Petrodollar

US dollars earned by oil-exporting nations through crude oil sales, which are priced and settled in dollars worldwide.

The petrodollar system was established in the early 1970s when the US and Saudi Arabia agreed that oil would be priced and traded globally in US dollars. In exchange, the US provided security guarantees to Gulf states. Because every oil-importing country must hold dollars to pay for energy, this arrangement created a massive, sustained global demand for the US currency.

When oil prices rise, petrodollar flows increase: exporting nations accumulate large dollar surpluses, which they "recycle" into dollar-denominated assets — US Treasuries, Western equities, real estate, and sovereign wealth fund investments. This recycling helps keep US borrowing costs lower than they might otherwise be and reinforces the dollar's status as the world's reserve currency.

The petrodollar system has faced increasing pressure as China, Russia, and others push to settle energy trade in non-dollar currencies. Any significant erosion of the arrangement would reduce structural demand for dollars and could have far-reaching implications for US interest rates and global monetary order.

This definition is for informational and educational purposes only. Nothing on Finance Compass constitutes financial, investment, or trading advice. Always conduct your own research and consult a qualified professional before making financial decisions.