Energy Security versus Geopolitics: ASEAN States Face Tough Choices over Iran’s Strait of Hormuz Passage

Why It Matters

Access to Hormuz directly influences regional oil prices and economic stability, while Iran’s politicised toll system forces ASEAN nations to navigate delicate US‑Iran tensions.

Key Takeaways

• Iran grants passage based on political alignment, not commercial need
• Toll fees can reach up to $2 million per vessel
• ASEAN fuel emergencies spur negotiations for Hormuz access
• Diversifying routes essential as Red Sea and Malacca face threats
• Iran’s selective policy may reshape regional energy trade dynamics

Pulse Analysis

Iran’s decision to weaponise the Strait of Hormuz reflects a classic use of maritime chokepoints for geopolitical leverage. By imposing a vetting scheme and occasional tolls—reports suggest fees as high as $2 million per voyage—Iran can reward nations that stay neutral while penalising those perceived as aligned with the United States or Israel. This strategy has already nudged oil prices above $100 per barrel, a stark jump from the $70‑$85 range that prevailed before the conflict, and it forces global traders to factor political risk into freight calculations.

For ASEAN economies, the stakes are immediate and tangible. Nations such as the Philippines have declared energy emergencies, and Vietnam has temporarily waived fuel taxes to curb soaring pump prices. The prospect of securing toll‑free passage through Hormuz offers a lifeline, yet it also risks signaling tacit acceptance of Tehran’s politicisation of a vital waterway. As a result, policymakers are weighing short‑term relief against long‑term diplomatic costs, while simultaneously exploring alternative corridors—like the Red Sea, the Strait of Malacca, or even overland pipelines—to mitigate over‑reliance on a single chokepoint.

Looking ahead, the Hormuz episode may accelerate broader shifts in global energy logistics. Iran’s alignment with BRICS provides a diplomatic shield that could entice other non‑Western nations to engage on Tehran’s terms, reshaping trade patterns across the Indo‑Pacific. At the same time, the recurring vulnerability of maritime routes underscores the need for resilient supply‑chain architectures, including diversified sourcing, strategic petroleum reserves, and accelerated investment in renewables. Companies and governments that proactively address these challenges will be better positioned to weather future geopolitical shocks.