China and Russia Energy Access Amid Hormuz Strait Disruptions

The ongoing conflict involving Iran and the United States has led to significant disruptions in maritime traffic through the Strait of Hormuz, a critical chokepoint for global energy supplies [1]. While the situation has created systemic supply risks, observers are analyzing how major powers like China and Russia navigate these constraints to maintain energy access [1].

Key takeaways

• China remains heavily dependent on maritime imports for liquid fuels, with roughly two-fifths of its crude oil sourced from Gulf producers [1].
• Independent "teapot" refineries in China have historically facilitated the import of discounted Iranian crude, though these networks are sensitive to sanctions [1].
• Russia’s ability to provide an energy buffer for China is limited by aging infrastructure and competition from other buyers like India [1].
• Analysts suggest that if the Strait of Hormuz remains obstructed, Brent crude prices could potentially rise toward $200 per barrel [1].
• The use of energy exports as political leverage carries long-term risks, as seen when Russia’s attempt to use gas supplies as a tool against Europe ultimately led to a permanent shift in European energy sourcing [2].

Strategic Exposure and Supply Constraints

China’s energy strategy faces a fundamental contradiction: while it has expanded storage and diversified suppliers, it remains reliant on maritime routes it does not control [1]. The Strait of Hormuz is essential for the transit of oil and liquefied natural gas, and its current instability has transformed a long-recognized strategic risk into an immediate constraint [1]. Although China holds an estimated 1.4 billion barrels in crude inventory, these reserves only provide a temporary cushion rather than a long-term solution to the underlying dependence on external flows [1].

The refining sector further complicates China's position. State-owned refiners largely retreated from direct purchases of sanctioned Iranian crude following 2018 U.S. sanctions, leaving smaller, independent refineries in Shandong to absorb the risk [1]. While this arrangement allowed for continued access to discounted oil, it introduced opacity and inefficiency into the system [1]. Furthermore, while Russia and Central Asian pipelines offer an alternative, they lack the scalability to fully offset maritime disruptions, and Russian flows face intensifying competition from other international buyers [1].

Why it matters

The disruption of the Strait of Hormuz serves as a stress test for the global energy system and China’s macroeconomic stability. With China already navigating domestic challenges such as a property downturn and deflationary pressures, a sustained energy shock could act as a systemic stress multiplier [1]. The situation highlights the limits of using energy as a bargaining chip; as seen in the case of Russia’s pipeline gas exports to Europe, aggressive use of energy leverage can force importing nations to permanently restructure their energy systems, eventually eroding the exporter's market share [2]. As the crisis continues, the viability of independent refiners and the potential for prolonged price volatility remain central concerns for global energy markets [1].