrust toward Western powers inside Iran.

Then, in 1979, the Iranian Revolution overthrew the pro-Western monarchy and brought the Islamic Republic into existence. Much of today’s U.S.-Iran confrontation continues to unfold in the shadow of that long historical arc.

7. Why Is Iran’s Relationship With Dollar Settlement So Sensitive? 💱

Iran has long been subject to U.S. sanctions, and as a result it has repeatedly been pushed out of, or forced to work around, the dollar-based payment system. For that reason, efforts by Iran to expand oil trade using euros, yuan, or local currencies carry not only commercial meaning, but political significance as well.

Of course, it would be too simplistic to explain every major geopolitical event through the petrodollar alone. Claims such as “the Iraq War happened because of euro settlement” or “the core cause of U.S.-China trade tensions was yuan oil futures” reduce highly complex events to a single factor. Still, it is clear that the United States has long treated the dollar-based energy settlement order as one of its major strategic interests.

That is why moves by Iran to widen non-dollar settlement channels, or to deepen energy cooperation with China outside the dollar system, tend to be viewed in Washington as developments with strategic implications rather than mere commercial adjustments.

8. Why Is the Strait of Hormuz So Decisively Important? 🌊

The Strait of Hormuz is one of the most critical transit routes for global crude oil and LNG shipments. When tensions there intensify, the consequences extend far beyond a regional security issue. Energy prices, shipping costs, insurance premiums, and global market confidence can all be affected at the same time.

Europe and Asia are both highly exposed to disruptions in this corridor, especially when supply delays from Gulf producers are combined with rerouted tankers, freight uncertainty, and higher maritime risk premiums. In such periods, even shifts in cargo direction between regions can quickly influence prices and market sentiment.

This is why the issue is often viewed not merely as a local conflict zone, but as a stress point within the global economic system. If Hormuz is disrupted, the shock is not limited to energy prices alone. It also affects the broader structure of energy trade in which dollar settlement remains central.

9. In the End, What Is the United States Trying to Protect? 🇺🇸

What the United States seeks to protect is not merely one regional ally or one shipping corridor. More fundamentally, it is trying to preserve an international order in which the dollar remains at the center of global energy trade, together with confidence in the sea lanes, payment systems, and Treasury market that support that order.

That helps explain why any move involving Iran, the Strait of Hormuz, or symbolic efforts to expand non-dollar settlement in energy trade can be treated in Washington as more than a regional challenge. They can be interpreted as potential pressure points on a much wider strategic structure.

Seen from a global perspective, the issue is not simply whether oil becomes more expensive for a period of time. It is whether disruptions in one narrow waterway can ripple outward into inflation, financial volatility, and questions about the resilience of the existing monetary and energy order.

10. In Summary 📝

After World War II, the United States became the center of global gold reserves and the anchor of the Bretton Woods system.
But as more dollars circulated abroad than could realistically be backed by gold, the system broke with the 1971 Nixon Shock.
After that, the dollar preserved its central role through oil pricing, U.S. Treasury markets, and the Middle East security structure.
Iran became a structurally contentious actor in this order through a long history shaped by oil, the 1953 coup, and the 1979 revolution.
The Strait of Hormuz and efforts to expand non-dollar settlement are sensitive because they touch key elements of the existing global energy and monetary system.
That is why tensions involving Iran are often viewed not merely as regional conflicts, but as issues with wider implications for the stability of the international order.

📌 Today’s Global Economy in One Sentence

After the Nixon Shock, the dollar came to rest not on gold, but on a broader structure involving oil, American financial markets, and security arrangements.
Iran and the Strait of Hormuz matter not only because of regional conflict, but because they sit near the fault lines of the petrodollar system.
The strong reactions of major powers are driven not only by concern over energy prices, but by the desire to protect the wider international order built around energy flows and monetary stability.

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Roots and Branches

The Collapse of the Gold Standard, the Petrodollar System, and the Strait of Hormuz: Why the Dollar Still Dominates Global Oil

The Collapse of the Gold Standard, the Petrodollar, and Iran’s Long Shadow 💵
Why the United States Is So Sensitive About Hormuz and the Dollar-Based Energy Order