Six Months Into the Iran War: Nearly Half of Global Oil Flows Now Run Through Risk Zones

Six months into the Iran war, Reuters reports that almost half of global oil flows are moving from or through war-affected zones, underscoring how quickly the conflict has reshaped the world’s energy logistics. The coverage highlights that the disruption is not limited to Iranian exports, but also touches broader maritime routing and the way crude and refined products are sourced and insured. With the war entering a sustained phase, market participants are increasingly treating energy corridors as strategic assets rather than routine infrastructure. The immediate takeaway is that geopolitical risk is now embedded in the physical flow of oil, not just in futures pricing. Strategically, the finding points to a widening contest over maritime chokepoints, shipping capacity, and the ability to keep trade lanes functioning under threat. Iran’s role as a central node in regional energy flows means the conflict can transmit shocks far beyond its borders, benefiting actors that can reroute supply or absorb higher risk premia. The United States and its partners face pressure to maintain freedom of navigation and prevent escalation that could further tighten supply, while European and Asian importers must balance energy security against political constraints. China and other large buyers are likely to prioritize continuity of supply, even if that means higher costs or more complex contracting. Overall, the war’s energy dimension is turning into a sustained geopolitical lever with asymmetric effects on import-dependent economies. Market and economic implications are immediate for crude benchmarks, shipping and insurance, and downstream refining margins. If nearly half of global flows are exposed to war-zone risk, even partial disruptions can amplify price volatility in Brent and WTI, with knock-on effects for diesel, jet fuel, and petrochemical feedstocks. Higher war-risk premiums typically raise freight costs and can widen spreads between prompt and deferred contracts, while also increasing the likelihood of supply-driven moves in energy equities such as offshore services and tanker operators. Currency and macro channels may follow: oil-importing currencies can face pressure as energy costs rise, while oil-exporter FX may see relative support. The magnitude is difficult to pin down from the Reuters excerpt alone, but the direction is clearly toward structurally higher risk premia and more frequent price spikes. What to watch next is whether the “war-zone” share of flows continues to climb or stabilizes as routes are adjusted and naval/security measures respond. Key indicators include tanker tracking data for rerouting, changes in shipping rates and war-risk insurance premiums, and any reported incidents affecting maritime traffic near contested corridors. On the policy side, monitor US and UK posture statements, any sanctions enforcement or waivers affecting Iranian-linked trade, and signals from China and other major importers about procurement strategies. Trigger points would be any escalation that forces additional rerouting, or any de-escalation that restores safer lanes and reduces insurance costs. Over the next weeks to a few months, the market will likely test whether risk premia compress or remain elevated as the conflict’s six-month mark transitions into a longer horizon.

Geopolitical Implications

• 01

  The conflict is transforming energy corridors into strategic leverage, increasing the bargaining power of actors able to secure or reroute flows.

• 02

  Maritime security posture by US/UK and the response by major importers (notably China) will shape escalation dynamics through risk perception and insurance pricing.

• 03

  War-zone exposure can create second-order political pressure in oil-import dependent economies, potentially accelerating diplomatic bargaining for de-escalation.

Key Signals

• —Tanker AIS tracking: sustained rerouting patterns and longer voyage times through alternative corridors.
• —Marine insurance pricing and war-risk premium changes for Middle East-linked voyages.
• —Crude prompt-deferred spreads and volatility indices for Brent/WTI as a proxy for risk premia.
• —Any reported incidents affecting shipping near the Strait of Hormuz and other contested maritime chokepoints.
• —Sanctions enforcement or waivers affecting Iranian-linked trade flows and related shipping services.