Why does oil near $100 support the US dollar?

Higher crude can lift global inflation and slow disinflation in the US. Markets then trim Fed rate cut expectations, which props up US yields and the dollar. Geopolitical stress also drives safe-haven demand. Together, those forces push the USD higher and keep Asia FX under pressure until risks ease.

How could this affect the Australian dollar and RBA?

A bigger oil import bill and softer risk appetite can weigh on AUD. If petrol lifts headline CPI, the RBA may prefer patience to assess second-round effects rather than reacting to a temporary energy spike. Clearer guidance will depend on monthly CPI, wages, and how services inflation behaves.

Which ASX sectors are most exposed if crude stays high?

Energy and diversified resources can benefit from stronger cash flows. Airlines, transport, retailers, and consumer discretionary tend to face margin pressure from higher fuel and freight. Firms with strong pricing power, low leverage, and hedging fare better than smaller businesses with thin margins and limited ability to pass on costs.

What portfolio hedges make sense in this backdrop?

Consider a partial USD hedge, shorter bond duration, and some inflation protection via Treasury Indexed Bonds. Quality energy and real-asset exposure can help, sized to risk tolerance. Keep liquidity for opportunities and avoid concentrated bets on a single geopolitical outcome, as conditions can change quickly.

Global Market Insights

Oil Near $100 March 15: Asia FX Weak as Hormuz Risk Lifts USD

ByDanny Kontos March 15, 2026

Oil near $100 is back in focus after tanker attacks raised Strait of Hormuz risk. The move revives inflation fears, props up the US dollar, and leaves Asia FX under pressure as markets trim Fed rate cut expectations. For Australia, higher crude threatens petrol costs, squeezes consumer demand, and complicates the RBA’s path. We outline what this means for AUD, ASX sectors, and practical portfolio steps while geopolitical risk stays elevated.