Structural Challenges to the Petrodollar System: Energy Geopolitics, Gold as a Settlement Substitute, and US Fiscal Sustainability

Introduction

Since the collapse of Bretton Woods, the dollar has held its place as the world's core reserve currency by binding itself tightly to the oil trade, the arrangement known as the petrodollar system. Geopolitical events since 2022, however, are posing a systemic challenge to a structure that has run for half a century.

The question here is not whether the dollar will be "replaced" in the near term. That linear narrative is too simple. The real issue is that the three pillars the petrodollar system rests on are all under strain at once. First, the settlement currencies of global energy trade are diversifying structurally. Second, gold, the obvious alternative anchor, faces a severe capacity mismatch. Third, the balance of US federal revenue and spending, along with the stability of its financial system, is eroding the foundation of dollar credit from the inside.

Understanding how these three threads intersect matters for anyone assessing global macro risk allocation.

1. A Non-Dollar Energy Settlement Loop Takes Shape: The Division of Roles Between Iran, Russia and China

An energy trade settlement system that functionally bypasses the dollar is already in early operation. It does not confront the dollar head on. It builds an independent trading loop and simply leaves the dollar out of specific trade flows.

1.1 Strategic Leverage at Hormuz and an Asymmetric Cost Structure

Iran controls the Strait of Hormuz, through which roughly 20% of global oil supply must pass. As described in an earlier report, after the conflict broke out in early 2026 the daily flow of about 16 million barrels of crude and petroleum products was cut off, down roughly 80% from the 2025 average.

Seen through the lens of military economics, Iran's strategy does not rely on military victory in the conventional sense. Its core is the cost structure of asymmetric warfare: the attacking side uses drones and cruise missiles costing a few thousand dollars each, forcing the defending side to expend interceptors costing roughly $4 to $4.5 million apiece (a Patriot PAC-3 runs about $4M, an SM-6 about $4.5M). The ratio of marginal costs between offense and defense is somewhere between 1:100 and 1:200, an asymmetry that makes guaranteeing safe passage through the strait economically unsustainable.

1.2 Russia: Using Energy Supply to Shift the Settlement Currency

With Middle East supply disrupted by geopolitical tension, Russia has stepped in as an alternative supplier and attached non-dollar settlement conditions to its energy exports to Asia and to some Western countries.

Since the West froze roughly $300 billion of Russian central bank reserves in February 2022, Moscow has systematically pushed de-dollarization through its energy trade. According to figures from the Russian central bank and its trading partners, the share of RMB settlement in Russian crude exports to China rose from under 5% in 2022 to over 40% in 2025. In India, purchases of Russian oil settled in rupees and UAE dirhams accounted for the large majority of its Russian oil imports in 2024 (reportedly over 90%), with the dollar share shrinking sharply. Taken together, the combined dollar and euro share of Russian export settlement fell from about 86% in 2021 to under 18% in 2024-2025, with the dollar alone dropping from about 48% to under 15%.

1.3 China: RMB Settlement Infrastructure and the Gold Conversion Layer

China supplies the settlement medium in this loop. Because the RMB is not yet a fully convertible currency, the system runs along a four-step closed path:

Chart: how the energy-gold-RMB settlement loop bypasses the dollar. GCC oil exporters buy physical gold with dollars (through Swiss refining centers), the gold moves to the Shanghai Gold Exchange (SGE) and is exchanged for RMB, the RMB buys Chinese goods, and those goods flow back to the Middle East to close the loop. The dollar is excluded from the entire cycle. Sources: author's analysis based on Swiss-Impex trade data, SGE public information, and PBOC cross-border RMB settlement reports.

The mechanism works like this: after Russian reserves were frozen in 2022, members of the Gulf Cooperation Council (GCC) began converting part of their oil revenue into physical gold (via offshore refining centers such as Switzerland), which then enters the RMB-denominated trading system through the Shanghai Gold Exchange (SGE) and the Shanghai International Energy Exchange (INE).

The evidence: a structural jump in Swiss gold exports to the GCC

This path is not purely theoretical. Trade data from the Swiss Federal Customs Administration (Eidgenössische Zollverwaltung) provides quantifiable support.

