The $116 Barrel: How Closing the World's Most Critical Waterway Starved China's Energy Supply and Delivered Australia's Biggest Energy Windfall
Every decade or so, a single geopolitical event reshapes the global energy order overnight. On 1 March 2026, it was the closure of the Strait of Hormuz. For most of the world, the consequences were immediate and painful. For Australia, they were unexpectedly profitable. This paper examines how the crisis reshaped China's energy needs and what that redirection meant for Australian LNG and crude oil markets.
1. Introduction
The Strait of Hormuz (Figure 1.0) is a 33-kilometre waterway located between Iran and Oman and is widely considered the most consequential energy chokepoint in the world. On any given day, approximately 21 million barrels of oil and around 19% percent of global LNG supply pass through it (Britannica, 2026; OilPrice.com, 2025, Figure 1.1). On 1 March 2026, that flow collapsed. Following the US-Israeli Operation Epic Fury, a coordinated strike campaign that killed Iranian Supreme Leader Ali Khamenei and triggered outrage within the IRGC, Tehran initiated a wave of retaliatory actions across the Middle East. As part of this response, Iranian forces effectively blockaded the Strait of Hormuz and warned that any tanker attempting to transit the passage could be targeted. Tanker transits fell from 24 per day to near zero almost overnight. Brent crude surged past $100 per barrel for the first time in four years, briefly reaching $116 before retreating (Trading Economics, 2026).
2. The Broad Energy Infrastructure Crisis
The disruption, however, extended well beyond the Strait itself. Iran’s retaliatory strikes systematically targeted energy infrastructure across six countries in under a week, creating a supply shock that no single reserve could easily absorb. After an Iranian drone struck Saudi Aramco directly, the company was forced to shut down its Ras Tanura Refinery, one of the world’s largest oil processing facilities with a capacity of roughly 550,000 barrels per day (FinancialContent, 2026).
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The UAE’s Ruwais Industrial Complex, capable of processing 922,000 barrels per day and serving as the central hub for Abu Dhabi’s entire downstream energy operations, was similarly forced offline after a drone strike ignited a fire at the site (Al Jazeera, 2026). Most critically, QatarEnergy announced a full halt to liquefled natural gas production at Ras Laffan Industrial City, the world largest LNG producer, sending Asian LNG prices surging nearly 39% and European gas prices up to 50% within hours of announcement (UNCTAD, 2026).
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Although many countries depend on these major producers for their daily oil and LNG supplies, the heightened risks to exports caused the market to react, driving prices upward. Australia, a country which relies mostly on Asian refineries (South Korean, Japanese, Malaysian, etc) for its oil, is now put in a strange position. Although limited by supply, they benefit from this situation from its largest trade partner, China.
3. China’s Energy Exposure and Strategic Resilience
As the world's largest crude oil importer, China brings roughly 11.6 million barrels per day, with over 70% of its total consumption dependent on imports (Downs, 2026). Of those imports, approximately 42% of crude oil originates from Middle Eastern nations, while 31% of China’s LNG supply comes from the same region, with Qatar alone accounting for 28% (Columbia University Center on Global Energy Policy [CGEP], 2026). Critically, up to 45-50% of China’s crude oil imports transit the Strait of Hormuz, meaning Iran’s closure of the waterway placed nearly half of China’s primary energy supply at direct risk (CGEP, 2026). However, China is not without defenses. As of 2 March 2026, China held 1.39 billion barrels of oil in strategic storage, enough to cover approximately 120 days of net crude imports at 2025 levels (CGEP, 2026). China has also been stockpiling aggressively throughout 2025, importing a record-high 11.6 million barrels per day as geopolitical tensions mounted, with national oil companies planning an additional 169 million barrels of new storage capacity across 2025-2026. While China may have been prepared for a contingency of this sort, a prolonged disruption to the Strait would impose significant pressure on its energy security, forcing Beijing to draw down strategic reserves and accelerate trade efforts to their favour.
4. Australia’s Benefit
LNG (Liquefied Natural Gas)
Following tightening conditions in China’s LNG market and reduced inflows caused by major supply chain disruptions, the country was compelled to pivot toward Australian LNG imports. Despite already being Australia’s largest LNG export customer, these pressures drove Beijing further. Australia’s key LNG assets are strategically positioned to supply Asian markets without exposure to the Strait of Hormuz, enhancing Australia’s role as a reliable source. On 1 March 2026, Woodside Energy's share price surged 11%, marking its largest gain in six years. For investors, the Hormuz crisis signals a structural shift: Middle Eastern supply dependence is now widely recognised as a vulnerability, and Australian producers with geographically secure capacity are likely to command sustained pricing power.
Crude Oil
The crude oil channel delivered a parallel windfall. Brent crude surged from pre-crisis levels to a peak of US$116. Unlike Middle Eastern exporters effectively locked out, Australian producers faced no constraints. As refiners scrambled to replace lost barrels, the historical discount for Australian crude compressed or inverted entirely. This sustained elevation inflated net asset values of reserves, strengthening the case for expansion projects. Smaller pure-play producers like Karoon Energy gained 18.64% over March. The crisis served as a live stress test of Australian energy equities, and the result was unambiguous: geographically insulated producers carry deeply embedded leverage to market dislocations.
5. ASX Implications
The divergence between the ASX Energy Index (XEJ) and the broader ASX 200 (XJO) captures the windfall. While the XJO declined 7.79 points reflecting global anxiety, the XEJ surged 18.51 points. The energy sector's outperformance was structural. Australian producers moved in the opposite direction, their Hormuz-independent assets converting the crisis into record revenues. This confirms that Australia's exposure functions as a genuine geopolitical hedge, appreciating precisely when the broader economy comes under pressure.
6. Conclusion
The Hormuz crisis of 2026 was a structural opportunity for Australia. As Iranian forces closed the world's most critical chokepoint, geographic insulation and independent infrastructure converted into a windfall that spanned LNG, crude oil, and equity markets. The XEJ's 26-point outperformance captures the dynamic: while the broader economy absorbed the shock, the energy sector monetised it. Australia's energy assets are strategic infrastructure in a region defined by risk, and their value is never more apparent than when the alternative disappears.
7. Appendices
8. References
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