BEIJING, July 14 — The 1974 agreement between the United States and Saudi Arabia to price oil exclusively in dollars remains the structural backbone of global currency markets, a practice known as petrodollar recycling that continues to anchor the dollar’s reserve-currency status five decades later. According to data from the Bank for International Settlements, the dollar is used in approximately 88% of all foreign exchange transactions as of 2022.
That dominance is self-reinforcing: the more the dollar is used, the more liquid and stable it becomes, making it the preferred medium for trade and reserves. The dollar is also the currency of choice for international debt issuance.
Foreign holdings of US Treasury securities totaled approximately $7.5 trillion as of 2023. Japan held about $1.1 trillion of that total, making it the largest foreign holder, while China held approximately $859 billion. Central banks hold these dollar-denominated assets as part of their foreign exchange reserves, a core mechanism of the dollar’s role as the world’s reserve currency.
Liquidity lines and crisis response
The Federal Reserve functions as the world’s de facto central bank, a role that became especially visible during the 2008 financial crisis and the 2020 COVID-19 pandemic. During both periods, the Fed provided dollar liquidity through swap lines with other central banks, stabilizing global credit markets that depend on dollar funding. The dollar is the primary invoicing currency for global trade, particularly for commodities like oil.
This arrangement, established through the 1974 US-Saudi agreement, ensures that oil-exporting nations receive dollars for their crude, which they then reinvest in dollar-denominated assets — the recycling mechanism that gives the system its name. The system’s strength lies in its circular logic.
The dollar’s liquidity attracts more users, which in turn deepens that liquidity. International debt issuance in dollars reinforces demand for the currency, while central bank reserve holdings provide a stable base of demand for US Treasury securities. Figures show the dollar’s dominance in foreign exchange markets remains overwhelming.
The BIS survey from 2022 confirmed the dollar’s 88% share of all forex transactions, a figure that has remained broadly stable for years despite periodic speculation about de-dollarization. What to watch next: Any shift in the petrodollar recycling mechanism — whether through bilateral trade agreements that bypass the dollar or changes in Saudi Arabia’s pricing commitments — would have significant implications for the $7.5 trillion in foreign Treasury holdings and the broader architecture of global finance.
For now, the 1974 framework holds.