Chart: Swiss gold exports to Saudi Arabia and the UAE (2015-2025), in tonnes. Volumes jumped structurally after Russian reserves were frozen in 2022. Source: Swiss Federal Customs Administration, Swiss-Impex Database.

Public reporting shows Swiss gold exports to the Gulf grew markedly after 2022. In the first nine months of 2025 alone, Switzerland imported 316 tonnes of gold from the UAE (Swissaid data), which reflects a sharp expansion of two-way gold flows between Switzerland and the Gulf. The starting point of that growth lines up closely with the outbreak of the Russia-Ukraine war and the imposition of Western financial sanctions on Russia. As the world's largest gold refining and re-export hub (roughly 70% of the world's gold is refined in Switzerland), Swiss export data is one of the key indicators for tracking where gold is going.

The pattern suggests GCC states are systematically allocating part of their oil revenue into physical gold. This has moved beyond rhetorical "de-dollarization" talk and left a traceable mark in physical trade data.

2. The Oil-Gold Capacity Mismatch: The Arithmetic Limit on Switching Settlement Systems

If the non-dollar settlement loop above keeps expanding, the global gold market will run into a hard capacity constraint.

Chart: annual global oil production value versus the market value of annual gold output (2025), in trillions of dollars. The oil market is about 6.5 times the annual value of gold production. Sources: EIA STEO, World Gold Council, LBMA, BP Statistical Review of World Energy 2025.

The annual trading volume of the oil market is roughly 6.5 times the annual value of gold production. In a scenario where 10% of oil trade is settled through a gold conversion layer, about $260 billion of new demand would pour into a gold market worth about $397 billion a year, taking up roughly 65% of annual output. At that ratio, the existing gold market does not have enough supply elasticity to absorb the increment at stable prices.

The 10% assumption is not extreme. China and India together import roughly 30% of the world's crude (EIA data puts the actual figure at 32-36%), and RMB settlement already accounts for over 40% of China-Russia trade. Saudi Arabia signed a currency swap agreement worth about $7 billion with the People's Bank of China in 2023 and has publicly signaled openness to non-dollar settlement, though large-scale RMB-denominated crude trading has yet to make real progress. If the trend continues, gold's role as the middle layer in an oil-to-RMB settlement chain will keep strengthening, and its price repricing rests on solid supply and demand logic.

3. Liquidity Mismatch in US Private Credit and How the Risk Transmits

While the external petrodollar cycle is eroding, fragility inside the US financial system is deepening too.

An earlier report laid out the structural risks in the US private credit market in detail. Here the focus is on the knock-on effects where those risks meet the current macro environment.

The US private credit market, dominated by Blackstone, Apollo and Blue Owl, has reached roughly $3.5 trillion on the AIMA measure (invested capital plus uncalled commitments). Its central problem is a liquidity maturity mismatch: the liability side (investor money) expects to be able to redeem, while the asset side (private debt) is typically locked up for 5 to 7 years.

3.1 Redemption Pressure and the Liquidity Trap

The Federal Reserve has cut rates by about 175 basis points since September 2024, to a 3.50%-3.75% range, but rates remain far above the zero-rate environment of 2020-2021. Debt service for floating-rate borrowers is still heavy, and investors are increasingly inclined to redeem. The underlying assets, however, are mostly illiquid private debt and leveraged buyout (LBO) loans that cannot be turned into cash quickly.

In the first quarter of 2026, several flagship private credit funds triggered redemption gates, suspending or sharply limiting investor withdrawals. Blackstone's BREIT property trust hit its redemption cap repeatedly over the past 12 months, and Apollo's MidCap Financial Investment Corp (MFIC) marked down its net asset value by about 3.3% in the fourth quarter of 2025. Share prices of the major listed private credit firms pulled back far more than expected in early 2026. Fortune reported drawdowns of roughly -31% for Ares, -27% for Blackstone, -26% for Apollo and -50% for Blue Owl.

