The Petrodollar Degeneration

Empires have always rested upon strategic foundations. Rome depended upon its legions and roads; Britain upon naval supremacy and global trade. The American century rested upon something different: the extraordinary ability to persuade, encourage and, when necessary, compel much of the world to conduct commerce in the US dollar.
For more than half a century, the petrodollar system stood at the center of that arrangement. It strengthened American financial influence, reinforced military alliances and helped sustain the dollar as the world’s dominant reserve currency. Yet China is rising, BRICS is expanding, alternative payment mechanisms are emerging, and countries increasingly seek to reduce their dependence upon the dollar. The story of the petrodollar is therefore not merely about currency. It is about power.

From Gold to Oil
The modern dollar order emerged from Bretton Woods in 1944, when the dollar became the principal reserve currency while remaining convertible into gold. Mounting US expenditures and declining gold reserves eventually made that system unsustainable, and President Richard Nixon suspended dollar convertibility into gold in 1971.
The dollar survived but needed a new foundation. That emerged through the deepening US-Saudi relationship in the 1970s. Saudi oil continued to be priced principally in dollars, while substantial oil revenues were reinvested in US financial assets. As dollar pricing became embedded in international oil markets, importing countries needed dollars to buy energy and exporters recycled those dollars through Western financial markets. Oil had, in effect, become the new gold.
The petrodollar was therefore never merely an economic arrangement. It became an architecture of power linking energy, finance, diplomacy, military strategy, institutions and confidence. Economic power reinforced political influence; political influence supported military power; and military power sustained confidence in the dollar.
The euro once appeared the most credible challenger. Yet fragmented fiscal and capital-market structures prevented it from displacing the dollar, demonstrating that reserve-currency status depends upon far more than economic size.

Degeneration, Not Displacement
Viewed through the Orthogonal and Matrix paradigms, the petrodollar is an interconnected system rather than a monetary phenomenon operating in isolation. Like a Rubik’s Cube, movement on one face changes the configuration of others: sanctions alter trade, trade influences reserve holdings, reserves affect financial markets, and financial changes reshape geopolitical relationships.
Iran was among the countries challenging the dollar-centred order through alternatives involving gold, local currencies and bilateral arrangements. American sanctions intensified those efforts. China subsequently entered with far greater economic weight. As the world’s largest oil importer, it increasingly viewed dollar dependence as a strategic vulnerability, expanded international use of the yuan and established yuan-denominated oil contracts.
BRICS expansion added another dimension, although differences in political systems, strategic priorities and economic interests have constrained integration. More fundamentally, a genuine reserve-currency alternative requires deep, liquid and accessible financial markets capable of absorbing enormous central-bank reserves. China’s capital-account restrictions and the renminbi’s limited international liquidity continue to constrain its ability to perform that role on the dollar’s scale.
The transition should therefore not be exaggerated. The dollar’s share of global foreign-exchange reserves has fallen from roughly 70 per cent around the beginning of this century to about 57 per cent today, while the renminbi accounts for only about 2 per cent. What we are witnessing is degeneration of dollar dominance, not its imminent displacement.

Five Transitions
The evolution of the petrodollar can be understood through five transitions: from gold to dollar supremacy between 1944 and 1971; from gold to oil between 1971 and 1974; consolidation of American financial and geopolitical predominance from 1974 to 2008; emergence of resistance and de-dollarisation from 2008 to 2022; and the still-unfolding transition towards a more fragmented and multipolar international monetary system.
The fifth transition is qualitatively different from the earlier four because it is unfolding simultaneously across several dimensions. Drawing on the concepts of orthogonality and matrices from Mathematics and Physics, the Orthogonal and Matrix paradigms provide a useful lens for examining these interacting forces. De-dollarisation is no longer confined to currency settlement or reserve management; it increasingly intersects with sanctions avoidance, energy trading, regional security arrangements and strategic autonomy. Monetary change therefore cannot be understood independently of military and geopolitical change. The erosion of dominance in one sphere may not automatically cause erosion in another, but when several dimensions begin moving in the same direction, their cumulative effect can become systemically significant.
Recent events in the Middle East may be accelerating this fifth transition. Iran’s asymmetric deterrence strategies have challenged conventional assumptions about military superiority and strategic influence. Whether intentionally or not, the conflict strengthens incentives for countries to diversify trade arrangements, reserve holdings and payment systems. But another potentially significant transition may be occurring simultaneously: erosion of America’s long-standing geopolitical and security primacy in the Gulf.
The recently concluded Mecca Joint Defence Agreement among Saudi Arabia, Pakistan and Türkiye is particularly noteworthy. It brings together the Gulf’s leading oil producer, nuclear-armed Pakistan and Türkiye, which possesses NATO’s second-largest military, within a collective-defence framework. For decades, Gulf security rested overwhelmingly upon American military protection and strategic leadership. The emergence of a more autonomous regional security framework suggests that diversification occurring in trade, finance and reserve holdings may now be spreading into defence and geopolitics. The Iran war may therefore be accelerating not one transition but two: gradual degeneration of the petrodollar system and erosion of America’s near-monopoly as the region’s principal security guarantor. From a Matrix perspective, these are not separate developments. Monetary power, military power and geopolitical influence remain deeply interconnected.
The petrodollar was never merely about oil. It helped organise global power by linking trade, finance, diplomacy, energy and military alliances. For half a century, that architecture enabled the United States to occupy a unique position in the international order. But no monetary order is permanent. The gold standard yielded to Bretton Woods; Bretton Woods yielded to the petrodollar. The petrodollar now appears to be entering another transition. It was born from the marriage of oil, finance and military power. Its gradual degeneration is emerging from the fragmentation of those same forces. Whether that process ultimately produces a new global monetary order remains uncertain. What is increasingly evident is that another major transition in global economic and geopolitical power is under way.
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The writer is a former physicist and nuclear engineer at the BAEC and Professor Emeritus of economics at Eastern Michigan University, USA