Oil surges 9% as U.S. threatens Strait of Hormuz, shaking markets

Herz — World Desk · 14 July 2026 at 00:58 · 30s summary · 3 min read

What we know

On July 14, 2026, crude oil prices jumped over 9%, marking the largest single-day gain since 2020, according to ABC News Australia. The direct cause: the U.S. president threatened to block the Strait of Hormuz — a maritime passage in the Persian Gulf bordered to the north by Iran and to the south by the United Arab Emirates and Oman, serving as the critical chokepoint for a very substantial share of global crude oil exports.

This threat is part of an ongoing military confrontation between Washington and Tehran, which has intensified and is fueling disruptions in global energy markets.

Impact on the Australian dollar

The oil surge coincided with a sharp fall in the Australian dollar. During the night of July 13-14, 2026, the currency broke below the symbolic 0.70 USD threshold, dropping to 0.6910 AUD/USD. Analysts at the Commonwealth Bank of Australia (CBA) — one of Australia's Big Four banks — attribute this decline to concerns about energy supply disruptions via the Strait of Hormuz.

At 7:43 a.m. on July 14, 2026, AUD/USD was trading at 69.17 U.S. cents.

CBA analysts cautioned that continued U.S.-Iran military tension could push AUD/USD down to 0.6847 USD. This level corresponds to the 50% Fibonacci retracement — a technical analysis tool that identifies potential support zones midway between a recent peak and trough.

U.S. inflation data expected on July 14, 2026, could place additional downward pressure on the Australian dollar, according to the same source.

Timeline

1. 13.07 02:00
   The Australian dollar falls below the 0.70 USD threshold to 0.6910 AUD/USD, driven by concerns over U.S.-Iran military escalation and the risk of energy transit disruptions via the Strait of Hormuz.
2. July 14, 2026, morning
   The U.S. president threatens to block the Strait of Hormuz. Military confrontation with Iran intensifies. Crude oil prices surge over 9%, marking the largest single-day jump since 2020.
3. July 14, 2026, 7:43 a.m.
   AUD/USD trades at 69.17 U.S. cents. CBA analysts flag potential support at 0.6847 USD (50% Fibonacci retracement) and warn of additional pressure from U.S. inflation data expected later in the day.