3.2 Transmission into the Traditional Banking System

Private credit funds do not operate in isolation. Their leverage comes mainly from traditional commercial banks: JPMorgan, Goldman Sachs and Citi provide financing leverage through warehouse lines and syndicated loan participation. By the end of 2025, non-accrual loans in private credit portfolios had risen from about 2% in 2022 to about 5.8%. As default rates climb further, banks' off-balance-sheet exposures will face pressure to come back on balance sheet, eating into their capital adequacy.

Fragility in the domestic credit system and the weakening of the external petrodollar cycle are therefore compounding each other.

4. The Structural Divergence Between Equities and the Labor Market

US equities are diverging sharply from labor market indicators, and the phenomenon deserves examination from a macro equilibrium standpoint.

Over the past 25 years, the S&P 500 and JOLTS job openings have been highly correlated: earnings expansion normally comes with more hiring, and vice versa. Since 2024, that relationship has broken structurally.

Chart: the S&P 500 index against US JOLTS job openings (2019-2026), dual axis. The two lines diverged sharply from 2024 onward. Job openings kept contracting to about 6.89 million (down roughly 42% from the 2022 peak) while equities kept rising on AI expectations. Sources: S&P Global, U.S. Bureau of Labor Statistics (JOLTS), FRED.

JOLTS job openings fell from a peak of about 11.9 million in March 2022 to about 6.89 million in February 2026, a decline of roughly 42%, and net private sector job growth is close to zero. Over the same period the S&P 500 rose from about 4,500 to nearly 6,000, a gain of more than 30%.

The assumption embedded in market pricing is that AI-driven productivity gains can sustain or even expand corporate profits while demand for labor contracts. That assumption contains an internal contradiction: stagnant income growth on the consumer side will eventually show up as a cyclical decline in corporate revenue.

Credit Spreads as an Early Warning

The credit market has already started to price this contradiction in.

Chart: ICE BofA high yield credit spreads against the S&P 500 (2000-2026), dual axis (spread axis inverted). Historically, every combination of widening spreads and elevated equities has preceded a major correction. After spreads narrowed to a historic low of about 260bps at the end of 2024, they widened to about 346bps in early 2026. Sources: ICE BofA US High Yield Index (BAMLH0A0HYM2), S&P Global, FRED.

ICE BofA high yield spreads widened in early 2026 from a historic low of about 260 basis points at the end of 2024 to about 346 basis points, while the S&P 500 stayed near record highs. Looking back over the past 20 years, this combination of widening credit spreads and elevated equities has appeared three times:

1. 2000 (before the dot-com bust): spreads widened about 6 months before the Nasdaq fell
2. 2007 (before the global financial crisis): spreads widened about 4 months before the S&P 500 fell
3. 2020 (the COVID shock): spreads spiked violently and the S&P 500 corrected sharply within weeks

In all three cases the credit market registered deteriorating fundamentals before equities did. The current divergence is a fourth signal worth watching.

5. Federal Fiscal Imbalance and the Monetary Policy Bind

The external shocks and market distortions above all converge on the federal government's books. This is the variable no assessment of the dollar's credit foundation can avoid.

5.1 The February 2026 Federal Budget Numbers

According to the US Treasury's Monthly Treasury Statement, federal revenue and spending in February 2026 broke down as follows:

Chart: the structure of US federal revenue and spending in February 2026. Tax receipts for the month were $313 billion, spending $621 billion, and the deficit $308 billion. Social Security, Medicare, health and net interest alone came to $477 billion in mandatory spending, already 152% of the month's entire tax take. Source: U.S. Department of the Treasury, Monthly Treasury Statement, February 2026.

One figure deserves particular attention: Social Security ($138B) plus Medicare ($75B) plus health ($81B) plus net interest ($79B) comes to $477B of mandatory spending, already 152% of the month's total tax receipts of $313B. In other words, before a dollar goes to defense, education, infrastructure or any discretionary purpose, mandatory obligations have consumed all tax revenue and left a $164B hole.

5.2 The Long-Term Deterioration

That single month reflects a long-term trend that keeps getting worse.

Chart: US federal mandatory spending (Social Security + Medicare + other mandatory + net interest) as a share of tax receipts (FY2015-FY2026E). The ratio climbed from 68% in FY2015 to a projected 92.3% in FY2026. Sources: U.S. Treasury, CBO Budget Outlook FY2026, FRED.

On a fiscal year basis, mandatory spending including net interest has risen from about 68% of federal tax receipts in FY2015 to a projected 92.3% in FY2026, approaching the critical 100% line, the point at which tax revenue is entirely swallowed by mandatory spending and the government has no discretionary fiscal capacity left. Net interest is the fastest-growing single line item, up from about 6% of receipts in FY2015 to over 15% in FY2026.

5.3 External Transmission: Energy Shocks and a Treasury Selloff Feedback Loop

European and British investors hold about 40% of foreign-held Treasuries (roughly $3.2 trillion). When a Middle East oil crisis drives European energy costs sharply higher (as the earlier report described, Dutch TTF day-ahead gas prices rose 67% in two weeks), those investors may be forced to sell Treasuries for cash to cope with inflation pressure in their own currency zone.

That passive selling pushes Treasury yields up and raises US funding costs. Every 100 basis point rise in the 10-year yield adds roughly $260 to $300 billion to annualized federal interest expense, creating a feedback loop: yields rise → interest expense grows → the deficit widens → funding needs increase → yields rise further.

5.4 Three Macro Scenarios

Pulling the analysis together, the paths forward fall into three scenarios:

Scenario one: the conflict subsides and the petrodollar system is partially repaired

The Middle East conflict is eased through diplomacy, the Strait of Hormuz reopens, pressure on the energy supply chain is released, and the Fed gets room to cut. Note, though, that the gold reserves and RMB settlement infrastructure the GCC states have already built will not be unwound because tensions ease. The structural de-dollarization trend would continue, just more slowly.

Scenario two: a credit contraction triggers systemic deleveraging

High energy costs set off a wave of corporate defaults, the liquidity crisis in private credit funds transmits to commercial banks, and surging Treasury yields cause credit to contract across the board. This path resembles the transmission chain of the 2008 global financial crisis, followed by a long period of balance sheet repair.

Scenario three: monetized financing and yield curve control (YCC)

To keep the Treasury market from breaking down and the federal funding chain from snapping, the Fed may be forced into asset purchases and yield curve control in a high inflation environment. That choice could stabilize the bond market in the short run, but injecting liquidity while energy supply is constrained would worsen inflation pressure in the real economy. Rising food, rent and basic living costs would spread from assets to consumption, producing stagflation.

6. Conclusions and Asset Allocation Implications

The framework here points to one central judgment: the petrodollar system is moving from a single point of failure to a state of multiple compounding pressures. Externally, a working non-dollar energy settlement loop and gold's strengthening role as a settlement middle layer are eroding the dollar's pricing monopoly in global trade. Internally, the liquidity mismatch in private credit and the federal fiscal imbalance are weakening the domestic fundamentals that support dollar credit.

Whichever path things take, the following trends are forming:

First, the dollar's share of global reserves will keep declining. The dollar remains the dominant reserve currency in the near term (about 58% of global foreign exchange reserves, well down from 72% in 2001), but the infrastructure for a multipolar settlement network is being institutionalized.

Second, the inflation baseline may shift structurally higher. The fading dividend of globalization, the regionalization of supply chains, long-term increases in energy costs and a shrinking labor supply all point to a higher inflation range.

Third, real assets are gaining weight in global reserve allocation. Gold, energy and commodities do not depend on any single sovereign's credit, and their share in central bank reserves and institutional portfolios keeps rising. World Gold Council data shows central banks bought a net 1,000-plus tonnes of gold a year on average from 2023 to 2025, double the 2015-2021 average.

Against this backdrop, asset classes that depend heavily on credit expansion and the dollar cycle (long duration bonds, highly leveraged growth stocks) face growing risk exposure, while assets anchored to something physical are gaining structural repricing momentum.

Disclaimer: This piece is research discussion based on public data and a macro analytical framework. It is not investment advice. Investing involves risk, and readers should judge for themselves based on their own circumstances and consult a professional adviser. Data sources cited include, but are not limited to, the U.S. Treasury, the U.S. Energy Information Administration (EIA), the World Gold Council, the Swiss Federal Customs Administration, the U.S. Bureau of Labor Statistics (BLS), ICE BofA indices and the FRED database.